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DIVISION 8

Doors and Windows

"310909 AR305555

SECTION 08110STEEL DOORS AND FRAMES

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to deliver thefollowing as shown and as specified herein:

1. Steel hollow-metal doors.

2. Pressed-metal door, panel and glass frames.

3. All fasteners, frame closure pieces, system reinforcing and appurtenances required.

4. Doors, frames, and components shall be galvanized steel.

1.02 RELATED WORK NOT INCLUDED

A. Installation of doors is included in Section 06100. Building-in of frames in masonry isincluded in 04200, and installation of frames in completed openings is included inSection 06100 but as specified herein.

8. Painting is included in Section 09902.

C. Finish hardware is included in Section 08710.

1.03 SUBMITTALS

A. Submit to the Government Contracting Officer as provided in Section 01300, shopdrawings of all metal doors, frames, panels, and appurtenances.

1. Shop drawings shall show elevations and details of each frame type, schedule ofdoors and frames, door elevations and details, conditions at openings with various

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wall thicknesses and materials, location and installation requirements forhardware, thickness of materials, joints and connections and trim.

2. Where approved to be fabricated in more than one piece, locate and detail fieldsplices and.indicate complete instructions for making field splices.

B. Hardware templates shall be furnished to the door manufacturer by the Contractor forcorrect hardware alignment and reinforcing.

C. Provide samples and certification as follows:

1. Door frame corner with 6-inch long legs showing construction with the galvanizedmaterial specified, welding, touch-up and priming.

2. Door panel corner, 6-inch square, showing door and insulating materials,construction and finishing as specified above.

3. Provide certification as approved that all materials and construction requirementsherein specified will be met in the project.

1.04 QUALITY ASSURANCE

A. Provide custom hollow metal work manufactured by a single firm specializing in theproduction of this type of work, unless otherwise acceptable to the Government SiteRepresentative.

B. Provide custom hollow metal work by one of the following or equal:

1. Ceco Door Products

2. Republic Doors-Frames

C. Provide fire-rated hollovy metal doors and frames investigated and tested as fire doorassemblies, complete with type of fire door hardware to be used. Identify each firedoor and frame with Underwriters Laboratories labels, indicating applicable fire ratingof both door and frame. Construct assemblies to comply with NFPA Standard No. 80,and as herein specified.

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1.05 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials in manufacturer's original unopened and undamaged packages withlabels legible and intact. Doors and panels shall be individually wrapped in corrugatedcardboard with wood strips on vertical edges and banded with metal straps. Storematerials in unopened packages in a manner to prevent damage from the environmentand construction operations. Handle in accordance with manufacturer's instructions.

PART 2 PRODUCTS

2.01 MATERIALS

A. Galvanized steel sheets - Zinc-coated carbon steel sheets of commercial quality,complying with ASTM A526, with ASTM A525, G90 zinc coating, mill phosphatized.

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B. Zinc-rich primer - 95 percent metallic zinc duct primer in a vehicle compatible with thespecified painting system. Apply to properly prepared substrates where galvanizing isdamaged by fabrication.

C. Supports and anchors - Fabricate of not less than 16-gauge sheet metal. Galvanizeafter fabrication units complying with ASTM A153, Class 8.

D. Inserts, bolts and fasteners - Hot-dip galvanize, complying with ASTM A153, Class C or Das applicable.

2.02 FABRICATION, GENERAL

A. Fabricate metal units to be rigid, neat in appearance, and free from defects, warp, orbuckle. Accurately form metal to required sizes and profiles. Fit and assemble units inthe manufacturer's plant including units which are approved to be partiallydisassembled and field spliced. Weld exposed joints continuously; grind, dress, andmake smooth, flush, and invisible. Metallic filler to conceal manufacturing defects isnot acceptable. Clearly identify work that cannot, where approved, be permanentlyfactory assembled before shipment, to assure proper assembly at the project site.

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B. Exposed fasteners - Unless otherwise indicated, provide countersunk flat Phillips headsfor exposed screws and bolts.

C. Prepare metal units to receive mortised and concealed finish hardware, includingcutouts, reinforcing, drilling, and tapping in accordance with final Finish HardwareSchedule and templates provided by hardware supplier. Comply with applicablerequirements of ANSI A115 series specifications for door and frame preparation forhardware.

D. Reinforce metal units to receive surface-applied hardware. Drilling and tapping forsurface-applied finish hardware may be done at project site.

E. Shop Painting

1. Clean, treat, and paint exposed galvanized surf aces of fabricated metal units.

2. Clean steel surfaces of mill scale, rust, oil, grease, grit, and other foreign materialsand apply approved zinc-rich primer to galvanized surfaces damaged infabrication.

3. Apply pretreatment to cleaned metal surfaces, using cold phosphate solution(SSPC-PT2), hot phosphate solution (SSPC-PT4) or basic zinc chromate-vinyl butyralsolution (SSPC-PT3).

4. Apply one full shop coat of prime paint within time limits recommended bypretreatment manufacturer. Apply a smooth coat of even consistency to provide auniform dry film thickness of not less than 2.0 mils.

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2.03 DOORS

A. General

1. Provide flush design doors, 1-3/4-inch thick, seamless hollow construction, unlessotherwise indicated.

2. For single-acting swing doors, bevel both vertical edges 1/8 inch in 2 inches.

3. Provide filler of mineral-wool or other approved insulating material solidly packedfull door height to fill voids between inner core reinforcing members. No asbestosproducts will be allowed. Providea "U" factor of 0.16 max! mum for exterior doors.

B. Galvanized Steel Doors

1. Fabricate doors of two outer, galvanized, stretcher-leveled steel sheets not lessthan 16gauge. Construct doors with smooth, flush surfaces without visible jointsor seams on exposed faces or stile edges. Provide weep hole openings in thebottom of doors to permit escape of entrapped moisture.

2. Reinforce inside of doors with vertical galvanized sheet steel sections not less than22 gauge. Space vertical reinforcing 6-inch outside circumference and extend fulldoor height. Spot-weld at not more than 5-inch outside circumference to both facesheets.

3. Reinforce tops and bottoms of doors with 16 gauge horizontal steel channelswelded continuously to outer sheets. Close top and bottom edges to provideweather seal, as integral part of door construction or by addition of inverted steelchannels.

4. Provide Z or L shape astragals of 14 gauge galvanized steel at double exteriordoors. Screw fasten to lead edge of active leaf.

C. Finish hardware reinforcement - Reinforce doors using galvanized steel for requiredfinish hardware, as follows:

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1. Hinges - Steel plate 3/16-inch thick by 1-1/2-inch wide by 6 inches longer thanhinge, secured by not less than 6 spot-welds.

2. Mortise locksets and dead bolts • 14 gauge steel sheet, secured with not less than2 spot-welds.

3. Cylinder locks -12 gauge steel sheet, secured with not less than 2 spot-welds.

4. Flush bolts -12 gauge steel sheet, secured with not less than 2 spot-welds.

5. Surface-applied closers - 12 gauge steel sheet, secured with not less than 6 spot-welds/

D. Miscellaneous steel shall be fabricated and installed in accordance with the Drawingsand shall include: beams, angles, support brackets, and accessories; galvanized steelpipe for bollards; hold down straps and lugs; splice plates, anchor bolts (except forequipment furnished in Division 15); And any other miscellaneous steel called for onthe Drawings and not otherwise specified.

2.04 FRAMES

A. Provide pressed metal frames for doors and transoms.

B. Fabricate frames of full-welded unit construction, with corners mitered, reinforced,continuously welded full depth and width of frame.

C. Form frames of 14 gauge galvanized steel sheets.

D. Finish hardware reinforcement - Reinforce frames using galvanized steel for requiredfinish hardware, as follows:

1. Hinges and pivots - Steel plate 3/16-inch thick by 1-1/2 inches wide by 6 incheslonger than hinge, secured by not less than 6 spot-welds.

2. Strike pi ate clips-Steel plate 3/16-inch thick by 1-1/2 inches wide by 3 inches long.

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3. Surface-applied closers - 12 gauge steel sheet, secured with not less than 6 spot-welds.

E. Jamb anchors - Furnish jamb anchors as required to secure frames to adjacentconstruction, formed of not less than 18 gauge galvanized steel.

1. Masonry construction - Adjustable, flat, corrugated, or perforated, t-shaped to suitframe size, with leg not less than 2 inches wide by 10 inches long. Provide U.L.approved fixed anchors at labeled openings. Furnish at least three anchors perjamb.

F. Floor anchors - Provide floor anchors for each jamb and mullion which extends to floor,formed of not less than 14 gauge galvanized steel sheet, as follows:

1. Monolithic concrete slabs - Clip type anchors, with two holes to receive fasteners,welded to bottom of jambs and mullions.

2. Separate finish (seamless flooring areas) concrete slabs - Adjustable type withextension clips, allowing not less than 2-inch height adjustment. Terminate bottomof frames at finish floor surface.

G. Head strut supports - Provide 3/8-inch by 2-inch vertical steel struts extending from topof frame at each jamb to supporting construction above, unless frame is anchored tomasonry or to other structural support at each jamb. Bend top of struts to provideflush contact for securing to supporting construction above. Provide adjustable boltedanchorage to frame jamb members.

H. Head reinforcing - For frames over 4feet0 inches wide in masonry wall openings,provide continuous steel channel or angle stiffener, not less than 12 gauge for fullwidth of opening, welded to back of frame at head.

I. Spreader bars - Provide removable spreader bar across bottom of frames, tack weldedto jambs and mullions.

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j. Plaster guards - Provide 26 gauge galvanized steel plaster guards or dust cover boxes,welded to frame, at back of finish hardware cutouts where mortar or other materialsmight obstruct hardware installation.

2.06 STOPS AND MOLDINGS

A. Provide stops and moldings around solid and glazed panels in hollow metal doors andunits and in frames to receive doors, where indicated and as shown.

B. Form fixed stops and moldings integral with frame, unless otherwise indicated.

C. Provide removable stops and molding where indicated or required, formed of not lessthan 20-gauge steel sheets matching steel of frames. Secure with countersunk machinescrews spaced uniformly not more than 12 inches outside circumference. Form cornerswith butted hai rl i ne j oi nts.

PART 3 EXECUTION

3.01 INSTALLATION

A. Install hollow metal units and accessories in accordance with approved shop drawings,manufacturer's data, and as herein specified.

B. Setting masonry anchorage devices - Provide masonry anchorage devices whererequired for securing hollow metal frames to in-place concrete construction. Setanchorage devices opposite each anchor location, in accordance with details on shopdrawings and anchorage device manufacturer's instructions. Leave drilled holes rough,not reamed, and free from dust and debris.

C. Ste«{ construction - Drill and tap for anchorage as shown on approved shop drawings.

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D. Placing Frames - Set frames accurately in position, plumbed, aligned, and bracedsecurely until permanent anchors are set. After wall construction is complete, removetemporary braces and spreaders leaving surfaces smooth and undamaged.

1. In masonry construction, coordinate frame setting with the building of masonrywails.

2. Make field splices in frames as detailed on final approved shop drawings, weldedand finished to match factory work.

3. Remove spreader bars only after frames or -bucks have been properly set andsecured.

3.02 ADJUSTMENT AND TOUCH-UP

A. Leave work in complete and proper operating condition. Remove and replacedefective work, including doors or frames which are warped, bowed or otherwiseunacceptable.

B. Immediately after erection, sand smooth any rusted or damaged areas of prime coatand apply touch-up of compatible air-drying primer.

END OF SECTION

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SECTION 08710FINISH HARDWARE

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish and deliver to the project site all finish hardware for hollow metal doors andadditional padlocks as hereinafter specified and scheduled.

B. The schedule included herein designates the type and quality of the hardware desired.The brand of hardware furnished shall be equivalent to the brand scheduled.

C. Furnish all templates and schedules required by the manufacturers of the metal doorsand frames to enable the manufacturers to make proper provision in their work toreceive the finish hardware. All locks, lock strikes, and flush bolts shall be made to ANSIstandard dimensions.


A. Installation of hardware is included under Section 06100 as specified.

1.03 SUBMITTALS

;A. Samples

1. If required by the Government Project Manager, a sample of each item of hardwareproposed for use shall be submitted for approval not later than 10 days afterrequested.

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B. Hardware Schedules

1. Submit to the Government Project Manager a complete hardware schedule asprovided in Section 01300 for shop drawings.

2. No templates shall be distributed until the hardware schedule has been approvedby the Government Project Manager.

3. Provide approved physical hardware items to door manufacturers as required forfabrication onto doors.

1.04 PRODUCT HANDLING

A. Packing and Marking

1. All hardware shall have the required screws, bolts and fastenings necessary forproper installation, wrapped in paper and packed in the same package as thehardware. Each package shall be legibly labeled, indicating that portion of thework for which it is intended.

1.05 QUALIFICATIONS

A. The hardware supplier shall have in his employ one or more members of the AmericanSociety of Architectural Hardware Consultants, who shall be responsible for thepreparation and execution of the work of this Section.

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PART 2 PRODUCTS

2.01 . MATERIALS

A. All hardware shall be best grade, entirely free from imperfections in manufacture andfinish. Qualities, weights, and sizes specified herein are the minimum that will beaccepted. All U.L. labeled doors shall have U.L. approved hardware.

B. Hardware Items

1. Hinges - Stainless steel, Stanley FBB191, 4-1/2 x 4-1/2 interior and FBB199, 5 x 4-1/2exterior. Equals-Hager, McKinney.

2. Locksets - Sargent 8100 Series, with LNH level handle and rosette with wrought boxstrike, stainless steel, six pin cylinders. Furnish in 8105 operation unless otherwisescheduled. Equals-Corbin, Russwin.

3. Door Closers - Sargent 250 Series, with rust inhibitor in hydraulic fluid, exteriorprimed compatibly to receive finish paints. On plastic covers provide no primepaint. Provide with cushion stop arm where no separate stop is provided and otherarm functions as scheduled. Equals - LCN4000 Series, Norton 7700 Series.

4. Kick Plates - Stainless steel, 8-inch high x 0.050 inch thick x 2-inch less width of door(LWOD), 1-inch LWOD, at double doors.

5. Stops - Ives 408-1/2 - wall type and where floor type required, Ives 436 and 438 asrequired by floor condition. Equals - Baldwin, Quality.

6. Flush Bolts - Ives 12-inch, No. 458 equals - Baldwin, Glynn-Johnson.

7. Sound/Weather Seals - Zero 350 mortised (351 at double doors) automatic doorbottom x zero 328 surface type head and jambs. Meeting stile astragal - zero328-M on interior double doors with sound seal. All clear aluminum. Equals-Pern ko, Reese.

8. Silencers-Glynn-JohnsonGJ64. Equals-Baldwin,Quality.

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9. Thresholds - Zero built-up of two zero 68 and one zero 675. At seamless flooring -zero 1674 (with beveled edge as required). All in aluminum. Equals - Pemko,Reese.

10. Pull handles - quality 161-8-inch, or as otherwise scheduled. Equals - Brookline,Baldwin.

11. Overhead Stop and Holders • Sargent 590 Series. Equal - Glynn Johnson, Corbin.

12. Padlocks - Sargent 1756 HS Cylinder Padlock Equals-Yale, Best.

C. Closers shall be sized as recommended by manufacturer and as approved for size andlocation of door served.

D. On exterior doors, provide hinges with pins not removable when door is closed.Provide 1/2 pair hinges for each 2 foot 6-inch or part thereof of door height.

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E. Provide type of threshold required by the Door Schedule for particular doors andprovide weather seals at exterior doors and where scheduled.

2.02 FINISHES

A. Base metal for hardware Items 1, 2, 4, 10 and 11 shall be stainless steel. Base metal forHardware Items 5,6 and 12 shall be bronze or brass.

B. Finish

1. Stainless steel finish shall be US32D.

2. Chrome plated, bronze or brass fmish shall be US26D.

2.03 KEYING

A. All cylinder locks including padlocks shall be masterkeyed in one new set. All cylindersshall be construction keyed for Contractor's use during construction period. Installpermanent cylinders when directed.

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B. Furnish:

1. Three masterkeys2. Two change keys with each lock3. Three construction day keys

END OF SECTION

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SECTION 08800GLAZING

PART1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to install glazing asshown and as specified herein.

1.02 SUBMITTALS

A. Submit to the Government Project Manager two representative samples of each typeglazing material specified below. Provide samples of glass in 12-inch square minimumsize.

Resubmit any or all as required until approved.

B. Submit to the Government Contracting Officer, as provided in Section 01300, full sizeshop drawings showing step-by-step glass setting and sealing procedures. Submitcertification that wired glass is U.L. tested and approved.

1.03 DELIVERY, STORAGE AND HANDLING

A. All materials for the work of this Section shall be delivered, stored and handled so as topreclude damage of any nature. All glass shall be delivered and stored in its originalcontainer, plainly marked with identification of material and maker. Materials inbroken containers or in packages showing water marks or other evidence of damageshall not be used and shall be removed from the site.

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PART 2 PRODUCTS

2.01 MATERIALS

A. Each piece of glass shall bear the manufacturer's label showing the strength, grade,thickness, type, and quality of the glass, and all labels shall remain in place until theglass has been set and inspected by the Government Site Representative except thatsafety and insulating glass shall have permanently etched labels. When glass is not cutto size by the manufacturer and is furnished from local stock, the glass and glazingsubcontractor shall submit an affidavit stating the strength, grade, thickness, type,quality, and manufacturer of the glass furnished.

B. All non-labeled door glass and sidelight glass shall be clear tempered glass, 1/4-inchthick herculite by PPG Industries, equal by L.O.F., A.F.G., or equal. Exterior sidelightsshall be tempered insulating glass as specified above.

C. All labeled door glass shall be 1/4-inch thick clear polished diamond welded wiredglass, U.L listed.

D. Glazing compound shall be 999 Glazing Silicone by Dow, equal by General Electric,Sonneborn or equal.

E. Glazing tape shall be Tremco No. 440, Pecora Extru-Seal Butyl Rubber Tape or Dap Inc.Butyl Rubber Sealing Tape or equal. Tape shall be compatible with the glazingcompound.

F. Setting blocks, 85 plus or minus 5 durometer, and spacer blocks, 50 durometer, shall beclosed cell neoprene.

G. Glazing strips for hollow metal door and bead glazing, shall be adhesive faced closedcell PVC foam strip, 1/8-inch thick, 32 durometer hardness.

H. Glazing compound for labeled construction glazing shall meet NFPA requirements fora hard setting glazing compound with 90 percent inert and non-flammablecomponents as approved.

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PART 3 EXECUTION

3.01 INSTALLATION

A. General

• 1. All glazing work shall be performed in accordance with the standards of the FlatGlass Marketing Association's Glazing Manual, latest revision, unless otherwisenoted or specified, and shall also conform to the approved shop drawings and themanufacturer's glazing instructions.

2. All frame elements shall have been painted where required and shall be. thoroughly cleaned before glazing commences.

B. Exterior Glazing

1. Set tape 1/8-inch down from top of fixed bead.

2. Run a bead of approved gun-grade sealant from base of tape to bottom of glazingpocket.

3. Place setting blocks, insert glass and press against tape and sealant until continuousperimeter contact is made.

4. Run a heel bead of approved sealant along exposed edge of glass.

5. Apply glazing bead.

6. Install spacer between glazing bead and glass.

7. Run a continuous finish bead of sealant to fill voids above spacers on interior sideand to fill void above tape on exterior side.

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C. Door and Interior Glazing - Non-Labeled Openings

1. After doors, rabbets and glazing beads for pressed metal work have been painted,install continuous glazing strip against rabbet.

2. Set glass in place on setting blocks and install another continuous glazing striparound perimeter of glass.

3. Install glazing beads, setting against glazing strips, firmly, in order to place a smallamount of pressure against the strips.

D. Labeled Opening Glazing

1. Bed glazing rabbet in the approved hard-setting compound.2. Set glass using setting blocks.3. Face glass in the same compound and set beads.4. Tool compound flush and full between glass and metal surrounds, adding

compound as required.

3.02 PROTECTION AND CLEANING

A. Clean and remove all labels from all glass when directed and clean glazing compoundfrom frames around glass installed under this Section upon completion of the work. Alldefective or broken glass and glass broken because of faulty setting shall be replacedunder this Section.

B. All glass shall be protected under this Section from accidental damage with tapes orstreamers attached to the sash or frame. No tape or streamer shall contact the glass.

END OF SECTION

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DIVISION 9

Finishes

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SECTION 09901SURFACE PREPARATION AND SHOP PAINTING

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required for the surfacepreparation priming and painting of shop fabricated items including tanks, mechanicalequipment, valves and other ferrous metal components.


A. Field painting is included in Section 09902.

1.03 SUBMITTALS

A. Submit to the Government Contracting Officer, as provided in Section 01300 for shopdrawings, manufacturer's specifications and data on the proposed primers anddetailed surface preparation, application procedures, and dry mil thicknesses.

PART 2 PRODUCTS

1

2.01 MATERIALS

A. All painting materials shall be fully the equal to those manufactured by the TnemecCompany, Inc., Valspar Company, or the Carboline Company. The painting schedulehas been prepared on the basis of Tnemec products (unless otherwise noted) andTnemec recommendations for application. No brand other than those named will beconsidered for approval unless the brand and type of paint proposed for each item inthe following schedule, together with sufficient data substantiated by certified testsconducted at no expense to the Government to demonstrate its equality to the paint(s)named, is submitted to the Government Contracting Officer in writing for approvalwithin 30 days after the signing of the General Contract. The type and number of testsperformed shall be subject to the Government Contracting Officer's approval.

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B. Submerged Ferrous Surfaces. Shop primer shall be one coat of Tnemec Series 66-1255(beige) primer, dry film thickness 3.0 to 5.0 mils, by Tnemec Company, or equal byCarboline, Valspar, or equal. Shop paint shall be one coat of TnemecSeries 104-HS-AA-90 (white), dry film thickness 6.0 to 8.0 mils, by Tnemec Company orequal by Carboline, Valspar, or equal

C. Non-Submerged Surfaces. Shop primer shall be one coat of Tnemec Series 66-1255primer (beige), dry film thickness 3.0 to 5.0 mils, by Tnemec Company, or equal byCarboline, Valspar, or equal. Shop paint shall be one coat (spray) or two coats (roller)of Tnemec Series 66 of the appropriate color, dry film thickness of 4.0to 6.0 mils orequal.

D. Mechanical Equipment and Valves. Shop primer shall be one coat Tnemec Series 37-78(gray) Chem-Prime, dry film thickness 2.5 to 3.5 mils, or equal. Shop paint shall be onecoat (spray) or two coats (roller) Tnemec Series 66 of the appropriate color, dry filmthickness 4.0 to 5.0 mils, or equal.

E. Non-Painted Surfaces. Gears, bearings surfaces, and other similar surfaces obviouslynot to be painted shall be given a heavy shop coat of grease or other suitable rust-resistant coating. This coating shall be maintained as necessary to prevent corrosionduring all periods of storage and erection and shall be satisfactory to the GovernmentSite Representative up to the time of the final acceptance test.

F. Compatibility of Coating Systems. Shop painting shall be done with primers that areguaranteed by the manufacturer to be compatible with their corresponding primersand finish coats specified in Section 09902 for use in the field and which arerecommended for use together.

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PARTS EXECUTION

3.01 APPLICATION

A. Surface Preparation

1. Submerged components scheduled for priming and painting, as defined above,shall be sandblasted clean in accordance with SSPC-SP-10 near-white, immediatelyprior to priming.

2. Non-submerged components scheduled for priming and painting, as definedabove, shall be sandblasted clean in accordance with SSPC-SP-6, CommercialGrade, immediately prior to priming.

3. Mechanical equipment and valves scheduled for priming and painting as definedabove shall be cleaned in accordance with SSPC-SP3 power tool cleaningimmediately prior to priming.

4. Surfaces shall be dry and free of dust, oil, grease, and other foreign materialbefore prim ing.

5. Shop primer and paint in accordance with approved manufacturer'srecommendations.

B. Non-Painted Surfaces. Apply approved coating per manufacturer's recommendations.

END OF SECTION

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SECTION 09902FIELD PAINTING

PARTI GENERAL

1.01 SCOPE OF WORK

A. Furnish all materials, labor, equipment, and incidentals required to perform all thepainting necessary to complete this Contract in its entirety.

B. It is the intent of these Specifications to paint all exposed structural and miscellaneoussteel; steel doors; steel door frames, door closers, and surface sound/weather seals;hatch covers, steel louvers, mechanical and electrical equipment, posts, steel tanksinside the building, pipe, fittings, and valves; structural steel components; buildingcolumns; concrete block .wails, all as specified in the attached painting and colorschedules and all other work obviously required to be painted unless otherwisespecified. Provide title signage on pipes, equipment, and components as specifiedherein. Minor items not mentioned in the schedule of work shall be included in thework of this Section where theycome within the general intent of the Specifications asstated herein.

C. The following items will not be painted:

1. Concrete (unless otherwise specified in the painting and color schedules).

2. Finish hardware unless specifically noted otherwise.

3; Factory prefinished architectural components.

4.. Packing glands and other adjustable parts and name plates of mechanicalequipment.

5. Parts of buildings not exposed to sight, unless specifically noted otherwise.

6. Furniture.

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7. Maintenance equipment.

8. Mechanical equipment which has been finished painted in the factory as specifiedin Divisions 11 and 15.


A. Valve identification is included in Section 01170.

B. Shop priming and painting and surface preparation of equipment and piping arespecified in Section 09901 and included in the respective Section with the item to beprimed.

PART 2 PRODUCTS

2.01 MATERIALS

A. All painting materials shall be fully the equal to those manufactured by the TnemecCompany, Inc., Valspar Company, or the Carboline Company. The painting schedulehas been prepared on the basis of Tnemec products (unless otherwise noted) andTnemec recommendations for application. No brand other than those named will beconsidered for approval unless the brand and type of paint proposed for each item inthe following schedule together with sufficient data substantiated by certified testsconducted at no expense to the Government, to demonstrate its equality to thepaint(s) named is submitted to the Government Contracting Officer in writing forapproval within 30 days after the signing of the General Contract. The type and/number of tests performed shall be subject to the Government Contracting Officer'sapproval.

B. All painting materials shall be delivered to the mixing room in unbroken packages,bearing the manufacturer's brand and name. They shall be used without adulterationand mixed, thinned, and applied in strict accordance with manufacturer's directions forthe applicable materials and surface and with the Government Contracting Officer'sapproval before using.

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C. Shop priming shall be done with primers that are guaranteed by the manufacturer tobe compatible with the finish paints to be used.

D. No paint containing lead will be allowed. Oil shall be pure boiled linseed oil.

E. Work areas will be approved by the Government Site Representative for storage and• mixing of all painting materials. Materials shall be in full compliance with therequirements of pertinent codes and fire regulations. Proper containers outside of thebuildings shall be provided and used for painting wastes, and no plumbing fixture shallbe used for this purpose.

2.02 COLOR CODING FOR PIPES AND ACCESSORIES

A. When color coding is specified, it shall consist of color code painting and identificationof all exposed conduits, trough lines and pipelines for the transport of gases, liquids orsemi-liquids, and including accessories such as pumps and valves. See Color Scheduleattached at the end of this Specification.

B. All hangers and pipe support floor stands shall be painted the same color and with thesame paint as the pipe it supports. The piping shall be painted up to but not includingthe flanges attached to the mechanical equipment nor the flexible conduit connectedto electrical motors.

C. The color code establishes, defines, and assigns a definite color for each category ofpipe or each system. Pipe lines which are not listed on the Color Schedule shall beassigned a color by the Government Site Representative and shall be treated as anintegral part of the Contract.

D. All pipes and equipment shall be painted according to Color Schedule attached. Valvesand fittings shall be painted in the color of the main body of the pipe.

2.03 LETTERING OF TITLES

A. The name of the materials in each pipeline and alongside this an arrow indicating thedirection of flow of fluids, shall be indicated on each pipe system. Titles shall not belocated more than 26 linear feet apart and shall also appear directly adjacent to each

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side of any wall the pipeline breaches, adjacent to each side of the valve regulator,flowcheck, strainer cleanout, and all pieces of equipment.

B. Titles shall identify the contents by complete name as shown on Drawings and asapproved at least once in each space through which it passes and thereafter bygenerally recognized abbreviations, letters or numerals as approved. Identification

. title locations shall be determined by the Government Site Representative, but ingeneral; they shall be placed where the view is unobstructed and on the two lowerquarters of pipe or covering where they are overhead. Title should be clearly visiblefrom operating positions especially those adjacent to control valves.

