sa plt ctlo slp t1311

12R1 Tank Inspection_External

SA-PLT-CTLO-SLP-T1311 5/28/2014

SUMMARY

• All UT data exceeds the minimum thickness requirements of API-12R1

• The next internal/external inspection is due by 5/28/2019

• Clean off foundation and remove any compacted soil/dirt in the gravel and address any area where there are spaces under the tank.

• Verify that the secondary containment is adequate per AB-1960

• Repair any damaged insulation and seal around nozzles and appurtenances to prevent CUI. DS14875887 UWWNNJ8205EXP

TANK DATA

Equip Name/Number SA-PLT-CTLO-SLP-T1311

Diameter ft. 30

Height ft. 16

BBL 2014

Current Activity OIL

Operation Status INACTIVE

Insulated YES

Painted YES

Inspection Openings NO

Is there a Floating Roof? NO

INSPECTION REPORT

Inspection Date 5/28/2014

Customer Rep ERIKA BAILEY

Area SAN ARDO

Latitude 35.96145408

Longitude -120.87636243

Report/IDMS Number DS14875887

Work Order # UWWNNJ8205EXP

Inspect Type IN-SERVICE TANK

Inspection Methods UT,VT

Requesting Party CHEVRON

Technician DANIEL RATNER

Equipment Description SWING TANK

Tank Type OTHER

Comments OVERFLOW TANK

Construction Method WELDED

VRU YES

Shell Insulated? YES

Roof Insulated? NO

How CRITICAL is this tank CAN RUN WITHOUT TANK.

Can it be bypassed? CAN BYPASS WITH SOME EFFORT.

Overall Tank Setting Condition FAIR

Containment CONCRETE WALL

Foundation GRAVEL

Gravel Band Intact YES

Comments PARTIALLY BURIED

Impact of Spill MEDIUM

Spill Detection NO

Above Grade NO

Wet Soil / Standing Liquids around Tank NO

Fill Methods AUTOMATIC/INTERMITTENT

Open Drain System NO

Overflow TO ANOTHER TANK

Alarms BEACON

Pumps YES

Level LEVEL SWITCHES

Other Patching YES

Holes in roof NO

Visible emissions from roof NO

Oil stains on/around varec hatches NO

Oil stains or Buildup in roof NO

Roof Sagging YES

Frangible Joint YES

FIELD NOTES

External Inspection

• API-653 was used as a guide for the VT inspection, Tmin calculated per API-12R1

• This is an overflow tank with a fully insulated shell

• There is a gravel foundation with an intact gravel band, though the band is partially buried by debris

• There is a ground wire on the north end

• The foundation under the tank is missing at the clean out

• The tank is shut in at this time

• Repairs to the roof were done recently and fresh paint is present where patches were installed

• Due to obstruction, access to the roof was not possible, only limited visual inspection from the catwalk

• There is a concrete wall for containment

• The level board cable is broken, though there are level switches installed Calculations

• Shell per API-12R1 calculations: 0.062”

• Corrosion Rate: 0.002” per year

• Remaining Life: >25 years Conclusion

• All UT data exceeds the minimum thickness requirements of API-12R1

• The next internal/external inspection is due by 5/28/2019

• Clean off foundation and remove any compacted soil/dirt in the gravel and address any area where there are spaces under the tank.

• Verify that the secondary containment is adequate per AB-1960

• Repair any damaged insulation and seal around nozzles and appurtenances to prevent CUI.

API-21R1 Tmin Calculations Ring 1

Min Yield

Material Stress(S) = 0.8Y 28800 A36 36000

Efficiency (E) 0.7 RT Unknown

Diameter (D) 29.75

Height (H) 16

Spec Gravity (G) 1

Absolute minimum t 0.062

Ring # 1

t=((2.6*D*(H-1)*G)/(S*E))*0.75

t=((2.6*29.75*(16-1)*1.0)/(28800*0.70))*0.75

t=( 1160.25

)*0.75

20160

t= 0.043 < 0.062

t= 0.062

API 653 Checklist

FOUNDATION

Inspect for cavities under foundation and vegetation against bottom of tank. CONCERN

Comments SEVERAL CAVITIES

Check that runoff rainwater from the shell drains away from tank. ACCEPTABLE

Check for settlement around perimeter of tank. ACCEPTABLE

Look for areas where leaching of oil has left rock filler exposed, which indicates hydrocarbon leakage. ACCEPTABLE

Check for settlement into the base which would direct runoff rain water under the tank rather than away from it. ACCEPTABLE

Presence of crushed rock under the steel bottom usually results in severe underside corrosion. Make a note to do additional bottom plate examination (ultrasonic, hammer testing, or turning of coupons) when the tank is out of service. ACCEPTABLE

Check site for drainage away from the tank and associated piping and manifolds. ACCEPTABLE

Check operating condition of the dike drains. ACCEPTABLE

Inspect the area for buildup of trash, vegetation, and other inflammables buildup. CONCERN

Comments DEBRIS ON GROUND

SHELLS

Comments SHELL IS FULLY INSULATED

SHELL APPURTENANCES

Inspect for cracks or signs of leakage on weld joint at nozzles, man ways, and reinforcing plates. ACCEPTABLE

