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Community Water System · PWS NH2361010

Troy Water Works

Troy, New Hampshire 03465 - drinking water served from groundwater sources to 1,200 people, tracked in EPA SDWIS and UCMR5.

1,200
People served
245
EPA violations
18
Health-based
Untested
UCMR5 result

The verdict

EPA records 245 drinking-water violations at Troy Water Works, 7% of them health-based - above the New Hampshire per-system average.

245
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
1,200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Troy Water Works

Troy Water Works is a local-owned community water system that delivers drinking water to 1,200 residents in Troy, New Hampshire (Cheshire County) through 461 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 245 total violations for this system , of which 18 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 215 monitoring and reporting violations are on file. The most recent violation on record dates to 2011.

The most frequently cited contaminant at this system is Nitrate, recorded in 15 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New Hampshire, EPA tracks 2,453 public water systems serving 1,242,123 people, with 155,970 cumulative violations and 29,649 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 63.6 violations. Statewide, 23 of 51 UCMR5-tested systems have reported PFAS detections (45.1%).

Troy Water Works's 245 violations sit above the New Hampshire average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
1,200
Total Violations
245
Health-Based Violations
18
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
461
County
Cheshire
School/Daycare
No
MCL Violations
0
Monitoring Violations
215
Treatment Tech Violations
18

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 15 1995
Lead and Copper Rule TT 10 2007
Surface Water Treatment Rule TT 8 2002
Surface Water Treatment Rule MR 8 2006
1,2,4-Trichlorobenzene MR 5 1994
cis-1,2-Dichloroethylene MR 5 1994
Chromium MR 5 1994
DICHLOROMETHANE MR 5 1994
CYANIDE MR 5 1994
Fluoride MR 5 1994
p-Dichlorobenzene MR 5 1994
Nickel MR 5 1994
Selenium MR 5 1994
1,1,2-Trichloroethane MR 5 1994
Tetrachloroethylene MR 5 1994
CHLOROBENZENE MR 5 1994
Benzene MR 5 1994
Toluene MR 5 1994
Ethylbenzene MR 5 1994
Styrene MR 5 1994
Nitrite MR 5 1995
1,1-Dichloroethylene MR 5 1994
Xylenes, Total MR 5 1994
1,1,1-Trichloroethane MR 5 1994
1,2-Dichloropropane MR 5 1994
1,2-Dichloroethane MR 5 1994
o-Dichlorobenzene MR 5 1994
Cadmium MR 5 1994
Barium MR 5 1994
trans-1,2-Dichloroethylene MR 5 1994

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Troy Water Works.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NH2361010 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Hampshire Drinking Water Authority

New Hampshire's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find NH regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2011 Gross Alpha, Excl. Radon and U MR 2 SDWIS / NH2361010 / 4000
2011 Combined Uranium MR 2 SDWIS / NH2361010 / 4006
2011 Combined Radium (-226 and -228) MR 2 SDWIS / NH2361010 / 4010
2008 Lead and Copper Rule MR 4 SDWIS / NH2361010 / 5000
2007 Lead and Copper Rule TT 10 SDWIS / NH2361010 / 5000
2006 Surface Water Treatment Rule MR 8 SDWIS / NH2361010 / 0200
2004 Chlorine MR 4 SDWIS / NH2361010 / 0999
2004 Total Haloacetic Acids (HAA5) MR 4 SDWIS / NH2361010 / 2456
2004 TTHM MR 4 SDWIS / NH2361010 / 2950
2002 Surface Water Treatment Rule TT 8 SDWIS / NH2361010 / 0200
1995 Nitrate MR 15 SDWIS / NH2361010 / 1040
1995 Nitrite MR 5 SDWIS / NH2361010 / 1041
1994 1,2,4-Trichlorobenzene MR 5 SDWIS / NH2361010 / 2378
1994 cis-1,2-Dichloroethylene MR 5 SDWIS / NH2361010 / 2380
1994 Chromium MR 5 SDWIS / NH2361010 / 1020

How Troy Water Works Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Troy Water Works New Hampshire avg Federal benchmark
Total violations 245 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 18 12.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 45.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,200 506 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,453 regulated public water systems in New Hampshire.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Troy Water Works water safe to drink? ▼
Troy Water Works (PWS ID: NH2361010) has 245 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,200 people using Groundwater sources.
How many people does Troy Water Works serve? ▼
Troy Water Works serves 1,200 people in Troy, New Hampshire. It is a Local-owned system using Groundwater water sources with 461 service connections.
What type of violations does Troy Water Works have? ▼
Troy Water Works has 245 total violations: 18 health-based violations (MCL exceedances or treatment failures), 215 monitoring/reporting violations, and 18 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Troy Water Works water? ▼
No PFAS testing data is available for Troy Water Works under the EPA's UCMR5 monitoring program.
What water source does Troy Water Works use? ▼
Troy Water Works uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.