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INFORMATION SHEET 8 WASTE DISCHARGE REQUIREMENTS ORDER NO.R5-2004-XXXX DEFENSE DISTRIBUTION DEPOT SAN JOAQUIN SHARPE WASTEWATER TREATMENT FACILITY SAN JOAQUIN COUNTY Monitoring Requirements Section 13267 of the CWC authorizes the Board to require monitoring and technical reports as necessary to investigate the impact of a waste discharge on waters of the state. In recent years there has been increased emphasis on obtaining all necessary information, assuring the information is timely as well as representative and accurate, and thereby improving accountability of any discharger for meeting the conditions of discharge. Section 13268 of the CWC authorizes assessment civil administrative liability where appropriate. The proposed Order includes monitoring requirements for influent, effluent, evaporation/percolation pond, groundwater, and sludge. The Title 27 zero leakage protection strategy relies heavily on extensive groundwater monitoring to increase a discharger's awareness of, and accountability for, compliance with the prescriptive and performance standards. With a high volume, concentrated, uncontained discharge to land, monitoring takes on even greater importance. Therefore, the proposed Order includes monitoring of groundwater. Title 27 regulations pertaining to groundwater monitoring and the detection and characterization of waste constituents in groundwater have been in effect and successfully implemented for many years. No regulation currently specifies similar criteria more suitable for a situation where extensive infiltration into groundwater occurs. However,where, as here, such infiltration occurs, it is appropriate that the Title 27 groundwater monitoring procedures be extended and applied on a case-by-case basis under Water Code section 13267. The Discharger must monitor groundwater for constituents present in the discharge and capable of reaching groundwater and violating groundwater limitations if its treatment and control, and any dependency of the process on sustained environmental attenuation, proves inadequate. Reopener The conditions of discharge in the proposed Order were developed based on currently available technical information and applicable water quality laws,regulations, policies, and plans, and are intended to assure conformance with them. However, information is presently insufficient to develop final effluent and groundwater limitations for constituents of concern, so the proposed Order contains some interim limitations. Additional information must be developed and documented by the Discharger as required by schedules set forth in the proposed Order. As this additional information is obtained,