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Cathodic Protection of POL Systems

Repairs and Annual Survey

Travis Air Force Base (TRA) Suisun City, California

Contract No. N62467-03-D-0133

Contract Task Order No. 108

Submitted to:

U.S. Naval Facilities

Engineering Command Southeast

Submitted by:

3460 Main Street

San Diego, California 92113

July 2009

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Table of Contents

1.0 Executive Summary ...................................................................................................................... 1 2.0 Recommendations ......................................................................................................................... 2 3.0 Personnel Contacted at Travis Air Force Base ......................................................................... 2 4.0 DESC Fuel Facilities ...................................................................................................................... 3 5.0 Test Procedures ............................................................................................................................. 9

6.0 Repairs……………………………………………………………………………………………9 7.0 Discussion……………………………………………………………………………………….13 8.0 Conclusions & Recommendations……………………………………………………………20 9.0 Point of Contact………………………………………………………………………………...21

Appendices A Test Data – Bulk Storage Tanks B Test Data – Bulk Truck Stand Piping C Test Data – Area G D Test Data – Area B E Test Data – Area C F Test Data – Area H G Test Data – Transfer and Receipt Lines H Drawings –Bulk Storage (A-1864-1/5)(A-1862-1/3) I Drawings - Area G (A-1861-1/7) J Drawings – Area B (A-1865-1/5) K Drawing – Area C (A-1863-1/6) L Drawings – Area H (A-2226-1/5) M Drawings – Transfer and Receipt Pipelines (A-2228-1/2)(A-2735-1) N Drawing - AGE Facility (A-2422-1) O Drawing – Motor Pool (A-2423-1) P Drawing – Engine Test Facility (A-2424-1) Q Quarterly Potential Data Sheets

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1.0 Executive Summary The Defense Energy Support Center (DESC) through the Naval Facilities Engineering Command, Southeast (NAVFAC SE) contracted Corrpro to repair and evaluate cathodic protection systems afforded the Petroleum, Oil and Lubricant (POL) storage and distribution facilities at Travis Air Force Base in Suisun, California . This project is being managed by Corrpro. Mr. Pat Raabe is the Corrpro Project Manager. The repairs and annual survey were completed the weeks of July 13 and 20, 2008 by Corrpro’s specialty subcontractor, Corrosion Control Incorporated. Field Survey Engineer:

Craig K. Meier NACE Certified Cathodic Protection Specialist #6552 Corrosion Control Incorporated

Technical Manager/Quality Control: Craig K. Meier NACE Certified Cathodic Protection Specialist #6552 Corrosion Control Incorporated

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2.0 Recommendations Item No.

Structure(s) Recommendation Refer to Pages

Estimated Cost

1 General

Continue to monitor and test CP system in conformance with requirements of UFC

19 N/A

2 Area B

LFM personnel will install a dielectric union at the PRT tank.

15 N/A

3 Area C

LFM personnel will install a dielectric union at the PRT tank.

16 N/A

4 Area H

Remove the concrete from the test stations No. 10, 11 and 26.

17 $800

5 Transfer

Install a new cathodic protection system for the transfer lines once the receipt line is decommissioned.

18 $38,704

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Transfer

Decommission the rectifier at the South Gate. 18 $2350

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Base Wide

Test the DESC cathodic systems in July of 2010.

19 $17,000

Item 5 includes site visit to mark excavations and cost to process dig permit. The costs do not include any oversight by NFESC or base.

3.0 Personnel Contacted at Travis Air Force Base Julia K. Tseng Civ USAF AMC 60 CES/CEVC Base Environmental 411 Airman Drive (Bldg. 570 Travis AFB, CA 94535-2001 (707)-424-3885 [email protected]

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Richard Veiluva Civ USAF AMC 60 CES/CEOEP Base Corrosion Engineer 411 Airman Drive (Bldg. 571) Travis AFB, CA 94535-2850 (707) 424-5585 [email protected]

Dan Flores USAF AMC 60 CES/CEOEP Base Corrosion Technician 110 West Street (Bldg. 942) Travis AFB, CA 94535 (707) 424-5275

[email protected]

4.0 DESC Fuel Facilities There are nine (9) active DESC fueling systems in service at Travis Air Force Base. The fueling systems include the bulk storage tank farm, the Area G operation tanks and hydrant loop, the Area B operation tanks and hydrant loop, the Area C operation tanks and hydrant loop, the Area H operation tanks and hydrant loop, the transfer and receipt pipelines, the AGE fueling facility, the motor pool and the engine test facility. 4.1 Bulk Fuel Storage Tank Farm

Jet fuel is received into four (4) large bulk storage tanks, via pumphouses No. 705 and 708. The stored jet fuel is then issued from the tanks, through pumphouses No. 705 and 708, through the bulk storage manifold, and out to the operational pumphouses. Within bulk storage there are also truck off load stands. The off load stands are used to discharge trucks loaded with either jet fuel or diesel. The diesel is stored in a small above grade horizontal tank.

Bulk storage tanks No. 1773 and 1778 were upgraded in 2003. The upgrade included replacement of the floors and installation of containment liners. Bulk storage tanks No. 1757 and 1758 were newly constructed in 2004. The new tanks were also provided with secondary containment liners. As part of the upgrades and new construction, each of the tanks were provided with independent impressed current cathodic protection systems. The cathodic protection systems each consist of an air cooled rectifier and NEMA 4X test box located outside the containment dikes, feeding anode arrays between the floors and liners. The anodes are of the mixed metal oxide ribbon type in a grid pattern on 5 foot spacings. To allow monitoring, permanent reference cells were placed under the tanks. In 2008, the splice boxes were replaced and the conduits were sealed.

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The jet fuel truck off load lines were modified in 1998. The modifications included constructing new off load skids, and electrically isolating the pipe risers. The modified off load lines between the stands and the pumphouses were also to have been afforded galvanic cathodic protection systems. In 1999, the diesel off load system was also modified. This work included electrically isolating the diesel line between the stand and the tank manifold. The underground diesel line was to have been afforded a galvanic cathodic protection system. In 2008, test stations and galvanic anodes were installed on the truck stand lines.

4.2 Area “G”

The Area “G” pumphouse was constructed in 1971, with an extension of the transfer line from the meter station manifold valve pit. Two (2) aluminum tanks were constructed to the East of pumphouse “G”, in an earthen dike. The piping between the tanks and the pumphouse is also aluminum, and is above grade except at the dike penetrations. A 20 inch diameter welded aluminum hydrant loop was constructed and feeds eight (8) hydrant pits, designated as the 900 ramp. The underground aluminum fuel lines were coated with coal tar epoxy, and the tanks were set on concrete ringwall foundations and oiled sand pads. In 2008, test stations and galvanic anodes were installed on the truck stand lines.

An impressed current cathodic protection system was installed at the Area “G” pumphouse, to protect the tank bottoms, issue and receipt lines to/from the tanks at the dike penetrations, and the hydrant loop. The cathodic protection system consisted of a 48 volt – 28 ampere rectifier in conjunction with a point surface anode bed. The anode bed contains ten (10) 3 inch diameter x 60 inch graphite anodes. The rectifier unit was replaced by base personnel n 2007 with a 50 volt – 30 ampere unit. In 2008, the fuel lines were isolated at the pumphouse and tanks, and bond cables were installed to the pipes at the dike penetrations.

4.3 Area “B”

The Area “B” pumphouse was constructed in 1995, and replaced an existing fuel system with underground storage tanks. Two (2) welded carbon steel tanks were constructed to the north of the pumphouse, and were set on concrete ringwall foundations inside an earthen dike. The tank bottoms and dike area were provided with secondary containment liners. There are two (2) 8 inch diameter receipt and a shared 16 inch diameter issue lines that run between the tanks and the pumphouse. To the East of the pumphouse, a coated carbon steel underground product recovery tank was installed, with product drain lines from the pumphouse and the truck off load stand. The truck off load stand, which is also located to the East of the pumphouse, has three (3) 6 inch diameter risers. The truck fill stand is located southwest of the pumphouse, and ties into the hydrant loop. The 14 inch diameter stainless steel hydrant loop pipe feeds twenty (20) hydrant pits on the 200 ramp.

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The two (2) contained fuel tanks are afforded galvanic cathodic protection systems. The anode material is located between the containment liners and the floors. Original project drawings indicate that 300 pounds of magnesium anode material was installed under each tank. It is believed that magnesium rod anodes were installed, laid on 24 inch centers. To allow monitoring of cathodic protection levels, two (2) permanent copper-sulfate reference cells were laid under each tank. The anode and cell leads were terminated in a test box mounted on the shell of each tank.

Within the pumphouse area, an air cooled rectifier was mounted adjacent to the product recovery tank (PRT) tank. This rectifier is rated at 8 volts – 5 amperes, and has two (2) distributed anodes to the North and West of the pumphouse. The rectifier has three (3) negative cables, which connect to the 8 inch diameter tank receipt lines, the 16 inch diameter tank issue line and the PRT tank. In 2008, the PRT tank was electrically isolated.

The cathodic protection system for the hydrant loop and truck stand piping is located near the air traffic control tower. An air cooled 30 volt – 12 ampere unit is mounted on a concrete wall, with a surface point anode bed running along the south side of the wall. The negative cable runs out to the hydrant loop pipe on the ramp. In 2008, two grounded flanges in the hydrant pits were isolated.

4.4 Area “C”

The Area “C” pumphouse was constructed in 1998, and replaced an existing fuel system with underground storage tanks. Two (2) welded carbon steel tanks were constructed to the Southeast of the pumphouse, and were set on concrete ringwall foundations inside an earthen dike. The tank bottoms and dike area were provided with secondary containment liners. There are two (2) 8 inch diameter receipt and a shared 16 inch diameter issue pipelines that run between the tanks the pumphouse. To the East of the pumphouse, a coated carbon steel underground product recovery tank was installed, with product drain lines from the pumphouse and the truck off load stand. The truck off load stand, which is also located to the northeast of the pumphouse, has three (3) 6 inch diameter risers. The truck fill stand is located west of the pumphouse, and ties into the hydrant loop. The 14 inch diameter stainless steel hydrant loop pipe feeds twenty (20) hydrant pits on the 400 and 500 ramps.

The two (2) contained fuel tanks are afforded galvanic cathodic protection systems. The anode material is located between the containment liners and the floors. Original project drawings indicate that 300 pounds of magnesium anode material was installed under each tank. It is believed that magnesium rod anodes were installed, laid on 24 inch centers. To allow monitoring of cathodic protection levels, two (2) permanent copper-sulfate reference cells were laid under each tank. The anode and cell leads were terminated in a test box mounted on the shell of each tank.

Within the pumphouse area, an oil cooled rectifier unit is set near the PRT tank. This rectifier unit is rated at 50 volts – 16 amperes, and was to have had three (3) negative

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cables. The negative cables were connected to the tank lines, the PRT tank the hydrant loop and the truck stand lines. The rectifier also has two (2) positive cables which run out toward the apron. One (1) cable feeds four (4) anodes along the 500 apron to the North of the pumphouse, and the second cable feeds four (4) anodes along the 400 apron to the West of the pumphouse. The anodes are 2 inch diameter x 60 inch long cast iron in coke breeze columns. In 2008, the PRT tank was electrically isolated.

