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Non-Transient Non-Community Water System · PWS MA1113016

Monument Mtn Regional Hs

Stockbridge, Massachusetts 01262 - drinking water served from groundwater sources to 1,700 people, tracked in EPA SDWIS and UCMR5.

1,700
People served
151
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 151 drinking-water violations at Monument Mtn Regional Hs, 1% of them health-based - above the Massachusetts per-system average.

151
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
1,700
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Monument Mtn Regional Hs

Monument Mtn Regional Hs is a local-owned non-transient non-community water system that delivers drinking water to 1,700 residents in Stockbridge, Massachusetts (Berkshire County) through 5 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 151 total violations for this system , of which 2 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 133 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 Lead and Copper Rule, recorded in 3 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 Massachusetts, EPA tracks 1,599 public water systems serving 10,332,845 people, with 73,886 cumulative violations and 7,389 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 46.2 violations. Statewide, 148 of 263 UCMR5-tested systems have reported PFAS detections (56.3%).

Monument Mtn Regional Hs's 151 violations sit above the Massachusetts 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
1,700
Total Violations
151
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
5
County
Berkshire
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
133
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 3 2015
Arsenic MR 2 2005
Cadmium MR 2 2005
Chromium MR 2 2005
CYANIDE MR 2 2005
Fluoride MR 2 2005
Nickel MR 2 2005
Selenium MR 2 2005
Beryllium, Total MR 2 2005
Thallium, Total MR 2 2005
Endrin MR 2 2005
BHC-GAMMA MR 2 2005
Methoxychlor MR 2 2005
Toxaphene MR 2 2005
Dalapon MR 2 2005
Diquat MR 2 2005
Glyphosate MR 2 2005
Di(2-ethylhexyl) adipate MR 2 2005
Simazine MR 2 2005
Dinoseb MR 2 2005
Hexachlorocyclopentadiene MR 2 2005
Carbofuran MR 2 2005
Atrazine MR 2 2005
LASSO MR 2 2005
2,3,7,8-TCDD MR 2 2005
Heptachlor MR 2 2005
Heptachlor epoxide MR 2 2005
2,4-D MR 2 2005
HEXACHLOROBENZENE MR 2 2005
Benzo(a)pyrene MR 2 2005

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 Monument Mtn Regional Hs.

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 MA1113016 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Massachusetts Drinking Water Authority

MassDEP, Drinking Water Program is the primacy agency that licenses and inspects Monument Mtn Regional Hs under EPA-delegated authority.

Open MA regulator portal

Source: MassDEP, Drinking Water Program

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 Total Haloacetic Acids (HAA5) MR 1 SDWIS / MA1113016 / 2456
2016 Groundwater Rule MR 1 SDWIS / MA1113016 / 0700
2015 Lead and Copper Rule MR 3 SDWIS / MA1113016 / 5000
2014 Chlorine MR 2 SDWIS / MA1113016 / 0999
2014 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 SDWIS / MA1113016 / 0400
2013 o-Dichlorobenzene MR 2 SDWIS / MA1113016 / 2968
2013 cis-1,2-Dichloroethylene MR 2 SDWIS / MA1113016 / 2380
2013 Ethylbenzene MR 2 SDWIS / MA1113016 / 2992
2013 Styrene MR 2 SDWIS / MA1113016 / 2996
2013 Tetrachloroethylene MR 2 SDWIS / MA1113016 / 2987
2013 Toluene MR 2 SDWIS / MA1113016 / 2991
2013 p-Dichlorobenzene MR 2 SDWIS / MA1113016 / 2969
2013 Xylenes, Total MR 2 SDWIS / MA1113016 / 2955
2013 Benzene MR 2 SDWIS / MA1113016 / 2990
2013 Trichloroethylene MR 2 SDWIS / MA1113016 / 2984

How Monument Mtn Regional Hs Compares

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

Metric Monument Mtn Regional Hs Massachusetts avg Federal benchmark
Total violations 151 46.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 4.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 56.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,700 6,462 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,599 regulated public water systems in Massachusetts.

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 Monument Mtn Regional Hs water safe to drink? ▼
Monument Mtn Regional Hs (PWS ID: MA1113016) has 151 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,700 people using Groundwater sources.
How many people does Monument Mtn Regional Hs serve? ▼
Monument Mtn Regional Hs serves 1,700 people in Stockbridge, Massachusetts. It is a Local-owned system using Groundwater water sources with 5 service connections.
What type of violations does Monument Mtn Regional Hs have? ▼
Monument Mtn Regional Hs has 151 total violations: 2 health-based violations (MCL exceedances or treatment failures), 133 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Monument Mtn Regional Hs water? ▼
No PFAS testing data is available for Monument Mtn Regional Hs under the EPA's UCMR5 monitoring program.
What water source does Monument Mtn Regional Hs use? ▼
Monument Mtn Regional Hs 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.