C. Numbers and letters shall be die-cut from 3.5 mil vinyl film and prespaced on carriertape. Adhesive and finish surface shall be protected with one piece removable liners.Color shall be white or black as approved depending on substrate color.

D. Letter size shall be as indicated in the following table:

OUTSIDE DIAMETER OF PIPE OR COVERING SIZE OF LEGEND LETTERS3/4-inch to 1-1/4-inch1-1/2-in to 2-inch2-1/2-into6-inch8-into 10-inchOver 10-inch

1/2-inch3/4-inch1-1/2-inch2-1/2-inch3-inch

E. The system for preparation and application of letters shall be TypeB a.s.i/2 byArchitectural Signing Inc., Marina Del Rey, California; Architectural Graphics Inc.,Norfolk, Virginia; Andco Industries Corporation, Greensboro, North Carolina; or equal.Letter type shall be Optima Bold, upper case. Grid 2 spacing shall be employed. Arrowshall match as approved, letter type and size. The instructions of the manufacturershall be followed in respect to storage, surface preparation and applications of letters.

2.04 TITLES FOR EQUIPMENT, TANKS, AND COMPONENTS

A. Titles, in text as shown for each piece and as approved, shall be provided on allequipment, interior tanks and components using 1 inch high Optima Bold upper case,Grid 2 spacing, white or black in color as approved depending on substrate. Titles shallbe mounted at eye level on machines where possible or at the uppermost broad

R3310909 °9902-4 AR30558I

vertical surface of low equipment. Where more than one piece of the equipment itemto be titled exists, the items shall be numbered consecutively as indicated on themechanical drawings or as directed by the Government Site Representative; forexample Pump No. 1, Pump No. 2, etc. Titles shall be composed in more than one line ifrequired and shall be composed and justified on the left-hand side as approved.Provide titles also on factory painted and on nonpainted pieces.

2.05 METAL TAGS

A. For pipelines smaller than 3/4-inch in diameter, securely fasten metal tags, 2-1/2-inch by1/2-inch, of 17 Birmingham Metal Gauge Brass with lettering etched and filled withenamel. Tags shall be approved by the Government Site Representative.

2.06 EXTRA PAINT

A. Furnish one unopened gallon can of each type and each color of paint used.

PART 3 EXECUTION

•*• 3.01 PREPARATION OF SURFACES-s$

A. All surfaces to be painted shall be prepared as specified herein and shall be dry andclean before painting.

B. All metal welds, blisters, etc., shall be ground and sanded smooth. All pits and dentsshall be filled and all imperfections shall be corrected so as to provide a smooth surfacefor painting. All rust, loose scale, oil, tar and asphalt bearing coatings, grease and dirtshall be removed by use of approved solvents, wire brushing, grinding or sanding.

C. Submerged ferrous metal surfaces will be sandblasted clean in accordance toSSPC-SP-10 near-white prior to priming.

D. Non-submerged ferrous metal surfaces will be sandblasted clean in accordance toSSPC-SP-6 commercial grade prior to priming.

E. Mechanical equipment, piping, valves, and structural steel components will be cleanedin accordance to SSPC-SP3 power tool cleaning prior to priming.

R3310909 09902-5 AR305582

3.02 PAINTING SCHEDULE

A. All colors will be selected by the Government Project Manager based on the ColorSchedule.

B. The following types of paints by Tnemec Company have been used as a basis for thepaint schedule:

1. Series 54-562 filler.2. Series 37-78 Chem-Prime primer.3. Hi-build Epoxoline (Series 66) - polyamide cured epoxy.

C. The following surfaces shall have the types of paint scheduled below applied at the dryfilm thickness (DFT) in mils per coat noted:

1. Submerged Ferrous Metal Surfaces

One coat Series66-1255 (beige) on properly prepared unprimed metal ortouch-up (3.0-5.0 DFT).

One coat (spray) or two coats (roller) Series 104-HS AA90 (white) (6.0-8.0 DFT).

2. Nonsubmerged Ferrous Metal Surfaces

One coat Series 66-1255 (beige) (3.0-5.0 DFT).

One coat (spray) or two coats (roller) Series 66 of the appropriate color(4.0-5.0 DFT).

3. Mechanical Equipment, Piping, Valves, Structural Steel Members

One coat Series 37-78 (grey) Chem-Prime (2.5-3.5 DFT).

, One coat (spray) or two coats (roller) Series 66 of the appropriate color(4.0-6.0 DFT).

R3310909 09902-6 AR305583

4. Concrete Blocks

One coat Series 54-562 filler at the rate of 80 to 100 feet2 covered per gallon.

One coat (spray) or two coats (roller) Series 66 of the appropriate color(4.0-6.0 DFT).

3.03 WORKMANSHIP

A. General

1. At the request of the Government Project Manager, samples of the finished workprepared in strict accordance with these Specifications shall be furnished and allpainting shall be equal in quality to the approved samples. Finished areas shall beadequate for the purpose of determining the quality of workmanship.Experimentation with color tints shall be furnished to the satisfaction of theGovernment Project Manager where standard chart colors are not satisfactory.

2. Protection of furniture and other movable objects, equipment, fittings, andaccessories shall be provided throughout the painting operation. Canopies oflighting fixtures shall be loosened and removed from contact with surface,covered and protected and reset upon completion. Remove all electric plates,surface hardware, etc., before painting, protect and replace when completed.Mask all machinery name plates and all machined parts not receiving a paintfinish. Dripped or spattered paint shall be promptly removed. Lay drop cloths inail areas where painting is being done to adequately protect flooring and otherwork from ail damage during the operation and until the finished job is accepted.

3. On metal surfaces apply each coat of paint at'the rate specified by themanufacturer to achieve the minimum dry mil thickness required. If material hasthickened or must be diluted for application by spray gun, the coating shall bebuilt up to the same film thickness achieved with undiluted material. One gallonof paint as originally furnished by the manufacturer shall not cover a greater areawhen applied by spray gun than when applied unthinned by brush. Deficienciesin film thickness shall be corrected by the application of an additional coat(s). Onmasonry, application rates will vary according to surface texture; however, in nocase shall the manufacturer's stated coverage rate be exceeded. On porous

R3310909 09902-7

surfaces, it shall be the painter's responsibility to achieve a protective anddecorative finish either by decreasing the coverage rate or by applying additionalcoats of paint.

B. Field Priming

1. Steel members, metal castings, mechanical and electrical equipment and othermetals which are'shop primed before delivery at the site will not require a primecoat on the job. All piping and other bare metals to be painted shall receive onecoat of primer before exposure to the weather, and this prime coat shall be thefirst coat as specified in the painting schedule.

2. Equipment which is specified to receive a baked-on enamel finish or other factoryfinish shall not be field painted unless the finish has been damaged in transit orduring installation. Surfaces that have been shop painted and have beendamaged, or where the shop coat or coats of paint have deteriorated, shall beproperly cleaned and retouched before any successive painting is done on them inthe field. Ail such field painting shall match as nearly as possible the originalfinish.

3. Equipment shipped with a protective shop painting coat or coats shall be touchedup to the satisfaction of the Government Site Representative with primers asrecommended by the manufacturer of the finish paint.

C. Field Painting

1. All painting at the site shall be designated as Field Painting and shall be subject tothe approval of the Government Site Representative, and only skilled painters andspecialists, where required, shall be used on the work.

2. All paint shall be at room temperature before applying, and no painting shall bedone when the temperature is below 608F, in dust-laden air, when rain or snow isfalling, or until all traces of moisture have completely disappeared from thesurface to be painted.

R3310909 09902-s AR305585

3. Successive coats of paint shall be tinted so as to make each coat easilydistinguishable from each other with the final undercoat tinted to theapproximate shade of the finished coat.

4. Finish surfaces shall not show brush marks or other irregularities. Undercoats shallbe thoroughly and uniformly sanded with No. 00 sandpaper or equal to removedefects and provide a smooth even surface. Top and bottom edges of doors shallbe painted and all exterior trim shall be back-primed before installation.

5. Painting shall be continuous and shall be accomplished in an orderly manner so asto facilitate inspection. Materials subject to weather shall be primed coated asquickly as possible. Surfaces of exposed members that will be inaccessible aftererection shall be cleaned and painted before erection.

6. All painting shall be performed by approved methods with number of coatsmodified as required to obtain the total dry film thickness specified. Spraypainting shall be performed specifically by methods submitted and as approvedby the Government Contracting Officer.

7. All surfaces to be painted as well as the atmosphere in which painting is to bedone shall be kept warm and dry by heating and ventilation, if necessary, untileach coat of paint has hardened. Any defective paint shall be scraped off andrepainted in accordance with the Government Site Representative's directions.

8. Before final acceptance of the work, all damaged surfaces of paint shall becleaned and repainted as directed by the Government Site Representative.

3.04 CLEANUP

A. At all times keep the premises free from accumulation of waste material and rubbishcaused by employees or work. At the completion of the painting, remove ail tools,scaffolding, surplus materials, and all rubbish from and about the buildings, and leavethe work "broom clean* unless more exactly specified.

B. Upon completion, remove all paint where it has been spilled, splashed, or spattered onall surfaces, including floors, fixtures, equipment, furniture, etc., leaving the workready for inspection.

R3310909 09902-9 AR305586

PART 4 COLOR SCHEDULE BASED ON TNEMEC COMPANY CHROMACOLORS

4.01 EXTERIOR PAINTING

Item

Louvers

Number/Color

To match wall panel

4.02 INTERIOR PAINTING

Item

P. M. FramesH. M. DoorsCMU WallsStl. Stairs and HandrailsColumns, Beams, and GirtsConcrete Walls

Number/Color

BF82 CloudAD12TerraCottaBF82 CloudBU 57 Safety YellowBF82 CloudBF82 Cloud

R3310909 09902-10 AR305587

4.03 PIPING SYSTEMS

Item

Plant Influent SystemIron Oxidation SystemManganese Oxidation SystemIncline Plate Separation SystemPrimary Air Stripper SystemSecondary Air Stripper SystemBio-oxidation SystemSand Filtration SystemCarbon Adsorption SystemEffluent SystemAir Emission SystemSludge Dewatering SystemCompressed Air SystemCaustic Storage TankSulf uric Acid Storage TankChemical Feed Systems

Number/Color

AY82 Arctic IceAY82 Arctic IceAY82 Arctic IceAY82 Arctic IceAY82 Arctic IceAY82 Arctic IceBC22 Anvil GrayAY82 Arctic IceAY82 Arctic IceAY82 Arctic IceBB42 Clear SkyAK42 TwineBR18 Safety BlueBC22 Anvil GrayBC22 Anvil GrayCC1 3 Safety Red

END OF SECTION

R3310909 09902-11 AR305588

DIVISION 11

Equipment

R3310909 AR305589

SECTION 11211NEARGRADIENT EXTRACTION WELL SUBMERSIBLE PUMPS

P-1 TO P-3 AND P-49 TO P-51

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all materials, equipment, and incidentals required to install and field-test theconstant-speed, electric-motor-driven, submersible well pump system as specifiedherein.

B. For this unit there shall be furnished and installed all necessary accessory equipmentand auxiliaries whether specifically mentioned in these Specifications or not, and asrequired for an installation incorporating the highest standards for the type of serviceincluding field testing.


A. Extraction wells are included in Section 02680.

B. Instrumentation and Controls are included in Section 13320.

C. Electrical work, except as herein specified, is included in Division 16.

1.03 EQUIPMENT APPLICATION

A. Vertical submersible pumps shall be used for pumping contaminated groundwaterfrom the neargradient area. Three pumps (P-1 to P-3) shall extract groundwaterbeneath the landfill, and three pumps (P-49 to P-51) shall extract groundwater beneaththe village of Ormrod.

B. Contaminated groundwater characteristics are described on Drawing 0224-5D101.

R3310909 11211-1 AR305590,

1.04 QUALIFICATIONS

A. The equipment covered by this Specification is intended to be standard pumpingequipment of proven ability, as manufactured by reputable concerns having extensiveexperience in the production of such equipment. Equipment specified herein shall befurnished by a single manufacturer. The equipment furnished shall be designed,constructed, and installed in accordance with the best practice and methods, and shalloperate satisfactorily when installed as shown on the Drawings.

B. The near-gradient extraction well submersible pumps shall be manufactured byPleuger or approved equal.

1.05 SUBMITTALS

A. Submit the following in conformance with the Section 01170.

1. Manufacturer's certified rating curves showing pump characteristics of dischargehead, capacity, brake horsepower, efficiency, and total pumping unit weight. Thisinformation shall be prepared specifically for the pump proposed. Catalog sheetsshowing a family of curves will not be acceptable.

2. Literature and drawings describing the equipment in sufficient detail, includingparts list and materials of construction, to indicate full conformance with thisSpecification.

B. Submit complete operating and maintenance instructions for ail equipment included inthis Section in accordance with the provisions detailed in Section 01170.

1.06 OPERATING INSTRUCTIONSi

A. Operating and maintenance instructions shall be furnished in accordance withSection 01170 for all equipment included under this Section. The instructions shall beprepared specifically for this installation.

R3310909 11211-2 4R30559I

1.07 SPARE PARTS

A. All special tools recommended by the manufacturer required for normal operation andmaintenance of each piece of equipment shall be furnished.

8. All special tools shall be packed and identified in accordance with Section 01170.

C. Provide one (1) spare complete submersible pumping unit.

1.08 SHIPPING INSTRUCTIONS

A. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe equipment is ready for operation.

B. Factory assembled parts and components shall not be dismantled for shipment unlesspermission is received in writing from the Government Contracting Officer.

C. Finished iron or steel surfaces not painted shall be properly protected to prevent rustand corrosion.

PART 2 PRODUCTS

2.01 DESIGN DATA

A. The pumps shall be designed for the following conditions of service:

Liquid to be pumped

Number (not including spares)Design Capacity (gpm)TDH at Design Capacity (feet)Minimum Efficiency @ Design Capacity (%)Nominal Pump Diameter (inches)

Landfill GroundwaterExtraction Pumps

(P-1toP-5)

Contaminatedgroundwater

3110220

65

6

Ormrod GroundwaterExtraction Pumps(P-49 to P-51)

Contaminatedgroundwater

311030065

6

R3310909 11211-3 AR305592

B. Where total dynamic head (TDH) is referred to in this Section in conjunction with thespecific requirement, it shall be understood to consist of the sum of the static dischargehead plus the velocity head, in feet, at the discharge of the pump. The efficiency of thepump shall be understood to be based upon total dynamic head as just defined.

2.02 PUMP CONSTRUCTION

A. The pumping equipment shall be standard pumping equipment of proven ability forthe service intended of manufacturers regularly engaged in the production of this typeof equipment. The equipment furnished shall be designed, constructed, and installedin accordance with the best practice and methods. All materials and the completeinstallation of the pump shall comply with AWWA E101-77-B, Submersible Well Pumps,and with the specific requirements established herein. Pumps shall be of metal andteflon wetted parts construction only.

B. Materials of Construction:

1. 304Stainless-steel impeller2. 431 Stainless-steel pump shaft3. 304 Stainless-steel inlet screen4. 304Stainless-steel split cone5. 304Stainless-steel split cone nut6. 416 Stainless-steel coup)ing7. 304 Stainless-steel cable guard8. 304 Stainless-steel straps9. 304 Stai nless-steel priming inducers10. 304 Stainless-steel diffuser chamber

2.03 PUMP MOTORS

A. The pump motors shall be submersible type with a 1.15 service factor. Power cablefrom the pump motor to the wellhead terminal box shall be furnished by the pumpmanufacturer and shall be suitable for use in water contaminated with organic solvents(as shown on Drawing 0224-5D101). Pumps shall operate from a 460V, 3 phase, 60 Hzpower supply.

R3310909 11211-4 AR305593

PART 3 EXECUTION

3.01 INSTALLATION

A. The pumps and well head enclosure shall be installed as shown on the Drawings andaccording to the manufacturer's specifications. Pumps shall be installed at the depthsshown on the Contract Drawings.

3.02 INSPECTION AND TESTING

A. The Government Site Representative may require any and all tests of the equipmentwhich in his opinion may be necessary to demonstrate to his satisfaction that theequipment has been installed correctly and is in proper operating condition, and is freefrom defects or faults of any kind. Furnish all labor and incidentals required to conductsuch tests and to correct to the full satisfaction of the Government Site Representativeany and all defects or deficiencies noted.

B. A 3-day continuous operation period shall be required for each pump beforeacceptance.

END OF SECTION

R3310909

SECTION 11212CENTRIFUGAL PUMPS

P-4TO P-15, P-18, P-19, P-30 TO P-33, P-38, P-39, P-48

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to completely install,put in operation, and field test the horizontally mounted, constant speed, electricmotor-driven centrifugal pumps listed below as specified herein and shown on theDrawings.

<1. Two (2) Separator Influent Pumps (P-4, P-5)2. Two (2) Air Stripper Influent Pumps (P-6, P-7)3. Two (2) Air Stripper Transfer Pumps (P-8, P-9)4. Two (2) Bio-oxidation Tower Influent Pumps (P-10, P-11)5. Two (2) Filter Influent Pumps (P-12, P-13)6. Two(2) Final Effluent Transfer Pumps (P-14, P-15)7. Two (2) Potassium Permanganate Feed Pumps (P-18, P-19)8. Two (2) Filter Backwash Pumps (P-30, P-31)9. Two (2) Dirty Backwash Transfer Pumps (P-32, P-33)10. Two (2) Supernatant/Filtrate Recycle Pumps (P-38, P-39)11. One (1) Sulfuric Acid Backwash Supply Pump (P-48)

B. Each pump shall be designed to pump water with characteristics shown onDrawing 0224-5D101. In addition, the Bio-oxidation Tower Influent Pumps and the AirStripper Transfer Pumps shall be capable of operating once or twice a year for 4to8 hours with a 1 percent sulfuric acid solution, or a 1 percent hydrochloric solution, or a5 percent sodium hypochlorite solution for recirculation through the Air StripperSystems. The Sulfuric Acid Backwash Supply Pumps shall be capable of pumping96° Baume sulfuric acid.

C. For these units.there shall be furnished and installed all necessary accessory equipmentand auxiliaries, whether specifically mentioned in these Specifications or not, and as

R3310909 1121M AR305595

required for an installation incorporating the highest standards for the type of service,including field testing.

D. Power factor correction capacitors conforming to the requirements of Section 16150shall be furnished under this Section.


A. Concrete is included in Division 3.B. Painting is included in Division 9.C. Electrical work is included in Division 16.D. Piping is included in Division 15.E. Instrumentation is included in Division 13.

1.03 DESCRIPTION OF SYSTEMS

A. Each Separator Influent Pump, each Air Stripper Influent Pump, each Air StripperTransfer Pump, each Bio-oxidation Tower Influent Pump, each Filter Influent Pump,each Filter Backwash Pump, each Potassium Permanganate Feed Pump, each FinalEffluent Transfer Pump, and the Sulfuric Acid Backwash Supply Pump shall behorizontal end-suction, back pull-out, single-stage centrifugal, with bronze-enclosedimpeller.

B. Each Dirty Backwash Pump and each Supernatant/Filtrate Recycle Pump shall behorizontal end-suction, back pull-out, single-stage centrifugal pump with bronze,semi-enclosed impeller.

1.04 QUALIFICATIONS

A. The equipment covered by these Specifications shall be standard pumping equipmentof proven ability as manufactured by reputable concerns having extensive experiencein the production of such equipment. The equipment furnished shall be designed,constructed, and installed in accordance with the best.practice and methods, and shalloperate satisfactorily when installed as shown on the Drawings.

B. The centrifugal pumps shall be manufactured by Duriron or approved equal.

R3310909 11212-2 AR305596

1.05 SUBMITTALS

A. Submit for approval the following, in accordance with requirements of Section 01170.

1. Manufacturer's certified rating curves showing pump characteristics of discharge,head, capacity, brake horsepower, efficiency, guaranteed net positive suctionhead, and total pumping unit weight. This information shall be preparedspecifically for the pump proposed. Catalog sheets showing a family of curves willnot be acceptable.

2. Literature and drawings describing the equipment in sufficient detail, includingdimensions, parts list, and materials of construction, to indicate full conformancewith the detail Specifications.

3. Foundation, pump support, and anchor bolt plans and details.

4. Schematic electrical wiring diagram and other data as required for completepump installation.

5. Certified factory test data including performance curves of the proposed pumpfrom shut-off to maximum capacity, showing head, capacity, efficiency, B.H.P.,and guaranteed data on required NPSH.

6. Certified motor test.data as described in Paragraph 3.01.

1.06 OPERATING INSTRUCTIONS

A. Operating and maintenance instructions shall be furnished in accordance with theSection 01170 for all equipment included under this Section. The instructions shall beprepared specifically for this installation.

R3310909 11212-3 AR305597

1.07 SPARE PARTS AND TOOLS

A. Furnish one set of all special tools required for the proper servicing of all equipmentsupplied under these Specifications, packed in a suitable steel tool chest with a lock, inaccordance with the Section 01170.

B. Furnish the manufacturer's standard set of spare parts for each pump including at leastthe following:

1. Complete set of wearing rings.2. Two sets of mechanical seals for each pump gland.3. Com pi ete set of gaskets and "O" rings.4. One pair of pump and motor bearings.


A. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe unit and equipment are ready for operation.

B. All equipment and parts must be properly protected against any damage during aprolonged period at the site.

C. Factory assembled parts and components shall not be dismantled for shipment unlesspermission is received in writing from the Government Contracting Officer.

D. The finished surfaces of ail exposed flanges shall be protected by blank flanges,strongly built, and securely bolted thereto.

E. Finished iron or steel surfaces not painted shall be properly protected to prevent rustand corrosion.

F. For protection of bearings during shipment and installation, the bearings shall beproperly processed. Bearings, if prelubricated, shall be protected in accordance withthe bearing manufacturer's recommendations against formation of rust while awaitinginstallation. Bearings which are not prelubricated shall be properly treated inaccordance with the bearing manufacturer's recommendation against formation of

R3310909 "212-4 AR305598

rust while waiting installation and start-up by the application of rust preventivetreatment.

G. No shipment shall be made until factory test reports have been approved in writing bythe Government Contracting Officer.

1.09 REFERENCE STANDARDS

A. All pumps shall be manufactured in accordance with the Hydraulic Institute Standards.

PART 2: PRODUCTS

2.01 GENERAL

A. The centrifugal pumps shall all be supplied by one manufacturer and shall be completeincluding pumps and motors. The pump manufacturer shall be responsible for thefurnishing and performance of the complete pumping units.

B. All necessary foundation bolts, supporting plates, nuts, and washers shall be furnishedand shall be Type 316 stainless steel.

C. Brass or stainless-steel nameplates giving the name of the manufacturer, the ratedcapacity, head, speed, and all other pertinent data shall be attached to each pump andmotor.

R3310909 11212-5 AR305599

2.02 CONDITIONS OF OPERATION


Separator InfluentP-4, P-5Air StripperlnfluentP-6,P-7Air StripperTransfer P-8, P-9Bio-oxidationTower InfluentP-1 0, P-1 1Filter InfluentP-1 2, P-1 3

Speed(rpm)

1,770

1,770

1,770

1,770

1,770

DesignCapacity(gpm)

655

630

630

630

630

DesignHead,TDH(Feet)

40

70

70

35

55

MinimumEfficiencyat DesignCapacity(Percent)

65

65

65

65

65

MaximumHorsepowerOver Entire

Range(hp)

15

20

20

10

15

MaximumNPSH

Required(Feet)

0

0

0

0

0

LiquidTemp.

(°F)

55

55

55

55

55

Final EffluentTransfer P-14, P-1 5PotassiumPermanganateFeed P-1 8, P-1 9Filter BackwashP-30, P-31Dirty BackwashTransfer P-32, P-33Supernatant/Filtrate Recycle •P-38, P-39Sulfuric AcidBackwash SupplyP-4

Speed(rpm)

1,770

1,770

1,770

1,770

1,770

1,770

DesignCapacity(gpm)

630

10

630

50

50

10

DesignHead,TDH(Feet)

100

160

35

50

50

25

MinimumEfficiencyat DesignCapacity(Percent)

65

65

65

65

65

65

MaximumHorsepowerOver EntireRange(hp)

30

-3/4

15

3

1

1/2

MaximumNPSH

Required(Feet)

0

0

0

0

0

0

LiquidTemp.(°F)

55

55

68

68

68

Ambient

B. Pumps shall be designed to pump water with characteristics as shown for eachappropriate stream on Process Flow Diagram 0224-5D101. In addition, theBio-oxidation Tower Influent Pump and the Air Stripper Transfer Pump shall be capableof recirculating through the air stripper system either a 1 percent sulfuric acid, or a

R3310909 11212-6 AR305600

1 percent hydrochloric acid, or a 5 percent sodium hypochlorite solution for cleaningpurposes. Cleaning will occur once to twice a year for a period of 4 to 8 hours.

C. Where total dynamic head (TDH) is referred to above in conjunction with the specificdischarge requirements, it shall be understood to consist of the sum of the staticdischarge head plus the velocity head, in feet, at the discharge nozzle of the pumpminus the static suction head. The efficiency of the pump shall be understood to bebased upon total dynamic head as just defined.


A. Except as may be required per Section 2.02 B, all casings shall be of cast ironconforming to ASTM Designation A-48, Class 30, of sufficient thickness and suitablyribbed to withstand all stresses and strains of service at all operating pressures. FilterBackwash Pumps casings shall be of the volute type, split on the horizontal centerlinewith the suction and discharge nozzle cast integral with the lower half. Removal of theupper half of the casing shall allow the rotating element to be removed withoutdisconnecting the suction and discharge flanges. Stripper and Filter Influent and FinalEffluent Pumps.casings shall be designed to permit disassembly from the rear toremove pump internals without disconnecting suction and discharge piping. Thecasing shall be provided with tapped and plugged (removable) vent, drain, and gaugeconnections. Suction and discharge connections shall be 125 pound, ANSI Standard,flat-face flanges positioned as indicated on the Drawings.

B. Separator Influent, Air Stripper Influent, Air Stripper Transfer, Bio-oxidation TowerInfluent, Filter Influent, Final Effluent Transfer, Potassium Permanganate Feed, FilterBackwash, and the Sulfuric Acid Feed pump impellers shall be of the enclosed type andDirty Backwash Transfer Pump and Supernatant/Filtrate Recycle Pump impellers shallbe of the semi-enclosed type. Except as may be required per Section 2.02 B, impellermaterial of construction shall be cast tin bronze ASTMB143, Alloy 18 or 28, orASTM B145 alloy 4A bronze. Impeller shall be cast in one piece, and shall be staticallyand dynamically balanced. Rotation of the impeller shall correspond to the pumpdischarge orientation, as indicated on the Drawings. The impeller shall be keyed to theshaft and firmly held in place. The arrangement shall be such that the impeller cannotbe loosened by torque from either forward or reverse rotation.

R3310909 11212-7 A R 30 560 |

C. Removable wearing rings shall be provided for both the casing and the impeller on theDirty Backwash Pumps and the Supernatant/Filtrate Recycle Pumps and shall bedesigned for easy replacement. Wearing rings shall be made of bronze with the casingwearing ring of a lesser degree of hardness than that installed on the impeller.

D. All pump glands shall be furnished with mechanical seals. Seals shall be suitable for thespecified service conditions. Mechanical seals shall be 316stainless steel, with Teflonelastomers and carbon and ceramic seal faces. Seals shall be designed for use withoutan external source of cooling or flushing water.

E. Each pump shall be provided with both radial and thrust bearings of the anti-frictionball or roller type, of ample size to carry all loads imposed under continuous operationwithout overheating. The bearings shall be grease lubricated and a relief shall beprovided so that excessive grease pressure will not damage the bearings. Bearings shallbe designed and guaranteed to withstand runaway motor speed. Bearing frame shallbe designed so that the complete rotating element can be removed from casingwithout disconnecting piping. Bearing shall be designed for a minimum B-10 life of100,000 hours.

F. Except as may be required per Section 2.02 B, the bearing frames shall be of cast ironconstruction, shall be rigidly fixed to the casing, and shall be shoulder fitted andaccurately centered. The bearing frames for the Separator Influent, Air StripperInfluent, Air Stripper Transfer, Filter Influent, Bio-oxidation Tower Influent, PotassiumPermanganate Feed, Sulfuric Acid Backwash Supply, and Final Effluent Transfer Pumpsshall contain external provisions for the axial adjustment of the rotating element,when necessary, to provide clearance between the impeller and suction cover wearingrings over the life of the pump.

