SITE INFORMATION AND CORRESPONDENCE_1993-2003

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INFORMATION SHEET • G WASTE DISCHARGE REQUIRMENTS ORDER NO. R5-2002-0213 U.S. DEPARTMENT OF DEFENSE DEFENSE LOGISTICS AGENCY DEFENSE DISTRIBUTION DEPOT SAN JOAQUIN SHARPE GROUNDWATER REMEDIATION SYSTEM SAN JOAQUIN COUNTY aquatic organism movement or migration. However, the SSJID Canal was not constructed as a migration pathway or spawning area for cold water species. As noted previously, Section 101(a)(2) of the CWA requires that water quality that for the protection and propagation of fish, shellfish, and wildlife, and for recreation in and on the water be achieved, whenever attainable. The interim national goal for all waters is to be `fishable/swinunable'. This Order considers aquatic habitat as an existing beneficial use of the SSJID Canal. The aquatic habitat designation necessitates that the in-stream dissolved oxygen concentration be maintained at, or above, 5.0 mg/L (ppm). This approach recognizes that, if the naturally occurring in-stream dissolved oxygen concentration is below 5.0 mg/L (ppm), the Discharger is not required to improve the naturally occurring level. Previous Order No. 95-258 identified French Camp Slough as the point of compliance for receiving water limitations (Receiving Water Limitation D.). However, the existing beneficial uses of the SSJID Canal, as described above, must also be protected and maintained. The SSJID Canal is at times in continuity with French Camp Slough, which flows to the Delta. This Order considers limitations necessary for the protection of existing beneficial uses in the SSJID Canal. French Camp Slough In reviewing what existing beneficial uses that may apply to French Camp Slough, the Regional Board has considered the following facts: a. Domestic, Municipal, and Agricultural Supply The Regional Board is required to apply the beneficial uses of municipal and domestic supply to French Camp Slough based on SWRCB Resolution No. 88-63 which was incorporated into the Basin Plan pursuant to Regional Board Resolution 89-056. In addition, the SWRCB has issued water rights to existing water users along French Camp Slough downstream of the discharge for domestic and irrigation uses. As noted above, municipal and domestic supply are identified as existing beneficial uses of the Delta. b. Water Contact and Non-Contact Recreation and Esthetic Enjoyment The Regional Board finds that the discharge flows through residential areas, and there is ready public access to French Camp Slough. Exclusion of the public is unrealistic and contact recreational activities currently exist along French Camp Slough, these uses are likely to increase as the population in the area grows.