Rockingham County, New Hampshire — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Rockingham County, New Hampshire, public U.S. EPA records track 680 regulated facilities (#12 of 21 in New Hampshire), including 6 (0.9%) High-Risk sites and $5,700 in federal penalties. Countywide due diligence also covers 6 Safe Drinking Water (SDWIS) facilities, 610 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Rockingham County, NH 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Rockingham County, NH Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Rockingham County
ZIP Codes in Rockingham County
Top EPA Regulated Facilities in Rockingham County, NH
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • NEWINGTON, NH (ZIP 03801 Sector) | HIGH (69/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • EPPING, NH (ZIP 03042 Sector) | HIGH (68/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SALEM, NH (ZIP 03079 Sector) | HIGH (65/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • RYE, NH (ZIP 03870 Sector) | HIGH (64/100) | Significant Violation (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • NEWINGTON, NH (ZIP 03801 Sector) | HIGH (64/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • NEWINGTON, NH (ZIP 03801 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PLAISTOW, NH (ZIP 03865 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WINDHAM, NH (ZIP 03087 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| MANROLAND GOSS WEB SYSTEMS FREE PREVIEW (LOW RISK) | 22 INDUSTRIAL DRIVE, EXETER, NH 03833 | LOW (26/100) | No Violation Identified (0 qtrs NC) | $0 |
| ALLEGRA MARKETING PRINT MAIL FREE PREVIEW (LOW RISK) | 222 INTERNATIONAL DR, PORTSMOUTH, NH 03801 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| SALEM FORD FREE PREVIEW (LOW RISK) | 60 SOUTH BROADWAY, SALEM, NH 03079 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| SOUTHERN NEW HAMPSHIRE REGIONAL WATER PROJECT- CONTRACT P1 FREE PREVIEW (LOW RISK) | SWEETHILL ROAD, PLAISTOW, NH 03865 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Rockingham County, New Hampshire Environmental Due Diligence
How many EPA-regulated environmental sites are in Rockingham County County, New Hampshire?
Public U.S. EPA records track 680 regulated facilities in Rockingham County County, New Hampshire (ranking #12 of 21 jurisdictions in NH). Of those, 6 (0.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 5 (0.7%) have active non-compliance quarters.
Which ZIP codes and cities in Rockingham County County have the highest regulated facility density?
Within Rockingham County County, the highest concentrations of EPA-tracked facilities are located in ZIP 03081 (Portsmouth, 4 sites), spanning municipal corridors including Madbury, Durham, Newington, Portsmouth (2 sites), Freemont (1 sites), Hudson & Londonderry (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Rockingham County County?
Across Rockingham County County, 8 facilities (1.2% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Rockingham County County, NH?
Geologic indoor air screening places Rockingham County County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Rockingham County County, NH?
Federal records track 6 Safe Drinking Water (SDWIS) facilities, 610 Clean Water Act NPDES permits, and 570 impaired water dischargers in Rockingham County County, alongside 3 historical FEMA federal disaster declarations (2 flood/storm events).
Does Rockingham County, NH have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Rockingham County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.