G. Except as may be required according to Section 2.02 8, pump shafts shall be of heattreated alloy steel, rigid-shaft type and of sufficient size to transmit the full driverhorsepower with a liberal safety factor, accurately machined over their entire lengthand free from harmful and damaging vibrations. The shafts shall be protected fromwear in the stuffing box areas by renewable bronze sleeves. The sleeves shall be sealedto prevent leakage between the sleeve and the shaft. Shrink-fit shaft sleeves will notbe acceptable.

R3310909 11212-8 AR3Q5602

H. Furnish and install tapped holes in the suction and discharge nozzles, 1/4-inch copperpipe nipples complete with "T"-handle cocks and pressure gauges. Nipples shall be ofsuch length and provided with elbows, if necessary, so that a pressure gauge may beeasily installed and read.

I. Each pump and motor shall be furnished with a common fabricated steel base platedesigned to adequately support both pump and driving motor. Couplings andcoupling guards shall be.installed between pump and electric motor. Pump couplingsshall be of the flexible spacer type to allow removal of the pump impeller withoutdisconnecting either motor leads or inlet and outlet piping.

j. Each pump shall be provided with a discharge pressure gauge conforming torequirements specified under Section 15100. The gauges shall be graduated from0 to 50 psig.

2.04 PUMP DRIVE MOTORS

A. Pump drive motors shall be TEFC, and shall conform to all requirements ofSection 16150. The pump motors shall be furnished by the pump manufacturer.

PARTS: EXECUTION

3.01 FACTORY INSPECTION AND TEST

A. Each pump shall be factory tested in accordance with the latest Hydraulic InstituteStandards. Each motor shall receive a standard factory test, including

1. High potential tests.2. No-load running current.3. Winding resistance.

B. Copies of certified test results shall be submitted to the Government ContractingOfficer for approval prior to shipment.

R3310909 11212-9 AR305603

3.02 INSTALLATION

A. The pumps shall be installed in accordance with the instructions of the manufacturerand as shown on the drawings.

B. All pumping units shall be installed on concrete bases and secured with anchor bolts inaccordance with the manufacturer's recommendations and as shown.

C. Neatly placed, 1-inch, hard copper pipe shall be provided on each pump to conveyleakage to nearest floor drain.

D. Support piping independent of pump.

E. Check and align all pumping units.

F. Field tests shall not be conducted until such time that the entire installation is completeand ready for testing.

3.03 FIELD TESTS

A. In the presence of the Government Site Representative, perform such tests as necessaryto demonstrate that the pumps conform to the specified requirements withoutvibration or overheating. A 3-day operating period of the pumps will be requiredbefore acceptance. If a pump performance does not meet the Specifications, correctivemeasures shall be taken or the pump shall be removed and replaced with a pump thatsatisfies the conditions specified.

3.04 PAINTING

A. Each pump and motor shall receive manufacturer's standard paint system at the shop.Field touch-up shall be provided as required.

END OF SECTION

R3310909 11212-10 AR305601*

SECTION 11213BUILDING SUMP PUMPS

P-42, P-43

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all materials, equipment, and incidentals required to install and field-test theelectric motor-driven submersible building sump pumps as specified herein.

B. For this unit there shall be furnished, and installed all necessary accessory equipmentand auxiliaries whether specifically mentioned in these Specifications or not, and asrequired for an installation incorporating the highest standards for the type of serviceincluding field testing.


A. Painting is included in Division 9.B. Piping is included in Division 15.C. Instrumentation and Controls are included in Division 13.D. Electrical work, except as herein specified, is included in Division 16.

1.03 EQUIPMENT APPLICATION

A. Submersible centrifugal pumps shall be used for pumping contaminated run-off watercollected in the building sump.

1.04 QUALIFICATIONS

A. The equipment covered by this Specification is intended to be standard pumpingequipment of proven ability as manufactured by reputable concerns having extensiveexperience in the production of such equipment. Equipment specified herein shall befurnished by a single manufacturer. The equipment furnished shall be designed,

R3310909 11213-1 AR305605

constructed, and installed in accordance with the best practice and methods, and shalloperate satisfactorily when installed as shown on the Drawings.

B. The building sump pumps shall be manufactured by Gould or an approved equal.

1.05 SUBMITTALS

A. Submit the following in conformance with the Section 01170.

1. Manufacturer's certified rating curves showing pump characteristics of dischargehead, capacity, brake horsepower, efficiency, and total pumping unit weight. Thisinformation shall be prepared specifically for the pump proposed. Catalog sheetsshowing a family of curves will not be acceptable.

2. Literature and drawings describing the equipment in sufficient detail, includingparts list and materials of construction, to indicate full conformance with thisSpecification.

B. Submit complete operating and maintenance instructions for all equipment included inthis Section in accordance with the provisions detailed in Section 01170.



1.07 SPARE PARTS

A. All special tools recommended by the manufacturer required for normal operation andmaintenance of each piece of equipment shall be furnished.

B. All special tools shall be packed and'identified in accordance with Section 01170.

C. Provide one (1) spare complete submersible pumping unit.

AR305606R3310909 11213-2


A. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe equipment is ready for operation.

B. Factory assembled parts and components shall not be dismantled for shipment unlesspermission is received in writing from the Government Contracting Officer.

i

C. Finished iron or steel surfaces not painted shall be properly protected to prevent rustand corrosion.

PART 2: PRODUCTS

2.01 DESIGN DATA


Condition

Liquid to be pumpedNumber

Design Capacity (gpm)TDH at Design Capacity (feet)

Downgradient ExtractionWell Pumps

Contaminated floor runoff water2

50

50

B. Where total dynamic head (TDH) is referred to in this Section in conjunction with thespecific requirement, it shall be understood to consist of the sum of the static dischargehead plus the velocity head, in feet, at the discharge of the pump. The efficiency of thepump shall be understood to be based upon total dynamic head as just defined.

R3310909 11213-3 3R305607


A. Impeller: Cast iron, semi-open, non clog with pump-out valves for mechanical sealprotection. Balanced for smooth operation.

B. Casing: Cast iron volute type for maximum efficiency. Two-inch NPT dischargeadaptable for slide rail system.

C. Mechanical Seal: Ceramic versus carbon sealing faces. Stainless-steel metal partsBUNA-N elastomers.

D. Shaft: Corrosion-resistant stainless steel. Threaded design. Locknut to guard againstcomponent damage on accidental reverse rotation.

2.03 PUMP MOTORS*

A. The pump motors shall be of the submersible type with a 1.15 service factor. Powercable from the pump motor to the wellhead terminal box shall be furnished by thepump manufacturer and shall be suitable for use in water contaminated with organicsolvents (as shown on Drawing 0224-5D101). Pumps shall operate from a 460V,3 phase, 60 Hz power supply.

PART 3: EXECUTION

3.01 INSTALLATION

A. The pumps shall be installed as shown on the drawings and according to themanufacturer's specifications.

R3310909 11213-4 SR305608

3.02 INSPECTION AN D TESTING

A. The Government Site Representative may require any and all tests of the equipmentwhich, in his opinion, may be necessary to demonstrate to his satisfaction that theequipment has been installed correctly and is in proper operating condition, and is freefrom defects or faults of any kind. Furnish all labor and incidentals required to conductsuch tests and to correct to the full satisfaction of the Government Site Representativeany and all defects or deficiencies noted.

B. A 3-day continuous operation period shall be required for each pump beforeacceptance.

END OF SECTION

R3310909 11213-5 AR305609

SECTION 11223VERTICAL SHAFT PROCESS MIXERS

M-1 TO M-6

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to install ready-for-operation vertical shaft process mixers as shown on the drawings and as specifiedherein.


A. Storage tanks are included in Section 13295.B. Field painting is included in Section 09902.C. Electric work is included in Division 16.

1.03 SYSTEM DESCRIPTION

A. The mixers will be suitable for the following conditions:

1. M1-lron Oxidation Mixer. This agitator will be installed in a tank 18feet indiameter by 21.5 feet straightside height, having a capacity of 38,000 gal Ions, withan inlet flow of 655 gpm for approximately 1 hour retention time. The incomingstream will contain 90 mg/L of iron and 40 mg/L of manganese, which need to beoxidized, requiring approximately 75cfm of air. There will be a total of about7,100 mg/L of suspended solids consisting mostly of iron hydroxide and manganeseoxide particles.

2. M2-Manoanese Oxidation Mixer. This agitator will be installed in a tank 8 feet indiameter by 10.5 feet straightside height, containing approximately 3,400 gallons.The purpose of the agitator will be to thoroughly blend an influent flow of655 gpm, containing about 7,100 mg/L of suspended iron hydroxide andmanganese oxide particles with 10 gpm of potassium permanganate solution.

11223-1 A R3 05610

3. M3-Sludqe Recycle Mixer. This mixer will be installed in a tank 2 feet in diameter by3.0 feet straightside, containing approximately 50 gallons. The purpose of theagitator will be to thoroughly mix a 20 gpm flow of 20 percent solids ironhydroxide and manganese oxide sludge with a 5.0 gph 50 percent caustic solutionstream.

4. M4-Neutralization Mixer. This agitator will be installed in a tank 8 feet in diameterby 10.5 feet straightside, containing 3,400 gallons. The purpose of the agitator willbe to thoroughly mix sulfuric acid and disperse it with clarified water, having atotal suspended solids of 30 mg/L.

5. M5-Dirtv Backwash Mixer. This agitator will be installed in a tank 12 feet indiameter by 15.5 feet straightside height, containing approximately 11,800 gallons.The purpose of this agitator is to keep the 1,800 mg/L of filter backwash solids insuspension.

6. M6-Biosubstrate Mixer. This agitator will be installed in a tank 5 feet in diameterby 6 feet straightside height, containing approximately 660 gallons. The purposeof the agitator will be to blend sugar with make-up water at a 12 percent solution.

7. M7-Supernatant/Filtrate Mixer. This agitator will be installed in a tank 4 feet i'ndiameter by 7.5 feet straightside height, containing approximately 550 gallons.The purpose of the agitator will be to blend the filtrate from the filter press andsupernatant from the thickener and keep a total of approximately 1,400 mg/Lsolids in suspension.

B. The mixing assemblies of all units shall be suitable for assembly within their respectivetanks.

R3310909 11223-2 3R3056II

1.04 SUBMITTALS

A. Submit to the Government Contracting Officer, as provided in Section01300, shopdrawings showing details of fabrication and erection of all materials and equipmentfurnished under this Section.

B. Operating and maintenance instructions shall be furnished to the Government ProjectManager as provided in Section 01170.

T

1.05 QUALITY ASSURANCE

A All equipment shall be of the highest quality throughout, designed for a long life oftrouble-free operation. All of the mixing equipment shall be furnished by a singlemanufacturer and guaranteed for process and mechanical performance by the originalequipment manufacturer.

8. The mixers shall be manufactured by Lightnin, or approved equal.

1.06 TOOLS AND SPARE PARTS

A. Special tools, if required for normal operation and maintenance, shall be furnishedwith the equipment in accordance with the requirements of Section 01170.

B. The following spare parts shall be furnished for each process mixer.

1. One complete set of seals.

2. One complete set of bearings.

C. See Section 01170 for additional requirements.



R3310909 11223-3 AR3056I2

PART 2: PRODUCTS

2.01 GENERAL

A. The equipment herein specified is intended to be standard mixing equipment ofproven ability, as manufactured by reputable concerns having experience in theproduction of such equipment. The equipment shall be designed, constructed, andinstalled in accordance with the best practice and methods, and shall operatesatisfactorily when installed as shown on the Drawings.

8. All parts shall be so designed and proportioned as to have liberal strength, stability,and stiffness and to be especially adapted for the work to be done. Ample room andfacilities shall be provided for inspection, repairs and adjustment.

C. The mixer manufacturer shall provide the motor and mixer and shall factory-mount themotor on the mixer.

2.02 DETAILS OF CONSTRUCTION

A. Each bearing incorporated within the reducer shall be of the anti-friction type having aminimum B-10 life of 100,000 hours, based on the latest AFBMA Standards, whenoperating continuously at the full-rated load motor horsepower and speed.

B. The fabrication and erection details shall permit accurate field erection of theequipment with a minimum of special tools and devices and shall permit readyinstallation within the tank as shown on the drawings.

C. The shaft seal shall be a stuffing box designated for 150 psig.

D. Structural members and connections shall be designed to withstand, within normalworking stresses and deflections, all loads imposed on them by rotation of theassembly at maximum design speeds in the solution and in the dry, and also loadswhich may be superimposed during or subsequent to erection while the tanks areempty.

E. Each mixer shall be driven'by an electrical motor with a TEFC enclosure. Motors shallconform to the requirements of Section 16150.

R3310909 11223-4 AR3056I3

PARTS: EXECUTION

3.01 INSTALLATION

A. Installation shall be in strict accordance with the manufacturer's recommendations.Type 316, stainless steel mounting bolts shall be set in accordance with certified printsfurnished by the manufacturer.

3.02 PAINTING

A. All iron and steel parts that are to be immersed in water shall be primed as specified inSection 09901. All drive units shall receive a shop primer coat and finish coat ofcompatible high-grade machinery enamel.


A. After all the equipment has been completely assembled, painted, and approved by themanufacturer's factory representative, and after approval by the Government SiteRepresentative, the equipment shall be placed in operation under the supervision ofthe manufacturer's factory representative.

B. The Government Site Representative may require any and all tests of the equipmentwhich in his opinion may be necessary to demonstrate to his satisfaction that theequipment has been installed correctly and is in proper operation condition, and is freejfrom defects of faults of any kind. The Contractor shall furnish all labor and incidentalsrequired to conduct such tests and to correct to the full satisfaction of the GovernmentSite Representative any and all defects or deficiencies noted.

C. A 3-day continuous operation period shall be required for each process mixer beforeacceptance. At the end of this period, the Contractor shall drain all oil from the gearbox and refill it with the proper grade of oil.

END OF SECTION

R3310909 1122?-5 AR3056 Ik

SECTION 11242POLYMER/DISPERSANT FEED SYSTEMS

PFS1.DFS1

PART1: GENERAL

1.01 SCOPE OF WORK '

A. Furnish ail labor, materials, equipment, and incidentals required, and install, ready foroperation, one polymer feed system and one dispersant feed system and allappurtenances necessary for the polymer and dispersant systems as specified hereinand/or shown on the drawings.


A. Piping, valves, and supports are included under respective sections of Division 15.B. Electrical work, except as hereinafter specified, is included in Division 16.

1.03 SUBMITTALS

A. Submit to the Government Contracting Officer, as provided in Section 01300, shopdrawings showing details of fabrication and erection of all materials and equipmentfurnished under this Section, including a complete master wiring diagram.

B. Operating and maintenance instructions shall be furnished to the GovernmentContracting Officer as provided in Section 01170.

1.04 DESCRIPTION OF SYSTEM

A. Two complete integrated systems shall be provided each including a chemical feeddiaphragm pump, rotameter, mixing chamber, and all control valving, regulators, andpressure gauges necessary for a complete system. Both systems shall be wall-mountedunits.

R3310909 11242-1 AR3056I5

B. One system shall feed chemical dispersant immediately ahead of the Primary AirStripper System, as shown on the drawings, at a neat dispersant feed rate of 0.1 to1.0 gallon per hour.

C. One system shall feed polymer prior to the filter press dewatering operation at a neatpolymer feed rate of .2 to 2 gallon per day.

1.05 QUALIFICATIONS

A. All the equipment specified under this Section shall be furnished by a singlemanufacturer and shall be products of a manufacturer regularly engaged in theproduction of such equipment. The manufacturer shall have the sole responsibility forthe proper functioning of the system furnished.

B. The Dispersant Feed System shall be Polyblend Model PB-200-1 as manufactured byStranco, Inc., or approved equal.

C. The Polymer Feed System shall be Polyblend Model PB-100-1 as manufactured byStranco, Inc., or approved equal.


A. Operation manuals covering instruction and maintenance sheets on each type ofequipment supplied shall ,be furnished to the Government Project Manager as providedin Section 01170.

1.07 EXTRA STOCK

A. Tools: One set of special tools for normal maintenance shall be furnished as required.

B. Spare Parts: Spare parts shall be furnished to assure normal running and maintenancefor a period of 1 year as recommended by the manufacturer of equipment under thisSection.

R3310909 11242-2 3R3Q56I6

PART 2: PRODUCTS

2.01 GENERAL

A. The following equipment specifications are intended to give a general description ofwhat is required but do not cover ail details, which may vary in accordance with theexact requirements of the equipment as offered.

B. These specification are intended to cover the furnishing, delivery, installation, fieldtesting, and field calibration of all materials and apparatus as required. Any additionalequipment necessary for the proper operation of the proposed installation notspecifically mentioned in these Specifications and/or shown on the drawings shall befurnished and installed.

2.02 POLYMER/DISPERSANT FEED SYSTEM

A. The Polymer and Dispersant Feed Systems shall be provided as follows:

1. The cabinet shall be constructed of polyester reinforced with Fiberglass.

2. The mixing chambers shall consist of a clear acrylic barrel with PVC end capsenclosing a stainless-steel impeller mounted on a stainless-steel shaft with double-sealed ball bearings. Mechanical seals shall be ceramic/formulite with buna-N0-rings.

3. The mixing motors shall be 1/6-H.P. TEFC split-phase, nonsynchronous, continuousduty and will operate at 1,700 rpm.

4. The makeup water inlet shall be 1/2-inch FNPT. The polymer/dispersant inlet shallbe a 5/8-inch O.D. barbed connection. The discharge part shall be 1/2-inch FNPT.

5. The water inlet solenoid valve shall be controlled by an electrical supply circuit.Water flow to the mixing chamber shall be regulated by a rate adjusting valve(flowmeter) with guided float. The mixer motor and metering pumps shall becontrolled by an "On-Off switch. Stroke frequency is regulated with a 10-turnpotentiometer, and displayed in strokes per minute or strokes per hour on a 1-inchLCD readout. A flow sensor will place the metering pump on standby when water

R3310909 11242-3 AR3056I7

flow is interrupted. Full function shall be restored automatically when flow isrestored.

PARTS: EXECUTION

3.01 INSTALLATION

A. The polymer system and dispersant systems and accessory equipment shall be installedin accordance with the manufacturer's instructions and located, as shown on thedrawings. Installation shall include furnishing the required oil and grease for initialoperation. Lubrication, if required, shall be in accordance with the recommendation ofthe manufacturer. Anchor bolts shall be set in accordance with the shop drawings.Local electrical shutoffs for power supplied to field equipment shall be provided.

3.02 MANUFACTURER'S SERVICE

A. The following shall be done by a qualified serviceman of the equipment manufacturer.

1. Supervision: Checking the installation of all components before power is applied.

2. Check Out: Placing the equipment into operation, field calibration, and makingnecessary adjustments. Field calibration of each chemical feeder pump shallinclude graphing of pump capacity curves for 100, 75, 50, 25, 10 percent strokeadjustment. Additional curves shall be developed for 100, 75, 50, 25 percent motorspeed (total of 20 curves).

3.03 PAINTING

A. Shop priming and surface preparation shall be as specified in Section 09901 and isincluded in this Section (for .those items not furnished with a factory finish enamelpaint).

R3310909 11242-4 AR3056I8

3.04 TESTING

A. Field Tests

1. Supply one 55-gallon drum of polymer and one 55-gallon drum of dispersant of thetype directed by the Government Field Representation to be used in conjunctionwith the testing and calibrating of the feed systems.

2. After all feed systems have been completely installed, such tests as are necessary toindicate that discharge conforms to the Specifications shall be conducted in thepresence of the Government Field Representative.

3. After the plant is in operation, a 1-day full-load operating test shall be performedin the presence of the Government Field Representative by a qualifiedmanufacturer's representative on the complete polymer makeup system and thedispersant feed system. All labor, materials and equipment required for such testsand correction of any deficiencies noted by repairing or replacing the defectivecomponent and retesting as required shall be furnished until the equipment meetsthe satisfaction of the Government Field Representative.

END OF SECTION

R3310909 11242-5 AR3056I9

SECTION 11243POTASSIUM PERMANGANATE FEED SYSTEM

PPFS-1

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required, and install, ready foroperation, one permangante feed system and all appurtenances necessary for thesystem as specified herein and/or shown on the Drawings.


A. Piping, valves, and supports are included under respective sections of Division 15.B. Electrical work, except as hereinafter specified, is included in Division 16.C. Centrifugal pumps are included in Section 11212.

1.03 SUBMITTALS

A. Submit to the Government Contracting Officer, as provided in Section 01300, shopdrawings showing details of fabrication and erection of all materials and equipmentfurnished under this Section, including a complete master wiring diagram.

B. Operating and maintenance instructions shall be furnished to the Government ProjectManager as provided in Section 01170.

R3310909 11243-1 AR305620


A. The integrated system shall consist of three(3) 2,000 pound steel containers ofpotassium permanganate. These containers shall be returned to the potassiumpermanganate supplier to be refilled once the contents of the containers is depleted.

B. The potassium permanganate container shall manually feed a potassiumpermanganate feeder, consisting of an extension hopper, a helix screw feeder, and avortex mixer eductor.

C. The system shall have the capacity to feed a maximum of 560 pounds of potassiumpermanganate per day in a 2 percent solution.

1.05 QUALIFICATIONS

A. All the equipment specified under this Section shall be furnished by a singlemanufacturer and shall be products of a manufacturer regularly engaged in theproduction of such equipment. The manufacturer shall have the sole responsibility forthe proper functioning of the system furnished.

B. The potassium permanganate feed system shall be as manufactured by BIF, orapproved equal.


A. Operation manuals covering instruction and maintenance sheets on each type ofequipment supplied shall be furnished to the Government Contracting Officer asprovided in Section 01170.

1.07 EXTRA STOCK

A. Tools: One set of special tools for normal maintenance shall be furnished as required.

B. Spare Parts: Spare parts shall be furnished to assure normal running and maintenancefor a period of one year as recommended by the manufacturer of equipment under thisSection.

R3310909 11243-2 ' AR30562I

PART 2: PRODUCTS

2.01 GENERAL

A. The following equipment specifications are intended to give a general description ofwhat is required but do not cover all details, which may vary in accordance with theexact requirements of the equipment as offered.

B. These specifications are intended to cover the furnishing, delivery, installation, fieldtesting, and field calibration of all materials and apparatus as required. Any additionalequipment necessary for the proper operation of the proposed installation notspecifically mentioned in these Specifications and/or shown on the Drawings shall befurnished and installed.

2.02 POTASSIUM PERMANGANATE FEED SYSTEM

A. The potassium permanganate feeder shall be provided as follows:

1. The side frames shall be constructed of welded steel with a polyurethane finish.

2. The vortex mixer shall consist of a cast iron body. The water supply pressure shallbe 70 psig and the maximum pressure loss at 6.6 gpm shall be 19.5 psig.

3. The helix screw shall be 304 stainless steel and shall be capable of feeding560 pounds of potassium permanganate per a 24-hour day in a 2 percent solution.

4. The makeup water inlet and discharge outlet shall be 3/8 male NPT to the vortexmixer.

5. The 2,000 pound potassium permanganate container shall be designed for easyloading and unloading with standard fork lifts.

R3310909 11243-3 AR305622

PART 3: EXECUTION

3.01 INSTALLATION

A. The potassium permanganate feed system and accessory equipment shall be installedin accordance with the manufacturer's instructions and located as shown on theDrawings. Installation shall include furnishing the required lubricants for initialoperation. All lubricants shall be inorganic to reduce the risk of fires. Anchor boltsshall be set in accordance with the shop drawings. Local electrical shutoffs for powersupplied to field equipment shall be provided.


A. The following shall be done by a qualified serviceman of the equipment manufacturer.

1. Supervision: Checking the installation of ail components before power is applied.

2. Check Out: Placing the equipment into operation, field calibration, and makingnecessary adjustments.

3.03 PAINTING

A. Shop priming and surface preparation shall be as specified in Section 09901 and isincluded in this Section (for those items not furnished with a factory finish enamelpaint).

3.04 TESTING

A. Field Tests

1. Supply 200 pounds of potassium permanganate to be used in conjunction with thetesting and calibrating of the feed systems.

2. After all feed systems have been completely installed, such tests as are necessary toindicate that discharge conforms to the Specifications and shall be conducted in thepresence of the Government Field Representative.

R3310909 11243-4 AR305623

3. After the plant is in operation, a 1-day full-load operating test shall be performedin the presence of the Government Field Representative by a qualifiedmanufacturer's representative on the complete potassium permanganate feedsystem. All labor, materials and equipment required for such tests and correctionof any deficiencies noted by repairing or replacing the defective component andretesting as required shall be furnished until the equipment meets the satisfactionof the Government Field Representative.

END OF SECTION

R3310909 11243-5 AR30562U

SECTION 11245CHEMICAL FEED PUMPS

P-16, P-17, P-20 to P-29, P-46, P-47

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required, and install, ready foroperation, chemical feed pumps, backpressure valves, pressure relief valves, gauges,and all appurtenances necessary for the chemical feed systems, as specified hereinand/or shown on the Drawings.

B. The following pumps shall be supplied under this specification:

1. Two(2) Caustic Feed Pumps (P-16, P-17)2. Two(2) Sulfuric Acid Feed Pumps (P-20, P-21)3. Two(2) Ammonia Feed Pumps (P-22, P-23)4. Two(2) Phosphoric Acid Feed Pumps (P-24, P-25)5. Two(2) Biosubstrate Feed Pumps (P-26, P-27)6. One (1) Biofeeder Pump (P-28)7. One (l)Bioculture Pump (P-29)8. Two(2) Fuel Feed Pumps (P-46, P-47)


A. Field painting is included in Section 09902.B. Chemical storage and day tanks are included in Section 13295.C. Piping, valves, and supports are included under respective Sections of Division 15.D. Electrical work, except as hereinafter specified, is included in Division 16.E. Electric motors, except as hereinafter specified, is included in Section 16150.

R3310909 11245-1 AR305625

1.03 SUBMITTALS

A. Submit to the Government Project Manager as provided in Section 01300, shopdrawings showing details of fabrication and erection of all materials and equipmentfurnished under this section.


A. The pumps shall all be constructed of materials suitable for pumping the liquidsdescribed and shall meet the following design and performance criteria:

CAUSTIC FEED PUMPS (P16,17)

TypeNumber of UnitsCapacityDischarge PressureMotorHorsepowerLiquid to be Pumped

hydraulic diaphragm24gphto20gph40ftvariable speed1/3 hp50% caustic

SULFURIC ACID FEED PUMPS (P20, 21)

TypeNumber of UnitsCapacityDischarge Pressure ,MotorHorsepowerLiquid to be Pumped

hydraulic diaphragm20.4gphto2.0gph25ftvariable speed1/3 hp66° baume sulfuric acid

AMMONIA FEED PUMPS (P-22, P-23)TypeNumber of UnitsCapacityDischarge PressureMotorHorsepowerLiquid to be Pumped

hydraulic diaphragm20.3gphto 1.5gph35ftmanually adjustable stroke1/3 hp29% ammonia

R3310909 11245-2 AR30S626

PHOSPHORIC ACID FEED PUMP (P-24, P-25)


hydraulic diaphragm20.02 gph to 0.1 gph35ftmanually adjustable stroke1/3 hp75% phosphoric acid

BIOSUBSTRATE FEED PUMPS (P-26, P-27)


hydraulic diaphragm23 gph to 15 gph40ftmanually adjustable stroke1/2 hp12% sugar solution

BIOFEEDERPUMP(P-28)


hydraulic diaphragm110 gph to 50 gph30ftmanually adjustable stroke1/2 hpBiosolids

BIOCULTURE PUMP (P-29)TypeNumber of UnitsCapacityDischarge PressureMotorHorsepowerLiquid to be Pumped

hydraulic diaphragm10.5 gph to 2.5 gph10ftmanually adjustable stroke1/2 hpLiquid Bioculture

R3310909 11245-3 AR305627

FUEL FEED PUMPS (P-46, P-42)TypeNumber of UnitsCapacityDischarge PressureMotorHorsepowerLiquid to be Pumped

hydraulic diaphragm25 gph to 30 gph40ftvariable speed1/2 hpNo. 2 fuel oil

C. The sulfuric acid feed pumps and caustic feed pumps shall be paced by a 4-20 mAsignal. Signal converters shall be provided to ensure compatibility with pacing signalsbeing provided under Section 13600.

1.05 QUALIFICATIONS

A. All the equipment specified under this Section shall be furnished by a singlemanufacturer and shall be products of a manufacturer regularly engaged in theproduction of such equipment.