4.5 Area “H”

The Area “H” fuel system had consisted of a pumphouse with two (2) aluminum tanks and an aluminum hydrant loop. The fuel system had been out of service for several years, due to corrosion problems on the aluminum pipelines. In 2006, a new Area “H” fuel system was constructed. The new system includes two (2) above grade carbon steel tanks, a 12 inch diameter stainless steel hydrant loop, and a pumphouse.

The fuel storage tanks are set on concrete ringwalls within a concrete dike area. Under each tank floor, a containment liner was laid. There is a 12 inch layer of sand between the liners and the tanks bottoms. Each fuel tank is afforded an independent impressed current cathodic protection system. Each system has a 30 volt – 8 ampere air cooled rectifier mounted on the exterior pumphouse wall. A test box is mounted adjacent to each rectifier, and contains the anode and permanent reference cell leads. A conduit containing the anode leads, negative cable, structure test lead, and reference cell leads run underground between each tank and the test box. Within the sand, under each tank floor, a mixed metal oxide anode array was installed. The anodes are 0.25 inch wide mixed metal oxide ribbons laid on 48 inch centers. There are three (3) paired copper/copper-sulfate and zinc reference cells under each tank floor.

The dike areas contain spilled fuel, but also capture rain water. Coated steel drain lines are used to transfer the water from the dikes to a concrete separator. Each drain line is electrically isolated and afforded a galvanic cathodic protection system.

An underground coated steel PRT tank was installed on the east side of pumphouse H. All of the drain lines and the pumpback line are above grade. The coated steel PRT tank was electrically isolated and afforded a galvanic cathodic protection system.

There are coated stainless steel fill and issue pipelines that run underground between the tanks and pumphouse H. There are also two (2) small diameter welded steel lead detection pipes that run underground between the pumphouse and the driveway. The original transfer line was extended from the existing isolation vault, and runs underground to pumphouse H. A new stainless steel hydrant line leaves pumphouse H, forming a loop and feeding the 300 hydrants. Cathodic protection negative bond boxes were installed on the North wall of pumphouse H, and near the crossover vault. The bond boxes connect the underground fuel lines at pumphouse H to the cathodic protection system at pumphouse C. Monitoring test stations were installed along the hydrant loop.

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4.6 Jet Fuel Transfer and Receipt Lines

There are two (2) active 8 inch diameter jet fuel transfer lines which leave the manifold in bulk storage. The first line leaves the West side of the tank farm and feeds operational pumphouses “C” and “H”. The pipeline has a tee at “H” pumphouse, and then continues on to “C” pumphouse. The second 8 inch diameter pipeline leaves the South end of bulk storage and tees near the Kinder Morgan manifold. From the tee, an 8 inch diameter line continues south to the “G” pumphouse, and an 8 inch diameter line runs to the West to the “B” pumphouse. The transfer lines date to the mid 1950’s, and are constructed of welded carbon steel with a coal tar coating.

The transfer line cathodic protection system includes the receipt line from Kinder Morgan, and the issue/receipt pipelines in bulk storage. The transfer pipelines were provided with coal tar coatings when originally constructed. The first cathodic protection systems within the base were installed on the receipt line between the off site marina and the meter station on base. An impressed current cathodic protection system was installed near the South base access gate in 1956, with an oil cooled 36 volt – 50 ampere rectifier and a point surface anode bed. An impressed current cathodic protection system was also installed at the meter station in 1956. This system consisted of a 20 volt – 20 ampere air cooled rectifier with a point surface anode bed. The receipt piping at that time included the 8 inch diameter jet fuel line and a 6 inch diameter avegas line. Santa Fe Pipeline operated the receipt lines at that time, and actually installed the cathodic protection systems in 1956. The receipt lines and the transfer lines were electrically isolated at the Marina station and the meter station. A bond box installed in 1956 tied the pipelines together to prevent interference. In 1971, an impressed current cathodic protection system was installed on the extension to “G” pumphouse. This cathodic protection system consisted of a 48 volt – 20 ampere rectifier with a point surface anode bed.

In the early 1980’s, the section of 8 inch diameter jet fuel receipt line was replaced between the marina manifold and Highway 12. When the section of pipe was replaced, it was afforded test stations and galvanic anodes. The 6 inch diameter avegas pipeline had been taken out of service, and was capped at Highway 12. In 1997, the 8 inch diameter jet fuel receipt pipeline along Highway 12 was replaced, to accommodate road widening. The new pipeline was provided with ten (10) cathodic protection test stations, five (5) of which were at cased road or stream crossings. The new pipe was welded to the line replaced in 1980 on the west end, and to the original 1956 pipeline at the intersection of Highway 12 and Woodlark Road. The cathodic protection systems installed in 1956 remain in operation. The cathodic protection system at pumphouse G was taken out of service in 2006. The transfer lines to pumphouses B, C, G and H were bonded into the cathodic protection systems as they were constructed. In 2008, the fuel lines were electrically isolated at pumphouses 705 and 708, and bonded together. The issue lines from the tanks were also bonded in the vaults.

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Jet fuel is received at Travis Air Force Base via an 8 inch diameter pipeline which originates off site near the marina in Suisun City. Kinder Morgan Pipeline Company provides the jet fuel for the base, at a valve station near the marina. The 8 inch diameter receipt line parallels Highway 12, and enters the base near the South shipment receiving gate. The pipe then runs across base to a manifold on Ragsdale Road, which is operated by Kinder Morgan. The off site receipt line is owned by the base. The jet fuel is then received in an 8 inch diameter pipeline at the manifold in bulk storage. In 2008, markers were installed on 500 foot centers along the receipt line, and at each test station and road crossing.

4.7 AGE Facility

The original Aviation Ground Equipment (AGE) fueling facility was decommissioned in early 2008. A new AGE fueling station was under construction at the time of the 2008 site survey. The containment area where the new fuel tanks will be set had been constructed, along with the underground piping. The dispensers and storage tanks were not yet in place. The fuel system was completed in 2008. The fuel tanks are located above grade on supports. The underground piping is double walled fiberglass.

4.8 Motor Pool

The motor pool service station consists of three (3) 20,000 gallon underground tanks feeding three (3) dispensers, near building No. 1741. There are also remote fill lines that come above grade at an adjacent island, with a facility number of 1782. The tanks and piping were installed in 1994. The underground fuel storage tanks are constructed of double walled fiberglass. The product lines and remote fill lines are also double wall fiberglass.

4.9 Jet Engine Test Cell

The jet engine test cell originally had two (2) coated steel fuel tanks with above grade fuel lines. The original tanks were electrically isolated, and provided with factory galvanic anodes. Supplemental galvanic anodes and test stations were installed on the tanks sometime after original construction.

In 1995, the coated steel fuel tanks at the jet engine test cell were removed. Two (2) new 10,000 gallon underground double wall fiberglass tanks were installed at that time. The jet fuel pipelines remain above grade. The original galvanic cathodic protection test stations were abandoned in place.

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5.0 Test Procedures Testing was completed in conformance with the project Work Plan. This testing included the following:

Rectifier Inspection – Assessment of operating condition of the rectifier, including inspection for physical or electrical damage, verification of meter accuracy, and general assessment of condition. The rectifier make, model, serial number, ratings, input voltage, transformer settings and DC output levels were recorded. The output levels were recorded with Fluke Model 85, which was calibrated within thirty (30) days of the survey.

Structure-to-Soil Potential Measurements – Potential measurements were recorded

with the Fluke voltmeter and a freshly charged M. C. Miller Model RE-5 copper/copper-sulfate reference cell, on the above grade contained tanks, permanent copper/copper-sulfate and zinc reference cells were assessed. To obtain “Instant Off” potentials, synchronized Electronic Pipeline Technology Model EPT/CI-100 current interrupters were used with a cycle of 30 seconds “On” and 3 seconds “Off”. The reference cell was placed within 6 inches of pipe risers and over underground pipes.

Measurement of Anode and Bond Current Flow – Measurement of the current output

of each anode circuit, and bond current flow, was conducted using the Fluke voltmeter and the calibrated shunts in the test boxes.

Electrical Isolation – Dielectric gaskets were evaluated with an M. C. Miller Model 601

isolation checker. The instrument was zeroed and calibrated at the start of each series of tests.

Electrical Continuity – Electrical continuity, or the lack of, was verified using potential

measurements. A stationary copper/copper-sulfate reference cell was placed in contact with the soil, a remote distance from the structure under test. Potentials were then recorded between the remote cell and the structure components.

6.0 Repairs In 2008, Corrosion Control Incorporated conducted a cathodic protection survey on the DESC fueling systems at Travis AFB. The work was performed for CH2M HILL under contract to NAVFAC. During the survey, several cathodic protection system deficiencies were noted. Recommendations were set forth in the 2008 cathodic protection survey report. Corrpro was contracted in 2009 to complete cathodic protection repairs and testing at Travis AFB. Corrpro contracted Corrosion Control Incorporated to complete the repairs and testing.

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6.1 Coat Pipe Risers

In 2008, low potentials were noted on the west side of the manifold in bulk storage. The low potentials were attributed to a lack of coatings on the riser pipes. The original pipelines had coal tar enamel coatings. The original coatings ended at least 12 inches below grade. At some time, the pipe risers were exposed, and a tape wrap was applied. However, the pipes were not properly cleaned, and the tape wraps were coming loose. A recommendation was made to uncover each riser, remove the tape wrap, clean the surface, and apply a two part epoxy coating. The pipe risers were each uncovered, until the original coal tar enamel was exposed. The depth of exposure ranged from 12 to 24 inches. The existing tape wraps were then removed. The pipes were then mechanically cleaned from the original enamel coating to a point at least 6 inches above grade. Tape Coat model TC-7100 wet bond epoxy was then applied, with a coverage of 15 to 20 mils. The photograph to the right shows the exposed risers after the new coating was applied. After the coatings cured, the pipe risers were carefully backfilled. When the risers were exposed, underground flanges were discovered on each of the low point drain lines. At each pipe riser, there is a 2 inch diameter low point drain, which connects to the fuel lines below grade. Each of the low point drains have an above grade valve and hose connection. When the drain lines were exposed, bolted flanges were discovered 12 to 18 inches below grade. The flanges are bare steel, and are not contained. Buried flanges are a risk to leak. There are plans to replace the pipes in 2015, and they are pressure tested annually. Action to remove the buried flanges is therefore not required.

6.2 Clear Contact Area B Tests in 2008 found low potentials on the tank fill and suction lines. A recommendation

was made to investigate and correct this problem. Initial testing found that the fuel pipelines between the tanks and pumphouse were not tied into the cathodic protection system. The original negative cables were traced out, and found to be broken under the pumphouse. The cables could not be accessed for repair. A conduit was installed on the backside of the pumphouse. A #10 THHN bond cable was then connected between the

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2 inch pumpback riser, and the tank lines. The photograph to the right shows the bond cables and conduit. This tied the pipes into the cathodic protection system.

