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Cold Finishing Of Steel Shapes, major discharger, Portage, Indiana. NPDES permit IN0000337 expired Sep 30, 2026; its limits still apply. Last 12 months: no values over a limit, 8 of 94 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 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 |
| Chlorine, total residual | monthly average | ≤ .01 mg/L | all year | 002 |
| Chlorine, total residual | daily maximum | < .06 mg/L | all year | 002 |
| Chlorine, total residual | monthly average | ≤ .04 lb/d | all year | 002 |
| Chlorine, total residual | daily maximum | < .16 lb/d | all year | 002 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 002 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 003 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 003 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Chlorine, total residual | monthly average | ≤ .01 mg/L | all year | 003 |
| Chlorine, total residual | daily maximum | < .06 mg/L | all year | 003 |
| Chlorine, total residual | monthly average | ≤ 1.3 lb/d | all year | 003 |
| Chlorine, total residual | daily maximum | < 7.6 lb/d | all year | 003 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 003 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 004 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 004 |
| pH | daily minimum | ≥ 6 SU | all year | 004 |
| pH | daily maximum | ≤ 9 SU | all year | 004 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 004 |
| Cyanide, free [as free] | monthly average | ≤ .0075 mg/L | all year | 004 |
| Cyanide, free [as free] | daily maximum | ≤ .013 mg/L | all year | 004 |
| Cyanide, free [as free] | monthly average | ≤ 1.2 lb/d | all year | 004 |
| Cyanide, free [as free] | daily maximum | ≤ 2.1 lb/d | all year | 004 |
| Nickel, total recoverable | monthly average | ≤ .21 mg/L | all year | 004 |
| Nickel, total recoverable | daily maximum | ≤ .36 mg/L | all year | 004 |
| Nickel, total recoverable | monthly average | ≤ 31 lb/d | all year | 004 |
| Nickel, total recoverable | daily maximum | ≤ 54 lb/d | all year | 004 |
| Silver total recoverable | monthly average | ≤ .076 ug/L | all year | 004 |
| Silver total recoverable | daily maximum | ≤ .13 ug/L | all year | 004 |
| Silver total recoverable | monthly average | ≤ .012 lb/d | all year | 004 |
| Silver total recoverable | daily maximum | < .021 lb/d | all year | 004 |
| Cadmium, total recoverable | monthly average | ≤ .0077 mg/L | all year | 004 |
| Cadmium, total recoverable | daily maximum | ≤ .013 mg/L | all year | 004 |
| Cadmium, total recoverable | monthly average | ≤ 1.2 lb/d | all year | 004 |
| Cadmium, total recoverable | daily maximum | ≤ 2.1 lb/d | all year | 004 |
| Lead, total recoverable | monthly average | ≤ .038 mg/L | all year | 004 |
| Lead, total recoverable | daily maximum | ≤ .066 mg/L | all year | 004 |
| Lead, total recoverable | monthly average | ≤ 5.8 lb/d | all year | 004 |
| Lead, total recoverable | daily maximum | ≤ 9.9 lb/d | all year | 004 |
| Copper, total recoverable | monthly average | ≤ .03 mg/L | all year | 004 |
| Copper, total recoverable | daily maximum | ≤ .052 mg/L | all year | 004 |
| Copper, total recoverable | monthly average | ≤ 4.7 lb/d | all year | 004 |
| Copper, total recoverable | daily maximum | ≤ 8.2 lb/d | all year | 004 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (mg/L) | all year | 004 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (mg/L) | all year | 004 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (lb/d) | all year | 004 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (lb/d) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Chlorine, total residual | monthly average | ≤ .01 mg/L | all year | 004 |
| Chlorine, total residual | daily maximum | < .06 mg/L | all year | 004 |
| Chlorine, total residual | monthly average | ≤ 1.4 lb/d | all year | 004 |
| Chlorine, total residual | daily maximum | < 8.5 lb/d | all year | 004 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Jan, Apr, Jul, Oct | 004 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Mar, Jun, Sep, Dec | 004 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1 tox chronic | Jan, Apr, Jul, Oct | 004 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1 tox chronic | Mar, Jun, Sep, Dec | 004 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Jan, Apr, Jul, Oct | 004 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Mar, Jun, Sep, Dec | 004 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox chronic | Jan, Apr, Jul, Oct | 004 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox chronic | Mar, Jun, Sep, Dec | 004 |
| Formaldehyde | monthly average | report only (mg/L) | all year | 004 |
| Formaldehyde | daily maximum | report only (mg/L) | all year | 004 |
| Formaldehyde | monthly average | report only (lb/d) | all year | 004 |
| Formaldehyde | daily maximum | report only (lb/d) | all year | 004 |
| Mercury, total recoverable | annual average | ≤ 18 ng/L | Feb, Apr, Jun, Aug, Oct, Dec | 004 |
| Mercury, total recoverable | daily maximum | report only (ng/L) | Feb, Apr, Jun, Aug, Oct, Dec | 004 |
| Mercury, total recoverable | daily maximum | report only (ng/L) | Feb, Apr, Jun, Aug, Oct, Dec | 004 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 004 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 104 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 104 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 104 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 104 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 104 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 104 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | 104 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | all year | 104 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 104 |
| Cyanide, total [as CN] | monthly average | report only (lb/d) | all year | 104 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) | all year | 104 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | all year | 104 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 104 |
| Fluoride, total [as F] | monthly average | report only (lb/d) | all year | 104 |
| Fluoride, total [as F] | daily maximum | report only (lb/d) | all year | 104 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 104 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | all year | 104 |
