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ROCHESTER WATER DEPT

PWS ID: NH2001010 · ROCHESTER, New Hampshire 03867

ROCHESTER WATER DEPT serves 25,000 people in ROCHESTER, New Hampshire using Surface Water water sources. It has 43 recorded EPA violations, including 34 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ROCHESTER WATER DEPT

ROCHESTER WATER DEPT is a local-owned community water system that delivers drinking water to 25,000 residents in ROCHESTER, New Hampshire (Strafford County) through 7,500 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 43 total violations for this system , of which 34 (79%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 5 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is TTHM, recorded in 20 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. ROCHESTER WATER DEPT's 43 violations sit below the New Hampshire average. Statewide, 23 of 51 UCMR5-tested systems have reported PFAS detections (45.1%). 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
25,000
Total Violations
43
Health-Based Violations
34
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
7,500
County
Strafford
School/Daycare
No
MCL Violations
32
Monitoring Violations
5
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 20 2016
Coliform (TCR) MCL 8 2012
Coliform (TCR) MR 5 2014
Total Haloacetic Acids (HAA5) MCL 4 2022
Surface Water Treatment Rule TT 2 1997
Public Notice Other 2 2017

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 155 samples detected PFAS.

Contaminant Date Result MRL Status
8:2 FTS 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/5/2024 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 9/5/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/5/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/5/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/5/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/5/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/5/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/5/2024 <0.006 µg/L 0.006 µg/L Not Detected
HFPO-DA 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 9/5/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/5/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/5/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFBA 9/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/5/2024 <0.004 µg/L 0.004 µg/L Not Detected

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 ROCHESTER WATER DEPT.

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 NH2001010 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
2022 Total Haloacetic Acids (HAA5) MCL 4 SDWIS / NH2001010 / 2456
2017 Public Notice Other 2 SDWIS / NH2001010 / 7500
2016 TTHM MCL 20 SDWIS / NH2001010 / 2950
2014 Coliform (TCR) MR 5 SDWIS / NH2001010 / 3100
2012 Coliform (TCR) MCL 8 SDWIS / NH2001010 / 3100
1997 Surface Water Treatment Rule TT 2 SDWIS / NH2001010 / 0200

How ROCHESTER WATER DEPT Compares

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

Metric ROCHESTER WATER DEPT New Hampshire avg Federal benchmark
Total violations 43 63.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 34 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 25,000 506 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is ROCHESTER WATER DEPT water safe to drink? ▼
ROCHESTER WATER DEPT (PWS ID: NH2001010) has 43 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 25,000 people using Surface Water sources.
How many people does ROCHESTER WATER DEPT serve? ▼
ROCHESTER WATER DEPT serves 25,000 people in ROCHESTER, New Hampshire. It is a Local-owned system using Surface Water water sources with 7,500 service connections.
What type of violations does ROCHESTER WATER DEPT have? ▼
ROCHESTER WATER DEPT has 43 total violations: 34 health-based violations (MCL exceedances or treatment failures), 5 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ROCHESTER WATER DEPT water? ▼
No. ROCHESTER WATER DEPT was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does ROCHESTER WATER DEPT use? ▼
ROCHESTER WATER DEPT uses Surface Water 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial