SITE INFORMATION AND CORRESPONDENCE_2001-2005

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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION Ns,,IRop��{,ENT IJIE I 1 fI rte MONITORING AND REPORTING PROGRAM NO. �21 C2; 3' CALIFORNIA WATER CODE SECTION 1 FOR LINCOLN CENTER ENVIRONMENTAL REMEDIATION TRUST LINCOLN CENTER SAN JOAQUIN COUNTY This monitoring and reporting program (MRP) incorporates requirements for monitoring of the progress of the groundwater remediation pilot study. This MRP is issued by the Executive Officer of the California Regional Water Quality Control Board, Central Valley Region (Regional Board)pursuant to California Water Code Section 13267. The Lincoln Center Environmental Remediation Trust (hereafter referred to as Discharger) is required to comply with this MRP. The Discharger shall not implement any changes to this MRP unless and until a revised MRP is issued by the Executive Officer. All samples shall be representative of the volume and the nature of the discharge and matrix of the sampled medium. The time, date, and location of each grab sample shall be recorded on the sample chain of custody form. PILOT STUDY GROUNDWATER MONITORING A. LABORATORY ANALYSES 1. The Discharger will install five monitoring well clusters for the proposed pilot test. The locations of the monitoring well clusters and their designations are shown on Attachment 1. 2. Prior to the pilot test, the Discharger will perform a de-ionized water extraction test (DI WET) on the granular zero valent iron (GZVI) powder and perform an analysis on the extracted solute using appropriate methods to determine the soluble levels of the trace elements contained in the GZVI other than iron. Attachment 2,provides a list of the trace elements found in the GZVI powder to be used in the pilot test and, where applicable, the water quality objective for those elements. If the DI WET test and solute analysis results contain levels of soluble trace elements in excess of the water quality objectives, then discharger will perform laboratory analysis of groundwater samples collected from the nearby downgradient monitoring well, MW-006A, for those elements in addition to the laboratory analysis required in Table 1,below. 3. Monitoring of the pilot study will consist of laboratory analysis of groundwater samples collected from PT-1/2, PT-3/4, PT-5/6, PT-7/8, PT-9/10, MW-006A, and MW-100A. Table 1, below, shows the constituents for which the samples are to be analyzed, the EPA analytical methods to be used and the sampling frequency for pilot test. These analyses shall be completed by a California State certified laboratory and shall follow standard EPA protocol.