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MAINE ELEMENTARY SCHOOL

PWS ID: WI7370467 · WAUSAU, Wisconsin 54402-0359

MAINE ELEMENTARY SCHOOL serves 255 people in WAUSAU, Wisconsin using Groundwater water sources. It has 506 recorded EPA violations, including 9 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MAINE ELEMENTARY SCHOOL

MAINE ELEMENTARY SCHOOL is a local-owned non-transient non-community water system that delivers drinking water to 255 residents in WAUSAU, Wisconsin (Marathon County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 506 total violations for this system , of which 9 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 488 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 26 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 Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. MAINE ELEMENTARY SCHOOL's 506 violations sit above the Wisconsin average. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%). 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
255
Total Violations
506
Health-Based Violations
9
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Marathon
School/Daycare
Yes
MCL Violations
9
Monitoring Violations
488
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 26 2013
Lead and Copper Rule MR 18 2025
Carbofuran MR 10 1995
Aldicarb sulfone MR 10 1995
Aldicarb sulfoxide MR 10 1995
Hexachlorocyclopentadiene MR 10 1995
Dinoseb MR 10 1995
Atrazine MR 10 1995
Simazine MR 10 1995
OXAMYL MR 10 1995
BHC-GAMMA MR 10 1995
Total Polychlorinated Biphenyls (PCB) MR 10 1995
2,4-D MR 10 1995
2,4,5-TP MR 10 1995
Pentachlorophenol MR 10 1995
Picloram MR 10 1995
Heptachlor epoxide MR 10 1995
Aldicarb MR 10 1995
Toxaphene MR 10 1995
Chlordane MR 10 1995
Heptachlor MR 10 1995
Methoxychlor MR 10 1995
Dalapon MR 10 1995
LASSO MR 10 1995
HEXACHLOROBENZENE MR 10 1995
Endrin MR 10 1995
Public Notice Other 9 2013
Nitrate MR 9 1997
Barium MR 6 1995
Nitrate-Nitrite MR 6 1995

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 MAINE ELEMENTARY 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 WI7370467 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Wisconsin Drinking Water Authority

Wisconsin DNR — Drinking Water and Groundwater is the primacy agency that licenses and inspects MAINE ELEMENTARY SCHOOL under EPA-delegated authority.

Open WI regulator portal

Source: Wisconsin DNR — Drinking Water and Groundwater

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
2025 Lead and Copper Rule MR 18 SDWIS / WI7370467 / 5000
2017 Nitrate MCL 4 SDWIS / WI7370467 / 1040
2013 Coliform (TCR) MR 26 SDWIS / WI7370467 / 3100
2013 Public Notice Other 9 SDWIS / WI7370467 / 7500
2001 Di(2-ethylhexyl) phthalate MR 3 SDWIS / WI7370467 / 2039
2001 Di(2-ethylhexyl) adipate MR 3 SDWIS / WI7370467 / 2035
2001 2,3,7,8-TCDD MR 3 SDWIS / WI7370467 / 2063
2001 ETHYLENE DIBROMIDE MR 3 SDWIS / WI7370467 / 2946
2001 1,2-DIBROMO-3-CHLOROPROPANE MR 3 SDWIS / WI7370467 / 2931
1999 Coliform (TCR) MCL 5 SDWIS / WI7370467 / 3100
1997 Nitrate MR 9 SDWIS / WI7370467 / 1040
1997 Vinyl chloride MR 6 SDWIS / WI7370467 / 2976
1997 1,1,1-Trichloroethane MR 6 SDWIS / WI7370467 / 2981
1997 Ethylbenzene MR 6 SDWIS / WI7370467 / 2992
1997 o-Dichlorobenzene MR 6 SDWIS / WI7370467 / 2968

How MAINE ELEMENTARY SCHOOL Compares

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

Metric MAINE ELEMENTARY SCHOOL Wisconsin avg Federal benchmark
Total violations 506 26 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 9 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 255 467 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,988 regulated public water systems in Wisconsin.

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 MAINE ELEMENTARY SCHOOL water safe to drink? ▼
MAINE ELEMENTARY SCHOOL (PWS ID: WI7370467) has 506 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 255 people using Groundwater sources.
How many people does MAINE ELEMENTARY SCHOOL serve? ▼
MAINE ELEMENTARY SCHOOL serves 255 people in WAUSAU, Wisconsin. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does MAINE ELEMENTARY SCHOOL have? ▼
MAINE ELEMENTARY SCHOOL has 506 total violations: 9 health-based violations (MCL exceedances or treatment failures), 488 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MAINE ELEMENTARY SCHOOL water? ▼
No PFAS testing data is available for MAINE ELEMENTARY SCHOOL under the EPA's UCMR5 monitoring program.
What water source does MAINE ELEMENTARY SCHOOL use? ▼
MAINE ELEMENTARY 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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