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Plants facing new discharge limits — by state and pollutant

for Chloride [as Cl]: 56 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Aug 1, 2031 (199 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: IA 45 · MN 4 · IN 2 · TX 2 · AR 1 · CO 1 · VA 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
Sacred Heart city ofMN0024708MNSewage plant.237 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJan 1, 2027821 mg/L (5 values)3.57×
CITY OF PEOSTAIA0075507IASewage plant.081 MGDChloride [as Cl]30-day average 389 mg/L, newFeb 1, 2027403 mg/L (11 values)1.04×
Gloucester CountyVA0078778VAIndustrial—Chloride [as Cl]monthly average 360 mg/L, tighterMay 1, 20275017 mg/L (11 values)13.9×
PLAINFIELD SOUTH WWTP, TOWN OFIN0062456INSewage plant, major4 MGDChloride [as Cl]monthly average 360 mg/L, tighterFeb 1, 2028370 mg/L (11 values)1.03×
CITY OF DANBURYIA0035246IASewage plant.255 MGDChloride [as Cl]30-day average 749 mg/L, tighterJun 1, 20281139 mg/L (12 values)1.52×
CITY OF DANBURYIA0035246IASewage plant.255 MGDChloride [as Cl]daily maximum 749 mg/L, tighterJun 1, 20281139 mg/L (12 values)1.52×
STUDY BUTTE WATER SUPPLY CORPORATIONTX0133183TXIndustrial.2 MGDChloride [as Cl]daily average 785 mg/L, newJun 1, 2029976 mg/L (11 values)1.24×
Alexandria Lake Area Sanitary DistrictMN0040738MNSewage plant, major4.7 MGDChloride [as Cl]monthly average 230 mg/L, tighterJul 1, 2030748 mg/L (11 values)3.25×
Alexandria Lake Area Sanitary DistrictMN0040738MNSewage plant, major4.7 MGDChloride [as Cl]daily maximum 4483 kg/d, tighterJul 1, 20307960 kg/d (11 values)1.78×
CITY OF TEMPLETONIA0033782IASewage plant—Chloride [as Cl]30-day average 3289 lb/d, newDec 1, 2026under 3 values—
CITY OF TEMPLETONIA0033782IASewage plant—Chloride [as Cl]30-day average 394 mg/L, newDec 1, 2026under 3 values—
CITY OF TEMPLETONIA0033782IASewage plant—Chloride [as Cl]daily maximum 5253 lb/d, newDec 1, 2026under 3 values—
CITY OF TEMPLETONIA0033782IASewage plant—Chloride [as Cl]daily maximum 630 mg/L, newDec 1, 2026under 3 values—
CITY OF NEVADAIA0031704IASewage plant, major6.218 MGDChloride [as Cl]30-day average 12025 lb/d, newJan 1, 2027under 3 values—
CITY OF NEVADAIA0031704IASewage plant, major6.218 MGDChloride [as Cl]30-day average 389 mg/L, newJan 1, 2027under 3 values—
CITY OF NEVADAIA0031704IASewage plant, major6.218 MGDChloride [as Cl]daily maximum 19458 lb/d, newJan 1, 2027under 3 values—
CITY OF NEVADAIA0031704IASewage plant, major6.218 MGDChloride [as Cl]daily maximum 629 mg/L, newJan 1, 2027under 3 values—
Sacred Heart city ofMN0024708MNSewage plant.237 MGDChloride [as Cl]daily maximum 377 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJan 1, 2027under 3 values—
CITY OF PEOSTAIA0075507IASewage plant.081 MGDChloride [as Cl]daily maximum 629 mg/L, newFeb 1, 2027403 mg/L (11 values)0.641×
CITY OF PEOSTAIA0075507IASewage plant.081 MGDChloride [as Cl]30-day average 1433 lb/d, newFeb 1, 2027702.4 lb/d (11 values)0.49×
