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SANILAC ISD

PWS ID: MI2003376 · PECK, Michigan 48466

SANILAC ISD serves 650 people in PECK, Michigan using Groundwater water sources. It has 69 recorded EPA violations, including 11 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SANILAC ISD

SANILAC ISD is a private-owned non-transient non-community water system that delivers drinking water to 650 residents in PECK, Michigan (Sanilac County) through 3 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 69 total violations for this system , of which 11 (16%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 53 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 7 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 Michigan, EPA tracks 10,959 public water systems serving 9,098,093 people, with 255,201 cumulative violations and 31,467 health-based violations on record. About 86% of systems in the state carry at least one violation, and state-wide the average per system is 23.3 violations. SANILAC ISD's 69 violations sit above the Michigan average. Statewide, 87 of 318 UCMR5-tested systems have reported PFAS detections (27.4%). 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
650
Total Violations
69
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
3
County
Sanilac
School/Daycare
Yes
MCL Violations
11
Monitoring Violations
53
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MR 7 2015
Coliform (TCR) MCL 7 1995
Arsenic MCL 4 2018
Nitrate MR 3 2006
Lead and Copper Rule MR 2 2021
Endrin MR 2 2005
Methoxychlor MR 2 2005
Toxaphene MR 2 2005
OXAMYL MR 2 2005
Simazine MR 2 2005
Picloram MR 2 2005
Carbofuran MR 2 2005
Atrazine MR 2 2005
LASSO MR 2 2005
Heptachlor MR 2 2005
2,4-D MR 2 2005
2,4,5-TP MR 2 2005
HEXACHLOROBENZENE MR 2 2005
Pentachlorophenol MR 2 2005
Total Polychlorinated Biphenyls (PCB) MR 2 2005
Chlordane MR 2 2005
BHC-GAMMA MR 2 2005
Dinoseb MR 2 2005
Hexachlorocyclopentadiene MR 2 2005
Heptachlor epoxide MR 2 2005
Revised Total Coliform Rule MON 1 2022

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

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

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 MI2003376 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Michigan Drinking Water Authority

Michigan EGLE — Drinking Water and Environmental Health Division is the primacy agency that licenses and inspects SANILAC ISD under EPA-delegated authority.

Open MI regulator portal

Source: Michigan EGLE — Drinking Water and Environmental Health Division

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 1 SDWIS / MI2003376 / 8000
2021 Lead and Copper Rule MR 2 SDWIS / MI2003376 / 5000
2018 Arsenic MCL 4 SDWIS / MI2003376 / 1005
2015 Arsenic MR 7 SDWIS / MI2003376 / 1005
2006 Nitrate MR 3 SDWIS / MI2003376 / 1040
2005 Endrin MR 2 SDWIS / MI2003376 / 2005
2005 Methoxychlor MR 2 SDWIS / MI2003376 / 2015
2005 Toxaphene MR 2 SDWIS / MI2003376 / 2020
2005 OXAMYL MR 2 SDWIS / MI2003376 / 2036
2005 Simazine MR 2 SDWIS / MI2003376 / 2037
2005 Picloram MR 2 SDWIS / MI2003376 / 2040
2005 Carbofuran MR 2 SDWIS / MI2003376 / 2046
2005 Atrazine MR 2 SDWIS / MI2003376 / 2050
2005 LASSO MR 2 SDWIS / MI2003376 / 2051
2005 Heptachlor MR 2 SDWIS / MI2003376 / 2065

How SANILAC ISD Compares

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

Metric SANILAC ISD Michigan avg Federal benchmark
Total violations 69 23.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 11 2.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 27.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 650 830 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,959 regulated public water systems in Michigan.

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 SANILAC ISD water safe to drink? ▼
SANILAC ISD (PWS ID: MI2003376) has 69 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 650 people using Groundwater sources.
How many people does SANILAC ISD serve? ▼
SANILAC ISD serves 650 people in PECK, Michigan. It is a Private-owned system using Groundwater water sources with 3 service connections.
What type of violations does SANILAC ISD have? ▼
SANILAC ISD has 69 total violations: 11 health-based violations (MCL exceedances or treatment failures), 53 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SANILAC ISD water? ▼
No. SANILAC ISD was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does SANILAC ISD use? ▼
SANILAC ISD 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. 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.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial