Michigan never uses the term 'contract operator.' It asks one thing: is the operator in charge certified at or above the system's class.
Being a contract operator means carrying responsible charge for systems you don't own, on rules that change at every state line. This page holds what this state actually requires, cited to the current rule text and dated. If you're earlier in the journey, start with the guides below.
Michigan runs two separate programs, both handled by the state's environmental agency (EGLE) but governed by different laws. Neither one uses the phrase "contract operator."
Drinking water systems are graded F-1 to F-5 for full treatment (surface water or water under its influence) or D-1 to D-5 for limited treatment (groundwater), plus S grades for small or non-community supplies (Mich. Admin. Code R 325.11901). A certified operator can run any system graded at or below their own certificate level. An F-certificate holder can also run a same-numbered D system, or a class S-5 system (R 325.11905(2)).
Wastewater uses its own scale: Class A down to D, plus L1/L2 for lagoons and SC, and each class demands more schooling and experience than the one below it (R 299.2918; MCL 324.4104).
Whether the operator is on staff or under a contract, the rule asks one thing: is the operator in charge, meaning whoever is actually running the system, certified at or above that system's grade.
Source: R 325.11905, Certification of operators, verified 2026-07-16; R 299.2918, Operator certification; minimum requirements, verified 2026-07-16.
Michigan's drinking-water rules skip the term "operator of record." Instead they name an "operator in charge," plus two backup roles: shift operator and back-up operator (R 325.10106). A public water supply has to give EGLE the names of all three on request, and must tell EGLE within 7 days if it loses any of them (R 325.11906b).
Wastewater works differently. The owner names a superintendent, a certified operator who is in responsible charge of day-to-day running of the system, meaning the person actually accountable for it, not just an admin title, and must tell the state in writing, including that person's address and phone (R 299.2952). Swap in a new superintendent and the owner has 10 days to report it. A monthly sampler doesn't meet either bar; both roles need someone genuinely running the system day to day.
Source: R 325.10106, Definitions; M to O, verified 2026-07-16; R 299.2952, sewerage systems operation and maintenance, verified 2026-07-17.
Michigan runs two separate EGLE certification units on separate statutory bases (DW = Safe Drinking Water Act PA 399/1976 + R 325 Part 19, administered by OTCU; WW/stormwater = NREPA Part 41 PA 451/1994 + R 299.2901 et seq., administered by LATS) with no shared 'contract operator' terminology across either program; both regimes certify individuals, not firms, and attach supervision duties to the classified system/facility rather than to an employment relationship.
Michigan doesn't have a contract-specific filing form for either program (SILENT). What it does require is notice: drinking water supplies must tell EGLE within 7 days when they lose an operator in charge, shift operator, or back-up operator (R 325.11906b), and wastewater owners have 10 days to report a new superintendent (R 299.2952).
That notice duty applies the same whether the operator is an employee or a contractor. Build these windows into your contract-operator agreement, because the state's clock runs whether or not you file anything separately.
Source: R 325.11906b, Notices to the department, verified 2026-07-16.
We checked Part 19 for a cap on how many systems one operator can run, or a distance limit between them, and found neither (SILENT).
Michigan ties staffing to system grade instead: an F-graded community supply needs a shift operator on-site every operating shift, unless EGLE approves a written plan that waives it. That plan must still name a back-up operator certified F-4 or higher.
So the real ceiling in Michigan isn't a headcount. It's whether one person can physically be on-site for every shift you've promised to cover.
Michigan sets no minimum number of site visits per week for drinking water or wastewater (SILENT for both). Instead, it regulates who has to be physically present. F-graded community supplies need a shift operator on-site for every operating shift; Class D-1/D-2 systems need a back-up operator certified D-4 or higher; Class S-1/S-2 needs an S-4 or higher back-up.
EGLE can waive the on-site shift rule if the utility submits a written plan showing the system stays protected without someone physically there, and that plan still has to name a certified back-up operator. The rule text never uses the words "remote" or "SCADA," so there's no separate remote-operations category to point to.
Every system, whatever the schedule, needs a written plan for what happens when the operator in charge isn't available.
Source: R 325.11905, Certification of operators, verified 2026-07-16.
Michigan has no business-registration, insurance, or licensing requirement for running a contract-operator business (SILENT). Certification belongs to the individual operator, not the company, and it follows that person from job to job.
What a board or council actually needs from you isn't a state license. It's the paperwork the rule already requires: the names of your operator in charge, shift operator, and back-up operator, plus a written plan for coverage when the operator in charge isn't available. Bring that to the table and you've answered the state's real question.
Most states don't make liability insurance a condition of holding a license. Carry it anyway. EPA's operator hiring guide puts it on the short list of questions every board should ask a contract operator: do you have liability insurance, and does it name the utility?
The reason is simple. You are making calls that affect public drinking water on systems you don't own. If something goes wrong, an uninsured operator puts the board's whole trust in you on the line, and boards that have been burned know to ask. Showing up to the first conversation with coverage in hand, and the certificate to prove it, closes the question before it opens. Talk to an insurance agent who handles utility contractors; policies that name each system you serve are the norm in this business.
Every system you operate on one map, with the records, work orders, and compliance schedule your crew actually uses. We run our own contract operation on it, so the demo is the real thing, not a sandbox.
Verify against Michigan's own rule text before you sign anything. Load-bearing sources below.
Rules change. Check the current text before you commit.
Michigan EGLE: Drinking Water & Env. Health Division