Environmental protection: sewage; violations for sewer overflows; modify. Amends 1994 PA 451 (MCL 324.101 - 324.90106) by adding sec. 3115b.

HB 4035 requires counties with populations over 1 million that violate sewage discharge permits to create and implement a plan reducing average sewage overflows by 50% within 5 years. The plan must be submitted within one year of the first violation and approved by the state environmental department within 180 days. Counties failing to submit or complete the plan face monthly fines up to $1 million and potential permit denial for sewage operations. This bill directly affects large urban counties with sewage infrastructure issues, aiming to reduce pollution through enforceable reduction targets.