Comments TANK IS SHUT IN AT THIS TIME

Inspect for flange leaks and leaks around bolting. ACCEPTABLE

Inspect sealing of insulation around man ways and nozzles. ACCEPTABLE

Inspect manifold piping, flanges, and valves for leaks. ACCEPTABLE

Check for anchored piping which would be hazardous to the tank shell or bottom connections during earth movement. ACCEPTABLE

Check for adequate thermal pressure relief of piping to the tank. ACCEPTABLE

Inspect condition of board and legibility of board-type auto gauges. ACCEPTABLE

Comments CABLE AND INDICATOR ARE REMOVED

Inspect for proper mounting flange and support. ACCEPTABLE

Inspect for leakage. ACCEPTABLE

Check for leaks at threaded and flanged joints. ACCEPTABLE

ROOFS

Visually inspect for paint failure, holes, pitting, and corrosion product on the roof deck. ACCEPTABLE

Comments ONLY FROM CATWALK

Look for indication of standing water. (Significant sagging of fixed roof deck indicates potential rafter failure. Large standing water areas on a floating roof indicate inadequate drainage design or, if to one side, a non-level roof with possible leaking pontoons.) ACCEPTABLE

ROOF APPURTENANCES

Check the hatch for corrosion and missing bolts. ACCEPTABLE

ACCESSWAYS

Identify and report type (steel pipe, galvanized pipe, square tube, and angle) and size of handrails. ACCEPTABLE

Comments STEEL

Inspect for pitting and holes, paint failure. ACCEPTABLE

Inspect attachment welds. ACCEPTABLE

Identify cold joints and sharp edges. Inspect the handrails and mid-rails. ACCEPTABLE

Inspect safety drop bar (or safety chain) for corrosion, functioning, and length. ACCEPTABLE

Inspect frame for corrosion and paint failure. ACCEPTABLE

Inspect the surface that deck plate or grating rests on, for thinning and holes. ACCEPTABLE

Inspect deck plate for corrosion-caused thinning or holes (not drain holes) and paint failure. ACCEPTABLE

Inspect plate-to-frame weld for rust scale buildup. ACCEPTABLE

Inspect grating for corrosion-caused thinning of bars and failure of welds. ACCEPTABLE

UT Data

TECHNIQUES

Ultrasonic Instrument 38 DL PLUS

Serial Number 13068806

Couplant MFG APPLS RTD

Couplant Material CELLULOSE

Calibration Frequency Minutes 30

Transducer 1 Serial 882979

Transducer 1 Frequency (Mhz.) 5

Transducer 1 Size (In.) .375

Transducer 1 Type DUAL

Transducer 1 Cable Length (Ft) 5

Connect Type LIMO TO MICRODOT

Process Type MANUAL

Contact Type CONTACT

Gain (db.) 66

Waveform 1/2 NEGATIVE

Scanning Speed (In. per second) 6

Scanning Pattern SPOT

Screen Range 2"

Gate Logic EDGE

Presentation Type A SCAN

Calibration Block 5 STEP WEDGE

Material CARBON STEEL

Thickness Range .1-.5

Block Serial 246011

Cal Block 1 .1

Cal Block 2 .2

Cal Block 3 .3

Cal Block 4 .4

Cal Block 5 .5

CALIBRATIONS

LAST LOCATION DATE ACCEPTABLE AMBIENT SURFACE COMMENTS

START OF INSPECTION

5/28/2014 TIME: 12:59 YES 90 85 -

42 5/28/2014 TIME: 13:29 YES 90 85 -

END OF INSPECTION

5/28/2014 TIME: 13:35 YES 90 85 -

READINGS

TML # DATE LOCATION SIZE THICKNESS COMMENTS

1 5/28/2014 TIME: 13:34 S1-A-0 30 0.239 -

2 5/28/2014 TIME: 13:09 S1-A-45 30 0.251 -

3 5/28/2014 TIME: 13:010 S1-A-90 30 0.247 -

4 5/28/2014 TIME: 13:11 S1-A-135 30 0.246 -

5 5/28/2014 TIME: 13:11 S1-A-180 30 0.243 -

6 5/28/2014 TIME: 13:11 S1-A-225 30 0.24 -

7 5/28/2014 TIME: 13:11 S1-A-270 30 0.245 -

8 5/28/2014 TIME: 13:12 S1-A-315 30 0.245 -

9 5/28/2014 TIME: 13:13 S1-B-0 30 0.25 -

10 5/28/2014 TIME: 13:13 S1-B-45 30 0.247 -

11 5/28/2014 TIME: 13:13 S1-B-90 30 0.243 -

12 5/28/2014 TIME: 13:14 S1-B-135 30 0.244 -

13 5/28/2014 TIME: 13:14 S1-B-180 30 0.239 -

14 5/28/2014 TIME: 13:14 S1-B-225 30 0.235 -

15 5/28/2014 TIME: 13:15 S1-B-270 30 0.237 -

16 5/28/2014 TIME: 13:15 S1-B-315 30 0.254 -

17 5/28/2014 TIME: 13:15 S1-C-0 30 0.239 -

18 5/28/2014 TIME: 13:16 S1-C-45 30 0.245 -

19 5/28/2014 TIME: 13:16 S1-C-90 30 0.25 -

20 5/28/2014 TIME: 13:16 S1-C-135 30 0.249 -

21 5/28/2014 TIME: 13:17 S1-C-180 30 0.235 -

22 5/28/2014 TIME: 13:17 S1-C-225 30 0.251 -

23 5/28/2014 TIME: 13:22 S1-C-270 30 0.249 -

24 5/28/2014 TIME: 13:22 S1-C-315 30 0.239 -

25 5/28/2014 TIME: 13:23 S1-N1-0 6 0.241 -

26 5/28/2014 TIME: 13:23 S1-N1-90 6 0.245 -

27 5/28/2014 TIME: 13:24 S1-N1-180 6 0.239 -

28 5/28/2014 TIME: 13:24 S1-N1-270 6 0.242 -

29 5/28/2014 TIME: 13:24 S1-MW-0 34 0.381 -

30 5/28/2014 TIME: 13:25 S1-MW-90 34 0.383 -

31 5/28/2014 TIME: 13:25 S1-MW-180 34 0.383 -

32 5/28/2014 TIME: 13:25 S1-MW-270 34 0.383 -

33 5/28/2014 TIME: 13:26 S1-N7-0 6 0.239 -

34 5/28/2014 TIME: 13:27 S1-N7-90 6 0.237 -

35 5/28/2014 TIME: 13:27 S1-N7-180 6 0.242 -

36 5/28/2014 TIME: 13:27 S1-N7-270 6 0.24 -

37 5/28/2014 TIME: 13:28 S1-N10-0 6 0.242 -

38 5/28/2014 TIME: 13:28 S1-N10-90 6 0.245 -

39 5/28/2014 TIME: 13:28 S1-N10-180 6 0.243 -

40 5/28/2014 TIME: 13:28 S1-N10-270 6 0.243 -

41 5/28/2014 TIME: 13:29 S1-CO-0 24 0.306 -

42 5/28/2014 TIME: 13:29 S1-CO-90 24 0.31 -

API Examiner API Inspector review

Name: Daniel Ratner Jerry P. Van Heel

Date: 6/1/2014 06/13/2014

Cert #: Examiner API Cert# 21573

On location in the San Ardo C.O.T.F.

Tank 1311

There is a concrete wall for containment

The gravel band appears to be intact though there is debris partially burying the area

There is empty foundation space under the clean out

Ground wire

Broken cable on level board

There is a stairway leading to the roof area

The scaffolding was not signed off for safety and there was not enough room to get around it for a close

up roof inspection

Patches were recently added to the roof

Here is a better look at one of the patches

----------------------------------------------------------------------------------------------- Applus RTD Valley Industrial X-Ray and Inspection Services Inc. UltraPIPE Inspection Data Management -----------------------------------------------------------------------------------------------

Caution TML Logic: TML Corrosion Rate > 15.0 MPY .OR. TML Remaining Life < 1.00 Years. New Survey by: Date:

New Survey Report (Thickness in Inches) Report Date: 05/29/2014 07:17:01 Unit: SA_TANK Unit: SA_TANK Eq/Circ ID: PLT-CTLO-T1311 Eq/Circ ID: PLT-CTLO-T1311 Eq Type: TANK Description: Eq Type: TANK Class: UT,VT Class: RBI: RBI: TML No Location Component

