, f

! I

Liquid Engineering Corporation

Steel Potable Water Reservoir Immediate Needs Assessment

Job Number; 42427 Utility: EVERGREEN WATER AND SEWER Tank: NORTON

inspector: C. FROMM Dive Controller: J. ROBERTS Date: 7/S/2012

1. Health and Safety Items□ Safety Climb System Installation: RECOMENDED□ Vent Screen Repairs: NOT RECOMENDED

2. Testing Items□ Dye Testing for Leak Evaluation: NOT Performed0 Presence of Lead Test (Interior/Exterior): INTERIOR None Detected, EXTERIOR LEAD DETECTED

3. Destructive Testing Items□ % of Lead Test (Interior/Exterior) (Coating samples are removed for laboratory analysis) N/A□ Coating Adhesion Test (Interior/Exterior): N/A

Specific written authorization required to perform destructive testing. Destructive tests include touch-up of coating system.

4. Repair Items0 Epoxy Coating Repairs: RECOMENDED BEFORE OR JUST AFTER PUTTING TANK ONLINE□ Temporary Leak Repairs: None Needed□ Float Operated Level Indicator Repairs / Maintenance: N/A□ Hypalon Repairs: N/A

5. Security Related Items (Criticalsecurity upgrade information is immediately available)0 Tank vents are not equipped with a security vent shroud:0 Tank hatches are not equipped with a security hatch locking device:□ Tank perimeter not adequately secured:

The above mentioned additional work is considered immediately necessary and is recommended to be completed. Some items may be completedin conjunction with work currently being performed while the crew is on site.

Reservoir Inspection Condition SupplementalClean and Inspect Every Three Years

Security Items Mentioned Above

RECOMEND REMOVING SEDIMENT BEFORE PUTTING TANK BACK ONLINE.

DISCLAIMERUquid Engneering does not provide consulting engineering services. Unless otherwise noted, the findings contained in tiris report were neither prepared nor reviewed by a licensed

Professional En^neer, but are based on experience, training and visual examination of the Dive Maintenance TedmidanOCopyright 1998 - 2009 Uquid Engineering Corporation - All rights reserved

Liquid Engineering Corporation

Steel Potable Water Reservoir Inspection Report

Job Number 42427

Inspector: C. FROMM

Utility: EVERGREEN WATER AND SEWER

Dive Controller: J. ROBERTS

Tank: HORTON

Date: 7/5/2012

I I- ^1 i imi. ; 'ANSI/AWWA'M42

piiiPliiii

SSPC Legend NACE Legend AWS LegendGrade Description Grade Description Grade De^qription10 No Rustirtg, or <0.01% of surface is rusted A None L Satisfactory9 Minor rusting, or <0.03% of surface is rusted B Uniform Surface Corrosion. M Spatter8 Isolated rust, <.01% of surface Is rusted C Pitting N Porosity7 Isolated rust, <.03% of surface is rusted D Concentration Cell Corrosion 0 Convexity / Concavity6 Extensive rusting, <1% of surface is rusted E Galvanic Corrosion P Cracks

5 Approximately 3% of the surface is rusted F Stress Corrosion Cracking Q Inciusicns

4 Approximately 10% of the surface is rusted G Erosion Corrosion R Incomplete Fusion3 Approximately 17% of the surface is rusted H Intergranular Corrosion S Incomplete Penetration2 Approximately 33% of the surface is rusted 1 Dealloying T Undercut

1 Approximately 50% of the surface Is rusted U Underfill

0 Approximately 100% of the surface is rusted V

w

Overlap

Unable to evaluate

i !

i !

