abcd - domingue szabo and associates · for lafayette parish waterworks district north (lpwdn)...

4741.11 1 00300

May 15, 2017 TO HOLDERS OF PLANS AND SPECIFICATIONS: RE: Water Plant Improvements (2017), Phase I –

Water Well & Ground Storage Tank For Lafayette Parish Waterworks District North (LPWDN) Lafayette, Louisiana

(DSA No. 4741.02)

Attention: Attached is ADDENDUM NO.1 for the subject project. Please include it in your set of Contract Documents and consider it when making your bid. Sincerely, DOMINGUE, SZABO AND ASSOCIATES, INC.

^ George G. Glaubrecht, P.E. GGG/meb Enclosure(s) xc: Mr. Bill Neef Mr. Byron Guillory

ABCD

102 Asma Blvd

Suite 305 Lafayette LA 70508

(337)232-5182

FAX (337)237-7132

www.dsaengineering.com

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www.dsaengineering.com

4741.11 2 00300

ADDENDUM TO CONTRACT DOCUMENTS

AND SPECIFICATIONS

Water Plant Improvements (2017), Phase I – Water Well & Ground Storage Tank

For Lafayette Parish Waterworks District North (LPWDN) Lafayette, Louisiana (DSA No. 4741.11)

______ ADDENDUM NO. 1 May 15, 2017 The following items shall take precedence over referenced counterparts in the specifications, contract drawings and any other documents in conflict herewith. Item No. 1 Refer to the Specifications and Contract Documents, Section 00020 – Advertisement for Bids. DELETE the paragraphs which read:

“Equal Opportunity in Employment: All qualified applicants will receive consideration for employment without regard for race, color, religion, sex, or national origin. Bidders on this work will be required to comply with the President’s Executive Order No. 11246, as amended. The requirements for bidders and contractors under this order are explained in the specifications.

Funding for this project may be through the Louisiana Department of Health Drinking Water Revolving Loan Fund. All contractors and sub-contractors will be required to comply with the Title 29 – Labor, Subpart A – Davis-Bacon and Related Acts Provisions and Procedures”.

Special requirements of the Louisiana Department of Health Drinking Water Revolving Loan Fund will not be included as mandatory. Item No. 2 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund FORM RF211 – EQUAL OPPORTUNITY EMPLOYMENT. DELETE this form in its entirety. Item No. 3 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund FORM RF212 – NONSEGREGATED FACILITIES. DELETE this form in its entirety. Item No. 4 Refer to the Specifications and Contract Documents, EPA Form 5700-49 - Certification Regarding Debarment, Suspension, and Other Responsibility Matters. DELETE this form in its entirety. Item No. 5 Refer to the Specifications and Contract Documents, DWRLF Guidance for Submitting the Disadvantaged Business Enterprise (DBE) Good Faith Effort Requirements. DELETE this document in its entirety.

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4741.11 3 00300

Item No. 6 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund Program Guidance for Submitting the DISADVANTAGED BUSINESS ENTERPRISE (DBE) ATTACHMENT A - CERTIFICATION SOURCES. DELETE this document in its entirety. Item No. 7 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund Program FORM DBE1 DBE COMPLIANCE AGREEMENT. DELETE this document in its entirety. Item No. 8 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund Program FORM DBE2 DBE CONTRACTOR DATA. DELETE this document in its entirety. Item No. 9 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund Program FORM DBE2 INSTRUCTIONS FOR THE DBE CONTRACTOR DATA FORM. DELETE this document in its entirety. Item No. 10 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund Program FORM DBE3 DBE SUBCONTRACTOR CONTACT LOG. DELETE this document in its entirety. Item No. 11 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund Program FORM DBE4 DBE SUBCONTRACTOR BIDS LIST. DELETE this document in its entirety. Item No. 12 Refer to the Specifications and Contract Documents, Drinking Water Revolving Loan Fund Program FORM DBE5 DBE LETTER OF INTENT. DELETE this document in its entirety. Item No. 13 Refer to the Specifications and Contract Documents, EPA FORM 6100-2 (DBE Subcontractor Participation Form). DELETE this form in its entirety. Item No. 14 Refer to the Specifications and Contract Documents, EPA FORM 6100-3 (DBE Subcontractor Performance Form). DELETE this form in its entirety. Item No. 15 Refer to the Specifications and Contract Documents, EPA FORM 6100-4 (DBE Subcontractor Utilization Form). DELETE this form in its entirety. Item No. 16 Refer to the Specifications and Contract Documents, American Iron And Steel (AIS) Requirements. DELETE these documents in their entirety. Item No. 17 Refer to the Specifications and Contract Documents, DWRLF Project Sign Specifications and Guidance Document. DELETE this document in its entirety. Item No. 18 Refer to the Specifications and Contract Documents, SECTION 00821 – DAVIS BACON AND RELATED ACTS. DELETE this Section in its entirety.

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4741.11 4 00300

Item No. 19 Refer to the Specifications and Contract Documents, SECTION 00822 – Wage Rate Determination. DELETE this Section in its entirety. Item No. 20 Refer to the Specifications and Contract Documents, LOUISIANA UNIFORM PUBLIC WORK BID FORM. DELETE this Form in its entirety and SUBSTITUTE the attached, revised LOUISIANA UNIFORM PUBLIC WORK BID FORM. Item No. 21 Refer to the Specifications and Contract Documents, SECTION 00820 – SPECIAL CONDITIONS. ADD the following Article 44. LPWDN Water Plant Operational Plan. Article 44. LPWDN Water Plant Operational Plan

Each tank is equipped will be equipped with a level probe. The water wells will operate based on the level in the Ground Storage Tank (GST) that has been selected as the control tank. Normally both tanks will be in operation and the water will be pumped into GST No. 1 and will flow into Well. No. 2. The operation of the high service pumps will continue their current operation scheme. When the high service pump(s) draw the water in the GSTs to a preset level, Well No. 4 (lead) will be commanded to operate. If the water continues to drop to the second set point, Well No. 2 (lag) will be commanded to operate. The wells will continue to operate until the level in the GSTs reach the preset level to turn the well(s) off. Current phosphate system for Well 3 will be piped to Well No. 4 and controlled “as is” for Well No. 3. A switch will be used to select whether well No. 3 or 4 will control phosphate pump. The phosphate pump operation will be initiated and stop based on the well operation. Well No.2 phosphate feed will remain “as is”. Current Chlorine feed will remain “as is” with Well No. 4 taking the place of Well No. 3 (no new chlorination equipment). There will be a chlorine solution feed point at the influent of each GST. Changing the location of the feed point will be done manually by operating valves on the chlorine solution feed system.

o Normal operation will be for water from Well No. 4 to flow to GST No. 2 then to GST No.1. Chorine will be injected in the influent to GST No. 2 only.

o When GST No. 1 is out of service, chlorine will be fed at the influent to GST No.2. o When GST No. 2 is out of service, chlorine will be fed at the influent to GST No. 1.

