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Plants facing new discharge limits — by state and pollutant

In Louisiana, for Nitrogen, ammonia total [as N]: 80 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Apr 1, 2028 and Oct 31, 2029 (219 limits); 19 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 90 · LA 80 · MS 63 · MD 45 · PA 45 · OH 40 · MI 33 · VA 33 · GA 22 · SC 8 · NE 7 · NY 7 · TX 7 · IN 6 · KS 6 · MO 5 · UT 5 · OR 4 · SD 4 · TN 4 · IL 3 · AR 2 · MN 2 · NJ 2 · NM 2 · CO 1

By pollutant: all · Nitrogen, ammonia total [as N] 80 · Chlorine, total residual 78 · Copper, total [as Cu] 7 · Zinc, total [as Zn] 7 · Mercury, total [as Hg] 5 · Solids, total dissolved 4 · Solids, total suspended 4 · Nitrogen, ammonia [NH3-N] 3 · BOD, 5-day, 20 deg. C 2 · Cadmium, total [as Cd] 2 · Cyanide, total [as CN] 2 · 1,2-Dichloroethane 1 · 2,3,7,8-Tetrachlorodibenzo-p-dioxin 1 · BOD, carbonaceous [5 day, 20 C] 1 · Carbon tetrachloride 1 · Chromium, hexavalent [as Cr] 1 · Heptachlor 1 · Lead, total [as Pb] 1 · Oil & Grease 1 · Phenolics, total recoverable 1 · Vinyl chloride 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
CADDO PARISH SEWERAGE DISTRICT #7LA0097276LASewage plant.45 MGDNitrogen, ammonia total [as N]monthly average 1 mg/L, tighterApr 15, 202840.5 mg/L (11 values)40.5×
CADDO PARISH SEWERAGE DISTRICT #7LA0097276LASewage plant.45 MGDNitrogen, ammonia total [as N]weekly average 2.5 mg/L, tighterApr 15, 202841.7 mg/L (11 values)16.7×
CADDO PARISH SEWERAGE DISTRICT #7LA0097276LASewage plant.45 MGDNitrogen, ammonia total [as N]monthly average 6 lb/d, tighterApr 15, 202852.3 lb/d (11 values)8.72×
PLAIN DEALING, TOWN-WWTPLA0020044LASewage plant.35 MGDNitrogen, ammonia total [as N]monthly average 1.5 mg/L, newApr 15, 20282.27 mg/L (11 values, 4 below detection)1.51×
LA DEPT OF PUBLIC SAFETY & CORRECTIONSLA0095273LASewage plant—Nitrogen, ammonia total [as N]monthly average 3 mg/L, tighterApr 15, 20283.608 mg/L (9 values)1.2×
VILLAGE OF NAPOLEONVILLELA0043966LASewage plant.2 MGDNitrogen, ammonia total [as N]monthly average 0.4 mg/L, tighterMay 1, 20280.906 mg/L (9 values)2.27×
VILLAGE OF NAPOLEONVILLELA0043966LASewage plant.2 MGDNitrogen, ammonia total [as N]weekly average 0.9 mg/L, tighterMay 1, 20281.2 mg/L (9 values)1.33×
RAYVILLE, TOWN OFLA0020559LASewage plant, major1.496 MGDNitrogen, ammonia total [as N]monthly average 16.5 lb/d, tighterJun 1, 202821 lb/d (11 values)1.27×
TOWN OF URANIALA0040991LASewage plant.28 MGDNitrogen, ammonia total [as N]monthly average 3.5 mg/L, newJun 30, 202824 mg/L (9 values)6.86×
TOWN OF URANIALA0040991LASewage plant.28 MGDNitrogen, ammonia total [as N]monthly average 10.1 lb/d, newJun 30, 202835 lb/d (9 values)3.47×
TOWN OF URANIALA0040991LASewage plant.28 MGDNitrogen, ammonia total [as N]weekly average 8.2 mg/L, newJun 30, 202828 mg/L (9 values)3.41×
Town of Farmerville- Farmerville WWTPLA0039888LASewage plant.88 MGDNitrogen, ammonia total [as N]monthly average 1.4 mg/L, tighterJul 1, 20282.895 mg/L (10 values)2.07×
Town of Farmerville- Farmerville WWTPLA0039888LASewage plant.88 MGDNitrogen, ammonia total [as N]weekly average 3.3 mg/L, tighterJul 1, 20284.855 mg/L (10 values)1.47×
Town of Farmerville- Farmerville WWTPLA0039888LASewage plant.88 MGDNitrogen, ammonia total [as N]monthly average 10.1 lb/d, tighterJul 1, 202810.87 lb/d (10 values)1.08×
ST. MARY PARISH WATER & SEWER COMMISSION #3LA0065552LASewage plant.3 MGDNitrogen, ammonia total [as N]monthly average 1.7 mg/L, newJul 15, 20287.86 mg/L (9 values)4.62×
ST. MARY PARISH WATER & SEWER COMMISSION #3LA0065552LASewage plant.3 MGDNitrogen, ammonia total [as N]weekly average 3.9 mg/L, newJul 15, 20288.13 mg/L (9 values)2.08×
ST. MARY PARISH WATER & SEWER COMMISSION #3LA0065552LASewage plant.3 MGDNitrogen, ammonia total [as N]monthly average 4.8 lb/d, newJul 15, 20288.974 lb/d (9 values)1.87×
Thibodaux City of - North Thibodaux WWTPLA0127208LASewage plant, major3 MGDNitrogen, ammonia total [as N]monthly average 1.1 mg/L, newAug 1, 20282.955 mg/L (12 values)2.69×
TOWN OF MORGANZALA0020028LASewage plant.235 MGDNitrogen, ammonia total [as N]monthly average 1.6 mg/L, newAug 1, 20282.2 mg/L (11 values)1.38×
Thibodaux City of - North Thibodaux WWTPLA0127208LASewage plant, major3 MGDNitrogen, ammonia total [as N]monthly average 13.8 lb/d, newAug 1, 202814.5 lb/d (12 values)1.05×
TOWN OF JONESBOROLA0038547LASewage plant.12 MGDNitrogen, ammonia total [as N]monthly average 2.4 mg/L, newSep 1, 202812.4 mg/L (9 values)5.17×
TOWN OF JONESBOROLA0038547LASewage plant.12 MGDNitrogen, ammonia total [as N]monthly average 6.1 lb/d, newSep 1, 202815.4 lb/d (9 values)2.52×
