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  • Home
  • Calendar
  • Coalition Meetings
    • New Hampshire Lower Merrimack Valley Stormwater Coalition
    • Seacoast Stormwater Coalition
  • MCM and Appendices
    • MCM #1
    • MCM #2
    • MCM #3
    • MCM #4
    • MCM #5
    • MCM #6
    • Appendix F
    • Appendix H
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  • Federal NPDES Permits
    • New Hampshire Small MS4 General Permit
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  • NH Resources
  • Permittee-Specific Resources
  • Resources for Atkinson

Resources for Atkinson

Permittee-specific resources created to assist Atkinson in completing MS4 permit requirements.

Appendix H

  • Appendix H: PSIR Attachment A – Raw Municipal and Private Parcels in MS4 Area
  • Appendix H: PSIR Attachment C – Identification, delineation and prioritization of potential catchments with high phosphorus loading
  • Appendix H: PSIR Attachment D – Identification of potential retrofit opportunities or opportunities for the installation of structural BMPs during redevelopment

Hot Spot Mapping Data

  • Pollutant Load Summary Spreadsheet
  • Prioritized Load Summary Spreadsheet
  • Priority Ranked Parcel Summary Report
  • Inventory and Priority Ranking Spreadsheet

Industrial Facilities

  • List of Industrial Facilities within Municipal Boundaries

Water Quality Data

  • 2020/2022 303(d) Water Quality Impairments
  • 2017 NHMS4 General Permit TMDL List

MS4 Regulated Area Map

  • NH MS4 Regulated Area Maps Comparing 2000/2010 and 2020 Census Data
  • NH MS4 Regulated Area Map Based on the 2020 Census Data

Hot Spots Guidance

Hot Spots Guidance

Learn how to use the permittee-specific spreadsheets with this workshop: "Using Hot Spot Data and Reports for MS4 Compliance Workshop" (November 19, 2021):

  • Agenda
  • Recording of the workshop
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The resources available on this website are prepared by stakeholder groups with support from NHDES. These resources are made available on the MS4 website as a reference for New Hampshire’s MS4 communities to fulfill the requirements within the EPA New Hampshire Small MS4 General Permit. NHDES is not responsible for content, including links, contained in the resources. For accommodations, contact Tom Swenson at Thomas.D.Swenson@des.nh.gov.

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