Joplin planning commission tables draft data-center rules after hours of public concern

The Joplin Planning and Zoning Commission on July 1 tabled a first-draft text amendment that would create specific use standards for data centers in the city’s M2 heavy industrial zone, after more than two hours of testimony from residents, advocates and city staff.

City planner Tyler (city staff) told the commission the draft would require a special-use permit in M2 only, a 50-foot general setback for structures and a 300-foot setback from “conflicting uses” such as residences, day cares, schools and parks. The draft would also require a photometric lighting plan with a proposed maximum of about 0.5 foot-candle at the property line, closed-loop cooling systems, and on-site sound monitoring with a proposed C-weighted limit of 45 decibels measured 50 feet from a property line. The draft requires developers to provide utility agreements and “will serve” letters to prevent infrastructure upgrade costs from being passed to ratepayers, and reserves the city’s right to require independent third‑party verification of studies submitted by applicants.

During public comment, Amanda Calderon Kidston urged the commission to add more detailed water‑use and wastewater standards, including maximum daily water use and explicit decommissioning requirements, arguing that the draft did not adequately address water demand, stormwater or post‑closure remediation. She asked the commission to require standards on acceptable water sources and financial assurance for decommissioning.

Rebecca Collins, director of the Joplin Sustainable Technology Alliance, urged the commission to adopt “proactive, enforceable” standards, naming three priorities: strict sound thresholds, closed‑loop water recycling and rate protections that place the cost of grid or substation upgrades on developers rather than on utility customers.

Several nearby residents described existing drainage and noise problems on and near Wildwood Ranch and emphasized the potential scale of the project. Judy Reeves (resident) said flooding and standing water on Annalise Lane already cause difficulties at her property and raised the proximity of a 300-foot buffer to her back door. Sue Godsey and other speakers emphasized low‑frequency noise and urged stricter in‑house mitigation during construction, not only buffer distances. Multiple speakers asked for explicit decommissioning language, financial assurances to prevent taxpayers from inheriting cleanup costs, and stronger enforcement mechanisms if operators violate standards.

City staff answered that many of the technical issues flagged by speakers — stormwater, sewer pH protections, and required engineering evaluations — are addressed in existing municipal code provisions and by professional engineering review during permitting, but staff acknowledged the draft is a first iteration and said additional references to municipal code and more explicit decommissioning language could be added in later drafts.

Commissioners debated three procedural options: forward the draft to city council without comment, deny it, or table it for further work. After discussion and a motion to table, the commission voted to table the text amendment for further staff research and redrafting so the issues raised at the hearing can be incorporated or clarified. The commission did not adopt the draft at the meeting and will revisit the item in a later session or forward a revised draft to city council.

Stakeholders asked for several specific additions before approval: clear numerical water‑use limits or source restrictions, explicit decommissioning and post‑closure financial assurance, tighter sound‑measurement protocols that account for low‑frequency (C‑weighted) noise at the building level rather than only at property lines, and firm enforcement mechanisms with penalties beyond administrative fines.

The Commission’s action to table allows staff to incorporate a wider set of references (including municipal code chapter citations), to refine measurement and enforcement language, and to return with a revised draft that addresses water, wastewater, stormwater, decommissioning and enforcement questions raised by residents and environmental groups.

The agenda item was tabled; staff said it would continue public outreach and that additional technical material may come from a staff conference on data centers and public input.