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States → New Hampshire

Non-Transient Non-Community Water System · PWS NH1339030

Wentworth Douglass Med Off

Dover, New Hampshire 03820 - drinking water served from groundwater sources to 379 people, tracked in EPA SDWIS and UCMR5.

379
People served
52
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 52 drinking-water violations at Wentworth Douglass Med Off, 19% of them health-based - below the New Hampshire per-system average.

52
Total EPA violations on record
19%
Health-based (MCL / treatment failure)
379
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wentworth Douglass Med Off

Wentworth Douglass Med Off is a private-owned non-transient non-community water system that delivers drinking water to 379 residents in Dover, New Hampshire (Strafford County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 52 total violations for this system , of which 10 (19%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 42 monitoring and reporting violations are on file. The most recent violation on record dates to 2013.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 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. Statewide, 23 of 51 UCMR5-tested systems have reported PFAS detections (45.1%).

Wentworth Douglass Med Off's 52 violations sit below 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
379
Total Violations
52
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Strafford
School/Daycare
No
MCL Violations
10
Monitoring Violations
42
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 10 2012
cis-1,2-Dichloroethylene MR 2 2013
Xylenes, Total MR 2 2013
DICHLOROMETHANE MR 2 2013
p-Dichlorobenzene MR 2 2013
Vinyl chloride MR 2 2013
1,1-Dichloroethylene MR 2 2013
trans-1,2-Dichloroethylene MR 2 2013
1,2-Dichloroethane MR 2 2013
1,1,1-Trichloroethane MR 2 2013
1,2-Dichloropropane MR 2 2013
Trichloroethylene MR 2 2013
Tetrachloroethylene MR 2 2013
Benzene MR 2 2013
Ethylbenzene MR 2 2013
Styrene MR 2 2013
1,2,4-Trichlorobenzene MR 2 2013
Carbon tetrachloride MR 2 2013
o-Dichlorobenzene MR 2 2013
CHLOROBENZENE MR 2 2013
1,1,2-Trichloroethane MR 2 2013
Toluene MR 2 2013

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 Wentworth Douglass Med Off.

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 NH1339030 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
2013 cis-1,2-Dichloroethylene MR 2 SDWIS / NH1339030 / 2380
2013 Xylenes, Total MR 2 SDWIS / NH1339030 / 2955
2013 DICHLOROMETHANE MR 2 SDWIS / NH1339030 / 2964
2013 p-Dichlorobenzene MR 2 SDWIS / NH1339030 / 2969
2013 Vinyl chloride MR 2 SDWIS / NH1339030 / 2976
2013 1,1-Dichloroethylene MR 2 SDWIS / NH1339030 / 2977
2013 trans-1,2-Dichloroethylene MR 2 SDWIS / NH1339030 / 2979
2013 1,2-Dichloroethane MR 2 SDWIS / NH1339030 / 2980
2013 1,1,1-Trichloroethane MR 2 SDWIS / NH1339030 / 2981
2013 1,2-Dichloropropane MR 2 SDWIS / NH1339030 / 2983
2013 Trichloroethylene MR 2 SDWIS / NH1339030 / 2984
2013 Tetrachloroethylene MR 2 SDWIS / NH1339030 / 2987
2013 Benzene MR 2 SDWIS / NH1339030 / 2990
2013 Ethylbenzene MR 2 SDWIS / NH1339030 / 2992
2013 Styrene MR 2 SDWIS / NH1339030 / 2996

How Wentworth Douglass Med Off Compares

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

Metric Wentworth Douglass Med Off New Hampshire avg Federal benchmark
Total violations 52 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 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 379 506 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 Wentworth Douglass Med Off water safe to drink? ▼
Wentworth Douglass Med Off (PWS ID: NH1339030) has 52 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 379 people using Groundwater sources.
How many people does Wentworth Douglass Med Off serve? ▼
Wentworth Douglass Med Off serves 379 people in Dover, New Hampshire. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Wentworth Douglass Med Off have? ▼
Wentworth Douglass Med Off has 52 total violations: 10 health-based violations (MCL exceedances or treatment failures), 42 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wentworth Douglass Med Off water? ▼
No PFAS testing data is available for Wentworth Douglass Med Off under the EPA's UCMR5 monitoring program.
What water source does Wentworth Douglass Med Off use? ▼
Wentworth Douglass Med Off uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.