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Plants facing new discharge limits — by state and pollutant

for Selenium, total recoverable: 16 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Nov 1, 2026 and Oct 1, 2029 (45 limits); 7 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: OH 8 · IN 5 · MO 1 · SD 1 · WV 1

By pollutant: all · Nitrogen, ammonia total [as N] 526 · Chlorine, total residual 272 · Phosphorus, total [as P] 106 · E. coli 103 · Copper, total [as Cu] 85 · Copper, total recoverable 63 · Solids, total suspended 60 · Chloride [as Cl] 56 · BOD, carbonaceous [5 day, 20 C] 48 · Zinc, total [as Zn] 39 · Zinc, total recoverable 36 · BOD, 5-day, 20 deg. C 35 · pH 31 · Cyanide, free available 30 · Nitrogen, total [as N] 28 · Iron, total [as Fe] 22 · Mercury, total [as Hg] 22 · Toxicity [acute], Ceriodaphnia dubia 22 · Toxicity [acute], Pimephales promelas [Fathead Minnow] 21 · Selenium, total [as Se] 20 · Di[2-ethylhexyl] phthalate [DEHP] 19 · E. coli, MTEC-MF 19 · Mercury, total low level 19 · Toxicity [chronic], Ceriodaphnia dubia 18 · Toxicity [chronic], Pimephales promelas [Fathead Minnow] 18

