Resources for Derry
Permittee-specific resources created to assist Derry in completing MS4 permit requirements.
Appendix F
- Appendix F: Hoods Pond LPCP Scope and Calculations
- Appendix F: Hoods Pond LPCP Parcel Priority Ranking
Appendix H
Chloride:
Phosphorus:
- 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
Water Quality Data
MS4 Regulated Area Map
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):
Salt Buffer Zone Maps
Find the 500-foot salt buffer zone maps at the bottom of our Winter Maintenance page.