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Steel Wire And Related Products, major discharger, Rockport, Indiana. NPDES permit IN0059650, in force until Jun 30, 2031. Last 12 months: over a limit 2 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| August 2026 | Chromium, total recoverable, daily maximum | 31.8413 lb/d | ≤ 13.35 lb/d | 139% |
| August 2026 | Solids, total suspended, daily maximum | 1216.2 lb/d | ≤ 1188 lb/d | 2% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 001 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 001 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 001 |
| Oil and grease, hexane extr method | monthly average | report only (lb/d) | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | 001 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | monthly average | report only (lb/d) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (lb/d) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (lb/d) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | all year | 001 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Chromium, total recoverable | daily maximum | report only (lb/d) | all year | 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 | monthly average | ≤ .098 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .228 mg/L | all year | 001 |
| Chlorine, total residual | monthly average | report only (lb/d) | all year | 001 |
| Chlorine, total residual | daily maximum | report only (lb/d) | all year | 001 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 101 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 101 |
| Solids, total suspended | monthly average | ≤ 519 lb/d | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 1188 lb/d | all year | 101 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 101 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 101 |
| Oil and grease, hexane extr method | monthly average | ≤ 173 lb/d | all year | 101 |
| Oil and grease, hexane extr method | daily maximum | ≤ 508 lb/d | all year | 101 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 101 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | all year | 101 |
| Nickel, total recoverable | monthly average | ≤ 3.95 lb/d | all year | 101 |
| Nickel, total recoverable | daily maximum | ≤ 11.81 lb/d | all year | 101 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 101 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 101 |
| Zinc, total recoverable | monthly average | ≤ 1.93 lb/d | all year | 101 |
| Zinc, total recoverable | daily maximum | ≤ 5.77 lb/d | all year | 101 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 101 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 101 |
| Lead, total recoverable | monthly average | ≤ 1.63 lb/d | all year | 101 |
| Lead, total recoverable | daily maximum | ≤ 4.88 lb/d | all year | 101 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 101 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 101 |
| Chromium, total recoverable | monthly average | ≤ 5.37 lb/d | all year | 101 |
| Chromium, total recoverable | daily maximum | ≤ 13.35 lb/d | all year | 101 |
| Tetrachloroethylene | daily maximum | report only (mg/L) | all year | 101 |
| Tetrachloroethylene | daily maximum | ≤ .2 lb/d | all year | 101 |
| Naphthalene | daily maximum | report only (mg/L) | all year | 101 |
| Naphthalene | daily maximum | ≤ .13 lb/d | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (mg/L) | all year | 201 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (mg/L) | all year | 201 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | ≤ .18 lb/d | all year | 201 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | ≤ .542 lb/d | all year | 201 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 201 |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 54 Primary Metal Industries permits in Indiana.
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