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Community Water System · PWS CT0861051

Mountview Apartments

Monsey, Connecticut 10952 - drinking water served from groundwater sources to 105 people, tracked in EPA SDWIS and UCMR5.

105
People served
285
EPA violations
91
Health-based
Untested
UCMR5 result

The verdict

EPA records 285 drinking-water violations at Mountview Apartments, 32% of them health-based - above the Connecticut per-system average.

285
Total EPA violations on record
32%
Health-based (MCL / treatment failure)
105
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mountview Apartments

Mountview Apartments is a private-owned community water system that delivers drinking water to 105 residents in Monsey, Connecticut (New London County) through 35 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 285 total violations for this system , of which 91 (32%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 144 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 Coliform (TCR), recorded in 52 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 Connecticut, EPA tracks 2,332 public water systems serving 2,886,005 people, with 206,662 cumulative violations and 21,779 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 88.6 violations. Statewide, 40 of 63 UCMR5-tested systems have reported PFAS detections (63.5%).

Mountview Apartments's 285 violations sit above the Connecticut 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
105
Total Violations
285
Health-Based Violations
91
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
35
County
New London
School/Daycare
No
MCL Violations
57
Monitoring Violations
144
Treatment Tech Violations
34

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 52 2012
Lead and Copper Rule MR 44 2024
Consumer Confidence Rule Other 33 2022
Coliform (TCR) MR 28 2013
Lead and Copper Rule TT 14 2014
Revised Total Coliform Rule TT 12 2021
Public Notice Other 11 2023
Revised Total Coliform Rule MON 8 2016
Groundwater Rule TT 7 2023
Revised Total Coliform Rule MCL 5 2016
2,4-D MR 4 1995
1,2-DIBROMO-3-CHLOROPROPANE MR 4 1995
Atrazine MR 4 1995
Carbofuran MR 4 1995
2,4,5-TP MR 4 1995
ETHYLENE DIBROMIDE MR 4 1995
Heptachlor MR 4 1995
BHC-GAMMA MR 4 1995
Methoxychlor MR 4 1995
Toxaphene MR 4 1995
Pentachlorophenol MR 4 1995
E. COLI MR 4 2012
Heptachlor epoxide MR 4 1995
LASSO MR 4 1995
Chlordane MR 4 1995
Total Polychlorinated Biphenyls (PCB) MR 4 1995
LEAD AND COPPER RULE REVISIONS RPT 1 2024
LEAD AND COPPER RULE REVISIONS TT 1 2024

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 Mountview Apartments.

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 CT0861051 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Connecticut Drinking Water Authority

Connecticut'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 CT 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 Lead and Copper Rule MR 44 SDWIS / CT0861051 / 5000
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CT0861051 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CT0861051 / 5200
2023 Public Notice Other 11 SDWIS / CT0861051 / 7500
2023 Groundwater Rule TT 7 SDWIS / CT0861051 / 0700
2022 Consumer Confidence Rule Other 33 SDWIS / CT0861051 / 7000
2021 Revised Total Coliform Rule TT 12 SDWIS / CT0861051 / 8000
2016 Revised Total Coliform Rule MON 8 SDWIS / CT0861051 / 8000
2016 Revised Total Coliform Rule MCL 5 SDWIS / CT0861051 / 8000
2014 Lead and Copper Rule TT 14 SDWIS / CT0861051 / 5000
2013 Coliform (TCR) MR 28 SDWIS / CT0861051 / 3100
2012 Coliform (TCR) MCL 52 SDWIS / CT0861051 / 3100
2012 E. COLI MR 4 SDWIS / CT0861051 / 3014
1995 2,4-D MR 4 SDWIS / CT0861051 / 2105
1995 1,2-DIBROMO-3-CHLOROPROPANE MR 4 SDWIS / CT0861051 / 2931

How Mountview Apartments Compares

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

Metric Mountview Apartments Connecticut avg Federal benchmark
Total violations 285 88.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 91 9.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 63.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 105 1,238 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,332 regulated public water systems in Connecticut.

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 Mountview Apartments water safe to drink? ▼
Mountview Apartments (PWS ID: CT0861051) has 285 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 105 people using Groundwater sources.
How many people does Mountview Apartments serve? ▼
Mountview Apartments serves 105 people in Monsey, Connecticut. It is a Private-owned system using Groundwater water sources with 35 service connections.
What type of violations does Mountview Apartments have? ▼
Mountview Apartments has 285 total violations: 91 health-based violations (MCL exceedances or treatment failures), 144 monitoring/reporting violations, and 34 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mountview Apartments water? ▼
No PFAS testing data is available for Mountview Apartments under the EPA's UCMR5 monitoring program.
What water source does Mountview Apartments use? ▼
Mountview Apartments 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.
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.