CITY OF PEOSTAIA0075507IASewage plant.081 MGDChloride [as Cl]daily maximum 2318 lb/d, newFeb 1, 2027702.4 lb/d (11 values)0.303×
CITY OF HUXLEYIA0083518IASewage plant2.8 MGDChloride [as Cl]30-day average 402 mg/L, newFeb 1, 202778.4 mg/L (11 values)0.195×
CITY OF HUXLEYIA0083518IASewage plant2.8 MGDChloride [as Cl]30-day average 2803 lb/d, newFeb 1, 2027367 lb/d (11 values)0.131×
CITY OF HUXLEYIA0083518IASewage plant2.8 MGDChloride [as Cl]daily maximum 631 mg/L, newFeb 1, 202778.4 mg/L (11 values)0.124×
CITY OF HUXLEYIA0083518IASewage plant2.8 MGDChloride [as Cl]daily maximum 4466 lb/d, newFeb 1, 2027367 lb/d (11 values)0.0822×
CITY OF FONDAIA0046671IASewage plant.379 MGDChloride [as Cl]30-day average 389 mg/L, newMar 1, 2027under 3 values—
CITY OF FONDAIA0046671IASewage plant.379 MGDChloride [as Cl]30-day average 4149 lb/d, newMar 1, 2027under 3 values—
CITY OF FONDAIA0046671IASewage plant.379 MGDChloride [as Cl]daily maximum 629 mg/L, newMar 1, 2027under 3 values—
CITY OF FONDAIA0046671IASewage plant.379 MGDChloride [as Cl]daily maximum 6713 lb/d, newMar 1, 2027under 3 values—
Montrose Waste Water FacilitiesAR0041297ARSewage plant.108 MGDChloride [as Cl]monthly average 75.1 lb/d, newMay 1, 2027under 3 values—
CITY OF DES MOINESIA0076511IAIndustrial—Chloride [as Cl]30-day average 389 mg/L, newMay 1, 2027under 3 values—
CITY OF DES MOINESIA0076511IAIndustrial—Chloride [as Cl]30-day average 577 lb/d, newMay 1, 2027under 3 values—
CITY OF DES MOINESIA0076511IAIndustrial—Chloride [as Cl]daily maximum 629 mg/L, newMay 1, 2027under 3 values—
CITY OF DES MOINESIA0076511IAIndustrial—Chloride [as Cl]daily maximum 934 lb/d, newMay 1, 2027under 3 values—
CITY OF LAKE MILLSIA0027448IASewage plant1 MGDChloride [as Cl]30-day average 389 mg/L, newMay 1, 2027under 3 values—
CITY OF LAKE MILLSIA0027448IASewage plant1 MGDChloride [as Cl]30-day average 2431 lb/d, newMay 1, 2027under 3 values—
CITY OF LAKE MILLSIA0027448IASewage plant1 MGDChloride [as Cl]daily maximum 3933 lb/d, newMay 1, 2027under 3 values—
CITY OF LAKE MILLSIA0027448IASewage plant1 MGDChloride [as Cl]daily maximum 629 mg/L, newMay 1, 2027under 3 values—
CITY OF WAYLANDIA0047953IASewage plant.749 MGDChloride [as Cl]30-day average 1005 lb/d, newJul 1, 2027under 3 values—
CITY OF WAYLANDIA0047953IASewage plant.749 MGDChloride [as Cl]30-day average 389 mg/L, newJul 1, 2027under 3 values—
CITY OF WAYLANDIA0047953IASewage plant.749 MGDChloride [as Cl]daily maximum 629 mg/L, newJul 1, 2027under 3 values—
CITY OF WAYLANDIA0047953IASewage plant.749 MGDChloride [as Cl]daily maximum 1626 lb/d, newJul 1, 2027under 3 values—
CITY OF CARROLLIA0021377IASewage plant, major6.3 MGDChloride [as Cl]30-day average 389 mg/L, newAug 1, 2027under 3 values—
CITY OF CARROLLIA0021377IASewage plant, major6.3 MGDChloride [as Cl]30-day average 13614 lb/d, newAug 1, 2027under 3 values—
CITY OF CARROLLIA0021377IASewage plant, major6.3 MGDChloride [as Cl]daily maximum 22027 lb/d, newAug 1, 2027under 3 values—
