PlainWater

PLEASANT LAKE MHP

PWS ID: NH2413010 · WARNER, New Hampshire 03278

PLEASANT LAKE MHP serves 218 people in WARNER, New Hampshire using Groundwater water sources. It has 40 recorded EPA violations, including 32 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: PLEASANT LAKE MHP

PLEASANT LAKE MHP is a private-owned community water system that delivers drinking water to 218 residents in WARNER, New Hampshire (Merrimack County) through 88 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 40 total violations for this system , of which 32 (80%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 4 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Arsenic, recorded in 32 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. PLEASANT LAKE MHP's 40 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
218
Total Violations
40
Health-Based Violations
32
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
88
County
Merrimack
School/Daycare
No
MCL Violations
32
Monitoring Violations
4
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 32 2019
Arsenic MR 4 2006
Public Notice Other 2 2007
Consumer Confidence Rule Other 2 2008

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 PLEASANT LAKE MHP.

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 NH2413010 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
2019 Arsenic MCL 32 SDWIS / NH2413010 / 1005
2008 Consumer Confidence Rule Other 2 SDWIS / NH2413010 / 7000
2007 Public Notice Other 2 SDWIS / NH2413010 / 7500
2006 Arsenic MR 4 SDWIS / NH2413010 / 1005

How PLEASANT LAKE MHP Compares

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

Metric PLEASANT LAKE MHP New Hampshire avg Federal benchmark
Total violations 40 63.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 32 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 218 506 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 PLEASANT LAKE MHP water safe to drink?
PLEASANT LAKE MHP (PWS ID: NH2413010) has 40 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 218 people using Groundwater sources.
How many people does PLEASANT LAKE MHP serve?
PLEASANT LAKE MHP serves 218 people in WARNER, New Hampshire. It is a Private-owned system using Groundwater water sources with 88 service connections.
What type of violations does PLEASANT LAKE MHP have?
PLEASANT LAKE MHP has 40 total violations: 32 health-based violations (MCL exceedances or treatment failures), 4 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in PLEASANT LAKE MHP water?
No PFAS testing data is available for PLEASANT LAKE MHP under the EPA's UCMR5 monitoring program.
What water source does PLEASANT LAKE MHP use?
PLEASANT LAKE MHP 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

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

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