Laws & Regulations
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Water Quality Standards Regulations: Eastern Band of Cherokee Indians
Water Quality Standards Regulations: Eastern Band of Cherokee Indians
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Water Quality Standards Regulations: Fond du Lac Band of the Minnesota Chippewa
Information related to Water Quality Standards for Fond du Lac Band of the Minnesota Chippewa Tribe.
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Water Quality Standards Regulations: Karuk Tribe
Water Quality Standards Regulations: Karuk Tribe
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Water Quality Standards Regulations: Kletsel Dehe Wintun Nation
Information related to Water Quality Standards for Kletsel Dehe Wintun Nation.
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Water Quality Standards Regulations: Keweenaw Bay Indian Community
Information about water quality standards for the Keweenaw Bay Indian Community.
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Water Quality Standards Regulations: Guam
Information related to Water Quality Standards for Guam.
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Water Quality Standards Regulations: Hawaii
Information related to Water Quality Standards for Hawaii.
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Water Quality Standards Regulations: Gila River Indian Community
Water quality regulations and related information for the Gila River Indian Community.
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Water Quality Standards Regulations: Idaho
Information related to Water Quality Standards for Idaho.
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Water Quality Standards Regulations: Lummi Nation
Information related to Water Quality Standards for Lummi Nation.
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Water Quality Standards Regulations: Kalispel Tribe of Indians
Information related to Water Quality Standards for Kalispel Indian Community of the Kalispel Reservation.
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Water Quality Standards Regulations: Hualapai Tribe
Information related to Water Quality Standards for Hualapai Tribe.
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Water Quality Standards Regulations: Hoopa Valley Tribe
Information related to Water Quality Standards for Hoopa Valley Tribe.
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Water Quality Standards Regulations: Lac du Flambeau Band of Lake Superior Chippewa
Information related to Water Quality Standards for Lac du Flambeau Band of the Lake Superior Chippewa Tribe.
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Water Quality Standards Regulations: Bad River Band of the Lake Superior Chippewa Tribe
EPA-approved water quality standards for the Bad River Band of the Lake Superior Chippewa Tribe.
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Water Quality Standards Regulations: Hopi Tribe
Information related to Water Quality Standards for Hopi Tribe.
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Water Quality Standards Regulations: Confederated Tribes of the Warm Springs Indian Reservation of Oregon
Information related to Water Quality Standards for Confederated Tribes of the Warm Springs Indian Reservation of Oregon.
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Water Quality Standards Regulations: Illinois
Information on Illinois WQS documents
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Interim Recommendations for Addressing Groundwater Contaminated with PFOA and PFOS
This guidance provides interim recommendations for addressing groundwater contaminated with PFOA and/or PFOS at sites being evaluated and addressed under federal cleanup programs, including Superfund/CERCLA and corrective actions under RCRA.
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Findings of Failure to Submit a Complete State Implementation Plan (SIP) for Section 110(a) Pertaining to the 2010 Nitrogen Dioxide National Ambient Air Quality Standards (NAAQS) Fact Sheet
This page contains the 2011 fact sheet for the Findings of Failure to Submit a Complete State Implementation Plan (SIP) for the 2010 NO2 Standard for seven states and the District of Columbia.