| Nickel, total recoverable | monthly average | report only (lb/d) | all year | 104 |
| Nickel, total recoverable | daily maximum | report only (lb/d) | all year | 104 |
| Silver total recoverable | monthly average | report only (mg/L) | all year | 104 |
| Silver total recoverable | daily maximum | report only (mg/L) | all year | 104 |
| Silver total recoverable | monthly average | report only (lb/d) | all year | 104 |
| Silver total recoverable | daily maximum | report only (lb/d) | all year | 104 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 104 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 104 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | 104 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | all year | 104 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 104 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 104 |
| Cadmium, total recoverable | monthly average | report only (lb/d) | all year | 104 |
| Cadmium, total recoverable | daily maximum | report only (lb/d) | all year | 104 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 104 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 104 |
| Lead, total recoverable | monthly average | report only (lb/d) | all year | 104 |
| Lead, total recoverable | daily maximum | report only (lb/d) | all year | 104 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 104 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 104 |
| Chromium, total recoverable | daily average | report only (lb/d) | all year | 104 |
| Chromium, total recoverable | daily maximum | report only (lb/d) | all year | 104 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | 104 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 104 |
| Copper, total recoverable | monthly average | report only (lb/d) | all year | 104 |
| Copper, total recoverable | daily maximum | report only (lb/d) | all year | 104 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (mg/L) | all year | 104 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (mg/L) | all year | 104 |
| Chromium, hexavalent dissolved [as Cr] | daily average | report only (lb/d) | all year | 104 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (lb/d) | all year | 104 |
| Tetrachloroethylene | monthly average | report only (mg/L) | all year | 104 |
| Tetrachloroethylene | daily maximum | report only (mg/L) | all year | 104 |
| Tetrachloroethylene | daily maximum | report only (lb/d) | all year | 104 |
| Naphthalene | daily maximum | report only (mg/L) | all year | 104 |
| Naphthalene | daily maximum | report only (lb/d) | all year | 104 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 104 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 104 |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | report only (mg/L) | all year | 104 |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | report only (lb/d) | all year | 104 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 204 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 204 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 204 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 204 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 204 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 204 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | 204 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | all year | 204 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 204 |
| Cyanide, total [as CN] | monthly average | report only (lb/d) | all year | 204 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) | all year | 204 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | all year | 204 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 204 |
| Fluoride, total [as F] | monthly average | report only (lb/d) | all year | 204 |
| Fluoride, total [as F] | daily maximum | report only (lb/d) | all year | 204 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 204 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | all year | 204 |
| Nickel, total recoverable | monthly average | report only (lb/d) | all year | 204 |
| Nickel, total recoverable | daily maximum | report only (lb/d) | all year | 204 |
| Silver total recoverable | monthly average | report only (mg/L) | all year | 204 |
| Silver total recoverable | daily maximum | report only (mg/L) | all year | 204 |
| Silver total recoverable | monthly average | report only (lb/d) | all year | 204 |
| Silver total recoverable | daily maximum | report only (lb/d) | all year | 204 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 204 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 204 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | 204 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | all year | 204 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 204 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 204 |
| Cadmium, total recoverable | monthly average | report only (lb/d) | all year | 204 |
| Cadmium, total recoverable | daily maximum | report only (lb/d) | all year | 204 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 204 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 204 |
| Lead, total recoverable | monthly average | report only (lb/d) | all year | 204 |
| Lead, total recoverable | daily maximum | report only (lb/d) | all year | 204 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 204 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 204 |
| Chromium, total recoverable | monthly average | report only (lb/d) | all year | 204 |
| Chromium, total recoverable | daily maximum | report only (lb/d) | all year | 204 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | 204 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 204 |
| Copper, total recoverable | monthly average | report only (lb/d) | all year | 204 |
| Copper, total recoverable | daily maximum | report only (lb/d) | all year | 204 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (mg/L) | all year | 204 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (mg/L) | all year | 204 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (lb/d) | all year | 204 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (lb/d) | all year | 204 |
| Tetrachloroethylene | monthly average | report only (mg/L) | all year | 204 |
| Tetrachloroethylene | daily maximum | report only (mg/L) | all year | 204 |
| Tetrachloroethylene | daily maximum | report only (lb/d) | all year | 204 |
