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0 CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION MONITORING AND REPORTING PROGRAM NO. R5-2003-0838 FOR KEARNEY-NATIONAL, INC. AND ALPINE BUILDERS, INC. FORMER KEARNEY-KPF FACILITY SAN JOAQUIN COUNTY Kearney-National,Inc. (hereafter Discharger) operated the former manufacturing facility at 1624 East Alpine Avenue in Stockton(site). The property is owned by Alpine Builders, Inc. Waste disposal from the manufacturing processes occurred in the central portion of the site in surface impoundments, which caused soil and groundwater pollution with total dissolved solids and volatile organic compounds (VOCs), including 1,4-dioxane. This pollution impaired the beneficial use of groundwater. Groundwater is first encountered at about 40 feet below ground surface. There are three water bearing zones monitored at the site. On 7 December 2001, Waste Discharge Requirements Order No. 5-01-269 was issued to the Discharger for a groundwater treatment and disposal system. Groundwater is extracted from various wells and treated by hydrogen peroxide injection, ultraviolet light, and air stripping before discharge to the subsurface or a retention basin. The final treatment step of granular activated carbon was removed from the treatment train but remains in place and ready for operation in the event that site conditions change. Monitoring of that system is required by Monitoring and Reporting Program (MRP)No. 5-01-269,Revision 2. This 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 shows the presence of various chemicals, including chloroform, 1,1-dichloroethanc, 1,2-dichloroethane, 1,1-dichloroethene, 1,2-dichloroethene, methylene chloride, tetrachloroethene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, trichloroethene, and 1,4-dioxane, resulting from the Discharger's past operations. 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. R5-2002-0829, which was issued on 16 September 2002. 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 wells shall be added to the monitoring program and shall be sampled and analyzed according to the schedule below.