PlainWater
States → Vermont

Community Water System · PWS VT0005281

Mountain Water Company

Warren, Vermont 05487 - drinking water served from surface water sources to 2,400 people, tracked in EPA SDWIS and UCMR5.

2,400
People served
188
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 188 drinking-water violations at Mountain Water Company, 3% of them health-based - above the Vermont per-system average.

188
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
2,400
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mountain Water Company

Mountain Water Company is a private-owned community water system that delivers drinking water to 2,400 residents in Warren, Vermont (Washington County) through 652 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 188 total violations for this system , of which 5 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 177 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Nitrate, recorded in 44 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Vermont, EPA tracks 1,357 public water systems serving 646,999 people, with 153,729 cumulative violations and 16,917 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 113.3 violations. Statewide, 3 of 37 UCMR5-tested systems have reported PFAS detections (8.1%).

Mountain Water Company's 188 violations sit above the Vermont 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
2,400
Total Violations
188
Health-Based Violations
5
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
652
County
Washington
School/Daycare
No
MCL Violations
5
Monitoring Violations
177
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 44 2024
Total Haloacetic Acids (HAA5) MR 22 2016
TTHM MR 18 2016
Lead and Copper Rule MR 13 2023
CYANIDE MR 12 2019
Coliform (TCR) MR 8 2007
Gross Alpha, Excl. Radon and U MR 6 2024
Radium-228 MR 6 2024
Radium-226 MR 6 2024
Coliform (TCR) MCL 5 2008
Barium MR 4 1999
Chromium MR 4 1999
Mercury MR 4 1999
Antimony, Total MR 4 1999
Beryllium, Total MR 4 1999
Selenium MR 4 1999
Cadmium MR 4 1999
Nickel MR 4 1999
Thallium, Total MR 4 1999
Arsenic MR 4 1999
Surface Water Treatment Rule MR 2 1992

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 Mountain Water Company.

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 VT0005281 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Vermont Drinking Water Authority

Vermont'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 VT 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
2024 Nitrate MR 44 SDWIS / VT0005281 / 1040
2024 Gross Alpha, Excl. Radon and U MR 6 SDWIS / VT0005281 / 4000
2024 Radium-228 MR 6 SDWIS / VT0005281 / 4030
2024 Radium-226 MR 6 SDWIS / VT0005281 / 4020
2023 Lead and Copper Rule MR 13 SDWIS / VT0005281 / 5000
2019 CYANIDE MR 12 SDWIS / VT0005281 / 1024
2016 Total Haloacetic Acids (HAA5) MR 22 SDWIS / VT0005281 / 2456
2016 TTHM MR 18 SDWIS / VT0005281 / 2950
2008 Coliform (TCR) MCL 5 SDWIS / VT0005281 / 3100
2007 Coliform (TCR) MR 8 SDWIS / VT0005281 / 3100
1999 Barium MR 4 SDWIS / VT0005281 / 1010
1999 Chromium MR 4 SDWIS / VT0005281 / 1020
1999 Mercury MR 4 SDWIS / VT0005281 / 1035
1999 Antimony, Total MR 4 SDWIS / VT0005281 / 1074
1999 Beryllium, Total MR 4 SDWIS / VT0005281 / 1075

How Mountain Water Company Compares

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

Metric Mountain Water Company Vermont avg Federal benchmark
Total violations 188 113.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 8.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,400 477 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,357 regulated public water systems in Vermont.

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 Mountain Water Company water safe to drink? ▼
Mountain Water Company (PWS ID: VT0005281) has 188 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,400 people using Surface Water sources.
How many people does Mountain Water Company serve? ▼
Mountain Water Company serves 2,400 people in Warren, Vermont. It is a Private-owned system using Surface Water water sources with 652 service connections.
What type of violations does Mountain Water Company have? ▼
Mountain Water Company has 188 total violations: 5 health-based violations (MCL exceedances or treatment failures), 177 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mountain Water Company water? ▼
No PFAS testing data is available for Mountain Water Company under the EPA's UCMR5 monitoring program.
What water source does Mountain Water Company use? ▼
Mountain Water Company 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.
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.