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2![FACT SHEET FOR THE GENERAL PERMIT TO DISCHARGE WASTEWATER FROM FILTER BACKWASH OPERATION AT POTABLE WATER TREATMENT PLANTS TO WATERS OF THE UNITED STATES UNDER THE OKLAHOMA POLLUTANT DISCHARGE ELIMINATION SYSTEM (OPDES) FACT SHEET FOR THE GENERAL PERMIT TO DISCHARGE WASTEWATER FROM FILTER BACKWASH OPERATION AT POTABLE WATER TREATMENT PLANTS TO WATERS OF THE UNITED STATES UNDER THE OKLAHOMA POLLUTANT DISCHARGE ELIMINATION SYSTEM (OPDES)](https://www.pdfsearch.io/img/dacd97c8e2aa831653abba619e70e4d6.jpg) | Add to Reading ListSource URL: www.deq.state.ok.us- Date: 2013-01-14 16:49:06
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8![© IWA PublishingWater Practice & Technology Vol 6 No 1 doi:WPTHow to Measure Specific Deposit Washout and Backwash Efficiency of © IWA PublishingWater Practice & Technology Vol 6 No 1 doi:WPTHow to Measure Specific Deposit Washout and Backwash Efficiency of](https://www.pdfsearch.io/img/effb3ac6ccf6a8010e86fe018ebb0e77.jpg) | Add to Reading ListSource URL: www.iwaponline.comLanguage: English - Date: 2011-04-15 06:19:11
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