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Community Water System · PWS WI1280112

Palmyra Waterworks

Palmyra, Wisconsin 53156-0380 - drinking water served from groundwater sources to 1,756 people, tracked in EPA SDWIS and UCMR5.

1,756
People served
57
EPA violations
21
Health-based
2 PFAS
UCMR5 result

The verdict

EPA records 57 drinking-water violations at Palmyra Waterworks, 37% of them health-based - above the Wisconsin per-system average, and UCMR5 testing detected 2 PFAS compounds.

57
Total EPA violations on record
37%
Health-based (MCL / treatment failure)
1,756
People served by this system
2
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Palmyra Waterworks

Palmyra Waterworks is a local-owned community water system that delivers drinking water to 1,756 residents in Palmyra, Wisconsin (Jefferson County) through 650 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 57 total violations for this system , of which 21 (37%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 33 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 21 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 2 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 6.2 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Palmyra Waterworks's 57 violations sit above the Wisconsin average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
1,756
Total Violations
57
Health-Based Violations
21
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
650
County
Jefferson
School/Daycare
No
MCL Violations
21
Monitoring Violations
33
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 21 2002
Total Haloacetic Acids (HAA5) MR 9 2020
TTHM MR 9 2020
Revised Total Coliform Rule MON 8 2023
CYANIDE MR 4 1999
Coliform (TCR) MR 3 1992
Consumer Confidence Rule Other 2 2010

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
8:2 FTS 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 5/21/2024 <20.00 ppt 20.00 ppt Not Detected
PFBS 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 5/21/2024 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 5/21/2024 <7.00 ppt 7.00 ppt Not Detected
PFTA 5/21/2024 <8.00 ppt 8.00 ppt Not Detected
PFPeS 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 5/21/2024 3.20 ppt 3.00 ppt Detected
PFNA 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 5/21/2024 6.20 ppt 4.00 ppt Detected
PFHpS 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
6:2 FTS 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFDoA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 5/21/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 5/21/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
ADONA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 5/21/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 5/21/2024 <2.00 ppt 2.00 ppt Not Detected
PFHxA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
NFDHA 5/21/2024 <20.00 ppt 20.00 ppt Not Detected
PFBS 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 5/21/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 5/21/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 5/21/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 5/21/2024 <3.00 ppt 3.00 ppt 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 Palmyra Waterworks.

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 WI1280112 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 Palmyra Waterworks 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
2023 Revised Total Coliform Rule MON 8 SDWIS / WI1280112 / 8000
2020 Total Haloacetic Acids (HAA5) MR 9 SDWIS / WI1280112 / 2456
2020 TTHM MR 9 SDWIS / WI1280112 / 2950
2010 Consumer Confidence Rule Other 2 SDWIS / WI1280112 / 7000
2002 Coliform (TCR) MCL 21 SDWIS / WI1280112 / 3100
1999 CYANIDE MR 4 SDWIS / WI1280112 / 1024
1992 Coliform (TCR) MR 3 SDWIS / WI1280112 / 3100

How Palmyra Waterworks Compares

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

Metric Palmyra Waterworks Wisconsin avg Federal benchmark
Total violations 57 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 21 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection 2 compounds 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,756 467 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 (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 Palmyra Waterworks water safe to drink?
Palmyra Waterworks (PWS ID: WI1280112) has 57 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 2 PFAS compounds found. This system serves 1,756 people using Groundwater sources.
How many people does Palmyra Waterworks serve?
Palmyra Waterworks serves 1,756 people in Palmyra, Wisconsin. It is a Local-owned system using Groundwater water sources with 650 service connections.
What type of violations does Palmyra Waterworks have?
Palmyra Waterworks has 57 total violations: 21 health-based violations (MCL exceedances or treatment failures), 33 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Palmyra Waterworks water?
Yes. UCMR5 testing detected 2 PFAS compounds in Palmyra Waterworks's water supply: PFHxS, PFOS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Palmyra Waterworks use?
Palmyra Waterworks uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
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.