LANSING, Mich. — Fixing the pipes, plants, dams and drains that move Michigan’s water carries a price tag of $39.6 billion or more in one-time capital work over 20 years, and keeping those systems running would add roughly $860 million every year, according to a new statewide needs assessment.
The University of Michigan’s Water Center teamed with Public Sector Consultants, a nonpartisan research firm, on the study after the state Senate Appropriations Committee chair asked for it. The Charles Stewart Mott Foundation paid for the work. Researchers pulled together more than 60 earlier reports and surveys to build what they describe as the first single inventory of the state’s water funding needs.
The biggest share is traditional infrastructure. Drinking water systems need about $16.26 billion, wastewater about $9.1 billion, and replacing an estimated 245,000 lead service lines another $1.96 billion. Stormwater adds $6 billion, a figure the authors call conservative given heavier storms. Michigan’s assessed dams need about $980 million.
Rural households are part of the bill too. The report puts the cost of swapping out about 130,000 failing septic systems at $2.2 billion, plus $676 million a year for ongoing replacements, and estimates $600 million just to check private wells for PFAS contamination. It also counts about $181 million a year to help roughly 395,000 eligible households keep up with water bills, and about $2.5 billion to reach the state’s goal of restoring 500,000 acres of wetlands.
The authors stress that the true total is higher. Nobody has measured the condition of private wells serving about 1 million Michigan households, and most source water protection, flood control and green stormwater needs have never been fully priced.
Current spending is far short. Spread over 20 years, the need works out to about $2.8 billion a year, while Michigan communities have historically spent around $1.14 billion. The state has put more than $3 billion into water work through the Michigan Water Plan, but much of that came from one-time federal pandemic and infrastructure dollars that must be spent by Dec. 31.
The federal share of water infrastructure costs has dropped to about 7%, pushing more of the load onto local ratepayers, and Michigan water service has grown 188% more expensive since 1980 after adjusting for inflation. Dams show the gap plainly: moving at today’s rate, the state grant program aimed at reducing dam risk would need about 65 years to work through the current repair list.
Demand from lawmakers is high. Heading into the 2027 budget, 78 legislators out of 148, Democrats and Republicans alike, sought money for local water work. Their 125 projects, spread over 42 of Michigan’s 83 counties, added up to about $1.02 billion. Lawmakers ended up approving $27.9 million, under 3% of what was sought.
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