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
City of Wapakoneta WRFOH0027952OHSewage plant, major6 MGDSelenium, total recoverablemonthly average 5.3 ug/L, newDec 1, 20266.5 ug/L (6 values)1.23×
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Selenium, total recoverablemonthly average 5 ug/L, newApr 1, 202718.5 ug/L (6 values)3.7×
REFLECTANCE ENERGY, LLCWV1013220WVIndustrial—Selenium, total recoverablemonthly average 4.7 ug/L, newApr 17, 202710.35 ug/L (5 values)2.2×
REFLECTANCE ENERGY, LLCWV1013220WVIndustrial—Selenium, total recoverablemonthly maximum 8.2 ug/L, newApr 17, 202711.43 ug/L (5 values)1.39×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDSelenium, total recoverablemonthly average 0.0031 mg/L, tighterJun 1, 20280.0065 mg/L (11 values)2.1×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDSelenium, total recoverablemonthly average 0.0031 mg/L, tighterJun 1, 20280.0045 mg/L (11 values)1.45×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDSelenium, total recoverabledaily maximum 0.0075 mg/L, tighterJun 1, 20280.01 mg/L (11 values)1.33×
DUKE ENERGY INDIANA CAYUGA GENERATING STATIONIN0002763INIndustrial, major—Selenium, total recoverabledaily maximum 10 ug/L, newJan 1, 2029210 ug/L (11 values)21×
INDIANAPOLIS BELMONT & SOUTHPORT AWTPIN0023183INSewage plant, major125 MGDSelenium, total recoverablemonthly average 0.0031 mg/L, newMay 1, 20290.0049 mg/L (11 values)1.58×
AMERICAN ELECTRIC POWER, ROCKPORT PLANTIN0051845INIndustrial, major—Selenium, total recoverablemonthly average 0.0031 mg/L, tighterOct 1, 20290.0225 mg/L (5 values, 2 below detection)7.26×
AMERICAN ELECTRIC POWER, ROCKPORT PLANTIN0051845INIndustrial, major—Selenium, total recoverabledaily maximum 0.0075 mg/L, tighterOct 1, 20290.0225 mg/L (5 values, 2 below detection)3×
Girard, City ofOH0025364OHSewage plant, major5 MGDSelenium, total recoverabledaily maximum 62 ug/L, newNov 1, 2026under 3 values—
Girard, City ofOH0025364OHSewage plant, major5 MGDSelenium, total recoverabledaily maximum 1.2 kg/d, newNov 1, 2026under 3 values—
Girard, City ofOH0025364OHSewage plant, major5 MGDSelenium, total recoverablemonthly average 0.095 kg/d, newNov 1, 2026under 3 values—
Girard, City ofOH0025364OHSewage plant, major5 MGDSelenium, total recoverablemonthly average 5 ug/L, newNov 1, 2026under 3 values—
City of Wapakoneta WRFOH0027952OHSewage plant, major6 MGDSelenium, total recoverabledaily maximum 72 ug/L, newDec 1, 20266.5 ug/L (6 values)0.0903×
City of Wapakoneta WRFOH0027952OHSewage plant, major6 MGDSelenium, total recoverabledaily maximum 1.6 kg/d, newDec 1, 2026under 3 values—
City of Wapakoneta WRFOH0027952OHSewage plant, major6 MGDSelenium, total recoverablemonthly average 0.12 kg/d, newDec 1, 2026under 3 values—
Pickerington Wastewater Treatment PlantOH0031119OHSewage plant, major3.2 MGDSelenium, total recoverabledaily maximum 0.84 kg/d, newJan 1, 2027under 3 values—
Pickerington Wastewater Treatment PlantOH0031119OHSewage plant, major3.2 MGDSelenium, total recoverabledaily maximum 69 ug/L, newJan 1, 2027under 3 values—
Pickerington Wastewater Treatment PlantOH0031119OHSewage plant, major3.2 MGDSelenium, total recoverablemonthly average 5.6 ug/L, newJan 1, 2027under 3 values—
Pickerington Wastewater Treatment PlantOH0031119OHSewage plant, major3.2 MGDSelenium, total recoverablemonthly average 0.068 kg/d, newJan 1, 2027under 3 values—
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Selenium, total recoverabledaily maximum 62 ug/L, newApr 1, 202718.5 ug/L (6 values)0.298×
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Selenium, total recoverabledaily maximum 0.82 kg/d, newApr 1, 2027under 3 values—
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Selenium, total recoverablemonthly average 0.066 kg/d, newApr 1, 2027under 3 values—
Strasburg Coal Prep PlantOH0076970OHIndustrial—Selenium, total recoverabledaily maximum 65 ug/L, newMar 1, 2028under 3 values—
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDSelenium, total recoverabledaily maximum 0.0075 mg/L, tighterJun 1, 20280.005 mg/L (11 values)0.667×
Van Wert WWTPOH0027910OHSewage plant, major4 MGDSelenium, total recoverabledaily maximum 0.95 kg/d, newJun 1, 2028under 3 values—
Van Wert WWTPOH0027910OHSewage plant, major4 MGDSelenium, total recoverabledaily maximum 63 ug/L, newJun 1, 2028under 3 values—
Van Wert WWTPOH0027910OHSewage plant, major4 MGDSelenium, total recoverablemonthly average 0.076 kg/d, newJun 1, 2028under 3 values—
Van Wert WWTPOH0027910OHSewage plant, major4 MGDSelenium, total recoverablemonthly average 5 ug/L, newJun 1, 2028under 3 values—
Lawrenceburg Road Ash LandfillOH0096687OHIndustrial—Selenium, total recoverabledaily maximum 120 ug/L, newAug 1, 202892.3 ug/L (11 values)0.769×
South Dakota Ellsworth Development Authority (SDEDA)SD0028611SDSewage plant, major3 MGDSelenium, total recoverabledaily maximum 12.8 ug/L, newApr 1, 20295 ug/L (3 values, 1 below detection)0.391×
South Dakota Ellsworth Development Authority (SDEDA)SD0028611SDSewage plant, major3 MGDSelenium, total recoverable30-day average 5 ug/L, newApr 1, 2029under 3 values—
INDIANAPOLIS BELMONT & SOUTHPORT AWTPIN0023183INSewage plant, major125 MGDSelenium, total recoverabledaily maximum 0.0075 mg/L, newMay 1, 20290.0071 mg/L (11 values)0.947×
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDSelenium, total recoverabledaily maximum 66 ug/L, newMay 1, 2029under 3 values—
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDSelenium, total recoverabledaily maximum 0.8 kg/d, newMay 1, 2029under 3 values—
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDSelenium, total recoverablemonthly average 0.062 kg/d, newMay 1, 2029under 3 values—
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDSelenium, total recoverablemonthly average 5.1 ug/L, newMay 1, 2029under 3 values—
GOSHEN WWTPIN0025755INSewage plant, major5 MGDSelenium, total recoverabledaily maximum 0.0075 mg/L, newJul 1, 2029under 3 values—
GOSHEN WWTPIN0025755INSewage plant, major5 MGDSelenium, total recoverabledaily maximum 0.31 lb/d, newJul 1, 2029under 3 values—
GOSHEN WWTPIN0025755INSewage plant, major5 MGDSelenium, total recoverablemonthly average 0.13 lb/d, newJul 1, 2029under 3 values—
GOSHEN WWTPIN0025755INSewage plant, major5 MGDSelenium, total recoverablemonthly average 0.0031 mg/L, newJul 1, 2029under 3 values—
City of PevelyMO0040142MOSewage plant, major—Selenium, total recoverablemonthly average 3.2 ug/L, newJul 30, 20290.04 ug/L (11 values)0.0125×
City of PevelyMO0040142MOSewage plant, major—Selenium, total recoverabledaily maximum 9.2 ug/L, newJul 30, 20290.04 ug/L (11 values)0.00435×

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=OH&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