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Industrial Inorganic Chemicals, La Salle, Illinois. NPDES permit IL0002623, in force until Jul 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 63 deg F | Jan, Feb, Mar, Dec |
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 93 deg F | Apr–Nov |
| pH | monthly minimum | ≥ 6.5 SU | all year |
| pH | monthly maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily maximum | ≤ 15 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ 136 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 162 lb/d | all year |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 2.1 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ .9 mg/L | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ .8 mg/L | Jun–Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.7 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.7 mg/L | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3 mg/L | Jun–Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 25.8 lb/d | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 11 lb/d | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 9.8 lb/d | Jun–Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 43.2 lb/d | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 43.2 lb/d | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 48 lb/d | Jun–Aug |
| Chloride [as Cl] | 30-day average | report only (mg/L) | all year |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | 30-day average | ≤ .83 mg/L | all year |
| Zinc, total [as Zn] | 30-day average | ≤ 1 lb/d | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year |
| Perfluorobutanoic acid (PFBA) | daily maximum | report only (ng/L) | all year |
| Perfluorobutanoic acid (PFBA) | daily maximum | report only (ng/L) | all year |
| Perfluorooctanesulfonamide (PFOSA) | daily maximum | report only (ng/L) | all year |
| Perfluorooctanesulfonamide (PFOSA) | daily maximum | report only (ng/L) | all year |
| Perfluoropentanoic acid (PFPeA) | daily maximum | report only (ng/L) | all year |
| Perfluoropentanoic acid (PFPeA) | daily maximum | report only (ng/L) | all year |
| Perfluorohexanoic acid (PFHxA) | daily maximum | report only (ng/L) | all year |
| Perfluorohexanoic acid (PFHxA) | daily maximum | report only (ng/L) | all year |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year |
| Perfluoroundecanoic acid (PFUnA) | daily maximum | report only (ng/L) | all year |
| Perfluoroundecanoic acid (PFUnA) | daily maximum | report only (ng/L) | all year |
| Perfluorododecanoic acid (PFDoA) | daily maximum | report only (ng/L) | all year |
| Perfluorododecanoic acid (PFDoA) | daily maximum | report only (ng/L) | all year |
| Perfluorotridecanoic acid (PFTrDA) | daily maximum | report only (ng/L) | all year |
| Perfluorotridecanoic acid (PFTrDA) | daily maximum | report only (ng/L) | all year |
| Perfluorotetradecanoic acid (PFTeDA) | daily maximum | report only (ng/L) | all year |
| Perfluorotetradecanoic acid (PFTeDA) | daily maximum | report only (ng/L) | all year |
| N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE) | daily maximum | report only (ng/L) | all year |
| N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE) | daily maximum | report only (ng/L) | all year |
| N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE) | daily maximum | report only (ng/L) | all year |
| N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE) | daily maximum | report only (ng/L) | all year |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | daily maximum | report only (ng/L) | all year |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | daily maximum | report only (ng/L) | all year |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | daily maximum | report only (ng/L) | all year |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | daily maximum | report only (ng/L) | all year |
| Perfluorobutanesulfonic acid (PFBS) | daily maximum | report only (ng/L) | all year |
| Perfluorobutanesulfonic acid (PFBS) | daily maximum | report only (ng/L) | all year |
| Perfluorodecanesulfonic acid (PFDS) | daily maximum | report only (ng/L) | all year |
| Perfluorodecanesulfonic acid (PFDS) | daily maximum | report only (ng/L) | all year |
| Perfluoroheptanesulfonic acid (PFHpS) | daily maximum | report only (ng/L) | all year |
| Perfluoroheptanesulfonic acid (PFHpS) | daily maximum | report only (ng/L) | all year |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year |
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | daily maximum | report only (ng/L) | all year |
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | daily maximum | report only (ng/L) | all year |
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | daily maximum | report only (ng/L) | all year |
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | daily maximum | report only (ng/L) | all year |
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | daily maximum | report only (ng/L) | all year |
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | daily maximum | report only (ng/L) | all year |
| Perfluoropentanesulfonic acid (PFPeS) | daily maximum | report only (ng/L) | all year |
| Perfluoropentanesulfonic acid (PFPeS) | daily maximum | report only (ng/L) | all year |
| Perfluorononanesulfonic acid (PFNS) | daily maximum | report only (ng/L) | all year |
| Perfluorononanesulfonic acid (PFNS) | daily maximum | report only (ng/L) | all year |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | daily maximum | report only (ng/L) | all year |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | daily maximum | report only (ng/L) | all year |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | daily maximum | report only (ng/L) | all year |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | daily maximum | report only (ng/L) | all year |
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA) | daily maximum | report only (ng/L) | all year |
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA) | daily maximum | report only (ng/L) | all year |
| Perfluorododecanesulfonic acid (PFDoS) | daily maximum | report only (ng/L) | all year |
| Perfluorododecanesulfonic acid (PFDoS) | daily maximum | report only (ng/L) | all year |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | daily maximum | report only (ng/L) | all year |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | daily maximum | report only (ng/L) | all year |
| N-methyl perfluorooctanesulfonamide (NMeFOSA) | daily maximum | report only (ng/L) | all year |
| N-methyl perfluorooctanesulfonamide (NMeFOSA) | daily maximum | report only (ng/L) | all year |
| N-ethyl perfluorooctanesulfonamide (NEtFOSA) | daily maximum | report only (ng/L) | all year |
| N-ethyl perfluorooctanesulfonamide (NEtFOSA) | daily maximum | report only (ng/L) | all year |
| 3-Perfluoropropyl propanoic acid (3:3 FTCA) | daily maximum | report only (ng/L) | all year |
| 3-Perfluoropropyl propanoic acid (3:3 FTCA) | daily maximum | report only (ng/L) | all year |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | daily maximum | report only (ng/L) | all year |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | daily maximum | report only (ng/L) | all year |
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS) | daily maximum | report only (ng/L) | all year |
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS) | daily maximum | report only (ng/L) | all year |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | daily maximum | report only (ng/L) | all year |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | daily maximum | report only (ng/L) | all year |
| 3-Perfluoroheptyl propanoic acid (7:3 FTCA) | daily maximum | report only (ng/L) | all year |
| 3-Perfluoroheptyl propanoic acid (7:3 FTCA) | daily maximum | report only (ng/L) | all year |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | daily maximum | report only (ng/L) | all year |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | daily maximum | report only (ng/L) | all year |
| 2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA) | daily maximum | report only (ng/L) | all year |
| 2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA) | daily maximum | report only (ng/L) | all year |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 58 Chemicals and Allied Products permits in Illinois.
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