The URL can be used to link to this page

Home My WebLink AboutUNDERGROUND TANK-CORROSION- _~ ~ .. ~ ELECTRICAL SERVICES, IN~. ANNUAL CATHODIC PROTECTION SYSTEM SURVEY (~ WHOLESALE FUELS ~ {22-0-E-~T ~-~RU_N~_GE LA_N_E~f_f ~BAKE~F~E~ ~FORlqI~ ' Prepared For: Jaco Oil Company PO Box 1807 Bakersfield, California 93303 Prepared By: Corrosion-Electrical Services, Inc. 14020 Maryton Avenue Santa Fe Springs, California 90670 December 2002 14020 MARYTON AVENUE, SANTA FE SPRINGS, CA£1FORNIA 90670 PHONE: (562) 921-9522 FAX: (562) 921-68B$ C~4. LICENSE C-lO 684718 CORROSION- ELECTRICAL SER VICES~ INC. TABLE OF CONTENTS INTRODUCTION 1 BACKGROUND 1 SURVEY PROCEDURES 1 SURVEY ANALYSIS 2 CONCLUSIONS AND RECOMMENDATIONS 2 TABLES - · Potential Survey Data Sheet · Cathodic Protection System Maintenance Record Sheet · Rectifier Data Sheet 14020 MARYTON AVENUE, SANTA FE SPRINGS, CALIFORNIA 90670 PHONE: (562) 921-9522 FAX: ($62~1 921-6885 -.. CA. LICENSE C-lO 684718 CORR OSION- ELECTRICAL SER VICES INC. INTRODUCTION This report contains information pertinent to the successful operation of the cathodic protection system located at Wholesale Fuels, 220 East Brundage Lane, Bakersfield, California, including present and historical data, system specifications, sur~ey. procedures and recommended maintenance program. The.cathodic protection system is designed to protect four 20,000-gallon and two 10,000-gallon underg-round storage tanks, and associated subsurface metallic piping and vents. BACKGROUND The impressed current cathodic protection system installed at this facility in 1998 consists of the following items: Nine 3-inch diameter x 60-inch long graphite anodes installed in three 10-inch diameter x 35-foot deep cathodic protection wells (CPW). The wells are backfilled with petroleum coke breeze and vented to the surface via PVC piping. A traffic- rated road-box is placed over each anode well. The anodes are connected to the rectifier by a header cable. · One J.A. Electronics rectifier rated at 50 volts and 12 Amperes (DC). · Cathodic protection test box that includes wire test leads for each underground storage tank. · Miscellaneous electrical fittings and cathode header cable. SURVEY PROCEDURES The following procedures were followed during the annual surveY: The rectifier was inspected and the operating voltage and amperage were noted. · Structure-to-soil potentials were measured with a digital voltmeter connected between the structure and a saturated copper-copper sulfate reference electrode in contact with the earth. Test point locations are listed on the attached data sheets. · During the above procedure the tap settings on the rectifier were adjusted as needed to ensure that sufficient protective current is being applied to the underground metallic structures at this facility. 14020 MAR YTON A b'ENUE, SANTA FE SPRINGS, CAZIFO RdVIA 90670 PHONE: (562) 921-9522 FAX: (562) 921-6885 CA. LICENSE C-lO 684718 I CORROSION' ELECTRICAL SER VICES INC. SURVEY ANALYSIS Structure to soil potential measurements for each test point are above National Association of Corrosion Engineers (NACE) design criteria of 850 millivolts (mV) with cathodic protection applied. Rectifier output (DC Volts and amperes) and potential measurement data for each test location are shown on the enclosed data sheets. CONCLUSIONS AND RECOMMENDATIONS Based upon our visual inspection and the data obtained during the survey, Corrosion- . Electrical Services, Inc., concludes the following: · The cathodic protection system is operating as designed and the underground tanks and associated piping are receiving adequate protective current. · Corrosion-Electrical Services, Inc., recommends that the rectifier data (volts and amps) be record6d weekly on the attached Rectifier Data Sheet and mailed or faxed to Corrosion-Electrical Services, Inc., on a quarterly basis. If anY significant changes are observed in the volts and/or amperes on the rectifier, Corrosion-Electrical . Services, Inc., should be notified immediately. · Along with the above CorrosiOn-Electrical Services, Inc., recommends, that in order to protect your investment, an annual survey is performed by a qualified individual. We will forward a letter approximately one year from this date requesting your authorization to perform this service on your behalf. 