PlainWater
States → Connecticut

MIDDLEBURY HAMLET

PWS ID: CT0810054 · PROSPECT, Connecticut 06712

MIDDLEBURY HAMLET serves 75 people in PROSPECT, Connecticut using Groundwater water sources. It has 110 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MIDDLEBURY HAMLET

MIDDLEBURY HAMLET is a private-owned non-transient non-community water system that delivers drinking water to 75 residents in PROSPECT, Connecticut (New Haven County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 110 total violations for this system , of which 4 (4%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 104 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 16 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. MIDDLEBURY HAMLET's 110 violations sit above the Connecticut average. Statewide, 40 of 63 UCMR5-tested systems have reported PFAS detections (63.5%). 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
75
Total Violations
110
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
New Haven
School/Daycare
No
MCL Violations
4
Monitoring Violations
104
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 16 2016
Coliform (TCR) MCL 4 2005
Public Notice Other 2 2006
Lead and Copper Rule MR 2 2010
Barium MR 2 2014
Cadmium MR 2 2014
Chromium MR 2 2014
Fluoride MR 2 2014
Mercury MR 2 2014
Nickel MR 2 2014
Antimony, Total MR 2 2014
Beryllium, Total MR 2 2014
Thallium, Total MR 2 2014
Selenium MR 2 2014
Methoxychlor MR 2 2014
Toxaphene MR 2 2014
Dalapon MR 2 2014
Glyphosate MR 2 2014
Di(2-ethylhexyl) adipate MR 2 2014
Simazine MR 2 2014
Picloram MR 2 2014
Aldicarb sulfone MR 2 2014
2,4-D MR 2 2014
HEXACHLOROBENZENE MR 2 2014
Benzo(a)pyrene MR 2 2014
Pentachlorophenol MR 2 2014
Total Polychlorinated Biphenyls (PCB) MR 2 2014
ETHYLENE DIBROMIDE MR 2 2014
Chlordane MR 2 2014
Aldicarb MR 2 2014

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFDoA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 8/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/6/2025 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 8/6/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFBA 8/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/6/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 8/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/6/2025 <9 µg/L 9 µg/L Not Detected
PFNA 8/6/2025 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/6/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/6/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/6/2025 <0.006 µg/L 0.006 µg/L Not Detected
4:2 FTS 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 2/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 2/4/2025 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 2/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 2/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 2/4/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 2/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 2/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 2/4/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 2/4/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 2/4/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 2/4/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 2/4/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFNA 2/4/2025 <0.004 µg/L 0.004 µg/L Not Detected

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 MIDDLEBURY HAMLET.

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 CT0810054 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
2016 Coliform (TCR) MR 16 SDWIS / CT0810054 / 3100
2014 Barium MR 2 SDWIS / CT0810054 / 1010
2014 Cadmium MR 2 SDWIS / CT0810054 / 1015
2014 Chromium MR 2 SDWIS / CT0810054 / 1020
2014 Fluoride MR 2 SDWIS / CT0810054 / 1025
2014 Mercury MR 2 SDWIS / CT0810054 / 1035
2014 Nickel MR 2 SDWIS / CT0810054 / 1036
2014 Antimony, Total MR 2 SDWIS / CT0810054 / 1074
2014 Beryllium, Total MR 2 SDWIS / CT0810054 / 1075
2014 Thallium, Total MR 2 SDWIS / CT0810054 / 1085
2014 Selenium MR 2 SDWIS / CT0810054 / 1045
2014 Methoxychlor MR 2 SDWIS / CT0810054 / 2015
2014 Toxaphene MR 2 SDWIS / CT0810054 / 2020
2014 Dalapon MR 2 SDWIS / CT0810054 / 2031
2014 Glyphosate MR 2 SDWIS / CT0810054 / 2034

How MIDDLEBURY HAMLET Compares

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

Metric MIDDLEBURY HAMLET Connecticut avg Federal benchmark
Total violations 110 88.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 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 75 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is MIDDLEBURY HAMLET water safe to drink? ▼
MIDDLEBURY HAMLET (PWS ID: CT0810054) has 110 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 75 people using Groundwater sources.
How many people does MIDDLEBURY HAMLET serve? ▼
MIDDLEBURY HAMLET serves 75 people in PROSPECT, Connecticut. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does MIDDLEBURY HAMLET have? ▼
MIDDLEBURY HAMLET has 110 total violations: 4 health-based violations (MCL exceedances or treatment failures), 104 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MIDDLEBURY HAMLET water? ▼
No. MIDDLEBURY HAMLET was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does MIDDLEBURY HAMLET use? ▼
MIDDLEBURY HAMLET 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.

Explore PlainWater

Water in Connecticut

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Connecticut

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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