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Secondary Nonferrous Metals, major discharger, Lafayette, Indiana. NPDES permit IN0001210, in force until Jul 31, 2029. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| August 2026 | Polychlorinated biphenyls [PCBs], daily maximum | .5 ug/L | < .3 ug/L | 67% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| Precipitation, total defined period/in | monthly total | report only (in) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 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 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) (alert, not enforceable) | Jan | 001 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | Feb–Dec | 001 |
| Cyanide, total [as CN] | daily maximum | < .07 mg/L (alert, not enforceable) | Jan | 001 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | Feb–Dec | 001 |
| Cyanide, total [as CN] | monthly average | report only (lb/d) (alert, not enforceable) | Jan | 001 |
| Cyanide, total [as CN] | monthly average | report only (lb/d) | Feb–Dec | 001 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) (alert, not enforceable) | Jan | 001 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) | Feb–Dec | 001 |
| Chloride [as Cl] | monthly average | ≤ 370 mg/L | all year | 001 |
| Chloride [as Cl] | daily maximum | ≤ 740 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 |
| Zinc, total recoverable | monthly average | ≤ .2 mg/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ .44 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 |
| Aluminum, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Aluminum, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Aluminum, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Aluminum, total recoverable | daily maximum | report only (lb/d) | all year | 001 |
| Vanadium, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Vanadium, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Vanadium, total recoverable | monthly average | report only (lb/d) | all year | 001 |
| Vanadium, total recoverable | daily maximum | report only (lb/d) | all year | 001 |
| Lithium, total [as Li] | monthly average | report only (mg/L) | all year | 001 |
| Lithium, total [as Li] | daily maximum | report only (mg/L) | all year | 001 |
| Lithium, total [as Li] | monthly average | report only (lb/d) | all year | 001 |
| Lithium, total [as Li] | daily maximum | report only (lb/d) | all year | 001 |
| Polychlorinated biphenyls [PCBs] | monthly average | < .3 ug/L | all year | 001 |
| Polychlorinated biphenyls [PCBs] | daily maximum | < .3 ug/L | all year | 001 |
| Polychlorinated biphenyls [PCBs] | monthly average | report only (lb/d) | all year | 001 |
| Polychlorinated biphenyls [PCBs] | 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 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | ≤ 1 tox acute (alert, not enforceable) | Jan, Jul | 001 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | ≤ 1 tox acute (alert, not enforceable) | Feb, Aug | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | ≤ 1 tox chronic (alert, not enforceable) | Jan, Jul | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | ≤ 1 tox chronic (alert, not enforceable) | Feb, Aug | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1 tox acute (alert, not enforceable) | Feb, Aug | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1 tox acute (alert, not enforceable) | Jan, Jul | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1 tox chronic (alert, not enforceable) | Jan, Jul | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1 tox chronic (alert, not enforceable) | Feb, Aug | 001 |
| Mercury, total recoverable | monthly average | report only (ng/L) | Jun, Dec | 001 |
| Mercury, total recoverable | monthly average | report only (ng/L) | Jun, Dec | 001 |
| Mercury, total recoverable | daily maximum | report only (ng/L) | Jun, Dec | 001 |
| Mercury, total recoverable | daily maximum | report only (ng/L) | Jun, Dec | 001 |
| Mercury, total recoverable | monthly average | report only (lb/d) | Jun, Dec | 001 |
| Mercury, total recoverable | monthly average | report only (lb/d) | Jun, Dec | 001 |
| Mercury, total recoverable | daily maximum | report only (lb/d) | Jun, Dec | 001 |
| Mercury, total recoverable | daily maximum | report only (lb/d) | Jun, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | 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 | 102 |
| pH | daily maximum | ≤ 9 SU | all year | 102 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 102 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 102 |
| Solids, total suspended | monthly average | ≤ 33.98 lb/d | all year | 102 |
| Solids, total suspended | daily maximum | ≤ 67.95 lb/d | all year | 102 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Oil and grease, hexane extr method | monthly average | ≤ 21.8 lb/d | Mar, Jun, Sep, Dec | 102 |
| Oil and grease, hexane extr method | daily maximum | ≤ 34.06 lb/d | Mar, Jun, Sep, Dec | 102 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) (alert, not enforceable) | Mar | 102 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | Jun, Sep, Dec | 102 |
| Cyanide, total [as CN] | daily maximum | < .07 mg/L (alert, not enforceable) | Mar | 102 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | Jun, Sep, Dec | 102 |
| Cyanide, total [as CN] | monthly average | ≤ .12 lb/d (alert, not enforceable) | Mar | 102 |
| Cyanide, total [as CN] | monthly average | ≤ .12 lb/d | Jun, Sep, Dec | 102 |
| Cyanide, total [as CN] | daily maximum | ≤ .29 lb/d (alert, not enforceable) | Mar | 102 |
| Cyanide, total [as CN] | daily maximum | ≤ .29 lb/d | Jun, Sep, Dec | 102 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 102 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 102 |
| Chloride [as Cl] | monthly average | report only (lb/d) | all year | 102 |
| Chloride [as Cl] | daily maximum | report only (lb/d) | all year | 102 |
| Zinc, total recoverable | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Zinc, total recoverable | monthly average | ≤ 1.03 lb/d | Mar, Jun, Sep, Dec | 102 |
| Zinc, total recoverable | daily maximum | ≤ 2.45 lb/d | Mar, Jun, Sep, Dec | 102 |
| Aluminum, total recoverable | monthly average | ≤ .12 mg/L | all year | 102 |
| Aluminum, total recoverable | daily maximum | ≤ .29 mg/L | all year | 102 |
| Aluminum, total recoverable | monthly average | report only (lb/d) | all year | 102 |
| Aluminum, total recoverable | daily maximum | report only (lb/d) | all year | 102 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 102 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 102 |
| Chromium, total recoverable | monthly average | ≤ .19 lb/d | all year | 102 |
| Chromium, total recoverable | daily maximum | ≤ .45 lb/d | all year | 102 |
| Vanadium, total recoverable | monthly average | report only (mg/L) | all year | 102 |
| Vanadium, total recoverable | daily maximum | report only (mg/L) | all year | 102 |
| Vanadium, total recoverable | monthly average | report only (lb/d) | all year | 102 |
| Vanadium, total recoverable | daily maximum | report only (lb/d) | all year | 102 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 102 |
| Chlorine, total residual | monthly average | < .06 mg/L | all year | 102 |
| Chlorine, total residual | daily maximum | < .06 mg/L | all year | 102 |
| Chlorine, total residual | monthly average | report only (lb/d) | all year | 102 |
| Chlorine, total residual | daily maximum | report only (lb/d) | all year | 102 |
| E. coli, colony forming units [CFU] | monthly geometric mean | ≤ 125 CFU/100mL | Apr–Oct | 102 |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 235 CFU/100mL | Apr–Oct | 102 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20 mg/L | all year | 102 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 30 mg/L | all year | 102 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year | 102 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (lb/d) | all year | 102 |
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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