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Hillsborough County, New Hampshire: environmental and disease records

Cancer mortality in Hillsborough County is 140 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 1,833 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (607), Air permit holder (minor source) (329), Auto repair or body shop (mapped facility) (277). 2 correctional facilities operate in the county. EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 30 in a million, driven mainly by formaldehyde.

Rates are age-adjusted per 100,000 people. A cancer signal is marked significant when the lower bound of its 95 percent confidence interval is above the U.S. rate. Facility counts use active federal records located inside the county boundary. Approximate county center: 42.9565, -71.7205.

How this county ranks in New Hampshire

View on the heat map Scan an address in this county

Cancer deaths and new cases versus the United States

Source: NCI and CDC State Cancer Profiles, both sexes, all ages. Sorted by the ratio of the county rate to the U.S. rate.

Cancer rates for Hillsborough County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Bladder	New cases	25.7	18.7	1.37xSignificant	23.8 to 27.8	2019-2023
Thyroid	New cases	15.5	13	1.19xSignificant	13.9 to 17.3	2019-2023
Bladder	Deaths	4.8	4.1	1.17x	4 to 5.8	2020-2024
Melanoma of the skin	Deaths	2.3	2	1.15x	1.8 to 3	2020-2024
Brain & nervous system	New cases	7	6.2	1.13x	5.9 to 8.2	2019-2023
Childhood cancer (under 15)	New cases	18.2	16.4	1.11x	14 to 23.3	2019-2023
Esophagus	Deaths	4.1	3.7	1.11x	3.4 to 4.9	2020-2024
Non-Hodgkin lymphoma	New cases	20.4	18.5	1.1xSignificant	18.7 to 22.2	2019-2023
Lung & bronchus	New cases	56.7	51.8	1.09xSignificant	53.9 to 59.6	2019-2023
Brain & nervous system	Deaths	4.8	4.4	1.09x	4 to 5.8	2020-2024
Esophagus	New cases	4.8	4.6	1.04x	4 to 5.7	2019-2023
Non-Hodgkin lymphoma	Deaths	5	4.8	1.04x	4.2 to 6	2020-2024
Pancreas	New cases	14.3	13.9	1.03x	12.9 to 15.9	2019-2023
Pancreas	Deaths	11.6	11.3	1.03x	10.4 to 13	2020-2024
All cancer	New cases	463.9	453.4	1.02xSignificant	455.6 to 472.4	2019-2023
Melanoma of the skin	New cases	24	23.8	1.01x	22.1 to 26	2019-2023
Lung & bronchus	Deaths	30.4	30.2	1.01x	28.3 to 32.5	2020-2024
All cancer	Deaths	140	143.2	0.98x	135.5 to 144.5	2020-2024
Stomach	New cases	6.2	6.6	0.94x	5.3 to 7.3	2019-2023
Leukemia	New cases	13.4	14.5	0.92x	12 to 14.9	2019-2023
Kidney & renal pelvis	New cases	16.1	17.9	0.9x	14.6 to 17.8	2019-2023
Liver & bile duct	New cases	7.1	8.7	0.82x	6.2 to 8.2	2019-2023
Stomach	Deaths	2.2	2.7	0.81x	1.6 to 2.9	2020-2024
Liver & bile duct	Deaths	5.3	6.6	0.8x	4.5 to 6.2	2020-2024
Leukemia	Deaths	4.4	5.7	0.77x	3.7 to 5.4	2020-2024
Kidney & renal pelvis	Deaths	2.5	3.4	0.74x	2 to 3.2	2020-2024

Mortality measures versus the U.S. county median

Source: County Health Rankings, built from CDC National Vital Statistics System death records. The comparison value is the median of all U.S. counties.

Mortality measures for Hillsborough County
Measure	County	U.S. median	Difference	Unit
Premature death	6,908.9	9,842.6	-30%	years of life lost before age 75 per 100,000
Life expectancy	78.6	75.3	+4%	years
Child mortality	40.1	59.8	-33%	deaths under age 18 per 100,000
Infant mortality	4	6.2	-35%	deaths under age 1 per 1,000 live births
Injury deaths	88.2	96.9	-9%	deaths per 100,000
Drug overdose deaths	37.2	28.6	+30%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 30 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde15.67 per million
Carbon Tetrachloride3 per million
Naphthalene2.02 per million
Acetaldehyde1.86 per million

EPA Air Quality Index 2025

Monitored on 365 days: 310 good, 4 unhealthy for sensitive groups or worse. Median AQI 38, peak 123.

