PFAS in tap water, Wayne County, Michigan
None of the 41 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.
41 community water systems · 1,772,663 people served · newest sample January 12, 2026
Water systems in Wayne County
| Water system | People served | PFAS-4 at the latest sample | Entry points | Latest sample |
|---|---|---|---|---|
| Detroit City of | 633,218 | below the 3 to 4 ng/L reporting limit | 4 | November 7, 2023 |
| Dearborn | 109,976 | below the 3 to 4 ng/L reporting limit | 1 | May 20, 2025 |
| Canton Township | 99,627 | below the 3 to 4 ng/L reporting limit | 1 | April 30, 2024 |
| Livonia | 96,942 | below the 3 to 4 ng/L reporting limit | 1 | March 3, 2025 |
| Westland | 85,420 | below the 3 to 4 ng/L reporting limit | 1 | September 19, 2024 |
| Taylor | 63,409 | below the 3 to 4 ng/L reporting limit | 1 | June 4, 2024 |
| Dearborn Heights | 57,774 | below the 3 to 4 ng/L reporting limit | 1 | March 13, 2024 |
| Redford Township | 49,504 | below the 3 to 4 ng/L reporting limit | 1 | March 11, 2025 |
| Lincoln Park | 38,144 | below the 3 to 4 ng/L reporting limit | 1 | December 18, 2023 |
| Brownstown Township | 33,194 | below the 3 to 4 ng/L reporting limit | 1 | April 7, 2025 |
| Northville Township | 32,103 | below the 3 to 4 ng/L reporting limit | 1 | July 9, 2025 |
| Southgate | 30,047 | below the 3 to 4 ng/L reporting limit | 1 | February 4, 2025 |
| Hamtramck | 28,433 | below the 3 to 4 ng/L reporting limit | 1 | August 7, 2025 |
| Allen Park | 28,210 | below the 3 to 4 ng/L reporting limit | 1 | October 4, 2023 |
| Garden City | 27,625 | below the 3 to 4 ng/L reporting limit | 1 | October 7, 2024 |
| Plymouth Township | 27,524 | below the 3 to 4 ng/L reporting limit | 1 | March 10, 2025 |
| Van Buren Township | 27,359 | below the 3 to 4 ng/L reporting limit | 1 | July 15, 2024 |
| Wyandotte | 25,883 | below the 3 to 4 ng/L reporting limit | 1 | April 8, 2024 |
| Inkster | 25,076 | below the 3 to 4 ng/L reporting limit | 1 | April 8, 2024 |
| Romulus | 23,989 | below the 3 to 4 ng/L reporting limit | 1 | July 15, 2025 |
| Trenton | 18,544 | below the 3 to 4 ng/L reporting limit | 1 | November 16, 2023 |
| Wayne | 17,713 | below the 3 to 4 ng/L reporting limit | 1 | November 7, 2024 |
| Huron TWP | 16,944 | below the 3 to 4 ng/L reporting limit | 1 | August 5, 2024 |
| Grosse Pointe Woods | 16,135 | below the 3 to 4 ng/L reporting limit | 2 | July 14, 2025 |
| Harper Woods | 14,236 | below the 3 to 4 ng/L reporting limit | 1 | July 11, 2024 |
| Woodhaven | 12,941 | below the 3 to 4 ng/L reporting limit | 1 | July 8, 2024 |
| Melvindale | 12,851 | below the 3 to 4 ng/L reporting limit | 1 | October 7, 2025 |
| Riverview | 12,486 | below the 3 to 4 ng/L reporting limit | 2 | July 10, 2024 |
| Grosse Pointe Park | 11,555 | below the 3 to 4 ng/L reporting limit | 1 | March 14, 2024 |
| Grosse Ile Township | 10,788 | below the 3 to 4 ng/L reporting limit | 1 | January 12, 2026 |
| Flat Rock | 10,541 | below the 3 to 4 ng/L reporting limit | 1 | November 12, 2024 |
| Grosse Pointe Farms | 9,757 | below the 3 to 4 ng/L reporting limit | 1 | October 7, 2024 |
| Sumpter Township | 9,576 | below the 3 to 4 ng/L reporting limit | 1 | November 13, 2023 |
| Ecorse | 9,305 | below the 3 to 4 ng/L reporting limit | 1 | December 4, 2023 |
| Plymouth | 9,132 | below the 3 to 4 ng/L reporting limit | 1 | November 13, 2024 |
| Highland Park | 8,977 | below the 3 to 4 ng/L reporting limit | 1 | January 6, 2025 |
| River Rouge | 7,224 | below the 3 to 4 ng/L reporting limit | 1 | October 14, 2024 |
| Northville | 6,119 | below the 3 to 4 ng/L reporting limit | 1 | October 10, 2023 |
| Grosse Pointe, City of | 5,421 | below the 3 to 4 ng/L reporting limit | 1 | October 10, 2023 |
| Gibraltar | 4,997 | below the 3 to 4 ng/L reporting limit | 1 | November 12, 2025 |
| Belleville | 3,964 | below the 3 to 4 ng/L reporting limit | 1 | October 14, 2025 |
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
- Allen Park
- Belleville
- Dearborn
- Dearborn Heights
- Detroit
- Ecorse
- Flat Rock
- Garden
- Gibraltar
- Grosse Pointe
- Grosse Pointe Farms
- Grosse Pointe Park
- Grosse Pointe Woods
- Hamtramck
- Harper Woods
- Highland Park
- Inkster
- Lincoln Park
- Livonia
- Melvindale
- Northville
- Plymouth
- River Rouge
- Riverview
- Romulus
- Southgate
- Taylor
- Trenton
- Wayne
- Woodhaven
- Wyandotte
ZIP codes in Wayne 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.
- 48101
- 48111
- 48117
- 48120
- 48122
- 48124
- 48125
- 48126
- 48127
- 48128
- 48134
- 48135
- 48138
- 48141
- 48146
- 48150
- 48152
- 48154
- 48164
- 48167
- 48168
- 48170
- 48173
- 48174
- 48180
- 48183
- 48184
- 48185
- 48186
- 48187
- 48188
- 48192
- 48193
- 48195
- 48201
- 48202
- 48203
- 48204
- 48205
- 48206
- 48207
- 48209
- 48210
- 48211
- 48212
- 48213
- 48214
- 48215
- 48216
- 48217
- 48218
- 48219
- 48221
- 48223
- 48224
- 48225
- 48226
- 48227
- 48228
- 48229
- 48230
- 48234
- 48235
- 48236
- 48238
- 48239
- 48240
- 48243
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.