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Non-Transient Non-Community Water System · PWS MA2147009

Koch Rt2 Toyota / Mysa

Lancaster, Massachusetts 01523 - drinking water served from groundwater sources to 50 people, tracked in EPA SDWIS and UCMR5.

50
People served
39
EPA violations
11
Health-based
Untested
UCMR5 result

The verdict

EPA records 39 drinking-water violations at Koch Rt2 Toyota / Mysa, 28% of them health-based - below the Massachusetts per-system average.

39
Total EPA violations on record
28%
Health-based (MCL / treatment failure)
50
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Koch Rt2 Toyota / Mysa

Koch Rt2 Toyota / Mysa is a private-owned non-transient non-community water system that delivers drinking water to 50 residents in Lancaster, Massachusetts (Worcester County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 39 total violations for this system , of which 11 (28%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 22 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 Arsenic, recorded in 10 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 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, 143 of 263 UCMR5-tested systems have reported PFAS detections (54.4%).

Koch Rt2 Toyota / Mysa's 39 violations sit below 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
50
Total Violations
39
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
2
County
Worcester
School/Daycare
No
MCL Violations
10
Monitoring Violations
22
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 10 2020
Revised Total Coliform Rule MON 8 2020
Lead and Copper Rule MR 2 2007
Beryllium, Total MR 1 2017
Revised Total Coliform Rule TT 1 2022
Mercury MR 1 2017
Selenium MR 1 2017
Barium MR 1 2017
Cadmium MR 1 2017
Thallium, Total MR 1 2017
Chromium MR 1 2017
CYANIDE MR 1 2017
Antimony, Total MR 1 2017
Fluoride MR 1 2017
Nickel MR 1 2017
Arsenic MR 1 2017

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 Koch Rt2 Toyota / Mysa.

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 MA2147009 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 Koch Rt2 Toyota / Mysa 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
2022 Revised Total Coliform Rule TT 1 SDWIS / MA2147009 / 8000
2020 Arsenic MCL 10 SDWIS / MA2147009 / 1005
2020 Revised Total Coliform Rule MON 8 SDWIS / MA2147009 / 8000
2017 Beryllium, Total MR 1 SDWIS / MA2147009 / 1075
2017 Mercury MR 1 SDWIS / MA2147009 / 1035
2017 Selenium MR 1 SDWIS / MA2147009 / 1045
2017 Barium MR 1 SDWIS / MA2147009 / 1010
2017 Cadmium MR 1 SDWIS / MA2147009 / 1015
2017 Thallium, Total MR 1 SDWIS / MA2147009 / 1085
2017 Chromium MR 1 SDWIS / MA2147009 / 1020
2017 CYANIDE MR 1 SDWIS / MA2147009 / 1024
2017 Antimony, Total MR 1 SDWIS / MA2147009 / 1074
2017 Fluoride MR 1 SDWIS / MA2147009 / 1025
2017 Nickel MR 1 SDWIS / MA2147009 / 1036
2017 Arsenic MR 1 SDWIS / MA2147009 / 1005

How Koch Rt2 Toyota / Mysa Compares

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

Metric Koch Rt2 Toyota / Mysa Massachusetts avg Federal benchmark
Total violations 39 46.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 11 4.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 54.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 50 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 Koch Rt2 Toyota / Mysa water safe to drink? ▼
Koch Rt2 Toyota / Mysa (PWS ID: MA2147009) has 39 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 50 people using Groundwater sources.
How many people does Koch Rt2 Toyota / Mysa serve? ▼
Koch Rt2 Toyota / Mysa serves 50 people in Lancaster, Massachusetts. It is a Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does Koch Rt2 Toyota / Mysa have? ▼
Koch Rt2 Toyota / Mysa has 39 total violations: 11 health-based violations (MCL exceedances or treatment failures), 22 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Koch Rt2 Toyota / Mysa water? ▼
No PFAS testing data is available for Koch Rt2 Toyota / Mysa under the EPA's UCMR5 monitoring program.
What water source does Koch Rt2 Toyota / Mysa use? ▼
Koch Rt2 Toyota / Mysa 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.