Laws & Regulations
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Massachusetts Draft Individual NPDES Permits
Draft Individual NPDES Permits for Massachusetts
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Connecticut Draft Individual NPDES Permits
Searchable table listing of draft NPDES Permits for Connecticut
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Disinfection Byproduct Rule Updates Presentation
Disinfection Byproduct Rule Updates Presentation given by Seth Tourney at the WWQ/PCA Conference held in Casper, Wyoming in October of 2017.
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Maryland SIP, Ozone Attainment Plan for the Metropolitan Washington, D.C. Ozone Nonattainment Area Contingency Measure Plan
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Ozone Attainment Plan for the Metropolitan Washington, D.C. Ozone Nonattainment Area VMT Offset SIP Revision
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Ozone Attainment Plan for the Metropolitan Baltimore Ozone Nonattainment Area
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Post - 1996 Rate of Progress Plan & contingency measures Philadelphia-Wilmingtom-Trenton Ozone Nonattainment Area (Cecil County) amendment 2
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Post - 1996 Rate of Progress Plan & contingency measures Philadelphia-Wilmingtom-Trenton Ozone Nonattainment Area (Cecil County) amendment 1
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Carbon Monoxide Maintenance Plan Montgomery and Prince George's County
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Ozone Attainment Plan for the Metropolitan Washington, D.C. Ozone Nonattainment Area 1990 Base Year Inventory
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Source Specific Requirement NE Maryland Waste Disposal Authority & Wheelabrator-Frye, Balt. & Bedco
Maryland - Source Specific Requirement
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Maryland SIP, TM#90-01—“Continuous Emission Monitoring Policies and Procedures”—October 1990
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP,Ozone Attainment Plan for the Metropolitan Baltimore, Ozone Nonattainment Area Mobile Budgets
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP,Ozone Attainment Plan for the Metropolitan Baltimore, Ozone Nonattainment Area
Maryland - EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Maryland SIP
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Maryland SIP, Source Specific Requirement Kaydon Ring & Seal
Maryland - Source Specific Requirement
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West Virginia SIP SO2 Attainment Plan for the New Manchester-Grant Magisterial District SO2 Nonattainment Area
West Virginia SIP - EPA Approved non -regulatory and quasi-regulatory material
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EPA Approved Regulations in the Maryland SIP
EPA Approved Regulations in the Maryland SIP
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Rapanos v. United States & Carabell v. United States
Documents associated with guidance for implementing the definition of "waters of the United States" under the Clean Water Act following the Rapanos v. United States, and Carabell v. United States Supreme Court decision.
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The Navigable Waters Protection Rule - Supporting Documents
Economic Analysis and Resource Programmatic Assessment document links in support of the 2020 revised definition of "waters of the United States"