This bill assists municipalities in implementing and enforcing storm water management programs to regulate and control storm water pollution. The bill ensures that the District Court and Superior Court have concurrent jurisdiction to hear enforcement actions brought by municipalities regarding violations of ordinances and ordinance provisions they are required to enact, implement and enforce regarding nonstorm water discharges, construction site runoff and postconstruction storm water management. The bill also adds these ordinances to the list of environmental ordinances that the municipality may enforce using the land use enforcement mechanism, pursuant to the Maine Rules of Civil Procedure, Rule 80K, authorizing code enforcement officers to prosecute certain violations and by which a prevailing municipality may obtain a fine, injunctive relief or payment of attorney's fees, expert witness fees and costs from the violator if the municipality prevails.