SITE INFORMATION AND CORRESPONDENCE_1993-2003

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WASTE DISCHARGE REQUIREMENTS ORDER NO. RS-2002-0213 22 U.S. DEPARTMENT OF DEFENSE DEFENSE LOGISTICS AGENCY DEFENSE DISTRIBUTION DEPOT SAN JOAQUIN SHARPE GROUNDWATER REMEDIATION SYSTEM SAN JOAQUIN COUNTY of saturation in the main water mass, and the 951h percentile concentration shall not fall below 75 percent of saturation. E. Provisions: 1. The Discharger shall comply with Monitoring and Reporting Program No. R5-2002-0213, which is part of this Order, and any revisions thereto as ordered by the Executive Officer. 2. The discharge may contain constituents that have reasonable potential to cause or contribute to an exceedance of NTR, CTR water quality criteria, or other constituents that could exceed narrative or numeric water quality objectives in the Basin Plan. The specific constituents of concern are listed in the Requirement to Submit Monitoring Data letter issued by the Executive Officer on 10 September 2001. A copy of that letter, including it's Attachments I though IV, are incorporated into this Order as Attachment D. The Discharger shall comply with the following time schedule in conducting this effluent and receiving water study and submitting reports: 'bask Compliance Date Submit Study Report 1 March 2003 Submit Interim Status Report 1 November 2003 Submit Study Report for Dioxins 1 November 2004 This Provision is intended to be consistent with the requirements of the 10 September 2001 technical report request described in Finding 14. The Discharger shall submit to the Regional Board on or before each compliance due date, the specified document or a written report detailing compliance or noncompliance with the specific date and task. If noncompliance is reported, the Discharger shall state the reasons for noncompliance and include an estimate of the date when the Discharger will be in compliance. The Discharger shall notify the Regional Board by letter when it returns to compliance with the time schedule. If after review of the study results it is determined that the discharge has reasonable potential to cause or contribute to an exceedance of a water quality objective this Order will be reopened and effluent limitations added for the subject constituents. 3. Interim Mercury Mass Limitation Report: The Discharger shall submit within eighteen (18) months of adoption of this Order an Interim Mercury Mass Limitation Report which summarizes flow and effluent mercury data collected pursuant to MRP No. R5-2002-XXX. In proposing an interim mass limitation in this Report, the Discharger shall consider the results of`clean technique' data collection efforts and the weighted flow of each GWTP. As necessary, this Order may be reopened and an interim mass limit included for mercury.