CITY OF CARROLLIA0021377IASewage plant, major6.3 MGDChloride [as Cl]daily maximum 629 mg/L, newAug 1, 2027under 3 values—
CITY OF HINTONIA0057053IASewage plant—Chloride [as Cl]30-day average 4731 lb/d, newAug 1, 2027under 3 values—
CITY OF HINTONIA0057053IASewage plant—Chloride [as Cl]30-day average 629 mg/L, newAug 1, 2027under 3 values—
CITY OF HINTONIA0057053IASewage plant—Chloride [as Cl]daily maximum 4731 lb/d, newAug 1, 2027under 3 values—
CITY OF HINTONIA0057053IASewage plant—Chloride [as Cl]daily maximum 629 mg/L, newAug 1, 2027under 3 values—
CITY OF PLEASANTVILLEIA0035921IASewage plant1.25 MGDChloride [as Cl]30-day average 389 mg/L, newAug 1, 2027under 3 values—
CITY OF PLEASANTVILLEIA0035921IASewage plant1.25 MGDChloride [as Cl]30-day average 2820 lb/d, newAug 1, 2027under 3 values—
CITY OF PLEASANTVILLEIA0035921IASewage plant1.25 MGDChloride [as Cl]daily maximum 629 mg/L, newAug 1, 2027under 3 values—
CITY OF PLEASANTVILLEIA0035921IASewage plant1.25 MGDChloride [as Cl]daily maximum 4563 lb/d, newAug 1, 2027under 3 values—
AG PROCESSING INC a COOPERATIVEIA0064262IAIndustrial.055 MGDChloride [as Cl]30-day average 126 lb/d, newOct 1, 2027under 3 values—
AG PROCESSING INC a COOPERATIVEIA0064262IAIndustrial.055 MGDChloride [as Cl]30-day average 487 mg/L, newOct 1, 2027under 3 values—
AG PROCESSING INC a COOPERATIVEIA0064262IAIndustrial.055 MGDChloride [as Cl]daily maximum 642 mg/L, newOct 1, 2027under 3 values—
AG PROCESSING INC a COOPERATIVEIA0064262IAIndustrial.055 MGDChloride [as Cl]daily maximum 194 lb/d, newOct 1, 2027under 3 values—
CITY OF LAKE VIEWIA0041998IASewage plant1.32 MGDChloride [as Cl]30-day average 414 mg/L, newNov 1, 2027under 3 values—
CITY OF LAKE VIEWIA0041998IASewage plant1.32 MGDChloride [as Cl]30-day average 1539 lb/d, newNov 1, 2027under 3 values—
CITY OF LAKE VIEWIA0041998IASewage plant1.32 MGDChloride [as Cl]daily maximum 2421 lb/d, newNov 1, 2027under 3 values—
CITY OF LAKE VIEWIA0041998IASewage plant1.32 MGDChloride [as Cl]daily maximum 633 mg/L, newNov 1, 2027under 3 values—
PLAINFIELD SOUTH WWTP, TOWN OFIN0062456INSewage plant, major4 MGDChloride [as Cl]daily maximum 720 mg/L, tighterFeb 1, 2028390 mg/L (11 values)0.542×
TMR IncCO0049074COIndustrial—Chloride [as Cl]rolling average 600 mg/L, newMay 1, 2028under 3 values—
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDChloride [as Cl]monthly average 320 mg/L, newJun 1, 202861.8 mg/L (11 values)0.193×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDChloride [as Cl]daily maximum 550 mg/L, newJun 1, 202884.7 mg/L (11 values)0.154×
CITY OF DANBURYIA0035246IASewage plant.255 MGDChloride [as Cl]30-day average 6368 lb/d, tighterJun 1, 2028196.8 lb/d (11 values)0.0309×
CITY OF DANBURYIA0035246IASewage plant.255 MGDChloride [as Cl]daily maximum 6368 lb/d, tighterJun 1, 2028196.8 lb/d (11 values)0.0309×
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]daily maximum 363 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]daily maximum 308 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
