State rankings
Michigan water-system rankings
Lowest-scoring systems in Michigan
Ranked lowest score first. Population shown for context.
1 INDEPENDENCE TOWNSHIP CLARKSTON, MI · ~11,790 served 21 2 KALAMAZOO KALAMAZOO, MI · ~192,992 served 67 3 DUNDEE DUNDEE, MI · ~5,400 served 67 4 GLADSTONE GLADSTONE, MI · ~4,632 served 67 5 ST. LUCIE MOBILE VILLAGE COMMERCE TOWNSHIP, MI · ~750 served 72 6 SUNLAKE ESTATES SOUTHFIELD, MI · ~751 served 85 7 RAINBOW RV RESORT SOUTHFIELD, MI · ~750 served 85 8 SUN OUTDOORS ORLANDO CHAMPIONS GATE SOUTHFIELD, MI · ~600 served 85 9 RAILS END TR PK ROCHESTER HILLS, MI · ~150 served 85 10 SPRING LAKE TOWNSHIP SPRING LAKE, MI · ~9,393 served 87 11 GRAND HAVEN GRAND HAVEN, MI · ~10,412 served 88 12 FREMONT FREMONT, MI · ~4,516 served 88 13 OTSEGO OTSEGO, MI · ~4,120 served 92 14 KINROSS TOWNSHIP KINCHELOE, MI · ~5,300 served 93 15 KINGSFORD KINGSFORD, MI · ~5,480 served 96 16 WATERFORD TOWNSHIP WATERFORD, MI · ~73,441 served 98 17 SOUTH LYON, CITY OF SOUTH LYON, MI · ~11,055 served 99 18 NEGAUNEE/ISHPEMING WATER AUTHORITY ISHPEMING, MI 100 19 SOUTHEASTERN OAKLAND CO W AUTH ROYAL OAK, MI 100 20 HURON REGIONAL WATER AUTHORITY BAD AXE, MI 100 21 GRATIOT AREA WATER AUTHORITY ST. LOUIS, MI 100 22 GREAT LAKES WATER AUTHORITY DETROIT, MI 100 23 BAY AREA WATER SYSTEM BAY CITY, MI 100 24 DETROIT CITY OF DETROIT, MI · ~633,218 served 100 25 GRAND RAPIDS GRAND RAPIDS, MI · ~306,901 served 100
Highest-scoring large systems in Michigan
Systems serving 10,000+ people with the best scores.
1 DETROIT CITY OF DETROIT, MI · ~633,218 served 100 2 GRAND RAPIDS GRAND RAPIDS, MI · ~306,901 served 100 3 LANSING BOARD OF WATER & LIGHT LANSING, MI · ~166,000 served 100 4 WARREN, CITY OF WARREN, MI · ~134,056 served 100 5 STERLING HEIGHTS, CITY OF STERLING HEIGHTS, MI · ~127,000 served 100 6 ANN ARBOR ANN ARBOR, MI · ~123,851 served 100 7 DEARBORN DEARBORN, MI · ~109,976 served 100 8 CLINTON TOWNSHIP CLINTON TOWNSHIP, MI · ~100,513 served 100
Scores reflect EPA public records (violations, enforcement, PFAS), are system-level, and can’t account for your home’s plumbing. See the methodology.