Code Size Material

Code Retire Thick

Last Thick

Ctn. or In. TML

New Thick

Note

1.01 S1-A-0 02-SLPT1311 30.00 0004 0.062 0.239 No 2.01 S1-A-45 02-SLPT1311 30.00 0004 0.062 0.251 No 3.01 S1-A-90 02-SLPT1311 30.00 0004 0.062 0.247 No 4.01 S1-A-135 02-SLPT1311 30.00 0004 0.062 0.246 No 5.01 S1-A-180 02-SLPT1311 30.00 0004 0.062 0.243 No 6.01 S1-A-225 02-SLPT1311 30.00 0004 0.062 0.240 No 7.01 S1-A-270 02-SLPT1311 30.00 0004 0.062 0.245 No 8.01 S1-A-315 02-SLPT1311 30.00 0004 0.062 0.245 No 9.01 S1-B-0 02-SLPT1311 30.00 0004 0.062 0.250 No 10.01 S1-B-45 02-SLPT1311 30.00 0004 0.062 0.247 No 11.01 S1-B-90 02-SLPT1311 30.00 0004 0.062 0.243 No 12.01 S1-B-135 02-SLPT1311 30.00 0004 0.062 0.244 No 13.01 S1-B-180 02-SLPT1311 30.00 0004 0.062 0.239 No 14.01 S1-B-225 02-SLPT1311 30.00 0004 0.062 0.235 No 15.01 S1-B-270 02-SLPT1311 30.00 0004 0.062 0.237 No 16.01 S1-B-315 02-SLPT1311 30.00 0004 0.062 0.254 No 17.01 S1-C-0 02-SLPT1311 30.00 0004 0.062 0.239 No 18.01 S1-C-45 02-SLPT1311 30.00 0004 0.062 0.245 No 19.01 S1-C-90 02-SLPT1311 30.00 0004 0.062 0.250 No 20.01 S1-C-135 02-SLPT1311 30.00 0004 0.062 0.249 No 21.01 S1-C-180 02-SLPT1311 30.00 0004 0.062 0.235 No 22.01 S1-C-225 02-SLPT1311 30.00 0004 0.062 0.251 No 23.01 S1-C-270 02-SLPT1311 30.00 0004 0.062 0.249 No 24.01 S1-C-315 02-SLPT1311 30.00 0004 0.062 0.239 No 25.01 S1-N1-0 07-06S40 6.00 0035 R 0.134 0.241 No 26.01 S1-N1-90 07-06S40 6.00 0035 R 0.134 0.245 No 27.01 S1-N1-180 07-06S40 6.00 0035 R 0.134 0.239 No 28.01 S1-N1-270 07-06S40 6.00 0035 R 0.134 0.242 No 29.01 S1-MW-0 07-34MW 34.00 0004 0.250 0.381 No 30.01 S1-MW-90 07-34MW 34.00 0004 0.250 0.383 No 31.01 S1-MW-180 07-34MW 34.00 0004 0.250 0.383 No 32.01 S1-MW-270 07-34MW 34.00 0004 0.250 0.383 No 33.01 S1-N7-0 07-06S40 6.00 0035 R 0.134 0.239 No 34.01 S1-N7-90 07-06S40 6.00 0035 R 0.134 0.237 No 35.01 S1-N7-180 07-06S40 6.00 0035 R 0.134 0.242 No 36.01 S1-N7-270 07-06S40 6.00 0035 R 0.134 0.240 No 37.01 S1-N10-0 07-06S40 6.00 0035 R 0.134 0.242 No 38.01 S1-N10-90 07-06S40 6.00 0035 R 0.134 0.245 No 39.01 S1-N10-180 07-06S40 6.00 0035 R 0.134 0.243 No 40.01 S1-N10-270 07-06S40 6.00 0035 R 0.134 0.243 No 41.01 S1-CO-0 07-24CO 24.00 0004 0.125 0.306 No 42.01 S1-CO-90 07-24CO 24.00 0004 0.125 0.310 No

------------------------------------------------------------------------------------------------------------------------------------------ Applus RTD Valley Industrial X-Ray and Inspection Services Inc. UltraPIPE Inspection Data Management ------------------------------------------------------------------------------------------------------------------------------------------

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Corrosion Monitoring Eq/Circ ID Analysis Report (Report in Inches, Corrosion Rates in MPY) Report Date: 05/29/2014 07:17:19 Analysis: Straight Line Unit: SA_TANK Flange Rating: 0 lb/in² Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: Summary: Group Name: Group description: Insp. Due Date = 05/28/2019 RCR = 2.0 MPY 0 C.A. Status: No Pred. Ret. Date = 06/15/2063 Rem. Life (from last survey 05/28/2014) = 49.0 yrs Total Caution TMLs = 0 TML Number