M QUAbRANrr.. . 1 QUADRANT 2 1 1 V - QUADRANT | QUADRANT 4

INTERIOR RESERVOIR ROOF

SSPGfi; NACE.?>,; AWSi

ENACENACE !g|gS5PGSiS|S;NAGEipAWSIl^

L Imiwat4n>S8t,aMWMrit

Vents

Roof Panels

Roof Support

Roof Gussets

Painting Ring

Overall Coating Rating Good Average Blister Diameter NONE Average Pit Depth NONE

Coating Deficiencies: Blistering^ DeiaminationQ ChalkingQ Checking Q CrackingQ Growth | \ PinholesQ Staining Sags/Runs| j

INTERIOR RESERVOIR WALLS

Wall to Roof weld

Lower Ring Panels

Middle Ring Panels

Upper Ring Panels

Interior Ladder

i'- SSPC^.ir.:NACE!?ir=iAWS.

|L ;h

SSPC NACE AWS

11^

jlO JlDiioT

wtaoamafOKximssfs Imssnflnsssssnuts

il

iN/A N/A N/A

' SSPC" , NACEx AWS' -' L LVA'gfei'l ' ilc-ivagi L-tsajfe

SSPC NACE AWS

7

9

,9

9

-N/A

° III- 4P,. j 1D jB !|L 1N/A

Overall Coating Rating Good Average Blister Diameter <1/4" Average Pit Depth NONE

Coating Deficiencies: Blistering[71 DelaminationQ ChalkingQ Checking Q Cracking| | Growth \ | PtnholesQ Staining0 Sags/Runs I 1

INTERIOR RESERVOIR FLOOR

Perimeter Weld

Floor Panels

SSPC NACEiV-KAWSii SSPC NACE AWS SSPC NACE A\NS'

'10}MCSM«HSMUsn(iasan ntmawMBNCSHe^

iio ||a11 1fr—1

jio Ia 1

iirir~tL

L j

NACE

Overall Coating Rating Good Average Blister Diameter NONE Average Pit Depth NONE

Coating Deficiencies: BlisteringQ DelaminationQ ChalkingQ Checking Q CrackingQ Growth I I Pinholesn Staining [3 Sags/Runs I 1

DISCLAIMER

Liquid Engineering does not provide consulrirtg engineering services. Unless otherwise noted, the findings contained in this report were neither prepared nor reviewed by a licensedProfessional Engineer, but are based on experience, training and visual examination of the Dive Maintenance Technician

©Copyright 1998 - 2009 Uquid Engineering Corporation - Ail rights reserved

Job Number: 42427

Inspector: C. FROMM

Column Bases

Column to Roof

Liquid Engineering Corporation

Steel Potable Wate^ Reservoir Inspection Report

utility; EVERGREEN WATER AND SEWER

Dive Controller: J. ROBERTS

Tank: HORTON

Date: 775/2012

QUAORANTi;: qua6rant 2 QUADRANTS QUADRANT 4

INTERIOR RESERVOIR SUPPORT COLUMNSSSPC NACE AWS

{n/a "1|nm ITn/a I■ N/A j |n/A I^N/A'N/A ]|N/A.. J

SSPC NACE AWS

;|n/a |n/a |n/a hi!N/A Bn/A |lN/A 1|n/a In/a |n/a P

f^AN/A_

Ii^a"

jN/AIn/a

|N/A'1—MXMCTmeiiMI* -'t

liN/A

|n/aN/A

fN/A 1 N/A

N/A ̂ !N/A J

Overall Coating Rating — Average Blister Diameter Average Pit DepthCoating Deficiencies: Blistering^ DelaminationI I Chalking^ Checking Q CrackingQ Growth I I PinholesQ StainingQ Sags/Runsi