CITY OF BREDAIA0056103IASewage plant.605 MGDChloride [as Cl]30-day average 389 mg/L, newJul 1, 2028under 3 values—
CITY OF BREDAIA0056103IASewage plant.605 MGDChloride [as Cl]30-day average 3971 lb/d, newJul 1, 2028under 3 values—
CITY OF BREDAIA0056103IASewage plant.605 MGDChloride [as Cl]daily maximum 6425 lb/d, newJul 1, 2028under 3 values—
CITY OF BREDAIA0056103IASewage plant.605 MGDChloride [as Cl]daily maximum 629 mg/L, newJul 1, 2028under 3 values—
CITY OF JEWELLIA0024422IASewage plant.36 MGDChloride [as Cl]30-day average 5720 lb/d, newJul 1, 2028under 3 values—
CITY OF JEWELLIA0024422IASewage plant.36 MGDChloride [as Cl]30-day average 392 mg/L, newJul 1, 2028under 3 values—
CITY OF JEWELLIA0024422IASewage plant.36 MGDChloride [as Cl]daily maximum 629 mg/L, newJul 1, 2028under 3 values—
CITY OF JEWELLIA0024422IASewage plant.36 MGDChloride [as Cl]daily maximum 9186 lb/d, newJul 1, 2028under 3 values—
CITY OF MOORHEADIA0062995IASewage plant.057 MGDChloride [as Cl]30-day average 1118 lb/d, newSep 1, 2028under 3 values—
CITY OF MOORHEADIA0062995IASewage plant.057 MGDChloride [as Cl]30-day average 435 mg/L, newSep 1, 2028under 3 values—
CITY OF MOORHEADIA0062995IASewage plant.057 MGDChloride [as Cl]daily maximum 635 mg/L, newSep 1, 2028under 3 values—
CITY OF MOORHEADIA0062995IASewage plant.057 MGDChloride [as Cl]daily maximum 1630 lb/d, newSep 1, 2028under 3 values—
CITY OF SWEA CITYIA0047813IASewage plant.0945 MGDChloride [as Cl]30-day average 389 mg/L, newOct 1, 2028under 3 values—
CITY OF SWEA CITYIA0047813IASewage plant.0945 MGDChloride [as Cl]30-day average 2090 lb/d, newOct 1, 2028under 3 values—
CITY OF SWEA CITYIA0047813IASewage plant.0945 MGDChloride [as Cl]daily maximum 3312 lb/d, newOct 1, 2028under 3 values—
CITY OF SWEA CITYIA0047813IASewage plant.0945 MGDChloride [as Cl]daily maximum 630 mg/L, newOct 1, 2028under 3 values—
LAKE CORNELIA SANITARY DISTRICTIA0066401IASewage plant—Chloride [as Cl]30-day average 403 mg/L, newDec 1, 2028under 3 values—
LAKE CORNELIA SANITARY DISTRICTIA0066401IASewage plant—Chloride [as Cl]30-day average 1354 lb/d, newDec 1, 2028under 3 values—
LAKE CORNELIA SANITARY DISTRICTIA0066401IASewage plant—Chloride [as Cl]daily maximum 2122 lb/d, newDec 1, 2028under 3 values—
LAKE CORNELIA SANITARY DISTRICTIA0066401IASewage plant—Chloride [as Cl]daily maximum 631 mg/L, newDec 1, 2028under 3 values—
CITY OF HOLSTEINIA0021954IASewage plant—Chloride [as Cl]30-day average 390 mg/L, newFeb 1, 2029under 3 values—
CITY OF HOLSTEINIA0021954IASewage plant—Chloride [as Cl]30-day average 11555 lb/d, newFeb 1, 2029under 3 values—
CITY OF HOLSTEINIA0021954IASewage plant—Chloride [as Cl]daily maximum 18626 lb/d, newFeb 1, 2029under 3 values—
CITY OF HOLSTEINIA0021954IASewage plant—Chloride [as Cl]daily maximum 629 mg/L, newFeb 1, 2029under 3 values—
REAGENT CHEMICAL & RESEARCH INCTX0125369TXIndustrial.046 MGDChloride [as Cl]daily maximum 1908 mg/L, newMar 1, 2029317 mg/L (3 values)0.166×
