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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION MONITORING AND REPORTING PROGRAM No. R5-2009- CALIFORNIA WAT ECTION 13267 F H 8 H MARIA 15135 EIGHTLM-10E R I AD STOCKTON, SAN JOA COUNTY H & H Marina (Discharger) at 15135 Eight Mile Road in Stockton (site) is near the Little Connection Slough and is bounded to the north by agricultural fields, Eight Mile Road to the south, and a levee to the west a site has two aboveground storage tanks, associated above- and below-grou d',pji ing, and 14 monitoring wells Groundwater is first encountered at about 0!,f; et below ground surface and is polluted with petroleum hydrocarbon constituents. is pollution impaired the beneficial use of this water resource. The Discharger is cleaning up groundwater using an extraction and treatment system. This Monitoring and Reporting Program is ed pursuant to Section 13267 of the California Water Code and is neves ary elin ate groundwater pollutant plumes and determine whether remediation efforts e ive. Existing data and information about the site show the presence of various chemicals, including total petroleum hydrocarbons (TPH) as gasoline, benzene, toluene, ethylbenzene, xylenes, methyl tertiary butyl ether (MTBE), tertiary butyl alc of T A), and tertiary amyl methyl ether (TAME) emanating from the property and he trol of the Discharger. The Discharger shall not implement any chang td MRP unless and until a revised MRP is issued by the Executive Officer. Th "`M' P replaces the requirements listed in MRP No. R5-2004-0828, which was issued June 2004 and is hereby rescinded. Prior to construction of any new groundwater monitoring or extraction wells, and prior to destruction of any groundwater monitoring or raction wells, the. Discharger shall submit plans and specifications to the Boa fik iew and approval. Once installed, all new wells shall be added to the monito ' ;j;p;'.°'' am and shall be sampled and analyzed according to the schedule below. GROUNDWATER ITORING As shown on Figure 1, there are 13 monitoring wells and one extraction well. The groundwater monitoring program for the 13 monitoring wells, one extraction well, four surface water sampling locations identified as DDN, DDS, IDCE, and IDCW, and any wells installed subsequent to the issuance of this MRP, shall follow the schedule below. Monitoring wells with free phase petroleum product or visible sheen shall be monitored, at a minimum, for product thickness and depth to water. Sample collection and analysis shall follow standard EPA protocol.