Passage Data · Plants facing new limits · Permits by state
Wastewater plants and factories with a U.S. discharge permit report what they release to EPA. We set those reports against each permit's limits and list the plants that need treatment, chemicals, sensors or engineering — by state and by pollutant.
Each permit's last 12 months of reports, set against its limits: which plants went over, on what, and how many times. Permits in 60 states and territories, each state by industry: paper mills in Wisconsin, for one.
1,365 plants in 42 states hold a permit with a new or tighter discharge limit already written into it. Each row says the date the limit starts and what the plant discharges today; 365 of these plants already report above a limit that is coming.
A permit is rewritten when it is renewed, and that is when a tighter limit usually arrives. Every permit and industry page says when the permit expires and whether its renewal application is due or overdue.
Price on request.
Or write to info@passage-data.com with your states and what you sell.
A violation alone singles out few plants: in Texas, most municipal plants had one in the last three years. What sets a buyer apart is the pollutant — a plant over its phosphorus limit month after month, or one whose permit already holds a limit it does not meet today. These lists are ranked by that.
Source: U.S. EPA ECHO, the ICIS-NPDES national file, refreshed weekly; EPA's file of Oct 16, 2026. Each row links to its permit page, with the limits as EPA prints them and the reports as filed.
For programs and AI agents: the same lists from /api/v1/permits?state=OH¶meter=phosphorus&over_limit=true, &upcoming=true or &renewal=due, or the tool list_permits at https://passage-data.com/mcp.