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Industrial or other facility, Rock Falls, Illinois. NPDES permit IL0080286, in force until Jan 31, 2031. Last 12 months: over a limit 27 times (last August 2026), 178 required values missing, 3 of 8 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | BOD, 5-day, 20 deg. C, 30-day average | 1.1568 lb/d | ≤ .42 lb/d | 175% |
| June 2026 | BOD, 5-day, 20 deg. C, 30-day average | 26 mg/L | ≤ 10 mg/L | 160% |
| June 2026 | BOD, 5-day, 20 deg. C, daily maximum | 1.1568 lb/d | ≤ .83 lb/d | 39% |
| June 2026 | BOD, 5-day, 20 deg. C, daily maximum | 26 mg/L | ≤ 20 mg/L | 30% |
| June 2026 | Coliform, fecal general, daily maximum | 1553.1 #/100mL | ≤ 400 #/100mL | 288% |
| June 2026 | Nitrogen, ammonia total [as N], 30-day average | .11 lb/d | ≤ .063 lb/d | 75% |
| June 2026 | Nitrogen, ammonia total [as N], 30-day average | 2.5 mg/L | ≤ 1.5 mg/L | 67% |
| June 2026 | Solids, total suspended, 30-day average | 2.2692 lb/d | ≤ .5 lb/d | 354% |
| June 2026 | Solids, total suspended, 30-day average | 51 mg/L | ≤ 12 mg/L | 325% |
| June 2026 | Solids, total suspended, daily maximum | 2.2692 lb/d | ≤ 1 lb/d | 127% |
| June 2026 | Solids, total suspended, daily maximum | 51 mg/L | ≤ 24 mg/L | 113% |
| July 2026 | BOD, 5-day, 20 deg. C, 30-day average | 5.02 lb/d | ≤ .42 lb/d | 1095% |
| July 2026 | BOD, 5-day, 20 deg. C, 30-day average | 53 mg/L | ≤ 10 mg/L | 430% |
| July 2026 | BOD, 5-day, 20 deg. C, daily maximum | 5.02 lb/d | ≤ .83 lb/d | 505% |
| July 2026 | BOD, 5-day, 20 deg. C, daily maximum | 53 mg/L | ≤ 20 mg/L | 165% |
| July 2026 | Coliform, fecal general, daily maximum | 34480 #/100mL | ≤ 400 #/100mL | 8520% |
| July 2026 | Nitrogen, ammonia total [as N], 30-day average | .2 lb/d | ≤ .063 lb/d | 217% |
| July 2026 | Nitrogen, ammonia total [as N], 30-day average | 2.1 mg/L | ≤ 1.5 mg/L | 40% |
| July 2026 | Solids, total suspended, 30-day average | 4.64 lb/d | ≤ .5 lb/d | 828% |
| July 2026 | Solids, total suspended, 30-day average | 49 mg/L | ≤ 12 mg/L | 308% |
| July 2026 | Solids, total suspended, daily maximum | 4.64 lb/d | ≤ 1 lb/d | 364% |
| July 2026 | Solids, total suspended, daily maximum | 49 mg/L | ≤ 24 mg/L | 104% |
| August 2026 | BOD, 5-day, 20 deg. C, 30-day average | 100 mg/L | ≤ 10 mg/L | 900% |
| August 2026 | BOD, 5-day, 20 deg. C, 30-day average | 4.17 lb/d | ≤ .42 lb/d | 893% |
| August 2026 | BOD, 5-day, 20 deg. C, daily maximum | 100 mg/L | ≤ 20 mg/L | 400% |
| August 2026 | BOD, 5-day, 20 deg. C, daily maximum | 4.17 lb/d | ≤ .83 lb/d | 402% |
| August 2026 | Coliform, fecal general, daily maximum | 38730 #/100mL | ≤ 400 #/100mL | 9583% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 10 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 20 mg/L | all year |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ .42 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ .83 lb/d | all year |
| pH | monthly minimum | ≥ 6.5 SU | all year |
| pH | monthly maximum | ≤ 9 SU | all year |
| Solids, total suspended | 30-day average | ≤ 12 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 24 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ .5 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 1 lb/d | all year |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year |
| Oil & Grease | 30-day average | ≤ .63 lb/d | all year |
| Oil & Grease | daily maximum | ≤ 1.25 lb/d | all year |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.8 mg/L | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.5 mg/L | Jun–Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4.2 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.4 mg/L | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.4 mg/L | Jun–Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.2 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ .076 lb/d | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ .063 lb/d | Jun–Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ .18 lb/d | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .35 lb/d | Mar, Apr, May, Sep, Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .35 lb/d | Jun–Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .38 lb/d | Jan, Feb, Nov, Dec |
