SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION REVISED MONITORING AND REPORTING PROGRAM NO. 97-812 FOR FORMER CAL FARM SUPPLY, STOCK-TON MARTHA BOWMAN, BANKRUPTCY TRUSTEE SAN JOAQUIN COUNTY The former Cal Farm Supply facility is at 1922 and 2040 West Washington Street, Stockton. The business included the storage, distribution, and packaging of fertilizers and pesticides. The company filed for bankruptcy in 1987, and the site investigation and cleanup is being performed under direction of the bankruptcy trustee. Groundwater is contaminated with nitrate, ammonia, various pesticides, and petroleum products. In the two years since the Monitoring and Reporting Program (MRP) was initiated, constituents have not been detected in many of the wells and it is appropriate to reduce the monitoring scope and frequency. This MRP is revised accordingly. This Monitoring and Reporting Program (MRP) is issued pursuant to Section 13267 of the California Water Code and is designed to delineate groundwater contaminant plumes and determine whether remediation efforts are effective. The Discharger shall not implement any changes to this MRP unless and until a revised MRP is issued by the Executive Officer. Prior to construction of any new groundwater monitoring or extraction wells, the Discharger shall submit plans andspecifications 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. GROUNDWATER MONITORING There are eight monitoring wells as shown on Figure 1: MW-1,MW-2, MW-3, MW-4, MW-5,MW-7, MW-8, and MW-9. The groundwater-monitoring program for the eight monitoring wells and any wells installed subsequent to the issuance of this MRP, shall follow the schedule below. Sample collection and analysis shall follow standard EPA protocol.