B. The chemical feed pumps shall be manufactured by Durco or an approved equal.


A. Operating and maintenance instructions shall be furnished in accordance withSection 01170 for all equipment included in this Section. The instructions shall beprepared specifically for this installation.

B. Factory representatives who have complete knowledge of proper operation andmaintenance of the equipment shall be provided for a total of two 8-hour days toinstruct representatives of the Government on proper operation and maintenance,startup, shutdown, lubrication, troubleshooting, and safety of the equipment.

R3310909 H245-4 AR305628

1.07 EXTRA STOCK

A. Tools: One set of special tools for normal operation and maintenance shall befurnished. They shall be supplied in accordance with the provisions identified underSection 01170.

B. Spare Parts: Spare parts shall be furnished as recommended by the manufacturer ofequipment under this Section. As a minimum, the following list shall be provided foreach pump:

1. One (1) set of check valves2. One (1) set of diaphragms3. One (1) preventive maintenance kit

PART 2: PRODUCTS

2.01 GENERAL

A. The following equipment specifications are intended to give a general description ofwhat is required, but do not cover all details, which may vary in accordance with theexact requirements of the equipment as offered. They are, however, intended to coverthe furnishing, delivery, installation, field testing, and field calibration of all materialsand apparatus as required. Any additional equipment necessary for the properoperation of the proposed installation not specifically mentioned in theseSpecifications and/or shown on the drawings shall be furnished and installed.

B. The drawings and specifications are based on a particular arrangement of equipmentand piping; should the Contractor propose to furnish equipment otherwise acceptableto the Government Project Manager, the Contractor shall be responsible for allrevisions necessary to incorporate the proposed equipment into the design. TheContractor shall prepare detailed drawings of all revisions to all effected Architectural,Structural, Mechanical, Instrumentation, HVAC, and Plumbing drawings embodyingthe proposed alternative equipment, for the review and approval of the GovernmentProject Manager.

R3310909 11245-s AR305629

2.02 CHEMICAL FEED PUMPS

A. The pumps shall be positive displacement, hydraulically actuated, diaphragm type.Pumps shall consist of a reciprocating plunger, alternately compressing and relievingpressure on hydraulic fluid, which in turn squeezes or compresses a flexible elastomerdiaphragm to displace a measured quantity of chemical from the metering chamber.Maximum stroke speed shall not exceed 100spm. Double-ball-type check valves shallbe provided on the suction and discharge, including a reversible seat and replaceableball guide. The hydraulic reservoir and gear reduction lubrication system shall betotally separate. The hydraulic system shall be positively vented on each stroke of thepump, and no internal adjustable valves shall.be required. The pump shall be dry-liftself-priming and capable of indefinite operation without process fluid. A manualmicrometer type adjustment mechanism, to permit Oto 100 percent capacity controlwhile in motion, on each shall provide positive repeatable settings within plus or minus1 percent over the entire range; pump delivery shall be repeatable within plus or minus1 percent accuracy over 25:1 range.

B. The chemical feed pumps shall be provided with the following. All the equipment shallbe suitably constructed for the liquids that will be pumped as described earlier.

1. For each discharge line, as shown on the Drawings, a back pressure valve of thesize, material, and pressure setting as recommended by the pump manufacturer.Back pressures shall be field adjustable.

2. For the discharge line, as shown on the Drawings, a pulsation dampener of suitablesize, material and pressure rating as recommended by the pump manufacturer.Pulsation dampeners shall be of the air-charged, single- or double-diaphragm type

»

and shall be provided with an air charging valve and a pressure gauge located inthe air chamber.

3. Pressure relief valve, sized as recommended by the pump manufacturer, as shownon the drawings. The valves shall be polyvinylidene fluoride (PVDF) with teflonshafts and resilient set of filled teflon or equal material. The pressure setting of thevalves shall be fully adjustable using an external adjusting screw.

C. Pump motors for the sulfuric acid feed pumps, the caustic feed pumps, and the fuelfeed pumps shall be variable-speed, direct-current-driven through enclosed gear

R3310909 11245-6 AR305630

reduction units. Motors shall not overheat excessively when operated over longperiods of time at 10 percent speed and constant torque load. Gear reduction shall beoil immersed, helical type running on anti-friction bearings. Each variable-speed driveshall be an integrally mounted, direct current motor operated from a locally mounted,DC drive controller, hereinafter specified. Motors shall be standard, totally enclosed,non-ventilated DC units and of the frame size selected by the manufacturer to preventoverheating when continuously operated at low speeds. Drives shall be suitable forcontinuous operation over a 20:1 speed range within plus or minus 2 percent ofselected operating speed. Each pump and drive, including coupling and guard, shall befactory-mounted on a common base and tested. A thermal switch shall be furnished ineach drive motor to stop the motor on a high winding temperature.

D. A DC drive controller shall be provided for each sulfuric acid feed pump and causticfeed pump, and shall be a completely solid state unit consisting of an electric switchingamplifier, full-wave rectifier and associate circuitry. Bridge and gate trigger circuitryshall employ printed circuit boards with plug-in modules. Circuit design shall provideconstant torque output, and shall be heavy-duty type to handle full current rating ofmotor and brief acceleration currents. The DC drive controller unit circuitry shall bestable over an ambient operating temperature range from 50°F to 104°F. The unit shallbe fused. DC drive controller units installed in the control panel as hereinafterspecified shall be of the open type. The controller shall be furnished with a tachometerfeedback system, control power transformer, power disconnect switch, and electricallyoperated contactors for motor switching. Controllers shall have provisions foraccepting a remote dry contact start/stop command and a remote 4-20milliamp DCspeed control signal as specified under Section 13600. Contactors shall be furnishedwith one (1) normally open and one (1) normally closed auxiliary dry contact for remotestatus indication. Signal isolating and impedance matching transducer shall befurnished for mounting and wiring in the sulfuric acid control panel under this Section,as hereinafter specified. Power supply to the DC drive controller shall be 120 volt,single phase, 60 hertz.

E. All other electric motors shall be as specified in Section 16150.

R3310909 11245-7 AR30563I

PARTS: EXECUTION

3.01 INSTALLATION

A. The chemical feed pumps and accessory equipment shall be installed in accordancewith the manufacturer's instruction and located as shown on the Drawings.

B. On each pump suction line, provide a steel flushing connection complete with ballvalve arranged so that each pump can be manually flushed on pump shut down.


A. The following shall be performed by a qualified service person.


2. Check Out: Placing the equipment into operation, field calibration, and makingnecessary adjustments. Field calibration of the chemical feeder pump shall includegraphing of pump capacity curves for 100, 75, 50, 25, 10 percent stroke adjustment.Additional curves shall be developed for 100, 75, 50, 25 percent motor speed (totalof 20 curves) where variable speed motors are specified. The curves shall besubmitted to the Government Site Representative for review.

3.03 PAINTING

A. Shop priming and surface preparation shall be as specified in Section 09901 and isincluded in this Section (for those items not furnished with a factory finish enamelpaint).

R3310909 11245-8 AR305632

3.04 TESTING

A. Field Tests

1. After the pumps is been completed checked out as described above, such tests asj

are necessary to indicate that pump discharge conforms to the Specifications shallbe conducted in the presence of the Government Site Representative.

2. Tests are to be conducted to the point of discharge at selected stroke and speedsand to conform the repeatability of settings. The Contractor shall supply allchemicals necessary for testing.

END OF SECTION

R3310909 11245-9 AR305633

SECTION 11313

AIR-OPERATED DIAPHRAGM PUMPSP-34 to P-37, P-40, P-41, P-44, P-45

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish and install air-operated, double-diaphragm pumps. The pumps will becomplete with all required accessories and appurtenances necessary to make theequipment, operable, as specified herein and as shown on the Drawings.

The following pumps shall be supplied under this specification:

1. Two (2) Separator Underflow Pumps (P-34, P-35)2. Two (2) Filter Press Feed Pumps (P-36, P-37)3. Two (2) Free Product Transfer Pumps (P-40,P-41)4. Two(2) Downgradient Sludge Unloading Pumps (P-44, P-45)

B. Furnish one compressed air moisture separator/pressure regulator/oiler assembly foreach pump.


A. Instrument and Service Air System is included in Section 11372.

B. Mechanical piping, valves, pipe hangers, and supports are included in the respectivesections of Division 15.

C. Concrete work (including concrete pump pedestals) is included in Division 3.

R3310909 11313-1 &R3056314

1.03 SUBMITTALS

A. Shop drawings showing installation details and dimensions shall be submitted inaccordance with Section 01300.

B. All the requirements of Section 01170.


The air-operated diaphragm pumps required are as follows:

Pump

Separator UnderflowPumps (P-34, P-35)

Filter Press Feed Pumps(P-36, P-37)

Free Product TransferPumps (P-40,P-41)Downgradient SludgeUnloading Pumps(P-44, P-45)

Material to bePumped

Metal HydroxideSludgeConcentratedSludge (11%) fromGravity Thickener

DNPL

Sand FilterBackwash Solids

DesignDischarge

20 gpm

70 gpm

30 gpm

30 gpm

DesignDischargeHead

100ftH2O

230 ft H2O

50 ft H20

50ftH2O

Air Requirement

20 SCFM @ 70 psig

70SCFM@100psig

20 SCFM @ 40 psig

20 SCFM @ 40 psig

1.05 QUALIFICATIONS

A. The pumps and accessories will be supplied by a single manufacturer, who is fullyexperienced, reputable and qualified in the manufacture of the equipment to besupplied. The equipment furnished shall be designed and constructed in accordancewith the best practices and methods and shall generate as specified when installed asshown as the drawings.

B. The air diaphragm pumps shall be manufactured by Wiiden or approved equal.

R3310909 11313-2


A. Operating and maintenance instructions shall be furnished in accordance withSection 01170 for all equipment included under this section. The instructions shall beprepared specifically for this installation.

1.07 SPARE PARTS

A. All special tools recommended by the manufacturer in the manufacturer's operationand maintenance manual required for normal operation and maintenance of eachpiece of equipment shall be furnished.

B. All special tools shall be packed and identified in accordance with Section 01170.

PART 2: PRODUCTS

2.01 MATERIALS AND EQUIPMENT

A. GENERAL

1. All of the equipment specified herein shall be designed and proportioned to haveliberal strength and stiffness and shall be especially adapted to the particularfunction specified. All equipment shall be suitable for continuous operation.

2. All pumps shall have cast iron wetted parts and cast-iron/bronze non-wettedparts.

B. PUMP FEATURES AND ACCESSORIES

1. Pumps shall be designed for 125-psig maximum air supply pressure.

2. Diaphragms, check valves, and seats shall be constructed of viton for all pumpsexcept for the Free Product Transfer Pumps (P40, 41) which shall be teflon.Pumping rate shall be controlled by an externally serviceable air valve.

3. Pumps shall be capable of passing solids up to 1/8 inch in size.

11313-3 AR305636

4. Pump casings including inlet and discharge headers shall be of uniform qualityand free from blowholes, porosity, hard spots, shrinkage, defects, cracks, andother injurious defects. Casings shall be designed to withstand a hydrostatic testpressure of not less than 1-1/2 times the maximum head developed when suppliedwith 125 psig of air.

5. Mechanical properties and diameter of the shaft shall ensure that neitherdeflection nor vibration shall be of sufficient magnitude to impose greater thanthe design load on the shaft when operating at the pumps' maximum capabilitywith 125 psig of air. Shaft shall be accurately machined its full length to reducefriction and ensure reliable operation.

6. Bearings shall be sleeve-type, oil-lubricated, and completely isolated from theprocess fluid.

7. Pulsation dampers shall be supplied and mounted on the discharge of each pump.The pulsation damper shall reduce pressure surges and shall maintain flow and auniform pressure. The materials shall be compatible with the specified service.The Contractor shall provide and install any air lines or accessories that may berequired for air charging of the chamber and maintaining the charge.

8. The noise level produced by the equipment operating as specified shall notexceed 85dBA overall sound pressure level (reference 20 micro-Pascals) at adistance of 5 feet from the equipment surfaces.

9. Compressed air moisture separator/pressure regulator/oiler assemblies shall beprovided and installed as shown on the drawings. The assemblies shall be suitedfor the service conditions and pumps supplied. The connections shall be NPT tosuit air-line sizes.

R3310909 11313-4 AR305637

PART 3: EXECUTION

3.01 DELIVERY AND STORAGE

A. All equipment shall be crated and delivered to protect against damage duringshipment.

B. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe units and equipment are ready for operation. Finished iron or steel surfaces notpainted shall be properly protected to prevent rust and corrosion.

C. Factory-assembled parts and components shall not be dismantled for shipment unlesspermission is received in writing from the Government Contracting Officer.

<

3.02 INSTALLATION

A. Installation of pumps shall be in strict accordance with manufacturer's instructions andrecommendations in the locations shown on the drawings. Installation shall includefurnishing the required lubricants for initial operation. The grades of oil and greaseshall be in accordance with the manufacturer's recommendations.


A. After all the equipment has been completely assembled and approved by themanufacturer's factory representative, and after approval by the GovernmentContracting Officer, the equipment shall be placed in operation under the supervisionof the manufacturer's factory representative.

R3310909 11313-5 AR305638

B. The Government Site Representative may require any and all tests of the equipmentwhich in his opinion may be necessary to demonstrate to his satisfaction that theequipment has beeh installed correctly and is in proper operating condition, and is freefrom defects or faults of any kind. The Contractor shall furnish all labor and incidentalsrequired to conduct such tests and to correct, to the full satisfaction of the GovernmentSite Representative any and all defects or deficiencies noted.

C. A 3-day continuous operation period shall be required for each pump beforeacceptance

END OF SECTION

R3310909 flft305639

SECTION 11340DEEP BED PRESSURE FILTERS

DBF-1, DBF-2

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish ail labor, materials, equipment and incidentals required to provide the DeepBed Pressure Filters as specified herein and as shown on the drawings. This shallinclude two single media filters, filter media, valves, control system, and allcomponents and accessories for completely operational units.


A. Painting is included in Division 9.B Positive Displacement air blowers are included in Section 11371.C. Centrifugal pumpsare included in Section 11212.D. Instrumentation air compressors are included insertion 11372.E. Instrumentation and controls are included in Section 13325.

1.03 SYSTEM DESCRIPTION

A. The Deep Bed Pressure Filters shall be designed to remove suspended solids from thebio-oxidation tower effluent and to protect the Granular Activated Carbon AdsorptionSystem from frequent fouling. Two fixed-bed, single media filters shall be provided.The filter media shall be specially graded silica sand. Influent suspended solidsconcentration is expected to average 30 mg/L. Effluent suspended solids are requiredto be 5 mg/L or less.

1.04 QUALIFICATION

A. All of the equipment furnished under this section shall be supplied by a singlemanufacturer who is fully experienced, reputable, and qualified in the manufacture of

R3310909 11340-1 AR3056**Q

the system components to be furnished. The equipment shall be designed,constructed, and delivered in accordance with best practices and methods.

B. The Deep Bed Pressure Filters shall be as manufactured by Tetra Technology orapproved equal.

1.05 SUBMITTALS

A. Submit copies of the following per the requirements of Section 01170 to theGovernment Contracting Officer for approval:

1. Literature and shop drawings describing the equipment and showing allimportant details, materials of construction, and dimensions. Pressure dropthrough the system at the maximum process flow rate and during backwashingshall be indicated.

2. System engineering flow diagram (P&ID) or complete piping layout showing allthe sizes, valving and connections.

3. Complete wiring diagrams and schematics of all control panels and controldevices furnished under this section.

4. Documentation of the manufacturer's ability to design and supply effective deepbed filters, including description of at least three existing filtrations installationsfor similar applications, with references who may be contacted to verifyperformance.

5. All the requirements of the Section 01170.


A. Operating and maintenance instruction shall be furnished in accordance with theSection 01170 for all equipment included under this Section. The instructions shall beprepared specifically for this installation.

B. Factory representatives who have complete knowledge of proper operations andmaintenance of the equipment shall be provided for a total of three 8-hour days to

R3 310909 1134°-2 AR3Q561*

instruct representatives of the Government on proper operations and maintenance,startup, shutdown, troubleshooting, and safety of the equipment.


A. All special tools required for normal operation and maintenance shall be furnishedwith the equipment.

B. Spare parts shall be furnished as recommended by the manufacturer of the equipmentin the manufacturer's operation and maintenance manual.

C. All tools and spare parts shall be packed in containers which are clearly identified as totheir contents. All items shall be suitably packed and protected for long periods ofstorage in accordance with the Special Provisions Section.

4

1.08 EQUAL PRODUCTS , .

A. The drawings and specifications are based on a particular arrangement of equipmentand piping. Should the Contractor propose to furnish other equipment, the Contractorshall be responsible for ail revisions necessary to incorporate the proposed equipmentinto the design. The Contractor shall prepare detailed drawings of all revisions to allaffected architectural, structural, mechanical, instrumentation, HVAC, and plumbingdrawings embodying the proposed equipment, for the review and approval of theGovernment Project Manager.

PART 2: PRODUCTS

2.01 GENERAL

A. These specifications are intended to give a general description of what is required butdo not cover all details, which may vary in accordance with the exact specifications ofthe equipment as offered. They are, however, intended to cover the furnishing,delivery, installation, and field testing of all materials and equipment and apparatus asrequired. Any additional auxiliary equipment necessary for the proper operation ofthe proposed installation not mentioned in these specifications, or shown on thedrawings, shall, be furnished and installed.

R3310909 11340-3

B. The equipment covered by these specifications is intended to be standard equipmentof proven capability and as manufactured by reputable concerns having experience inthe production of such equipment. The equipment furnished shall be designed,constructed, and installed in accordance with best practice and methods and shalloperate satisfactorily when installed as shown on the Drawings.

C. All equipment components shall be furnished with all internal wiring, valving, andcontrol devices necessary for system operation.

D. All equipment shall be designed and proportioned to have liberal strength, stability,and stiffness and to be especially adapted for the intended service.

E. Equipment bases shall be rigidly and accurately anchored into position, and necessaryfoundation bolts, plates, nuts, and washers shall be provided by the system supplier forinstallation by the Contractor. All fastening equipment shall be 316 stainless steel. Itshall be the responsibility of the equipment manufacturer to determine the number,size, and location of all anchor bolts to be set in concrete.

F. Brass or stainless-steel namepiates giving the name of the manufacturer, modelnumber, rated capacity, and other pertinent data shall be attached to each unit.

2.02 PRESSURE FILTRATION SYSTEM

A. Design of the pressure filtration system shall be based on the following parameters:Those parameters involved with an (*) have been tentatively identified for meeting therequired performance and must be verified by the equipment supplier.

Operating TimeTypeMode of OperationNumberDiameterShell Height-Straight SideDesign PressureTest PressureMinimum Flow/UnitMaximum Flow/Unit

ContinuousDeep Bed single mediaAutomaticTwo10 feet10 feet

(*)(*)

•35 psig53 psig200 gpm650 gpm

R3310909 11340-4

Air Scour Flow/UnitAir Scour PressureAir Scour TimeBackwash Flow/UnitMaximum Pressure Drop During BackwashFilter MediaFilter Media Depth - TotalSupport Bed DepthFreeboardPressure Drop/Unit at 330 gpm (Clean)Pressure Drop/Unit at 330 gpm (Dirty)

400 icfm

6 psig15 minutes475/630 gpm

4 psig

(*)(*)

.(*)(*)(*)

Silica Sand

5 feet18 inches in 5 layers

(*)(*)

40%3 psig10 psig

(*)(*)

B. Single media filters, valves, and controls shall be designed to operate as follows:

1. Under normal condition, both filters will operate in parallel. When one filterrequires backwashing the other will process the entire flow.

2. All necessary valve settings on influent, effluent, and interconnecting piping shallbe accomplished automatically.

3. The operator may elect to backwash either filter at any time or may elect to havebackwashing initiated automatically on a time basis. In both cases, the controlsystem will automatically start the backwash pumps and reset valves as necessaryto backwash and to keep the remaining filter operating.

2.03 PRESSURE VESSELS

A. Single Media Filters

1. Provide two fixed, deep-bed-type, single media filters.

2. Each vessel shall be 10 feet in diameter by 10 feet side wall height. The vessel shallbe fabricated from carbon steel plate conforming to ASMESA-283, SA-285,SA-515, or SA-516 and shall be designed, constructed, and stamped in accordancewith the ASME Code, Section VIII, for a design pressure rating of 35 psig at 150°Fand a test pressure of 53 psig. There shall be a 1/16-inch corrosion allowance.

R3310909 ' 11340-5

3. Each vessel shall be complete, with all necessary connections including, but notlimited to, a 20-inch-diameter manway and davited cover in the top head, 20-inchmanway in the side shell immediately above the underdrain system, andfabricated support legs.

4. Internally, the filters shall be designed to ensure an even flow distributionthrough the media. The following shall be furnished as a minimum.

a. Inlet distributor of steel construction designed to ensure completedistribution over the filter media.

b. An underdrain collection system that shall provide for a uniform downwardvelocity profile across the filter bed cross-section at the underdrain location.The collection system shall retain the filter media while allowing free passageof treated water. The underdrain system shall also distribute the backwashwater and air scour in a manner that will not cause channeling of the filtermedia bed. The underdrain system shall consist of a network of 304 stainless-steel backwash air distribution laterals overlaid by precast concrete air andwater distribution blocks. Alternately, the underdrain system shall be of thefalse bottom type with 316 stainless steel or plastic strainers, designed towithstand full pressure in either direction if the strainers become blocked.

c. Tie-down and support bars for the inlet distributor, underdrain collectionsystem and the air-scour distributor, as required.

5. An automatic air-release valve with vacuum check shall be supplied with eachfilter. This valve shall discharge air to the controlled vent system, shall be locatedas shown on the Drawings, and shall conform to the requirements ofSection 15100.

B. Vessel Finishing and Coating

1. Filters shall have all welds and any other sharp edges ground smooth, and allimperfections such as skip welds, deiamination, scabs, slivers and slag shall becorrected prior to abrasive blasting. Internal surfaces of the filters shall be blastedto a white metal surface (SSPC-SP5) to provide an anchor pattern in the metal

flR3056«,s

corresponding to approximately 20to 25 percent of the film thickness of thecoating. The exterior of the adsorber shall be sandblasted with a commercialblast-cleaner (SSPC-SP6).

2. The interior of the filter shall be lined in order to prevent corrosion that will occurwhen wet filter media is in contact with carbon steel. This lining shall exhibitabrasion-resistant qualities to prevent erosion by movement of the granularmedia and shall be compatible with the liquid being treated (seeDrawing 0224-5D101). The finished lining shall have a minimum 10-mil dry filmthickness to insure protection of the steel surface for a satisfactory period.

3. Following sandblasting of the exterior, a rust-inhibitive primer shall be applied toa dry film thickness of 3.0 mil before any rust can form. The finish exteriorpainting using an alkyd resin-based paint for outside service must be applied tothe exterior of the filter before rust can form beneath the primer coat.

2.04 FILTER MEDIA

A. Each deep-bed filter shall have a 60-inch bed of filter silica. The filter media shall besupported by 18 inches of graded gravel in five distinct layers.

B, The filter sand shall be well-graded, rounded, washed silica sand completely free frommica, dust, dirt, and foreign substances of any kind and shall have a specific gravity ofabout 2.6. The sand shall have an effective size of 1.9 mm and a maximum uniformitycoefficient of 1.35. The sarid shall also have a hardness of 6 to 7 on the Moh Scale and aKrumbein roundness coefficient of 0.85 to 0.90. Hydrochloric acid solubility shall notexceed 5 percent by weight when tested in accordance with AWWASpecification 8100-80.

C. Gravel shall consist of hard, uncrushed, round stones with an average specific gravity ofnot less than 2.6. No more than 1 percent by weight shall have a specific gravity of2.25 or less. The gravel shall not contain more than 2 percent by weight of thin flat orelongated pieces as determined by hand picking. Gravel shall be free of shale, mica,clay, sand, dirt, loam and organic impurities of any kind and shall contain no iron ormanganese in form or quantity that will adversely affect the water filtered. Digestionfor 24 hours with concentrated hydrochloric acid shall result in a weight loss of no more

R3310909 11340-7

than 5 percent. The percent void in any layer shall be no less than 35 percent or morethan 65 percent. The gravel layers shall be sized and laid out as follows:

Top =

Next =Next =

Next =

Next =

4 inch4 inch

4 inch2 inch

4 inch

1/2x1/4 inch

1/4x1/8 inch1/2x1/4 inch3/4x1/2 inch

1-1/2x3/4 inch

2.05 VALVES AND APPURTENANCES

A. At a minimum, ail valves shown on the drawings shall be provided. Automatic valvingshall fully isolate the filters from the backwash pumps when the filters are not beingbackwashed.

The following valves must be provided:

Number (per filter)

Control

11

11

11

Isolation

1

1

11

11

Size

8 inch8 inch

8 inch8 inch

4 inch4 inch

Description

Filter influent valveFilter effluent valve

Backwash influent valveBackwash effluent valve

Backwash air valveFilter vent valve

B. Control valves, except the filter effluent valves, shall be open-closed, two positionpneumatically operated butterfly valves that use air only while changing position andwhich are designed for operation from a 100 psi air source. Manual override capabilityshall be provided. Actuator pistons shall be double-acting. Air pressure in the air linesto the actuators shall drive the actuator in both directions. Open-closed positionindication shall be provided. Actuators shall be self-lubricating with high torqueoutput and quarter-turn output. Moving parts shall be fully enclosed. Butterfly valvesshall be of the water type with stainless-steel disc and stem.

R3310909 11340-8 AR3056ti7

C. The filter effluent control valves shall be open-throttled-closed, three position,pneumatically operated butterfly valve for flow restriction through recently cleanedfilter. All other valve specifications shall be as described above.

*v

D. Isolation valves shall be manually operated butterfly valves of the wafer-type withstainless-steel disc and stem.

E. Manually operated valves installed more than 6 feet from the ground shall be providedwith a chainwheel operator and chain.

F. One 3-inch manually operated gate valve will be supplied to drain each filter. Thesevalves will conform to the requirements of Section 15100.

G. Solenoid valves required to actuate unit control valves shall be mounted directly on therespective control valves. Wiring between solenoid valves and the control panel shallbe provided. Pressure regulator, filter sets and air-pressure gauges required to provideair at the correct pressure for solenoid valve operation shall be provided. Tubingbetween solenoid valves and control valves shall be PVC-covered copper withcompression fittings, clamped, and supported. Each solenoid valve shall have a manualoverride and allow all automatic valves to be operated manually and independently ofthe control system.

2.06 INSTRUMENTATION AND CONTROLS

• A. Furnish one local control panel plus the necessary input/output and programminginformation for integrating filter operation in the main system operation computer.

1. The local control panel shall be a free standing NEMA-4 or -4X enclosure withface-mounted instruments and'controls and rear access doors. The panel shall beshop wired to a terminal strip and tubed to bulkhead fittings for connection tofield wiring as necessary.

2. The local control panel and system control inputs shall provide all the controlsthat are necessary to operate and monitor the Deep Bed Filters.

R3310909 11340-9 AR3056i*8

3. The system control input shall include programming information to regulate deepbed filter normal operation and backwash sequence through the overall systemoperation computer.

4. The local control panel will include the following as a minimum:

a. Pushbuttons to automatically backwash either filter out of sequence.

b. Auto-manual for filter operation selector switch.

c. Pushbuttons to operate individual filter control valves.

d. "On-Auto-Off" operating switches to start and stop backwash pumps andbackwash blowers.

e. Indicator lights to show individual valve position.

f. Indicator lights to show backwash pumps and backwash blowers operation.

B. The filter system shall be provided with a differential pressure switch to automaticallyinitiate a backwash sequence if required sooner than programmed.

PARTS: EXECUTION

3.01 DELIVERY AND STORAGE OF EQUIPMENT

A. All equipment shall be crated, or otherwise packaged, and delivered to protect againstdamage during shipment.

B. All parts shall be properly protected so that no damage or deterioration will occurduring prolonged delay from time of shipment until installation is completed and theunits and equipment are ready for operation. Finished iron or steel surfaces notpainted shall be properly protected to prevent rust and corrosion.

C. Filter vessel shall be hydraulically tested in the factory prior to shipment.

R3310909 11340-10

D. Flange faces shall be protected from damage. All openings are to be covered toprevent entrance of dirt, water, and debris.

E. The filter vessels shall be provided with lifting lugs. Nozzles, manholes, piping or other%

fittings shall not be used for lifting.

