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Blast Furnaces And Steel Mills, major discharger, Canton, Ohio. NPDES permit OH0006912, in force until Apr 30, 2029. Last 12 months: over a limit 5 times (last August 2026), 8 required values missing, 5 of 97 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| April 2026 | pH, daily maximum | 10 | ≤ 9 SU |
| May 2026 | pH, daily maximum | 9.33 | ≤ 9 SU |
| June 2026 | pH, daily maximum | 9.55 | ≤ 9 SU |
| July 2026 | pH, daily maximum | 9.6 | ≤ 9 SU |
| August 2026 | pH, daily maximum | 9.4 | ≤ 9 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| 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 | ≥ 6.5 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 003 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Iron, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Selenium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Chromium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Copper, total recoverable | monthly average | ≤ 44 ug/L | all year | 003 |
| Copper, total recoverable | daily maximum | ≤ 72 ug/L | all year | 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 | ≤ .016 mg/L | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ .026 mg/L | all year | 003 |
| Mercury, total low level | monthly average | report only (ng/L) | Mar, Jun, Sep, Dec | 003 |
| Mercury, total low level | daily maximum | report only (ng/L) | Mar, Jun, Sep, Dec | 003 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 006 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 006 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 006 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 006 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 008 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 008 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 008 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 008 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 008 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 008 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 009 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 009 |
| pH | daily minimum | ≥ 6.5 SU | all year | 009 |
| pH | daily maximum | ≤ 9 SU | all year | 009 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 009 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 009 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 009 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 009 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 009 |
| Copper, total recoverable | monthly average | ≤ 44 ug/L | all year | 009 |
| Copper, total recoverable | daily maximum | ≤ 72 ug/L | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Chlorine, total residual | monthly average | ≤ .016 mg/L | all year | 009 |
| Chlorine, total residual | daily maximum | ≤ .026 mg/L | all year | 009 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 009 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 009 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 010 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 010 |
| pH | daily minimum | ≥ 6.5 SU | all year | 010 |
| pH | daily maximum | ≤ 9 SU | all year | 010 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 010 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 010 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 010 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Iron, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Selenium, total recoverable | monthly average | ≤ 5.8 ug/L | all year | 010 |
| Selenium, total recoverable | daily maximum | ≤ 109 ug/L | all year | 010 |
| Selenium, total recoverable | monthly average | ≤ .037 kg/d | all year | 010 |
| Selenium, total recoverable | daily maximum | ≤ .7 kg/d | all year | 010 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Lead, total recoverable | monthly average | ≤ 58 ug/L | all year | 010 |
| Lead, total recoverable | daily maximum | ≤ 1104 ug/L | all year | 010 |
| Lead, total recoverable | monthly average | ≤ .37 kg/d | all year | 010 |
| Lead, total recoverable | daily maximum | ≤ 7.1 kg/d | all year | 010 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Dichlorobromomethane | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Dichlorobromomethane | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Chloroform | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Chloroform | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 010 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 010 |
| Chlorine, total residual | monthly average | ≤ .016 mg/L | all year | 010 |
| Chlorine, total residual | daily maximum | ≤ .022 mg/L | all year | 010 |
| Mercury, total low level | monthly average | ≤ 40.6 ng/L | all year | 010 |
| Mercury, total low level | daily maximum | ≤ 1700 ng/L | all year | 010 |
| Mercury, total low level | monthly average | ≤ .00026 kg/d | all year | 010 |
| Mercury, total low level | daily maximum | ≤ .011 kg/d | all year | 010 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | ≤ 1 tox acute | Mar, Sep | 010 |
| Toxicity [chronic], Ceriodaphnia dubia | monthly average | ≤ 2.44 tox chronic | Mar, Sep | 010 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 010 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 011 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 011 |
| pH | daily minimum | ≥ 6.5 SU | all year | 011 |
| pH | daily maximum | ≤ 9 SU | all year | 011 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 011 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 011 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 011 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 011 |
| Iron, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 011 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 011 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 011 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 011 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 011 |
| Solids, total dissolved- 180 deg. C | monthly average | ≤ 1942 mg/L | all year | 011 |
| pH | daily minimum | report only (SU) | Mar, Jun, Sep, Dec | 020 |
| pH | daily maximum | report only (SU) | Mar, Jun, Sep, Dec | 020 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 020 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 020 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 020 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 022 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 022 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 022 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 022 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 022 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 022 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 022 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 022 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 024 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 024 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 024 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 024 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 024 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 024 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 024 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 024 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 025 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 025 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 025 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 025 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 027 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 027 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 027 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 027 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 028 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 028 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 028 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 028 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 029 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 029 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 029 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 029 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 030 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 030 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 030 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 031 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 031 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 031 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 032 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 032 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 032 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 033 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 033 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 033 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 033 |
| Solids, total suspended | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 034 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 034 |
| Zinc, total recoverable | daily maximum | ≤ 360 ug/L | Mar, Jun, Sep, Dec | 034 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 034 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 034 |
| Copper, total recoverable | daily maximum | ≤ 47 ug/L | Mar, Jun, Sep, Dec | 034 |
| pH | daily minimum | report only (SU) | all year | 601 |
| pH | daily maximum | report only (SU) | all year | 601 |
| Solids, total suspended | monthly average | ≤ 68.1 kg/d | all year | 601 |
| Solids, total suspended | daily maximum | ≤ 188 kg/d | all year | 601 |
| Oil and grease, hexane extr method | daily maximum | ≤ 43.1 kg/d | all year | 601 |
| Zinc, total recoverable | monthly average | ≤ .93 kg/d | all year | 601 |
| Zinc, total recoverable | daily maximum | ≤ 2.76 kg/d | all year | 601 |
| Lead, total recoverable | monthly average | ≤ .62 kg/d | all year | 601 |
| Lead, total recoverable | daily maximum | ≤ 1.84 kg/d | all year | 601 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 601 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 601 |
| Mercury, total low level | monthly average | report only (ng/L) | all year | 601 |
| Mercury, total low level | daily maximum | report only (ng/L) | all year | 601 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 56 Primary Metal Industries permits in Ohio.
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