Tap Truth EPA drinking water records, in plain English

County drinking water records

Oakland County, MI drinking water systems

94 community water systems serve Oakland County, MI, reporting 1,071,969 people served in all. A system that also serves other counties counts all of its customers here.

13 of them (14%) had at least one health-based violation in the last 10 years. 8 systems still have one unresolved.

59 rely mainly on groundwater and 35 on surface water, counting water bought from other systems.

92 systems filed a lead service line inventory listing 3,896 lead lines, 2,082 galvanized lines that must be replaced and 39,503 lines of unknown material.

17 more systems are placed in Oakland County, MI by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
94
People served, sum of each system's own figure
1,071,969
Systems with a health-based violation, last 10 years
13
Systems with one unresolved
8
Lead service lines in inventories
3,896

Water systems serving Oakland County

94 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Troy Troy 85,854 Purchased surface water 0 0 0
Rochester Hills Rochester Hills 74,000 Purchased surface water 0 0 0
Waterford Township Outside cities and towns 73,441 Groundwater 1 0 1
Southfield Southfield and Lathrup Village 71,739 Purchased surface water 0 0 1
Pontiac Pontiac 63,776 Purchased surface water 0 0 101
City of Royal Oak Royal Oak 57,236 Purchased surface water 0 0 879
City of Farmington Hills Farmington Hills 56,984 Purchased surface water 0 0 0
City of Novi Novi 56,780 Purchased surface water 0 0 0
West Bloomfield Township Outside cities and towns 49,479 Purchased surface water 0 0 0
Bloomfield Township Outside cities and towns 41,691 Purchased surface water 0 0 0
Orion Township Outside cities and towns 33,000 Purchased surface water 0 0 0
Northville Township Novi and Northville and land outside them 32,103 Purchased surface water 0 0 0
Madison Heights Madison Heights 29,694 Purchased surface water 0 0 232
Oak Park Oak Park 29,654 Purchased surface water 0 0 0
Ferndale Ferndale 22,105 Purchased surface water 1 0 595
Auburn Hills Auburn Hills 21,412 Purchased surface water 0 0 0
Birmingham Birmingham and Bloomfield Hills 20,472 Purchased surface water 2 1 153
Commerce Township Outside cities and towns 19,811 Purchased surface water 0 0 0
Hazel Park Hazel Park 16,400 Purchased surface water 0 0 568
Berkley Berkley 14,970 Purchased surface water 0 0 97
City of Wixom Wixom 13,928 Purchased surface water 0 0 0
Clawson Clawson 11,825 Purchased surface water 0 0 561
Independence Township Village of Clarkston and land outside it 11,790 Groundwater 0 0 0
City of Farmington Farmington 11,597 Purchased surface water 0 0 0
City of South Lyon South Lyon and land outside it 11,055 Groundwater 0 0 2
Beverly Hills Beverly Hills 10,451 Purchased surface water 0 0 0
Oxford Township Outside cities and towns 10,407 Groundwater 0 0 0
Lyon Township Outside cities and towns 9,390 Groundwater 0 1 3
Village of Holly Holly 8,557 Groundwater 1 4 No inventory
Rochester Rochester 7,130 Groundwater 0 0 0
Village of Milford Milford 6,366 Groundwater 0 0 1
Huntington Woods Huntington Woods 6,200 Purchased surface water 0 0 0
White Lake Township Outside cities and towns 5,799 Groundwater 0 0 0
City of Walled Lake Walled Lake 5,260 Purchased surface water 0 0 0
Rochester East Rochester 5,100 Purchased surface water 0 0 0
Southwest Oakland Township Outside cities and towns 4,943 Groundwater 0 0 0
Lathrup Village Lathrup Village 4,075 Purchased surface water 0 0 1
Highland Township Outside cities and towns 3,837 Groundwater 0 0 0
Bloomfield Hills Bloomfield Hills 3,579 Purchased surface water 0 0 0
Village of Oxford Oxford 3,540 Groundwater 0 0 0
Springs/Portsmouth Apartments Wixom 3,200 Groundwater 0 0 0
Village of Lake Orion Lake Orion 2,973 Purchased surface water 0 0 33
Pleasant Ridge Pleasant Ridge 2,872 Purchased surface water 0 0 646
City of Keego Harbor Keego Harbor 2,740 Purchased surface water 0 0 0
Highland Greens Estates Outside cities and towns 2,268 Groundwater 0 0 0
Orchard Lake Village Orchard Lake Village 2,194 Purchased surface water 0 0 0
Sylvan Lake Sylvan Lake 2,155 Purchased surface water 0 0 0
Southeast Oakland Township Outside cities and towns 1,923 Groundwater 0 0 0
Royal Oak Township Outside cities and towns 1,869 Purchased surface water 0 0 7
Deerwood Subdivision Village of Clarkston and land outside it 1,824 Groundwater 0 0 0
Cedarbrook Estates Outside cities and towns 1,728 Groundwater 0 0 0
Childs Lake Estates MHC Outside cities and towns 1,548 Groundwater 0 0 0
Oak Hill Estates MHC Outside cities and towns 1,260 Groundwater 0 0 0
Clarkston Lake Estates Outside cities and towns 1,245 Groundwater 0 0 0
Wynstone Subdivision Outside cities and towns 1,146 Groundwater 0 0 0
Springrove MHC Outside cities and towns 1,060 Groundwater 1 0 0
Meadow Lake Estates MHC Outside cities and towns 1,060 Groundwater 0 0 0
Orion Lake Estates MHC Outside cities and towns 1,058 Groundwater 0 0 0
Ridgewood Mobile Home Park Inc Outside cities and towns 1,030 Groundwater 0 0 0
Bingham Farms Bingham Farms 898 Purchased surface water 0 0 0
Cranberry Lake MHC Outside cities and towns 820 Groundwater 0 0 0
Cass Lakeside Subdivision Outside cities and towns 700 Groundwater 1 0 15
Hidden Lake Estates Outside cities and towns 673 Groundwater 0 0 0
Oakland Hunt Subdivision Outside cities and towns 671 Groundwater 0 0 0
Woodlands MHC Outside cities and towns 650 Groundwater 0 0 0
Laguna Vista Subdivision Wolverine Lake and land outside it 640 Groundwater 0 0 0
Twin Lakes Subdivision Outside cities and towns 602 Groundwater 0 0 0
Ridge Valley of Milford Outside cities and towns 512 Groundwater 0 0 0
Briarcliff Homeowners Assn Outside cities and towns 483 Groundwater 0 0 0
Groveland Manor Outside cities and towns 435 Groundwater 1 0 0
Fsi Holly Hills Property LLC Outside cities and towns 435 Groundwater 1 2 0
Bavarian Softwater Village Outside cities and towns 420 Groundwater 0 0 0
College Heights Mobile Home Park Auburn Hills 405 Groundwater 1 0 0
Penny Lake Estates Subdivision Outside cities and towns 390 Groundwater 0 0 0
Woodbine Subdivision Farmington Hills 375 Groundwater 0 0 0
Hillview Estates Subdivision Outside cities and towns 354 Groundwater 0 0 0
Highland Hills of Highland MHC Outside cities and towns 260 Groundwater 0 0 0
Shorewood Hills Subdivision Outside cities and towns 256 Groundwater 0 0 0
Knorrwood Knolls Subdivision Outside cities and towns 240 Groundwater 0 0 0
White Eagle Subdivision Outside cities and towns 224 Groundwater 0 0 0
Sunnydale Gardens Water Association Rochester Hills 190 Groundwater 0 0 0
Plum Creek Sub Outside cities and towns 105 Groundwater 0 0 0
Lakeshore Hilltop Apartments Outside cities and towns 93 Groundwater 0 0 0
Oxford Village Condominiums Outside cities and towns 80 Groundwater 2 3 No inventory
Adventure Acres Outside cities and towns 75 Groundwater 0 0 0
Manitou Lake Apartments Outside cities and towns 75 Groundwater 0 0 0
Pinecrest Apartments Outside cities and towns 57 Groundwater 1 1 0
Lakeview Chalet Condominiums Outside cities and towns 50 Groundwater 2 2 0
Kingston Apartments Outside cities and towns 50 Groundwater 0 0 0
Lakeview Apartments Outside cities and towns 50 Groundwater 0 0 0
Highland Haven/Woodside Apts Outside cities and towns 40 Groundwater 0 0 0
Heritage Apartments Wolverine Lake 30 Groundwater 1 1 0
Lake Angela Condo Apts #5 Outside cities and towns 24 Groundwater 0 0 0
Lake Angela Condo Apts #6 Outside cities and towns 24 Groundwater 0 0 0