Location Description

CtnTML

First Survey Thick Nt

First Survey Date

Previous Survey Thick Nt

Previous Survey Date

Last Survey Thick Nt

Last Survey Date

Short Term Rate

Long Term Rate

Best Fit Rate

Max Hist CR

Retirement Thickness

Rep TML CR

TML Retirement Date

TML Inspection Due Date

1.01 S1-A-0 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 2.01 S1-A-45 N 0.250 NM 01/01/1994 N/A N/A 0.251 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/27/2108 05/28/2019 3.01 S1-A-90 N 0.250 NM 01/01/1994 N/A N/A 0.247 05/28/2014 N/A 0.1 N/A 0.1 0.062 S 2.0 11/28/2106 05/28/2019 4.01 S1-A-135 N 0.250 NM 01/01/1994 N/A N/A 0.246 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 05/29/2106 05/28/2019 5.01 S1-A-180 N 0.250 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 0.3 N/A 0.3 0.062 S 2.0 11/27/2104 05/28/2019 6.01 S1-A-225 N 0.250 NM 01/01/1994 N/A N/A 0.240 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 05/29/2103 05/28/2019 7.01 S1-A-270 N 0.250 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 11/27/2105 05/28/2019 8.01 S1-A-315 N 0.250 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 11/27/2105 05/28/2019 9.01 S1-B-0 N 0.250 NM 01/01/1994 N/A N/A 0.250 05/28/2014 N/A -0.0 N/A 0.0 0.062 S 2.0 05/29/2108 05/28/2019 10.01 S1-B-45 N 0.250 NM 01/01/1994 N/A N/A 0.247 05/28/2014 N/A 0.1 N/A 0.1 0.062 S 2.0 11/28/2106 05/28/2019 11.01 S1-B-90 N 0.250 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 0.3 N/A 0.3 0.062 S 2.0 11/27/2104 05/28/2019 12.01 S1-B-135 N 0.250 NM 01/01/1994 N/A N/A 0.244 05/28/2014 N/A 0.3 N/A 0.3 0.062 S 2.0 05/29/2105 05/28/2019 13.01 S1-B-180 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 14.01 S1-B-225 N 0.250 NM 01/01/1994 N/A N/A 0.235 05/28/2014 N/A 0.7 N/A 0.7 0.062 S 2.0 11/27/2100 05/28/2019 15.01 S1-B-270 N 0.250 NM 01/01/1994 N/A N/A 0.237 05/28/2014 N/A 0.6 N/A 0.6 0.062 S 2.0 11/27/2101 05/28/2019 16.01 S1-B-315 N 0.250 NM 01/01/1994 N/A N/A 0.254 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 05/29/2110 05/28/2019 17.01 S1-C-0 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 18.01 S1-C-45 N 0.250 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 0.2 N/A 0.2 0.062 S 2.0 11/27/2105 05/28/2019 19.01 S1-C-90 N 0.250 NM 01/01/1994 N/A N/A 0.250 05/28/2014 N/A -0.0 N/A 0.0 0.062 S 2.0 05/29/2108 05/28/2019 20.01 S1-C-135 N 0.250 NM 01/01/1994 N/A N/A 0.249 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/28/2107 05/28/2019 21.01 S1-C-180 N 0.250 NM 01/01/1994 N/A N/A 0.235 05/28/2014 N/A 0.7 N/A 0.7 0.062 S 2.0 11/27/2100 05/28/2019 22.01 S1-C-225 N 0.250 NM 01/01/1994 N/A N/A 0.251 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/27/2108 05/28/2019 23.01 S1-C-270 N 0.250 NM 01/01/1994 N/A N/A 0.249 05/28/2014 N/A 0.0 N/A 0.0 0.062 S 2.0 11/28/2107 05/28/2019 24.01 S1-C-315 N 0.250 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 0.5 N/A 0.5 0.062 S 2.0 11/28/2102 05/28/2019 25.01 S1-N1-0 N 0.280 NM 01/01/1994 N/A N/A 0.241 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 11/27/2067 05/28/2019 26.01 S1-N1-90 N 0.280 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 1.7 N/A 1.7 0.134 S 2.0 11/26/2069 05/28/2019 27.01 S1-N1-180 N 0.280 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 2.0 N/A 2.0 0.134 S 2.0 11/27/2066 05/28/2019 28.01 S1-N1-270 N 0.280 NM 01/01/1994 N/A N/A 0.242 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 05/27/2068 05/28/2019 29.01 S1-MW-0 N 0.375 NM 01/01/1994 N/A N/A 0.381 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/27/2079 05/28/2019 30.01 S1-MW-90 N 0.375 NM 01/01/1994 N/A N/A 0.383 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/26/2080 05/28/2019 31.01 S1-MW-180 N 0.375 NM 01/01/1994 N/A N/A 0.383 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/26/2080 05/28/2019 32.01 S1-MW-270 N 0.375 NM 01/01/1994 N/A N/A 0.383 05/28/2014 N/A 0.0 N/A 0.0 0.250 S 2.0 11/26/2080 05/28/2019 33.01 S1-N7-0 N 0.280 NM 01/01/1994 N/A N/A 0.239 05/28/2014 N/A 2.0 N/A 2.0 0.134 S 2.0 11/27/2066 05/28/2019 34.01 S1-N7-90 N * 0.280 NM 01/01/1994 N/A N/A 0.237 05/28/2014 N/A 2.1 N/A 2.1 0.134 S 2.1 06/15/2063 05/28/2019 35.01 S1-N7-180 N 0.280 NM 01/01/1994 N/A N/A 0.242 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 05/27/2068 05/28/2019 36.01 S1-N7-270 N 0.280 NM 01/01/1994 N/A N/A 0.240 05/28/2014 N/A 2.0 N/A 2.0 0.134 S 2.0 05/28/2067 05/28/2019 37.01 S1-N10-0 N 0.280 NM 01/01/1994 N/A N/A 0.242 05/28/2014 N/A 1.9 N/A 1.9 0.134 S 2.0 05/27/2068 05/28/2019 38.01 S1-N10-90 N 0.280 NM 01/01/1994 N/A N/A 0.245 05/28/2014 N/A 1.7 N/A 1.7 0.134 S 2.0 11/26/2069 05/28/2019 39.01 S1-N10-180 N 0.280 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 1.8 N/A 1.8 0.134 S 2.0 11/26/2068 05/28/2019


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TML Number


CtnTML

First Survey Thick Nt

First Survey Date

Previous Survey Thick Nt

Previous Survey Date

Last Survey Thick Nt

Last Survey Date

Short Term Rate

Long Term Rate

Best Fit Rate

Max Hist CR


Rep TML CR

TML Retirement Date

TML Inspection Due Date

40.01 S1-N10-270 N 0.280 NM 01/01/1994 N/A N/A 0.243 05/28/2014 N/A 1.8 N/A 1.8 0.134 S 2.0 11/26/2068 05/28/2019 41.01 S1-CO-0 N 0.375 NM 01/01/1994 N/A N/A 0.306 05/28/2014 N/A 3.4 N/A 3.4 0.125 S 3.4 08/22/2067 05/28/2019 42.01 S1-CO-90 N 0.375 NM 01/01/1994 N/A N/A 0.310 05/28/2014 N/A 3.2 N/A 3.2 0.125 S 3.2 03/20/2072 05/28/2019