6.3 Clear Contact Area C

Tests in 2008 found low potentials on the fuel lines near the pumphouse in Area C. The lack of protection was attributed to a grounded contact near the pumphouse. A recommendation was made to locate and clear the contact. The negative bond cables were disconnected at the rectifier. Continuity tests were then conducted to confirm to which pipes the cables are connected. There are three cables, and they are connected to; Cable #1 - Tank fill and issue lines Cable #2 - PRT tank and drain lines Cable #2 - Hydrant lines and Area H piping Tests found that the current flow to the tank pipelines was higher than expected. Further testing revealed that the fill and issue pipe risers were contacting the grounding cables at tank No. 1770. The contact to the issue riser is shown in the photograph to the right. The liner was taken loose and a fuel resistant rubber hose was slipped over the ground cables. The penetrations were then sealed with urethane caulk. A retest determined that the tank pipe contacts had been cleared.

6.4 Clear Drain Contact – Area H

Tests in 2008 found elevated galvanic output levels on the storm water drain lines in Area H. The current output levels were excessive for the small amount of coated pipe. It appeared that the pipes were grounded to another underground utility. A recommendation was made to locate and clear the grounded contact. Continuity tests were performed between the cathodic protection test station leads, drain lines exposed in the valve vaults, and various other pipes, conduits and ground cables near the pumphouse. There are three storm water drain lines, which connect together and flow

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to an oily water separator. The drains are from both tank containment dike basins, and from within the pumphouse. There are three cathodic protection test stations each on one of these pipes. The continuity tests found that the drain lines are electrically continuous with each other, and they are electrically isolated from the conduits and ground cables at the pumphouse. The drain lines were electrically traced out, and there was no indication of an underground contact. The high current requirement is not the result of a grounded contact. The problem is a lack of coatings. The photograph below to the left are the tank dike drain lines in the isolation valve vault. The photograph to the right is the pumphouse drain line. The pipes are ductile iron and were furnished with a 2 to 3 mil epoxy coating. This coating is designed to protect the iron pipe from corrosion when it was transported from the foundry to the job site. The thin coating provides little protection for the underground pipes.

The pipes should have received at least 16 mils of epoxy. Due to the depth and location of the lines, it is not practical to recoat the pipes. The cathodic protection system will need to be monitored, and the anodes replaced as they deplete.

6.5 Install Cathodic Protection - Area G Tanks

The Area G fuel storage tank bottoms had received a level of cathodic protection from the piping rectifier unit. This protection was the result of grounded contacts at the pumphouse. The grounded contacts were having an adverse effect on the underground fuel lines near the pumphouse and on the ramp. In 2008, the fuel lines were electrically isolated and afforded effective protection. However, when the pipes were isolated, the tank bottoms lost protection. The tanks could not be bonded to the piping, because they are connected to ground cables and conduits. A recommendation was made to install a separate impressed current cathodic protection system for the tank bottoms. A new anode bed was installed outside the west containment dike wall. The photograph on the next page to the left shows the anodes in the trench. A negative cable

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was run in conduit, over the dike, and attached directly to tank No. 2. A new rectifier unit was mounted on the pad north of the MCC. The photograph below to the right shows the new rectifier unit, to the right of the existing pipeline rectifier.

6.6 Isolate Issue Line – Bulk Storage

Tests in 2008 found low cathodic protection levels on the issue line from bulk fuel storage tank No. 1778. The problem was traced to a grounded contact between the pipe drain risers and the vault wall supports. A recommendation was made to isolate the drain line risers. The drain line riser clamps were taken loose and rubber spacers were inserted around the pipes. The clamps were then tightened. The photograph to the right shows the drain risers after installing the spacers. The risers are now isolated from the supports.

7.0 Discussion 7.1 Bulk Storage Tanks

The data recorded on the bulk storage tanks is presented in appendix A. Each of the four rectifier units are in good condition, with the following output levels;

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Tank No. Volts Amperes 1757 10.4 5.5 1758 9.7 9.0 1773 13.3 3.5 1778 22.9 5.5

All of the anode circuits are producing current as desired. The level of achieved polarization ranged from 118 to 1215 millivolts and met NACE criteria.

7.2 Bulk Storage Truck Stand Piping

The data recorded on the bulk storage truck stand pipelines is provided in appendix B. All of the pipe risers are electrically isolated as desired. The test stations and galvanic anodes are in place and operational. The pipe potentials ranged from -1410 to -1628 millivolts and met NACE criteria.

7.3 Area G

The data recorded on the fuel tanks and piping in Area G is presented in appendix C. Prior to the survey, the cathodic protection system was installed for the tank bottoms. The pipeline rectifier unit is in good condition and was found operating at 2.6 volts and 0.1 amperes. The “Instant Off” potentials recorded on the piping ranged from -1112 to -1265 millivolt. The potentials did meet NACE criteria. However, the protection levels are excessive for the aluminum piping. Therefore, a section of insulated resistor wire was inserted in the negative circuit. The rectifier was then re-energized at 1.6 volts and 0.06 amperes. At this reduced output, the “Instant Off” potential on the piping at the dike penetration dropped from -1161 to -1032 millivolts. This reduced potential still meets criteria, and is at acceptable levels for aluminum. Native potentials were recorded in the tank test ports prior to energizing the new rectifier. The rectifier unit was then energized at 1.2 volts and 1.6 amperes. After three days of operation, the level of achieved polarization ranged from 123 to 137 millivolts. The data does meet NACE criteria. However in consideration of the copper grounding, it would be best to increase the “Instant Off” potential level. The rectifier output was increased to 3.8 volts and 3.8 amperes. At this output level, the energized potential on tank No. 1795 increased from -569 to -795 millivolts. The increase in rectifier output will provide the desired results.

7.4 Area B

The data recorded on the tanks and piping in Area B is provided in appendix D. Prior to the survey, the tank fill and issue pipelines were bonded into the cathodic protection system. The level of achieved polarization on the operation fuel tanks ranged from 216 to 336 millivolts and met NACE criteria.

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The rectifier on the fuel piping near the pumphouse is in good condition, and was found operating at 4.8 volts and 2.2 amperes. The “Instant Off” potentials recorded on the piping and PRT tank ranged from -410 to -682 millivolts. The potentials did not meet NACE criteria. The continued lack of protection indicated that a problem other than the broken bond cables existed. The negative cables at the rectifier were separated, and tested independently. With only the tank fill and issue lines connected, the potentials were at desired levels. The PRT drain lines were added, and protection levels remained as desired. When the PRT tank was added, protection levels dropped. Each of the PRT risers, manholes and conduit connections were checked and determined to be isolated. The contact had to be underground. Continuity checks were then made between the PRT tank and all other conduits and ground cables. This test indicated that the truck pump out line was grounded. The union above the dielectric gasket in this riser was taken loose. Once the pipe connection was broken, the potentials on all of the structures increased significantly. This riser has a second internal pipe which is grounded to the tank, and bi-passes the gasket. The union is shown in the above photograph, painted red. The standard union will need to be replaced with a dielectric union. A dielectric union has been shipped to Civil Engineering, to be installed by LFM. With the pipe disconnected, potentials were observed and the rectifier was adjusted. With a rectifier output of 2.5 volts and 0.32 amperes, the “Instant Off” potentials ranged from -1145 to -1349 millivolts, and met NACE criteria. The rectifier was left at a reduced output, so that it will be properly adjusted once the union is replace. The rectifier on the hydrant piping is in good condition, and was found operating at 6.3 volts and 6.5 amperes. The “Instant Off” potentials ranged from -991 to -1641 and met NACE criteria.

7.5 Area C

The test data recorded in Area C is provided in appendix E. Prior to the survey the tank fill and issue lines were electrically isolated by separating off the ground cables. The level of achieved polarization on the operation tanks ranged from 5 to 126 millivolts. The tank bottoms did not meet criteria, and are subject to corrosion. This problem was identified in 2007. The original galvanic anodes are nearly depleted. To repair the cathodic protection systems, the tanks would need to be lifted, at considerable cost. As an alternative, the tanks can be inspected to API-653 standards every ten

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years. If significant corrosion activity is found, the tanks should be lifted and the cathodic protection systems replaced. The rectifier unit on the underground fuel piping was replaced by base personnel in 2008. The unit was replaced because it was oil cooled. The new air cooled unit is shown in the photograph on the prior page to the right. The unit is in good condition, and was found operating at 10.9 volts and 8.4 amperes. The “Instant Off” potentials on the underground jet fuel lines and PRT tank ranged from -627 to -982 millivolts. The potentials on the apron met criteria, and the protection levels around the pumphouse were low. Additional testing determined that the PRT tank and drain lines were drawing about half of the current. The truck pump out line was then disconnected at the PRT tank. Potentials on the piping near the pumphouse increased significantly. The “Instant Off” values on the piping near the pumphouse ranged from -1045 to -1184 millivolts. The existing standard pipe union will need to be replaced with a dielectric union. The union that requires electrical isolation is shown painted red in the photograph to the right. This union has been shipped to Civil Engineering, to be installed by LFM. Once isolated, the rectifier will remain at existing output levels, improving protection on the transfer lines.

7.6 Area H

The data recorded in Area H is provided in appendix F. Prior to the survey, the problem with the storm water drain lines was investigated. The rectifier units afforded the operational tanks are in good condition, and had the following outputs; Tank No. Volts Amperes 1768 4.9 1.5 1769 4.8 2.7 All of the anode circuits are operating and producing current. The level of achieved polarization of the tank bottoms ranged from 107 to 521 millivolts, and met NACE criteria. The PRT tank and storm water drain lines are afforded galvanic cathodic protection systems. The potentials recorded on the PRT ranged from -1562 to -1633 millivolts, and met NACE criteria. The potentials on the drain lines ranged from -1386 to -1422 millivolts, and also met NACE criteria. The drain line galvanic anodes are producing high levels of current, due to poor coatings, as discussed in section 6.4.

17

The hydrant piping in Area H is protected by the rectifier unit in Area C. The “Instant Off” potentials ranged from -881 to -1053 millivolts, and met NACE criteria. This data was recorded with the PRT tank grounded in Area C. Once the PRT tank is isolated, protection levels will increase. Construction work is occurring on the 300 ramp, which includes replacing pavement. When the pavement is replaced, the cathodic protection test stations are also replaced. Test stations No. 10, 11 and 26 have been replaced, but now have concrete blocking soil access. This concrete will need to be broken loose and removed during the 2010 cathodic protection survey.

