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QUARRY HILL SCHOOL

PWS ID: VT0020423 · MIDDLEBURY, Vermont 05753

QUARRY HILL SCHOOL serves 30 people in MIDDLEBURY, Vermont using Groundwater water sources. It has 342 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: QUARRY HILL SCHOOL

QUARRY HILL SCHOOL is a private-owned non-transient non-community water system that delivers drinking water to 30 residents in MIDDLEBURY, Vermont (Addison County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 342 total violations for this system , of which 4 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 338 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 Dinoseb, recorded in 6 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. QUARRY HILL SCHOOL's 342 violations sit above the Vermont average. Statewide, 3 of 37 UCMR5-tested systems have reported PFAS detections (8.1%). 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
30
Total Violations
342
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Addison
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
338
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Dinoseb MR 6 2020
Carbofuran MR 6 2020
LASSO MR 6 2020
2,4,5-TP MR 6 2020
Endrin MR 6 2020
Benzo(a)pyrene MR 6 2020
ETHYLENE DIBROMIDE MR 6 2020
Chlordane MR 6 2020
Arsenic MR 6 2020
Barium MR 6 2020
BHC-GAMMA MR 6 2020
Chromium MR 6 2020
CYANIDE MR 6 2020
Nickel MR 6 2020
Antimony, Total MR 6 2020
Beryllium, Total MR 6 2020
Thallium, Total MR 6 2020
Methoxychlor MR 6 2020
Selenium MR 6 2020
Nitrate MR 6 2020
Toxaphene MR 6 2020
Di(2-ethylhexyl) adipate MR 6 2020
OXAMYL MR 6 2020
Simazine MR 6 2020
Hexachlorocyclopentadiene MR 6 2020
2,4-D MR 6 2020
Atrazine MR 6 2020
Heptachlor epoxide MR 6 2020
Fluoride MR 6 2020
HEXACHLOROBENZENE MR 6 2020

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 QUARRY HILL SCHOOL.

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 VT0020423 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 LEAD AND COPPER RULE REVISIONS TT 4 SDWIS / VT0020423 / 5200
2023 Combined Uranium MR 5 SDWIS / VT0020423 / 4006
2020 Dinoseb MR 6 SDWIS / VT0020423 / 2041
2020 Carbofuran MR 6 SDWIS / VT0020423 / 2046
2020 LASSO MR 6 SDWIS / VT0020423 / 2051
2020 2,4,5-TP MR 6 SDWIS / VT0020423 / 2110
2020 Endrin MR 6 SDWIS / VT0020423 / 2005
2020 Benzo(a)pyrene MR 6 SDWIS / VT0020423 / 2306
2020 ETHYLENE DIBROMIDE MR 6 SDWIS / VT0020423 / 2946
2020 Chlordane MR 6 SDWIS / VT0020423 / 2959
2020 Arsenic MR 6 SDWIS / VT0020423 / 1005
2020 Barium MR 6 SDWIS / VT0020423 / 1010
2020 BHC-GAMMA MR 6 SDWIS / VT0020423 / 2010
2020 Chromium MR 6 SDWIS / VT0020423 / 1020
2020 CYANIDE MR 6 SDWIS / VT0020423 / 1024

How QUARRY HILL SCHOOL Compares

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

Metric QUARRY HILL SCHOOL Vermont avg Federal benchmark
Total violations 342 113.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 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 30 477 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is QUARRY HILL SCHOOL water safe to drink? ▼
QUARRY HILL SCHOOL (PWS ID: VT0020423) has 342 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 30 people using Groundwater sources.
How many people does QUARRY HILL SCHOOL serve? ▼
QUARRY HILL SCHOOL serves 30 people in MIDDLEBURY, Vermont. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does QUARRY HILL SCHOOL have? ▼
QUARRY HILL SCHOOL has 342 total violations: 4 health-based violations (MCL exceedances or treatment failures), 338 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in QUARRY HILL SCHOOL water? ▼
No PFAS testing data is available for QUARRY HILL SCHOOL under the EPA's UCMR5 monitoring program.
What water source does QUARRY HILL SCHOOL use? ▼
QUARRY HILL SCHOOL 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.

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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.

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