Well No. 1 and Well No. 2 will continue to operate as they do currently.

Item No. 22 As a GENERAL NOTE OF CLARIFICATION – All disturbed areas shall be hydro-seeded as per SECTION 02900 - SEEDING, HYDRO-SEEDING, AND SOD. Item No. 23 As a GENERAL NOTE OF CLARIFICATION – All underground piping shall be restrained joint pipe and can be either PVC or ductile iron pipe in accordance with the specifications. All above ground piping shall be ductile iron pipe.

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4741.11 5 00300

Item No. 24 Refer to the Specifications and Contract Documents, SECTION 02719 – PIPING, Pipe Expansion Joints (Above Ground). Above ground expansion joints shall be triple arch. Item No. 25 Refer to the Specifications and Contract Documents, SECTION 7410 - MANUFACTURED ROOF PANELS AND SECTION – 07600 FLASHING AND SHEET METAL.

• Roof and wall Panels shall be 26 gauge steel sheets, not 26 gauge. • Insulation is not required.

Item No. 26 Refer to the Specifications and Contract Documents, SECTION 10500 – WATER WELLS – DRILLING. REPLACE the entire section with the attached SECTION 10500 – WATER WELLS – DRILLING – ADDENDUM NO. 1. Item No. 27 Refer to the Specifications and Contract Documents, SECTION 11310– WELL PUMP AND MOTOR. ADD the following. A tube shall be attached to the pump column with stainless steel bands to allow for the insertion of water level measuring devises during pumping operations. The tubing shall have openings to allow water in the tube and shall be closed at the end to prevent the measuring devise from being inserted below the pump bowl. Item No. 28 Refer to the Specifications and Contract Documents, SECTION 13200– HOT-DIPPED GALVANIZED BOLTED STEEL LIQUID STORAGE TANK. DELETE reference to bolt encapsulation. Item No. 29 Refer to the Plans, Sheet 4. CHANGE culvert size for the culvert located in the relocated ditch beneath the fencing to a 30” Equivalent RCPA (22” x 36”) as shown on Sheet 5. Item No. 30 Refer to the Plans, Sheet 6. REPLACE with the attached Sheet 6. Item No. 31 PRIOR APPROVAL LIST: The following manufacturers’ equipment may be

considered for use on this project (they have received prior approval subject to the following):

The Engineer may allow minor deviations subject to the Engineer’s judgment as to whether such deviations would detract from the quality, reliability or function of the equipment. The equipment manufacturer shall be responsible for any and all redesign required to accommodate their equipment. All drawings and calculations detailing the deviations from the plans and specifications shall be submitted to the Engineer with the shop drawings for approval. Drawings must be in AutoCad 2015 or more recent format and must be stamped by an Engineer licensed in the State of Louisiana. Submit both hard copies and electronic copies for approval. Prior approval of other manufacturers’ equipment shall in no way relieve the Contractor of responsibility for submitting the specified shop drawings for approval or complying fully with ALL provisions of the specifications and drawings.

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4741.11 6 00300

If prior approved equipment is used, the contractor shall, at his own expense, make any changes or additions in the structures, piping, electrical, etc. as necessary to accommodate the equipment. If engineering is required due to substitution of prior approved equipment, the contractor shall furnish and pay for all such engineering services. No qualifications or exceptions listed in prior approval submittals shall in any way alter or serve as substitute provisions relative to this contract.

Section Description of Items Approved Mfr.

02719 Above Ground Expansion joints Proco Products 11350 Gate Valves Crispin 13200 Hot-Dipped Galvanized Tank Gulf Coast Tanks Superior Tank Company

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4741.11 7 00300

LOUISIANA UNIFORM PUBLIC WORK BID FORM

TO: ___________________________________ ___________________________________ ___________________________________ ___________________________________ (Owner to provide name and address of owner)

BID FOR: ______________________________________ ______________________________________ ________________________________________ (Owner to provide name of project and other identifying information)

The undersigned bidder hereby declares and represents that she/he; a) has carefully examined and understands the Bidding Documents, b) has not received, relied on, or based his bid on any verbal instructions contrary to the Bidding Documents or any addenda, c) has personally inspected and is familiar with the project site, and hereby proposes to provide all labor, materials, tools, appliances and facilities as required to perform, in a workmanlike manner, all work and services for the construction and completion of the referenced project, all in strict accordance with the Bidding Documents prepared by: and dated: (Owner to provide name of entity preparing bidding documents.)

Bidders must acknowledge all addenda. The Bidder acknowledges receipt of the following ADDENDA: (Enter the number the Designer has assigned to each of the addenda that the Bidder is acknowledging) ____________________________. TOTAL BASE BID: For all work required by the Bidding Documents (including any and all unit prices designated “Base Bid” * but not alternates) the sum of: Dollars ($ ) ALTERNATES: For any and all work required by the Bidding Documents for Alternates including any and all unit prices designated as alternates in the unit price description. Alternate No. 1 (Owner to provide description of alternate and state whether add or deduct) for the lump sum of:

N/A Dollars ($ N/A ) Alternate No. 2 (Owner to provide description of alternate and state whether add or deduct) for the lump sum of:

N/A Dollars ($ N/A ) Alternate No. 3 (Owner to provide description of alternate and state whether add or deduct) for the lump sum of:

N/A Dollars ($N/A ) NAME OF BIDDER:

ADDRESS OF BIDDER:

LOUISIANA CONTRACTOR’S LICENSE NUMBER:

NAME OF AUTHORIZED SIGNATORY OF BIDDER:

TITLE OF AUTHORIZED SIGNATORY OF BIDDER:

SIGNATURE OF AUTHORIZED SIGNATORY OF BIDDER **:

DATE: _______________________

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* The Unit Price Form shall be used if the contract includes unit prices. Otherwise it is not required and need not be included with the form. The number of unit prices that may be included is not limited and additional sheets may be included if needed. ** If someone other than a corporate officer signs for the Bidder/Contractor, a copy of a corporate resolution or other signature authorization shall be required for submission of bid. Failure to include a copy of the appropriate signature authorization, if required, may result in the rejection of the bid unless bidder has complied with La. R.S. 38:2212(B)5. BID SECURITY in the form of a bid bond, certified check or cashier’s check as prescribed by LA RS 38:2218.A is attached to and made a part of this bid.