7.7 Transfer and Receipt Pipelines

The data recorded on the transfer and receipt pipelines is provided in appendix G. The rectifier units, located at the South Gate and the Kinder Morgan meter station, are in relatively poor condition. Both of these units are 53 years old. The “Instant Off” potentials on the off site receipt pipeline ranged from -1104 to -1223 millivolts, and met NACE criteria. The casings at Grizzly Island and Lawler Ranch are filled with water, and should be drained and sealed. Due to the depth of burial, and positioning between the highway and developments or wet lands, the repair would be difficult and costly. A project is underway to build a new JP-8 receipt pipeline. Kinder Morgan will construct two new breakout tanks just outside of bulk storage. A new receipt line will then be constructed between Kinder Morgan and bulk storage. The location of the new terminal was being marked out during the 2009 survey. This work is planned for early 2010. Once the new terminal and receipt line are in operation, the existing pipeline from Suisun City will be decommissioned. Therefore, no repairs should be made on the existing receipt line. The “Instant Off” potentials on the transfer lines ranged from -724 to -1174 millivolts. All points met criteria except the 8 inch crossover at pumphouse 705, the issue line from tank 1778, and three risers on the west side of the bulk storage manifold. The 8 inch crossover line has a bond wire to the C/H transfer line, at pumphouse 705. The cable connections had corroded and had a high resistance. A new conduit and bond wire were installed between the pipes during the survey. The bond is shown in the photograph to the right. The pipe potential increased from -814 to -943 millivolts, once the bond was installed. The issue line from tank 1778 had been grounded to the low point drain riser supports. The supports were isolated during the survey. The risers on the west side of the manifold were cleaned and coated during the 2008 survey. The lack of protection is attributed to the bare drain line flanges and shielding. Most of the protective current to the bulk storage piping originates at the South Gate rectifier. Isolating the PRT tank in Area C will help improve protection levels to some

18

degree. However, the decommissioning of the old receipt line will have the most significant impact. When the old receipt line is decommissioned, it will be disconnected at the Kinder Morgan meter station and the bulk storage manifold. The piping at the Kinder Morgan meter station will be removed. These actions will significantly reduce the piping current demand. However, when the lines are decommissioned, the cathodic protection systems at the South Gate and Kinder Morgan meter station will be lost. This will leave most of the transfer piping without cathodic protection. There are plans to eventually replace the transfer lines to B, C, G and H operation pumphouses. However, those construction activities are about five years out. It will be necessary to install a new cathodic protection system for the transfer lines in 2010. The rectifier unit would be located adjacent to the rectifier for bulk fuel storage tank 1778. The negative cable would be connected to the 1778 issue line, in the isolation vault. A new anode bed would be installed outside the South containment dike for tank 1778. The proposed system is shown in drawing A-2735-1 of appendix M. This location was selected first, because it will best protect the concentrated piping in bulk storage. The second reason for this location selection is that the system can remain in service to protect the proposed transfer lines. When the receipt line is decommissioned, the cathodic protection systems at the South Gate and the meter station will be taken out of service. The air cooled rectifier unit at the meter station will be removed when the station is dismantled. The old oil cooled rectifier unit at the South Gate will need to be decommissioned and removed. This work would include disposal of the transformer oil.

7.8 Aircraft Ground Equipment (AGE) Service Station

The fuel tanks at the new AGE service station were installed in 2008. The tanks are welded carbon steel, above grade, set on welded steel saddles. The tanks are not in contact with the soil. The photo to the right shows the new AGE station. The AGE station piping from the tank pad to the dispenser island is totally contained double wall fiberglass. Drawing A-2422-1 showing the AGE service station is provided in appendix N.

There is no requirement for cathodic protection on the AGE fueling system.

7.9 Motor Pool

The three (3) 20,000 underground fuel tanks at the motor pool fueling station are double wall fiberglass. The photograph to the bottom left shows the three (3) tanks with the dispenser islands toward the back. The underground product lines associated with each tank are double walled fiberglass, and are contained at the subpumps and dispensers.

19

The photograph below to the right shows the subpump containment chamber and fiberglass pipes at one of the tanks. Drawing A-2432-1 of appendix O shows the Motor Pool fueling system.

There is no requirement for cathodic protection on the Motor Pool fueling system.

7.10 Jet Engine Test Cell

There are two (2) 10,000 gallon underground double wall fiberglass fuel tanks at the jet engine test cell. The photograph below to the left shows the tanks, the fiberglass manhole risers, and the fuel pumps. The jet fuel piping leaving the pumps is above grade to the test cell. The photograph below to the right shows the fuel piping. Drawing A-2424-1 in appendix P shows the layout of the fuel system.

There is no requirement for cathodic protection on the Jet Engine Test Cell fueling system.

7.11 Monitoring and Maintenance

Base personnel will need to continue to monitor the rectifier units every sixty days. Any problems encountered with one of the units must be promptly corrected. Base personnel will also need to continue conducting strategic potential measurements each

20

quarter. A data sheet has been provided in appendix Q, to be used for the quarterly tests. If an abrupt change in potential occurs, prompt corrective action is required. Annually the cathodic protection systems must be evaluated by a professional corrosion engineer. This service should be provided under the DESC CMP cathodic protection monitoring and maintenance program. The next survey is due in July of 2010.

8.0 Conclusions & Recommendations 8.1 Travis Air Force Base personnel will need to monitor and record the rectifier output

levels each month. The rectifier output levels must be recorded in a log book. If a rectifier is found to be operating outside target range, the problem must be promptly investigated and corrected by facility maintenance personnel.

8.2 Quarterly base personnel should obtain strategic “On” potential measurements to verify

continual protection. 8.3 Annually, the cathodic protection systems must be evaluated by qualified personnel, to

comply with DOD and state regulations. The next survey is due in July 2010. 8.4 LFM personnel will need to install a dielectric union in the PRT tank riser in Area B. 8.5 LFM Personnel will need to install a dielectric union in the PRT tank riser in Area C. 8.6 Remove the concrete within test stations No. 10, 11 and 26 in area H. 8.7 When the receipt line is decommissioned, disconnect the inactive piping at the meter

station and bulk storage, decommission the piping at the meter station, and decommission the cathodic protection systems at the South Gate and the Kinder Morgan meter station.

8.8 Install a new cathodic protection system for the transfer lines, located in bulk storage. 8.9 Conduct API-653 out-of-service inspections on the operation tank bottoms on ten year

intervals, in Area C. If significant corrosion is detected on the floors, consider lifting the tanks and installing new cathodic protection systems.

21

9.0 Point of Contact Any questions concerning this technical report should be addressed to: Craig K. Meier NACE Certified Cathodic Protection Specialist #6552 Corrosion Control Incorporated 494 Fairplay Street Rutledge, Georgia 30663 P: 706-557-9624 – F: 706-557-7923 Email: [email protected] or Edwin D. Piedmont, P.E. NACE Certified Cathodic Protection Specialist DESC Cathodic Protection Program Manager 2482 Red Bank Road Goose Creek, SC 29445-8603 P: (843) 743-0403 or DSN 583-7141 Email: [email protected] Questions concerning the contractual aspects of this work should be addressed to: Pat Raabe Project Manager Corrpro 3460 Main Street San Diego, California P: (619) 235-1718 F: (619) 235-1727 Email: [email protected]

Appendix A

Test Data

Bulk Storage Tanks

#801

CORROSION CONTROL INCORPORATED CATHODIC PROTECTION FIELD DATA

TABLE I SHEET 1 OF 3

SITE NAME: Travis AFB

1. “On” potential (mV). 07/14/2009

STRUCTURE: Bulk Storage Tanks 2. “Instant Off” potentials (mV). 07/14/2009 DATE OBTAINED: As-noted 3. “Depolarized potential (mV). 06/29/2006 SURVEYED BY: C. Meier / J. Vick 4. Achieved polarization (mV). 07/14/2009

5. Anode current (amps). 07/14/2009 NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

01

Tank 1757 – Cells C-1 -7540 -1645 -981

664 Product 40’ – 10”

C-2 -1373 -713 -595

118 125’ - 2004

C-3 -2808 -1456 -714

742

Z-1 -7800 -1491 -394

1098

Z-2 -5354 -621 +055

676

Z-3 -5439 -925 -250

675

02

Tank 1757 – Anodes A-1

1.84

A-2

1.80

A-3

1.79

03

Tank 1758 – Cells C-1 -1959 -973 -676

297 Product 40’ – 8”

C-2 -6760 -1312 -548

764 125’ - 2004

C-3 -1562 -1265 -941

324

Z-1 -2554 -240 +146

386

Z-2 -4605 +040 +390

350

#801




1. “On” potential (mV). 07/14/2009

STRUCTURE: Bulk Storage Tanks 2. “Instant Off” potentials (mV). 07/14/2009 DATE OBTAINED: As-noted 3. “Depolarized potential (mV). 06/29/2006 SURVEYED BY: C. Meier J. Vick 4. Achieved polarization (mV). 07/14/2009


LOCATION 1. 2. 3.

4. 5. COMMENTS

03

Continued Z-3 -4195 -252 +120

375

04


2.94

A-2

3.01

A-3

3.25

05

Tank 1773 – Cells C-1 -10920 -1559 -344

1215 Product 8’ – 6”

C-2 -6800 -1424 -231 1193 100’ - New bottom 2003

C-3 -5101 -1464 -444

1020

06

Tank 1773 – Anodes A-1 0.0

A-2 1.95

A-3 1.75

07

Tank 1778 – Cells C-1 -7410 -1150 -214

936 Product 40’ – 8”

C-2 -7170 -861 -216

645 93’ - 1968/2003

#731




1. “On” potential (mV). 07/14/2009

STRUCTURE: Bulk Storage Tanks 2. “Instant Off” potentials (mV). 07/14/2009 DATE OBTAINED: As-noted 3. “Depolarized potential (mV). 06/29/2006 SURVEYED BY: C. Meier / J. Vick 4. Achieved polarization (mV). 07/14/2009


LOCATION 1. 2. 3.

4. 5. COMMENTS

07

Continued C-3 -3807 -891 -214

677

08


1.58

A-2

2.04

A-3

1.84

#801

CORROSION CONTROL INCORPORATED CATHODIC PROTECTION RECTIFIER MAINTENANCE SHEET

Rectifier Unit No: 1 Serial No. C-040546 Location of Rectifier Unit: Outside dike T-1757, Bulk Storage Type of Rectifier Unit: Model CAYSD 80-28 RZ 99 Type of Anodes: Mixed Metal Oxide Qty: 5’ Centers Size: 0.25” wide Type of Ground Bed: Grid Ground Bed Location: Under floor above liner Rectifier Mfg.: Corrpower Installed: 2004 Rectifier AC Input: 240 Volts 1 Phase 60 Cycles Rated Rectifier DC Output: 80 Volts 28 Amperes Shunt: 35 Amps 50 mV TARGET OUTPUT: 7 TO 12 VOLTS 4 TO 9 AMPERES

Rectifier Tap Setting

D C Output Volts | | Amps

Date By Comments

C-A / F-2 6.3 6.1 09/10/07 C.K.M / C.L. As-found C-A / F-3 9.5 17 06/29/06 C.K.M / C.L. Adjusted C-A / F-3 10.5 5.7 03/24/08 C.K.M. As-found C-A / F-3 10.4 5.5 7/14/09 C.K.M. Annual Test

#801





Date By Comments

C-A / F-2 5.8 7.7 09/10/07 C.K.M. As-found C-A / F-3 8 20 06/28/06 C.K.M. Adjusted C-A / F-3 9.3 11.4 09/10/07 C.K.M. As-found C-A / F-3 9.8 9.9 03/24/08 C.K.M. As-found C-1 / F-3 9.7 9.0 7/14/09 C.K.M. Annual Test

#801





Date By Comments

C-A / F-3 12.9 5.0 09/10/07 C.K.M As-found C-A / F-3 13 9.0 06/29/06 C.K.M Re-energized C-A / F-3 13.2 4.3 09/10/07 C.K.M. As-found C-A / F-3 13.4 3.7 03/24/08 C.K.M. As-found C-A / F-3 13.3 3.5 7/14/09 C.K.M. Annual Test

#801





Date By Comments

C-A / F-3 13.2 3.2 09/10/07 C.K.M. As-found C-A / F-4 17.7 9.5 06/28/06 C.K.M. Adjusted C-A / F-4 17.8 3.4 09/10/07 C.K.M. As-found C-A / F-4 18.4 3.2 03/24/08 C.K.M. As-found C-A / F-5 22.9 5.5 7/14/09 C.K.M. Annual Test

Appendix B

Test Data

Bulk Truck Stand Piping

#801


TABLE II SHEET 1 OF 5

SITE NAME: Travis Air Force Base

1. Potential measurement (mV). 06/06/2006

STRUCTURE: Bulk Storage Truck Stands 2. Anode current (mA). 06/06/2006 DATE OBTAINED: As-noted 3. Potential measurement (mV). 07/14/2009 SURVEYED BY: C. Meier, J. Vick 4. Anode current (mA). 07/14/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

Old Truck Fill Piping

01

Riser at pumphouse 705 -1510 -1473

Isolated

02

Test Station No. 1 -1589 -1504

10

03


20

04

Riser 0-1 -1638 -1566

05

Riser 0-2 -1620 -1628

06


<10

07

Riser 0-3 -1603 -1594

#801






NO.