Systems placed by county record in Oakland County

17 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Sashabaw Meadows MHP County on record 1,278 Groundwater 0 1 0
Franklin Knolls Subdivision County on record 383 Groundwater 1 0 0
Greens Lake Apartments County on record 330 Groundwater 0 0 0
Long Lake Village Subdivision County on record 273 Groundwater 0 0 0
Old Farm Colony Water Association County on record 246 Groundwater 0 0 0
Crossroads for Youth County on record 120 Groundwater 0 0 0
West Hickory Haven County on record 100 Groundwater 2 0 0
Villa at Green Lake Estates County on record 85 Groundwater 2 1 0
Rose Hill Center County on record 70 Groundwater 5 1 0
Colombiere Center County on record 60 Groundwater 0 0 0
Highland Meadowview Apartments County on record 40 Groundwater 0 0 0
Parkway Efficiency Apartments County on record 39 Groundwater 0 0 No inventory
Lakeside Apartments County on record 30 Groundwater 1 1 0
Beach House Apartments County on record 25 Groundwater 1 1 0
Lake Angela Condo Apts #3 County on record 24 Groundwater 0 1 0
Lake Angela Condo Apts #4 County on record 24 Groundwater 0 0 0
Southeastern Oakland Co W Auth County on record Not reported Purchased surface water 0 0 0

Cities and towns in Oakland County

35 places

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Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations