County adopts industrial noise ordinance after months of stakeholder work; commissioners note enforcement gaps

Brian Tanner, a member of the St. Joseph County Council, told commissioners the industrial noise ordinance before them was the product of months of outreach and technical review and "did not appear overnight." Tanner said the council process included "21 points of meaningful engagement" and "18 documented points of direct written communication" with business stakeholders and county staff, and that the final draft incorporated a telecommunications exemption adopted on the council floor.

Tanner said the ordinance protects existing industrial operators through grandfathering, shielding them "from being held in violation for noise levels they currently produce," and allows modest, defined expansions without triggering new requirements. He described a uniform, professionally supported measurement method (C-weighted decibels), an appeals process, and a cost-allocation matrix that generally requires new development or qualifying expansions to pay for baseline noise assessments. "What this ordinance does is create clarity," Tanner said. "It establishes standing requirements to deter frivolous complaints; it creates an assessment and appeals process, exceedance mitigation timelines, and cost allocation management."

Commissioners pressed Tanner for details. He said small investments or small expansions would not require changes, while larger expansions might trigger a new baseline assessment; the ordinance, Tanner said, allows existing operators to increase noise by up to about 5 decibels above their current baseline if they meet threshold criteria and, in some cases, negotiate a waiver with a neighboring property owner. He also described a 150-foot right-of-way exception intended for major transportation corridors where measurements are impractical and noted federal or state preemption could exempt some power-transmission or generation facilities.

Tanner outlined enforcement costs and protections: if county staff's preliminary assessment indicates a possible violation, the county would escalate to a qualified acoustical professional; if an assessment confirms a violation, the business would be responsible for consultant fees and mitigation costs. For repeat or frivolous complaints, the county may require complainants to escrow funds to cover assessment costs.

An online commenter who identified himself as Steve expressed support for the ordinance as a step forward. After debate, commissioners moved and approved the ordinance. One commissioner said he would vote "aye" but reiterated concerns that there remain "considerable holes" to be addressed, especially around enforcement cost and public-health protections.

The ordinance was presented to the board as council-adopted language; commissioners approved it on May 6, and Tanner asked the board to "honor that work and the language that was shaped by the very people in this room."