CITY OF WOODBINEIA0032387IASewage plant—Chloride [as Cl]30-day average 760 mg/L, newMay 1, 2029under 3 values—
CITY OF WOODBINEIA0032387IASewage plant—Chloride [as Cl]30-day average 9631 lb/d, newMay 1, 2029under 3 values—
CITY OF WOODBINEIA0032387IASewage plant—Chloride [as Cl]daily maximum 760 mg/L, newMay 1, 2029under 3 values—
CITY OF WOODBINEIA0032387IASewage plant—Chloride [as Cl]daily maximum 9631 lb/d, newMay 1, 2029under 3 values—
STUDY BUTTE WATER SUPPLY CORPORATIONTX0133183TXIndustrial.2 MGDChloride [as Cl]daily maximum 1664 mg/L, newJun 1, 2029982 mg/L (11 values)0.59×
CAMP EWALUIA0079839IAIndustrial.022 MGDChloride [as Cl]30-day average 629 mg/L, newJun 1, 2029under 3 values—
CAMP EWALUIA0079839IAIndustrial.022 MGDChloride [as Cl]30-day average 68 lb/d, newJun 1, 2029under 3 values—
CAMP EWALUIA0079839IAIndustrial.022 MGDChloride [as Cl]daily maximum 629 mg/L, newJun 1, 2029under 3 values—
CAMP EWALUIA0079839IAIndustrial.022 MGDChloride [as Cl]daily maximum 68 lb/d, newJun 1, 2029under 3 values—
CITY OF WOOLSTOCKIA0061310IASewage plant—Chloride [as Cl]30-day average 412 mg/L, newJul 1, 2029under 3 values—
CITY OF WOOLSTOCKIA0061310IASewage plant—Chloride [as Cl]30-day average 1073 lb/d, newJul 1, 2029under 3 values—
CITY OF WOOLSTOCKIA0061310IASewage plant—Chloride [as Cl]daily maximum 1646 lb/d, newJul 1, 2029under 3 values—
CITY OF WOOLSTOCKIA0061310IASewage plant—Chloride [as Cl]daily maximum 632 mg/L, newJul 1, 2029under 3 values—
CITY OF GRANVILLEIA0043486IASewage plant—Chloride [as Cl]30-day average 409 mg/L, newAug 1, 2029under 3 values—
CITY OF GRANVILLEIA0043486IASewage plant—Chloride [as Cl]30-day average 955 lb/d, newAug 1, 2029under 3 values—
CITY OF GRANVILLEIA0043486IASewage plant—Chloride [as Cl]daily maximum 1477 lb/d, newAug 1, 2029under 3 values—
CITY OF GRANVILLEIA0043486IASewage plant—Chloride [as Cl]daily maximum 632 mg/L, newAug 1, 2029under 3 values—
CITY OF INWOODIA0031232IASewage plant—Chloride [as Cl]30-day average 8133 lb/d, newAug 1, 2029under 3 values—
CITY OF INWOODIA0031232IASewage plant—Chloride [as Cl]30-day average 398 mg/L, newAug 1, 2029under 3 values—
CITY OF INWOODIA0031232IASewage plant—Chloride [as Cl]daily maximum 645 mg/L, newAug 1, 2029under 3 values—
CITY OF INWOODIA0031232IASewage plant—Chloride [as Cl]daily maximum 13170 lb/d, newAug 1, 2029under 3 values—
Traer Municipal UtilitiesIA0035033IASewage plant.608 MGDChloride [as Cl]30-day average 709 mg/L, newAug 1, 2029under 3 values—
Traer Municipal UtilitiesIA0035033IASewage plant.608 MGDChloride [as Cl]30-day average 2855 lb/d, newAug 1, 2029under 3 values—
Traer Municipal UtilitiesIA0035033IASewage plant.608 MGDChloride [as Cl]daily maximum 3322 lb/d, newAug 1, 2029under 3 values—
Traer Municipal UtilitiesIA0035033IASewage plant.608 MGDChloride [as Cl]daily maximum 709 mg/L, newAug 1, 2029under 3 values—
CITY OF PANAMAIA0071455IASewage plant.0468 MGDChloride [as Cl]30-day average 1145 lb/d, newSep 1, 2029under 3 values—
