Learn the Issues
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Лесные пожары и качество воздуха в помещениях (IAQ)
Russian translation of Wildfires and Indoor Air Quality web page
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Region 4 State and Local Permitting Authority Contacts
NSR permitting contacts for air agencies located within USEPA Region 4
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Smart Data Infrastructure for Wet Weather Control and Decision Support
This document focuses on how municipalities, utilities, and related organizations can use advances in technology to implement “smart data infrastructure” for wet weather control.
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Consumer Confidence Report Rule (CCR) Presentation
Consumer Confidence Report Rule (CCR) Presentation prepared by Bailey Smith and presented by Judy Bloom at the WARWS conference in the spring of 2023.
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Integrated Planning Frequent Questions
EPA's responses to frequently asked questions about the integrated planning process.
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Rhode Island's 2024 303(d) List Report and Related Documents
View supporting documents for Rhode Island's 2024 section 303(d) list of impaired waters.
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Nitrate & Nitrite Rule for Transient Non-Community Water Systems Presentation
Nitrate & Nitrite Rule for Transient Non-Community Water Systems Presentation - Prepared by Bailey Smith and Jamie Harris. Presented by Jamie Harris at the WARWS Conference held in April of 2023.
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Learn About Green Vehicles
EPA's Green Vehicle Guide will help you find information on vehicles that are more efficient and less polluting.
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Monitoring, Assessment and TMDLs: California
An overview of Clean Water Act (CWA) monitoring, assessment, and Total Maximum Daily Loads (TMDLs) in California.
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Hot Topics in Washington
Learn about some of EPA's environmental priorities in Washington.
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Drayage Truck Best Practices to Improve Air Quality
Drayage truckers best practices include: replacing older trucks with newer cleaner trucks, avoiding idling, maintaining engines, retrofitting trucks with verified technologies, and operating during off-peak hours.
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Harbor Craft (HC) Best Practices to Improve Air Quality
Provides best practices that can be utilized by ports facilities to improve air quality including implementing a vessel speed reduction program, reducing vessel turnaround time, and using shore power.
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R9UIC-CA3-FY19-1: 5E Boron Americas Fort Cady Project, San Bernardino County, CA
Class III In-Situ Production of Borate Permit No. R9UIC-CA3-FY19-1 and related documents issued to: 5E Boron Americas, LLC, 9329 Mariposa Road, Suite 210, Hesperia, CA 92344 (formerly Fort Cady California Corporation).
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NPDES Tools
To gain information on specific facilities with NPDES permits, several EPA public search tools may be helpful.
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Ports Primer: 8.3 Citizen Science Case Studies
Case studies highlighting projects with near-port communities and ports to reduce environmental impacts.
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Grants Policy Issuance (GPI) 15-01: Performance Partnership Grants for States
This policy increases awareness of the administrative and programmatic flexibility available through Performance Partnership Grants (PPGs), encourages PPG use and ensures consistent PPG implementation and management.
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UIC-09-2024-0031: Elk Hills, LLC and California Resources Corporation, Tupman, CA; Consent Agreement and Proposed Final Order
Consent Agreement and Proposed Final Order in the Matter of Elk Hills, LLC and California Resources Corporation. Docket Number UIC-09-2024-0031. UIC Permit Number R9UIC-CA5-FY20.
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Ports Primer: 8.1 Using Scientific Data and Research
Communities can demonstrate environmental concerns by providing scientific evidence of environmental impact. Communities may be able to access existing local data and conduct their own analyses or communities may turn to existing studies.
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Class V Geothermal Injection Permit No. R9UIC-HI5-FY16-1R: Puna Geothermal Venture, Pahoa, Hawaii
Class V Geothermal Injection Permit No. R9UIC-HI5-FY16-1R provides authorization to operate four Class V geothermal injection wells known as Kapoho State 1A, 3, 11 and 13 for Puna Geothermal Venture, 14-3860 Kapoho-Pahoa Road, Pahoa, Hawaii 96778.
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UIC Class I Permit No. R9UIC-CA1-FY17-1R: CXA La Paloma LLC, McKittrick, CA
Documents related to CXA La Paloma Generating Company, LLC's (LPGC) permit R9UIC-CA1-FY17-1R (CA10710001) to operate a Class I injection well facility to dispose of non-hazardous wastewater from the La Paloma Generating Plant.