TOWN OF JONESBOROLA0038547LASewage plant.12 MGDNitrogen, ammonia total [as N]weekly average 5.5 mg/L, newSep 1, 202812.4 mg/L (9 values)2.25×
TOWN OF SIBLEYLA0075396LASewage plant.13 MGDNitrogen, ammonia total [as N]monthly average 2.6 mg/L, newSep 1, 20283.5 mg/L (9 values)1.35×
HESSMER, VILLAGE OFLA0046469LASewage plant.086 MGDNitrogen, ammonia total [as N]monthly average 2.1 mg/L (Jan, Feb, Mar, Nov, Dec), tighterOct 1, 20282.55 mg/L (5 values, 2 below detection)1.21×
Crowley City ofLA0041254LASewage plant, major3.5 MGDNitrogen, ammonia total [as N]monthly average 0.8 mg/L, tighterNov 1, 20282.93 mg/L (11 values)3.66×
Crowley City ofLA0041254LASewage plant, major3.5 MGDNitrogen, ammonia total [as N]weekly average 2.1 mg/L, tighterNov 1, 20284.47 mg/L (11 values)2.13×
Crowley City ofLA0041254LASewage plant, major3.5 MGDNitrogen, ammonia total [as N]monthly average 24 lb/d, tighterNov 1, 202845 lb/d (11 values)1.87×
Newellton Town of - Town of Newellton WWTPLA0020095LASewage plant.72 MGDNitrogen, ammonia total [as N]monthly average 0.1 mg/L, tighterDec 1, 20284.16 mg/L (5 values, 1 below detection)41.6×
Newellton Town of - Town of Newellton WWTPLA0020095LASewage plant.72 MGDNitrogen, ammonia total [as N]weekly average 0.4 mg/L, tighterDec 1, 20284.43 mg/L (5 values, 1 below detection)11.1×
Newellton Town of - Town of Newellton WWTPLA0020095LASewage plant.72 MGDNitrogen, ammonia total [as N]monthly average 0.7 lb/d, tighterDec 1, 20280.83 lb/d (5 values)1.19×
Iowa Town of SD #1LA0043605LASewage plant.5 MGDNitrogen, ammonia total [as N]monthly average 4.2 mg/L, tighterFeb 1, 20295.43 mg/L (11 values, 2 below detection)1.29×
Iowa Town of SD #1LA0043605LASewage plant.5 MGDNitrogen, ammonia total [as N]weekly average 7.6 mg/L, tighterFeb 1, 20299.58 mg/L (11 values, 2 below detection)1.26×
Brusly Town ofLA0068241LASewage plant.7 MGDNitrogen, ammonia total [as N]weekly average 2.8 mg/L, tighterApr 1, 20293.8 mg/L (9 values, 2 below detection)1.36×
Brusly Town ofLA0068241LASewage plant.7 MGDNitrogen, ammonia total [as N]monthly average 2.8 mg/L, tighterApr 1, 20293.67 mg/L (9 values, 2 below detection)1.31×
OAKDALE, CITY OFLA0033430LASewage plant, major.79 MGDNitrogen, ammonia total [as N]monthly average 3.1 mg/L, tighterAug 1, 20296.01 mg/L (11 values)1.94×
OAKDALE, CITY OFLA0033430LASewage plant, major.79 MGDNitrogen, ammonia total [as N]weekly average 7.4 mg/L, tighterAug 1, 20298.08 mg/L (11 values)1.09×
GOLDEN RANCH FARMS, LLC - C-STAR RANCH SITE 2LA0127760LAIndustrial—Nitrogen, ammonia total [as N]monthly average 3.1 mg/L, tighterSep 1, 20293.68 mg/L (3 values)1.19×
VILLAGE OF DOYLINELA0075400LASewage plant.11 MGDNitrogen, ammonia total [as N]monthly average 1.8 mg/L, newApr 1, 20280.267 mg/L (11 values, 4 below detection)0.148×
VILLAGE OF DOYLINELA0075400LASewage plant.11 MGDNitrogen, ammonia total [as N]weekly average 4.3 mg/L, newApr 1, 20280.281 mg/L (11 values, 4 below detection)0.0653×
VILLAGE OF DOYLINELA0075400LASewage plant.11 MGDNitrogen, ammonia total [as N]monthly average 1.7 lb/d, newApr 1, 20280.08 lb/d (11 values, 4 below detection)0.0471×
VILLAGE OF HARRISONBURGLA0043958LASewage plant.125 MGDNitrogen, ammonia total [as N]monthly average 2 lb/d, tighterApr 1, 20280.01 lb/d (10 values)0.005×
LAFAYETTE CONSOLIDATED GOVERNMENT- WESTPOINT ESTATESLA0127640LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 2.1 mg/L, tighterApr 1, 2028under 3 values—
LAFAYETTE CONSOLIDATED GOVERNMENT- WESTPOINT ESTATESLA0127640LAIndustrial—Nitrogen, ammonia total [as N]monthly average 0.9 mg/L, tighterApr 1, 2028under 3 values—
LAFAYETTE CONSOLIDATED GOVERNMENT- WESTPOINT ESTATESLA0127640LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1 lb/d, tighterApr 1, 2028under 3 values—
ST MARY PARISH GOVERNMENTLA0056227LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 5.2 mg/L, tighterApr 1, 2028under 3 values—
ST MARY PARISH GOVERNMENTLA0056227LAIndustrial—Nitrogen, ammonia total [as N]monthly average 2.2 mg/L, tighterApr 1, 2028under 3 values—
VILLAGE OF HARRISONBURGLA0043958LASewage plant.125 MGDNitrogen, ammonia total [as N]monthly average 1.9 mg/L, tighterApr 1, 20281 mg/L (10 values, 8 below detection)—
LA DEPT OF PUBLIC SAFETY & CORRECTIONSLA0095273LASewage plant—Nitrogen, ammonia total [as N]weekly average 7 mg/L, tighterApr 15, 20286.89 mg/L (9 values)0.984×
LA DEPT OF PUBLIC SAFETY & CORRECTIONSLA0095273LASewage plant—Nitrogen, ammonia total [as N]monthly average 6.9 lb/d, tighterApr 15, 20284.549 lb/d (9 values)0.659×
PLAIN DEALING, TOWN-WWTPLA0020044LASewage plant.35 MGDNitrogen, ammonia total [as N]monthly average 6.4 lb/d, newApr 15, 20282.41 lb/d (11 values)0.377×
GOLDEN RANCH FARMS LLC - SITE 1LA0127583LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 11.8 mg/L, tighterApr 15, 2028under 3 values—
GOLDEN RANCH FARMS LLC - SITE 1LA0127583LAIndustrial—Nitrogen, ammonia total [as N]monthly average 4.97 mg/L, tighterApr 15, 2028under 3 values—
PLAIN DEALING, TOWN-WWTPLA0020044LASewage plant.35 MGDNitrogen, ammonia total [as N]daily maximum 3.6 mg/L, newApr 15, 2028under 3 values—
POLLOCK WWTPLA0098558LASewage plant.9 MGDNitrogen, ammonia total [as N]monthly average 6 lb/d, tighterMay 1, 20285.59 lb/d (9 values)0.932×
VILLAGE OF NAPOLEONVILLELA0043966LASewage plant.2 MGDNitrogen, ammonia total [as N]monthly average 0.9 lb/d, tighterMay 1, 20280.729 lb/d (9 values)0.81×
BEAU CHENE HOMEOWNERS ASSOCIATION INC.LA0044377LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 3.1 mg/L, tighterMay 1, 20281.2 mg/L (9 values, 1 below detection)0.387×
BEAU CHENE HOMEOWNERS ASSOCIATION INC.LA0044377LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.3 mg/L, tighterMay 1, 20280.5 mg/L (9 values, 5 below detection)—
BEAU CHENE HOMEOWNERS ASSOCIATION INC.LA0044377LAIndustrial—Nitrogen, ammonia total [as N]monthly average 6.5 lb/d, tighterMay 1, 20281.3 lb/d (9 values, 5 below detection)—
CULLEN, TOWN OFLA0032301LASewage plant.3 MGDNitrogen, ammonia total [as N]monthly average 5.2 lb/d, tighterMay 1, 2028under 3 values—
CULLEN, TOWN OFLA0032301LASewage plant.3 MGDNitrogen, ammonia total [as N]monthly average 2.1 mg/L, tighterMay 1, 2028under 3 values—
CULLEN, TOWN OFLA0032301LASewage plant.3 MGDNitrogen, ammonia total [as N]weekly average 5 mg/L, tighterMay 1, 2028under 3 values—
POLLOCK WWTPLA0098558LASewage plant.9 MGDNitrogen, ammonia total [as N]monthly average 0.8 mg/L, tighterMay 1, 20281 mg/L (9 values, 9 below detection)—
POLLOCK WWTPLA0098558LASewage plant.9 MGDNitrogen, ammonia total [as N]weekly average 2 mg/L, tighterMay 1, 20281 mg/L (9 values, 9 below detection)—
ST. JOHN THE BAPTIST PARISHLA0065951LASewage plant.25 MGDNitrogen, ammonia total [as N]monthly average 8.3 lb/d, newMay 1, 2028under 3 values—
ST. JOHN THE BAPTIST PARISHLA0065951LASewage plant.25 MGDNitrogen, ammonia total [as N]monthly average 4 mg/L, newMay 1, 2028under 3 values—
ST. JOHN THE BAPTIST PARISHLA0065951LASewage plant.25 MGDNitrogen, ammonia total [as N]weekly average 9.5 mg/L, newMay 1, 2028under 3 values—
HEBERT'S MEAT MARKET & SLAUGHTER HOUSE, LLCLA0125644LAIndustrial—Nitrogen, ammonia total [as N]monthly average 0.03 lb/d, tighterMay 15, 20280.01 lb/d (9 values)0.333×
HEBERT'S MEAT MARKET & SLAUGHTER HOUSE, LLCLA0125644LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 0.07 lb/d, tighterMay 15, 20280.01 lb/d (9 values)0.143×
RAYVILLE, TOWN OFLA0020559LASewage plant, major1.496 MGDNitrogen, ammonia total [as N]monthly average 2 mg/L, tighterJun 1, 20281.59 mg/L (11 values)0.795×
RAYVILLE, TOWN OFLA0020559LASewage plant, major1.496 MGDNitrogen, ammonia total [as N]weekly average 4.7 mg/L, tighterJun 1, 20282.94 mg/L (11 values)0.626×
BOSSIER CITYLA0053716LASewage plant, major12 MGDNitrogen, ammonia total [as N]weekly average 5 mg/L, newJun 1, 20282.51 mg/L (11 values)0.502×
BOSSIER CITYLA0053716LASewage plant, major12 MGDNitrogen, ammonia total [as N]monthly average 2.1 mg/L, newJun 1, 20280.62 mg/L (11 values)0.295×
Town of JenaLA0033260LASewage plant, major1.4 MGDNitrogen, ammonia total [as N]monthly average 19.9 lb/d, tighterJun 1, 20285.5 lb/d (11 values)0.276×
BOSSIER CITYLA0053716LASewage plant, major12 MGDNitrogen, ammonia total [as N]monthly average 212 lb/d, newJun 1, 202822 lb/d (11 values)0.104×
GREATER OUACHITA WATER CO.,INCLA0110485LAIndustrial—Nitrogen, ammonia total [as N]monthly average 2 mg/L, tighterJun 1, 20280.031 mg/L (9 values, 1 below detection)0.0155×
GREATER OUACHITA WATER CO.,INCLA0110485LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 4.7 mg/L, tighterJun 1, 20280.04 mg/L (9 values, 1 below detection)0.00851×
GREATER OUACHITA WATER CO.,INCLA0110485LAIndustrial—Nitrogen, ammonia total [as N]monthly average 9.5 lb/d, tighterJun 1, 20280.075 lb/d (9 values)0.00789×
GLENMORA, TOWN OFLA0054925LASewage plant.21 MGDNitrogen, ammonia total [as N]monthly average 5.9 mg/L, tighterJun 1, 20281 mg/L (9 values, 8 below detection)—
GLENMORA, TOWN OFLA0054925LASewage plant.21 MGDNitrogen, ammonia total [as N]monthly average 17 lb/d, tighterJun 1, 20281 lb/d (9 values, 6 below detection)—