Regulated facilities, sites and hazards by type

1,833 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

NPDES wastewater discharge permit607
Air permit holder (minor source)329
Auto repair or body shop (mapped facility)277
Gas station (mapped facility)137
Brownfield property104
Rail grade crossing91
Small hazardous waste generator52
Toxic chemical release facility (TRI)44
Large hazardous waste generator36
TRI reporting facility34
Dry cleaner (mapped facility)29
Heliport23
Industrial wastewater discharge19
Major air pollution source7
Public airport7
Landfill (mapped facility)6
Hazardous waste transporter5
Hydroelectric plant5
Superfund (NPL) site5
EPA air quality monitor2
Commercial airport2
Correctional facility (prison or jail)2
Large greenhouse gas emitter2
Airfield1
Biomass power plant1
Oil-fired power plant1
Solar power plant1
Wind power plant1
Scrapyard (mapped facility)1
Proposed Superfund site1
Wastewater plant (mapped facility)1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

Fletcher's Paint Works & Storage, Milford
Superfund (NPL) site. Hazard Ranking System score 35.4. NPL Site.
EPA site ID NHD001079649 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
New Hampshire Plating Co., Merrimack
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID NHD001091453 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Sylvester, Nashua
Superfund (NPL) site. NPL Site.
EPA site ID NHD099363541 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Savage Municipal Water Supply, Milford
Superfund (NPL) site. Hazard Ranking System score 37.5. NPL Site.
EPA site ID NHD980671002 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
South Municipal Water Supply Well, Peterborough
Superfund (NPL) site. Hazard Ranking System score 35.6. NPL Site.
EPA site ID NHD980671069 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Mohawk Tannery, Nashua
Proposed Superfund site. Hazard Ranking System score 52.4. Proposed NPL Site.
EPA site ID NHD981889629 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 8
Bae Systems Information & Electronic Systems Integration, Nashua
Toxic chemical release facility (TRI). Chemicals: N-Methyl-2-pyrrolidone, Lead. Reports carcinogens. 22,044 lbs released over 5 years.
TRI facility ID 03061SNDRSDWHWY (U.S. EPA Toxics Release Inventory)
Severity 7.8
Infinitum Electric Inc., Nashua
Toxic chemical release facility (TRI). Chemicals: Ammonia, Lead. Reports carcinogens. 10,276 lbs released over 5 years.
TRI facility ID 03063CRCTC4STAT (U.S. EPA Toxics Release Inventory)
Severity 7.6
Worthen Industries Inc Upaco Div, Nashua
Toxic chemical release facility (TRI). Chemicals: Toluene, n-Hexane, N,N-Dimethylformamide, Xylene (mixed isomers) and 4 more. Reports carcinogens. 8,927 lbs released over 5 years.
TRI facility ID 03060PCDHS3EAST (U.S. EPA Toxics Release Inventory)
Severity 7.5
Vibracoustic Na Lp, Manchester
TRI reporting facility.
EPA FRS registry ID 110000313615 (U.S. EPA ECHO) Agency record
Severity 6.9
Amphenol Apc Inc, Nashua
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers, Formaldehyde, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Nitric acid and 4 more. Reports carcinogens. 1,244 lbs released over 5 years.
TRI facility ID 03062TRDYN4PITT (U.S. EPA Toxics Release Inventory)
Severity 6.9
Worthen Industries, Inc. - Nylco Division, Nashua
TRI reporting facility. Penalties $15,000.
EPA FRS registry ID 110023083973 (U.S. EPA ECHO) Agency record
Severity 6.8
Worthen Industries, Nashua
Toxic chemical release facility (TRI). Chemicals: Toluene. 54,531 lbs released over 5 years.
TRI facility ID 0306WWRTHN34CEL (U.S. EPA Toxics Release Inventory)
Severity 6.6
Vibracoustic Na Lp, Manchester
Toxic chemical release facility (TRI). Chemicals: N-Methyl-2-pyrrolidone, Diisocyanates. 27,793 lbs released over 5 years.
TRI facility ID 03103DSGRNGRENI (U.S. EPA Toxics Release Inventory)
Severity 6.4
Hitchiner Countergravity Cast Operations (Vco/Dco/Mct), Milford
Toxic chemical release facility (TRI). Chemicals: Nickel, Chromium, Cobalt. Reports carcinogens. 266 lbs released over 5 years.
TRI facility ID 03055HTCHNOLDWI (U.S. EPA Toxics Release Inventory)
Severity 6.4
Hitchiner Countergravity Centrifugal Cast Operations (Cco), Milford
Toxic chemical release facility (TRI). Chemicals: Polycyclic aromatic compounds, Chromium, Nickel, Cobalt. Reports carcinogens. 227 lbs released over 5 years.
TRI facility ID 03055HTCHN1SCAR (U.S. EPA Toxics Release Inventory)
Severity 6.3
Anheuser-Busch Llc (Merrimack Brewery), Merrimack
Toxic chemical release facility (TRI). Chemicals: Ammonia. 10,274 lbs released over 5 years.
TRI facility ID 03054NHSRB221DA (U.S. EPA Toxics Release Inventory)
Severity 6.1
Nashua Wwtp, Nashua
NPDES wastewater discharge permit.
EPA FRS registry ID 110007686110 (U.S. EPA ECHO) Agency record
Severity 6
Can-One / Kj Can Usa, Nashua
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Manganese. 6,599 lbs released over 5 years.
TRI facility ID 0306WBRKST141BU (U.S. EPA Toxics Release Inventory)
Severity 5.9
Colt Refining Inc, Merrimack
Toxic chemical release facility (TRI). Chemicals: Lead, Silver And Silver Compounds, Silver compounds, Copper and 2 more. Reports carcinogens. 70 lbs released over 5 years.
TRI facility ID 03054CLTRF12AST (U.S. EPA Toxics Release Inventory)
Severity 5.9
Parker Hannifin Corp Chomerics Div, Hudson
TRI reporting facility.
EPA FRS registry ID 110000313321 (U.S. EPA ECHO) Agency record
Severity 5.9
Parker Hannifin Corp Chomerics Div, Hudson
Toxic chemical release facility (TRI). Chemicals: Toluene, Tetrabromobisphenol A. 5,752 lbs released over 5 years.
TRI facility ID 03051CHMRC16FLA (U.S. EPA Toxics Release Inventory)
Severity 5.9
Benchmark Electronics Nh Div, Nashua
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 56 lbs released over 5 years.
TRI facility ID 03062BNCHM1INNV (U.S. EPA Toxics Release Inventory)
Severity 5.8
141 Burke Street Site Improvements, Nashua
TRI reporting facility.
EPA FRS registry ID 110071323406 (U.S. EPA ECHO) Agency record
Severity 5.8
Milford Wwtf Tertiary Upgrades, Milford
NPDES wastewater discharge permit.
EPA FRS registry ID 110001523511 (U.S. EPA ECHO) Agency record
Severity 5.8

