Tapcensus

Cyanide violations in Michigan

40 active public water systems in Michigan had a Cyanide violation in the past three years. What Cyanide is and why it matters.

Health effects: Acute high-dose cyanide exposure interferes with cellular oxygen use and can cause rapid deterioration of the central nervous system, including headache, dizziness, and in severe cases, loss of consciousness. Chronic exposure at lower levels is associated with thyroid dysfunction and nerve damage. Most drinking water violations pose chronic rather than acute risk.

Systems with a Cyanide violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Niles Township
Berrien County
2,270 7 1
Northville Crossing
Washtenaw County
1,890 3 0
Match-E-Be-Nash-She-Wish
County
1,350 3 0
Gateway Plaza Hart
Oceana County
1,103 7 0
Lyons
Lyons · Ionia County
789 6 0
Empire, Village of
Empire · Leelanau County
400 7 0
Hamilton Food Center
Allegan County
400 2 0
Dsisd Learning Center
Delta County
312 2 0
Atlanta Jr-Sr High School
Montmorency County
310 1 0
Atlas Valley Golf-Country Club
Genesee County
300 5 1
Crystal Downs Mobile Village
Muskegon County
260 5 0
Antler Bar Amusement
Oceana County
259 3 1
Adesa Auto Auction
Eaton County
200 2 1
Shafer Lake Fruit
Van Buren County
200 3 1
Williams Gunsight Indoor Range
Genesee County
200 5 1
Ben's Supercenter Marlette LLC
Sanilac County
150 1 0
Nottawa Community School
St. Joseph County
147 1 0
Circle of Friends Childcare Center
Genesee County
125 5 1
Honee Bear Canning
Van Buren County
110 5 0
Little Seeds Child Development Center
Wayne County
105 2 0
Arbor View
Branch County
100 5 1
Country View Bulk Foods
Sanilac County
100 1 0
Territorial Professional Building
Washtenaw County
100 5 0
Bandit Industries B1
Isabella County
95 5 1
MY Place at Twin Valley
Calhoun County
88 8 1
St. Vladimir Orthodox Church School
Washtenaw County
85 3 1
JR Automation North Well
Ottawa County
80 4 1
Advanced Orthopedic & Pain Institute
Barry County
78 4 1
Courtyard Manor of Fenton
Genesee County
75 4 1
Hospice of Lenawee
Lenawee County
75 3 1
New Era Migrant Head Start
Oceana County
52 3 0
Hidden Glen Apartments
Shiawassee County
50 8 1
McDonald Chevrolet-Millington
Tuscola County
50 2 0
Michigan Pallet Recycling
Eaton County
50 5 1
Fox Motors Greenville
Montcalm County
50 5 0
Oak Leaf Manor
Lewiston · Montmorency County
36 7 0
Michigan Brick Plant
Shiawassee County
35 2 1
Country Meadows School
Missaukee County
30 6 1
Fca Chelsea Proving Grounds Adas Buildin
Washtenaw County
25 3 1
Rathmourne Medina Dairy
Lenawee County
25 3 1
About this data

A system is counted once if any of its violations in the past three years involved Cyanide, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Cyanide alone.

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.