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\\DSA-WINSRVR1\COMPANY\PROJECTS\4741.00\4741.11\SPECIFICATIONS\ADDENDUM\ADDENDUM 1.DOCX

LOUISIANA UNIFORM PUBLIC WORK BID FORM UNIT PRICE FORM

TO: Director of Operations and Board of Directors of the Lafayette Parish Waterworks District North (LPWDN) 307 Rue Scholastique, Lafayette, Louisiana, 70507

_________________________________________ (Owner to provide name and address of owner)

BID FOR: WATER PLANT IMPROVEMENTS (2017) PHASE I – WATER WELL & GROUND STORAGE TANK for LAFAYETTE PARISH WATERWORKS DISTRICT NORTH (LPWDN) Lafayette, Louisiana

(Owner to provide name of project and other identifying information)

UNIT PRICES: This form shall be used for any and all work required by the Bidding Documents and described as unit prices. Amounts shall be stated in figures and only in figures.

DESCRIPTION: þ Base Bid or q Alt.# ___ Mobilization & General Conditions REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price)

1.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Water Well, total depth 290’ with 10" diameter screen

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 2.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Furnishing and installing open drip proof, 3 phase, 460V, 75 hp electric motor, furnishing and installing pump, pump column, shaft, discharge, valve, and flowmeter

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 3.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Ground Storage Tank and Foundation

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 4.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Modifications to existing Ground Storage Tank

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 5.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Piping

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 6.0 1 Lump Sum

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DESCRIPTION: þ Base Bid or q Alt.# ___ Construction of concrete foundation & all site work, grading, fencing, drainage work, hydro-seeding REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price)

7.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Limestone Surfacing (incl. fabric)

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 8.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Electrical and Controls

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 9.0 1 Lump Sum DESCRIPTION: þ Base Bid or q Alt.# ___ Additional 22” surface casing

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 10.0 20 Linear Foot DESCRIPTION: þ Base Bid or q Alt.# ___ Additional 16” Well casing

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 11.0 20 Linear Foot DESCRIPTION: þ Base Bid or q Alt.# ___ Additional 304 Stainless Steel well screen, 10” diameter

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price)

12.0 20 Linear Foot DESCRIPTION: þ Base Bid or q Alt.# ___ Additional 10” x ¼” pump column and shaft

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 13.0 20 Linear Foot DESCRIPTION: þ Base Bid or q Alt.# ___ Additional drill hole

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 14.0 1 Linear Foot DESCRIPTION: þ Base Bid or q Alt.# ___ Additional pump stages

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 15.0 1 Each DESCRIPTION: þ Base Bid or q Alt.# ___ Additional limestone surfacing (incl. fabric)

REF. NO. QUANTITY: UNIT OF MEASURE: UNIT PRICE UNIT PRICE EXTENSION (Quantity times Unit Price) 16.0 50 Ton

All quantities are estimated. The contractor will be paid based upon actual quantities as verified by the Owner

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ELECTRICAL ADDENDUM NO. 1

TO PLANS AND SPECIFICATIONS

for Lafayette Parish Waterworks District North

Water Plant Improvements

Lafayette Parish Louisiana ALLAIN AND ASSOCIATES MAY 15, 2017 ------------------------------------------------------------------------------------------------------------------------ The Contractor shall consider the following items a part of the contract documents. These items shall take precedence over counterparts referred to in the plans, specifications, other contract documents, and any other documents in conflict herewith: ITEM NO. 1: ELECTRICAL PLANS

Refer to the right side of sheet E-8 in the center of the ladder diagram. Add a pair of conductors for control of the chlorine solenoid from contactor C1 to the control building. Intercept the existing chlorine solenoid conductors at control building and connect. Provide a surge arrester at the Plant Control Panel. This should be similar to the control of the Zinc and phosphate feeders.

ITEM NO. 2: ELECTRICAL PLANS

Refer to the top of the ladder diagram on the right side of sheet E-8. Add a transfer switch contact closure to indicate a general failure alarm. Using a spare C18 conductor, route the contact closure to a discrete input of the PLC. Provide a surge arrester at the Plant Control Panel.

ITEM NO. 2: ELECTRICAL PLANS

Refer to the new utility service entrance equipment at the left side of the electrical riser on sheet E-3 of the plans. Rather than relocating the 400A safety switch and the automatic transfer switch as shown, new equipment shall be provided as follows. Automatic Transfer Switch: The Automatic Transfer Switch (ATS) shall be UL 1008 listed, standard transition, automatic control, solid neutral and front accessible with a microprocessor-based controller having an LCD display, keypad, a real time clock and generator exerciser. The ATS shall be electrically operated and mechanically held and shall be inherently double throw. The operating temperature range shall be 0 degrees F to 150 degrees F. All of the customary time delays, voltage and current sensing and protective features shall be provided. Furnish a 5-year comprehensive warranty. Output contact closures shall be available for "preferred source supplying load", "standby source supplying load", "preferred source available", "standby source available" and "common alarm events". The ATS shall capable of being commanded by a remote contact closure to start the generator and transfer the load to the standby source. Opening of the contact shall cause the load to transfer back to the preferred source and stop the generator. A digital meter for displaying voltage, current, frequency and power shall be provided. Refer to plan sheet E-8 for special timing requirement for the transfer switch. The ATS shall be rated 400 amps, 480 volts, 3-pole, solid neutral and shall be NEMA-4X enclosed. The transfer switch shall be compatible with the existing generator and equal to the KCT-AMTC-0400-S as manufactured by Kohler (or approved equal).

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The existing transfer switch shall be delivered to the Owner when it is removed.

Safety Switch and Fuses: The safety switch shall be heavy duty, rated 480 volts and UL approved as NEMA-3R. It shall be equipped so that all fuse types except Class R are rejected. The safety switch shall be equipped with cover interlock and padlocking provisions. Approved manufacturers are Square D, General Electric, Siemens and Cutler Hammer. Provide two sets of 400A class R fuses. The existing safety switch shall be delivered to the Owner when it is removed.

END OF ADDENDUM NO. 1

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4741.11 1 10500 ADDENDUM NO. 1

SECTION 10500 - WATER WELLS – DRILLING – ADDENDUM NO. 1 PART 1 – GENERAL Under this section, the Contractor shall furnish and install a test well and a production well in accordance with the plans and as specified herein. RELATED DOCUMENTS: Drawings and General Provisions of the Contract, including General Conditions and Special Conditions and Division 1 Specifications apply to this section. Comply with requirements of applicable Division 2 sections required in connection with piping. Comply with requirements of applicable Division 3 sections for concrete work. Comply with requirements of applicable Division 9 sections for painting. Comply with requirements of applicable Division 11 sections for pumps.