INTERIOR RESERVOIR PLUMBING COMPONENTS

Inlet Plumbing

Outlet Plumbing

Manways

Floor Drains

Interior Overflow

NACE • AWS

LflSiSSPCm- NACE ri:»:AWS« NACENACE

mm

EXTERIOR RESERVOIR ROOF

Vents

Roof Panels

Access Hatches

SSPC NACE^r AWS^-^

ItKaieraSosf 1 wwasdraca'ssaiJF/ w - [

■ |9 -" "--v Jj^B ̂ -"iiLj J*- 'jr

SSPC NACE AWS.—

'SSPC=iV-? NACEr^ii'jf AWSwi-.. SSPC NACE AWSr—r '! "" "If"'; i

i-N/A j4n/A HWA rIg "(b ]fr n■fi/A HN/A iIn/A

|N/A^f7N/A0.-.' jN/A j

^ 1■ |nM—i-

•N/A rtW/A—ri—^ir—1N/A HW r

Overall Coating Rating Good Average Blister Diameter NONE Average Pit Depth NONECoating Deficiencies: Blistering^ OelaminationQ ChalkingQ Checking Q CrackingQ Growth j | PinholesQ Staining Sags/Runs | |

EXTERIOR RESERVOIR WALLS

Wall to Roof Weld

Lower Ring Panels

Mid Ring Panels

Upper Ring Panels

Exterior Overflow

Overall Coating Rating Good„ „

SVSSPOffiiS NAGE^ajjl AWS^S

19', L--

SSPC NACE AWS ^'^^SSPC'̂ AWSW-./NACEf SSPC NACE AWS

9

N/A- fN/A-L !N/A-

Average Blister Diameter NONE Average Pit Depth NONECoating Deficiencies:, Blistering Q Delamination Q Chalking Q Checking Q Cracking Q Growth Q Pinholes Q Staining [/] Sags/Runs | |

FOOTINGS / FOUNDATIONFootings / Foundations: Satisfactory (3 Cracking Q Spelling 1 1 Erosion/Exposed Aggregate Q

"pr'excsssiVfij^Dieini^tci —

TOWER SUPPORT STRUCTURESTower Legs/Columns: SaflSfactoryJ LRiser Pipe: Satisfactory QRods & Turnbuckles: Satisfactory QLeg shoes/Brackets: Satisfactory f"]

Allgnmpnt — Settling —Alighmenr--— ' Frost Casing —

Turnbuckle Tension — Roa iensionn=«~-Coating — Rust/Corrosion —

Rust/Corrosion —Rust/Corrosion —

ff^er Pins/Rod Nuts —Pitti ng/cracKing-=-

DISCLAIMERLiquid Engineering does not provide consulting engineering services. Unless otherwise noted, the findings contained in this report were neither prepared nor reviewed by a licensed

Professional Engineer, but are based on experience, training and visual examination of the Dive Maintenance TechnicianOCopyright 1998 • 2009 Liquid Engineering Corporation - Ail rights reserved

It i

; i

i i

Liquid Engineering Corporation

Potable Water Reservoir Contamination, Health and Safety Report

Job Number; 42427

Inspector: C. FROMM

Utility: EVERGREEN WATER AND SEWER

Dive Controller: J. ROBERTS

Tank: HORTON

Date: 7/5/2012

Complies With: AWWA • OSHA • ANSI • NIOSH • NAVFAC • NFPAC

CONTAMINATION & HEALTH

Air Vents Type: Mushroom #: 1 Screen Condition(s): Good

Hatches Type: Round #: 1 Secured Properly: Yes Properly Sealed: Yes

Exterior Overflow Flapper: Yes Screen: No Gasket: No Condition: Good

H:" ~- ■"Garsket: — Prtptiiy b64led: —Roof to Wall Joint Welded: Yes Properly Sealed: YesRoof Integrity Holes: No Cracking: No Standing Water: NoWall Integrity Holes: No Cracking: NoManway Integrity Leaks: No Condition: Good

Water Clarity General Appearance: Good Odor: None

Floating Surface Debris Type: None Source: N/AtiypathMrFioating Covei——Condition; "Holesr— Tears:~

Telemetry Penetrations Properly Sealed: Yes

Exterior ladder

Overall Ladder

Vandal Guard

Ladder Raits & RungsRung Spacing & Depth

Rail Spacing & Size

Safety Climb System

Number & Locations

Ladder Attachments

Manwavs

Type and size

Support Structure

Number & Locations

Hatches

Hatch Type & Size

Hatch & Lid Up HeightBalcomes"8 irnS iUng

Deck / WalkwaysHand Rails

Toe Rail

Welds / Attachments

FACILITY SAFETY COMPLIANCE

Condition: Good #: 1 Offset Landing: No Height: 47Present: None -Vandal-Guatd Lucked: —^