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(Report in Inches, Corrosion Rates in MPY) Report Date: 05/29/2014 07:17:20 Analysis: Straight Line Unit: SA_TANK Flange Rating: 0 lb/in² Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: -------------------------------------------------------------------------------------------------------------------------------------------------------------- TML Corrosion Rates are each the maximum of: (A) -- Calculated Corrosion Rates x 1.00 : Varies (B) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate is the Maximum of: (A) -- Average Corrosion Rate x 1.10 : Not Used. (B) -- Average Max 25.0% of TMLs, Min of 2 : Not Used. (C) -- Formula Corrosion Rate (Sigma = 1.28) : Not Used. (D) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate = 2.0 MPY TML thickness readings have not been compensated for high Temperatures. TML thickness readings have not been compensated for growths. TML Life calculations are based on the Representative TML Corrosion Rate using Short Term and Long Term Corrosion Rates. Nominal thickness is used for TML corrosion rate calculations with less than 3 surveys. Minimum time between inspections required for corrosion rate calculation is 6 months. TML Inspection Interval is: (A) -- Minimum( TML Life / 2.00, 5.00 years ) Eq/Circ ID Last Survey Date is based on the LAST of the last 0% of TML survey dates (Min 1). Eq/Circ ID Estimated life = 49.0 years from the most recent survey date. (Estimated Life is based on the average of the earliest 0% (Min 1) TML retirement dates.) Predicted Eq/Circ ID Retirement date is 06/15/2063 Recommended Eq/Circ UT/RT Inspection Date is 05/28/2019 UT/RT Inspection Interval is the minimum( Remaining life / 2.0, 5.00 years ). Caution TML Logic: TML Corrosion Rate > 15.0 MPY .OR. TML Remaining Life < 1.00 Years. There are 0 Caution TMLs in this Eq/Circ ID.


Corrosion Monitoring Fill Height Analysis (Thickness in Inches, Height in feet) Report Date: 05/29/2014 07:17:38 Unit: SA_TANK Flange Rating: N/A Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: TML No. Location Ctn

TML Retirement Date


Last Thick

Last Date Fill Height

Minimum Fill Ht

1.01 S1-A-0 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 2.01 S1-A-45 N 11/27/2108 0.062 S 0.251 05/28/2014 81.10 3.01 S1-A-90 N 11/28/2106 0.062 S 0.247 05/28/2014 79.80 4.01 S1-A-135 N 05/29/2106 0.062 S 0.246 05/28/2014 79.50 5.01 S1-A-180 N 11/27/2104 0.062 S 0.243 05/28/2014 78.50 6.01 S1-A-225 N 05/29/2103 0.062 S 0.240 05/28/2014 77.60 7.01 S1-A-270 N 11/27/2105 0.062 S 0.245 05/28/2014 79.20 8.01 S1-A-315 N 11/27/2105 0.062 S 0.245 05/28/2014 79.20 9.01 S1-B-0 N 05/29/2108 0.062 S 0.250 05/28/2014 80.80 10.01 S1-B-45 N 11/28/2106 0.062 S 0.247 05/28/2014 79.80 11.01 S1-B-90 N 11/27/2104 0.062 S 0.243 05/28/2014 78.50 12.01 S1-B-135 N 05/29/2105 0.062 S 0.244 05/28/2014 78.80 13.01 S1-B-180 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 14.01 S1-B-225 N 11/27/2100 0.062 S 0.235 05/28/2014 76.00 * 15.01 S1-B-270 N 11/27/2101 0.062 S 0.237 05/28/2014 76.60 16.01 S1-B-315 N 05/29/2110 0.062 S 0.254 05/28/2014 82.00 17.01 S1-C-0 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 18.01 S1-C-45 N 11/27/2105 0.062 S 0.245 05/28/2014 79.20 19.01 S1-C-90 N 05/29/2108 0.062 S 0.250 05/28/2014 80.80 20.01 S1-C-135 N 11/28/2107 0.062 S 0.249 05/28/2014 80.40 21.01 S1-C-180 N 11/27/2100 0.062 S 0.235 05/28/2014 76.00 * 22.01 S1-C-225 N 11/27/2108 0.062 S 0.251 05/28/2014 81.10 23.01 S1-C-270 N 11/28/2107 0.062 S 0.249 05/28/2014 80.40 24.01 S1-C-315 N 11/28/2102 0.062 S 0.239 05/28/2014 77.20 25.01 S1-N1-0 N 11/27/2067 0.134 S 0.241 05/28/2014 N/A 26.01 S1-N1-90 N 11/26/2069 0.134 S 0.245 05/28/2014 N/A 27.01 S1-N1-180 N 11/27/2066 0.134 S 0.239 05/28/2014 N/A 28.01 S1-N1-270 N 05/27/2068 0.134 S 0.242 05/28/2014 N/A 29.01 S1-MW-0 N 11/27/2079 0.250 S 0.381 05/28/2014 N/A 30.01 S1-MW-90 N 11/26/2080 0.250 S 0.383 05/28/2014 N/A 31.01 S1-MW-180 N 11/26/2080 0.250 S 0.383 05/28/2014 N/A 32.01 S1-MW-270 N 11/26/2080 0.250 S 0.383 05/28/2014 N/A 33.01 S1-N7-0 N 11/27/2066 0.134 S 0.239 05/28/2014 N/A 34.01 S1-N7-90 N 06/15/2063 0.134 S 0.237 05/28/2014 N/A 35.01 S1-N7-180 N 05/27/2068 0.134 S 0.242 05/28/2014 N/A 36.01 S1-N7-270 N 05/28/2067 0.134 S 0.240 05/28/2014 N/A 37.01 S1-N10-0 N 05/27/2068 0.134 S 0.242 05/28/2014 N/A 38.01 S1-N10-90 N 11/26/2069 0.134 S 0.245 05/28/2014 N/A 39.01 S1-N10-180 N 11/26/2068 0.134 S 0.243 05/28/2014 N/A 40.01 S1-N10-270 N 11/26/2068 0.134 S 0.243 05/28/2014 N/A 41.01 S1-CO-0 N 08/22/2067 0.125 S 0.306 05/28/2014 N/A 42.01 S1-CO-90 N 03/20/2072 0.125 S 0.310 05/28/2014 N/A