DESCRIPTION OF WORK: The purpose of this scope of work is to develop a ground water supply for the Owner with a design yield of 1,100 GPM, when pumped continuously for twenty-four (24) hours, to meet the purposes of the intended water use. The Ground Water Test Survey is to identify the depth and thickness of a suitable water-bearing formation and attempt to obtain a representative sample of water to determine its chemical/mineral characteristics and acceptability for its intended use. If, after testing, an acceptable water supply can be developed, a water supply production well shall be constructed in the same location as the test well. The work to be performed hereunder consists of two (2) phases. PHASE I is a test hole (s) and if formation warrants, a test well (s) shall be constructed and a water sample (s) obtained for analysis. PHASE II is a water supply production well as per these technical specifications. The intent is to drill the test hole (s), locate the water-bearing formation(s), perform electric and natural gamma logging surveys and, if the formation warrants, set one (1) or more test wells and obtain one (1) or more representative water samples from the best water-bearing formation. Based on information and recommendations provided by the Contractor, a decision shall be made as to which water-bearing formation(s) the water supply production well should be constructed. The Contractor shall then be given directions either to proceed with construction of the production well or abandon the test hole depending upon the results of the test hole/test well operations. PHASE I – GROUND WATER TEST SURVEY Test Hole Construction: The work to be performed hereunder consists of drilling a test hole at the location of the production well to a depth of approximately 292 feet below the ground surface at a site designated by the Owner.

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4741.11 2 10500 Addendum 1

Information submitted from the test hole shall include compilation and submission of the driller’s log, electric log and natural gamma log, with laboratory peremeter tests and sand sieve analysis. A qualified ground water Hydrologist, who is broadly and locally experienced in the design, site selection, and construction of similar size gravel wall wells shall be employed by the Contractor to review the geophysical logs, driller’s log, and laboratory test data to determine the most probably formation(s) that will meet the intent and purpose of this water supply project. The Hydrologist shall recommend the depths and formation intervals to be tested. Test Well Construction: Upon approval, the test hole shall be reamed and a temporary test well installed, screening the selected formation. A 24 hour constant rate aquifer test shall be performed and evaluated by a qualified ground water Hydrologist to estimate the formation’s permeability, transmissivity, well specific capacity, and probably pump setting. It is anticipated that one (1) or more water samples shall be obtained from the test well, if sand intervals are of adequate permeability and thickness to warrant construction of the water supply production well. PHASE II – WATER SUPPLY PRODUCTION WELL This work consists of furnishing of all materials, tools, equipment, and the performance of all necessary labor for the construction of the water supply production well on the site provided. Generally, the ground water supply system includes the following items:

• One (1) gravel wall water supply production well and concrete pump foundation. • One (1) vertical turbine pump with a VHS motor

GENERAL The work covered by this section of the specifications shall include the furnishing of all equipment, plant, labor, supervision, materials, and appliances and the performance of all operations necessary to the drilling, testing and completion of one test well and one water supply well in accordance with these specifications and the contract drawings. The operations shall include the furnishing and installation of a suitable drilling rig, preparation of pits and channels, drilling of a pilot hole and the well hole, furnishing and cementing of the surface casing, sampling of the formations and obtaining sieve analyses of same, maintaining a complete driller's log, furnishing and setting well screen and fittings, furnishing and installing a graded gravel filter, furnishing and setting well casing, developing the well, testing the well, furnishing, removal of all equipment and clean up and restoration of the site, and all other operations necessary to the installation of a complete and satisfactory water supply well in compliance with the intent of these specifications and the contract drawings. The Contractor shall be responsible to accurately maintain all required records, to furnish copies to the Owner and to the State regulating authority (Louisiana Department of Natural Resources).

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4741.11 3 10500

The completed well shall be guaranteed for one year from the date of acceptance, in accordance with these contract documents. The well shall be drilled at the location shown on the plans. The site is under the control of the Owner. The Contractor shall be responsible for obtaining written consent to use or occupy any land other than that under the control of the Owner. The Contractor shall be responsible for furnishing potable water for drilling purposes. The Contractor shall be responsible for obtaining power for drilling and for other operations, including test pumping, at no direct pay. The Contractor shall be responsible for disposing of waste water and drilling mud and to prevent damage to or silting of existing drainage facilities. The Contractor shall employ only competent workmen for the performance of the work under this Contract. All work shall be performed under the direct supervision of an experienced well driller satisfactory to the Engineer. The Contractor shall satisfy himself regarding all local conditions affecting his work. All information given in these specifications or on the plans or by the Owner's agents in regard to local conditions is intended to assist the Contractor, but its accuracy is not guaranteed by the Owner nor does the information relieve the Contractor of any responsibility under this Contract. Unless otherwise specified, work performed and materials furnished shall be in compliance with Title 56 "Water Well Rules, Regulations and Standards, State of Louisiana" dated March, 2013, as amended. QUALITY ASSURANCE Warranty and Guarantee Covering Water Supply Production Well: Mechanical Warranty: The contractor shall warrant all components of the well to be free from defects in both materials and workmanship for a period of one (1) year after acceptance by the Owner, except that the warranties by the manufacturer of materials longer than one (1) year shall be transferred to the Owner. Operational and Yield Guarantee: The Contractor shall guarantee that the well will produce the specified capacity for one (1) year form the date of final acceptance; unless additional wells are later installed with a radius of influence overlapping into that of this well, at which time the capacity shall be reduced by the net effect, if any, of such well as determined by acceptable ground water hydrology methods. The Contractor shall further guarantee that the well will function properly as intended, at a minimum of eighty percent (80%) well efficiency at the design rate. No guarantee is expressed or implied on the part of the Contractor regarding the chemical quality of the water.

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4741.11 4 10500 Addendum 1

PART 2 - PRODUCTS CASING:

Casing pipe shall be new, Grade B carbon steel pipe conforming to ASTM A53 and specifications ANSI/AWWA Standard C200 (API Standard 5L) with screw joints (tack weld) or continuous butt welded joints (AWWA C206). The pipe shall conform to the nominal sizes indicated on the drawings. Screw joint couplings shall be tack welded on both adjacent pipe sections. Surface or conductor pipe shall be new standard weight steel pipe conforming to specifications ANSI/AWWA Standard C200 (API Standard 5L) with screw joints and couplings (tack welded) or continuous butt welded joints. Well pipe thicknesses shall conform to the minimum thickness indicated on the plans.

GROUT

Cement Bentonite Grout. Grout shall consist of a mixture of API Spec. 10, Class G cement (or Class B similar to ASTM C150 Type II) and water in the ratio of 1.19 cu. ft. (8.9 gal.) of water per 94 lb. sack of cement weighing approximately 118 lb./cu. ft. and 6% by weight, bentonite. A maximum of 2%, by weight, calcium chloride may be added.