CITY OF PANAMAIA0071455IASewage plant.0468 MGDChloride [as Cl]30-day average 536 mg/L, newSep 1, 2029under 3 values—
CITY OF PANAMAIA0071455IASewage plant.0468 MGDChloride [as Cl]daily maximum 753 mg/L, newSep 1, 2029under 3 values—
CITY OF PANAMAIA0071455IASewage plant.0468 MGDChloride [as Cl]daily maximum 1607 lb/d, newSep 1, 2029under 3 values—
CITY OF WALFORDIA0062545IASewage plant.76 MGDChloride [as Cl]30-day average 389 mg/L, newSep 1, 2029under 3 values—
CITY OF WALFORDIA0062545IASewage plant.76 MGDChloride [as Cl]30-day average 1394 lb/d, newSep 1, 2029under 3 values—
CITY OF WALFORDIA0062545IASewage plant.76 MGDChloride [as Cl]daily maximum 2255 lb/d, newSep 1, 2029under 3 values—
CITY OF WALFORDIA0062545IASewage plant.76 MGDChloride [as Cl]daily maximum 629 mg/L, newSep 1, 2029under 3 values—
CITY OF FARNHAMVILLEIA0028967IASewage plant.0795 MGDChloride [as Cl]30-day average 321 lb/d, newOct 1, 2029under 3 values—
CITY OF FARNHAMVILLEIA0028967IASewage plant.0795 MGDChloride [as Cl]30-day average 389 mg/L, newOct 1, 2029under 3 values—
CITY OF FARNHAMVILLEIA0028967IASewage plant.0795 MGDChloride [as Cl]daily maximum 519 lb/d, newOct 1, 2029under 3 values—
CITY OF FARNHAMVILLEIA0028967IASewage plant.0795 MGDChloride [as Cl]daily maximum 629 mg/L, newOct 1, 2029under 3 values—
CITY OF MAPLETONIA0021288IASewage plant—Chloride [as Cl]30-day average 1020 mg/L, newOct 1, 2029under 3 values—
CITY OF MAPLETONIA0021288IASewage plant—Chloride [as Cl]30-day average 2551 lb/d, newOct 1, 2029under 3 values—
CITY OF MAPLETONIA0021288IASewage plant—Chloride [as Cl]daily maximum 1020 mg/L, newOct 1, 2029under 3 values—
CITY OF MAPLETONIA0021288IASewage plant—Chloride [as Cl]daily maximum 2551 lb/d, newOct 1, 2029under 3 values—
CITY OF PRAIRIE CITYIA0033073IASewage plant1.19 MGDChloride [as Cl]30-day average 389 mg/L, newOct 1, 2029under 3 values—
CITY OF PRAIRIE CITYIA0033073IASewage plant1.19 MGDChloride [as Cl]30-day average 2528 lb/d, newOct 1, 2029under 3 values—
CITY OF PRAIRIE CITYIA0033073IASewage plant1.19 MGDChloride [as Cl]daily maximum 629 mg/L, newOct 1, 2029under 3 values—
CITY OF PRAIRIE CITYIA0033073IASewage plant1.19 MGDChloride [as Cl]daily maximum 4091 lb/d, newOct 1, 2029under 3 values—
CITY OF PALMERIA0079308IASewage plant—Chloride [as Cl]30-day average 411 mg/L, newNov 1, 2029under 3 values—
CITY OF PALMERIA0079308IASewage plant—Chloride [as Cl]30-day average 871 lb/d, newNov 1, 2029under 3 values—
CITY OF PALMERIA0079308IASewage plant—Chloride [as Cl]daily maximum 633 mg/L, newNov 1, 2029under 3 values—
CITY OF PALMERIA0079308IASewage plant—Chloride [as Cl]daily maximum 1340 lb/d, newNov 1, 2029under 3 values—
CITY OF HORNICKIA0036501IASewage plant—Chloride [as Cl]30-day average 1134 lb/d, newDec 1, 2029under 3 values—
CITY OF HORNICKIA0036501IASewage plant—Chloride [as Cl]30-day average 389 mg/L, newDec 1, 2029under 3 values—
CITY OF HORNICKIA0036501IASewage plant—Chloride [as Cl]daily maximum 629 mg/L, newDec 1, 2029under 3 values—