GLENMORA, TOWN OFLA0054925LASewage plant.21 MGDNitrogen, ammonia total [as N]weekly average 14 mg/L, tighterJun 1, 20281 mg/L (9 values, 7 below detection)—
Town of JenaLA0033260LASewage plant, major1.4 MGDNitrogen, ammonia total [as N]monthly average 1.7 mg/L, tighterJun 1, 20281 mg/L (11 values, 8 below detection)—
Town of JenaLA0033260LASewage plant, major1.4 MGDNitrogen, ammonia total [as N]weekly average 4 mg/L, tighterJun 1, 20281 mg/L (11 values, 8 below detection)—
WEST BATON ROUGE NATURAL GAS & WATER SYSTEMSLA0122131LASewage plant.125 MGDNitrogen, ammonia total [as N]monthly average 1.3 lb/d, newJun 15, 2028under 3 values—
WEST BATON ROUGE NATURAL GAS & WATER SYSTEMSLA0122131LASewage plant.125 MGDNitrogen, ammonia total [as N]monthly average 1.2 mg/L, newJun 15, 2028under 3 values—
WEST BATON ROUGE NATURAL GAS & WATER SYSTEMSLA0122131LASewage plant.125 MGDNitrogen, ammonia total [as N]weekly average 2.9 mg/L, newJun 15, 2028under 3 values—
TOWN OF LIVONIALA0124851LASewage plant0 MGDNitrogen, ammonia total [as N]monthly average 2 lb/d, newJul 1, 20281.87 lb/d (11 values)0.935×
Utilities, Inc. of LA- Arrowwood Regional WWTPLA0066559LAIndustrial, major—Nitrogen, ammonia total [as N]monthly average 3.1 mg/L, tighterJul 1, 20280.44 mg/L (11 values, 2 below detection)0.142×
Utilities, Inc. of LA- Arrowwood Regional WWTPLA0066559LAIndustrial, major—Nitrogen, ammonia total [as N]monthly average 51 lb/d, tighterJul 1, 20285.68 lb/d (11 values)0.111×
City of Ruston- Northside Wastewater Treatment PlantLA0036323LASewage plant, major4 MGDNitrogen, ammonia total [as N]monthly average 1.7 mg/L, tighterJul 1, 20280.111 mg/L (12 values)0.0653×
City of Ruston- Northside Wastewater Treatment PlantLA0036323LASewage plant, major4 MGDNitrogen, ammonia total [as N]weekly average 4 mg/L, tighterJul 1, 20280.25 mg/L (12 values)0.0625×
Utilities, Inc. of LA- Arrowwood Regional WWTPLA0066559LAIndustrial, major—Nitrogen, ammonia total [as N]daily maximum 7.3 mg/L, tighterJul 1, 20280.44 mg/L (11 values, 2 below detection)0.0603×
City of Ruston- Northside Wastewater Treatment PlantLA0036323LASewage plant, major4 MGDNitrogen, ammonia total [as N]monthly average 85 lb/d, tighterJul 1, 20282.715 lb/d (12 values)0.0319×
GREATER OUACHITA WATER COMPANYLA0101834LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.8 mg/L, tighterJul 1, 20280.031 mg/L (9 values, 1 below detection)0.0172×
GREATER OUACHITA WATER COMPANYLA0101834LAIndustrial—Nitrogen, ammonia total [as N]monthly average 7.2 lb/d, tighterJul 1, 20280.11 lb/d (9 values)0.0153×
GREATER OUACHITA WATER COMPANYLA0101834LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 4.4 mg/L, tighterJul 1, 20280.031 mg/L (9 values, 1 below detection)0.00705×
RAPIDES PARISH SEWERAGE DISTRICT #1LA0039021LASewage plant.14 MGDNitrogen, ammonia total [as N]monthly average 2.2 lb/d, tighterJul 1, 20281 lb/d (9 values, 8 below detection)—
RAPIDES PARISH SEWERAGE DISTRICT #1LA0039021LASewage plant.14 MGDNitrogen, ammonia total [as N]monthly average 1.9 mg/L, tighterJul 1, 20281 mg/L (9 values, 9 below detection)—
RAPIDES PARISH SEWERAGE DISTRICT #1LA0039021LASewage plant.14 MGDNitrogen, ammonia total [as N]weekly average 4.4 mg/L, tighterJul 1, 20281 mg/L (9 values, 7 below detection)—
TOWN OF LIVONIALA0124851LASewage plant0 MGDNitrogen, ammonia total [as N]monthly average 1.6 mg/L, newJul 1, 20281 mg/L (11 values, 10 below detection)—
TOWN OF LIVONIALA0124851LASewage plant0 MGDNitrogen, ammonia total [as N]weekly average 3.7 mg/L, newJul 1, 20281 mg/L (11 values, 10 below detection)—
ACADIA PARISH POLICE JURYLA0065676LASewage plant—Nitrogen, ammonia total [as N]monthly average 0.77 mg/L, tighterJul 15, 20280.42 mg/L (3 values)0.545×
ACADIA PARISH POLICE JURYLA0065676LASewage plant—Nitrogen, ammonia total [as N]daily maximum 1.8 mg/L, tighterJul 15, 20280.42 mg/L (3 values)0.233×
LAKE ARTHUR, TOWN OFLA0020133LASewage plant.75 MGDNitrogen, ammonia total [as N]weekly average 3 mg/L, tighterJul 15, 20280.29 mg/L (9 values)0.0967×
Office of Juvenile JusticeLA0049620LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.8 lb/d, newJul 15, 20280.00001315 lb/d (5 values)0.00000731×
Office of Juvenile JusticeLA0049620LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.8 mg/L, newJul 15, 20280 mg/L (5 values)0×
Office of Juvenile JusticeLA0049620LAIndustrial—Nitrogen, ammonia total [as N]weekly average 4.4 mg/L, newJul 15, 20280 mg/L (5 values)0×
American Water Operations and Maintenance, LLC. - North Fort Polk WWTPLA0032239LAIndustrial, major—Nitrogen, ammonia total [as N]daily maximum 6.5 mg/L, tighterJul 15, 20281 mg/L (12 values, 12 below detection)—