WELL SCREEN

The Contractor shall furnish and install the required well screen in accordance with these specifications and the contract drawings. The minimum length and diameter shall be as shown on the drawings. The screen shall be entirely of Type 304 stainless with a top section of Type 304 stainless steel blank pipe of the length shown on the drawings. The screen shall be of welded construction with continuous slot. Slot openings shall be of the size to be determined after the formation sample sieve analyses are completed. The openings shall be designed to prevent clogging and shall be free from jagged edges and irregularities, with the inner opening of the slot larger than the outer opening. The necessary couplings, fittings and plug valves shall be provided to seal the screen at the bottom and to the casing on top. All fittings shall be constructed of the same material as the screen. Screen connections to the well casing shall be subject to the Engineer's approval.

PART 3 - EXECUTION TEST HOLE

Prior to drilling the production well, the Contractor shall drill a test hole at the location of the water well.

The test holes are for the purpose of obtaining geological samples and water quality samples, and determining the nature, thickness, and elevation of the water bearing formations and overlying

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4741.11 5 10500

strata from the surface downward to depths indicated by the Owner. The information is to be used to determine the final design of a well and pumping equipment for the Owner.

The test hole shall be large enough to accommodate geophysical survey instruments for the purpose and shall be drilled to reasonably plumb alignment and specified depth by the hydraulic rotary method. Each hole shall be not less than 7 inches in diameter. The survey shall record short and long normal resistivity, spontaneous potential (SP) and gamma ray data.

A commercial NSF approved bentonite-type drilling mud shall be used during the drilling operations. The viscosity of the mud shall be sufficient to carry the heaviest drilled materials to the surface and a record of viscosities and mud weights (densities) shall be kept. Chlorine sufficient to maintain a 50 ppm residual shall be added to the fluid while drilling and developing in the water bearing formation.

The Contractor shall employ only competent workmen for work under this contract, and all work shall be performed by or under the supervision of an experienced well driller and pump operator satisfactory to the Owner.

In drilling the holes, samples of aquifer materials shall be collected by the driller at 5 foot intervals and at each stratum change. These shall be kept clean and separate from other materials at the surface. The Contractor shall install a sample collector approved by the Owner. One approved type shall be as follows:

Formation samples of the water bearing strata shall be taken at the discharge spout continuously during cutting and circulation operations. The samples shall be collected by the rod decanting method, with grab check samples, and shall be separated and labeled by the depth interval represented, as "100 feet - 105 feet." Samples shall be representative of intervals of five foot (5') of depth, starting at the top of the sand formation, or as directed by the Owner. Three sets of samples per interval shall be settled, drained, air dried, quartered, and bagged in volumetric quantities of at least one pint. The Contractor shall obtain sieve analyses of all samples required by the Engineer by a laboratory approved by the Engineer. Sieve analyses shall be used as a basis for selection of final screen slot opening sizes and screen length, and as a basis for the grain size of the graded sand filter.

The Contractor shall be responsible to furnish potable water for drilling and washing of geological samples.

After the test hole has been drilled to the depth specified by the Owner, the Contractor shall obtain a geophysical log for the full specified depth of the hole. The log shall be made by a commercial firm experienced in geophysical logging to verify the depth, thickness and character of the water-bearing sands and salinity of the water. The log shall be of the continuous trace type as follows:

1. A standard electric log with one (1) spontaneous potential and two (2) resistivity curves, including one (1) for a short normal spacing of sixteen inches (16”), and one (1)for a short normal spacing of sixty-four inches (64”). The scale of the electric log shall be determined as dictated by the condition of the site geology.

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4741.11 6 10500 Addendum 1

2. A radioactivity log which measures the natural formation gamma radiation level, shall be presented in standard API Units. Seven (7) copies of each geophysical log marked as field prints shall be delivered to the Engineer upon completion of the logging procedures.

Hydrologist Report: Within ten (10) days of the completion of the test hole, the Contractor’s Hydrologist shall present a written report to the Owner giving his evaluation of the test hole. The written report shall contain, but not be limited to, the following: 1. Driller’s Log 2. Geophysical Logs 3. Sand Laboratory analysis of the formation permeability

4. Effective grain size, uniformity coefficient of sand, graph of cumulative percent retained versus grain size of sand

5. Estimated yield capacity in GPM for the water supply production well from each sand interval recommended.

6. Recommended screen slot size and sieve analysis of gravel pack to be used should the permanent well be constructed

Drilling Procedure: After they Hydrologist’s report has been submitted, the Contractor may be required to obtain one (1) or more representative water samples from any sands considered for construction of the permanent well. Should a water sample be required, the test hole shall be reamed to a nine and seven-eighths inch (9-7/8”) minimum diameter. The drilling method of reaming the test hole, and the drilling mud and mud monitoring shall be the same as the original test hole drilling procedure. Only commercial NSF approved bentonite-type drilling fluid shall be used. No organic-type drilling mud shall be allowed. Upon completion of reaming, the Contractor shall set a minimum of thirty feet (30’) of four-inch (4”) minimum diameter stainless steel well screen at appropriate intervals designated by the Engineer to test the formation(s) selected to development. The screen material shall be of sufficient strength to be retrieved from the test well for construction of the water supply production well. The screen slot size shall retain at least ninety percent (90%) of the gravel pack material used for this temporary test well. The well screen shall be securely connected to six-inch (6”) diameter steel casing of sufficient material strength to be removed upon the completion of the test well procedures. The Contractor’s Hydrologist, or the Engineer, may designate bentonite pellets by placed in the gravel pack at selected intervals to prevent any fluid movement in the gravel pack between screen intervals.

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4741.11 7 10500

Development: The casing and screen shall be placed in the hole, gravel packed, and development started as soon as possible. This is to preclude as much as reasonably possible, drilling fluid intrusion into the sampling interval. After the screen is set and gravel packed, development (as outlined below) shall continue until the water is clean, and free of drilling fluid and fine sand. Development shall continue until the well is fully developed or produces a sustained yield of not less than one hundred (100) galls per minute (GPM).

Development with Air: The Contractor shall develop the well with an adequate size air compressor as long as the yield increases. If proper development is not achieved with air, the procedure in Step B below shall be applied.

Development with Surge Plunger, Jetting Tool, or Tandem Agitator with Air Compressor: When development with air has failed to produce the desired yield, a solid or valved surge plunger, jetting tool or agitator shall be used. The surging, jetting or agitating shall be started slowly at first and increase as the yield increases and continued until satisfactory results are obtained.