(Thickness in Inches, Height in feet) Report Date: 05/29/2014 07:17:39 Unit: SA_TANK Flange Rating: N/A Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: -------------------------------------------------------------------------------------------------- Report Summary: Eq/Circ ID Minimum Fill Height: 76 ft at TML number 14.01

-------------------------------------------------------------------------------------------------- Applus RTD Valley Industrial X-Ray and Inspection Services Inc. UltraPIPE Inspection Data Management --------------------------------------------------------------------------------------------------

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Predicted Corroded Thickness and Fill Height Analysis Report Report Date: 05/29/2014 07:17:30 (Thickness in Inches, Height in feet) Analysis: Straight Line Unit: SA_TANK Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: TML Number


CtnTML

Last Survey Thick NT

Last Survey Date

Corr. Rate

Predicted Date

Pred. Thick

Pred. Fill Ht

Min. Fill Ht

1.01 S1-A-0 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 2.01 S1-A-45 N 0.251 05/28/2014 2.0 05/28/2019 0.241 76.90 3.01 S1-A-90 N 0.247 05/28/2014 2.0 05/28/2019 0.237 75.60 4.01 S1-A-135 N 0.246 05/28/2014 2.0 05/28/2019 0.236 75.30 5.01 S1-A-180 N 0.243 05/28/2014 2.0 05/28/2019 0.233 74.30 6.01 S1-A-225 N 0.240 05/28/2014 2.0 05/28/2019 0.230 73.40 7.01 S1-A-270 N 0.245 05/28/2014 2.0 05/28/2019 0.235 75.00 8.01 S1-A-315 N 0.245 05/28/2014 2.0 05/28/2019 0.235 75.00 9.01 S1-B-0 N 0.250 05/28/2014 2.0 05/28/2019 0.240 76.60 10.01 S1-B-45 N 0.247 05/28/2014 2.0 05/28/2019 0.237 75.60 11.01 S1-B-90 N 0.243 05/28/2014 2.0 05/28/2019 0.233 74.30 12.01 S1-B-135 N 0.244 05/28/2014 2.0 05/28/2019 0.234 74.60 13.01 S1-B-180 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 14.01 S1-B-225 N 0.235 05/28/2014 2.0 05/28/2019 0.225 71.80 * 15.01 S1-B-270 N 0.237 05/28/2014 2.0 05/28/2019 0.227 72.40 16.01 S1-B-315 N 0.254 05/28/2014 2.0 05/28/2019 0.244 77.80 17.01 S1-C-0 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 18.01 S1-C-45 N 0.245 05/28/2014 2.0 05/28/2019 0.235 75.00 19.01 S1-C-90 N 0.250 05/28/2014 2.0 05/28/2019 0.240 76.60 20.01 S1-C-135 N 0.249 05/28/2014 2.0 05/28/2019 0.239 76.20 21.01 S1-C-180 N 0.235 05/28/2014 2.0 05/28/2019 0.225 71.80 * 22.01 S1-C-225 N 0.251 05/28/2014 2.0 05/28/2019 0.241 76.90 23.01 S1-C-270 N 0.249 05/28/2014 2.0 05/28/2019 0.239 76.20 24.01 S1-C-315 N 0.239 05/28/2014 2.0 05/28/2019 0.229 73.10 25.01 S1-N1-0 N 0.241 05/28/2014 2.0 05/28/2019 0.231 N/A 26.01 S1-N1-90 N 0.245 05/28/2014 2.0 05/28/2019 0.235 N/A 27.01 S1-N1-180 N 0.239 05/28/2014 2.0 05/28/2019 0.229 N/A 28.01 S1-N1-270 N 0.242 05/28/2014 2.0 05/28/2019 0.232 N/A 29.01 S1-MW-0 N 0.381 05/28/2014 2.0 05/28/2019 0.371 N/A 30.01 S1-MW-90 N 0.383 05/28/2014 2.0 05/28/2019 0.373 N/A 31.01 S1-MW-180 N 0.383 05/28/2014 2.0 05/28/2019 0.373 N/A 32.01 S1-MW-270 N 0.383 05/28/2014 2.0 05/28/2019 0.373 N/A 33.01 S1-N7-0 N 0.239 05/28/2014 2.0 05/28/2019 0.229 N/A 34.01 S1-N7-90 N * 0.237 05/28/2014 2.1 05/28/2019 0.227 N/A 35.01 S1-N7-180 N 0.242 05/28/2014 2.0 05/28/2019 0.232 N/A 36.01 S1-N7-270 N 0.240 05/28/2014 2.0 05/28/2019 0.230 N/A 37.01 S1-N10-0 N 0.242 05/28/2014 2.0 05/28/2019 0.232 N/A 38.01 S1-N10-90 N 0.245 05/28/2014 2.0 05/28/2019 0.235 N/A 39.01 S1-N10-180 N 0.243 05/28/2014 2.0 05/28/2019 0.233 N/A 40.01 S1-N10-270 N 0.243 05/28/2014 2.0 05/28/2019 0.233 N/A 41.01 S1-CO-0 N 0.306 05/28/2014 3.4 05/28/2019 0.289 N/A 42.01 S1-CO-90 N 0.310 05/28/2014 3.2 05/28/2019 0.294 N/A

