Hillsborough County, New Hampshire — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Hillsborough County, NH?
In Hillsborough County, New Hampshire, public U.S. EPA records track 1,351 regulated facilities (#7 of 21 in New Hampshire), including 16 (1.2%) High-Risk sites and $12,294,053 in federal penalties. Countywide due diligence also covers 19 Safe Drinking Water (SDWIS) facilities, 613 Clean Water NPDES permits, 9 FEMA Federal Disaster Declarations (8 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Hillsborough 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📊 Hillsborough County, NH Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Hillsborough County
ZIP Codes in Hillsborough County
Top EPA Regulated Facilities in Hillsborough 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 • GREENVILLE, NH (ZIP 03048 Sector) | HIGH (83/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MERRIMACK, NH (ZIP 03054 Sector) | HIGH (71/100) | Significant Violation (4 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • NASHUA, NH (ZIP 03060 Sector) | HIGH (71/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MANCHESTER, NH (ZIP 03103 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • NASHUA, NH (ZIP 03063 Sector) | HIGH (64/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MANCHESTER, NH (ZIP 03103 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • BENNINGTON, NH (ZIP 03442 Sector) | MODERATE (52/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MANCHESTER, NH (ZIP 03105 Sector) | MODERATE (52/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| SIERRA TRADING POST S 0087 FREE PREVIEW (LOW RISK) | 79 S RIVER RDUNIT 1, BEDFORD, NH 03110 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| NOURIA ENERGY FREE PREVIEW (LOW RISK) | 195 S RIVER RD, BEDFORD, NH 03110 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| NATIONAL TIRE & BATTERY 8587 FREE PREVIEW (LOW RISK) | 1895 S WILLOW ST, MANCHESTER, NH 03103 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| RAPID REFILL FREE PREVIEW (LOW RISK) | 650 SECOND ST, MANCHESTER, NH 03102 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Hillsborough County, New Hampshire Environmental Due Diligence
How many EPA-regulated environmental sites are in Hillsborough County, New Hampshire?
Public U.S. EPA records track 1,351 regulated facilities in Hillsborough County, New Hampshire (ranking #7 of 21 jurisdictions in NH). Of those, 16 (1.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 19 (1.4%) have active non-compliance quarters.
Which ZIP codes and cities in Hillsborough County have the highest regulated facility density?
Within Hillsborough County, the highest concentrations of EPA-tracked facilities are located in ZIP 03054 (Merrimack, 384 sites), ZIP 03055 (Milford, 318 sites), ZIP 03281 (Weare, 93 sites), spanning municipal corridors including Merrimack (384 sites), Milford (318 sites), Antrim (46 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Hillsborough County?
Across Hillsborough County, 1,273 facilities (94.2% 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 Hillsborough County, NH?
Geologic indoor air screening places Hillsborough County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Hillsborough County, NH?
Federal records track 19 Safe Drinking Water (SDWIS) facilities, 613 Clean Water Act NPDES permits, and 568 impaired water dischargers in Hillsborough County, alongside 9 historical FEMA federal disaster declarations (8 flood/storm events).
Does Hillsborough County, NH have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Hillsborough County indicates a MODERATE 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.