3.02 INSTALLATION

A. Installation of equipment onto a concrete pad shall be performed by the Contractor instrict accordance with the manufacturer's instructions and recommendations. Anchorbolts will be set in accordance with the manufacturer's recommendations.

B. The services of a manufacturer's field representative who has complete knowledge ofproper installation shall be furnished for a total of four 8-hour days (2 days per filter) tosupervise the Contractor's placement of the filter gravel and media in the vessels.

3.03 PAINTING

A. All exterior ferrous metal surfaces of vessels, tanks, valves, piping, and structuralmembers shall be prepared, primed, and finish painted prior to delivery andinstallation, as specified in Section 09901.

B. Furnish one can of primer and touch-up paint for each color and type of finishprovided.

R3310909 11340-11 AR305650


A. Tanks shall be shop-tested in accordance with the applicable sections of the ASME Codefor unfired pressure vessels. Tanks must bear inspection stamps required by the ASMECode.

B. The entire system shall be field-tested for leaks by filling with water. Tanks shall bechecked for leaks after they have been filled and pressurized at 50 psi for at least onehour. ,

C. Should the equipment fail to perform in accordance with these specifications, theContractor shall, at his own expense, make such modifications as are necessary toprovide satisfactory performance and retestthe equipment.

END OF SECTION

R3310909 11340-12

SECTION 11345GRANULAR ACTIVATED CARBON ADSORPTION SYSTEM

GAC-1

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required and install, field test,and place into satisfactory operation the Granular Activated Carbon AdsorptionSystem, as indicated on the drawings and as specified herein.

B. The system shall include, but shall not be limited to, the following:

1. Two 10.0-foot-diameter pressure adsorbers, each with a 20,000-pound granularactivated carbon capacity.

2. All associated piping, valves, and controls required for operation, backwashing,and carbon transport, as described herein and as shown on the drawings.

3. An initial supply of 40,000 pounds of granular activated carbon.


A. Painting is included in Division 9.

B. Air compressor system is included insertion 11372.

C. Centrifugal pumps are included insertion 11212.

R3310909 11345-1 AR305652

1.03 SUBMITTALS

A. Shop drawings shall be submitted as provided in the Section 01170, and shall alsoinclude the following at a minimum:

1. System flow schematic drawing indicating line sizes, valving, and connections.

2. Vessel shop or fabrication drawings.

3. Detailed dimensioned drawings of all adsorber internals.

4. Operating weight of all system components.

5. Shop testing documentation.

6. Pressure drop through the system at the maximum process flow rate and duringbackwashing.

7. Documentation of the system manufacturer's ability to design and supply aneffective adsorption system, including descriptions of at least three existingadsorption systems for similar applications with references who may be contactedto verify system performance.

8. Structural design computations for the support structures.

B. Operation and maintenance manuals shall be submitted as specified in theSection 01170.

R3310909 11345-2 3R305653


A. The Granular Activated Carbon Adsorption system will be used to remove lowconcentrations (total of 1 mg/L or less) of dissolved organic compounds includingtrichloroethene (TCE), trans-1,2-dichloroethene (trans-1,2-DCE), methylene chloride(MC), vinyl chloride (VC), and acetone from contaminated groundwater flowing at aminimum rate of 220 gpm and a maximum rate of 650 gpm. During normal operation,two carbon adsorbers will be operated in series. Water will enter the adsorbers at thetop and will flow downward through a fixed-carbon bed, exiting the adsorber at thebottom.

B. Expected carbon adsorption system influent and effluent quality is shown onDrawing 0224-5D101.

1.05 QUALIFICATIONS AND QUALITY ASSURANCE

A. All equipment to be furnished under this section shall be furnished by a single supplierwho is fully experienced, reputable, and qualified in the supply of the system to befurnished, and who can provide documentation of and references for at least twosimilar successful installations. The equipment shall be designed, constructed, anddelivered in accordance with best practices and methods.

B. The Granular Activated Carbon Adsorption System shall be as manufactured by CalgonCarbon or an approved equal.

C. The services of a manufacturer's representative who has complete knowledge ofproper operation and maintenance shall be furnished to inspect the final installationand to supervise test runs of the equipment.



B. Factory representatives who have complete knowledge of proper operation andmaintenance of the equipment shall be provided for a total of five 8-hour days to

R3310909 11345-3 AR3Q5651*

instruct representatives of the Government on proper operation and maintenance,startup, shutdown, lubrication, troubleshooting, and safety of the equipment.


A. All special tools required for normal operation, adjustment, and maintenance shall befurnished with the equipment.

B. All tools and spare parts shall be packed in containers which are clearly identified as totheir contents. All items shall be suitably packed and protected for long periods ofstorage in accordance with the requirements of the Section 01170.

PART 2: PRODUCTS

2.01 GENERAL

A. These Specifications are intended to give a general description of what is required, butdo not cover all details, which may vary in accordance with the exact requirements ofthe equipment as offered. They are, however, intended to cover the furnishing,delivery, installation, and field testing of ail materials, equipment and appurtenancesas required. Any additional auxiliary equipment necessary for the proper operation ofthe proposed installation but not mentioned in these Specifications or shown on thedrawings shall be furnished and installed at no additional cost to the Government.

B. The material covered by these Specifications is intended to be standard equipment ofproven ability and as manufactured by reputable concerns having experience in theproduction of such equipment. The equipment furnished shall be designed,constructed, and installed in accordance with best practice and methods and shalloperate satisfactorily when installed as shown on the drawings.

C. The Granular Activated Carbon Adsorption System shall be furnished as a completeassembly with all vessels, vessel internals, wiring, piping, valving and control devices, asnecessary for system operation.

D. All equipment shall be designed and proportioned to have liberal strength, stability,and stiffness and to be especially adapted for the intended service.

R3310909 11345-4 AR30565-5

2.02 CARBON ADSORPTION SYSTEM

A. Adsorbers, piping, valves, and controls shall be designed so that the system may beoperated as follows:

1. Any one of the following four operating modes may be selected:

a. No. 1 Lead, No. 2 Lagb. No. 2 Lead, No. 1 Standby _ . _Series Operationc. No. 2 Lead, No. 1 Lagd. No. 1 Lead, No. 2 Standby _e. No. 1 Lead, No. 2 Lead (Parallel Operation)

2. Selection of a particular operating mode shall be accomplished manually bymaking all necessary valve settings on influent, effluent and interconnectingpiping.

3. Spent carbon in the standby adsorber may be manually exchanged with freshcarbon without affecting the operation of the remaining adsorber. Carbon

exchange will take place in two steps: (1) spent carbon shall be transferred fromthe standby adsorber into an empty carbon delivery truck, (2) fresh carbon shallbe transferred from a full delivery truck into the standby adsorber. Thecompressed air requirement for each step shall not exceed 100scfm at SOpsi.Carbon exchange may require opening of the adsorber vessels and the addition ofwater, as needed for forming a slurry with the carbon. Water requirements willnot exceed 100 gpm at 30 psi.

B. Total pressure drop through the system with any two adsorbers operating in series at aflow rate of 650 gpm shall not exceed 20 psig.

C. Each adsorber shall be mounted on a structure designed to support the adsorbervessels and all attached equipment under all operating conditions. The supportstructure shall be designed to provide ready access to piping and valves. Anchor boltsfor setting vessels on concrete pad shall be Type 304 stainless steel and shall befurnished with the equipment.

R3310909 11345'5 AR305656

2.03 PRESSURE VESSELS

A. Carbon Adsorbers:

1. Provide two downflow, fixed-bed type, granular activated carbon adsorbersdesigned for operation as described in Section 2.02 A. 1.

2. Each adsorbers shall have capacity for 20,000 Ibs. of granular activated carbon andshall be a 10-foot-diameter pressure vessel. Each vessel shall be fabricated fromcarbon steel plate conforming to ASME SA-455 or ASTM A-516 GR70 and shall bedesigned, constructed, and stamped in accordance with the ASME Code,Section VIII, for a design pressure rating of 75 psig at 150°F and a test pressure of1.5 times the design pressure. Adequate freeboard space shall be provided in theside shell height.

3. All nozzle connections shall be flush on the inside face of the shell and providedwith 125 pound, full-face flanges on the outside conforming to ASTM A126,Class A. The following nozzle connections, at a minimum, shall be provided oneach adsorber:

a. 6-inch process inletb. 2-inch carbon inlet/outletc. 2-inch compressed air inlet and ventd. 6-inch process outlete. 3-inch drain

4. At a minimum, the adsorbers shall be furnished with two 24-inch-diametermanholes, one to be located on the top of the vessel and the other on the side justabove the underdrain system. Any other manholes needed to provide access to alladsorber internals shall be provided.

AR305657R3310909 11345-6

5. Internally, the adsorbers shall be designed to ensure an even flow distributionthrough the carbon bed and complete removal of spent carbon. Adsorbers shallbe furnished with the following at a minimum.

a. Flow distributing nozzles, Type 316 stainless steel, of sufficient number andsize for the maximum process flow rate of 650 gpm.

b. An underdrain collection system that shall provide for a uniform downwardvelocity profile across the carbon bed cross-section at the underdrain location.The collection system shall retain the granular activated carbon whileallowing free passage of treated water. Neither sand nor gravel shall beinstalled inside the adsorber.

C. Vessel Finishing and Coating

1. Adsorbers shall have ail welds and any other sharp edges ground smooth, and ailimperfections such as skip welds, delaminations, scabs, slivers, and slag correctedprior to abrasive blasting. The adsorber internal surface shall be blasted to awhite metal surface (SSPC-SP5) to provide an anchor pattern in the metalcorresponding to approximately 20 percent to 25 percent of the film thickness ofthe coating. The exterior of the adsorber shall be sandblasted to a commercialblast cleaning (SSPC-SP6).

2. The interior of the adsorbers shall, be lined in order to prevent corrosion that willoccur when wet activated carbon is in contact with carbon steel. This lining shallexhibit abrasion-resistant qualities to prevent erosion by movement of thegranular media. The finished lining shall be a minimum 35-mil, dry film thicknessto ensure protection of the steel surface for a satisfactory period. A coating shallbe used which exhibits excellent chemical resistance to a wide range of watersolutions and meets requirements of the U.S. Federal Register, Food and DrugRegulations Title 21, Chapter 1, Paragraph 175.300.

3. Following sandblasting of the exterior, a rust inhibitive primer shall be applied toa dry film thickness of 6.0 mil before any rust can form. The finish exteriorpainting using an alkyd resin-based paint for outside service must be applied tothe exterior of the adsorbers before rust can form beneath the primer coat.

R3310909 11345-7 AR305658

2.04 PIPING

A. Piping shall be provided as shown on the drawings and as specified herein. Adjustmentof piping locations within the limits of the carbon adsorption system will be permitted,provided that the following conditions are met:

1. The pipe interface points at the system limits are unchanged.

2. Pipe sizes and function are unchanged.

3. Instrumentation and valves remain accessible for maintenance and/or manualoperation, as applicable.

4. Space requirements are not increased.

B. Process water piping shall be carbon steel conforming to the requirements ofSection 15061.

C. Carbon discharge and fill piping shall be polypropylene-lined steel rated at 150 psig at225°F.

D. Compressed air piping shall be threaded, Schedule 80, galvanized carbon steel pipe perASTM A120, rated for 125 psig at 350°F.

E. Pipe finish and coating shall be as specified in Section 15061.

R3 310909 11345-8 AR305659

2.05 VALVES AND APPURTENANCES

A. Process water control valves shall be butterfly valves. Butterfly valves shall be cast iron,one-piece water type body with aluminum-bronze disc and stainless-steel one piecethrough shaft to mate with 150 pound ANSI flanges. Valves shall be rated for 200 psigin closed position at 212"F and to meet or exceed all of the design strength, testing, andperformance requirements of AWWA Specification C-504-70.

iB. Valves on the carbon fill and discharge piping shall be either one of the following:

1. TFE-lined, ductile iron body plug valve, or

2. Stainless-steel, end entry, full bore ball valve with blow-out proof stem and seatretainer designed to permit valve to be dead-ended in either flow direction, withType 316 stainless-steel body, ball and stem, and with TFE seats and seals.

C. Manually operated valves located higher than 6feet off the ground shall be providedwith a chainwheel operator and chain.

D. Manual air release vents shall be provided on the process piping interconnecting eachadsorber and on the effluent pipe, as shown on the drawings. These valves shallconform to the requirements of Section 15100.

E. The effluent piping from the Adsorption system shall be equipped with an automaticvacuum breaker to prevent draining of the Adsorption System, should influent flow bestopped.

F. The granular activated carbon transfer piping shall be fitted with quick-disconnectcouplings constructed of corrosion-resistant material.

G. Two flush connections shall be provided on each GAC fill or discharge line, oneupstream and one downstream of the plug or ball valve. Connections shall be weldedinto steel pipe or supplied in solid polypropylene "spacers" for lined pipe. Flushconnections shall consist of a short section of 3/4-inch pipe, a 3/4-inch full port stainless-steel or plastic ball valve, and 3/4-inch quick disconnect adapter to match with waterhose.

R3310909 11345-9 AR305660

H. A pressure relief device for each adsorber and transfer tank shall be provided, withrelief capacity as required by ASME Code and hydraulic system analysis. Relief ventingshall be integral to the Granular Activated Carbon Adsorption System piping anddirected to a common collection point.

I. The process piping shall be equipped with pressure gauges to indicate the pressure ofwater entering and exiting each adsorber to provide information on pressure dropsacross each adsorber and the system. The pressure indicating gauge shall have a facediameter of 4-1/2 inches, with a stainless-steel Bourdon tube in a glycerin-filledhousing. The gauge shall read 0-100 psig with an accuracy of 1 percent of full range.

2.06 GRANULAR ACTIVATED CARBON

A. The manufacturer shall supply and install an initial inventory of 40,000 pounds of virgingranular activated carbon manufactured from bituminous coal. The carbon shall beCalgon Filtrasorb 300, or approved equal.

B. In order to minimize the amount of fines in the activated carbon, the activated carbonshall be washed at the supplier's factory prior to shipment. The amount of fines(passing a 325 sieve) in the carbon at the job site (prior to placement in the vessels) shallnot exceed 2 percent by dry weight. The carbon vendor shall take all precautionsnecessary to minimize the production of fines during transport to the site and into thecarbon vessels.

PARTS: EXECUTION

3.01 DELIVERY AND STORAGE OF EQUIPMENT

A. All equipment shall be crated, or otherwise packaged, and delivered to protect againstdamage during shipment.

B. All parts shall be properly protected so that no damage or deterioration will occurduring prolonged delay from the time of shipment until installation is completed andthe units and equipment are ready for operation. Finished iron or steel surfaces notpainted shall be properly protected to prevent rust and corrosion.

R3310909 11345-10 flR30566l

C. The complete system shall be skid-mounted in so far as is possible, assembled in thefactory and tested prior to shipment to ensure correctness of fit and operation. Whereabsolutely necessary, some piping may be match-marked and broken down in aminimum number of pieces for field assembly by the Contractor. Pressure gauges, localinstruments and primary elements, etc., may be removed for protective shipment andshall be installed in field by the Contractor.


E. The system shall be provided with lifting lugs. Nozzles, manholes, piping, or otherfittings shall not be used for lifting.

3.02 INSTALLATION

A. Installation of equipment onto a concrete pad shall be performed in strict accordancewith the manufacturer's instructions and recommendations.

3.03 PAINTING

A. All exterior ferrous metal surfaces of vessels and tanks, valves, piping and structuralmembers shall be prepared, primed, and finish-painted prior to delivery andinstallation, as specified insertion 09901.

B. Furnish a 1-gallon can of primer and touch-up paint for each color and type of finishprovided.


A. Tanks shall be shop tested in accordance with the applicable sections of the ASME Codefor unfired pressure vessels. Tanks must bear inspection stamps required by the ASMECode.

B. The services of a manufacturer's field service representative who has completeknowledge of proper operation and maintenance shall be furnished to inspect the finalinstallation and supervise test runs of the equipment and system components.

R3310909 11345-11 AR305662

C. The entire system shall be field tested for leaks by filling with water. Tanks shall bechecked for leaks after they have been filled and pressurized at 35psi for at least1 hour.

D. The carbon transport system shall be tested by transferring carbon from a deliverytruck into each empty adsorber, and by transferring carbon from each adsorber into anempty delivery truck. The entire sequence shall be repeated at least twice and to thesatisfaction of the Government Site Representative.

E. Should the equipment fail to perform in accordance with these Specifications, theContractor shall, at this own expense, make such modifications as are necessary toprovide satisfactory performance, and retestthe equipment.

END OF SECTION

R3310909 11345-12 AR305663

SECTION 11350SLUDGE THICKENER

ST-1

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to install a gravitythickener to concentrate iron hydroxide sludge from the inclined plate separator,backwash solids from the near- and downgradient sand filters, and waste biosolidsfrom the bio-oxidation towers. The solids loading to the thickener is expected to be2,500 Ibs/day dry solids. The thickened solids concentration is expected to be«11 percent.


A. Surface preparation and shop prime painting is included in Section 09901.B. Field painting is included in Section 09902.C. Piping and valves are included in Division 15.D. Concrete work is included in Division 3.


A. The gravity thickener will consist of a 22-foot-diameter by 17.5-foot side wall steel tanksupported by a concrete foundation and floor, as shown on the drawings.

B. The gravity thickener shall include but not be limited to the following:

1. A 22-foot-diameter by 17.5 foot side wall steel tank.

2. Concrete foundation with sludge hopper. Floor slope shall be 3inches to12 inches.

3. Access bridge/walkway capable of supporting 150 ib/ft live load.

R3310909 11350-1 AR30566**

4. Steps to access bridge/walkway capable of supporting 150 Ib/ft live load.

S. Center drive assembly capable of thickening 11 percent solids by weight metalhydroxide sludge.

6. Overload alarm for center drive mechanism.

7. Circular effluent weir and collection launder.

1.04 QUALIFICATIONS AND QUALITY CONTROL

A. All of the equipment furnished under this section shall be supplied by a singlemanufacturer who is fully experienced, reputable, and qualified in the manufacture ofthe system components to be furnished. The equipment shall be designed,constructed, and installed in accordance with the best practices and methods.

B. The gravity thickener mechanism shall be manufactured by Walker Process or approvedequal.

C. The gravity thickener manufacturer shall submit and follow quality control proceduresadequate to ensure that all fabrication complies with these specifications. Qualitycontrol shall include a final inspection by the manufacturer and the submittal of awritten record of this final inspection.

D. All tank seams shall be fusion welded and stress-relieved by an approved method.

E. Tank surfaces shall be ground smooth and left free of rust, scale, grease, dust, dirt, anddebris.

1.05 SUBMITTALS

A. Submit to the Government Contracting Officer, as provided in Section 01300, shopdrawings showing details of construction and erection as follows:

1. Dimensions of tank, fittings, and attachments.2. Wall thickness.

R3310909 1135°-2 AR305665

3. Locations of fittings, attachments, and joints.4. Elevations of scum baffle and weir plate.5. Drive motor and torque rating.6. Statement that fabrication is in accordance with these specifications.



B. Factory representatives who have complete knowledge of proper operation andmaintenance of the equipment shall be provided for a total of three 8-hour days toinspect the thickener installation and to instruct representatives of the Government onproper operation and maintenance, startup, shutdown, lubrication, troubleshooting,and safety of the equipment.

1.07 TOOLS AND SPARE PARTS\

A. All special tools required for normal operation and maintenance shall be furnishedwith the equipment, in accordance with Section 01170.

B. All tools and spare parts shall be packed in containers which are clearly identified as totheir contents. All items shall be suitably packed and protected for long periods ofstorage.

C. One gallon of paint shall be provided for touch-up.

D. The spare parts recommended in the manufacturer's operation and maintenancemanual shall be provided.

E. The thickener manufacturer's ability to design and supply an effective system,including descriptions of three existing systems designed and supplied by themanufacturer, shall be documented and references provided of individuals who maybe contacted to verify performance.

R3310909 11350-s AR305666

PART 2: PRODUCTS

2.01 SLUDGE THICKENER TANK

A. Steel tank shall be 22 foot diameter by 12 foot side wall.

B. Steel tank shall be made from Class A open-hearth steel equivalent to ASTMSpecification A283, Grade B, minimum of 1/4-inch steel plate.

C. Tank shall be designed for a minimum pressure of 7 psig.

2.02 ACCESS BRIDGE/WALKWAY

The thickener shall have a steel beam access and support bridge extending across the tank diameter.The walkway of the bridge shall be checkered aluminum plate at least 4to3feet wide extendingacross approximately one-half the bridge length. The bridge shall be supported on the tank walls.Bridge live loads shall be 150lb/ft. Steps to access bridge/walkway shall be securely fastened to thethickener tank and shall be designed for 150 Ib/ft live loads.

Beam bridges shall have 1-1/2-inch-diameter aluminum pipe handrails extending along both sides ofthe bridge walkway in accordance with OSHA standards.

2.03 CENTER DRIVE ASSEMBLY

A. The drive assembly for each thickener shall consist of a drive motor, primary reducer,fabricated steel drive base, drive and driven sprockets with drive chain, worm gear,overload alarm and cut-off actuating system, and shear pin coupling.

The allowable stress values used in the design of the gearing shall conform to the latestrevision of the following current standard:

8. Worm Gearing: AGMA 440.04 - Single and Double - Reduction Cylindrical -Worm andHelical - Worm Speed Reducers.

C. Drive Motor. The drive motor shall be 1-1/2 hp, NEMA Design B, totally enclosed withClass B insulation, and shall include a sealed conduit box. The motor shall be suitablefor 3-phase, 60-hertz, 460-volt service and shall be connected to the primary reducer

R3310909 11350-4 AR305667

either directly or by V-belts. The motor and the primary reducer shall be mounted on afabricated steel base.

D. Primary Reducer. The primary reducer shall be of the worm-gear type and shall drivethe worm gear through a steel roller chain and steel sprockets, all enclosed in an OSHA-approved, fiberglass, chain guard.

E. Worm Gear. The worm gear shall consist of a carburized, hardened, and ground, AISI(8620) alloy steel worm shaft and a Meehanite A48 CL40 worm gear all placed within acast iron housing complete with oil fill, level and drain fittings, and sight gauge.

The worm shaft shall be cast as an integral unit. The worm gear shall have a minimumpitch diameter of 28 inches and a minimum face width of 4 inches.

Bearings supporting the worm and worm gear shall operate in an oil bath. Plain orsleeve-type bearings will not be acceptable.

The worm gear shall have a bearing race diameter of not less than 20 inches and shalldevelop a maximum continuous running torque of 10,275 ft-lbs at a speed of0.208 rpm.

F. Overload Alarm. The center drive assembly shall be furnished with an overloadprotection system provided with a visual load indicator'plainly showing the overloadpoints. The overload alarm shutoff system shall consist of two micro switches, one toclose an alarm circuit when the load reaches the continuous torque capacity of thedrive, and one to cut off the motor when the load reaches 125 percent of thecontinuous torque capacity. The micro switches shall be mounted in a watertighthousing and shall be actuated by the movement of the worm shaft in the worm gear.A plexiglass window shall be mounted on the housing for observance of the dialposition. Additional protection above the shutoff point shall be provided by shearpins.

2.04 INFLUENTWELL

The Sludge Thickener shall be furnished with an influent well of adequate size to provide efficientdistribution of flow entering the tank. The influent well shall be not less than 3 feet in diameter by

R3310909 11350-5 QR305668

4feet, side depth, fabricated from 1/4-inch steel plate and reinforced as necessary. The well shall besupported either from the torque tube or from the access bridge.

A scum relief port shall be provided on the well. The well shall also be furnished with a 3-inch flangedconnection located approximately 6 inches outside the well and designed to connect with the side-entering influent pipe.

2.05 TORQUE TUBE -

A steel torque tube shall be supported from the worm gear and shall beat least 10 inches in diameter,constructed of 1/4-inch minimum structural steel members designed to support and rotate the sludgecollector arms. Connection to the worm gear shall be adjustable for proper alignment and allowancefor structural tolerances.

2.06 SLUDGE COLLECTOR ARMS

Each thickener shall have two rigidly braced structural steel collector arms supported by the torquetube. The collector arms shall have 3/16-inch-thick steel flights with adjustable 16-gauge galvanizedsteel squeegees to direct settled sludge to the hopper at the center of the tank. The flights shall bearranged so as to sweep the tank twice for each revolution of the center drive. The collector armsshall be fabricated from rolled structural angles or sections having a minimum thickness of 1/4 inchand designed to meet AISC specifications when the continuous torque of the drive unit is applied. Asludge concentrator, fabricated of steel shapes or pipe to fit the shape of the centrally-located sludgehopper, shall be furnished for attachment to the lower end of the torque tube. All structural steelshall have a minimum thickness of 1/4 inch.

2.07 EFFLUENT WEIR'AND LAUNDER

The effluent weir shall be a v-notched weir constructed of ASTM A36 steel. The weir shall be capableof discharging a maximum flow of 100 gpm to the effluent launder at a maximum weir loading of10,000 gallons/linear foot/day.

The effluent launder shall be constructed of ASTM A36 steel. The effluent launder shall be sized for amaximum and average flows of 100 gpm and 25 gpm, respectively. Minimum flow velocity shall be2 ft/second. All anchor bolts shall be 304 stainless steel.

I

R3310909 11350-6 AR305669

2.09 WELDING

The Equipment Manufacturer's shop welding procedures, welders, and welding operators shall bequalified and certified in accordance with the requirement of AWSD1.1 "WELDING IN BUILDINGCONSTRUCTION" of the American Welding Society.

The Equipment Manufacturer's shop drawings shall clearly show complete information regardinglocation, type, size, and length of all welds in accordance with "STANDARD WELDING SYMBOLS"AWS A2.0 of the American Welding Society. Special conditions shall be fully explained by notes ordetails. The Contractor's welding procedures, welders, and welding operators shall be qualified andcertified in accordance with the requirements of AWSD1.1, "WELDING IN BUILDINGCONSTRUCTION," of the American Welding Society.

2.10 ELECTRICAL WORK

The Contractor shall furnish and install all field wiring required including proper sized wire, conduit,fittings, and supports.

The Contractor shall furnish and install all electrical items required but not specifically called for asfurnished by the Equipment Manufacturer.

2.11 PAINTING

All ferrous surfaces shall be cleaned in accordance with SSPC-SP-10 and given one shop coat ofTNEMEC 37-77 primer or equal in accordance with Section 09901.

Field touchup of scratches, mars, and bruises to shop-applied primer coatings, and all finish paintingshall be furnished and applied by the Contractor in accordance with Specification Section 09902.

All items such as motors, reducers, and equipment completely shop assembled and ready forinstallation shall be given one shop coat of the Equipment Manufacturer's machinery enamel.

2.12 ANCHORAGE

The Equipment Manufacturer shall furnish ail anchor bolts, nuts, washers, and gaskets necessary forthe equipment furnished by him.

R3310909 1135°-7 AR305670

The Contractor shall place the anchorage in accordance with certified prints supplied by theEquipment Manufacturer.

2.13 STARTUP/SERVICES

The Equipment Manufacturer shall provide the services of a field service representative for a total oftwo trips for a total of not less than three 8-hour days for the purpose of inspecting the installedequipment and of instructing and assisting The Government's personnel in the startup and properoperation of the equipment.

PART 3: EXECUTION



B. All parts shall be preassembled to the largest extent possible, compatible withtransportation limitations and equipment protection considerations. Field assembly, ifany, shall require merely bolting together of match marked components.

C. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe units and equipment are ready for operation. Finished iron or steel surfaces notpainted shall be properly protected to prevent rust and corrosion.

D. Factory-assembled parts and components shall not be dismantled for shipment unlesspermission is received in writing from the Government Contracting Officer.

E. Flange faces shall be protected from damage. All openings are to be covered toprevent entrance of dirt, water, and debris.

F. Equipment must be mounted on skids or protective framework with lifting lugs asneeded, so as to provide for easy handling for a crane or similar device.

G. The Equipment Manufacturer shall provide instructions' for unloading and installationof shop-fabricated equipment.

R3310909 11350-8 A R3 056 7 I

3.02 INSTALLATION

A. Installation of equipment shall be in strict accordance with the manufacturer'sinstructions and recommendations at the locations shown on the Drawings.Installation shall include furnishing the required lubricants for initial operation. Thegrades of oil and grease shall be in accordance with the manufacturer'srecommendations.


A. The services of a manufacturer's representative who has complete knowledge ofproper operation and maintenance shall be furnished to inspect the final installationand to supervise test runs of the equipment.

