FIELD DOCUMENTS AND WORK PLANS 1988

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WASTE DISCHARGE REQUIREMENTS -3- THE MARLEY COOLING TOWER COMPANY STOCKTON, SAN JOAQUIN COUNTY 13. From 1 October to 1 April , all flow in the Calaveras River is diverted at Bellota to Upper Mormon Slough , tributary to the Stockton Diverting Canal , tributary to the Calaveras River (see Attachment C) . . No flows are maintained in the Calaveras River channel between the fork with Upper Mormon Slough and the confluence with the Stockton Diverting Canal . 14. From 1 April to 1 October, flows are maintained in both the Calaveras River, as well as Upper Mormon Slough and the Stockton Diverting Canal . Numerous check dams to retain flows for irrigation supply are placed along Upper Mormon Slough, the Stockton Diverting Canal , and the Calaveras River from Upper Mormon Slough to the Stockton Diverting Canal . 15. The beneficial uses of the Calaveras River, Upper Mormon Slough, and the Stockton Diverting Canal are municipal , industrial , and agricultural supply; recreation; esthetic enjoyment; navigation; ground water recharge; fresh water replenishment; and preservation and enhancement of fish, wildlife and other aquatic resources. 16. The beneficial uses of local ground water include domestic, municipal , industrial , and agricultural supply. 17. The Board, on 25 July 1975, adopted a Water Quality Control Plan for the Sacramento-San Joaquin Delta Basin (5B) , which contains water quality objectives for all waters of the Basin. These requirements are consistent with the Plan. 18. Effluent limitation, and toxic and pretreatment effluent standards estab- lished pursuant to Sections 301, 302, 304, and 307 of the Clean Water Act and amendments thereto are applicable to the discharge. 19. The action to adopt an NPDES permit is exempt from the provisions of the California Environmental Quality Act (Public Resources Code Section 21000, et seq.) , in accordance with Section 13389 of the California Water Code. 20. 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 oppor- tunity to submit their written views and recommendations. 21. The Board, in a public meeting, heard and considered all comments pertaining to the discharge. 22. This Order shall serve as an NPDES permit pursuant to Section 402 of the Clean Water Act, or amendments thereto, and shall take effect ten days from the date of hearing, provided EPA has no objections.