CITY OF HORNICKIA0036501IASewage plant—Chloride [as Cl]daily maximum 1836 lb/d, newDec 1, 2029under 3 values—
CITY OF ODEBOLTIA0032506IASewage plant1.12 MGDChloride [as Cl]30-day average 391 mg/L, newDec 1, 2029under 3 values—
CITY OF ODEBOLTIA0032506IASewage plant1.12 MGDChloride [as Cl]30-day average 9966 lb/d, newDec 1, 2029under 3 values—
CITY OF ODEBOLTIA0032506IASewage plant1.12 MGDChloride [as Cl]daily maximum 629 mg/L, newDec 1, 2029under 3 values—
CITY OF ODEBOLTIA0032506IASewage plant1.12 MGDChloride [as Cl]daily maximum 16049 lb/d, newDec 1, 2029under 3 values—
CITY OF OSAGEIA0032956IASewage plant, major1.693 MGDChloride [as Cl]30-day average 403 mg/L, newJan 1, 2030under 3 values—
CITY OF OSAGEIA0032956IASewage plant, major1.693 MGDChloride [as Cl]30-day average 3591 lb/d, newJan 1, 2030under 3 values—
CITY OF OSAGEIA0032956IASewage plant, major1.693 MGDChloride [as Cl]daily maximum 631 mg/L, newJan 1, 2030under 3 values—
CITY OF OSAGEIA0032956IASewage plant, major1.693 MGDChloride [as Cl]daily maximum 5635 lb/d, newJan 1, 2030under 3 values—
CITY OF HULLIA0020991IASewage plant.9 MGDChloride [as Cl]30-day average 403 mg/L, newMay 1, 2030under 3 values—
CITY OF HULLIA0020991IASewage plant.9 MGDChloride [as Cl]30-day average 2317 lb/d, newMay 1, 2030under 3 values—
CITY OF HULLIA0020991IASewage plant.9 MGDChloride [as Cl]daily maximum 631 mg/L, newMay 1, 2030under 3 values—
CITY OF HULLIA0020991IASewage plant.9 MGDChloride [as Cl]daily maximum 3679 lb/d, newMay 1, 2030under 3 values—
City of PrimgharIA0033031IASewage plant—Chloride [as Cl]30-day average 1746 lb/d, newMay 1, 2030under 3 values—
City of PrimgharIA0033031IASewage plant—Chloride [as Cl]30-day average 418 mg/L, newMay 1, 2030under 3 values—
City of PrimgharIA0033031IASewage plant—Chloride [as Cl]daily maximum 634 mg/L, newMay 1, 2030under 3 values—
City of PrimgharIA0033031IASewage plant—Chloride [as Cl]daily maximum 2756 lb/d, newMay 1, 2030under 3 values—
CITY OF HOLY CROSSIA0025992IASewage plant.14 MGDChloride [as Cl]30-day average 405 mg/L, newJul 1, 2030under 3 values—
CITY OF HOLY CROSSIA0025992IASewage plant.14 MGDChloride [as Cl]30-day average 1890 lb/d, newJul 1, 2030under 3 values—
CITY OF HOLY CROSSIA0025992IASewage plant.14 MGDChloride [as Cl]daily maximum 631 mg/L, newJul 1, 2030under 3 values—
CITY OF HOLY CROSSIA0025992IASewage plant.14 MGDChloride [as Cl]daily maximum 2948 lb/d, newJul 1, 2030under 3 values—
CITY OF WOODWARDIA0057517IASewage plant2.266 MGDChloride [as Cl]30-day average 389 mg/L, newOct 1, 2030under 3 values—
CITY OF WOODWARDIA0057517IASewage plant2.266 MGDChloride [as Cl]30-day average 2243 lb/d, newOct 1, 2030under 3 values—
CITY OF WOODWARDIA0057517IASewage plant2.266 MGDChloride [as Cl]daily maximum 629 mg/L, newOct 1, 2030under 3 values—
CITY OF WOODWARDIA0057517IASewage plant2.266 MGDChloride [as Cl]daily maximum 3629 lb/d, newOct 1, 2030under 3 values—
CITY OF DESOTOIA0056821IASewage plant1.1 MGDChloride [as Cl]30-day average 2042 lb/d, newDec 1, 2030under 3 values—