Test Pump and Pumping: The Contractor shall provide a test pump capable of producing enough capacity and head to stress the aquifer, considering static level and friction losses. Provision for water level measurements by electric tape or air line shall be made for measuring before, during, and after pumping. A foot valve shall be required in the intake suction pipe or a check valve immediately above the submersible pump bowl of the test pump to prevent instantaneous recharge to the aquifer during the recovery test. An air line shall be required for water level measurements if the water surface cannot be determined between the casing and the pump column with an electrical tape. Special air line reading equipment shall be required, capable of reading water levels to the nearest one-inch (1”). The well shall be pumped continuously at a constant rate to assure good results but in no case for less than 1,440 minutes (24 hours). At the end of the test, the recovery of the water level shall be measured and recorded. All drawdown and recovery measurements shall be in accordance with time intervals indicated on the 24 hour test forms. All water samples shall be placed in appropriate containers, securely closed to avoid spillage and contamination, clearly labeled. Water samples shall be tested for pH, iron, manganese, alkalinity, hardness and ammonia in accordance with current EPA standards for sampling and testing of drinking water.

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4741.11 8 10500 Addendum 1

Ground Water Hydrologist Report: The Contractor’s Hydrologist shall reduce the 24 hour aquifer test data by appropriate analysis techniques and determine the following: 1. Aquifer transmissivity 2. The radius of influence 3. Design the water supply production well (underream diameter, etc) 4. Project the water supply well specific capacity 5. Project the pump setting for the design yield. 6. Verify the gravel pack material selection 7. Verify the screen slot size 8. Calculate the screen entrance velocity for design yield PRODUCTION WELL TYPE OF WELL

The well to be constructed shall be composed of the following items: There shall be a well casing of the size and to the depth shown on the drawings. The drill hole shall be of sufficient size to allow a 3" annular opening completely around the casing, which shall be grouted with cement under pressure.

A hole shall be drilled through the cemented well casing to and into the water bearing formation. The underreamed hole shall be of sufficient size to allow a 7" annular opening completely around the screen assembly for the graded gravel filter, and to facilitate placing the screen and casing steel pipe of the size and weight shown on the drawings to the depth indicated, or as directed by the Engineer. The well surface casing shall extend to above ground level as indicated on the drawings. Guides shall be provided to center the surface casing in the surface pipe and in the drill hole. The screen shall be sealed to the inner casing as required in these specifications and as indicated on the drawings. It shall be of the size and type specified herein and on the drawings.

DRILLING AND LOGGING

The drilling operation shall be done with suitable equipment and under the supervision of an experienced, responsible driller. Only water which is of acceptable sanitary quality shall be used in the drilling operation. Acceptable drilling mud may be used as required to prevent caving of the formation, however, the Contractor shall be required to use a self-destroying drilling fluid additive when drilling in the water bearing formation in which the screen is to be set. In order to receive consideration for approval of a drilling fluid additive other than that specified, a complete description of the proposed additive along with the approval of the appropriate authority must be submitted to the Engineer for approval. Disinfection of the circulation water with a chlorine dosage sufficient to maintain a 5.0 ppm residual shall be required when drilling in the area to be screened.

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4741.11 9 10500

Details of packers and/or sealers to be used during well construction shall be submitted in five (5) copies to the engineer for his approval prior to beginning of construction. An accurate log shall be maintained during drilling. It shall show the depth, type and thickness of each stratum encountered and shall document any cave-in, loss of drilling fluid or other significant occurrence. The log shall be kept at the site and shall be available to the Engineer. Five copies shall be given to the Engineer upon completion of the well. The Contractor shall have an acceptable geophysical log made and shall furnish seven (7) copies of the log and the interpretation of the log, if required by Owner. The water well may be drilled by enlargement of the test well hole and cementing of that portion of the test hole below the required depth.

CASING

Casing materials shall be as specified in Part 2 - Products. The pipe string shall be continuous and shall form a water tight casing for its entire length. It shall be placed to be concentric in the drill hole. If casing joints are butt welded, line-up clamps shall be used. The Contractor shall keep an accurate record of the order, number, size and length of the individual pieces of pipe and other material installed in the well. This record shall be kept available on the site as the materials are assembled. The record shall be delivered to the Engineer upon completion of the well. Pipe supplier certificates (Mill Certificates) shall be delivered to the engineer prior to installation of the surface casing.

GROUTING

The annular space between the drill hole and the well casing and the well casing and surface casing (pipe conductor) shall be filled with cement grout. Grout shall be of the type specified in Part 2 - Products of these specifications. Cement-Bentonite grout shall be placed by forcing the mixture from the bottom of the annular space toward the surface. The grouting shall be done continuously and in such a manner as to fill the entire space in one operation. The Contractor shall secure the Engineer's approval of the proposed method of grouting before proceeding with the placement. No drilling or other work on the well shall be permitted within 72 hours of completion of the grouting. However, if quick-setting cement is used the period may be reduced to 24 hours.

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4741.11 10 10500 Addendum 1

ALIGNMENT

The drill hole shall be constructed and all casing and screen shall be set round, plumb and true to line. The Contractor shall furnish all labor, tools and equipment and shall make tests for plumbness and alignment before the well is accepted. The tests shall be made to the satisfaction of the Engineer and shall be made to a depth of forty feet below the anticipated pump setting, as shown on the drawings. The variation of the well from the vertical per one hundred feet of depth shall not exceed two-thirds (2/3) the smallest diameter of the part of the well being tested. Misalignment beyond the tolerances outlined above shall be corrected by the contractor at no added expense to the Owner. Any hole abandoned shall be filled with cement slurry to ten feet (10') from the surface. The cement slurry shall be placed by using a grout pipe, tremie, cement bucket or dump bailer so as to avoid segregation or dilution of the slurry. The slurry shall be placed at the bottom of the abandoned hole and then progressively up to the top ten feet of the hole. The top ten feet shall be concreted.

WELL SCREEN

The Contractor shall furnish and install the required well screen in accordance with these specifications and the contract drawings. The minimum length and diameter shall be as shown on the drawings. The necessary couplings, fittings and plug valves shall be provided to seal the screen at the bottom and to the casing on top. All fittings shall be constructed of the same material as the screen. Screen connections to the well casing shall be subject to the Engineer's approval. Washed, graded, disinfected gravel in sufficient quantity to form a 7" artificial filter around the screen shall be installed as shown on the plans. The gravel shall be of a size which will support the water-bearing formation sand and not allow it to penetrate through the gravel filter. The gravel selected shall be washed, screened, and without sharp edges. The gravel shall be free of dirt, trash, clay, or other foreign substances. Crushed gravel shall not be used. Not more than five percent (5%) of the gravel shall be soluble in hydrochloric acid. The water bearing formation shall be sampled and analyzed by a recognized laboratory and recommendations on screen slot openings and be given to the Contractor and approved by the Engineer prior to ordering the well screen. The gravel pack shall have a uniformity coefficient of 2.5 or less. Gravel Operation: The annular space between the screen and the face of the underreamed hole and between the inner casing and the outer casing shall be filled with select gravel to within five feet (5’) of the top of the inner casing. The gravel shall be placed in the well through a gravel line or tremie pipe, which shall be set as near to the top of the screen as possible. The gravel shall be tremied with water from the surface through this line. The volume of gravel placed in the well shall not be less than the calculated volume of the annular space between the underreamed face of the well and the outside of the screen plus the annular space between the inner and outer casings. A quantity of gravel amounting to at least twenty percent (20%) more than this computed annular space shall

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4741.11 11 10500

be stocked on location before the gravel procedure begins. After development, testing, and completion of the well, the gravel level shall be checked and retuned to within five feet (5’) below the top of the inner casing.