American Water Operations and Maintenance, LLC. - North Fort Polk WWTPLA0032239LAIndustrial, major—Nitrogen, ammonia total [as N]monthly average 2.7 mg/L, tighterJul 15, 20281 mg/L (12 values, 12 below detection)—
American Water Operations and Maintenance, LLC. - North Fort Polk WWTPLA0032239LAIndustrial, major—Nitrogen, ammonia total [as N]monthly average 39 lb/d, tighterJul 15, 20283.16 lb/d (12 values, 12 below detection)—
LAKE ARTHUR, TOWN OFLA0020133LASewage plant.75 MGDNitrogen, ammonia total [as N]monthly average 8 lb/d, tighterJul 15, 20280.709 lb/d (9 values, 6 below detection)—
LAKE ARTHUR, TOWN OFLA0020133LASewage plant.75 MGDNitrogen, ammonia total [as N]monthly average 1.3 mg/L, tighterJul 15, 20280.153 mg/L (9 values, 6 below detection)—
TOWN OF MORGANZALA0020028LASewage plant.235 MGDNitrogen, ammonia total [as N]weekly average 3.7 mg/L, newAug 1, 20283.41 mg/L (11 values)0.922×
TOWN OF MORGANZALA0020028LASewage plant.235 MGDNitrogen, ammonia total [as N]monthly average 2 lb/d, newAug 1, 20281.8 lb/d (11 values)0.9×
Thibodaux City of - North Thibodaux WWTPLA0127208LASewage plant, major3 MGDNitrogen, ammonia total [as N]weekly average 7.7 mg/L, newAug 1, 20284.2 mg/L (12 values)0.545×
MAGNOLIA WATER UTILITY OPERATING CO., LLCLA0081418LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.7 mg/L, newAug 1, 20280.28 mg/L (9 values, 3 below detection)0.165×
MAGNOLIA WATER UTILITY OPERATING CO., LLCLA0081418LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 4 mg/L, newAug 1, 20280.47 mg/L (9 values)0.117×
ST TAMMANY PAR-SD #4LA0043583LASewage plant.1 MGDNitrogen, ammonia total [as N]weekly average 6.2 mg/L, tighterAug 1, 20280.3 mg/L (9 values, 2 below detection)0.0484×
UTILITIES INC., OF LOUISIANALA0051179LAIndustrial—Nitrogen, ammonia total [as N]monthly average 2.8 lb/d, tighterAug 1, 20280.08 lb/d (3 values)0.0286×
MAGNOLIA WATER UTILITY OPERATING CO., LLCLA0081418LAIndustrial—Nitrogen, ammonia total [as N]monthly average 4.2 lb/d, newAug 1, 20280.097 lb/d (9 values, 3 below detection)0.0231×
BOISE CASCADE WOOD PRODUCTS LLCLA0004901LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 5.5 mg/L, tighterAug 1, 20280.5 mg/L (9 values, 8 below detection)—
BOISE CASCADE WOOD PRODUCTS LLCLA0004901LAIndustrial—Nitrogen, ammonia total [as N]monthly average 2.3 mg/L, tighterAug 1, 20280.5 mg/L (9 values, 8 below detection)—
ST TAMMANY PAR-SD #4LA0043583LASewage plant.1 MGDNitrogen, ammonia total [as N]monthly average 2.6 mg/L, tighterAug 1, 20280.2 mg/L (9 values, 5 below detection)—
ST TAMMANY PAR-SD #4LA0043583LASewage plant.1 MGDNitrogen, ammonia total [as N]monthly average 3.5 lb/d, tighterAug 1, 20280.2 lb/d (9 values, 5 below detection)—
UTILITIES INC., OF LOUISIANALA0051179LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 3.8 mg/L, tighterAug 1, 20280.12 mg/L (3 values, 2 below detection)—
UTILITIES INC., OF LOUISIANALA0051179LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.6 mg/L, tighterAug 1, 20280.12 mg/L (3 values, 2 below detection)—
MAGNOLIA WATER UTILITY OPERATING CO., LLC - SILVER HILLS & THE ESTATES SUBDLA0127133LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 6.5 mg/L, newAug 15, 20284.6 mg/L (9 values)0.708×
MAGNOLIA WATER UTILITY OPERATING CO., LLC - SILVER HILLS & THE ESTATES SUBDLA0127133LAIndustrial—Nitrogen, ammonia total [as N]monthly average 2.7 mg/L, newAug 15, 20281.8 mg/L (9 values, 2 below detection)0.667×
TOWN OF HAYNESVILLELA0034614LASewage plant.6 MGDNitrogen, ammonia total [as N]monthly average 1.3 mg/L, tighterAug 15, 20280.645 mg/L (9 values, 1 below detection)0.496×
TOWN OF HAYNESVILLELA0034614LASewage plant.6 MGDNitrogen, ammonia total [as N]monthly average 5.4 lb/d, tighterAug 15, 20281.3 lb/d (9 values, 1 below detection)0.241×
TOWN OF HAYNESVILLELA0034614LASewage plant.6 MGDNitrogen, ammonia total [as N]weekly average 3.1 mg/L, tighterAug 15, 20280.636 mg/L (9 values, 1 below detection)0.205×
MAGNOLIA WATER UTILITY OPERATING CO., LLC - SILVER HILLS & THE ESTATES SUBDLA0127133LAIndustrial—Nitrogen, ammonia total [as N]monthly average 5.9 lb/d, newAug 15, 20280.734 lb/d (9 values, 2 below detection)0.124×
City of Bogalusa- WWTPLA0046515LASewage plant, major15 MGDNitrogen, ammonia total [as N]weekly average 10.7 mg/L, tighterAug 15, 20280.7 mg/L (11 values)0.0654×
City of Bogalusa- WWTPLA0046515LASewage plant, major15 MGDNitrogen, ammonia total [as N]monthly average 225 lb/d, tighterAug 15, 202811.1 lb/d (11 values, 10 below detection)—
City of Bogalusa- WWTPLA0046515LASewage plant, major15 MGDNitrogen, ammonia total [as N]monthly average 4.5 mg/L, tighterAug 15, 20280.4 mg/L (11 values, 10 below detection)—
