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02/22/99 MON 07:30 FAX 510 842 6915 CPL HELP H.O. X11X12 <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> MONITORING AND REPORTING PROGRAM NO. 95-801 <br /> CHEVRON PIPELINE COMPANY <br /> DIVIDEND PROPERTY <br /> SAN JOAQUIN COUNTY <br /> Prior to construction, plans and specifications for ground water monitoring and/or extraction wells <br /> shall be submitted to Board staff for review and approval. After construction, new wells are to be <br /> sampled and analyzed for the constituents below and added to the monitoring program. <br /> GROUND WATER MONITORING <br /> There are nine operable ground water monitoring wells (MWs) as shown in Attachment 1. The <br /> remaining wells have been abandoned. ;MWs with free phase petroleum product or visible <br /> shall be monitored for product thickness and depth to ground water only. The ground water <br /> monitoring program for the nine monitoring wells, and any additional wells installed subsequently, <br /> except for wells containing free phase petroleum product or visible sheen, shall include the <br /> following: <br /> Constituents Units Sample Sample Test Sampling <br /> Type Preparation Method Frequency <br /> Free Product Thickness inches — — — Quarterly <br /> Depth to Ground Water Feet — — — Quarterly <br /> Benzene' µg/1 Grab 5040/5030= EPA 8020 Quarterly <br /> Toluene' µg11 Grab 5040/50302 EPA 8020 Quarterly <br /> Ethylbenzene' µg/l Grab 5040/50302 EPA 8020 Quarterly <br /> Xylene' µg/1 Grab 5040/5030' EPA 8020 Quarterly <br /> Polynuclear Aromatic µg/l Grab 3510/3520 EPA 8310 Quarterly <br /> Compounds (PNAs) <br /> TPH as Purgeable mg/I Grab 5040/5030' Modified 8015 Quarterly <br /> Crude (C, - C,,)'• <br /> TPH as Extract le mg/1 Grab 5520C13510' Modified 8015 Quarterly <br /> Crude (Cx - ,*) -' <br /> Total Recoverle C32 ? mg/1 Grab 5520F135 103 EPA 418.1 Quarterly <br /> Petroleum Hydrocarbons <br /> (Cl. - CY <br /> 1. A crude oil standard chromatograph shall be used for constituent identification. <br /> 2. Purge and nap method used for sample preparation, flame ionization used for detection. <br /> 3. Extraction method used for sample preparation, flame ionization used for detectiou. <br /> - 4. Extraction method used for sample preparation, spcctrophotometric infrared used for decoction. <br />