B. After the installation is complete, all equipment shall be hydrostatically field tested forleaks by filling with water. Equipment shall be checked for leaks after it has been filledfor at least 1 hour.

C. After hydrostatic testing, the equipment shall be placed in operation under thesupervision of a factory representative.

END OF SECTION

R3310909 11350-9 AR305672

SECTION 11355INCLINED PLATE SEPARATOR

IPS-1

PARTI: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required to install complete andready for operation an Inclined Plate Separator (IPS-1), as shown on the Drawings andas specified herein.


A. Manganese Oxidation Tank is included in Section 13295.B. Manganese Oxidation Mixer is included in Section 11220.C. Separator Underflow Pumps (P-34, P-35) included insertion 11313.D. Concrete including setting of anchor bolts is included in Division 3.E. Piping and valves are included in Division 15.F. Electrical work is included in Division 16.


A. One inclined-plate separator shall be provided for the purpose of settling out the ironhydroxide and manganesium oxide precipitated from-the contaminated groundwater.The maximum influent concentrations of iron and manganese are expected to be90 mg/L and 40 mg/L, respectively. The minimum and maximum expected flow are200 gpm and 655 gpm, respectively.

A sludge recycle process will be used to achieve a higher solids content. It is expectedthat solids collected in the bottom hopper of the Inclined Plate Separator will have a20 percent (by weight) solids concentration.

R3310909 11355-1 AR305673

Under normal operating conditions, in the sludge recycle mode, the influentsuspended solids concentration is expected to be 7,100 mg/L and the effluentsuspended solids must be less than 30 mg/L.

B. The system shall include, but not be limited to, the following:

1. One Inclined Plate Separator2. Access platform and stairs3. Supports

C. The top surface of the Inclined Plate Separator shall be sealed and vented to the AirPollution Control System to prevent potential emission of vinyl chloride. Access to theinclined plates will be provided for periodic maintenance and removal of potentialsolids build-ups.


A. All of the equipment furnished under this Section shall be supplied by a singlemanufacturer who is fully experienced, reputable, and qualified in the manufacture ofthe system components to be supplied. The system supplier shall be capable ofproviding references from four existing successful installations. The equipment shall bedesigned, constructed, and installed in accordance with the best practices andmethods.

B. The inclined plate separator shall be manufactured by Graver Water, Model 24525R, orapproved equal.

C. The Inclined Plate Separator manufacturer shall submit and follow quality controlprocedures adequate to ensure that all fabrication complies with these specifications.Quality control shall include a final inspection by the manufacturer and the submittalof a written record of this final inspection.

R3310909 11355-2 AR3Q5671*

1."05 SUBMITTALS

A. Submit the following to the Government Contracting Officer in accordance withSection 01170:

1. Literature and shop drawings describing the equipment and showing allimportant details of construction and dimensions, including nozzle locations andhydraulic profile.i

2. Complete wiring diagrams and schematics of all control panels and controldevices furnished under this Section.

'- 3. Documentation of the system manufacturer's ability to design and supply aneffective clarification system, including descriptions of four existing systems withreferences who may be contacted to verify performance.

5. All the requirements of Section 01170.



B. Factory representatives who have complete knowledge of proper operation andmaintenance of the equipment shall be provided for a total of one 8-hour day toinstruct representatives of the Government on proper operation and maintenance,startup, shutdown, troubleshooting, and safety of the equipment.


A. All special tools required for normal operation and maintenance shall be furnishedwith the equipment in accordance with the provisions of Section 01170.


R3 310909 11355-3 AR305675

C. Provide 1 gallon of paint for touch-up.

D. Provide the spare parts recommended in the manufacturer's operation andmaintenance manual.

PART 2: PRODUCTS

2.01 GENERAL

A. These specifications are intended to give a description of what is required, but do notcover all details, which may vary in accordance with the exact requirements of theequipment as offered. Any additional auxiliary equipment necessary for the properoperation of the proposed installation not mentioned in these Specifications, or shownon the drawings, shall be furnished and installed.

B. All equipment shall be designed and proportioned to have liberal strength, stability,and stiffness and to be especially adapted for the intended service.

C. Support structures and equipment shall be rigidly and accurately anchored intoposition, and all necessary foundation bolts, plates, nuts, and washers shall be suppliedby the equipment manufacturer.

D. Equipment components shall be furnished as complete assemblies with all internalwiring, piping, valving, and control devices as necessary for system operation. Thecomponents shall be mounted on a support structure designed to provide ready accessto all piping, valves, and control panels. Ample room shall be provided for inspection,repairs, sampling, and adjustment of the equipment provided under this section, andof other equipment and piping which will be installed beneath it, as shown on thedrawings.

E. The Inclined Plate Separator shall have removable reinforced fiberglass covers. TheInclined Plate Separator shall vent to an Emissions Control System, as shown on thed rawi ngs and as speci fi ed herei n.

F. The Inclined Plate Separator shall be constructed of ASTM A-36 steel, minimum 1/4-inchthickness. Fabrication in general shall be welded construction.

R3310909 11355-4 AR305676

G. The Inclined Plate Separator elevations shall be set as shown on the Drawings.Structural steel supports shall be designed and fabricated in accordance with AISCstandards.

H. All nozzle connections shall end with ANSI standard 125-pound steel flanges.

I. All carbon steel surfaces shall be prepared and painted in accordance withSection 09901 Surface Preparation and Shop Painting.

J. Welding shall be designed and performed in conformance with AWS standards.

2.02 INCLINED PLATE SEPARATOR

A. The Inclined Plate Separator shall be designed with sufficient effective plate area toprovide an effective surface loading rate of 0.25gpm/ft2 or less at the maximum flowrate of 655 gpm.

B. Plates shall be a minimum thickness of 3/16-inch FRP inclined 55° above horizontal.Plates shall be individually removable for cleaning or replacement. Plate spacing willbe at least 2 inches, measured perpendicular to the plate surface.

C. The influent feed port shall be sufficiently large to provide a maximum influentvelocity of 0.4ft/sec at maximum flow. The influent feed shall enter the separatorinclined plates through feed openings in the side of the plates and shall pass upthrough the plates and through orifice holes or weirs designed to assure even feeddistribution across the plates. Effluent shall pass over an adjustable weir(s) to an outletbox for discharge to the Neutralization Tank.

D. Sludge from the bottom of the plates shall fall by gravity into a quiescent zone sludgehopper. The hopper shall have four sides tapering downward at an angle not less than55° above horizontal. One side of the hopper shall be provided with a 20-inch diameteraccess manhole by way of a welded-on flange, drilled and tapped to accommodate agasket and steel plate cover. Another side shall be provided with at least three 1-inchsample taps, evenly spaced between the top and bottom of the hopper. The bottom ofthe hopper shall be a horizontal plate approximately 12-inch square, with a 4-inchvertical sludge withdrawal nozzle.

R3310909 11355-5 AR305677

E. The Inclined Plate Separator shall be furnished with tank shell split horizontally at thetop of the hopper section. Hopper shall be welded in the field. The support legsprovided shall be of such length as to support the units at the elevations shown on thedrawings.

2.03 ACCESS PLATFORM AND SUPPORTS

A. A platform shall be provided for access to components requiring frequent adjustments,service, or inspection. The platform framing, walkway, grating, stairs, and handrailsshall be steel, with galvanized finish after fabrication. The platform shall be aminimum of 42-inch wide. Access stairways shall be provided as shown on thedrawings.

B. Platform and stairs shall be designed to support a uniform live load of 150 pounds persquare foot plus the dead load of the structure and any equipment supported thereon,with a maximum of 1/4-inch deflection.

C. Handrails 42 inches high shall be provided on each side of the platform and on thestairs. A 4-inch toeplate will be provided on the outside of the platform.

D. Design and construction of platforms, stairs, and handrails shall conform to applicableOSHA requirements.

PARTS: EXECUTION



B. All parts shall be preassembled to the largest extent possible, compatible withtransportation limitations and equipment protection considerations. Field assembly, ifany, shall require merely bolting together of matchmarked components.

C. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed and

R3310909 11355-6 AR305678

the units and equipment are ready for operation. Finished iron or steel surfaces notpainted shall be properly protected to prevent rust and corrosion.

D. Factory-assembled parts and components shall not be dismantled for shipment unlesspermission is received in writing from the Government Contracting Officer.

E. Flange faces shall be protected from damage. All openings are to be covered toprevent entrance of dirt, water, and debris.

F. Equipment must be mounted on skids or protective framework, with lifting lugs asneeded, so as to provide for easy handling for a crane or similar device.

G. The Equipment Manufacturer shall provide instructions for unloading and installationof shop-fabricated equipment.

i.3.02 INSTALLATION

A. Installation of equipment shall be in strict accordance with the manufacturer'sinstructions and recommendations in the locations shown on the Drawings.Installation shall include furnishing the required lubricants for initial operation. Thegrades of oil and grease shall be in accordance with the manufacturer'srecom mendati ons.



B. After the installation is complete, all equipment shall be hydrostatically field tested forleaks by filling with water. Equipment shall be checked for leaks after is has been filledfor at I east one hour.


END OF SECTION

R3 310909 11355-7 AR305679

SECTION 11360

FILTER PRESS SYSTEMFP-1

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and appurtenances required to install a FilterPress, complete and ready for operation as indicated on the drawings and as specifiedherein.

B. The equipment furnished shall include as a minimum, but not be limited to, thefollowing:

1. One recessed-chamber Filter Press capable of operating at 100 psig withautomatic shifters and light curtain.

2. One bomb bay door with drip trough.3. One set of splash curtains.4. Local instrument control.

C. The equipment shall be field-tested and placed into satisfactory operation as indicatedon the drawings and specified herein.


A. Air Diaphragm Pumps are included insertion 11313.

B. Steel Pipe and Fittings are included in Section 15061.

C. Process Instrumentation and Controls are included in Section 13600.

D. Surface Preparation and Shop Prime Painting are included in Section 09901.

R3310909 iiseo-i AR30568Q

1.03 SUBMITTALS

A. Copies of all materials required to establish compliance with these Specifications shallbe submitted. Submittals shall include at least the following:

1. Sets of certified shop drawings showing the exact layout dimensions of theequipment, including locations, size, details of fittings and connections, andanchor bolt .sizes and locations. Shop drawings shall be submitted in accordancewith Section 01300.

2. Descriptive literature bulletins and/or catalogs of the equipment.

3. The total weight of the equipment including the weight of the largercomponents.

4. A complete total bill of materials for all equipment.

5. Certifications that the equipment conforms to the design criteria specified herei n.

6. All requirements of the proposed equipment and accessories for air, electricity,etc., listing each such requirement according to pressure, temperature, andquantity.

7. Five sets of installation instructions.

8. All information required in Section 01170.

9. Documentation of the filter press manufacturer's ability to design and supply aneffective system, including descriptions of three existing systems designed andsupplied by the manufacturer, with references who may be contacted to verifyperformance.

R3310909 11360-2 AR305681


A. The Filter Press will be operated to dewater sludge created when metals are removedfrom contaminated groundwater by a chemical precipitation process. The operatingconditions are as follows:

Number of Units

Type of sludge

Days/Week of OperationDry weight of sludge

Approximate Daily volume of sludge

Approximate Volume of sludge per cycle

Filter Cake, minimum required concentrationFiltrate, maximum expected suspended solidsconcentrationTemperature of sludgeOperating PressureMaximum Cake Thickness

1.Metal Hydroxides, Biosolids, andBackwash sol ids

Filter

53,150 pounds per day maximum2,120 gallons @ 1 1 % solids to 12@ 3% solids

,100 gallons

1 ,060 gallons @ 1 1 % solids to 6,050 gallons@ 3% solids35 percent solids by weight

200 mg/L

ambient100 psig1.0 inches

1.05 QUALIFICATIONS AND QUALITY ASSURANCE

' A. The equipment to be furnished under this Section shall be furnished by a singlesupplier.

B. The supplier of equipment specified in this Section shall be the manufacturer of thefilter press. The equipment furnished shall be designed, constructed and installed inaccordance with the best practices and methods and shall operate satisfactorily wheninstalled as shown on the drawings.

C. The Filter Press shall be as manufactured by Edwards and Jones, or an approved equal.

D. Services of Manufacturer's Representative:

1. Provide services of factory-trained Service Engineer, specifically trained on thetype of equipment specified herein. The time requirements listed are for working

R3310909 1136°-3 AR305682

hours exclusive of travel time, and do not relieve the Contractor of the obligationto provide sufficient service to place equipment in satisfactory operation.

a. Installation, including assistance in the location of anchor bolts, setting andleveling of equipment, coordination of piping, electrical and miscellaneousutility connections as required, with a minimum of three 8-hour days.

b. Startup testing and calibration as required, with a minimum of five 8-hourdays per filter.



1.07 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. The press shall be assembled to the fullest possible extent at the time of delivery.

1.08 SPARE PARTS

A. One set of ail special tools and spare parts required for operation and maintenance ofthe Filter Press system, as recommended by the manufacturer, shall be provided inaccordance with Section 01170.

B. At a minimum, the following spare parts shall also be supplied with each of the twofilter presses:

1. One set of filter cloth media.

2. Five extra plates.

t3. One blind recessed-chamber plate.

R3310909 H360-4 AR305683

4. Electric spare parts in hermetically sealed, moistureproof, plastic containers,consisting of 100 percent spare fuses and indicating lights.

5. Three filter-cake paddles.

PART 2: PRODUCTS

2.01 GENERAL

A. The drawings and specifications are based on a particular arrangement of equipmentand piping; should the Contractor proposed to furnish equipment otherwiseacceptable to the Government Project Manager, the Contractor shall be responsible forall revisions necessary to incorporate the proposed equipment into the design, at nocost to the Government. The Contractor shall prepare detailed drawings of all revisionsto al.l affected Architectural, Structural, Mechanical, Instrumentation, HVAC, andPlumbing drawings embodying the proposed alternative equipment, for the reviewand approval of the Government Project Manager.

B. Use manufacturer's standard for equipment sizes not specified.

C. All equipment and components shall be furnished as complete assemblies with allinternal wiring, piping, valving, and control devices as necessary for the equipmentand/or system operation.

D. The Filter Press shall be designed for 100 psig operating pressure.

E. Brass or stainless steel nameplates giving the name of the manufacturer, and any otherpertinent data shall be attached to the press.

F. The manufacturer shall provide all motors.

R3310909 11360-5 AR3G568L*

2.02 MATERIALS

A. All necessary foundation bolts, plates, nuts, washers, and related hardware shall beType 304 stainless-steel unless otherwise specified or indicated.

B. Structural steel shall conform to ASTM A36. Iron castings shall conform to ASTM A48.Other materials shall conform to ASTM Specifications where such specifications exist;the use of material shall be based on continuous and successful use under similarconditions of service.

2.03 FILTER PRESS FRAME

A. The filter frame shall be of fabricated steel with a stationary head that is connected toa stationary tail by either two side-rail units protected by Type 304 stainless-steelside-rail covers and/or by an overhead beam assembly. The frame design shall beadequate to support its own weight, the weight of the filter plates, and the entireassembly when completely filled with sludge and pressurized to 100 psig fordewatering.

B. The stationary tail stand shall include a 4-inch sludge inlet port and four 2.5-inchfiltrate discharge ports. Sludge feed and filtrate discharge port connections shall be150-pound, flanged, 304 stainless steel.

2.04 RECESSED CHAMBER PLATES

A. Plates shall be recessed chamber type and shall have one sludge feed port in the centerand four filtrate discharge ports. One filtrate discharge port should be located in eachof the four corners of the plate.

B. The maximum size of the plates shall be 1,300mm.

C. The plates shall be able to withstand an operating pressure of 100 psig. Leakage shallnot be acceptable.

D. Cake discharge shall be by gravity to a container located beneath the press.

R3 310909 H360-6 A R 30 568 5

E. The filter plates shall be of polypropylene or other equivalent material, which isresistant to acids, alkalis, salts, and organic solvents.

F. Handles will be molded onto the plates for ease of handling. Bolted-on handles willnot be acceptable.

G. One blind plate with no sludge feed inlet or filtrate discharge outlets shall be provided.

2.05 FILTER CLOTH MEDIA

A. One complete set of cloths shall initially be provided for the press. After startup andsatisfactory performance of the cloths, one more complete set of cloths shall besupplied for the press.

B. The filter media shall be polypropylene with a monofilament warp, multifilament weft,and sateen weave. The porosity shall be 3-5 cfm/ft2.

C. Cloths will have a molded rubber neck at the sludge feed inlet and latex resin aroundthe edges of the cloth to prevent unraveling.

D. The material shall be of adequate strength to provide life in excess of 2,750 filter cycles.

E. The cloths will be secured to the filter plates with plastic stay bosses through stainless-steel grommets in the filter media.

F. One spare set of filter cloths shall be provided after it is determined that optimum cakerelease occurs with the above-specified filter media.

2.06 HYDRAULIC CYLINDE'R

A. Hydraulic cylinder(s) shall be provided to open and close the filter and to maintainclosure during operation. Sufficient movement shall be available to allow the sludgecakes to drop off of the plates and adequate room for dressing and maintaining theplates.

B. The hydraulic cylinder shall be arranged so that the piston and rod movements arehorizontal. The cylinder shall be designed for operation at 100 psig. In addition, all

R3310909 11360-7 SR305686

hydraulic piping and fittings shall be designed for not less than 100 psig operatingpressure.

C. The hydraulic power pack shall be designed to maintain closure of the filter plate stackduring the dewatering cycle and shall provide hydraulic power for moving the followerplate prior to and after plate shifting and cake release. The unit shall be completelyshop-assembled and piped. The unit shall be capable of furnishing a minimum psig tomaintain pressure on the hydraulic cylinder during the dewatering cycle.

D. All necessary controls, valves, pressure gauges, switches, and devices shall be beincluded.

2.07 SPLASH CURTAINS

A. Splash curtains shall be provided on both sides of the Filter Press.

B. A corrosion-resistant tubing framework shall be mounted on both sides of the filterpress from the filter head stand to the tail stand. The framework shall not interferewith the filter operation, plate shifting or removal, or plate washing.

C. The actual curtain shall be of heavy-duty nylon not less than 10 mils thick and shall beeasily removed from the framework. The curtains shall be hanged vertically withbottom weights. Color samples shall be submitted to the Government for theirselection.

*

2.08 LIGHT CURTAIN

A. Curtains shall be designed so a 2-1/2-inch object will break the beam. The light curtainshall be designed correctly so that dust, water vapor, errant light, or other anomalieswill not trip the device.

B. Gates with locks shall be installed on the side of the press which faces the wall toprevent workers from entering this area while the press is closing. Four sets of keyswith labels shall be provided.

C. A ripcord lanyard device shall be furnished to restart the plate shifting andopening/closing devices after interruption of the light curtain. The lanyard shall be

R3310909 11360-8 AR305687

mounted overhead and run the length of the operating side of the Filter Press. Theoperator must engage the ripcord for these devices to be reactivated.

2.09 AUTOMATIC PLATE-SHIFTING MECHANISM

A. The press shall be fitted with an automatic plate transport mechanism, which willindividually move the plates once the hydraulic cylinder is fully retracted.

B. The mechanism must be capable of squaring up misaligned plates before shifting tothe next plate in the stack.

C. The shifter shall not jam or drop plates.

D. The plate shifter shall be fully automatic, with the operator stopping the motion, if sodesired, to look at the plate during the discharge of the filter cake.

2.10 BOMB BAY DOORS

A. Bomb-bay doors shall be provided for the press. These doors shall run the full length ofthe filter press plate set and shall be designed to collect any weepage during thefiltration cycle. At the completion of the dewatering cycle, the doors will automaticallyopen so that the filter cakes can fall by gravity to the disposal containers.

B. The 304 stainless-steel doors shall be pitched towards a stainless-steel drip troughlocated along the side of the press to collect the excess runoff. A removable catchbasket at the outlet of the drip trough shall also be provided.

C. The bomb bay doors shall be designed to seal the gap between the edge of the flooropening and the lower side of the bomb bay doors. No leakage shall be permitted.

D. The control of the doors shall be integrated into the control panel of the filter presses.The filter cake shall not be discharged when the door is closed under the filter press.An electric motor shall open and close the doors. The motor shall be an explosion-proof design; TEFC, Class I, Division 2, Group D.

R3310909 11360-9 AR305688

E. The Filter Press manufacturer shall provide the following submittais:

1. Method of sealing the bunker when the door is withdrawn from under the filterpress.

2. Method of draining.3. Supports for the sliding tray.

2.11 CORE BLOW

A. Each press shall be provided with all necessary piping, air hoses, valves, etc., for centercore blow-out.

B. The connection for compressed air supply to the press shall be rigidly mounted andeasily accessible on the frame of the unit. A check valve and pressure gauge shall beprovided at the compressed air inlet.

C. The core blow shall be performed by the filter press panel logic. At the completion ofthe core blow, the press control logic shall sense that the core has been cleared andthat the filter press internals are under no pressure. At that point, the core blowoperation shall be automatically terminated.

D. Core blow system shall be capable of operating from a 100 psi air supply. Airrequirement for the core blow shall not exceed 30 scfm.

2.12 FILTER PRESS CONTROLS

A. General

1. The manufacturer shall furnish under this specification a press-mounted localcontrol panel for the filter press. The manufacturer shall also furnish thenecessary interface software with the overall plant computer control system.

2. The control panel shall contain the necessary motor starters, control relays, timers,status-indicating lights, pushbuttons, and other devices necessary to provide thecorrect operating sequence. All enclosures, controls, press wiring, limit switches,etc.,shailbeNEMA4.

R3310909 11360-10 AR305689

3. Functional Description

The Filter Press unit shall be designed for the following operation: At theinitiation of the cycle, the associated Filter Press Feed Purrip shall be manuallystarted as specified in Section 11313 and shall begin to fill the press. When thefeed cycle is completed, as indicated by the timer, the pump shall be automaticallyshut down by a signal from the filter press control panel. The core blow sequenceshall be manually initiated and stopped from the Filter Press control panel. At thecompletion of the core blow sequence, an alarm shall sound indicating cyclecomplete. Pushing an "Open Filter" pushbutton shall start the retraction of thehydraulic cylinder, the opening of the bomb-bay doors, and the shifting of theplates. The press shall then automatically return to its original position and beready to receive sludge for a new cycle.

4. The control panel shall be suitable for operation on a 480-volt, 3-phase, 60-hertzpower supply. Each control panel shall be provided with a main circuit breakerdisconnect, and a control power transformer for 120-volt control power.

5. The panel shall be mounted on the Filter Press.

6. Panels and included instruments shall be U.L. listed and shall comply with allapplicable requirements of Section 13600, and shall be factory installed andwired.

7. Field wiring shall be performed under Division 16, except where pre-wired factoryassemblies are required or otherwise employed.

8. Dry contacts for running status and Filter Press Feed Pump shutdown shall beprovided.

R3310909 11360-n . SR3Q5690

B. Operator Controls

1. All controls mounted on the face of the panel shall have suitable nameplates sothat the function of the device is clearly understood.

2. Provide the following door-mounted controls:

a. Start pushbuttonb. Emergency stop pushbuttonc. Open filter pushbuttond. Red run pilot lighte. Green off (ready) pilot lightf. Cycle complete indicating light

2.13 MISCELLANEOUS

A. Four filter cake paddles shall be provided to aid in dislodging cake from the filtermedia. Paddles shall be lightweight and corrosion-resistant. Two of the paddles shallbe 60 inches in overall length and two shall be 24 inches in overall length.

B. Provide pressure indicating gauges for each of the sludge feed inlets. The gauges shallbe calibrated from 0-150 psig. The gauges shall have a 6-inch face with a solderedbronze Bourdon tube and brass socket. Each gauge shall be furnished with adiaphragm seal suitable for use with a sensing fluid-filled gauge.

PARTS: EXECUTION


A. The Contractor shall furnish the services of a Service Engineer during the period ofinstallation to inspect and supervise the installation of equipment and supervise testingof the equipment. Such required activities shall not be undertaken without thepresence of a qualified Service Engineer.

B. The Contractor shall coordinate the testing of the equipment specified herein with thetesting of other Contractor-furnished equipment.

R3310909 1136°-12 AR30569I

C. Following completion of installation by the Contractor of this equipment and all otherequipment that may affect performance, a demonstration test shall be performedsimulating actual operating conditions using chemicals and water. Adjustments shallbe made until the operation of the equipment is satisfactory to the Government.

D. If the equipment performance does not meet the specifications, corrective measuresshall be taken by the Contractor, or the presses shall be removed and replaced with apress which satisfies the conditions specified.

3.02 INSTALLATION

A. Installation shall be in strict accordance with the manufacturer's instructions andrecommendations in the locations shown on the drawings. Anchor bolts shall be set bythe contractor in accordance with the manufacturer's recommendations.

3.03 SURFACE PREPARATION AND SHOP PAINTING

A. All surfaces shall be prepared and shop-primed as part of the work under this section.Surface preparation and shop priming shall be as specified in Section 09901.

END OF SECTION

R3310909 1136°-13 AR305692

SECTION 11365BIO-OXIDATION TOWERS

BT-1TOBT-3

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish ail labor, materials, equipment, and incidentals required to install completeand ready for operation the Bio-oxidation Towers as indicated on the drawings andas-specified herein.

1.02 , RELATED WORK NOT INCLUDED

A. Concrete work is included in Division 3.B. Electric work is included in Division 16.C. Instrumentation is included in Division 13.D. Centrifugal pumps are included in Section 1 1312.E. Positive-displacement blowers are included in Section 1 1371 .F. Equipment insulation is included in Section 1 5250.

1 .03 DESCRIPTION OF SYSTEM

A. Three (3) Bio-oxidation Towers shall be provided for the purpose of biodegradingacetone from an average influent concentration of 1 1,200 ug/L to the effluent limit of665 yg/L. Three towers will be operated in parallel. During periods when one tower isbeing backwashed, each of the remaining two towers will be required to handle half ofthe total flow. Total flow may range from 200 gpm to 650 gpm, with 630gprnexpected to be the average.

B. Packing media shall consist of a 1-foot layer of module packing media manufactured byMunters (BlOdek® 30060) or approved equal. Random dump packing media will beplaced upon the module packing media to a depth of 15 feet. The random dumppacking media shall be manufactured by Cascade International (Filterpak® YTH1 120R/M) or approved equal.

R3310909 11365-1 AR305693


A. All of the equipment furnished under this section shall be supplied by a manufacturerwho is fully experienced, reputable, and qualified in the design and manufacture ofthe system components to be furnished. The equipment shall be designed,constructed, and delivered in accordance with the best practices and methods and shalloperate satisfactorily when installed as shown on the drawings and as recommendedby the manufacturer.

B. The Bio-oxidation Towers manufacturer shall submit and follow quality controlprocedures adequate to ensure that all fabrication complies with these specification.Quality control shall include a final inspection by the manufacturer and the submittalof a written record of this final inspection.

C. The Bio-oxidation Towers manufacturer shall be Lancy International or approvedequal.

1.05 SUBMITTALS

A. Submit the following to the Government Contracting Officer in accordance withSection 01300.

1. System flow schematic drawing indicating line sizes, valving, and connections.

2. Vessel fabrication drawings.

3. Detailed dimensioned drawings of all Contractor internals.

4. Operating weight of major system components.

5. Pressure drop through the system at the maximum process flow rate and duringbackwashing.

R3310909 11365-2 AR3Q569U

6. Documentation of the Bio-oxidation Tower manufacturer's ability to design andsupply an effective system, including descriptions of two existing systemsdesigned and supplied by the manufacturer, with references who may becontacted to verify performance.

7. Structural design computations for bio-oxidation towers, platforms, ladders andsupports.

B. The Government review does not in any way relieve the Contractor of his responsibilityfor the accuracy and completeness of his details and design.


A. Operating and maintenance instructions shall be furnished as specified inSection 01170.

B. A factory representative who has complete knowledge of proper operation andmaintenance shall be provided for five 8-hour days to inspect the installed equipmentand to instruct representatives of the Government on proper operation andmaintenance.

t




PART 2: PRODUCTS

2.01 GENERAL

A. These specifications are intended to give a description of what is required, but do notcover all details, which may vary in accordance with the exact requirements of theequipment as offered. Any additional equipment necessary for the proper operation

R3310909 11365-3 AR305695

of the proposed installation not mentioned in these specifications, nor shown on thedrawings, shall be furnished and installed.


