PlainWater
States → New Hampshire

TENNEY BROOK II

PWS ID: NH1942010 · PLYMOUTH, New Hampshire 03264

TENNEY BROOK II serves 228 people in PLYMOUTH, New Hampshire using Groundwater water sources. It has 387 recorded EPA violations, including 67 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: TENNEY BROOK II

TENNEY BROOK II is a private-owned community water system that delivers drinking water to 228 residents in PLYMOUTH, New Hampshire (Grafton County) through 91 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 387 total violations for this system , of which 67 (17%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 304 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 67 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. TENNEY BROOK II's 387 violations sit above 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
228
Total Violations
387
Health-Based Violations
67
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
91
County
Grafton
School/Daycare
No
MCL Violations
67
Monitoring Violations
304
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 67 2003
Coliform (TCR) MR 26 2002
o-Dichlorobenzene MR 12 1995
p-Dichlorobenzene MR 12 1995
Vinyl chloride MR 12 1995
trans-1,2-Dichloroethylene MR 12 1995
1,1,1-Trichloroethane MR 12 1995
Carbon tetrachloride MR 12 1995
1,1,2-Trichloroethane MR 12 1995
Tetrachloroethylene MR 12 1995
CHLOROBENZENE MR 12 1995
Benzene MR 12 1995
Toluene MR 12 1995
1,2,4-Trichlorobenzene MR 12 1995
cis-1,2-Dichloroethylene MR 12 1995
Xylenes, Total MR 12 1995
DICHLOROMETHANE MR 12 1995
1,1-Dichloroethylene MR 12 1995
1,2-Dichloroethane MR 12 1995
Trichloroethylene MR 12 1995
Ethylbenzene MR 12 1995
Nitrate MR 12 1995
1,2-Dichloropropane MR 12 1995
Styrene MR 12 1995
Consumer Confidence Rule Other 10 2014
Lead and Copper Rule MR 8 2003
Chlorine MR 6 2017
Public Notice Other 2 2003

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 TENNEY BROOK II.

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 NH1942010 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
2017 Chlorine MR 6 SDWIS / NH1942010 / 0999
2014 Consumer Confidence Rule Other 10 SDWIS / NH1942010 / 7000
2003 Coliform (TCR) MCL 67 SDWIS / NH1942010 / 3100
2003 Lead and Copper Rule MR 8 SDWIS / NH1942010 / 5000
2003 Public Notice Other 2 SDWIS / NH1942010 / 7500
2002 Coliform (TCR) MR 26 SDWIS / NH1942010 / 3100
1995 o-Dichlorobenzene MR 12 SDWIS / NH1942010 / 2968
1995 p-Dichlorobenzene MR 12 SDWIS / NH1942010 / 2969
1995 Vinyl chloride MR 12 SDWIS / NH1942010 / 2976
1995 trans-1,2-Dichloroethylene MR 12 SDWIS / NH1942010 / 2979
1995 1,1,1-Trichloroethane MR 12 SDWIS / NH1942010 / 2981
1995 Carbon tetrachloride MR 12 SDWIS / NH1942010 / 2982
1995 1,1,2-Trichloroethane MR 12 SDWIS / NH1942010 / 2985
1995 Tetrachloroethylene MR 12 SDWIS / NH1942010 / 2987
1995 CHLOROBENZENE MR 12 SDWIS / NH1942010 / 2989

How TENNEY BROOK II Compares

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

Metric TENNEY BROOK II New Hampshire avg Federal benchmark
Total violations 387 63.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 67 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 228 506 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 TENNEY BROOK II water safe to drink? ▼
TENNEY BROOK II (PWS ID: NH1942010) has 387 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 228 people using Groundwater sources.
How many people does TENNEY BROOK II serve? ▼
TENNEY BROOK II serves 228 people in PLYMOUTH, New Hampshire. It is a Private-owned system using Groundwater water sources with 91 service connections.
What type of violations does TENNEY BROOK II have? ▼
TENNEY BROOK II has 387 total violations: 67 health-based violations (MCL exceedances or treatment failures), 304 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in TENNEY BROOK II water? ▼
No PFAS testing data is available for TENNEY BROOK II under the EPA's UCMR5 monitoring program.
What water source does TENNEY BROOK II use? ▼
TENNEY BROOK II 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.

Explore PlainWater

Water in New Hampshire

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for New Hampshire

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial