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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION MONITORING AND REPORTING PROGRAM NO. R5-2010-0016 CONSTRUCTION, OPERATION, AND DETECTION MONITORING SAN JOAQUIN COUNTY DEPARTMENT OF PUBLIC WORKS NORTH COUNTY LANDFILL CLASS III LANDFILL SAN JOAQUIN COUNTY This monitoring and reporting program (MRP) is issued pursuant to California Water Code section 13267 and incorporates requirements for landfill monitoring and maintenance contained in California Code Regulations title 27, division 2 (Title 27), Waste Discharge Requirements (WDRs) Order No. R5-2010-0016, and the April 2000 Standard Provisions and Reporting Requirements (SPRR). Compliance with this MRP is ordered by the WDRs. The Discharger shall not implement any changes to this MRP unless a revised MRP is issued by the Executive Officer. Pursuant to Sections 20415(b)(1)(B) and 20420, the Discharger shall maintain water quality monitoring systems for background and detection monitoring, as set forth below.1 <br />MRP SUMMARY TABLE <br />Section Requirement Frequency A Standard Observations Weekly <br />B Facility Monitoring: 1. Maintenance Inspections Monthly 2. After Significant Storm Events Within 7 Days After Event 3. Site Winterization Annually C Water Quality Protection Standard Update as necessary <br />D Leachate Monitoring 1. LCRS Sumps Monthly/Semiannually 2. Secondary Sumps Quarterly/Semiannually E Unsaturated Zone Monitoring 1. Soil Gas Quarterly 2. Pore Liquid Semiannually F Groundwater Monitoring 1. Elevation Quarterly 2. Background Monitoring Semiannually 3. Detection Monitoring Semiannually 4. Constituents of Concern (COCs) Every 5 years G Surface Water Monitoring: 1. Storm Water Semiannually 1. Regulatory sections quoted in the text and titles of this MRP refer to Title 27 unless otherwise noted.