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OYSTER RIVER APTS EAST/WEST

PWS ID: NH0152060 · WINDHAM, New Hampshire 03087

OYSTER RIVER APTS EAST/WEST serves 60 people in WINDHAM, New Hampshire using Groundwater water sources. It has 62 recorded EPA violations, including 6 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: OYSTER RIVER APTS EAST/WEST

OYSTER RIVER APTS EAST/WEST is a private-owned community water system that delivers drinking water to 60 residents in WINDHAM, New Hampshire (Strafford County) through 24 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 62 total violations for this system , of which 6 (10%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 48 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 6 violations (MCL, health-based). 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. OYSTER RIVER APTS EAST/WEST's 62 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
60
Total Violations
62
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
24
County
Strafford
School/Daycare
No
MCL Violations
6
Monitoring Violations
48
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 6 1992
Consumer Confidence Rule Other 4 2016
Coliform (TCR) MR 2 1992
Nitrate MR 2 1993
Xylenes, Total MR 2 1993
DICHLOROMETHANE MR 2 1993
o-Dichlorobenzene MR 2 1993
Vinyl chloride MR 2 1993
1,1-Dichloroethylene MR 2 1993
trans-1,2-Dichloroethylene MR 2 1993
Carbon tetrachloride MR 2 1993
Tetrachloroethylene MR 2 1993
CHLOROBENZENE MR 2 1993
Toluene MR 2 1993
Ethylbenzene MR 2 1993
Styrene MR 2 1993
1,2-Dichloropropane MR 2 1993
1,1,2-Trichloroethane MR 2 1993
p-Dichlorobenzene MR 2 1993
Lead and Copper Rule MR 2 1995
1,2,4-Trichlorobenzene MR 2 1993
Trichloroethylene MR 2 1993
cis-1,2-Dichloroethylene MR 2 1993
1,1,1-Trichloroethane MR 2 1993
Benzene MR 2 1993
1,2-Dichloroethane MR 2 1993

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 OYSTER RIVER APTS EAST/WEST.

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 NH0152060 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
2016 Consumer Confidence Rule Other 4 SDWIS / NH0152060 / 7000
1995 Lead and Copper Rule MR 2 SDWIS / NH0152060 / 5000
1993 Nitrate MR 2 SDWIS / NH0152060 / 1040
1993 Xylenes, Total MR 2 SDWIS / NH0152060 / 2955
1993 DICHLOROMETHANE MR 2 SDWIS / NH0152060 / 2964
1993 o-Dichlorobenzene MR 2 SDWIS / NH0152060 / 2968
1993 Vinyl chloride MR 2 SDWIS / NH0152060 / 2976
1993 1,1-Dichloroethylene MR 2 SDWIS / NH0152060 / 2977
1993 trans-1,2-Dichloroethylene MR 2 SDWIS / NH0152060 / 2979
1993 Carbon tetrachloride MR 2 SDWIS / NH0152060 / 2982
1993 Tetrachloroethylene MR 2 SDWIS / NH0152060 / 2987
1993 CHLOROBENZENE MR 2 SDWIS / NH0152060 / 2989
1993 Toluene MR 2 SDWIS / NH0152060 / 2991
1993 Ethylbenzene MR 2 SDWIS / NH0152060 / 2992
1993 Styrene MR 2 SDWIS / NH0152060 / 2996

How OYSTER RIVER APTS EAST/WEST Compares

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

Metric OYSTER RIVER APTS EAST/WEST New Hampshire avg Federal benchmark
Total violations 62 63.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 6 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 60 506 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 OYSTER RIVER APTS EAST/WEST water safe to drink? ▼
OYSTER RIVER APTS EAST/WEST (PWS ID: NH0152060) has 62 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does OYSTER RIVER APTS EAST/WEST serve? ▼
OYSTER RIVER APTS EAST/WEST serves 60 people in WINDHAM, New Hampshire. It is a Private-owned system using Groundwater water sources with 24 service connections.
What type of violations does OYSTER RIVER APTS EAST/WEST have? ▼
OYSTER RIVER APTS EAST/WEST has 62 total violations: 6 health-based violations (MCL exceedances or treatment failures), 48 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OYSTER RIVER APTS EAST/WEST water? ▼
No PFAS testing data is available for OYSTER RIVER APTS EAST/WEST under the EPA's UCMR5 monitoring program.
What water source does OYSTER RIVER APTS EAST/WEST use? ▼
OYSTER RIVER APTS EAST/WEST 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.

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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.

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