SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION MONITORING AND REPORTING PROGRAM NO. 5-01-873 FOR TRIPLE E PRODUCE CORPORATION TRACY, SAN JOAQUIN COUNTY Triple E Produce Corporation(Triple E) is a fresh tomato packing company at 8690 West Linne Road in Tracy(site). Wash water from the processing plant was discharged to an infiltration pond which resulted in trihalomethane (THM) contamination. In 1996, Triple E began extracting THM contaminated groundwater from two extraction wells and was discharging it to an aeration pond. The extraction of groundwater ceased in May 2000. 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. This MRP replaces the requirements listed in MRP No. 96-118, which was issued on 3 May 1996. Prior to construction of any new 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. GROUNDWATER MONITORING As shown on Figure 1, there are seven monitoring wells and two extraction wells. The groundwater monitoring program for the nine wells and any wells installed subsequent to the issuance of this MRP, shall follow the schedule below. The volume of extracted groundwater also shall be provided in quarterly monitoring reports. Sample collection and analysis shall follow standard EPA protocol. EPA Analytical Max.Detection Sampling Constituents Method Limit' Frequency Depth to Groundwater --- --- Quarterly Total Trihalomethanes 502.2 0.5 µg/1 Quarterly Total Dissolved Solids 160.1 10 mg/1 Quarterly Standard Minerals Various Various Annually, 1 For nondetectable results. 2 Standard Minerals will include ammonia,bicarbonate,boron,calcium,carbonate,chloride,electrical conductivity,iron, magnesium,nitrates,pH,phosphorous,potassium, silica,sodium,sulfate,total dissolved solids,and total hardness. 3 Collected during the second quarter. REPORTING When reporting data, the Discharger shall arrange the information in tabular form so that the date,the constituents, and the concentrations are readily discernible. The data shall be summarized in such a manner as to illustrate clearly the compliance with this Order. In addition, the Discharger shall notify the Board within 48 hours of any unscheduled shutdown of any soil vapor and/or groundwater extraction system.