-------------------------------------------------------------------------------------------------- Applus RTD Valley Industrial X-Ray and Inspection Services Inc. UltraPIPE Inspection Data Management --------------------------------------------------------------------------------------------------

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Corrosion Monitoring Eq/Circ ID Analysis Report Report Date: 05/29/2014 07:17:31 (Report in Inches, Corrosion Rates in MPY) Analysis: Straight Line Unit: SA_TANK Flange Rating: 0 lb/in² Eq/Circ ID: PLT-CTLO-T1311 Design Fill Ht: 16.0 ft Eq Type: TANK Description: Design Temp: 0 °F Class: UT,VT RBI: ------------------------------------------------------------------------------------------------------------ TML Corrosion Rates are each the maximum of: (A) -- Calculated Corrosion Rates x 1.00 : Varies (B) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate is the Maximum of: (A) -- Average Corrosion Rate x 1.10 : Not Used. (B) -- Average Max 25.0% of TMLs, Min of 2 : Not Used. (C) -- Formula Corrosion Rate (Sigma = 1.28) : Not Used. (D) -- Default Corrosion Rate : 2.0 MPY Representative Corrosion Rate = 2.0 MPY TML thickness readings have not been compensated for high Temperatures. TML thickness readings have not been compensated for growths. TML Life calculations are based on the Representative TML Corrosion Rate using Short Term and Long Term Corrosion Rates. Nominal thickness is used for TML corrosion rate calculations with less than 3 surveys. Minimum time between inspections required for corrosion rate calculation is 6 months. TML Inspection Interval is: (A) -- Minimum( TML Life / 2.00, 5.00 years ) Eq/Circ ID Last Survey Date is based on the LAST of the last 0% of TML survey dates (Min 1). Eq/Circ ID Estimated life = 49.0 years from the most recent survey date. (Estimated Life based on the ave of the earliest 0% (Min 1) TML retirement dates.) Predicted Eq/Circ ID Retirement date is 06/15/2063 Recommended Eq/Circ UT/RT Inspection Date is 05/28/2019 UT/RT Inspection Interval is the minimum( Remaining life / 2.0, 5.00 years ). Caution TML Logic: TML Corrosion Rate > 15.0 MPY .OR. TML Remaining Life < 1.00 Years. There are 0 Caution TMLs in this Eq/Circ ID.

--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 1.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 02-SLPT1311Material Code: 0004 Design Temp: 0.0 °FMSpec: A 36 GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in S = Min(0.80*MYS, 0.429*MTS) = (24882 lb/in²) E = Quality Factor, long weld joint factor (1.00) D = Outside Diameter (30.00 ft) H = Maximum Liquid Height (16.00 ft) G = Specific Gravity (1.000)

Welded Shell - 1st and 2nd Course

2.6*D*(H-1)*G 2.6*30.00*(16.00 - 1)*1.000 t = ------------- = ----------------------------- = 0.047 in S * E 24882 * 1.00

Due to Structural Requirements (Component Code Table) T-Min = 0.062 in

--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 25.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 07-06S40Material Code: 0035 R Design Temp: 0.0 °FMSpec: A 106 B GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in

6" Nozzle t = 0


--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 29.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 07-34MWMaterial Code: 0004 Design Temp: 0.0 °FMSpec: A 36 GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in

(34" Manway) Nozzle t = 0


--------------------------------------------------------------------------T-Min Calculation Report - Eq/Circ ID: PLT-CTLO-T1311 TML #: 41.01-------------------------------------------------------------------------- Unit : SA_TANK Design: API653 Component Code: 07-24COMaterial Code: 0004 Design Temp: 0.0 °FMSpec: A 36 GR: Notes: ASTM-------------------------------------------------------------------------- T-Min has been calculated using the variables listed below. t = Pressure design wall thickness, in

(24" Clean-Out) Nozzle t = 0


sa plt ctlo slp t1311

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