WASTE MANAGEMENT OF LOUISIANA LLCLA0075817LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 5.9 mg/L, tighterAug 15, 2028under 3 values—
WASTE MANAGEMENT OF LOUISIANA LLCLA0075817LAIndustrial—Nitrogen, ammonia total [as N]monthly average 2.5 mg/L, tighterAug 15, 2028under 3 values—
TOWN OF SIBLEYLA0075396LASewage plant.13 MGDNitrogen, ammonia total [as N]daily maximum 6.1 mg/L, newSep 1, 20283.56 mg/L (9 values)0.584×
TOWN OF SIBLEYLA0075396LASewage plant.13 MGDNitrogen, ammonia total [as N]monthly average 4.3 lb/d, newSep 1, 20281.66 lb/d (9 values)0.386×
City of LeesvilleLA0043575LASewage plant, major2.1 MGDNitrogen, ammonia total [as N]monthly average 36.6 lb/d, tighterSep 1, 20289.11 lb/d (11 values)0.249×
CITY OF ABBEVILLELA0039748LASewage plant, major1.6 MGDNitrogen, ammonia total [as N]monthly average 1.2 mg/L, tighterSep 1, 20280.127 mg/L (10 values)0.106×
CITY OF ABBEVILLELA0039748LASewage plant, major1.6 MGDNitrogen, ammonia total [as N]monthly average 26 lb/d, tighterSep 1, 20282.5 lb/d (10 values)0.0962×
City of LeesvilleLA0043575LASewage plant, major2.1 MGDNitrogen, ammonia total [as N]daily maximum 5 mg/L, tighterSep 1, 20281 mg/L (11 values, 7 below detection)—
City of LeesvilleLA0043575LASewage plant, major2.1 MGDNitrogen, ammonia total [as N]monthly average 2.1 mg/L, tighterSep 1, 20281 mg/L (11 values, 7 below detection)—
CLAIBORNE PARISH DETENTIONLA0111163LASewage plant—Nitrogen, ammonia total [as N]monthly average 0.4 lb/d, newSep 1, 20280.032 lb/d (10 values, 9 below detection)—
CLAIBORNE PARISH DETENTIONLA0111163LASewage plant—Nitrogen, ammonia total [as N]monthly average 0.5 mg/L, newSep 1, 20280.1 mg/L (10 values, 9 below detection)—
CLAIBORNE PARISH DETENTIONLA0111163LASewage plant—Nitrogen, ammonia total [as N]weekly average 1.1 mg/L, newSep 1, 20280.1 mg/L (10 values, 9 below detection)—
WEBSTER PARISH LANDFILL, LLCLA0074276LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 8.8 mg/L, tighterSep 1, 2028under 3 values—
WEBSTER PARISH LANDFILL, LLCLA0074276LAIndustrial—Nitrogen, ammonia total [as N]monthly average 3.7 mg/L, tighterSep 1, 2028under 3 values—
MER ROUGE, VILLAGE OFLA0043974LASewage plant.5 MGDNitrogen, ammonia total [as N]monthly average 1.8 mg/L, tighterSep 14, 20281.53 mg/L (10 values, 2 below detection)0.85×
MER ROUGE, VILLAGE OFLA0043974LASewage plant.5 MGDNitrogen, ammonia total [as N]weekly average 4.3 mg/L, tighterSep 14, 20282.37 mg/L (10 values, 2 below detection)0.551×
MER ROUGE, VILLAGE OFLA0043974LASewage plant.5 MGDNitrogen, ammonia total [as N]monthly average 7.6 lb/d, tighterSep 14, 20280.085 lb/d (10 values)0.0112×
ST. TAMMANY PARISH GOVERNMENT, TAMMANY UTILITIESLA0117676LASewage plant.5 MGDNitrogen, ammonia total [as N]monthly average 1.4 mg/L, tighterSep 15, 20280.31 mg/L (9 values, 2 below detection)0.221×
UTILITIES INC., OF LOUISIANALA0065757LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.5 mg/L, tighterSep 15, 20280.25 mg/L (11 values, 2 below detection)0.167×
UTILITIES INC., OF LOUISIANALA0065757LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 3.6 mg/L, tighterSep 15, 20280.37 mg/L (11 values, 2 below detection)0.103×
ST. TAMMANY PARISH GOVERNMENT, TAMMANY UTILITIESLA0117676LASewage plant.5 MGDNitrogen, ammonia total [as N]weekly average 3.4 mg/L, tighterSep 15, 20280.31 mg/L (9 values, 2 below detection)0.0912×
ST. TAMMANY PARISH GOVERNMENT, TAMMANY UTILITIESLA0117676LASewage plant.5 MGDNitrogen, ammonia total [as N]monthly average 6 lb/d, tighterSep 15, 20280.5 lb/d (9 values, 2 below detection)0.0833×
UTILITIES INC., OF LOUISIANALA0065757LAIndustrial—Nitrogen, ammonia total [as N]monthly average 4.6 lb/d, tighterSep 15, 20280.2 lb/d (11 values)0.0435×
EPPS, VILLAGE OFLA0020141LASewage plant.075 MGDNitrogen, ammonia total [as N]monthly average 2.3 lb/d, tighterSep 15, 20280.014 lb/d (6 values)0.00609×
EPPS, VILLAGE OFLA0020141LASewage plant.075 MGDNitrogen, ammonia total [as N]monthly average 1.2 mg/L, tighterSep 15, 20280.077 mg/L (6 values, 3 below detection)—
EPPS, VILLAGE OFLA0020141LASewage plant.075 MGDNitrogen, ammonia total [as N]weekly average 1.9 mg/L, tighterSep 15, 20280.1055 mg/L (6 values, 3 below detection)—
Iota Town of - WWTPLA0040142LASewage plant.8 MGDNitrogen, ammonia total [as N]monthly average 1 mg/L, tighterOct 1, 20280.64 mg/L (9 values)0.64×
HESSMER, VILLAGE OFLA0046469LASewage plant.086 MGDNitrogen, ammonia total [as N]weekly average 5 mg/L (Jan, Feb, Mar, Nov, Dec), tighterOct 1, 20282.94 mg/L (5 values, 2 below detection)0.588×