14020 MARYTON At"ENUE, SANT,4 FE SPRINGS. CALIFORNIA 90670 PHONE: (562) 921-9522 'FA,V: (56,?) 921-6885 C,4. LICENSE C-lO 684718 ~ 2 CoRRosION_ .. ELECTRICAL SER VICES INC. This annual survey was conducted in accordance with the procedures described in the National Association of Corrosion Engineers (NACE) Standard Recommended Practice RP0285-95, Corrosion Control oj~ Underground Storage Tank Systems by Cathodic Protection and American Petroleum Institute (API) Recommended Practice 1632, Cathodic : .-Protection of Underground Petroleum Storage Tanks and Piping· Systems.. Thank you for the opportunity to assist you in this phase of your cathodic mitigation program. If you have any qUestions please feel free to contact us at your convenience. Respectfully, CORROSION-ELECTRICAL SERVICES, INC. President 14020 MARYTON A VENUE, SANT,4 FE SPRING& CALIFORNIA 90670 PHONE: (562) 921-9522 FA.Y: (562) 921-6885 C.4. LICENSE C. IO 684718 3 ~ CORROSION; ELECTRICAL SER VICES, INC.. CLIENT: WHOLESALE FUELS CES NO: $2266 TEST DATE: 12-6-02 SERVICE STATION NO: SYSTEM LOCATION: 220 EAST BRUNDAGE LANE. BAKERSFIELD. CALIFORNIA ENGINEER: TECHICIAN: - L. BREWI$ RECTIFIER DATA .. MANUFACTURER: ~.A. ELECTRONICS SERIAL NO.: - 98059 RATING: 50 VOLTS: 12 AMPERES: VAC: 120 OUTPUT: .6 VOLTS: 10 AMPERES: MONITOR CHECK: SETFING: A - 4 HOURMETER READING: 37419.3 HRS LAST READING: 27332.7 ' HRS DATE: 10-11-01 CHANGE IN READING: 10086.6 HRS ACTUAL HOURS: 10080 HRS DAYS OFF: 0 FIELD TEST DATA ' STRUCTURE-TO-SOIL TEST LOCATION POTENTIAL (MV) I (on) I (off) FUEL TANK gl - LS DIESEL -1141 -735 FUEL TANK #2 - E~ HOYED DIESEL -1102 -738 FUEL TANK #3 - LS DIESEL -1086 -740 FUEL TANK #4 - UNLEADED -1069 -742 FUEL TANK #5 - DYES DIESEL -1058 -739 FUEL TANK #6 - SUPER UNLEADED -1050 -745 VENTS - -1069 -640 DISPENSER - -970 -640 , DISPENSER - -970 . -640 DISPENSER - -970 -640 DISPENSER - -970 -640 i DISPENSER - -970 -640 DISPENSER - -970 -640 WATER LINES - GAS CO. METER - ELECTRICAL CONDUIT - -971 -640 CuCuSO4 REFERENCE LOCATION @: CP TEST BOX REMARKS: (FIELD) ANNUAL SURVEY. SYSTEM IS OPERATING AS DESIGNED. ALL POTENTIAI.~ AIRE. ABOVE THE NACE CRITERIA OF -850 MILLWOLT$, 14020 MAR YTONAVENUE, SANTA FE SPRINGS, CALIFORNIA 90670 PHONE: (562) 921-9522 F.,LY: (562) 921-6885 CA. LICENSE C-lO 684718 CORROSION-. ELECTRICAL SER VICES INC. CATHODIC PROTECTION SYSTEM MAINTENANCE RECORD SHEET LOCATION OF RECTIFIER UNIT: NORTH WALL IN WAREHOUSE TYPE OF RECTIFIER: AIR COOLED WALL MOUNTED TYPE OF ANODES: GRAPHITE QUANTITY: 9 SIZE: 3 X 60 LONG RECTIFIER MANUFACTURED BY: [.A. ELECTRONICS SERIAL #98059 RECrIFIER AC INPUT:- 120 VOLTS 1 PHASE 6_Q0 CYCLE - RECTIFIER DC OUTPUT: 50 VOLTS 12 AMPERES DATE SYSTEM TURNED ON: AUGUST 29,' 1998 RECTIFIER READINGS RECTIFIER SETrING DC OUTPUT BY DATE REMARKS COARSE FINE VOLT AMPS A 5 11 12 GS 8-29-98 START UP SURVEY A 4 9 9.5 · GS 3-2-99 FOLLOW UP SURVEY A 4 9 9.5 CA 10-18-99 ANNUAL SURVEY A 4 7 9.5 LB 10-11-01 ANNUAL SURVEY A 4 6 10 LB 12-6-02 ANNUAL SURVEY 14020 MARYTON AVENUE, SANTA FE SPRINGS, CALIFORNIA 90670 PHONE: (562) 921-9522 FAX: (562)~921-6885 CA. LICENSE C-lO 684718 · .CORROSION- " , , ELECTRICAL SER VICES~ INC." . RECTIFIER QUARTERLY RECORDING SHEET RECORD WEEKLY JOB # S2266 OWNER WHOLESALE FUELS LOCATION 220 E. BRUNDAGE LANE, BAKERSFIELD, CA. UNIT D.C. OUTPUT ' DATE TIME REMARKS . BY NO. VOLTS AMPS 1 6 10 ~ 12-6202 ANNUAL SURVEY LB UNIT NO. 1 UNIT LOCATION: NORTH WALL IN WAREHOUSE UNIT NO. UNIT LOCATION: NORMAL RANGE: UNIT NO. 1 VOLTS 3 - 9 AMPS 7 - 12 UNIT NO. VOLTS AMPS NOTE: IF UNIT STABILIZES OUTSIDE NORMAL, NOTIFY YOUR ENGINEER !!! MAIL TO CORROSION-ELECTRICAL SERVICES, INC. QUARTERLY 14020 MARYTON AI,'ENUE' SANE4 FE SPRINGS, CALIFOI~'VIA 90670 PHONE:'(562) 921-9522 FAX:' (562) 921-6885 " · C.4. LICENSE C-IO 684718