CALNEV PIPELINE CO

Incident Narrative

8/5/2016 SUPPLEMENTAL: WE ARE FINALIZING THIS REPORT BECAUSE AND FUTURE ACTIVITIES INCLUDE ONLY LONG-TERM REMEDIATION AND MONITORING BEING CONDUCTED UNDER THE AUSPICES OF THE REGION WATER QUALITY CONTROL BOARD AND CA FISH AND WILDLIFE SERVICE. DURING SCHEDULED WORK ASSOCIATED WITH THE DEVORE PIPELINE RELOCATION PROJECT, CREWS DISCOVERED A GASOLINE DRIP (2 DRIPS PER SECOND) FROM AN O-RING FITTING ON A PIPELINE CHECK-VALVE LOCATED ON THE CALNEV 14-INCH PIPELINE. AGENCY NOTIFICATIONS WERE CONDUCTED AND CREWS WERE DISPATCHED AND PROCEDURES DEVELOPED TO DRAIN 4500 BBLS BACK INTO COLTON NORTH AND MAKE REPAIRS TO LEAKING THREADS ON A 3"" FITTING. SUBSEQUENT INVESTIGATION FOUND O-RING DAMAGE TO ONE OF THE TWO O-RINGS (ONE SIDE OF THE VALVE). THIS DAMAGE IS LIKELY ATTRIBUTED TO IMPROPER INSTALLATION. ALSO, SOIL SAMPLING DETERMINED HYDROCARBON CONSTITUENTS OF MULTIPLE PRODUCTS (GASOLINE, DIESEL, AND JET FUEL). NOTE: PART A, #4 AT 1130 A SHEEN OF UNKNOWN ORIGIN WAS DISCOVERED AND DETERMINED AT 1140 TO BE A RELEASE. NOTE: PART A, #9 RELEASE VOLUME ESTIMATE BASED ON INITIAL SOIL SAMPLING AND LAB ANALYSIS. ADDITIONAL (DEEPER) SAMPLING WILL BE CONDUCTED SUBJECT TO PERMIT CONDITIONS. A SUPPLEMENT TO THIS REPORT WILL BE MADE. 2/19/15 SUPPLEMENT: DIVISION/CALCULATION ERROR FOUND; THE INITIAL VOLUME ESTIMATE IS 150 GALLONS, WHICH IS 3.57 BBLS, NOT 5.82 AS REPORTED YESTERDAY. NOTE: PART C, #4 MAINLINE WAS INSTALLED IN 1970, ASSUMED VALVE INSTALLED AT SAME TIME, WILL CONFIRM ON SUPPLEMENTAL REPORT. NOTE: PART D, #4 ADDITIONAL SAMPLING WILL BE CONDUCTED TO FURTHER ASSESS. NOTE: PART D, #8 COSTS WILL BE UPDATED IN SUPPLEMENTAL REPORT(S). PUT $1 IN (A) & (F) TO SUBMIT THIS REPORT, WILL SUPPLEMENT LATER. NOTE: PART E, #2 MOP OF SYSTEM IS 1440 PSIG, HOWEVER, THE CHECKVALVE THAT FAILED IS RATED 900 ANSI (2160 PSIG) NOTE: PART G, #6 THIS TYPE OF FITTING SHOULD NOT HAVE BEEN BURIED. IT WAS DONE YEARS AGO BY A FORMER OPERATOR.