HESSMER, VILLAGE OFLA0046469LASewage plant.086 MGDNitrogen, ammonia total [as N]monthly average 2.7 lb/d (Jan, Feb, Mar, Nov, Dec), tighterOct 1, 20281.52 lb/d (5 values)0.563×
Slidell City of - Terrace Avenue WWTPLA0047180LASewage plant, major6 MGDNitrogen, ammonia total [as N]monthly average 0.7 mg/L, tighterOct 1, 20280.29 mg/L (11 values)0.414×
Iota Town of - WWTPLA0040142LASewage plant.8 MGDNitrogen, ammonia total [as N]weekly average 2.7 mg/L, tighterOct 1, 20280.8 mg/L (9 values)0.296×
Slidell City of - Terrace Avenue WWTPLA0047180LASewage plant, major6 MGDNitrogen, ammonia total [as N]monthly average 35.8 lb/d, tighterOct 1, 20289.73 lb/d (11 values)0.272×
WEST FELICIANA WASTEWATER LLCLA0122301LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.4 mg/L, newOct 1, 20280.33 mg/L (9 values)0.236×
Slidell City of - Terrace Avenue WWTPLA0047180LASewage plant, major6 MGDNitrogen, ammonia total [as N]weekly average 3.2 mg/L, tighterOct 1, 20280.47 mg/L (11 values)0.147×
WEST FELICIANA WASTEWATER LLCLA0122301LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 3.4 mg/L, newOct 1, 20280.44 mg/L (9 values)0.129×
Iota Town of - WWTPLA0040142LASewage plant.8 MGDNitrogen, ammonia total [as N]monthly average 6.9 lb/d, tighterOct 1, 20280.81 lb/d (9 values)0.117×
WEST FELICIANA WASTEWATER LLCLA0122301LAIndustrial—Nitrogen, ammonia total [as N]monthly average 1.5 lb/d, newOct 1, 20280.15 lb/d (9 values)0.1×
MARION, TOWN OFLA0043656LASewage plant.26 MGDNitrogen, ammonia total [as N]monthly average 4.2 lb/d, tighterOct 1, 20280.28 lb/d (11 values)0.0667×
City of Winnsboro - Winnsboro Municipal Treatment PlantLA0020281LASewage plant1.2 MGDNitrogen, ammonia total [as N]monthly average 13.4 lb/d, tighterOct 1, 20280.64 lb/d (9 values)0.0478×
City of Winnsboro - Winnsboro Municipal Treatment PlantLA0020281LASewage plant1.2 MGDNitrogen, ammonia total [as N]monthly average 2 mg/L, tighterOct 1, 20281 mg/L (9 values, 6 below detection)—
City of Winnsboro - Winnsboro Municipal Treatment PlantLA0020281LASewage plant1.2 MGDNitrogen, ammonia total [as N]weekly average 4.8 mg/L, tighterOct 1, 20281 mg/L (9 values, 6 below detection)—
MARION, TOWN OFLA0043656LASewage plant.26 MGDNitrogen, ammonia total [as N]monthly average 3.2 mg/L, tighterOct 1, 20281 mg/L (11 values, 8 below detection)—
MARION, TOWN OFLA0043656LASewage plant.26 MGDNitrogen, ammonia total [as N]weekly average 7.5 mg/L, tighterOct 1, 20281 mg/L (11 values, 8 below detection)—
Wayne-Sanderson Farms LLC.- Hammond Processing FacilityLA0007102LAIndustrial—Nitrogen, ammonia total [as N]monthly average 3.1 mg/L, tighterOct 15, 20280.5 mg/L (11 values)0.161×
HOUSE OF RAEFORD FARMS OF LA.LA0002844LAIndustrial, major—Nitrogen, ammonia total [as N]monthly average 30.8 lb/d, tighterNov 15, 202815.69 lb/d (11 values)0.509×
Mansfield City of - Mansfield Sewage Treatment FacilityLA0038962LASewage plant.75 MGDNitrogen, ammonia total [as N]monthly average 9.3 lb/d, newDec 1, 2028under 3 values—
Mansfield City of - Mansfield Sewage Treatment FacilityLA0038962LASewage plant.75 MGDNitrogen, ammonia total [as N]monthly average 1.5 mg/L, newDec 1, 2028under 3 values—
Mansfield City of - Mansfield Sewage Treatment FacilityLA0038962LASewage plant.75 MGDNitrogen, ammonia total [as N]weekly average 5.9 mg/L, newDec 1, 2028under 3 values—
Alexandria City of - City of Alexandria WWTPLA0041009LASewage plant, major22 MGDNitrogen, ammonia total [as N]weekly average 5 mg/L, newJan 1, 20292.95 mg/L (8 values)0.59×
Alexandria City of - City of Alexandria WWTPLA0041009LASewage plant, major22 MGDNitrogen, ammonia total [as N]monthly average 5 mg/L, newJan 1, 20292.5 mg/L (8 values)0.5×
Alexandria City of - City of Alexandria WWTPLA0041009LASewage plant, major22 MGDNitrogen, ammonia total [as N]monthly average 890 lb/d, newJan 1, 2029185.6 lb/d (8 values)0.209×
Iowa Town of SD #1LA0043605LASewage plant.5 MGDNitrogen, ammonia total [as N]monthly average 17 lb/d, tighterFeb 1, 202912.37 lb/d (11 values)0.728×
Ponchatoula City of - City of Ponchatoula Wastewater Treatment FacilityLA0044695LASewage plant, major1.4 MGDNitrogen, ammonia total [as N]weekly average 1.5 mg/L, newFeb 1, 20290.8 mg/L (7 values)0.533×
Ponchatoula City of - City of Ponchatoula Wastewater Treatment FacilityLA0044695LASewage plant, major1.4 MGDNitrogen, ammonia total [as N]monthly average 23 lb/d, newFeb 1, 20297.3 lb/d (7 values, 5 below detection)—
Ponchatoula City of - City of Ponchatoula Wastewater Treatment FacilityLA0044695LASewage plant, major1.4 MGDNitrogen, ammonia total [as N]monthly average 1.4 mg/L, newFeb 1, 20290.5 mg/L (7 values, 5 below detection)—
