EPA data as of Oct 2026 · page updated 2026-10-29

Friesland Waterworks

Friesland Waterworks (EPA ID WI1110099) in Friesland, WI supplies groundwater (wells) to about 345 people: 3 violations since 2016, latest lead result 0 ppb, PFAS not tested.

Service area

EPA service-area boundary (state-supplied or EPA-modeled)
Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

System facts

People served345
Connections127
Sourcegroundwater (wells)
WholesalerNo

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Groundwater Rule2
Lead and Copper Rule1

A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Nov 2020.

Lead

Jul 20230 ppb
Jan 20230 ppb
Jan 20220.8 ppb
Jul 2020106.3 ppb
Jun 20170.6 ppb
Jun 20141.7 ppb
Jan 20082.1 ppb
Jan 20054 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

ZIP codes served

ZIP codes whose center lies in this system’s service area.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

Has Friesland Waterworks had drinking water violations?

Health-based violations since 2016: Groundwater Rule, Lead and Copper Rule. All are listed as resolved.

What is the lead level in Friesland Waterworks water?

The latest 90th-percentile lead result (Jul 2023) was 0 ppb. EPA’s action level is 15 ppb (10 ppb from 2027).

Does Friesland Waterworks have PFAS in its water?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).