Learn the Issues
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Frequent Questions: Radiation Sources
View frequently asked questions and answers related to radiation sources by topic.
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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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Mail Irradiation
During the irradiation process, mail must pass through a high energy beam of ionizing radiation in order to kill harmful bacteria. Irradiation does not make the mail radioactive.
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FY2025 Allotments Tables
Fiscal Year 2025 Allotments for the State Revolving Fund Provisions of the Infrastructure Investment and Jobs Act and Base Program Funding & Attachments
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Fiscal Year 2025 Allotments for the State Revolving Fund Provisions of the Infrastructure Investment and Jobs Act and Base Program Funding
Fiscal Year 2025 Allotments for the State Revolving Fund Provisions of the Infrastructure Investment and Jobs Act and Base Program Funding
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Reports to Congress about the Drinking Water State Revolving Fund Program
Reports to Congress; Annual Reports ; Cross-collateralization; drinking water capital stock; Cash draw ratio; Automated Clearing House (ACH)
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SAS Project: Leave No Trace—Indian River Lagoon Aquatic Preserves
Project information about the SAS project titled "Leave No Trace—Indian River Lagoon Aquatic Preserves."
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SAS Project: Infinite Bottle Project
Project information about the SAS project titled "Infinite Bottle Project."
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Draft Phase III Evaluations
Detailed evaluations for the Bay Jurisdictions
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Water Quality Standards Regulations: Massachusetts
Information related to Water Quality Standards for Massachusetts.
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Stormwater discharges from municipal sources in Region 10
Information about municipal NPDES stormwater permits in Idaho and Washington.
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SAS Project: Great American Cleanup in Georgia
Project information about the SAS project titled "Great American Cleanup in Georgia."
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SAS Project: Georgia's Coast is Not an Ashtray
Project information about the SAS project titled "Georgia's Coast is Not an Ashtray."
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SAS Project: Environmental Law and Policy Clinic
Project information about the SAS project titled "Environmental Law and Policy Clinic."
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Be a Good Neighbor Respect Smoke-and Vape-free Zones Infographic
This infographic depicts where not to smoke or vape.
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SAS Project: Don't Litter Lotts 1
Project information about the SAS project titled "Don't Litter Lotts 1."
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SAS Project: Discover Coral Reefs School Program
Project information about the SAS project titled "Discover Coral Reefs School Program."
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New Bedford Harbor Cleanup Plans, Technical Documents and Environmental Data
Get the data and reports behind the New Bedford Harbor Cleanup decisions.
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SAS Project: Develop STEM Curriculum
Project information about the SAS project titled "Develop STEM Curriculum."