Brusly Town ofLA0068241LASewage plant.7 MGDNitrogen, ammonia total [as N]monthly average 16.2 lb/d, tighterApr 1, 20299.3 lb/d (9 values)0.574×
Caddo Parish Sewerage District #2LA0020320LASewage plant.25 MGDNitrogen, ammonia total [as N]monthly average 5.1 mg/L, newMay 1, 2029under 3 values—
Caddo Parish Sewerage District #2LA0020320LASewage plant.25 MGDNitrogen, ammonia total [as N]monthly average 10.7 lb/d, newMay 1, 2029under 3 values—
Caddo Parish Sewerage District #2LA0020320LASewage plant.25 MGDNitrogen, ammonia total [as N]weekly average 5.1 mg/L, newMay 1, 2029under 3 values—
Vivian Town of - WWTPLA0020061LASewage plant.9 MGDNitrogen, ammonia total [as N]monthly average 35 lb/d, newAug 1, 2029under 3 values—
Vivian Town of - WWTPLA0020061LASewage plant.9 MGDNitrogen, ammonia total [as N]monthly average 7 mg/L, newAug 1, 2029under 3 values—
Vivian Town of - WWTPLA0020061LASewage plant.9 MGDNitrogen, ammonia total [as N]weekly average 7 mg/L, newAug 1, 2029under 3 values—
GOLDEN RANCH FARMS, LLC - C-STAR RANCH SITE 2LA0127760LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 7.3 mg/L, tighterSep 1, 20293.68 mg/L (3 values)0.504×
JENSEN TUNA, INC.LA0122491LAIndustrial—Nitrogen, ammonia total [as N]monthly average 3.72 lb/d, newSep 1, 20291.175 lb/d (4 values)0.316×
JENSEN TUNA, INC.LA0122491LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 8.83 lb/d, newSep 1, 20291.175 lb/d (4 values)0.133×
PATTON SAUSAGE CO.,INC.LA0123200LAIndustrial—Nitrogen, ammonia total [as N]monthly average 0.04 lb/d, newSep 1, 20290.0015 lb/d (4 values, 1 below detection)0.0375×
PATTON SAUSAGE CO.,INC.LA0123200LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 0.1 lb/d, newSep 1, 20290.0015 lb/d (4 values, 1 below detection)0.015×
TOWN OF KINDERLA0020605LASewage plant.97 MGDNitrogen, ammonia total [as N]monthly average 2.4 mg/L (Jan, Feb, Mar, Apr, May, Dec), tighterSep 30, 20290.1 mg/L (6 values)0.0417×
WASHINGTON PARISH GOVERNMENTLA0068101LASewage plant—Nitrogen, ammonia total [as N]daily maximum 4.7 mg/L, tighterSep 30, 20290.16 mg/L (3 values, 1 below detection)0.034×
TOWN OF KINDERLA0020605LASewage plant.97 MGDNitrogen, ammonia total [as N]monthly average 12.3 lb/d (Jan, Feb, Mar, Apr, May, Dec), tighterSep 30, 20290.33 lb/d (6 values)0.0268×
TOWN OF KINDERLA0020605LASewage plant.97 MGDNitrogen, ammonia total [as N]weekly average 5.8 mg/L (Jan, Feb, Mar, Apr, May, Dec), tighterSep 30, 20290.12 mg/L (6 values)0.0207×
WASHINGTON PARISH GOVERNMENTLA0068101LASewage plant—Nitrogen, ammonia total [as N]monthly average 2 mg/L, tighterSep 30, 20290.16 mg/L (3 values, 2 below detection)—
SHREVEPORT, CITY OF - LANDFILLLA0069469LAIndustrial—Nitrogen, ammonia total [as N]monthly average 3.1 mg/L, tighterOct 1, 20290.46 mg/L (3 values)0.148×
SHREVEPORT, CITY OF - LANDFILLLA0069469LAIndustrial—Nitrogen, ammonia total [as N]daily maximum 7.3 mg/L, tighterOct 1, 20290.46 mg/L (3 values)0.063×
DUSON, TOWN OFLA0055085LASewage plant.215 MGDNitrogen, ammonia total [as N]monthly average 4.5 mg/L, tighterOct 1, 20290.069 mg/L (9 values, 3 below detection)0.0153×
DUSON, TOWN OFLA0055085LASewage plant.215 MGDNitrogen, ammonia total [as N]weekly average 10 mg/L, tighterOct 1, 20290.082 mg/L (9 values, 3 below detection)0.0082×
DUSON, TOWN OFLA0055085LASewage plant.215 MGDNitrogen, ammonia total [as N]monthly average 13 lb/d, tighterOct 1, 20290.06 lb/d (9 values, 3 below detection)0.00462×
Jonesboro Town of - East Oxidation PondLA0038539LASewage plant—Nitrogen, ammonia total [as N]monthly average 12.1 mg/L, newOct 1, 2029under 3 values—
Jonesboro Town of - East Oxidation PondLA0038539LASewage plant—Nitrogen, ammonia total [as N]monthly average 30.3 lb/d, newOct 1, 2029under 3 values—
Jonesboro Town of - East Oxidation PondLA0038539LASewage plant—Nitrogen, ammonia total [as N]weekly average 12.1 mg/L, newOct 1, 2029under 3 values—
TENSAS PARISH POLICE JURYLA0096270LASewage plant—Nitrogen, ammonia total [as N]daily maximum 6.9 mg/L, tighterOct 1, 2029under 3 values—
TENSAS PARISH POLICE JURYLA0096270LASewage plant—Nitrogen, ammonia total [as N]monthly average 2.9 mg/L, tighterOct 1, 2029under 3 values—
Entergy Arkansas, LLC- Ouachita PlantLA0112780LAIndustrial, major—Nitrogen, ammonia total [as N]daily maximum 135.2 mg/L, newOct 31, 2029under 3 values—
Entergy Arkansas, LLC- Ouachita PlantLA0112780LAIndustrial, major—Nitrogen, ammonia total [as N]monthly average 56.9 mg/L, newOct 31, 2029under 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=LA&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