C. The Bio-oxidation Towers shall be rigidly and accurately anchored into position, and allnecessary foundation bolts, plates, nuts, and washers shall be furnished and installed.It shall be the responsibility of the equipment manufacturer to determine the number,size, and location of all anchor bolts to be set in concrete, and to supply them.

D. The equipment furnished for each Bio-oxidation Tower shall include but not be limitedto the following:

1. Bio-oxidation Towers ,2. Tower internals3. Packing media4. Piping, valves, and appurtenances5. Access ladders and platforms6. Spray insulation for bio-oxidation towers and jacketing for piping insulation7. Hangers and supports for piping and valves

E. Design of each Bio-oxidation Tower shall be based on the following parameters. Thoseparameters shown with an (*) have been tentatively identified for meeting therequired performance and must be verified by the equipment supplier.

R3310909 11365-4

AR305696

Maximum Liquid Flow Rate

Minimum Liquid Flow Rate

Average Liquid Flow Rate

Tower Diameter (*)Tower Height (*)

Influent Acetone ConcentrationRequired Effluent Limit

Process Blower Capacity (*)Backwash Water Flow Rate (*)

Backwash Air Flow Rate (*)Water Tern perature

325 gpm65 gpm210 gpm

21 feet24 feet

11,200'yg/L665 yg/L

250scfm@12psig630 gpm

500 scf m

54°F

F. The Bio-oxidation Towers shall be designed to safely withstand structural loadsencountered during construction, operation, cleaning, and testing. The towers shall bedesigned for earthquake loads by the fixed percentage method, seismic Zonel, inaccordance with AWWAD-105-87 with the exception that earthquake and windloadings shall not be assumed to act simultaneously. The design shall be governed bythe more critical of the load conditions, either earthquake loading or wind loading.Snow loading of 20 pounds per square foot shall be used.

2.02 BIO-OXIDATION TOWERS

A. The Bio-oxidation Towers shall be constructed of carbon steel with interior and exteriorpermaglass coating. Wall thickness, base anchor ring dimensions and anchoringhardware shall be sufficient to withstand all structural loads indicated above and shallbe as required by ASME code, Section 8, Division 1.

*

B. Anchoring hardware shall be constructed of 304 stainless steel.

C. The towers shall be of circular cross-section and shall be 21 feet inside diameter.

D. The towers shall be of sufficient height for tower internals, packing media, and accessports as specified herein and as shown on the drawings.

R3 310909 11365-5 AR305697

E. One 24-inch diameter hinged access ports shall be provided, located as shown on thedrawings. Access ports shall be designed to be water and vapor tight and to withstandall loads and internal pressure during construction and operation.

F. The towers shall be provided with the following nozzle connections, located as shownon the drawings:

1. 4-inch air inlet2. 6-inch liquid inlet3. 8-inch liquid outlet4. 10-inch overflow5. 16-inch vent6. 2-inch sampiing port (2)

G. All nozzle connections 3 inches and larger shall be provided with ANSI standard,150-pound, carbon-steel flanges. Nozzle connections 2 inches and smaller shall beprovided with NPT threads.

2.03 TOWER INTERNALS

A. Support system for packing media shall be epoxy-coated carbon steel.

B. Packing Media. The modular packing media shall be BlOdek® 30060 manufactured byMunters, or an approved equal. The modular packing media shall be placed in a 1-footlayer.

1. The modular packing media will be constructed of poiyvinyi chloride (PVC).

C. The random dump media shall be Filterpak® YTH1120 manufactured by CascadeInternational, or an approved equal. The random dump media shall be placed uponthe modular packing media to a depth of 15 feet.

1. The random dump media shall be constructed of polypropelene and shall have adiameter of approximately 7 inches.

AR305698

D. Both the modular packing media and the random dump media shall have a minimumspecific surface area of 30 ft2/ft3.

E. The air distribution system shall consist of a series of air manifold headers and lateralsto evenly distribute 250scfm during typical operation and SOOscfm duringbackwashing procedures. The air distribution system shall provide fine bubbles forbetter air-water transfer rates. The air distribution piping shall be constructed of304 stainless steel.

F. The influent manifold will be sized to handle a maximum process flow of 325 gpm anda backwash flow of 630 gpm. The distributor will be designed to provide evendistribution of flow and avoid shortcircuiting. The influent distribution system shall beconstructed of 304 stainless steel.

2.04 PIPING, VALVES, AND APPURTENANCES

A. Piping shall meet all requirements of Section 15066.

B. All necessary supports for the piping and valves associated with the Bio-oxidationTowers shall be provided and shall conform to the requirements of Section 15140.

2.05 LADDERS AND PLATFORMS

A. Each Bio-oxidation Tower shall be provided with one platform with access ladders, asshown on the drawings. Each platform shall be 4-1/2 feet wide and fabricated fromaluminum.

B. Platforms shall be designed to support a uniform live load of 150lbs per square footplus the dead load of the structure.

C. The ladder and platform system shall be designed, fabricated, and installed to meet allapplicable OSHA requirements.

D. The ladders shall have non-slip rungs which are a minimum of 3/4 inches in diameterand 16 inches long. The distance between rungs shall not exceed 12 inches.

E. The ladders and platforms shall be bolted to the towers.

R3310909 11365-7 AR305699

F. All fastening bolts shall be stainless steel.

G. Handrails and toeboards conforming to applicable OSHA requirements shall beprovided on all sides of the platform. Handholds shall be provided for stepping fromthe ladders to the platforms.

PARTS: EXECUTION



B. All parts shall be preassembled to the largest extent possible, compatibJe withtransportation limitations and equipment protection considerations. Field assembly, ifany, shall require merely bolting together of matchmarked components.

C. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe units and equipment are ready for operation. Finished iron or steel surfaces shallbe properly protected to prevent rust and corrosion.


E. The plastic bio-oxidation media shall be stored away from excessive heat, sun radiation,and physical damage.

3.02 INSTALLATION

A. Installation of equipment shall be in strict accordance with the manufacturer'sinstructions and recommendations. Nozzles or other fittings shall not be used forlifting.

R3310909 11365-8 AR305700


A. The services of a manufacturer's representative who has complete knowledge ofproper operation and maintenance shall be furnished for a period of five (5) workingdays to inspect the final installation and to supervise test runs of the equipment.

B. Towers shall be hydrostatically tested for leaks by filling with water up to the effluentliquid nozzle. Equipment shall be checked for leaks after it has been filled for at leastone hour.


END OF SECTION

R3310909 11365-9 AR30570I

SECTION 11371POSITIVE DISPLACEMENT BLOWERS AND APPURTENANCES

AB-1TOAB-9

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to install PositiveDisplacement Blowers complete with accessories and appurtenances necessary to makethe equipment, when installed, complete and operable, as specified herein and asshown on the drawings.


A. Concrete, including setting of anchor bolts, is included in Division 3.B. Painting is included in Division 9.C. Process instrumentation and controls are included in Section 13320.D. Electrical field wiring is included under Division 16.


A. Two blowers, including one spare, will be used to supply oxygen to the IronOxidation/Precipitation Tank for the purpose of oxidizing iron and manganese.Outside air will be drawn into the blowers through a filter and silencer and will bedischarged to the bottom of the Iron Oxidation/Precipitation Tank through a spargerring.

. B. Five blowers, including two spares, will be provided to supply process air andbackwashing air requirements to the Bio-oxidation Towers. Three blowers will be usedfor process air. The remaining two blowers will function as spares and for backwashingprocedures, which requires that two blowers operate for one bio-oxidation tower.Outside air will be drawn into the blowers through a filter and silencer and will bedischarged to. the bottom of the Bio-oxidation Towers through a network of airdistribution piping.

R3310909 11371'1 AR305702

C. Two blowers, including one spare, will be used to deliver air for the scouring of theDeep-bed Filters. Outside air will be drawn into the blowers through a filter andsilencer and will be discharged to the bottom of the filter to be scoured through anetwork of underdrain perforated pipe.

1.04 QUALIFICATIONS

A. All equipment described in this section shall be supplied by a single manufacturer whois fully experienced, reputable, and qualified in the manufacture of the systemcomponents to be furnished. The equipment shall be designed, constructed, anddelivered in accordance with the best practices and methods.

B. The Positive Displacement Blowers shall be manufactured by Sutorbilt or approvedequal.

1.05 SUBMITTALS

A. Submit the following in accordance with Section 01170.

1. Literature and shop drawings describing the blowers, filters, and silencers, andshowing all important details of construction and dimensions.

2. Shop drawings to include the following:

a. Materials of construction.

b. Details of construction.

c. Dimensions.

d. Anchor bolt locations.

e. Total weight of equipment including the weight of all major items or

components.

R3310909 11371-2 AR305703

f. Preliminary blower performance data including performance curves, inletcapacity, inlet pressure, brake horsepower, blower and motor speed, surgeconditions, static efficiency, and total efficiency.

g. Sound power levels, with and without acoustical treatment, in decibels ineach of the eight octave bands at the blower inlets outlet and through theblower casing when operating a design conditions in accordance with AMCABulletin 300, Recommended Practice for Sound Testing of Air Moving Devices.

3. A complete bill of materials for all equipment.

4. Description of surface preparation and shop prime paint.

5. All the requirements of Section 01170.


A. Operating manuals covering instructions and maintenance sheets of each type ofequipment supplied shall be furnished as specified in Section 01170.


A. All special tools required for manual operation, adjustment, and maintenance shall befurnished with the equipment.

B. All spare parts, as recommended by the manufacturer in the manufacturer's operationand maintenance manual, shall be furnished with the equipment.

C. All tools and spare parts shall be packed in containers which are clearly identified as totheir contents. All items shall be suitably packed and protected for long periods ofstorage in accordance with the requirements of the Section 01170.

R3310909 11371-3 AR30570U

PART 2: PRODUCTS

2.01 GENERAL

A. These specifications are intended to give a general description of what is required, butdo not cover all details, which may vary in accordance with the exact specifications ofthe equipment as offered. They are, however, intended to cover the furnishing,delivery, installation, and field testing of all materials, equipment; and apparatus asrequired. Any additional auxiliary equipment necessary for the proper operation ofthe proposed installation not mentioned in these specifications, or shown on thedrawings, shall be furnished and installed.

B. The material covered by these specifications is intended to be standard equipment ofproven ability and as manufactured by reputable concerns having experience in theproduction of such equipment. The equipment furnished shall be designed,constructed, and installed in accordance with best practice and methods and shalloperate satisfactorily, when installed as shown on the drawings.

C. All equipment shall be designed and proportioned to have liberal- strength, stability,and stiffnessand to be especially adapted for the intended service.

D. Blower bases shall be rigidly and accurately anchored into position and all necessaryfoundation bolts, plates, nuts and washers shall be furnished and installed by theContractor. The equipment manufacturer shall indicate the number, size, and locationof ail anchor bolts to be set in concrete.

E. Brass or stainless-steel nameplates giving the name of the manufacturer, modelnumber, the rated capacity, head, speed and any other pertinent data shall bepermanently attached to the blower.

F. Brass or stainless-steel namepiates giving the name of the manufacturer, serial number,model number, horsepower, speed, voltage, amperes, and other pertinent data shallbe permanently attached to the motor.

G. All drive units shall be factory mounted on a common baseplate with the blower.

H. Motors shall beTEFCand shall conform to all requirements of Section 16150.

R3310909 11371-4 AR305705

2.02 POSITIVE DISPLACEMENT BLOWERS

A. Blowers shall have the following characteristics:

Design Capacity, (scfm)Discharge Pressure, (psig)Motor HPNumber of BlowersNumber of Blowers operatingOperating Time

IronOxidation

7510521

24 hours/day

Bio-oxidationTower

250122053

24 hours/day

FilterBackwash

40072021

1.0 hour/day

B. Blowers shall be horizontal or vertical-style, oil-free, rotary lobe, positive displacementunits with antifriction bearings, oil/grease lubrication, cast iron impellers, head platesand casing, alloy steel timing gears, extended drive shaft for V-belt drive, motor,sheaves, and steel belt guards.

C. Each blower shall be provided with the following accessories.

1. One V-beit drive consisting of blower sheave, motor sheave, belts and belt guards.

2. One inlet filter with weather head.

3. One inlet silencer.

4. One heavy duty, low-pressure drop check valve for installation in dischargepiping.

5. One wafer-type, manually operated butterfly valve for installation in dischargepiping.

6. Oneweighed-type pressure relief valve for installation in discharge piping.

7. Two flexible couplings for installation in the intake and discharge piping.

R3310909 11371-5 AR305706

D. The blowers shall be mounted on two structural steel supports bolted to a base plate.The steel supports shall feature elongated mounting holes for forward or reverseadj ustment of the blower frame with respect to the plane of the V-belts.

E. Blower motors shall be 1,750 RPM, 460V, 3 phase, 60 Hz energy efficient TEFC unitswith NEMA Class F insulation. Vendor shall verify horsepower requirement.

PARTS: EXECUTION



B. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe units and equipment are ready for operation.

C. Factory assembled parts and components shall not be dismantled for shipment unlesspermission is received in writing from the Government Contracting Officer.

D. Flange faces shall be protected from damage. All openings are to be covered toprevent entrance of dirt, water and debris.

E. Equipment must be mounted on skids or protective framework so constructed as toprovide for easy handling for fork truck or similar device and/or be provided withlifting lugs, cleats, etc., to permit handling by crane. Nozzles, manholes or otherfittings shall not be used for lifting.

3.02 INSTALLATION

A. Installation of equipment shall be in strict accordance with the manufacturer'sinstructions and recommendations in the locations shown on the drawings.Installation shall include furnishing the required lubricants for initial operation andone year of operation. The grades of oil and grease shall be in accordance with the

R3310909 11371-6 AR305707

manufacturer's recommendations. Anchor bolts shall be set in accordance with themanufacturer's recommendations.

B. The blowers, silencers, and ductwork shall be constructed and installed to avoid thegeneration of objectionable noise or vibration when operating at either design point.


A. After the blowers have been completely installed, the Contractor shall conduct, in thepresence of a Government representative, such tests as are necessary to indicate thatblower efficiency and discharge conform to the specifications. The Contractor shallsupply all labor and auxiliary equipment required to complete the field test.

B. If the blowers performance does not meet the specifications, corrective measures shallbe taken by the Contractor, or blowers shall be removed and replaced with units whichsatisfies the conditions specified. A 3-day operating test of the blowers will be requiredbefore acceptance.

END OF SECTION

R3310909 11371-7 AR305708

SECTION 11372INSTRUMENT AND SERVICE AIR SYSTEM

ISAS-1

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, material, equipment and incidentals required to install, ready foroperation rotary screw compressors and air receiver tanks, complete with motors,motor starters, control panel, and appurtenances as shown on the Drawings and asspecified herein.

B. All power and control wiring within the control panel which is to be connected toexternal wiring shall be wired to terminal boards under this Section and be inaccordance with the requirements of Division 16.


A. Instrument Air Drying System is included in Section 11373.B. Shop prime painting is included insertion 09901.C. Piping, valves, and supports are included under respective Sections of Division 15.D. Instrumentation Products is included in Section 13610.E. Electrical work, except as hereinafter specified, is included in Division 16.

1.03 SUBMITTALS

A. Submit to the Government Project Manager, shop drawings showing details offabrication and erection of all materials and equipment furnished under this section.

B. All information required in the Section 01170.

R3310909 11372-1 AR305709

in


A. All of the equipment specified herein is intended to be standard equipment for use iplant and instrument air systems.

B. The air compressor system shall include two electric motor driven, air-cooled, tankmounted, rotary screw compressors, one receiver tank and appropriate piping, valvesand appurtenances, including pressure switches, pneumatic control piping, and allother controls as specified herein and as shown on the Drawings.

C. The two tank-mounted, rotary screw, air compressors are to provide air for thegranular activated carbon transfer operations, for the automatic operation of thedeep-bed filter system, for the filter press operation, all air diaphragm pumps, andinstrument control for the Air Emission control system. The air compressor system shallbe designed to operate as follows:

• The units shall have dual automatic control systems.

• The inlet valve shall be smoothly modulated to respond to compressed airdemand.

• When the demand drops to less than 30 percent of capacity, the control systemshall automatically switch to a load/no load control system.

1.05 QUALIFICATIONS

A. All of the equipment specified under this Section shall be furnished by a singlemanufacturer and shall be products of a manufacturer regularly engaged in theproduction of such equipment. The manufacturer shall have the sole responsibility forthe proper functioning of ail equipment furnished.

B. The air compressor system shall be manufactured by Compair-Kellogg Services orapproved equal.

R3310909 11372-2 SR3057IO


A. Operation manuals covering instruction and maintenance sheets on each type ofequipment supplied shall be furnished to the Government Project Manager as providedin the Section 01170. The instructions shall be prepared specifically for this installation.

1.07 EXTRA STOCK

A. Tools: One set of special tools for normal maintenance shall be furnished inaccordance with the requirements of the Section 01170.

B. Spare Parts: Spare parts shall be furnished as recommended by the equipmentmanufacturer under this Section.

PART 2: PRODUCT

2.01 AIR COMPRESSORS

A. Compressor shall be tank mounted and of the single-stage, asymmetrical profile, rotaryscrew type, furnished with sealing strips and thrust balance pistons for each rotor. Therotors shall be cooled and lubricated by a positive flood of cooling oil. Each compressorshall deliver not less than 120 scfm of free air when the intake pressure is 14.7 psia andthe discharge pressure is 120 psig.

B. Each compressor shall be supplied with the following safety protective devices:automatic blowdown valve, discharge minimum pressure/check valve, total closureinlet valve, high-pressure shutdown switch, and high-discharge temperature switch.

C. Each compressor shall be supplied with the following instrumentation: line pressuregauge, oil filter pressure drop indicator, air filter pressure drop indicator, hour meter,and oil-level sight glass.

D. A common air and oil cooler shall be supplied with each compressor. Cooling air shallbe drawn through the cooler by a fan driven directly by the compressor motor. Athermal bypass valve shall be supplied to maintain proper operating temperature.

R3310909 11372-3 AR3057I I

E. An oil separator shall be provided. Air shall be forced through the separator, removing95 percent of the lubricant from the air stream. An efficient filter located in theseparator shall remove the remainder of the lubricant to less than 5 ppm carry-over.

F. A sound attenuation enclosure shall be provided with each compressor. The enclosuresshall be specifically designed for use on the compressor with lift off panels to provideeasy access for maintenance. The noise level shall be reduced to 85 dBa when tested inaccordance with CAG1-PANEUROP Test Code.

2.02 DRIVE MOTORS

A. Electric motors shall be 30 HP, 1,800 RPM, TEFC, and shall conform to all requirementsof Section 16150.

2.03 AIR RECEIVER

A. The air receiver shall be horizontal, 250 gallons, and suitable for mounting the aircompressors on top.

B. The air receiver shall be ASME Code stamped for 200 psi. The operating pressure of theair receiver shall be 120 psig.

2.04 LOCAL PAN EL

A. The compressors shall be furnished with a local panel in a NEMA-4 enclosure. Thecontrol panel shall contain a main circuit breaker disconnect with external flange-mounted operating handle, a control transformer, the compressor motor starters, andail necessary switches and relays required for proper operation.

B. The compressor control panel shall be suitable for operation on a 480-volt, 3-phase,60-Hertz power supply.

*

C. The following door-mounted operator controls and indicators shall be provided:

1. Lead-lag selector switch2. On-Auto-Off switch3. Status indication light

R3310909 11372-4 AR3057I2

4. Fault indication light5. Fault reset button

D. All controls shall be factory wired.

2.05 ACCESSORY EQUIPMENT '

A. An intake silencer shall be provided with each compressor.

B. Shut-off valves shall be of the globe type with cast-iron body and copper-nickel discand seat.

C. Check values shall be of the cushioned type.

D. The high-pressure air system shall be furnished complete with all pressure switches,fittings, and appurtenances required for the control of the compressor operation.

PARTS: EXECUTION

3.01 INSTALLATION

A. Installation of the compressors, filters, silencers, and appurtenances shall be in strict• accordance with the manufacturer's recommendations and instructions in the locations

as shown on the drawings. Installation shall include furnishing the required oil andgrease for initial operation. The grades of oil and grease shall be in accordance withthe manufacturers recommendations.

B. Anchor bolts of Type 316 stainless steel shall be furnished by the equipmentmanufacturer and set by the Contractor in accordance with the manufacturer'srecommendations and setting Drawings.

3,02 PAINTING

A. Equipment shall be provided with manufacturer's standard prime and finish paint asapproved by the Government Site Representative. . Paint shall be capable ofwithstanding heat build-up generated by operating equipment without blistering,delamination, or other forms of failure.

R3310909 11372-s AR3057I3


A. The following shall be done by a qualified serviceman of the manufacturer of theequipment and accessories supplied at no additional cost to the Government.


2. Checkout: Placing the equipment into operation, field calibration, and makingnecessary adjustments.

3.04 INSPECTION AND FIELD TEST

A. After installation of all equipment has been completed, and as soon as conditionspermit, there shall be conducted an acceptance test under actual operating conditions,to determine that the operation is satisfactory and free from excessive vibration. Thetest shall consist of 8 hours of operation during which time the base load shall becarried by each compressor for a period of 3 hours with the second unit operating onautomatic start and stop control. The final 2 hours of the test shall be conducted withboth compresors operating on alternating automatic start and stop control. TheContractor shall submit for the Government Site Representative's approval a copy ofthe proposed log sheet on which shall be recorded all pertinent data. Readings andrecordings shall be taken and recorded at 30-minute intervals over the 8-hour testperiod.

B. Noise and vibration tests shall be conducted to ensure that the noise-level door notexceed 85dBa and that there is no harmful vibration in either compressor or in thesystem piping.

END OF SECTION

R3310909 11372-e AR3057U

SECTION 11373INSTRUMENT AIR DRYING SYSTEM

IAD-1

PART 1: GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to install a ready-for-operation Instrument Air Drying System complete with pre-air and post-air filters andtwin-tower heatless regenerative desiccant dryer, as shown on the drawings andspecified herein.


A. Piping valves and supports are included under respective sections of Division 15.B. Instrumentation products are included insertion 13610.C. Instrument and Service Air system is included insertion 11372.

1.03 SUBMITTALS

A. Submit to the Government Contracting Officer shop drawings, showing details offabrication and erection of all materials and equipment furnished under this Section.

B. All information required insertion 01170.


A. All of the equipment specified herein is intended for the filtration and drying ofcompressed air for instrument use.

B. The Instrument Air Drying System shall include one pre-air filter, one twin-towerheatless regenerative desiccant air dryer, and one compressed-air post filter.

R3310909 11373-1 AR3057I5

C. The twin-tower air dryer will be automatically regenerated on a time-cycle basis foruninterrupted flow of dry air to the instrument use.

1.05 QUALIFICATIONS

A. All of the equipment specified under this Section shall be furnished by a singlemanufacturer and shall be products of a manufacturer regularly engaged in theproduction of such equipment. The manufacturer shall have the sole responsibility forthe proper functioning of all equipment furnished.

B. The instrument air dryer shall be as manufactured by Kaeser or an approved equal.


A. Operation manuals covering instruction and maintenance sheets on each type ofequipment supplied shall be furnished to the Government Project Manager as providedin the Section 01170. The instructions shall be prepared specifically for this installation.

B. Factory representatives who have complete knowledge of proper operation andmaintenance of the equipment shall be provided for a total of one 8-hour day toinstruct representatives of the Government on proper operation and maintenance,startup, shutdown, troubleshooting, lubrication, and safety of the equipment.

1.07 EXTRA STOCK

A. Tools. One set of special tools for normal maintenance shall be furnished in accordancewith the requirements of Section 01170.

B. Spare Parts. Spare parts shall be furnished as recommended by the equipmentmanufacturer under this Section.

PART 2: PRODUCT

2.01 AIR FILTERS

A. The pre-air and post-air filters shall be designed to remove liquid, aerosols, rust, scale,dirt, and other particles 1 u and larger from the instrument air stream. The pre-air filter

R3310909 11373-2 AR3057I6

unit shall protect the air dryer desiccant beds, and the post-air filter unit shall protectthe downstream instrument from desiccant fines.

B. The pre-air and post-air filters shall be of the cartridge type. Filters shall be constructedof several layers of glass fibers in an in-depth arrangement with a high percentage ofvoid space to allow maximum accumulation of particles and resist clogging due tosticky and gummy residues.

C. The pre-air and post-air filters shall have a minimum capacity of 40 scfm and 120 psig.

2.02 AIR DRYER

A. The air dryer shall be designed to remove moisture from the instrument air. Dryinstrument air shall have a maximum dew point of -40°F at 120 psig. The minimumcapacity of the air dryer shall be 40 scfm at 120 psig.

B. The air dryer shall be of the twin-tower, regenerative desiccant type. Dessicant shall beactivated alumina. One desiccant tower shall be operating at any one time with theother either regenerating or standing by. Tower switchover will be automaticallyregulated by a timer adjustable from 4 to 10 minutes.

C. Each tower shall operate in an upflow mode and shall be designed for a maximum airvelocity of 60feet per minute to prevent desiccant fluidization and to provide aminimum air residence time of 4.8seconds. The desiccant bed shall be designed withsufficient extra material to counteract the effect of desiccant aging and to prevent thebreakthrough of the moisture and temperature fronts before tower switchover.

D. Each tower shall be equipped with an inlet and outlet air flow diffuser to preventchanneling through the unit. Maximum pressure drop through the air dryer shall be3 psig at design operating conditions.

E. Regeneration of each desiccant tower shall be effected in a downflow fashion to allowfor a rapid unit depressurization without fluidizing the desiccant bed.

F. The air dryer shall be prewired, prepiped, and mounted on a self-contained floor stand.A control box shall be furnished equipped with a power-on light and moistureindicator. Electrical construction shall be NEMA-1. Lifting lugs shall be provided.

R3310909 11373'3 AR305717

PARTS: EXECUTION

3.01 INSTALLATION

A. Installation of the air drying system shall be in strict accordance with themanufacturer's recommendations and instructions in the locations as shown on thedrawings. Installation shall include furnishing the required desiccant for initialoperation. The type of desiccant shall be in accordance with the manufacturersrecommendations.

B. Anchor bolts of Type 316 stainless steel shall be furnished by the equipmentmanufacturer and set by the Contractor in accordance with the manufacturersrecommendations and setting drawings.

3.02 PAINTING

A. Equipment shall be provided with manufacturer's standard prime and finish paint asapproved by the Government Site Representative. Paint shall be capable ofwithstanding heat build-up generated by operating equipment without blistering,delamination, or other forms of failure.


A. The following shall be performed by a qualified serviceman of the manufacturer of theequipment and accessories supplied.

1. Supervision. Checking the installation of all components before power is applied.

2. Check out. Placing the equipment into operation, field calibration, and makingnecessary adjustments.

&R3057I8R3310909 11373-4

3.04 INSPECTION AND FIELD TEST

A. After installation of all equipment has been completed, and as soon as conditionspermit, there shall be conducted an acceptance test under actual operating conditions,to determine that the operation is satisfactory. The test shall consist of 8 hours ofoperation, during which time the system will operate under design conditions.Frequency of switchover will be observed. Inlet and outlet air pressure shall berecorded on an hourly basis, and at least one dried air sample shall be collected andianalyzed for moisture content.

END OF SECTION

R3310909 11373-5 A R3 057 I 9

SECTION 11375AIR STRIPPER SYSTEMS

AS-1.AS-2

PART1: GENERAL

1.01 SCOPE OF WORK

A. Furnish ail labor, materials, equipment, and incidentals required to install completeand ready for operation two Air Stripper Systems, as shown on the drawings and asspecified herein.


A. Centrifugal pumps are included inSection 11212.B. Instrumentation products are included in Section 13610.C. Equipment insulation is included insertion 15250.


A. Two Air Stripper Systems shall be provided for the purpose of removing volatile organiccompounds from the neargradient contaminated groundwater. Maximum influentconcentration of vinyl chloride, trans-1,2-dichloroethylene, trichloroethylene, andmethylene chloride are 13,600 ppb, 27,600 ppb, 13,400 ppb, and 2,900 ppb,respectively. Average influent concentrations, of vinyl chloride, trans-1,2-dichloro-ethylene, trichloroethylene and methylene chloride are 4,530 ppb, 9,200 ppb,4,470 ppb and 970 ppb, respectively.

The Primary Air Stripper System (AS-1) shall be designed to remove vinyl chloride fromits maximum concentration of 13,600 ppb down to 1.0 ppb. Other volatilecontaminants of concern will also be reduced to to approximately 337 ppb for trans-1,2-dichloro-ethylene, 79 ppb for trichloroethylene, and 982 ppb for methylenechloride.

