Collections and Lists
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Soak Up the Rain
Soak Up the Rain promotes green infrastructure practices such as rain barrels, rain gardens, permeable pavements and green roofs to reduce stormwater runoff and prevent water pollution while bringing about a broad range of community benefits.
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Tribal Minor NSR Facility Closure Form in EPA's South Central Region
This form should be used to notify the EPA Region 6 Federal Minor NSR Permit Program that an existing True Minor NSR or Synthetic Minor NSR Facility has been closed and decommissioned.
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EPA Science Matters Newsletter
Read Science Matters, an EPA newsletter that publishes articles on the research the Agency is conducting. The newsletter also includes profiles on EPA scientists.
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The Importance of Biocriteria in North Carolina's Basinwide Management Strategy
The Importance of Biocriteria in North Carolina's Basinwide Management Strategy
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Water Quality Criteria
EPA develops water quality criteria based on the latest scientific knowledge to protect human health and aquatic life. This information serves as guidance to states and tribes in adopting water quality standards.
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Recent Papers, Upcoming Meetings and Webinars
Information related to Recent Papers and Upcoming Meetings
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Underground Injection Control in Region 10 (AK, ID, OR, and WA)
Region specific UIC contact information is provided.
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Clean Air Act Permitting in Nevada
Information on Clean Air Act permitting in Nevada in Nevada and EPA's oversight. Clean Air Act permitting in Nevada is the shared responsibility of one state and two local agencies, along with EPA Region 9.
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Clean Air Act Permitting in Arizona
CAA permitting in Arizona is the shared responsibility of one state, three county agencies, and EPA. EPA Region 9 is responsible for processing permits on most tribal lands. Navajo Nation and Gila River Indian Community also issue some types of permits.
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Small and Rural Wastewater Systems
Many tools, training, technical assistance, and funding resources are available to develop and maintain reliable and affordable wastewater treatment systems in small and rural communities including in tribal and U.S.-Mexico Border area.
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Private Drinking Water Wells
Provides information on private drinking water wells, types of well, well construction. How to prevent health risks associated with private wells is also discussed.
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Source Water Protection
Provide information on: what source water protection is; priority threats and sources of contamination; and available resources and tools (programmatic, financial, technical, potential partners.)
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Criminal Provisions
Links to the criminal provisions under the Environmental Statutes and the United States Code as enforced by EPA
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Clean Air Act Permitting in Hawai'i and Pacific Islands
Information on EPA Pacific Southwest (Region 9) oversight of Clean Air Act (CAA) permitting in Hawai'i and the Pacific Islands.
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Air Permit Delegation and PSD SIP Approval Status in EPA's Pacific Southwest (Region 9)
Federal air regulations that have been delegated to state or local air pollution control agencies in EPA's Pacific Southwest, Region 9.
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Six-Year Review of Drinking Water Standards
Learn about EPA's process and outcomes for identifying drinking water standards that may need revision to strengthen public health protection or improve efficiency of implementation.
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CAA Permitting in EPA's Pacific Southwest (Region 9)
Clean Air Act permitting in EPA's Pacific Southwest region, Region 9; serving Arizona, California, Hawaii, Nevada, Pacific Island Territories and 148 Tribal Nations.
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Affected States Notifications in EPA's Pacific Southwest
Information about Tribes approved for Treatment as a State (TAS) in EPA's Pacific Southwest (Region 9).
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Clean Air Act Permitting in California
Information on Clean Air Act Permitting in California and EPA's oversight.
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Individual Inert Ingredient Database
New Inerts Database - Temporary while InertsFinder gets fixed