Tapcensus

Michigan

Oakland County drinking water quality

729 active public water systems serve 1,157,537 people in Oakland County. 525 are compliant, 204 had at least one EPA violation in the past three years, 2 are designated serious violators, and 4 carry a health flag.

Active systems 729 108 community systems
People served 1.2M by public water systems
Systems with violations 204 28% of active systems, past 3 years
Serious violators 2 4 systems carry a health flag

Needs attention

Villa at Green Lake Estates MI0060792 · Community water system · Serves 85 7 rules violated in the past three years. Unresolved: Lead and Copper Rule and Lead and Copper Rule Revisions.
Casemer Tool & Machine MI2148363 · Non-Transient non-community system · Serves 70 2 rules violated in the past three years
Holly, Village of MI0003200 · Holly · Community water system · Serves 8,557 3 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions and Public Notice Rule and Revised PN Rule.
Oxford Village Condominiums MI0005136 · Community water system · Serves 80 11 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions and Public Notice Rule and Revised PN Rule.
Lakeview Apartments MI0006443 · Community water system · Serves 50 2 rules violated in the past three years. Unresolved: Arsenic Rule.

Community water systems

108 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Troy
Troy 		85,854 0 0
Rochester Hills
Rochester Hills 		74,000 0 0
Waterford Township
Waterford 		73,441 1 0
Southfield
Southfield 		71,739 1 0
Pontiac
Pontiac 		63,776 0 0
Royal Oak, City of
Royal Oak 		57,236 0 0
Farmington Hills, City of
Farmington Hills 		56,984 0 0
Novi, City of
Novi 		56,780 0 0
West Bloomfield Township
 49,479 0 0
Bloomfield Township
 41,691 0 0
Orion Township
 33,000 0 0
Madison Heights
Madison Heights 		29,694 0 0
Oak Park
Oak Park 		29,654 0 0
Ferndale
Ferndale 		22,105 2 0
Auburn Hills
Auburn Hills 		21,412 0 0
Birmingham
Birmingham 		20,472 2 0
Commerce Township
 19,811 0 0
Hazel Park
Hazel Park 		16,400 0 0
Berkley
Berkley 		14,970 0 0
Wixom, City of
Wixom 		13,928 0 0
Clawson
Clawson 		11,825 2 0
Independence Township
 11,790 0 0
Farmington, City of
Farmington 		11,597 0 0
South Lyon, City of
South Lyon 		11,055 0 0
Beverly Hills
 10,451 0 0
Oxford Township
 10,407 0 0
Lyon Township
 9,390 3 1
Holly, Village of
Holly 		8,557 3 2
Rochester
Rochester 		7,130 0 0
White Lake Township
 6,619 3 0
Milford, Village of
Milford 		6,366 1 0
Huntington Woods
Huntington Woods 		6,200 0 0
Walled Lake, City of
Walled Lake 		5,260 1 0
Rochester East
Rochester 		5,100 0 0
Southwest Oakland Township
 4,943 0 0
Lathrup Village
Lathrup Village 		4,075 3 1
Highland Township
 3,837 0 0
Bloomfield Hills
Bloomfield Hills 		3,579 0 0
Oxford, Village of
Oxford 		3,540 0 0
Springs/portsmouth Apartments
 3,200 1 0
Lake Orion, Village of
Lake Orion 		2,973 0 0
Pleasant Ridge
Pleasant Ridge 		2,872 0 0
Keego Harbor, City of
Keego Harbor 		2,740 0 0
Highland Greens Estates
 2,268 0 0
Orchard Lake Village
Orchard Lake 		2,194 0 0
Sylvan Lake
Sylvan Lake 		2,155 0 0
Southeast Oakland Township
 1,923 0 0
Royal Oak Township
 1,869 1 0
Deerwood Subdivision
 1,824 0 0
Cedarbrook Estates
 1,728 0 0
Non-community systems (621: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
William Beaumont Hospital
 8,240 0 0
Henry Ford West Bloomfield Hospital
 4,300 0 0
GM Proving Grounds Well 5, 7, 8, 9
 4,100 0 0
Kensington Water Park
 3,325 1 0
Milford High School/hvs
 1,400 0 0
