Transcription of CHAPTER 6. Water Quality-Based Effluent Limitations
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September 2010 NPDES Permit Writers Manual CHAPTER 6: Water Quality-Based Effluent Limitations 6-1 CHAPTER 6. Water Quality-Based Effluent Limitations When drafting a National Pollutant Discharge Elimination System (NPDES) permit, a permit writer must consider the impact of the proposed discharge on the quality of the receiving Water . Water quality goals for a waterbody are defined by state Water quality standards. By analyzing the effect of a discharge on the receiving Water , a permit writer could find that technology- based Effluent Limitations (TBELs) alone will not achieve the applicable Water quality standards. In such cases, the Clean Water Act (CWA) and its implementing regulations require development of Water Quality-Based Effluent Limitations (WQBELs).
September 2010 NPDES Permit Writers’ Manual 6-4 Chapter 6: Water Quality-Based Effluent Limitations 6.1.1.2 Water Quality Criteria (§ 131.11) The second part of a state’s water quality standards is the set of water quality criteria sufficient to support
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Water Technical and Operational Guidance, Effluent Limitations, Case Study, Water, Water Quality, World Health Organization, Municipal Effluent Disposal Standards, ENVIRONME NT Water Quality Control Commission, Economic Analysis for the National, Construction, Fact Sheet NPDES Permit, Based, Abstract