| Cyanide, total [as CN] | 30-day average | ≤ .1 mg/L | all year |
| Cyanide, total [as CN] | daily maximum | ≤ .2 mg/L | all year |
| Cyanide, total [as CN] | 30-day average | ≤ .004 lb/d | all year |
| Cyanide, total [as CN] | daily maximum | ≤ .008 lb/d | all year |
| Cadmium, total [as Cd] | 30-day average | ≤ .15 mg/L | all year |
| Cadmium, total [as Cd] | daily maximum | ≤ .3 mg/L | all year |
| Cadmium, total [as Cd] | 30-day average | ≤ .006 lb/d | all year |
| Cadmium, total [as Cd] | daily maximum | ≤ .012 lb/d | all year |
| Chromium, hexavalent [as Cr] | 30-day average | ≤ .1 mg/L | all year |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .2 mg/L | all year |
| Chromium, hexavalent [as Cr] | 30-day average | ≤ .004 lb/d | all year |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .008 lb/d | all year |
| Chromium, total [as Cr] | 30-day average | ≤ 1 mg/L | all year |
| Chromium, total [as Cr] | daily maximum | ≤ 2 mg/L | all year |
| Chromium, total [as Cr] | 30-day average | ≤ .043 lb/d | all year |
| Chromium, total [as Cr] | daily maximum | ≤ .007 lb/d | all year |
| Copper, total [as Cu] | 30-day average | ≤ .5 mg/L | all year |
| Copper, total [as Cu] | daily maximum | ≤ 1 mg/L | all year |
| Copper, total [as Cu] | 30-day average | ≤ .021 lb/d | all year |
| Copper, total [as Cu] | daily maximum | ≤ .042 lb/d | all year |
| Lead, total [as Pb] | 30-day average | ≤ .2 mg/L | all year |
| Lead, total [as Pb] | daily maximum | ≤ .4 mg/L | all year |
| Lead, total [as Pb] | 30-day average | ≤ .008 lb/d | all year |
| Lead, total [as Pb] | daily maximum | ≤ .017 lb/d | all year |
| Nickel, total [as Ni] | 30-day average | ≤ 1 mg/L | all year |
| Nickel, total [as Ni] | daily maximum | ≤ 2 mg/L | all year |
| Nickel, total [as Ni] | 30-day average | ≤ .042 lb/d | all year |
| Nickel, total [as Ni] | daily maximum | ≤ .084 lb/d | all year |
| Silver, total [as Ag] | 30-day average | ≤ .1 mg/L | all year |
| Silver, total [as Ag] | daily maximum | ≤ .2 mg/L | all year |
| Silver, total [as Ag] | 30-day average | ≤ .004 lb/d | all year |
| Silver, total [as Ag] | daily maximum | ≤ .008 lb/d | all year |
| Zinc, total [as Zn] | 30-day average | ≤ 1 mg/L | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 2 mg/L | all year |
| Zinc, total [as Zn] | 30-day average | ≤ .042 lb/d | all year |
| Zinc, total [as Zn] | daily maximum | ≤ .084 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 |
| Perfluorobutanoic acid (PFBA) | 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 |
| Perfluorohexanoic acid (PFHxA) | 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 |
| Perfluorodecanoic acid (PFDA) | 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 |
| Perfluorotridecanoic acid (PFTrDA) | 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-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-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 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 |
| Perfluoroheptanesulfonic acid (PFHpS) | 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 |
| 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-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 |
| 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 |
| 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 |
| 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 |
| N-methyl perfluorooctanesulfonamide (NMeFOSA) | daily maximum | report only (ng/L) | all year |
| N-ethyl perfluorooctanesulfonamide (NEtFOSA) | daily maximum | report only (ng/L) | all year |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year |
| Organics, total toxic [TTO] | daily maximum | ≤ 2.13 mg/L | all year |
| Organics, total toxic [TTO] | daily maximum | ≤ .05 lb/d | all year |
| PFAS Sum | 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 |
| 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 |
| 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 |
| 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.
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On EPA ECHO: Facility report · DMR history
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