| Naphthalene | daily maximum | report only (mg/L) | all year | 204 |
| Naphthalene | daily maximum | report only (lb/d) | all year | 204 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 204 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 204 |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | report only (mg/L) | all year | 204 |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | report only (lb/d) | all year | 204 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 304 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 304 |
| Solids, total suspended | monthly average | ≤ 1147 lb/d | all year | 304 |
| Solids, total suspended | daily maximum | ≤ 2290 lb/d | all year | 304 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 304 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 304 |
| Oil and grease, hexane extr method | daily maximum | ≤ 765 lb/d | all year | 304 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | all year | 304 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 304 |
| Cyanide, total [as CN] | monthly average | ≤ 3.41 lb/d | all year | 304 |
| Cyanide, total [as CN] | daily maximum | ≤ 7.95 lb/d | all year | 304 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | all year | 304 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 304 |
| Fluoride, total [as F] | monthly average | ≤ 150 lb/d | all year | 304 |
| Fluoride, total [as F] | daily maximum | ≤ 400 lb/d | all year | 304 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 304 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | all year | 304 |
| Nickel, total recoverable | monthly average | report only (lb/d) | all year | 304 |
| Nickel, total recoverable | daily maximum | report only (lb/d) | all year | 304 |
| Silver total recoverable | monthly average | report only (mg/L) | all year | 304 |
| Silver total recoverable | daily maximum | report only (mg/L) | all year | 304 |
| Silver total recoverable | monthly average | report only (lb/d) | all year | 304 |
| Silver total recoverable | daily maximum | report only (lb/d) | all year | 304 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 304 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 304 |
| Zinc, total recoverable | monthly average | ≤ 10 lb/d | all year | 304 |
| Zinc, total recoverable | daily maximum | ≤ 30 lb/d | all year | 304 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 304 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 304 |
| Cadmium, total recoverable | monthly average | report only (lb/d) | all year | 304 |
| Cadmium, total recoverable | daily maximum | report only (lb/d) | all year | 304 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 304 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 304 |
| Lead, total recoverable | monthly average | report only (lb/d) | all year | 304 |
| Lead, total recoverable | daily maximum | report only (lb/d) | all year | 304 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 304 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 304 |
| Chromium, total recoverable | monthly average | ≤ 10 lb/d | all year | 304 |
| Chromium, total recoverable | daily maximum | ≤ 30 lb/d | all year | 304 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | 304 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 304 |
| Copper, total recoverable | monthly average | report only (lb/d) | all year | 304 |
| Copper, total recoverable | daily maximum | report only (lb/d) | all year | 304 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (mg/L) | all year | 304 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (mg/L) | all year | 304 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | ≤ .17 lb/d | all year | 304 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | ≤ .51 lb/d | all year | 304 |
| Tetrachloroethylene | monthly average | report only (mg/L) | all year | 304 |
| Tetrachloroethylene | daily maximum | report only (mg/L) | all year | 304 |
| Tetrachloroethylene | daily maximum | ≤ 1.29 lb/d | all year | 304 |
| Naphthalene | daily maximum | report only (mg/L) | all year | 304 |
| Naphthalene | daily maximum | ≤ .86 lb/d | all year | 304 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 304 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 304 |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | report only (mg/L) | all year | 304 |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | ≤ 38.43 lb/d | all year | 304 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 500 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 500 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Dec | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jun–Aug | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jan, Feb | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Mar | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Apr, Nov | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Sep, Oct | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | May | 500 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 60 deg F | Dec | 500 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 70 deg F | Jun–Aug | 500 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 53 deg F | Jan, Feb | 500 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 63 deg F | Mar | 500 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 65 deg F | Apr, Nov | 500 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 65 deg F | Sep, Oct | 500 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 65 deg F | May | 500 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Apr–Nov | 500 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | Apr–Nov | 500 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 2 deg F | all year | 500 |
| Surface area, square feet | daily maximum | report only (ft2) | all year | 600 |
| Depth to water level ft below landsurface | daily maximum | report only (ft) | all year | 600 |
| Flow rate | daily maximum | report only (MGD) | all year | 600 |
| Velocity of intake | daily maximum | report only (ft/sec) | all year | 600 |
| Cooling Water Intake Velocity | daily maximum | ≤ .5 ft/sec | all year | 600 |
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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Your permit document is the final word. As JSON: /api/v1/permits/IN0000337 · MCP: https://passage-data.com/mcp