DEVELOPMENT AND COMPLETION OF WELL

The Contractor shall furnish all necessary pumps, compressors, plungers, jetting equipment, and other appurtenances and shall develop the well by the method specified below, or by other methods approved by the Engineer, to remove the maximum amount of fine grain sand, to remove the drilling fluid, and to cause gradation of the natural formation for maximum yield of water per foot of draw down. Only clean water from an approved source or from the formation may be used in development. Development shall be commenced immediately after the screen assembly and gravel pack have been satisfactorily installed. The well shall be thoroughly pumped and shall be developed by the use of surge and jet spray plungers with adequate pressure. All fine sand shall be removed. Surging and pumping development shall be continued or repeated until the drilling fluid and fine sand is removed and the required yield is obtained. The well shall not be considered to be satisfactorily developed until the maximum specific capacity (gallons per minute per foot of drawdown) is obtained under test conditions. Final determination of specific capacity and the maximum drawdown at design pumping rate shall be made after completion of the test well. Upon completion of development, the well shall be disinfected.

TESTING THE WELL

The Contractor shall furnish and install and operate an adequate capacity test pump, driving equipment, and all accessories for testing the well yield and drawdown characteristics. The pump shall be capable of discharging the test rate of at least 2.0 times the design capacity. It shall be capable of being pumped at a constant rate continuously for 24 hours without interruption. The Contractor shall also furnish, install and maintain discharge piping and an appropriate, approved device for measuring the flow of water, such as a weir box or calibrated orifice. He shall also furnish, install and operate suitable equipment for measuring the water level in the well, both while pumping, while at static conditions and during recovery. The well test shall be made at a continuous and constant discharge rate selected by the Engineer and shall be for a total period of at least twenty-four (24) hours. Water level shall be accurately determined and recorded before pumping, at intervals during pumping as may be required by the Engineer, and at intervals following the pump shut down until the initial static level has been reached, or to the satisfaction of the Engineer. The pumping rate shall also be measured and recorded at intervals of 30 minutes, or as required by the Engineer. If pumping stops before the end of the test due to equipment failure, the 24 hour test must be restarted after full recovery of the static water level.

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4741.11 12 10500 Addendum 1

Similar tests of at least 4 hours duration for the electric motor shall be made after the permanent pumping equipment has been installed and is ready for operation. Water samples shall be collected in the 24th hour of pumping. Analyses shall be performed for constituents listed on the EPA Primary and Secondary Drinking Water Standards. The Contractor’s Hydrologist shall analyze the aquifer test data by normally recognized methods showing semi-log plots of drawdown and recovery, and as a minimum, report the following:

• The well specific capacity • The well efficiency of the production well • The coefficient of transmissivity of the aquifer • The radius of influence of the production well • The interference drawdown of other wells (if any) • The recommended spacing between wells at the ten percent (10%)

interference level • The projected long-term pumping level in the production well • Recommended capacity for the permanent pumping equipment for the

production well • Recommended pump bowl setting depth

Closed Circuit Television Inspection and Procedure: Television equipment to consist of a self-contained camera and a monitoring unit connected by a coaxial cable. Camera is to be waterproof and small enough to ensure passage through the casing, liner and screen sections. Camera unit to include two separate cameras with two separate light sources in one camera assembly unit with one camera having a downhole camera lens and the second separate camera having a right-angle camera lens. Camera unit must have capability for operator to select downhole or right-angle lens from the surface for on-demand use without pulling the camera unit out of the well, installing a camera attachment for right-angle view inside the well and rerunning the camera back into the well. A downhole camera with mirrors or a minor attachment is not acceptable for use. Downhole camera lens should show a self-continuous, clear picture of entire inside periphery of casing, liner and screen, and right-angle lens should show clear close-up picture of casing, liner and screen.

DISINFECTION OF WELL

After the well has been completely constructed, it shall be thoroughly cleaned of all foreign substances, including tools, timbers, rope, debris of all kinds, cement, oil, grease, joint dope, and sand. The casing pipe shall be thoroughly swabbed, using approved alkalis or detergents, to remove oil, grease or joint dope. Following this the well shall be disinfected with chlorine solution. Chlorination shall be in accordance with Lousisana State Sanitary Code and AWWA C654.

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4741.11 13 10500

Chlorine shall be applied in a solution of such volume and strength and in a manner to obtain a concentration of at least 50 parts per million in all parts of the well. Chlorine solution shall be flushed out into the formation surrounding the screen. The solution shall remain in the well a minimum of eight (8) hours, and shall then be pumped until there is no chlorine residual in the water being discharged. The well shall be chlorinated in the manner described above when the test pump is installed and again after the permanent pumping equipment has been installed. The well shall be rechlorinated as often as is necessary to obtain proper disinfection of the well. Disinfection shall be accepted as satisfactory when samples collected for bacteriological examination are certified by the Louisiana Department of Health to be free of contamination and safe for human consumption.

WATER QUALITY

The Contractor shall take all necessary precautions to prevent contaminated water, gasoline, oil or other harmful substances from entering the well or the water bearing formation. In the event that contamination or other harmful substances shall enter the well due to the neglect of the Contractor, he shall be responsible, at his own expense, to perform such work and furnish such chemicals, fittings, seals or other materials which may be necessary to eliminate the offensive condition. A drill stem water quality sample and chemical test shall be run during drilling if required by the Engineer. Any layer encountered which contains salt water or contaminated water shall be grouted in accordance with these specifications to a depth of twenty feet (20') below the deepest layer containing the undesirable water. The water from the completed well shall be demonstrated to be free from sand (less than 5 mg/l or less of sand) and with a turbidity of less than 1.0 NTU as determined in accordance with "Standard Methods" or "EPA Methods". Before acceptance of the well the Contractor shall submit samples of water from the well to the State Office of Health or to an approved commercial laboratory for chemical analysis, and shall submit to the State Office of Health for approval of the use of the water for domestic purposes. All cost associated with water quality testing shall be included in the base bid.