Correctional facilities

Prisons, jails and corrections operations with an EPA facility record, and the drinking water and wastewater compliance attached to them.

Nh Dhhs Juvenile Justice Services, Manchester
EPA FRS registry ID
110009421492
Wastewater permit
None on record
EPA detailed facility report
Nh Dept. Of Corrections/ Nh State Prison For Women, Goffstown
EPA FRS registry ID
110015784677
Wastewater permit
None on record
EPA detailed facility report

Discovery / public records

Records to request for Hillsborough County

New Hampshire state cancer registry
Cancer incidence counts by census tract or ZIP code, by cancer type and year (de-identified). Any cancer cluster inquiries or investigations in Hillsborough County, and their findings.
New Hampshire vital statistics office
Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.
New Hampshire health department, environmental epidemiology
Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.
New Hampshire environmental agency and the U.S. EPA regional office
Compliance history, inspection reports, notices of violation, penalties and enforcement actions for each facility above, cited by EPA FRS registry ID.
New Hampshire drinking water program
Violation notices, sampling results and sanitary surveys for the public water systems serving the county, including any system serving a correctional facility.
Department of corrections or county sheriff
Water testing, grievances and environmental health inspections for the correctional facilities listed above.

Each Envyrofax address report includes a printable records request worksheet with the custodian and the exact request wording per finding.

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