CITY OF DESOTOIA0056821IASewage plant1.1 MGDChloride [as Cl]30-day average 389 mg/L, newDec 1, 2030under 3 values—
CITY OF DESOTOIA0056821IASewage plant1.1 MGDChloride [as Cl]daily maximum 629 mg/L, newDec 1, 2030under 3 values—
CITY OF DESOTOIA0056821IASewage plant1.1 MGDChloride [as Cl]daily maximum 3304 lb/d, newDec 1, 2030under 3 values—
SIOUX VALLEY INVESTMENTS, LLCIA0082121IAIndustrial—Chloride [as Cl]30-day average 389 mg/L, newDec 1, 2030under 3 values—
SIOUX VALLEY INVESTMENTS, LLCIA0082121IAIndustrial—Chloride [as Cl]30-day average 399 lb/d, newDec 1, 2030under 3 values—
SIOUX VALLEY INVESTMENTS, LLCIA0082121IAIndustrial—Chloride [as Cl]daily maximum 646 lb/d, newDec 1, 2030under 3 values—
SIOUX VALLEY INVESTMENTS, LLCIA0082121IAIndustrial—Chloride [as Cl]daily maximum 629 mg/L, newDec 1, 2030under 3 values—
BIG RIVER RESOURCES, LLCIA0081302IAIndustrial—Chloride [as Cl]30-day average 1987 lb/d, newFeb 1, 2031under 3 values—
BIG RIVER RESOURCES, LLCIA0081302IAIndustrial—Chloride [as Cl]30-day average 389 mg/L, newFeb 1, 2031under 3 values—
BIG RIVER RESOURCES, LLCIA0081302IAIndustrial—Chloride [as Cl]daily maximum 629 mg/L, newFeb 1, 2031under 3 values—
BIG RIVER RESOURCES, LLCIA0081302IAIndustrial—Chloride [as Cl]daily maximum 3215 lb/d, newFeb 1, 2031under 3 values—
SEVIG UTILITY COMPANYIA0077992IAIndustrial.0168 MGDChloride [as Cl]30-day average 54.5 lb/d, newFeb 1, 2031under 3 values—
SEVIG UTILITY COMPANYIA0077992IAIndustrial.0168 MGDChloride [as Cl]30-day average 389 mg/L, newFeb 1, 2031under 3 values—
SEVIG UTILITY COMPANYIA0077992IAIndustrial.0168 MGDChloride [as Cl]daily maximum 88.1 lb/d, newFeb 1, 2031under 3 values—
SEVIG UTILITY COMPANYIA0077992IAIndustrial.0168 MGDChloride [as Cl]daily maximum 629 mg/L, newFeb 1, 2031under 3 values—
Gonvick city ofMN0020541MNSewage plant.09 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), tighterJul 1, 2031under 3 values—
LAKEWOODS SEWER ASSOCIATIONIA0081426IAIndustrial.0882 MGDChloride [as Cl]30-day average 389 mg/L, newAug 1, 2031under 3 values—
LAKEWOODS SEWER ASSOCIATIONIA0081426IAIndustrial.0882 MGDChloride [as Cl]30-day average 65 lb/d, newAug 1, 2031under 3 values—
LAKEWOODS SEWER ASSOCIATIONIA0081426IAIndustrial.0882 MGDChloride [as Cl]daily maximum 629 mg/L, newAug 1, 2031under 3 values—
LAKEWOODS SEWER ASSOCIATIONIA0081426IAIndustrial.0882 MGDChloride [as Cl]daily maximum 105 lb/d, newAug 1, 2031under 3 values—
WORTH COUNTYIA0084221IAIndustrial.176 MGDChloride [as Cl]30-day average 443 lb/d, newAug 1, 2031under 3 values—
WORTH COUNTYIA0084221IAIndustrial.176 MGDChloride [as Cl]30-day average 452 mg/L, newAug 1, 2031under 3 values—
WORTH COUNTYIA0084221IAIndustrial.176 MGDChloride [as Cl]daily maximum 648 lb/d, newAug 1, 2031under 3 values—
WORTH COUNTYIA0084221IAIndustrial.176 MGDChloride [as Cl]daily maximum 640 mg/L, newAug 1, 2031under 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=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