County · Michigan
Houghton County, Michigan: drinking water records
This overview covers 18 ZIP codes and 18 community water systems in Houghton County. It also stands in for 9 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Houghton MI0003230 | 8,386 | 60 | 0 | 0 | 5.5 ppb |
| Upper Michigan Water Company MI0004800 | 5,535 | 60 | 0 | 0 | 1.6 ppb |
| Hancock MI0002980 | 4,500 | 60 | 0 | 0 | 1.1 ppb |
| Lake Linden MI0003720 | 1,203 | 0 | 0 | 1 | 1.3 ppb |
| Franklin-Quincy Water Authority MI0005585 | 260 | 60 | 0 | 0 | 0.1 ppb |
| Laurium MI0003810 | 1,947 | 0 | 0 | 0 | 0 ppb |
| Osceola Township MI0001840 | 1,391 | 0 | 0 | 0 | 3.6 ppb |
| Marsh Run Mobile Home Park VA6061150 | 1,250 | 0 | 0 | 0 | 0.5 ppb |
| Portage Township MI0003330 | 1,214 | 0 | 0 | 0 | 2.1 ppb |
| Torch Lake Township MI0003270 | 946 | 0 | 0 | 0 | 0.7 ppb |
| Chassell Township MI0001350 | 800 | 0 | 0 | 0 | 1.3 ppb |
| South Range MI0006120 | 745 | 0 | 0 | 0 | 0.9 ppb |
| Calumet MI0001040 | 726 | 0 | 0 | 0 | 0.5 ppb |
| Franklin Township MI0005680 | 300 | 0 | 0 | 0 | 1.8 ppb |
| Copper City MI0001620 | 210 | 0 | 0 | 0 | 0.4 ppb |
| Calumet Township MI0001046 | 50 | 0 | 0 | 0 | 4.6 ppb |
| Houghton Co Memorial Airport MI0003235 | 50 | 0 | 0 | 0 | 0 ppb |
| Adams Township MI0000020 | 2,010 | 0 | 0 | 0 | not reported |
ZIP reports in Houghton County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 49905, 49922, 49942, 49952, 49955, 49958, 49961, 49965, 49967.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.