Country Oaks Elem/oak Valley Center
 1,300 0 0
Brandon High School/bsd
 1,200 1 0
Mdot Davisburg #2, R908
 1,200 0 0
Springfield Town Square
 1,200 1 1
Sun Outdoors Kensington (haas Lake)
 1,200 2 1
Mdot Clarkston, R904
 1,000 0 0
Burger King Highland #4102
 750 0 0
Camp Tamarack Main Well
 750 0 0
Groveland Oaks Area 8
 750 0 0
Highland Town Center I
 750 0 0
Indian Springs Env Educational Ctr
 750 0 0
Pine Knob Ski Resort
 750 0 0
Hugger Elementary School
 680 0 0
Baldwin Elementary School
 650 0 0
Bailey Lake Elementary
 600 1 1
Brandon Middle School
 600 1 0
Comeback Inn
 600 0 0
Davisburg Elementary School
 600 1 0
Harvey Swanson Elementary School
 600 2 0
Springfield Plains Elementary
 600 1 1
Clear Lake Elementary
 582 0 0
Heritage Elementary Hvs
 550 0 0
Addison Oaks Cpgd.shower Bldg.
 500 0 0
Addison Oaks Loop D
 500 0 0
Alex's Market
 500 1 0
Bittker Conference Center
 500 0 0
Dnr-Seven Lakes Beach
 500 0 0
Dnr-Seven Lakes Big Seven Shelters
 500 1 0
Groveland Oaks Concession
 500 0 0
Hamilton-Parsons Elementary School
 500 0 0
Highland Retail Center Bldg a
 500 0 0
Lafontaine Automotive
 500 0 0
McDonald's Walled Lake #16112
 500 1 0
Oakland Schools-Tech Campus NW
 500 1 1
Oakview School
 500 1 1
Oakwood Elementary
 500 1 0
Spring Mills Elem School/hvs
 500 0 0
Springfield Oaks Event Grounds
 500 0 0
The River Church and Offices
 500 0 0
Walgreens Highland
 500 1 0
Oxbow Elementary School/hvs
 455 0 0
Cook's Farm Dairy
 435 0 0
Addison Oaks Conference Center
 400 0 0
Andersonville Elementary
 400 2 1
Collier Lanes
 400 1 0
Culver's Pontiac Trail
 400 0 0
Cvs Pharmacy #8304
 400 0 0
Dollar Tree White Lake #3558
 400 0 0
Lakeview Plaza
 400 0 0
Mobil #200312777 Highland
 400 0 0
Rochester Christian University
 400 1 0
South Lyon Center LLC
 400 1 1
Willoway Day Camp
 400 0 0
Addison Oaks Lodge Bldg.
 350 0 0
Apollo Early Childhood Ctr/hvs
 350 0 0
Highland Elem School/hvs
 350 0 0
Highland House Restaurant
 350 0 0
Huda School/montessori
 350 1 0
Hungry Howie's Clarkston
 350 1 0
Oakwood Community Church
 350 0 0
Rose Pioneer Elementary
 350 0 0
The Myth Golf and Banquet
 350 1 0
Waypoint Free Methodist Church
 350 0 0
Shepherd's Hollow Banquet Venue
 340 0 0
Upland Hills Farm INC
 305 1 0
15 Oak Square Mall
 300 2 1
Bordine's Nursery Retail
 300 1 0
Cracker Barrel General Store
 300 0 0
Cross of Christ Church and Preschool
 300 0 0
Dixie Baptist Church Auditorium
 300 0 0
Dnr-Holly Rec Area West Toilet
 300 0 0
Franklin Community Church
 300 1 0
Great Lakes Nat'l Cemetery-Admin
 300 0 0
Hillside Bible Church
 300 1 0
Indianwood Golf & Country Club
 300 1 0
Lyon Grill
 300 0 0
Marathon Gas (south Lyon)
 300 1 0
Mt. Holly Ski
 300 1 0
River Bank Golf Club
 300 2 0
St. Trinity Evangelical Lutheran Church
 300 0 0
The Holly Campground
 300 0 0
The Salvation Army Michigan House
 300 0 0
VFW Post #4156 White Lake
 300 0 0
Long Family Orchard
 291 1 0
BP #119901 Walled Lake
 250 1 0
Copper Hills Golf Club
 250 0 0
Dnr-Pontiac Lake Rec Area Org Cmp
 250 1 0
Escamilla Amigos Ortonville
 250 1 0
First Baptist Church of Clarkston
 250 0 0
McDonald's Ortonville #12245
 250 0 0
Shepherd's Hollow Clubhouse
 250 0 0
St. Anne Church / Educ Ctr
 250 0 0
The Salvation Army Chamberlin
 250 0 0
The Salvation Army Camp Pool
 250 0 0
Milford Office Park Bldg 1
 245 2 0
All 621 in the systems table
Inactive systems (1,442, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Michigan records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.