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LITCHFIELD MONTESSORI SCHOOL

PWS ID: CT0745103 · NORTHFIELD, Connecticut 06778

LITCHFIELD MONTESSORI SCHOOL serves 120 people in NORTHFIELD, Connecticut using Groundwater water sources. It has 147 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LITCHFIELD MONTESSORI SCHOOL

LITCHFIELD MONTESSORI SCHOOL is a private-owned non-transient non-community water system that delivers drinking water to 120 residents in NORTHFIELD, Connecticut (Litchfield County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 147 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 108 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 7 violations (MON). 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. LITCHFIELD MONTESSORI SCHOOL's 147 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
120
Total Violations
147
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Litchfield
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
108
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 7 2022
Lead and Copper Rule MR 4 2016
Thallium, Total MR 4 2019
Beryllium, Total MR 4 2019
Antimony, Total MR 4 2019
Nickel MR 4 2019
Chromium MR 4 2019
Cadmium MR 4 2019
Arsenic MR 4 2019
Barium MR 4 2019
BHC-GAMMA MR 2 2011
Methoxychlor MR 2 2011
Toxaphene MR 2 2011
Aldicarb sulfoxide MR 2 2011
Aldicarb sulfone MR 2 2011
Carbofuran MR 2 2011
2,4-D MR 2 2011
2,4,5-TP MR 2 2011
Pentachlorophenol MR 2 2011
Total Polychlorinated Biphenyls (PCB) MR 2 2011
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2011
Dalapon MR 2 2011
Diquat MR 2 2011
Glyphosate MR 2 2011
Di(2-ethylhexyl) adipate MR 2 2011
OXAMYL MR 2 2011
Di(2-ethylhexyl) phthalate MR 2 2011
Dinoseb MR 2 2011
Hexachlorocyclopentadiene MR 2 2011
Selenium MR 2 2019

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 LITCHFIELD MONTESSORI 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 CT0745103 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
2022 Revised Total Coliform Rule MON 7 SDWIS / CT0745103 / 8000
2019 Thallium, Total MR 4 SDWIS / CT0745103 / 1085
2019 Beryllium, Total MR 4 SDWIS / CT0745103 / 1075
2019 Antimony, Total MR 4 SDWIS / CT0745103 / 1074
2019 Nickel MR 4 SDWIS / CT0745103 / 1036
2019 Chromium MR 4 SDWIS / CT0745103 / 1020
2019 Cadmium MR 4 SDWIS / CT0745103 / 1015
2019 Arsenic MR 4 SDWIS / CT0745103 / 1005
2019 Barium MR 4 SDWIS / CT0745103 / 1010
2019 Selenium MR 2 SDWIS / CT0745103 / 1045
2016 Lead and Copper Rule MR 4 SDWIS / CT0745103 / 5000
2012 Coliform (TCR) MR 1 SDWIS / CT0745103 / 3100
2011 BHC-GAMMA MR 2 SDWIS / CT0745103 / 2010
2011 Methoxychlor MR 2 SDWIS / CT0745103 / 2015
2011 Toxaphene MR 2 SDWIS / CT0745103 / 2020

How LITCHFIELD MONTESSORI SCHOOL Compares

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

Metric LITCHFIELD MONTESSORI SCHOOL Connecticut avg Federal benchmark
Total violations 147 88.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 120 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 LITCHFIELD MONTESSORI SCHOOL water safe to drink? ▼
LITCHFIELD MONTESSORI SCHOOL (PWS ID: CT0745103) has 147 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 120 people using Groundwater sources.
How many people does LITCHFIELD MONTESSORI SCHOOL serve? ▼
LITCHFIELD MONTESSORI SCHOOL serves 120 people in NORTHFIELD, Connecticut. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does LITCHFIELD MONTESSORI SCHOOL have? ▼
LITCHFIELD MONTESSORI SCHOOL has 147 total violations: 0 health-based violations (MCL exceedances or treatment failures), 108 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LITCHFIELD MONTESSORI SCHOOL water? ▼
No PFAS testing data is available for LITCHFIELD MONTESSORI SCHOOL under the EPA's UCMR5 monitoring program.
What water source does LITCHFIELD MONTESSORI SCHOOL use? ▼
LITCHFIELD MONTESSORI 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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