LOCATION 1. 2. 3.

4. COMMENTS

08

Riser 0-4 -1632 -1587

09


<10

10

Riser 0-5 -1611 -1576

11

Riser 0-6 -1692 -1594

Truck Stands 1 / 2

01


Isolated

02

Test Station No. 9 -1436

34

03


44

#801






NO.

LOCATION 1. 2. 3.

4. COMMENTS

04

Riser 1-1 -619 -1492

05

Riser 1-2 -601 -1492

06

Riser 1-3 -593 -1484

07

Riser 1-4 -606 -1480

Isolated

08

Riser 2-1 -602 -1476

Isolated

09

Riser 2-2 -601 -1450

10

Riser 2-3 -587 -1459

#801






NO.

LOCATION 1. 2. 3.

4. COMMENTS

Truck Stands 3/4

01


02


10

03


60

04

Riser 3-1 -1226 -1469

Isolated

05

Riser 3-2 -1229 -1466

06

Riser 4-1 -1220 -1472

Isolated

#801






NO.

LOCATION 1. 2. 3.

4. COMMENTS

Diesel Off Loca

01

Truck Riser -088 -1542

02

Tank Riser -297 -1524

03


22 New

Appendix C

Test Data

Area G

#801


TABLE III SHEET 1 OF 3

SITE NAME: Travis AFB – Area G

1. “On” potential (mV). 06/27/06

STRUCTURE: Fuel Tanks and Piping 2. “Instant Off” potential (mV). 06/27/06 DATE OBTAINED: As-noted 3. “On” potential (mV). 07/15/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV). 07/15/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

Pipes at dike to tanks 16” south -941 -665 -1514

-1155 After reduced current

8” mid -1521

-1164 -1053 / -1032 mV

8” north -1518

-1164

02

Transfer line riser -1374 -1291 -1140

-1136 Isolated

03

20” East riser -1174 -620 -1502

-1151

04

20” West riser -1053 -614 -1444

-1161

05

LPD – West -1011 -612 -1496

-1152

06

LPD – East -1147 -609 -1500

-1157

07

Hydrant pit 902 -880 -562 -1509

-1185

#801






NO.

LOCATION 1. 2. 3.

4. COMMENTS

08

Hydrant Pit 901 -898 -594 -1500

-1112

09

Hydrant Pit 903 -888 -568 -1504

-1158

10

Hydrant Pit 904 -891 -567 -1523

-1174

11

Hydrant Pit 905 -885 -563 -1523

-1201

12

Hydrant Pit 906 -889 -559 -1501

-1241

13

Hydrant Pit 907 -909 -573 -1504

-1216

14

Hydrant Pit 908 -908 -577 -1522

-1265

15

Test Station between 906/907 -1510

-1256

#801






NO.

LOCATION 1. 2. 3.

4. COMMENTS

17

Hydrant Pit 902 – A -1521

-1189

18

Hydrant Pit 902-B ---

--- No soil access

#801


TABLE IV SHEET 1 OF 1


Anode bed current output.

STRUCTURE: Area G Tank Farm 1. 06/27/2006 DATE OBTAINED: As-noted

2. 03/24/2008

SURVEYED BY: C. Meier / J. Vick 3. 03/24/2008

4. 07/15/2009 NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

A-1 0.3 0.2 0.04

0.2

A-2 0.8 0.6 0.04

0.0

A-3 0.7 0.4 0.06

0.0

A-4 0.9 0.6 0.06

0.0

A-5 0.7 0.4 0.04

0.0

A-6 0.9 0.5 0.04

0.0

A-7 0.6 0.6 0.03

0.0

A-8 0.8 0.6 0.05

0.0

A-9 0.7 0.8 0.04

0.0

Total 6.4 5.0 0.40

0.2

#801


Rectifier Unit No: 5 Serial No. 010595 / 071095 Location of Rectifier Unit: Area “G” Type of Rectifier Unit: Model ASAI Type of Anodes: N/A Qty: 10 Size: N/A Type of Ground Bed: Point Ground Bed Location: Along fence East of bulk storage Rectifier Mfg.: Universal Installed: 1971, rectifier replaced 2007 Rectifier AC Input: 115 Volts 1 Phase 60 Cycles Rated Rectifier DC Output: 50 Volts 30 Amperes Shunt Rating: 30 Amps 50 mV TARGET OUTPUT: 1 TO 3 VOLTS 0.04 TO 0.1 AMPERES



Date By Comments

C-1 / F-3 7.0 7.2 06/27/06 C.K.M. As-found C-1 / F-2 6.0 5.0 03/24/2008 C.K.M. As-found C-1 / F-3 8.5 8.0 03/24/2008 C.K.M. Adjusted C-A / F-1 2.7 0.4 03/24/2008 C.K.M. Repaired C-A / F-1 2.7 0.2 03/24/2008 C.K.M. Reduced anodes C-A / F-1 2.7 0.2 03/26/08 C.K.M. Retest C-A / F-1 2.7 0.1 03/26/08 C.K.M. Reduced anodes C-A / F-1 2.6 0.18 7/15/09 C.K.M. Annual Test C-A / F-1 1.6 0.06 07/24/09 C.K.M. Adjusted

#801


TABLE V SHEET 1 OF 1



STRUCTURE: Fuel Tanks and Piping 2. Galvanic anode current (mA). 07/15/2009 DATE OBTAINED: As-noted SURVEYED BY: C. Meier / J. Vick

NO.

LOCATION 1. 2.

COMMENTS

01

Drain Line -1128 <10

02

Drain Line -1128 <10

03 Oil/Water Separator – MH #1 StiP3 Tank, inactive ATG

MH #2

#801


TABLE VI SHEET 1 OF 1

SITE NAME: Travis AFB Area G

1. “Native” potential (mV). 07/21/2009

STRUCTURE: Fuel Tanks 2. “On” potential (mV). 07/24/2009 DATE OBTAINED: As-noted 3. “Instant Off” potential (mV). 07/24/2009 SURVEYED BY: C. Meier 4. Achieved polarization (mV). 07/24/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

Tank No. 1795 North -311 -569 -448

137 Adjusted “On” -795 mV

South -307 -558 -443

136

02

Tank No. 1796 North -386 -657 -518

132

South -321 -597 -444

123

#801


Rectifier Unit ID No: 14 Serial No. 091203 Location of Rectifier Unit: Area G Storage Tanks Rectifier Model No.: ASAI Anode Material: Cast Iron No. of Anodes: 6 Anode Dimensions: 2” x 60” long Type of Anode Bed: Point Anode Bed Location: Outside dike to North Rectifier Mfg.: Universal Installed: 2009 Rectifier AC Input: 115 Volts 1 Phase 60 Cycles AC Power Supply Location: Inside Area G office Rated Rectifier DC Output: 40 Volts 10 Amperes Shunt Rating: 10 Amps 50 Millivolts TARGET OUTPUT: 2 TO 5 VOLTS 2 TO 4 AMPERES


DC Output Date Tested By Comments Volts Amps

C-1 / F-1 1.2 1.6 07/21/09 C.K.M. Energized C-1 / F-1 1.2 1.5 07/24/09 C.K.M. Tested C-1 / F-2 3.8 3.8 07/24/09 C.K.M. Adjusted

Appendix D

Test Data

Area B

#801


TABLE VII SHEET 1 OF 1


1. “On” potential (mV). 07/14/2009

STRUCTURE: Area B Fuel Tanks 2. “Instant Off” potential (mV). 07/14/2009 DATE OBTAINED: As-noted 3. “Depolarized potential (mV). 07/03/2006 SURVEYED BY: C. Meier / J. Vick 4. Achieved polarization (mV). 07/14/2009

5. Anode current (mA). 07/14/2009 NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

01

Tank No. 1 (1732) C-1 -1176 -772 -497

275 Product 23’ – 1”

C-2 -1186 -775 -439

336

Anode -1651

210

02

Tank No. 2 (1772) C-1 -562 -413 -205

208 Product 22’ – 1”

C-2 -1252 -472 -256

216

Anode -1622

170

#801


TABLE VIII SHEET 1 OF 2


1. “On” potential (mV). 06/27/2006

STRUCTURE: Area B Tank Farm 2. “Instant Off” potential (mV). 06/27/2006 DATE OBTAINED: As-noted 3. “On” potential (mV). 07/23/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV). 07/23/2009

NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

01

8” pipe at pH from 1732 -1535 -1113 -1265

-442 Isolated

02

8” pipe at pH from 1772 -1544 -1115 -1272

-447 Isolated

03

16” pipe at pH from tanks -1599 -1138 -1361

-432 Isolated

04

16” pipe at dike -1612 -1144

05

8” 1732 pipe at dike -1605 -1134

06

8” 1772 pipe at dike -1627 -1147

07

2” drain at pumphouse - North -238 -238 -1748

-453 Isolated

08

2” drain at fill stand -291 -291 -1855

-410 Isolated

#801


TABLE VIII SHEET 2 OF 2


1. “On” potential (mV). 06/27/2006


5 NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

09

Reclaim Tank - North -402 -402 -1819

-637 Tank is isolated

East -359 -359 -1683

-575

South -1774

-621

10

Dike drain 1732 - Test Station -1005 -1249

Galvanic (30 mA) (3 anodes)

