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Plants facing new discharge limits — by state and pollutant

In Missouri, for E. coli: 6 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Feb 1, 2027 and Jul 1, 2028 (16 limits); 0 of them reported a median above that limit between Oct 1, 2025 and Sep 30, 2026. EPA's file of Oct 16, 2026.

By state: all · IA 81 · MO 6 · FL 3 · GA 3 · SC 2 · AR 1 · CO 1 · DC 1 · MS 1 · NJ 1 · TN 1 · TX 1 · WI 1

By pollutant: all · E. coli 6 · Nitrogen, ammonia total [as N] 5 · Copper, total recoverable 3 · Chlorine, total residual 2 · Cyanide, free [amenable to chlorination] 2 · Cyanide, total [as CN] 2 · Chloride 1 · Nitrogen, total [as N] 1 · Selenium, total recoverable 1 · Temperature, water deg. fahrenheit 1 · Toxicity [acute], Ceriodaphnia dubia 1 · Toxicity [acute], Pimephales promelas [Fathead Minnow] 1 · Toxicity [chronic], Ceriodaphnia dubia 1 · Toxicity [chronic], Pimephales promelas [Fathead Minnow] 1 · Zinc, total recoverable 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
City of SteeleMO0057444MOSewage plant—E. coli7-day geometric mean 1030 #/100mL (Apr–Oct), newFeb 1, 2027under 3 values—
City of SteeleMO0057444MOSewage plant—E. colimonthly average 206 #/100mL (Apr–Oct), newFeb 1, 2027under 3 values—
LIBERTY BAPTIST CHURCH OF COLUMBIA,MO0129003MOIndustrial—E. coli30-day geometric mean 206 #/100mL (Apr–Dec), newFeb 1, 2027under 3 values—
LIBERTY BAPTIST CHURCH OF COLUMBIA,MO0129003MOIndustrial—E. colidaily maximum 1030 #/100mL (Apr–Dec), newFeb 1, 2027under 3 values—
City of ParnellMO0125636MOSewage plant—E. coli30-day geometric mean 206 #/100mL (Apr–Dec), newApr 1, 2027under 3 values—
City of ParnellMO0125636MOSewage plant—E. coli7-day geometric mean 1030 #/100mL (Apr–Dec), newApr 1, 2027under 3 values—
John & Lisa PageMO0124494MOIndustrial—E. coli30-day geometric mean 206 #/100mL (Apr–Dec), newApr 1, 2027under 3 values—
John & Lisa PageMO0124494MOIndustrial—E. colidaily maximum 1030 #/100mL (Apr–Dec), newApr 1, 2027under 3 values—
City of BosworthMO0135607MOSewage plant—E. coli30-day geometric mean 206 #/100mL (Apr–Dec), newApr 1, 2028under 3 values—
City of BosworthMO0135607MOSewage plant—E. coli7-day geometric mean 1030 #/100mL (Apr–Dec), newApr 1, 2028under 3 values—
City of ClarenceMO0041076MOSewage plant—E. coli30-day geometric mean 206 #/100mL (Apr–Oct), newJul 1, 2028under 3 values—
City of ClarenceMO0041076MOSewage plant—E. coli7-day geometric mean 1030 #/100mL (Apr–Oct), newJul 1, 2028under 3 values—
City of ClarenceMO0041076MOSewage plant—E. coli30-day geometric mean 206 #/100mL (Apr–Oct), newJul 1, 2028under 3 values—
City of ClarenceMO0041076MOSewage plant—E. coli7-day geometric mean 1030 #/100mL (Apr–Oct), newJul 1, 2028under 3 values—
City of ClarenceMO0041076MOSewage plant—E. coli30-day geometric mean 206 #/100mL (Apr–Oct), newJul 1, 2028under 3 values—
City of ClarenceMO0041076MOSewage plant—E. coli7-day geometric mean 1030 #/100mL (Apr–Oct), newJul 1, 2028under 3 values—

Each limit is one EPA's ICIS-NPDES file holds on the permit's current version with a begin date after today, enforceable and numeric, either on a parameter the outfall was never limited on (new) or lower than the limit in force (tighter). Today's median is the plant's own reported values for the same outfall, statistic and unit between Oct 1, 2025 and Sep 30, 2026, with how many; none is shown where most were below a detection limit. Read the permit before relying on a value.

Sell to these plants? The list for your states every week, with every plant over a limit on your pollutant, as a spreadsheet, by API and by email when a new one appears: ask for the plant list, or write to info@passage-data.com. What a seller gets.

For programs and AI agents: a state's permits with these limits as JSON at /api/v1/permits?state=MO&upcoming=true, narrowed with &facility_type=potw or &min_flow_mgd=1; the whole list at /dmr/data/upcoming.json; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt

From EPA's ECHO data, not the permit document itself: your permit is the final word. All states