R3310909 11375-1 AR305720

The Secondary Air Stripper System (AS-2) shall be designed to remove residualmethylene chloride to 5 ppb. Because methylene chloride is the most difficult of thefour volatile organic compounds to air strip, the vinyl chloride, trans-1,2-dichloroethylene and trichloroethylene concentrations of the Secondary AirStripper effluent area expected to be equal or lower than the 0.2 ppb, 70 ppb, and4.0 ppb discharge limitations.

B. Packing media shall be 2-inch-diameter, polypropylene "Tripacks" as manufactured byJaeger Inc., Fountain Valley, California, or Delta SH as manufactured by Delta CoolingTowers Inc. of Fairfield, New Jersey, or approved equal. Because of the varying masstransfer and flooding properties of different packings, only elements withcharacteristics substantially similar to that of the 2-inch-diameter, polypropylene,Jaeger "Tripack" or Delta SH will be acceptable.


A. " All of the equipment furnished under this section shall be supplied by a manufacturerwho is fully experienced, reputable, and qualified in the design and manufacture ofthe system components to be furnished. The equipment shall be designed,constructed, and delivered in accordance with the best practices and methods, andshall operate satisfactorily when installed as shown on the Drawings and asrecommended by the manufacturer.

B. The Air Stripper Systems shall be manufactured by Calgon Carbon Corporation or DeltaCooling Tower Inc. or approved equal.

C. The supplier shall be capable of providing references from two existing, successful, airstripper installations.

D. The Air Stripper Systems' manufacturer shall submit and follow quality controlprocedures adequate to ensure that all fabrication complies with these specifications.Quality control shall include a final inspection by the manufacturer and the submittalof a written record of this final inspection.

R3310909 11375-2 AR30572I

1.05 SUBMITTALS

A. Submit the following to the Government Contracting Officer in accordance with theSection 01170.

1. Literature and shop drawings describing the equipment and showing allfabrication details and dimensions.

2. Structural design computations for the stripping column, foundation bolts, columninternals, and accessories.

3. Hydraulic design computations for inlet distributor tray, demonstrating uniformwater distribution while providing for counter-current air flow.

« 4. Pressure drop through air demister and liquid distribution trays.

5. Documentation of the Air Stripper System manufacturer's ability to design andsupply an effective system, including descriptions of two existing systems designedand supplied by the manufacturer, with references who may be contacted to verifyperformance.

B. The Government Contracting Officer's review does not in any way relieve theContractor of his responsibility for the accuracy and completeness of his details anddesign.


A. Operating and maintenance manuals shall be furnished as specified in Section 01170.

B. A factory representative who has complete knowledge of proper operation andmaintenance shall be be provided for three 8-hour days to instruct representatives ofthe Government on proper operation and maintenance.

R3310909 11375-3 AR305722




C. An extra 200 cubic feet of packing media shall be included among the spare parts.

PART 2 PRODUCTS

2.01 GENERAL

A. These specifications are intended to give a description of what is required, but do notcover all details, which may vary in accordance with the exact requirements of theequipment as offered. Any additional equipment necessary for the proper operationof the proposed installation not mentioned in these Specifications, nor shown on thedrawings, shall be furnished and installed.


C. The air stripping columns shall be rigidly and accurately anchored into position, and allnecessary foundation bolts, plates, nuts and washers shall be furnished and installed. Itshall be the responsibility of the equipment manufacturer to determine the number,size, and location of all anchor bolts to be set in concrete, and to supply them.

D. The equipment furnished for each Air Stripper System shall include, but not be limitedto, the following:

1. Stripping column2. Column internals3. Packing media4., Centrifugal Blowers5. Intake Filter

R3310909 11375.4 AR305723

6. Intake Silencer7. Piping, valves and appurtenances8. Access ladders and platforms

E. Design criteria for the Air Stripper Systems are as follows. Those criteria marked withan (*) have been tentatively identified for meeting the required removal efficiencies ofthe contaminants of concern and must be verified by the equipment supplier:

Maximum liquid flow rateMinimum liquid flow rateNumber of unitsColumn inside diameter*Maximum liquid loading rate*Minimum liquid loading rate*Air: liquid ratio*Minimum packing media bed depth*Normal operating temperature

Primary AirStripper •

AS-1650 gpm200 gpm

16 feet

23.0 gpm/ft27.1gpm/ft2

12:1 (volumetric)30 feet54°F

Secondary AirStripperAS-2

650 gpm200 gpm

17 feet

14.7gpm/ft26.0 gpm/ft2

50:1 (volumetric)30 feet54°F

F. Near-gradient groundwater characteristics are shown on Drawing0224-5D101.

G. The Air Stripper Systems shall be designed for the operating conditions describedabove and for a cleaning procedure during each Air Stripper will be isolated and a1 percent sulfuric acid solution, or a 1 percent hydrochloric acid solution, or a 5 percentsodium hypochlorite solution will be recirculated throughout the system.

H. The Air Stripper Systems shall be designed to safely withstand structural loadsencountered during construction, operation, cleaning, and testing. The air strippingcolumns shall be free standing and supported entirely by anchoring and grouting to aconcrete base, and shall be compatible with the three dimensional constraintsindicated on the drawings. The columns shall be designed for earthquake loads by thefixed percentage method, seismic Zone 1, in accordance with AWWA D-100, with theexception that earthquake and wind loadings shall not be assumed to actsimultaneously. The design shall be governed by the more critical of the load

R3310909 11375-5 AR30572^

conditions, either earthquake loading or wind loading. Snow loading of 20 pounds persquare foot shall be used.

I. The Air Strippers Systems shall be designed and manufactured in accordance with thespecifications of the'AISC. Welding shall be designed and performed in conformancewith AWS standards.

2.02 STRIPPING COLUMNS

A. The stripping columns shall be constructed of fiberglass-reinforced plastic. Anchoringhardware shall be constructed of 316Lstainless steel. Wall thickness, base anchoringdimensions, and anchoring hardware shall be sufficient to withstand all structural

* loads indicated above and shall be as required by ASME code, Section 8, Division 1. Thecolumns and other fiberglass-reinforced items shall be manufactured of filament-wound fiberglass in accordance with ASTM D-3299 standard specification entitled"Fiberglass-Wound Glass-Fiber-Reinforced Thermoset Resin Chemical-Resistant Tanks"and NBS PS-15-69 for hand lay-up items. All plastic material shall be manufacturedwith a corrosion-resistant, bisphenol-A, polyester resin such as Allac 4010 or equal. Thematerials shall also be resistant to 1 percent sulfuric acid, 1 percent hydrochloric acid, or5 percent sodium hypochlorite solution, which may be used for cleaning.

B. The primary and secondary columns shall be of circular cross-section and shall be 6 feetand 7 feet inside diameter, respectively.

C. The top of the columns shall be bolted on, so as to provide access to column internalsfrom above.

D. The base of the columns shall function as a sump with a minimum liquid depth of3-1/2 feet. The air inlet nozzle invert shall be located a minimum of 2 feet above theliquid level of the sump.

E. The columns shall be of sufficient height for internals, packing media, access ports, andliquid sump, as specified herein and as shown on the drawings.

R3310909 11375-6 AR305725

F. The columns shall be provided with the following nozzle connections, located as shownon the drawings.

Primary Air Stripper

1.2.3.4.5.6.

7.

8.

6-inch air inlet8-inch liquid inlet24-inch air outlet8-inch liquid outlet4-inch overflow3-inch siphon which allows the towerto be completely emptied.1-inch level transmitter mountingconnection1/2-inch sulfuric acid connection

Secondary Ai r Stri pper

1.2.

3.4.

5.6.

7.

8.

8-inch air inlet8-inch liquid inlet24-inch air outlet8-inch liquid outlet4-inch overflow3-inch siphon which allows the towerto be completely emptied.1-inch level transmitter mountingconnection1/2-inch sulfuric acid connection

G. All nozzle connections 3 inches and larger shall be provided with ANSI Standard,125-pound, stainless-steel flanges. Nozzle connections 2 inches and smaller shall beprovided with NPT threads.

H. Columns shall be provided with lifting lugs as necessary for easy handling with a craneor similar device during installation, maintenance, and replacement of tower internals.

2.03 COLUMN INTERNALS

A. All column internals shall be fiberglass-reinforced plastic with the exception of thedemister, which shall be polypropylene mesh.

B. The col u m ns shal I be provi ded with the fol I owi ng:

1. Two removable packing media support structures, located such that the packingmedia is divided into two equal segments. Media supports shall be removablethrough the access hatches. Each support structure shall be designed to supporthalf of the packing media, assuming a liquid hold-up of 0.042 cubic feet per cubicfeet of packing. The support structures shall be designed so that the maximumdeflection in the tray is less than 1/4 inch during operation. The support structuresshall induce a negligible air pressure drop and shall not impede liquid flow.

R3310909 11375-7 AR305726

2. Two removable liquid distributor trays designed for the air and liquid loadingsspecified above. Liquid distributor orifice shall be sized and located to provideeven liquid distribution across the packing media cross section. Air exhaust stacksshall be sized to provide a gas velocity not to exceed 30 feet per second. Onedistributor tray shall be located below the influent port, and the second shall belocated beneath the intermediate packing support structure, as shown on thedrawings.

3. Liquid redistribution rings as needed to maintain an even distribution of the liquidflow throughout the column cross section.

4. Removable air demisters shall be provided at the top of each tower to eliminatewater droplets in the exhaust air streams.

2.04 PACKING MEDIA

A. Packing media shall be 2-inch-diameter, polypropylene "Tripacks" as manufactured byJaeger Inc., Fountain Valley, California or Delta SH as manufactured by Delta CoolingTowers Inc., Fairfield, New Jersey, or an approved equal. Because of the varying masstransfer and flooding properties of different packings, only elements withcharacteristics substantially similar to that of the 2-inch-diameter, polypropylene,Jaeger "Tripack" or the Delta SH will be acceptable.

B. A minimum total packing depth of 30 feet shall be provided for both the primary andsecondary air stripping columns.

2.05 CENTRIFUGAL BLOWERS

A. Two centrifugal blowers shall be provided, including one uninstalled spare for each AirStripper System.

R3310909 11375-8 AR305727

B. Blower design characteristics have been tentatively identified as follows and must beverified by equipment supplier:

Description

Design Capacity, (scfm)

Static Pressure, (inches w.c.)Maximum Motor HP over entire curve

Primary AirStripperAS-1

1,00014

3.9 HP

Secondary AirStripperAS-2

4,200

14

15HP

C. The blowers shall be in accordance with standards adopted by AMCA for industrialfans. The blower manufacturer shall be licensed to bear the AMCA Certified Air RatingSeal. The fan wheels shall be dynamically balanced after construction. The entire fanassembly shall be given a final dynamic balance, and the final displacement shall besubmitted.

D. The housing shall be all welded heavy-gauge steel construction adequately braced forrigidity. Prior to shipment, blowers shall receive a shop prime coating both inside andout.

E. The blower wheel shall be of centrifugal, high-efficiency design. It shall be constructedof corrosion-resistant material or shall be epoxy-coated steel.

F. The inlet bell (flanged) shall be of the same materials as the housing. The bell shall bean integral part of the housing.

G. The housing shall be mounted on a steel support plate on the shaft end. An additionalplate may be furnished on the inlet end. Provision shall be made for removal of theblower wheel and shaft by removing the support plate. All portions of the plateexposed to the air being handled shall be protected by an epoxy coating. All structuralsteel used in the fabrication of structural steel members shall be in accordance with thelatest AISC "Specifications for the Design, Fabrication and Erection of Structural Steelfor Buildings." All welding shall conform to the latest Standards of the AmericanWelding Society.

R3310909 11375-9 AR305728

H. The blower shaft shall be of steel, of ample dimensions to minimize deflections. Ashaft seal of neoprene, bolted to the housing, shall limit the amount of gas leakagearound the shaft.

I. The blower shaft shall be supported by two grease-lubricated, self-aligning, rollerbearing, cast iron pillow blocks, for heavy-duty, industrial, critical duty. Bearings shallhave an Anti-Friction Bearing Manufacturer's Association minimum B-10life rating ofnot less than 300,000 hours at maximum normal operating load. Bearing pillow blocksshall be mounted with a two-bolt base.

J. The blower housing and shaft shall be mounted on a structural steel base.

K. The blowers shall be V-belt-driven. Sheaves shall be both statically and dynamicallybalanced and test-run at rated speed to assure vibration-free operation before leavingthe factory.

L. V-belts shall be heavy-duty design, in matched sets, with safety guard. The belt driveshall have a service factor of 2.0 when operating at maximum load. Belt protectionshall conform to OSHA requirements.

M. The manufacturer shall select and furnish suitable vibration isolation devices.

2.06 INTAKE FILTER

A. Filter shall be 2-inch-thick, framed filters with a face velocity not to exceed 300 fpm.Filter pressure drop for clean filters at 300 fpm face velocity shall be a maximum of0.15-inch WC. Filter shall have 35 percent efficiency on ASHRAE test standard 52-68.

B. Filter Box shall have tracks for the filter to allow filter replacement from either side.Sealing material shall be provided at tracks and ends to prevent air bypassing thefilters.

2.07 INTAKE SILENCER

A. Each blower shall be provided with a chamber-adsorption-type intake silencerconstructed of not less than 22-gauge galvanized steel. Acoustical insertion loss shallbe sufficient to limit noise level to 85 dBA or less within 5 feet of intake louvers, intake

R3310909 11375-10 AR305729

duct, and blowers, when tested in accordance with AMCA Bulletin 300, RecommendedPractice for Sound Testing of Air Moving Devices.

PARTS: EXECUTION



B. All parts shall be preassembled to the largest extent possible, compatible withtransportation limitations and equipment protection considerations. Field assembly, ifany, shall require merely bolting together of matchmarked components.

C. All parts shall be properly protected so that no damage or deterioration will occurduring a prolonged delay from the time of shipment until installation is completed andthe units and equipment are ready for operation. Exposed iron or steel surfaces shallbe properly protected to prevent rust and corrosion.

D. Flange faces shall be protected from damage. All openings are to be covered toprevent entrance of dirt, water and debris.

3.02 INSTALLATION

A. Installation of equipment shall be in strict accordance with the manufacturer'sinstructions and recommendations. Nozzles or other fittings shall not be used forlifting.

R3310909 , 11375-11 . ftR30573Q



B. Each air stripping column shall be hydrostatically tested for leaks by filling it with waterup to the influent liquid nozzle. Equipment shall be checked for leaks after it has beenfilled for at least one hour.


END OF SECTION

R3310909 11375-12 A R3 057 3 I

DIVISION 13

Special Construction

3̂10909 AR305732

SECTION 13121PRE-ENGINEERED METAL BUILDING

PART1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment, and incidentals required to design, fabricate,deliver to project site, and erect the pre-engineered metal building as shown on theDrawings and as specified herein.

. B. Material furnished shall include the structural framing, connections and anchor bolts;roofing, siding, gutters and downspouts; metal interior roof liner panels; doors,louvers, and roof penetrations; flashing, closures, column cover, fasteners, sealants,insulation; and all other components parts for a complete weathertight, exteriorenvelope. Building shall be fully insulated in walls and roof.

C. All materials shall be new, fabricated in a workmanlike manner, and free of defects.


^

A. Concrete foundations and setting of anchor bolts are included in Division 3.

1.03 SUBMITTALS

A. Submit to the Government Contracting Officer complete plans showing superstructurecolumn lines set to coordinate with concrete dimensions shown. Indicate also anchorbolt locations and foundation reactions in KIPS at all columns.

B. Submit product information, specifications, and installation instruction for allcomponents and accessories proposed.

R3310909 13121-1 AR305733

C. Submit shop drawings and complete erection drawings for review as provided inSection 01300, including:

1. Anchor bolt and base plate settings.2. Sidewall, end wall, and roof framing and bracing.3. Transverse cross sections and details of openings, covering, and trim.

1.04 QUALIFICATIONS

A. All of the equipment furnished under this section shall be supplied by a singlemanufacturer who is fully experienced, reputable and qualified in the manufacture ofthe system components to be furnished. The pre-engineered building shall bedesigned, delivered, and erected in accordance with the best practices and methods.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Deliver, store, and handle prefabricated components, sheets, panels, and othermanufactured items so they will not be damaged or deformed. Stack materials onplatforms or pallets, covered with tarpaulins or other suitable weathertight ventilatedcovering. Store metal sheets or panels so that water accumulations will drain freely.Do not store sheets or panels in contact with other materials which might causestaining.

PART 2 PRODUCTS

2.01 DESCRIPTION OF STRUCTURE

A. Columns and beams of rigid frame construction as primary structural supports asapproved providing clean inside height and width shown.

B. Bracing in sidewall, roof, and end wall bays shall be furnished and installed whererequired and approved to provide rigidity against wind loads.

C. Roofs with si opes as shown.

D. Overall dimensions of the building, number and length of bays as shown on theDrawings.

R3310909 13121-2 AR30573U

2.02 DESIGN CRITERIA

A. Primary and secondary members and their coverage shall be designed for all applicableloads and combinations of these loads as set forth in The BOCA National Building Code(1987) and as required by local building codes. The design loads for each building shallbe as follows:

1. Ground Snow Load: 20psf. (Drift on lower roof additional.)

2. Miscellaneous Live Load (not including paragraph 2.02B loads): 15 psf.

3. Wind Load:a. Basic wind speed = 85 mphb. Roof panels shall have a U.L. wind uplift Class 90 rating.

4. Seismic Load: Zonel.

B. Column reactions shall be vertical and horizontal only. No bending moments will beallowed at the column bases.

C. The design, fabrication, and erection of the building shall conform to the applicablesections of the latest edition or revision of the following codes and standards.

1. American Institute of Steel Construction. Specifications for the Design,Fabrication, and Erection of Structural Steel for Buildings.

2. American Iron and Steel Institute. Specifications for the Design of Cold-FormedSteel Structural Members.

3. American Welding Society. Structural Welding Code.

4. Metal Building Manufacturers Association. Recommended Design PracticesManual.

5. American Society of Testing and Materials. Material Designation as SpecifiedHerein by ASTM Number.

R3310909 13121-3 AR305735

2.03 MATERIALS

A. Structural

1. Hot-Rolled Structural Shapes: ASTM A36 or A529.

2. Tubingorpipe: ASTM A500, Grade B; ASTM A501; or ASTM ASS.

3. Members fabricated from plate or bar stock: 42,000 psi minimum yield strength;ASTM A529, A570, or A572.

4. Members fabricated by cold forming: ASTM A607, Grade 50.

5. Galvanized steel sheet: ASTM A446 with G90 coating; "Grade" to suit building» manufacturer's standards as approved.

B. Structural Framing Components

1. The structural framing shall consist of rigid steel frames, end wall columns, girts,purlins, wind bracing, required framing for supporting overhead doors, framingfor other doors, louvers and roof penetrations, and base angles secured toconcrete, ail as regularly used in industrial pre-engineered buildings by amanufacturer who has produced this type of structure for over 5 years. Cold-formed girts, purlins, and other secondary members shall not be fabricated fromor contain material less than 16 gauge.

2. Bolts: ASTM A307 or A325 as necessary for design loads and connection details.Shop painted, except provide zinc or cadmium-plated units when in direct contactwith panels.

3. Fabrication: Shop fabricate to the indicated size and section, complete with baseplates, bearing plates, and other plates as required for erection, welded in place,and with all required holes for anchoring or connections shop drilled or punchedto template dimensions.

R3310909 13121-4 AR305736

a. Shop Connections: power riveted, bolted, or welded.b. Field Connections: bolted.

4. Surface Preparation and Shop Prime Painting

a. Clean surfaces to be primed of mill scale, rust, dirt, oil, grease, and othermatter precluding paint bond to SSPC-SP3, power tool cleaning standards.

b. Prime structural steel primary and secondary framing members and allmiscellaneous steel immediately after cleaning before rusting can commencewith Tnemec 37-78 Chem-Prime, 3.5 mils dry film thickness, or equal by Mobilor Carboline. Primer used shall be coordinated with and shall be compatiblewith the actual finish paints to be furnished under Division 9.

c. Prime galvanized members after applying approved passivator with primercoordinated and compatible with actual finish paints to be furnished underDivision 9.

d. Before painting, provide drilled hole in each column 1 foot above columnbase for electrical grounding connection.

C. Roofing and Wall Panels

1. Provide MR-24 roofing panels as manufactured by Butler Building or approvedequal. .

2. Provide Stylwel II fluted wall panels as manufactured by Butler Building orapproved equal.

3. Provide three (3) ridge ventilators each 10 feet long and complete with birdscreen, damper and damper chain. Provide flashing, closures (exterior andinterior), fillers, metal expansion joints, ridge covers, fascias, gutters withtailpieces, downspouts, and other sheet metal accessories, factory formed of samematerial and finish as roofing and siding.

4. Fabricate panels in a manner that will eliminate condensation on the interior side.Design joints between panels to form weathertight seals.

/

R3310909 i3i2i-5 a R 30 57 3 7

5. Zinc-Coated Steel Sheets: ASTM A446, Grade C, with G90 coating complying withASTM A525.

a. Metal thickness not less than 24 gauge.b. Gauge, pattern, and depth of rolled sheet section as required to meet

specified loadings.

6. Sheet Panel Fasteners

a. Manufacturer's standard system of self-tapping screws, bolts and nuts, blindrivets, self-locking bolts, end-welded studs, and other suitable fastenersdesigned to withstand design loads.

b. Provide metal-backed neoprene washers under heads of fasteners bearing onweather side of panels. Metal shall match fastener material.

c. Use aluminum or stainless steel fasteners for exterior application andgalvanized or cadmium-plated fasteners for interior applications.

d. Locate and space fastenings for true vertical and horizontal alignment. Useproper type fastening tools to obtain controlled uniform compression forpositive seal without rupture of neoprene washer.

e. Where exposed, provide fasteners with heads matching color of sheets bymeans of plastic caps or factory-applied coating, all as approved.

7. Flexible Closure Strips. Closed-cell, expanded cellular rubber, self-extinguishing,cut or premolded to match corrugation configuration of roofing and sidingsheets. Provide where indicated and necessary to ensure weathertightconstruction.

8. Sealing Tape. One hundred percent (100%) solids, pressure-sensitive graypolyisobutylene compound tape with release paper backing. Not less than1/2-inch wide, and 1/8-inch thick, non-sag, non-toxic, non-staining, andpermanently elastic.

, 13121"s AR305738 I

PART 3 EXECUTION

3.01 MATERIALS RECEIVED

A. Receive, unload, and inspect ail metal building components for short and damagedmaterials. Defective and short materials will be replaced or made good.

3.02 INSPECTION

A. Examine the foundations and the conditions under which work is to be performed andcheck anchor bolt setting for line and grade. Notify the Government SiteRepresentative in writing of unsatisfactory conditions.

B. Do not proceed with the work until unsatisfactory conditions have been corrected in anacceptable manner.

3.03 ERECTION

A. Anchor bolts shall be installed in concrete foundations by the Contractor under% 'Division 3. Base plates shall be installed in place, leveled, and grouted under thisSection. Base angles shall be installed under this Section.

1. Furnish double-nutted anchor bolts to the Contractor for installation in concretefoundations by him.

2. Provide the anchor bolt and base plate setting drawings, approved underparagraph 1.03 above, to the Contractor.

3. Anchor bolts and setting drawings shall be provided to the Contractor prior topouring of concrete, and in ample time for setting bolts in the formwork.

B. Framing. Erect structural framing true to line, level and plumb, rigid and secure. Levelbaseplates to a true even plane with full bearing to supporting structures, set withdouble-nutted anchor bolts. Use a non-shrinking grout to obtain uniform bearing andto maintain a level base line elevation. Moist cure grout for not less than 7 days afterplacement.

R3310909 13121-8 AR305739

9. Joint Sealant. One part eiastomeric; polyurethane, polysulfide, or silicone rubberas recommended by metal building manufacturer and as approved.

10. Finish

a. Provide an approved shop-applied polyester acrylic 20-year finish togalvanized steel roofing, siding, liners, and related trim and accessories.

ib. Clean galvanized steel with an alkaline compound, then treat with a zinc

phosphate conversion coating, and seal with a chromic acid rinse.

c. Provide in one color, white or off-white, for roofing and siding as approved,selected from manufacturer's standards.

d. Trim and accessory pieces shall match the color of roofing/siding.

e. Liner panels may be same or similar color as approved.

D. Insulation - Roof and Sidewalls

1. Not less than 0.5 pound per cubic foot density, 6-inch thickness glass fiber blanketwith U.L. flamespread classification of 25 or less. Two-inch wide continuousvaportight edge tabs.

2. Vapor barrier: vinyl film.

E. Doors

1. Provide three man-doors as shown on the drawings. Doors shall be 3 feet wide by7 feet high solid metal doors with panic lockset, closer, and threshold.

2. Provide two overhead doors as shown on the drawings. Door shall be 6 feet wideby 7 feet high solid metal door with panic lockset, closer, and threshold.

V.

3. All doors shall be of the insulated kind.

R3310909 13121-7 AR3057I*0

C. Purlins and Girts. Provide rake and end purlins with tight-fitting closure channels.Locate and space wall girts to suit door and louver arrangements and heights. Securepurlins and girts to structural framing and hold rigidly to a straight lie by sag rods.

D. Bracing. Provide diagonal rod or angle bracing in both roof and sidewalls as necessaryto withstand required loadings. Coordinate locations with duct work provided underDivision 15 and with door openings.

E. Framed Openings. Provide shapes of proper design and size to reinforce opening andto carry loads and vibrations imposed, including equipment furnished under process,mechanical, or electrical work. Securely attach to building structural frame.

3.04 ROOFING AND SIDING

A. General

1. Arrange joints so that prevailing winds blow over, not into, joints. Apply panels,liners, and associated items for neat and weathertight enclosure. Avoid "panelcreep" or application not true to line. Protect factory finishes from damage.

2. Provide weather seal under high end caps; flash and seal roof panels at ends withflexible closures as required and with sealant to exclude weather.

B. Roof Sheets (Liners and Face Sheet)

1. Provide sealant tape at lapped joints of ribbed or fluted roof sheets, and betweenroof sheeting and protruding equipment, vents, and accessories.

2. Apply sealant tape continuous to clean, dry surface of weather side of fasteningon end laps and on side laps of corrugated or nesting type, ribbed or flutedpanels, and elsewhere to make weatherproof to driving rains.

C. Wall Sheets (Liners and Face Sheet)

1. Apply elastomeric sealant continuous between metal base channel (base angle)and concrete and elsewhere as necessary for waterproofing. Handle and apply

R3310909 13121-9 AR3057U

sealant and back-up in accordance with sealant manufacturer'srecom mendati ons.

2. Align bottoms of wall panels and fasten panels with blind rivets, bolts, or self-tapping screws. Fasten flashings, trim around openings, etc. with self-tappingscrews. When building height requires two rows of panels at gable ends, align lapof gable panels over wall panels at eave height.

D. Fasteners-Roofs and Walls

1. Install screw fasteners with power tool having controlled torque adjusted tocompress neoprene washer tightly without damage to washer, screw threads, orpanels. Install screws in predrilled holes.

3.05 SHEET METAL AND ROOF ACCESSORIES

A. Install roof flashings and roof accessories in accordance with manufacturer'srecommendations and approved shop drawings for positive anchorage to building andweathertight mounting.

3.06 THERMAL INSULATION

A. Install in accordance with manufacturer's published directions, performed concurrentlywith installation of wall and roof panels. Install blankets in liners straight and true inone-piece lengths, perpendicular to and over subgirts with both sets of tabs sealed toprovide a complete vapor barrier. Roof and sidewalls insulation shall have a minimumR f actor of 15.

3.07 FIELD PAINTING (Touch-Up)

A. Prepare substrate properly to receive primer and touch up abrasions, marks, skips, orother defects to shop-primed surfaces of the structural system with same material usedas shop primer.

B. Where allowed, touch up abrasions in factory pre-finished components with air dryingpaint recommended by the manufacturer of the factory-applied paint. Replacecomponents if so ordered by the Government Contracting Officer.

R3310909 1312MO AR3057l*2

C. Surface Preparation. Perform preparation and cleaning procedures in strict accordancewith coating manufacturer's instructions for each substrate condition.

3.08 PROTECTION AND COMPONENT REPLACEMENT

A. Protect work of this Section from damage by other trades. Correct any painting-related damages by cleaning, repairing or replacing, and refinishing, as directed by theGovernment Contracting Officer.

END OF SECTION

R3310909 13121-11 AR305743

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