11



12

2” drain at PRT -320 -320 -1811

-682

#801


TABLE VIII - A SHEET 1 OF 2


1. “On” potential (mV). 06/27/2006


NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

01

8” pipe at pH from 1732 -1535 -1113 -2089

-1145 Isolated

02

8” pipe at pH from 1772 -1544 -1115 -2119

-1163 Isolated

03

16” pipe at pH from tanks -1599 -1138 -2466

-1292 Isolated

04

16” pipe at dike -1612 -1144 -2428

-1287

05

8” 1732 pipe at dike -1605 -1134 -2567

-1349

06

8” 1772 pipe at dike -1627 -1147 -2428

-1287

07

2” drain at pumphouse - North -238 -238 -2421

-1251 Isolated

08

2” drain at fill stand -291 -291 -2476

-1305 Isolated

#801


TABLE VIII - A SHEET 2 OF 2


1. “On” potential (mV). 06/27/2006


5 NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

09

Reclaim Tank - North -402 -402 -2301

-1301 Tank is isolated

East -359 -359 -2254

-1308

South -2456

-1335

10



11



12

2” drain at PRT -320 -320 -2244

-1335

#801


Rectifier Unit No: 6 Serial No. 95C2398 Location of Rectifier Unit: South of “B” Pumphouse Type of Rectifier Unit: Model CSAYSL 8-5 N Type of Anodes: Cast Iron Qty: 2 Size: 2 21/32” x 72” Type of Ground Bed: Distributed Ground Bed Location: Near pumphouse Rectifier Mfg.: Good-All Installed: 1995 Rectifier AC Input: 115 Volts 1 Phase 60 Cycles Rated Rectifier DC Output: 8 Volts 5 Amperes Shunt: 8 amps 50 millivolts TARGET OUTPUT: 2 TO 6 VOLTS 0.2 TO 0.5 AMPERES



Date By Comments

C-B / F-1 2.2 0.02 06/27/06 C.K.M. As-found C-B / F-1 2.2 0.01 09/13/07 C.K.M. As-found C-B / F-1 4.9 2.0 03/27/08 C.K.M. Re-energized C-C / F-4 4.8 2.2 07/14/09 C.K.M. As-found C-A / F-2 2.5 0.32 07/24/09 C.K.M. Adjusted

#801


TABLE IX SHEET 1 OF 4


1. “On” potential (mV). 06/28/2006

STRUCTURE: Area “B” Hydrant 2. “Instant Off” potential (mV). 06/28/2006 DATE OBTAINED: As-noted 3. “On” potential (mV). 07/22/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV). 07/22/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

8” transfer riser -1474 -1048 -1464

-1035 Isolated

02

8” truck stand return -1522 -1029 -1501

-1041 Isolated

03

14” return riser -1527 -1049 -1548

-1065 Isolated

04

14” issue riser -1550 -1066 -1528

-1051 Isolated

Truck Off Load / Test Stand

05

6” Truck Off Load -1541 -1062 -1790

-1641

06

6” Truck Test -1547 -1065 -1543

-1443

07

6” Hose Test -1560 -1080 -1720

-1593

#801




1. “On” potential (mV). 06/28/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

08

8” Truck Fill Stand -1599 -1103 -1573

-1079 Isolated

09

Isolation Vault to North -1492 -1023 -1464

-991

09A

Low Point -1489

-1074

Hydrant Loop

10

Hydrant Pit #210 -1926 -1137 -1914

-1052 Isolated 2007

11

Hydrant Pit #211 -1869 -1111 -1844

-1105 Isolated

12

Hydrant Pit #212 -1761 -1058 -1727

-1045 Isolated

13

Hydrant Pit #220 -1881 -1102 -1853

-1093 Isolated

14

LPD #221 -1901 -1114 -1818

-1049 Isolated 2007

14A

Hydrant Pit #222 -1869

-1102 Isolated

#801




1. “On” potential (mV). 06/28/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

15

Hydrant Pit #230 -1904 -1117 -1837

-1070 Isolated

16

Hydrant Pit #231 -1898 -1108 -1819

-1042 Isolated

17

Hydrant Pit #232 -1817 -1094 -1793

-1073 Isolated

18

Hydrant Pit #241 -1841 -1063 -1812

-1051 Isolated

19

Hydrant Pit #251 -1955 -1152 -1905

-1115 Isolated

20

Hydrant Pit #252 -1879 -1117 -1838

-1093 Isolated

21

Hydrant Pit #261 -1835 -1114 -1786

-1077 Isolated

22

Hydrant Pit #262 -1792 -1085 -1779

-1076 isolated

#801




1. “On” potential (mV). 06/28/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

23

Hydrant Pit #271 -1669 -1003 -1710

-1051 Isolated 2007

24

Hydrant Pit #272 -1716 -1098 -1730

-1062 Isolated 2007

25

Hydrant Pit #281 -1634 -997 -1594

-971 Isolated

26

Hydrant Pit #282 -1657 -1044 -1645

-1024 Isolated


-1054 Isolated

27

Hydrant Pit #291 -1648 -1080 -1630

-1057 Isolated

28

Hydrant Pit #292 -1604 -1028 -1593

-1013

Isolated – plastic cracked, full of water-wires damaged

29

Test Station No. 1 – Southeast -1650

-973

30

Test Station No. 2 - Southwest -1760

-1070

31

Test Station No. 3 – Northwest -1700

-1025

32

Test Station No. 4 - Northeast -1030

-870 No good soil access

#801


Rectifier Unit No: 7 Serial No. 95C2398 Location of Rectifier Unit: Near control tower Type of Rectifier Unit: Model CSAYSL 30-12 N Type of Anodes: Cast Iron Qty: N/A Size: N/A Type of Ground Bed: Point Ground Bed Location: N/A Rectifier Mfg.: Good-All Installed: 1995 Rectifier AC Input: 115 Volts 1 Phase 60 Cycles Rated Rectifier DC Output: 30 Volts 12 Amperes Shunt: 15 amps 50 millivolts TARGET OUTPUT: 4 TO 9 VOLTS 5 TO 9 AMPERES



Date By Comments

C-B / F-1 6.2 7.5 06/27/06 C.K.M. As-found C-B / F-1 6.4 7.6 09/13/07 C.K.M. As-found C-B / F-1 6.4 7.6 03/26/08 C.K.M. As-found C-B / F-1 6.3 6.5 07/22/09 J.V. Annual test

Appendix E

Area C

#801


TABLE X SHEET 1 OF 1


1. “On” potential (mV). 07/22/2009

STRUCTURE: Area “C” Fuel Tanks 2. “Instant Off” potential (mV). 07/22/2009 DATE OBTAINED: As-noted 3. “Depolarized” potential (mV). 07/03/2006 SURVEYED BY: C. Meier / J. Vick 4. Achieved polarization (mV). 07/22/2009


LOCATION 1. 2. 3.

4. 5. COMMENTS

01

Tank 1770 (No. 1) Center Cell -353 -251 -246

5 Product 18’ – 8”

Outer Cell -319 -252 -126

126

Anode -1192

240

02

Tank 1777 (No. 2) Center Cell -360 -171 -138

33 Product 34’ – 4”

Outer Cell -380 -286 -238

48

Anode -1331

40

#801


TABLE XI SHEET 1 OF 6


1. “On” potential (mV). 06/29/2006

STRUCTURE: Area “C” Piping 2. “Instant Off” potential (mV). 09/29/2006 DATE OBTAINED: As-noted 3. “On” potential (mV). 07/22/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV). 07/22/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

2” drain at PH - North -608 -542 ---

--- Removed 2006

02

16” pipe at PH -964 -702 -1068

-704 Isolated

03

8” pipe at PH to 1770 -906 -661 -951

-627 Isolated

04

8” pipe at PH to 1777 -948 -682 -1003

-653 Isolated

05

2” drain at PH – Southeast -307 -306 -1195

-759 Isolated

06

8” LPD -1080 -754 -1182

-753

07

16” LPD -1074 -760 -1188

-767

08

8” 1770 at dike -1046 -753 -1104

-787

#801




1. “On” potential (mV). 06/29/2006


5. Achieved polarization (mV). 07/22/2009 NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

09

8” 1777 at dike -1043 -753 -1112

-792 39

10

16” at dike -1043 -758 -1114

-784 26

11

Product Recovery Tank

Isolated

East Side -717 -599 -1288

-806 207

South End -761 -605 -1332

-892 287

West Side -743 -502 -1285

-798 296

12

2” drain riser at PRT -720 -608 -1258

-797 189 Isolated

13

Truck Hose Rack

6” East -1156 -903 -1190

-944 Isolated

2” Drain -692 -548 -1286

-792 Isolated

6” Mid -1135 -885 -1070

-812 Isolated

6” West -1137 -894 -1201

-929 Isolated

#801




1. “On” potential (mV). 06/29/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

14

8” transfer riser -1108 -903 -1214

-950 Isolated

15

8” HSV -1096 -899 -1197

-962 Isolated

16

14” hydrant issue -1097 -901 -1180

-951 Isolated

17

14” hydrant return -1089 -900 -1206

-951 Isolated

18

Truck Stand -1049 -875 -1037

-847 Isolated

19

“H” crossover pit -1108 -911 -1189

-932 See Area “H”

20

Hydrant Pit #410 -1158 -955 -1230

-964 Isolated

21

Hydrant Pit #411 -1132 -923 -1203

-941 Isolated

#801




1. “On” potential (mV). 06/29/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

22

Hydrant Pit #412 -1128 -926 -1211

-945 Isolated

23

Hydrant Pit #420 -1153 -944 -1229

-951 Isolated

24

Hydrant Pit #421 -1169 -951 -1253

-965 Isolated

25

Hydrant Pit #422 -1174 -917 -1257

-947 Isolated

26

Hydrant Pit #430 -1168 -959 -1236

-951 Isolated

27

Hydrant Pit #431 -1176 -961 -1260

-961 Isolated

28

Hydrant Pit #432 -1173 -946 -1290

-945 Isolated

29

Hydrant Pit #440 -1150 -947 -1238

-961 Isolated

#801




1. “On” potential (mV). 06/29/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

30

Hydrant Pit #441 -1149 -938 -1253

-951 Isolated

31

Hydrant Pit #510A -1148 -951 -1208

-949 Isolated


-960 Isolated

32

Hydrant Pit #511 -1147 -951 -1231

-976 Isolated

33

Hydrant Pit #512 -1128 -913 -1206

-951 Isolated

34

Hydrant Pit #513 -1155 -964 -1223

-971 Isolated

35

Hydrant Pit #514 --- --- ---

--- No soil access

66

Hydrant Pit #515 -1139 -950 -1219

-967 Isolated

37

Hydrant Pit #519 -1139 -944 -1215

-957 Isolated

#801




1. “On” potential (mV). 06/29/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

38

Hydrant Pit #520 -1121 -929 -1163

-909 Isolated

39

Hydrant Pit #522 ---- ---- -1229

-971 Isolated

40

Isolation Vault South of #522 (in grass) -1211

-982

#801


TABLE XI - A SHEET 1 OF 2


1. “On” potential (mV). 06/29/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

2” drain at PH - North -608 -542 ---

--- Removed 2006

02

16” pipe at PH -964 -702 -1943

-1084 Isolated

03

8” pipe at PH to 1770 -906 -661 -1946

-1045 Isolated

04

8” pipe at PH to 1777 -948 -682 -2011

-1082 Isolated

05

2” drain at PH – Southeast -307 -306 -2082

-1114 Isolated

06

8” LPD -1080 -754

07

16” LPD -1074 -760

08

8” 1770 at dike -1046 -753

#801


TABLE XI - A SHEET 2 OF 2


1. “On” potential (mV). 06/29/2006


NO.

LOCATION 1. 2. 3.