Condition; Good Missing/Damaged Rungs: NoSpacing: 11 in. (max 12") Toe Depth: 8 in. (min 7")Width: 2 in. (min 2") Thickness: 3/8 \n. (min 1/4") Rail to Rail: 13.5 \r\.(min 16")

Wall: 1 Leg: Roof: Riser Pipe: Other:WELDED STEEL

Type: Round

Type: Bolted

Wall: 1

#: 1

Condition: Good

Roof: Riser Pipe:

Type: Round #; l

Hatch: 4 in, (min 4") Lid: 3

n

Condition:

Condition: —

Condition: —

Width

Height:

Size: 24 inches (24" - 18'x22" min)

Other:

Size: 23" in. (24"-24"xl5" min)

in. (min 2")

in. (min 42") No. Rails:

Roof

Safety Tie-Off Points

Antennas

Condition: Good

Type: Transmitting#: 1+

#: 1

DISCLAIMERLiquid Engineering does not provide consulting engineering services. Unless otherwise noted, the findings contained in this report were neither prepared nor reviewed by a licensedProfesstonal Engineer, but are based on experience, training and visual examination of the Dive Maintenance Technician

©Copyright 1998 • 2009 Uquid Engineering Corporation-Ail rights reserved

Job Number 42427

Quadrant 1

Liquid Engineering Corporation

Circular Tank Diagram / Information Worksheetutility Name EVERGREEN Vi/ATER AND SEWER Tank Name NORTON

Quadrant 2 Quadrant 3 Quadrant 4

-STAINING

•MINOR CONCENTRATlbN CELLS

-UNIFORM SURFACE CPRROSION

-BLISTERS, BROKEN BISTERS

->

ROOF Testing and Discrepancy Locations FLOOR

-STAINING

-UNIFORM SURFACE CORROSION

SKIFF

SKIFF /

SKIFF

SKIFF^X

\ \ SKIFF\ SKIFF \

\/ SKIFF

SKIFF / 1/ SKIFF /

SKIFF

Sediment Depth MeasurementsAverage Sediment Depth = The sum of ail measurements taken, "divided by the number of measurements taken

Avg. Depth SKIFF Cubic Yardage Sediment Type SAND

Plumbing & Structure locationPlumbing and structure codes

0=0utlet X=lnlet Z=Manway

V=Vent D=Drain S=Sump

L=Ladder H=Hatch P=Overflow

F=Float Level Indicator

T=Telemetry

Column Placement

Type of Column o □ IBase Structure LJ I

Top Structure n V IColumn Construction

DISOAIMERLiquid Engineering does not provide consulting engineering services. Unless otherwise noted, the findings contained in this report were neither prepared rror reviewed by a licensed

Professional Engineer, but are based on experience, training arv) visual examination of the Dive Maintenance TechnicianOCopyright 19^ • 2009 Uquid Engineering Corporation-AH rights reserved

Liquid Engineering Corporation

Circular Tank Diagram / NOT □ OFT \7] Coating Adhesionn Presence of lead □Job Number 42427 Utility Name EVERGREEN WATER AND SEWER

Quadrant 1

Tank Name MORTON

Quadrant 4

Coating Color SILVER

■

OxO o o o o o oROOF Testing and Discrepancy Locations BOWL

X X

Roof Color SILVER Bowl Co or

Pedesta Co or

Hydropillar Base Hydropil

■OOlSOAiMER

Uquid Engineering does not provide consuldng engineering services. Uniess otherwise noted, the findings contained in this report were neither prepared nor reviewed by a licensedProfessional Engineer, but are based on experience, training and visual examination of the Dive Maintenance Technician

OCopyrtght 1938 - 2009 Uquid Engineering Corporation - All rights reserved