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4741.11 14 10500 Addendum 1

Water from the water bearing formation shall be sampled for the following constituents;

Ammonia Nitrite Nitrate Secondary Contaminants

Aluminum Chloride Color Copper Fluoride Foaming Agents Iron Manganese Odor pH Silver Sulfate Total dissolved solids Zinc Ammonia Primary Contaminants Antimony Di (2-ethylhexyl) adipate o-dichlorobenzene Arsenic Di (2-ethylhexyl) phthalate Para-dichlorobenzene Barium Dibromochloropropane

(DBCP) 1,2- dichloroethane

Beryllium Dinoseb 1,1- dichloroethylene Cadmium Dioxin (2, 3, 7, 8-TCDD) Cis-1,2- dichloroethylene Chromium Diquat Trans-1,2- dichloroethylene Lead Endothall Dichloromethane Copper Endrin 1,2-dichloropropane Cyanide Ethylene Dibromide (EBD) Ethylbenzene Fluoride Glyphosate (Mono)chlorobenzene Mercury Heptachlor Styrene Nitrate Heptachlor epoxide Tetrachloroethylene Nitrite Hexachlorocyclo-pentadiene Toluene Total nitrate and nitrite Lindane 1,2,4-Trichlorobenzene Selenium Methoxychlor 1,1,1,-Trichloroethane Thallium Qxamly (vydate) 1,1,2-Trichloroethane Asbestos Pentachlorophenol Trichloroethylene Alachlor Picloram Vinyl Chloride Altrazine Polychlorinated biphenyls

(PCBs) Gross alpha particle

Benzo (a) pyrene (PAHs) Sizamine Combined radium 226/228 Carbofuran Topxaphene Uranium (as of 12/08/03) Chlordane 2,4,5-TP (Silvex) Beta particle and photon

emitters Dalapon Benzene Gross beta 2, 4-D Carbon tetrachloride

All testing shall be in accordance with current EPA standards for sampling and testing of drinking water. All detection limits shall be sufficiently low to determine compliance with MCL or MCLG for each chemical. Four copies of the chemical analysis report and the certificates of approval shall be submitted to the Engineer by the Contractor.

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4741.11 15 10500

PUMP FOUNDATION AND CASING HEAD SEAL

The Contractor shall provide a reinforced concrete pump foundation and surface slab in accordance with the drawings. Concrete shall have a minimum compressive strength of 4,000 pounds per square inch after 28 days. Finish shall be smooth and shall be hand rubbed to remove form marks or other irregularities. The casing head of the pump shall be sealed to the pump column in an approved sanitary manner, as indicated on the drawings. All openings into the casing shall be sealed or screened as indicated on the drawings, or as approved by the Engineer, to prevent the entrance of contamination. Metal parts shall be painted. A drainage system shall be provided to collect packing gland leakage and conduct this from the well pump site. All required castings, fittings, pipe and ditching shall be furnished and installed.

REGISTRATION OF WELL

The water well shall be registered with the State of Louisiana, Department of Natural Resources, Office of Conservation within 30 days of completion, and proof of registration shall be furnished to the Owner. Registration shall be made in accordance with regulations in Title 56, Public Works: Part I. Water Wells.

MEASUREMENT AND PAYMENT

The payment shall be as bid on the Bid Form and as accepted by the Owner. Payment is for work as depicted on the contract drawings, including but not limited to: drilling of a test water well and a production water well total depth of approximately 290’ with 10" diameter screen; furnishing and installing open drip proof, 3 phase, 460V, 75 hp electric motor, furnishing and installing pump, pump column, shaft, discharge, valve, flowmeter, and piping, water quality testing, construction of concrete foundation; site work, and electrical and controls. Some of these items are described elsewhere in the technical specifications. Variations from the basic quantities shall be added or deducted from the lump sum base price in accordance with the unit prices as bid. Measurement of actual quantities shall be based on records of the driller and/or on field sounding and measurement of the completed well by methods approved by the Engineer. Payment of the contract price plus or minus any adjustments for more or less depth at bid prices shall constitute full compensation for furnishing all materials, tools, equipment, labor, supervision, transportation, drilling, grouting, disinfecting, testing, clean up and for other incidental work to complete the well installation in accordance with these specifications and the contract drawings.

END OF SECTION 10500

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AutoCAD SHX TextNOTES: 1. LOCATE AT FINIAL. LOCATE AT FINIAL. 2. BOLTS AND NUTS BOLTS AND NUTS TO BE GALV. ASTM A307. 3. REMOVABLE TOP REMOVABLE TOP SECTION OF VENT TO BE HOT DIPPED GALVANIZED AFTER FABRICATION. 4. SEAL WELD ALL SEAL WELD ALL JOINTS. 5. GRIND SMOOTH ALL GRIND SMOOTH ALL CORNERS, EDGES, WELDS, ETC.

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AutoCAD SHX Text5/8" ROD

AutoCAD SHX TextROOF

AutoCAD SHX Text14" NECK

AutoCAD SHX TextROUND CORNER

AutoCAD SHX TextROOF

AutoCAD SHX Text316" PLATE

AutoCAD SHX TextSTAINLESS STEEL BANDS

AutoCAD SHX Text20/20 MESH STAINLESS STEEL SCREEN (ONE PIECE WITH 2-S.S. BANDS TO HOLD SCREEN IN PLACE. LAP ENDS OF SCREEN WITH NO CAPS OVER ".116".

AutoCAD SHX Text8-8"X8 " OPENINGS 12" OPENINGS (EQUALLY SPACED)

AutoCAD SHX TextNOTE: ALL DIMENSIONS SHALL BE VERIFIED WITH TANK MANUFACTURER.

AutoCAD SHX TextCONSULTING ENGINEERS & LAND SURVEYORS

AutoCAD SHX Text& ASSOCIATES, INCORPORATED

AutoCAD SHX TextLafayette, Louisiana

AutoCAD SHX TextGROUND STORAGE TANK DETAILS

AutoCAD SHX TextWATER PLANT IMPROVEMENTS - 2017 PHASE I - WATER WELL & GROUND STORAGE TANK

AutoCAD SHX TextLAFAYETTE PARISH WATERWORKS DISTRICT NORTH

AutoCAD SHX TextCHRISTOPHER K. RICHARD

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AutoCAD SHX TextPROFESSIONAL ENGINEER

AutoCAD SHX TextLicense No. 24629

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AutoCAD SHX Text5.11.17

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AutoCAD SHX TextADDED ROOF MANWAY TO GSR TANK; REVISED NOTE

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Addendum 1SECTION 10500 Addendum No. 14741.11 Revision 1 Sht 6Sheets and Views6 GROUND STORAGE TANK DETAILS