PFAS in tap water, Ottawa County, Michigan
None of the 11 water systems had a PFAS-4 compound above the 3 to 4 ng/L reporting limits at the latest sample. That's below the lab limit, not zero. 2 had PFOA or PFOS above the 4 ng/L federal MCL in at least one sample.
11 community water systems · 195,339 people served · newest sample October 13, 2025
Water systems in Ottawa County
| Water system | People served | PFAS-4 at the latest sample | Entry points | Latest sample |
|---|---|---|---|---|
| Holland Board of Public Works | 49,687 | below the 3 to 4 ng/L reporting limit | 1 | April 22, 2025 |
| Georgetown Township | 41,086 | below the 3 to 4 ng/L reporting limit | 1 | September 9, 2024 |
| Holland Township Consolidated | 26,100 | below the 3 to 4 ng/L reporting limit | 1 | July 10, 2024 |
| Allendale Township | 19,725 | below the 3 to 4 ng/L reporting limit | 1 | May 22, 2024 |
| Grand Haven Township | 15,051 | below the 3 to 4 ng/L reporting limit | 2 | February 13, 2024 |
| Grand Haven | 10,412 | below the 3 to 4 ng/L reporting limit above the 2029 federal MCL in an earlier sample | 1 | August 6, 2025 |
| Spring Lake Township | 9,393 | below the 3 to 4 ng/L reporting limit above the 2029 federal MCL in an earlier sample | 1 | October 13, 2025 |
| Zeeland Board of Public Works | 8,328 | below the 3 to 4 ng/L reporting limit | 1 | October 26, 2023 |
| Hudsonville | 7,708 | below the 3 to 4 ng/L reporting limit | 1 | October 9, 2023 |
| Coopersville | 4,519 | below the 3 to 4 ng/L reporting limit | 1 | December 10, 2024 |
| Jamestown Township | 3,330 | below the 3 to 4 ng/L reporting limit | 1 | November 14, 2023 |
| Park Township (Hbpw Service Area) community water system | 10,700 | monitored under UCMR 5, no page | ||
1 system without a page is not a community water system (schools, workplaces, campgrounds). Nobody's home tap water.
Not sure which one is yours? The systems report their own service areas to EPA. Check your water bill or your utility's Consumer Confidence Report.
Cities and towns
ZIP codes in Ottawa County
Census ZIP code tabulation areas that overlap the county. A ZIP served by one system opens that system's page; a ZIP shared by several systems lists them.
How to read these numbers
We compare PFAS-4 (PFOA + PFOS + PFNA + PFHxS) with this site's 0.5 ng/L benchmark, the same line as on the European pages. UCMR 5 reporting limits are 3 to 4 ng/L. So any quantified PFAS-4 compound is above the benchmark, and a clean result reads "below the 3 to 4 ng/L reporting limit", never zero. The US legal limit is the 4 ng/L federal MCL for PFOA and PFOS, which systems must meet from April 26, 2029 ("above the 2029 federal MCL").
EPA: "UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards". Samples are taken where water enters the distribution system, not at your tap. A system may have changed sources or added treatment since. Source: U.S. Environmental Protection Agency (EPA), Office of Water, PFAS National Primary Drinking Water Regulation (NPDWR). Regulation details retrieved September 19, 2026. Every system page tracks the 2029 compliance date and the proposed rescission of the PFHxS, PFNA, HFPO-DA and Hazard Index limits.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.