4. COMMENTS

09

8” 1777 at dike -1043 -753

10

16” at dike -1043 -758

11

Product Recovery Tank

Isolated

East Side -717 -599 -2115

-1151

South End -761 -605 -2122

-1148

West Side -743 -502 -2061

-1184

12

2” drain riser at PRT -720 -608 -2120

-1146 Isolated

13

Truck Hose Rack

6” East -1156 -903 -1511

-1121 Isolated

2” Drain -692 -548 -2094

-1122 Isolated

6” Mid -1135 -885

Isolated

6” West -1137 -894

Isolated

#801


Rectifier Unit No: 8 Serial No 082361 Location of Rectifier Unit: Area “C” Pumphouse Type of Rectifier Unit: ASAI Type of Anodes: N/A Qty: N/A Size: N/A Type of Ground Bed: Point Ground Bed Location: North of pumphouse in grass area Rectifier Mfg.: Universal Installed: 1998/2008 Rectifier AC Input: 115 Volts 1 Phase 60 Cycles Rated Rectifier DC Output: 30 Volts 16 Amperes Shunt: 20 amps 50 millivolts TARGET OUTPUT: 8 TO 13 VOLTS 6 TO 10 AMPERES



Date By Comments

C-E / F-2 46.1 5.3 06/29/06 C.K.M. As-found C-E / F-4 49.5 5.8 06/29/06 C.K.M. Adjusted C-A / F-3 4.3 4.6 09/14/07 C.K.M. As-found C-A / F-4 5.9 8.6 09/14/07 C.K.M. Adjusted C-B / F-3 9.1 6.7 03/27/08 C.K.M. As-found C-B / F-5 10.9 8.6 03/27/08 C.K.M. Adjusted C-1 / F-6 10.9 8.4 07/22/09 C.K.M. Annual survey C-1 / F-6 12.0 8.0 07/24/09 C.K.M. Isolated piping

Appendix F

Test Data

Area H

#801


TABLE XII SHEET 1 OF 2


1. “On” potential (mV). 07/22/2009

STRUCTURE: Area H Fuel Tanks 2. “Instant Off” potential (mV). 07/22/2009 DATE OBTAINED: As-noted 3. “Depolarized” potential (mV). 09/18/07 SURVEYED BY: C. Meier / J. Vick 4. Achieved polarization (mV). 07/22/2009

5. Anode current (Amps). 07/22/2009 NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

01

Tank No. 1769 – Cells C-1 -753 -458 -167

291 Product 21’ – 7”

C-2 -1380 -1003 -896

107 54’

C-3 -728 -502 -191

311

Z-1 +420 +714 +971

257

Z-2 -218 +103 +236

133

Z-3 +389 +608 +935

Anodes A-1

0.40

A-2

1.04

A-3

0.14

02

Tank No. 1768 – Cells C-1 -1556 -590 -113

377 Product 20’ – 0”

C-2 -1200 -464 -118

346 54’

C-3 -2564 -611 -113

498

Z-1 -1081 +550 +1014

464

Z-2 -1243 +521 +933

412

Z-3 -1375 +481 +1002

521

#801


TABLE XII SHEET 2 OF 2


1. “On” potential (mV). 07/22/2009

STRUCTURE: Area H Fuel Tanks 2. “Instant Off” potential (mV). 07/22/2009 DATE OBTAINED: As-noted 3. “Depolarized” potential (mV). 09/14/2007 SURVEYED BY: C. Meier / J. Vick 4. Achieved polarization (mV). 07/22/2009

5. Anode current (Amps). 07/22/2009 NO.

LOCATION 1. 2. 3.

4. 5. COMMENTS

02

(cont’d) Anodes A-1

0.49

A-2

0.48

A-3

0.47

#801


Rectifier Unit ID No: 10 Serial No. C-060027 Location of Rectifier Unit: H Pumphouse Rear Wall Rectifier Model No.: CAYSA 30-8 Z91 Anode Material: Mixed metal oxide No. of Anodes: 4’ centers Anode Dimensions: 0.25” wire Type of Anode Bed: Array Anode Bed Location: Under tank No. 1768 Rectifier Mfg.: Corrpro Installed: 2006 Rectifier AC Input: 115 Volts 1 Phase 60 Cycles AC Power Supply Location: Inside pumphouse Rated Rectifier DC Output: 30 Volts 8 Amperes Shunt Rating: 10 Amps 50 Millivolts TARGET OUTPUT: 3 TO 6 VOLTS 1.2 TO 3 AMPERES



C-A / F-4 4.9 2.1 09/14/07 C.K.M. As-found C-A / F-4 4.9 1.6 03/25/08 C.K.M. As-found C-A / F-4 4.9 1.5 07/22/09 C.K.M. Annual test

#801


Rectifier Unit ID No: 9 Serial No. C-060026 Location of Rectifier Unit: H Pumphouse Rear Wall Rectifier Model No.: CAYSA 30-8 Z91 Anode Material: Mixed metal oxide No. of Anodes: 4’ centers Anode Dimensions: 0.25” wire Type of Anode Bed: Array Anode Bed Location: Under tank No. 1769 Rectifier Mfg.: Corrpro Installed: 2006 Rectifier AC Input: 115 Volts 1 Phase 60 Cycles AC Power Supply Location: Inside pumphouse Rated Rectifier DC Output: 30 Volts 8 Amperes Shunt Rating: 10 Amps 50 Millivolts TARGET OUTPUT: 2 TO 5 VOLTS 1.7 TO 3 AMPERES



C-A / F-3 3.3 2.5 09/14/07 C.K.M. As-found C-A / F-3 3.3 2.0 03/25/08 C.K.M. As-found C-A / F-3 3.5 1.6 07/22/09 C.K.M. Annual test C-A / F-4 4.8 2.7 07/22/09 C.K.M. Adjusted

#801


TABLE XIII SHEET 1 OF 2


Galvanic Anode Systems

STRUCTURE: H Pumphouse Piping 1. “On” potential (mV). 09/14/07 DATE OBTAINED: As-noted 2. Anode current (mA). 09/14/07 SURVEYED BY: C. Meier / J. Vick 3. “On” potential (mV). 07/22/2009


LOCATION 1. 2. 3.

4. 5. COMMENTS

01

T-1768 Drain Line -1405 180 -1395

160 Test station

02

T-1769 Drain Line -1293 210 -1422

170 Test station

03

Drain lines at pumphouse -1382 140 -1386

100 Test station

04

PRT Tank - Test Station -818 710 -1562

60 Test station, isolated 2006

North End -972 -1630

East Side -874 -1620

South End -916 -1633

05

Stationary Cell at PRT tank

South manhole -942

6” riser -943

North manhole -944

2” drain out -810

Isolated

#801


TABLE XIII SHEET 2 OF 2


Galvanic Anode Systems

STRUCTURE: H Pumphouse Piping 1. “On” potential (mV). 09/14/07 DATE OBTAINED: As-noted 2. Anode current (mA). 09/14/07 SURVEYED BY: C. Meier / J. Vick 3. “On” potential (mV). 07/22/2009


LOCATION 1. 2. 3.

4. 5. COMMENTS

05

(cont’d) 1” drain out -810

Isolated

Top South manhole -811

Isolated

1” conduit west -914

Grounded to 2” line entering

tank

#801


TABLE XIV SHEET 1 OF 8


1. “On” potential (mV). 09/18/2007

STRUCTURE: H Area Piping 2. “Instant Off” potential (mV). 09/18/2007 DATE OBTAINED: As-noted

3. “On” potential (mV). 07/22/2009

SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV). 07/22/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

8” Receipt to 1769 at PH Tank Fill -1053 -908 -1153

-936 Isolated

02

8” Receipt to 1768 at PH Tank Fill -1054 -907 -1167

-929 Isolated

03

16” Issue at PH Tank Suction -1045 -895 -1153

-930 Isolated

04

8” Transfer at PH -1057 -879 -1130

-896 Isolated

05

14” Return at PH -1096 -936 -1143

-915 Isolated

06

14” Issue at PH -1091 -934 -1148

-919 Isolated

07

2” leak detection Return -536 -516 -1107

-892 Isolated, bonded 2006

08

2” leak detection Transfer -447 -454 -1103

-881 Isolated, bonded 2006

#801




1. “On” potential (mV). 09/18/2007


3. “On” potential (mV). 07/22/2009


NO.

LOCATION 1. 2. 3.

4. COMMENTS

09

2” leak detection at road

North -557 -535 -1216

-962 Bonded 2006

South -641 -629 -1224

-954 Bonded 2006

10

Issue Pig trap 14” In -1147 -976 -1206

-950 Isolated (-1040 / -832)

14” Out -1171 -1009 -1221

-973 Isolated

4” Drain -1181 -1012 -1197

-945 Isolated (-1093 / 891)

11

Return Pig trap 14” In -1132 -970 -1218

-951 Isolated

14” Out -1144 -977 -1198

-940 Isolated

4” Drain -1168 -986 -1217

-953 Isolated

Hydrant Loop #300

12

Test Station No. 1 -1337 -1023 -1253

-989

#801




1. “On” potential (mV). 09/18/2007


3. “On” potential (mV). 07/22/2009


NO.

LOCATION 1. 2. 3.

4. COMMENTS

13

Test Station No. 2 -1305 -1015 -1253

-983

14

Test Station No. 3 -1301 -1016 -1255

-983

15

Test Station No. 4 -1289 -1099 -1261

-990

16

Test Station No. 5 -736 -611 -1115

-984 One lead broken

17

Isolation Vault

18

Test Station No. 6 -1284 -1014 -1211

-952

19

Test Station No. 7 -722 -717 -1095

-870

20

Test Station No. 8 -724 -718 -1252

-993 HP-322 Isolated

#801




1. “On” potential (mV). 09/18/2007


3. “On” potential (mV). 07/22/2009


NO.

LOCATION 1. 2. 3.

4. COMMENTS

21

Test Station No. 9 -759 -754 -1244

-983

22

Test Station No. 10 -740 -736 -1089

-811 HP-332 Isolated, concrete

23

Test Station No. 11 -747 -742 -889

-712 Concrete in port

24

Test Station No. 12 -772 -751 -1264

-1004

25

Test Station No. 13 -698 -695 -1287

-994

26

Test Station No. 14 -739 -733 -1244


27

Test Station No. 15 -754 -751 -1271

-1021

Construction zone wire disconnected (slab moved)

28

Test Station No. 16 -719 -718 -1262

-1005

HP-341 Isolated Construction zone

#801




1. “On” potential (mV). 09/18/2007


3. “On” potential (mV). 07/22/2009


NO.

LOCATION 1. 2. 3.

4. COMMENTS

29

Test Station No. 17 -746 -744 -1218

-1021 Backhoe on station

30

Test Station No. 18 -729 -726 -1233


31

Test Station No. 19 -744 -742 -1262

-1009

32

Test Station No. 20 -740 -738 -1242

-993

33

Test Station No. 21 -739 -737 -1238

-986

34

Test Station No. 22 -735 -733 -1238

-985

35

Test Station No. 23 -727 -725 -1141


36

Test Station No. 24 -743 -739 -1206

-1007

#801




1. “On” potential (mV). 09/18/2007


3. “On” potential (mV). 07/22/2009


NO.

LOCATION 1. 2. 3.

