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WASTE DISCHARGE REQUIREMENTS 2- CARPENTER COMPANY TRUCK WASH WATER DISPOSAL SITE LATHROP, SAN JOAQUIN COUNTY General Permit. All of the storm water is retain on-site: thus, not requiring coverage under the General Permit. 4. Carpenter Company is in Section N '/ 34, 35 , T1 S , R6E, MDB&M. with surface water drainage to the San Joaquin River, as shown in Attachment A, which is attached hereto and part of the Order by reference. �. The Board adopted a Water Quality Control Plan, Third Edition, for the Sacramento River Basin and San Joaquin River Basin (hereafter Basin Plan), which contains water quality objectives for all waters of the Basin. These requirements implement the Basin Plan. 6. The beneficial uses of the San Joaquin River are municipal, industrial, and agricultural supply; recreation; aesthetic enjoyment; navigation; ground water recharge; fresh water replenishment; and preservation and enhancement of fish, wildlife, and other aquatic resources. 7. The beneficial uses of underlying ground water are domestic, industrial, and agricultural supply. S. The Regional Board has certified a Negative Declaration, in accordance with the California Environmental Quality Act (CEQA), (Public Resources Code Section 21000, et seq.) and the State CEQA Guidelines. An initial environmental study indicated a potentially significant impact to ground water quality unless mitigation is incorporated. Portions of the storm water tend to stay and settle in the inlet area of the pond after a storm event. Approximately all of the wash water will likely end up in the inlet area during the dry months. The following is a mitigation measure to protect the ground water quality. a. The eluent limit for Oil and Grease when wastewater is ponded near the inlet will prevent the buildup of oil and grease in the pond soil, preventing possible ground water pollution. 9. This discharge is exempt from the requirements of Title 23, CCR, Section 2510, et seq. (hereafter Chapter 15). The exemption, pursuant to Section 2511(b), is based on the following: a. The Board is issuing waste discharge requirements, and b. The discharge complies with the Basin Plan, and C. The wastewater does not need to be managed according to 22 CCR, Division 4.5, Chapter 11, as a hazardous waste_ 10. The Board has notified the Discharger and interested agencies and persons of its intent to prescribe waste discharge requirements for this discharge and has provided them with an opportunity for a public hearing and an opportunity to submit their written views and recommendations. !