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Pi • CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION MONITORING AND REPORTING PROGRAM NO. R5-2003-XXXX CALIFORNIA WATER CODE SECTION 13267 FOR JOHN TAYLOR FERTILIZERS CO., INC. WILBUR-ELLIS COMPANY STOCKTON FACILITY SAN JOAQUIN COUNTY John Taylor Fertilizers Company operated a retail fertilizer distribution facility at its 1819 South Argonaut Street site in Stockton from 1955 until early 1999 when John Taylor Fertilizers Company became a wholly-owned subsidiary of Wilbur -Ellis Company (collectively referred to as Discharger). Groundwater monitoring shows that nitrate, fumigants, and chlorinated herbicides exceed water quality goals at this site. Groundwater is about 15 feet below ground surface. This pollution impaired the beneficial use of this water resource. The Discharger. removed three fuel tanks and petroleum contaminated soil in the early 1990s. This Monitoring and Reporting Program (MRP) is issued pursuant to Section 13267 of the California Water Code and is necessary to delineate groundwater pollutant plumes and determine whether remediation efforts are effective. Existing data and information about the site show the presence of various chemicals, including nitrate, bromacil, dinoseb, 1,2-dichloropropane, and 1,2,3-trichloropropane, emanating from the property resulting from the Discharger's past operation. The Discharger shall not implement any changes to this MRP unless and until a revised MRP is issued by the Executive Officer. This MRP replaces the requirements listed in MRP No.5-01-818, which was issued on 18 April 2001. Prior to construction of any new groundwater monitoring or extraction wells, and prior to abandonment of any groundwater monitoring or extraction wells, the Discharger shall submit plans and specifications to the Board for review and approval. Once installed, all new monitoring wells (exclusive of those installed solely for remediation) shall be added to the monitoring program and shall be sampled and analyzed according to the schedule below. GROUNDWATER MONITORING As shown on Figure 1, there are five monitoring wells: MW -1, MW -2, MW -3, MW -4, and MW -5. The groundwater monitoring program for the five monitoring Wells and any wells installed for routine groundwater monitoring subsequent to the issuance of this MRP, shall follow the schedule below. Sample collection and analysis shall follow standard EPA protocol.