4. COMMENTS

37

Test Station No. 25 -737 -733 -1255


38

Isolation Vault --- ---

Pipe electrically isolated

39


No soil access (concrete in bottom of T/S

40

Test Station No. 27 -1279 -1024 -1236


41

Test Station No. 28 -1320 -1078 -1152

-918

42


No wireNo test wire

43

Test Station No. 30 -1278 -1022 ---

--- No test wires


-929 HP-320(-1247/-1021)isolated

44

Test Station No. 31-A --- --- -1280

-1053

#801




1. “On” potential (mV). 09/18/2007


3. “On” potential (mV). 07/22/2009


NO.

LOCATION 1. 2. 3.

4. COMMENTS

45

Test Station No. 32 --- --- -1231

-989 No access 2008

46

Test Station No. 33 --- --- -1274

-1025 HP – 310 isolated

Test Station No. 33A -1240

-992

47

Test Station No. 34 (Not found) --- --- ---

--- Not found

48

Test Station No. 35 --- --- -1228

-982

49

Test Station No. 36 --- --- -1221

-996 HP-311 isolated(wire

disconnected from T/S)

50

Test Station No. 37 --- --- -1233

-986 Wire disconnected from T/S

51

Test Station No. 38 --- --- -1215

-965 HP-312 isolated

52

Test Station No. 39 --- --- ---

--- Not located 2008/2009

#801




1. “On” potential (mV). 09/18/2007


3. “On” potential (mV). 07/22/2009


NO.

LOCATION 1. 2. 3.

4. COMMENTS

53

Test Station No. 40 --- --- -1233

-983

54

Test Station No. 41 --- --- -1238

-988

55

Test Station No. 42 --- --- -1248

-997

56

Test Station No. 43 --- ---

Not found

57

Test Station No. 44 --- ---

Not found

#801


TABLE XV SHEET 1 OF 1


Current flow within bond boxes

STRUCTURE: H Area Piping Bonds 1. Current flow (Amps). 07/22/2009 DATE OBTAINED: As-noted SURVEYED BY: C. Meier / J. Vick

NO.

LOCATION 1.

COMMENTS

01

Bond box south wall of pumphouse H

To 14” Hydrant <0.01

To pipe

16” Issue <0.01

From pipe

8” T-1769 <0.01

From pipe

8” T-1768 <0.01

From pipe

02

Bond box at pig trap

“C” Loop <0.01

From pipe

14” Issue Loop <0.180

From pipe

14” Return Loop <0.01

From pipe

14” To PH <0.210

To pipe

14” From PH <0.020

From pipe

Appendix G

Test Data

Transfer and Receipt Lines

#801


TABLE XVI SHEET 1 OF 2


1. “On” potential (mV) 03/24/2008

STRUCTURE: Receipt Pipeline 2. “Instant Off” potential (mV) 03/24/2008 DATE OBTAINED: As noted 3. “On” potential (mV) 07/17/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (nV) 07/17/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

KM valve station – Marina -1451 -1223 -1415

-1216

02

T/S #1 near trailer -1442 -1232 -1411

-1203

03

T/S #2 near Eagles -1477 -1231 -1398

-1188

04

T/S #3 near Karlas -1423 -1209 -1449

-1223

05

T/S #4 Marina N/A N/A N/A

N/A Not located

06

T/S #5 -1422 -1207 -1414

-1195

07

T/S #6 Marsh -1416 -1187 -1423

-1201

08

T/S #7 Grizzly Island Pipe -1407 -1183 -1422

-1192 Casing filled with water

Casing -1111 -1036 -1123

-1050

#801


TABLE XVI SHEET 2 OF 2


1. “On” potential (mV) 03/24/2008

STRUCTURE: Receipt Pipeline 2. “Instant Off” potential (mV) 03/24/2008 DATE OBTAINED: As noted 3. “On” potential (mV) 07/17/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV) 07/17/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

09

T/S #8 Chevron -1431 -1205 -1420

-1182 Damaged by road construction

10

T/S #9 Creek Pipe -1419 -1179 -1414

-1166 Isolated

Casing -751 -751 -717

-716

11

T/S #10 Lawler Ranch Pipe -1449 -1199 -1448

-1194 Casing filled with water

Casing -1446 -1197 -1428

-1166

12

T/S #11 -1436 -1212 -1438

-1214

13

T/S #12 Hwy 12 Pipe -1446 -1201 -1429

-1164 Isolated

Casing -668 -664 -647

-644

14

Vault near Walters Road -1421 -1096 -1413

-1104 Need test station

15

Vault near South Gate – 6 inch diameter -1656 -1192 -1643

-1161

8 inch diameter -1636 -1188 -1650

-1152

#801


TABLE XVII SHEET 1 OF 2


1. “On” potential (mV) 03/24/2008

STRUCTURE: Transfer Lines 2. “Instant Off” potential (mV) 03/24/2008 DATE OBTAINED: As noted 3. “On” potential (mV) 07/17/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV) 07/17/2009

NO.

LOCATION 1. 2. 3.

4. COMMENTS

01

Pumphouse 705 – 8 inch diameter 1778 -987 -958 -1021

-984

8 inch diameter T/T -946 -921 -925

-895

8 inch diameter Manifold -899 -882 -1087

-985

8 inch diameter middle -1003 -978 -814

-806 Isolated, after bond -943 mV

02

Pumphouse 708 – 8 inch diameter B/G -1005 -978 -1040

-979

8 inch diameter T/T -995 -964 -1006

-972

8 inch diameter C/H -1013 -983 -1010

-983

8 inch diameter receipt -1013 -981 -1014

-974

12 inch diameter 1778 -945 -920 -977

-945

03

Vault outside KM meter

8 inch diameter B/G -1150 -1079 -1296

-1174

8 inch diameter receipt -1184 -1113 -1284

-1149

#801


TABLE XVII SHEET 2 OF 2


1. “On” potential (mV) 03/24/2008

STRUCTURE: Transfer Lines 2. “Instant Off” potential (mV) 03/24/2008 DATE OBTAINED: As noted 3. “On” potential (mV) 07/17/2009 SURVEYED BY: C. Meier / J. Vick 4. “Instant Off” potential (mV) 07/17/2009

NO

LOCATION 1. 2. 3.

4. COMMENTS

04

Riser at G -1198 -1152 -1161

-1113

05

LPD inside G -1202 -1195 -1184

-1135

06

Bulk Storage Manifold – 8 inch diameter N -948 -931 -925

-909

2- 8 inch PH 706 to B/G -781 -773 -742

-735 Risers coated 2009

2- 8 inch from 1773 -773 -761 -735

-724

8 inch from 1757 -850 -829 -755

-741

8 inch diameter S -1028 -986 -1013

-971

07

Tank piping vaults bulk storage

T – 1757 -936 -903 -986

-949

T – 1778 -813 -791 -814

-795 After isolation -1010 mV

T - 1758 -1095 -1035 -1111

-1051

#801


TABLE XVIII SHEET 1 OF 1

SITE NAME: Travis AFB Current flow at bond box in bulk storage at pumphouse 705 STRUCTURE: Transfer Lines DATE OBTAINED: As noted SURVEYED BY: C. Meier / J. Vick

NO.

LOCATION

03/08

07/09

COMMENTS

01

10 inch diameter – 708 – SW +0.1 +0.00

02

8 inch diameter – H/C +0.22 -0.04

03

8 inch diameter – Tank/Tank +0.18 +0.11

04

8 inch diameter – B/G +0.08 -0.06

05

12 inch diameter – 1778 -0.36 +0.00

06

8 inch diameter – 705 +0.08 +0.00

07

8 inch diameter – 1778 -0.30 +0.00

(+) Flow to pipe

(-) Flow off pipe

#801


Rectifier Unit No: 10 Serial No. 561437 Location of Rectifier Unit: Near South Gate Type of Rectifier Unit: Model H51BR Type of Anodes: N/A Qty: N/A Size: N/A Type of Ground Bed: Point Ground Bed Location: South of rectifier Rectifier Mfg.: Good-All Installed: 1956 Rectifier AC Input: 230 Volts 1 Phase 60 Cycles Rated Rectifier DC Output: 36 Volts 50 Amperes Shunt: 60 Amps 50 Millivolts TARGET OUTPUT: 8 TO 12 VOLTS 8 TO 14 AMPERES



Date By Comments

N/A 8.8 12.6 06/30/06 C.K.M. As-found N/A 9.9 8.8 7/17/09 C.K.M. Annual Test

#801


Rectifier Unit No: 12 Serial No. 4181 Location of Rectifier Unit: Kinder Morgan Meter Station Type of Rectifier Unit: Air Cooled Type of Anodes: N/A Qty: N/A Size: N/A Type of Ground Bed: Point Ground Bed Location: West of meter station Rectifier Mfg.: Lester Installed: 1956 Rectifier AC Input: 230 Volts 1 Phase 60 Cycles Rated Rectifier DC Output: 20 Volts 20 Amperes TARGET OUTPUT: 4 TO 9 VOLTS 1 TO 2 AMPERES



Date By Comments

12% 2.2 0.85 06/30/06 C.K.M. As-found 25% 6.7 1.25 7/17/09 C.K.M. Annual Test

Appendix H

Drawings

Bulk Storage (A-1864-1/5)(A-1862-1/3)

Appendix I

Drawings

Area G (A-1861-1/7)

Appendix J

Drawings

Area B (A-1865-1/5)

Appendix K

Drawing

Area C (A-1863-1/6)

Appendix L

Drawings

Area H (A-2226-1/5)

Appendix M

Drawings

Receipt Pipeline (A-2228-1/2)(A2735-1)

Appendix N

Drawing

AGE Facility (A-2422-1)

Appendix O

Drawing

Motor Pool (A-2423-1)

Appendix P

Drawing

Engine Test Facility (A-2424-1)

Appendix Q

Quarterly Potential Data Sheets

Reading No. Structure/Location Jan April July October

1 Bulk Storage T-1757 Cell #12 Bulk Storage T-1758 Cell #13 Bulk Storage T-1773 Cell #14 Bulk Storage T-1778 Cell #15 Bulk Storage Fill Stand T/S #16 Bulk Storage Fill Stand T/S #97 Bulk Storage Fill Stand T/S #78 Area G 20" Riser East9 Area G Hydrant Pit 908

10 Area G North Drain11 Area G T-1795 North Port12 Area B T-1732 Cell #113 Area B T-1772 Cell #114 Area B PRT Tank - North15 Area B 16" Riser - East16 Area B 8" Transfer17 Area B Hydrant Pit 21018 Area B Hydrant Pit 29219 Area C T-1770 Cell #120 Area C T-1777 Cell #221 Area C PRT Tank - North22 Area C 16" Riser - West23 Area C 8" Transfer24 Area C Hydrant Pit 41025 Area C Hydrant Pit 44026 Area C Hydrant Pit 51027 Area C Hydrant Pit 52228 Area H T-1769 Cell #129 Area H T-1768 Cell #130 Area H Drain Line T/S31 Area H PRT Tank T/S32 Area H 8" Transfer

Technician: _____________________

Cathodic ProtectionQuarterly PotentialsDESC Fuel Systems

Travis Air Force BaseYear: _________

33 Area H Hydrant T/S 134 Area H Hydrant T/S 2035 Area H Hydrant T/S 3836 Bulk Storage PH-705 8" 177837 Bulk Storage PH-708 8" B/G38 Receipt - Marina Riser39 Receipt - T/S #740 Receipt - T/S #1241 Receipt - Vault South Gate

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