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Steel Wire And Related Products, major discharger, Alton, Illinois. NPDES permit IL0000612 expired Apr 30, 2024; its limits still apply. Last 12 months: over a limit 9 times (last September 2026), 1 required value missing, 2 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Solids, total suspended, daily maximum | 271.12 lb/d | ≤ 182 lb/d | 49% |
| March 2026 | pH, monthly maximum | 9.5 SU | ≤ 9 SU | — |
| April 2026 | Chlorine, total residual, daily maximum | .2 mg/L | ≤ .05 mg/L | 300% |
| May 2026 | Chlorine, total residual, daily maximum | .8 mg/L | ≤ .05 mg/L | 1500% |
| May 2026 | Oil & Grease, daily maximum | < 306.95 lb/d | ≤ 132 lb/d | 133% |
| June 2026 | Chlorine, total residual, daily maximum | < .1 mg/L | ≤ .05 mg/L | 100% |
| August 2026 | Chlorine, total residual, daily maximum | .11 mg/L | ≤ .05 mg/L | 120% |
| September 2026 | Chlorine, total residual, daily maximum | .11 mg/L | ≤ .05 mg/L | 120% |
| September 2026 | pH, monthly maximum | 9.1 SU | ≤ 9 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | all year | 001 |
| pH | monthly minimum | ≥ 6 SU | all year | 001 |
| pH | monthly minimum | ≥ 6 SU | all year | 001 |
| pH | monthly maximum | ≤ 10 SU | all year | 001 |
| pH | monthly maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 91 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 182 lb/d | all year | 001 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | semi-annual average | report only (mg/L) | all year | 001 |
| Oil & Grease | semi-annual average | report only (mg/L) | all year | 001 |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year | 001 |
| Oil & Grease | semi-annual maximum | report only (mg/L) | all year | 001 |
| Oil & Grease | semi-annual maximum | report only (mg/L) | all year | 001 |
| Oil & Grease | 30-day average | ≤ 66 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 132 lb/d | all year | 001 |
| Arsenic, total [as As] | semi-annual average | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | semi-annual average | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | semi-annual average | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | semi-annual average | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | semi-annual average | report only (mg/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | semi-annual average | report only (mg/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Chromium, total [as Cr] | semi-annual average | report only (mg/L) | all year | 001 |
| Chromium, total [as Cr] | semi-annual average | report only (mg/L) | all year | 001 |
| Chromium, total [as Cr] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Chromium, total [as Cr] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | semi-annual average | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | semi-annual average | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | 30-day average | ≤ 2 mg/L | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 001 |
| Iron, total [as Fe] | 30-day average | ≤ 12 lb/d | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 24 lb/d | all year | 001 |
| Iron, dissolved [as Fe] | semi-annual average | report only (mg/L) | all year | 001 |
| Iron, dissolved [as Fe] | semi-annual average | report only (mg/L) | all year | 001 |
| Iron, dissolved [as Fe] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Iron, dissolved [as Fe] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | 30-day average | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ .18 mg/L | all year | 001 |
| Lead, total [as Pb] | 30-day average | ≤ .55 lb/d | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ .86 lb/d | all year | 001 |
| Manganese, total [as Mn] | semi-annual average | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | semi-annual average | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | semi-annual average | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | semi-annual average | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | semi-annual maximum | report only (mg/L) | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ 1 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 2 mg/L | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ 2.4 lb/d | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 5.1 lb/d | all year | 001 |
| Polychlorinated biphenyls [PCBs] | monthly average | report only (mg/L) | Oct | 001 |
| Polychlorinated biphenyls [PCBs] | daily maximum | report only (mg/L) | Oct | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year | 001 |
| Mercury, total [as Hg] | semi-annual average | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | semi-annual average | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | semi-annual maximum | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | semi-annual maximum | report only (ug/L) | all year | 001 |
| pH | quarterly minimum | report only (SU) | all year | 200 |
| pH | quarterly minimum | report only (SU) | all year | 200 |
| pH | quarterly maximum | report only (SU) | all year | 200 |
| pH | quarterly maximum | report only (SU) | all year | 200 |
| Copper, total [as Cu] | daily maximum | ≤ .0505 mg/L | all year | 200 |
| Copper, total [as Cu] | daily maximum | ≤ .0505 mg/L | all year | 200 |
| Lead, total [as Pb] | quarterly maximum | ≤ .3942 mg/L | all year | 200 |
| Lead, total [as Pb] | quarterly maximum | ≤ .3942 mg/L | all year | 200 |
| Zinc, total [as Zn] | quarterly maximum | ≤ .3134 mg/L | all year | 200 |
| Zinc, total [as Zn] | quarterly maximum | ≤ .3134 mg/L | all year | 200 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 200 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 200 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 22 Primary Metal Industries permits in Illinois.
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