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State-Specific Water Quality Standards Effective under the Clean Water Act (CWA)
EPA has compiled state, territorial, and authorized tribal water quality standards that EPA has approved or are otherwise in effect for Clean Water Act purposes. This compilation is continuously updated as EPA approves new or revised WQS.Please note the water quality standards may contain additional provisions outside the scope of the Clean Water Act, its implementing federal regulations, or EPA's authority. In some cases, these additional provisions have been included as supplementary information. EPA is posting the water quality standards as a convenience to users and has made a reasonable effort to assure their accuracy. Additionally, EPA has made a reasonable effort to identify parts of the standards that are approved, disapproved, or are otherwise not in effect for Clean Water Act purposes.
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Assessed Clean Water Act 305(b) Water Designated Use Attainments
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Identifies the state and EPA water designated use information and the use attainment status for assessed waters under the Clean Water Act 305(b) program.
Assessed Clean Water Act 305(b) Waters
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Identifies assessed waters under the Clean Water Act 305(b) program.
MO 2015 CWIS Water Quality Standards
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This feature class contains watersheds associated with Missouri's use designations for streams listed in Table F of the Water Quality Standards (WQS) rule published in the Missouri Code of State Regulations (CSR), 10 CSR 20-7.031, on January 29, 2014 and approved by the United States Environmental Protection Agency (EPA), on October 22, 2014.
Water Quality attainment Information from Clean Water Act Statewide Statistical Surveys
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Designated uses assessed by statewide statistical surveys and their state and national attainment categories. Statewide statistical surveys are water quality assessments designed to yield unbiased estimates of the condition of a whole resource (such as all lakes or streams in a state) based on monitoring a representative sample of those waters.
Water Quality attainment Information from Clean Water Act Statewide Statistical Surveys
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Designated uses assessed by statewide statistical surveys and their state and national attainment categories. Statewide statistical surveys are water quality assessments designed to yield unbiased estimates of the condition of a whole resource (such as all lakes or streams in a state) based on monitoring a representative sample of those waters.
Assessed Clean Water Act 305(b) Water Sources of Impairment
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Identifies the sources of impairment for assessed waters under the Clean Water Act 305(b) program. This view can be used for viewing the details at the assessment unit level.
Surface Water Quality Assessments
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This is the 2014 Integrated Report. EPA approved this submission in accordance with Sections 303(d), 305(b), and 314(l) of the Clean Water Act, on October 16, 2015. The Integrated Report (IR) combines two water quality reports required under sections 305(b) and 303(d) of the federal Clean Water Act. Section 305(b) requires states, territories and authorized tribes to perform annual water quality assessments to determine the status of jurisdictional waters. Section 303(d) requires states, territories and authorized tribes to identify waters assessed as not meeting water quality standards(see Code of Maryland Regulations 26.08.02). Waters that do not meet standards may require a Total Maximum Daily Load to determine the maximum amount of an impairing substance or pollutant that a particular water body can assimilate and still meet water quality criteria. Historically, the 303(d) List and the 305(b) report were submitted to the Environmental Protection Agency (EPA) as separate documents but more recent guidance has called for combining these two reports into a single biennial publication. More information is available at http://www.mde.state.md.us/PROGRAMS/WATER/TMDL/INTEGRATED303DREPORTS/Pages/Programs/WaterPrograms/TMDL/Maryland%20303%20dlist/index.aspx A searchable version of this data is available at http://www.mde.state.md.us/programs/Water/TMDL/Integrated303dReports/Pages/303d.aspx
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