Hopedale Mine Preparation Plant

NPDES permit OH0011827 · Minor NON-POTW · effective, expires 2030-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

2values over a limit
325required values missing, on 27 form(s)
0of 34 forms filed late

Last period with anything received: 2025-10-31. Most often over: Solids, total dissolved- 180 deg. C (2).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (80)

OutfallParameterStatisticLimitMonths
009pHDAILY MN >= 6.5 SU all year
009pHDAILY MX <= 9 SU all year
009Solids, total suspendedMO AVG <= 35 mg/L all year
009Solids, total suspendedDAILY MX <= 70 mg/L all year
009Hardness, total [as CaCO3]MO AVG report only Mar, Jun, Sep, Dec
009Hardness, total [as CaCO3]DAILY MX report only Mar, Jun, Sep, Dec
009Chloride [as Cl]MO AVG report only Mar, Jun, Sep, Dec
009Chloride [as Cl]DAILY MX report only Mar, Jun, Sep, Dec
009Sulfate, total [as SO4]MO AVG report only Mar, Jun, Sep, Dec
009Sulfate, total [as SO4]DAILY MX report only Mar, Jun, Sep, Dec
009Selenium, total recoverableMO AVG report only Mar, Jun, Sep, Dec
009Selenium, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
009Iron, total [as Fe]MO AVG <= 3000 ug/L all year
009Iron, total [as Fe]DAILY MX <= 6000 ug/L all year
009Manganese, total [as Mn]MO AVG <= 2000 ug/L all year
009Manganese, total [as Mn]DAILY MX <= 4000 ug/L all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Mercury, total low levelMO AVG report only Dec
009Mercury, total low levelDAILY MX report only Dec
009Solids, total dissolved- 180 deg. CMO AVG report only all year
009Solids, total dissolved- 180 deg. CDAILY MX report only all year
010Flow rateMO AVG report only all year
010Flow rateDAILY MX report only all year
010Oxygen, dissolved [DO]DAILY MN report only Mar, Jun, Sep, Dec
010pHDAILY MN report only Mar, Jun, Sep, Dec
010pHDAILY MX report only Mar, Jun, Sep, Dec
010Solids, total suspendedMO AVG <= 12 mg/L Mar, Jun, Sep, Dec
010Solids, total suspendedDAILY MX <= 18 mg/L Mar, Jun, Sep, Dec
010Solids, total suspendedMO AVG <= .068 kg/d Mar, Jun, Sep, Dec
010Solids, total suspendedDAILY MX <= .1 kg/d Mar, Jun, Sep, Dec
010Nitrogen, ammonia total [as N]MO AVG report only Mar, Jun, Sep, Dec
010Nitrogen, ammonia total [as N]DAILY MX report only Mar, Jun, Sep, Dec
010Turbidity [severity]MO AVG report only all year
010Turbidity [severity]DAILY MX report only all year
010E. coli, MTEC-MFMO GEOMN <= 161 MPN/100mL Jun, Sep
010E. coli, MTEC-MFWK GEOMN <= 362 MPN/100mL Jun, Sep
010Chlorine, total residualDAILY MX report only Jun, Sep
010BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L Mar, Jun, Sep, Dec
010BOD, carbonaceous [5 day, 20 C]DAILY MX <= 15 mg/L Mar, Jun, Sep, Dec
010BOD, carbonaceous [5 day, 20 C]MO AVG <= .057 kg/d Mar, Jun, Sep, Dec
010BOD, carbonaceous [5 day, 20 C]DAILY MX <= .086 kg/d Mar, Jun, Sep, Dec
012Flow rateMO AVG report only all year
012Flow rateDAILY MX report only all year
012Oxygen, dissolved [DO]DAILY MN report only Mar, Jun, Sep, Dec
012pHDAILY MN report only Mar, Jun, Sep, Dec
012pHDAILY MX report only Mar, Jun, Sep, Dec
012Solids, total suspendedMO AVG <= 12 mg/L Mar, Jun, Sep, Dec
012Solids, total suspendedDAILY MX <= 18 mg/L Mar, Jun, Sep, Dec
012Solids, total suspendedMO AVG <= .29 kg/d Mar, Jun, Sep, Dec
012Solids, total suspendedDAILY MX <= .42 kg/d Mar, Jun, Sep, Dec
012Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L Jun, Sep
012Nitrogen, ammonia total [as N]MO AVG <= 3 mg/L Mar, Dec
012Nitrogen, ammonia total [as N]DAILY MX <= 1.5 mg/L Jun, Sep
012Nitrogen, ammonia total [as N]DAILY MX <= 4.5 mg/L Mar, Dec
012Nitrogen, ammonia total [as N]MO AVG <= .024 kg/d Jun, Sep
012Nitrogen, ammonia total [as N]MO AVG <= .07 kg/d Mar, Dec
012Nitrogen, ammonia total [as N]DAILY MX <= .035 kg/d Jun, Sep
012Nitrogen, ammonia total [as N]DAILY MX <= .105 kg/d Mar, Dec
012Turbidity [severity]MO AVG report only all year
012Turbidity [severity]DAILY MX report only all year
012E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL Jun, Sep
012E. coli, MTEC-MFWK GEOMN <= 284 MPN/100mL Jun, Sep
012Chlorine, total residualDAILY MX <= .019 mg/L Jun, Sep
012BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L Mar, Jun, Sep, Dec
012BOD, carbonaceous [5 day, 20 C]DAILY MX <= 15 mg/L Mar, Jun, Sep, Dec
012BOD, carbonaceous [5 day, 20 C]MO AVG <= .23 kg/d Mar, Jun, Sep, Dec
012BOD, carbonaceous [5 day, 20 C]DAILY MX <= .35 kg/d Mar, Jun, Sep, Dec
588Sludge waste from secondary clarifiersMO AVG report only Dec
588Sludge waste from secondary clarifiersDAILY MX report only Dec
901Specific conductanceMO AVG report only Mar, Jun, Sep, Dec
901Specific conductanceDAILY MX report only Mar, Jun, Sep, Dec
901Hardness, total [as CaCO3]MO AVG report only Mar, Jun, Sep, Dec
901Hardness, total [as CaCO3]DAILY MX report only Mar, Jun, Sep, Dec
901Chloride [as Cl]MO AVG report only Mar, Jun, Sep, Dec
901Chloride [as Cl]DAILY MX report only Mar, Jun, Sep, Dec
901Sulfate, total [as SO4]MO AVG report only Mar, Jun, Sep, Dec
901Sulfate, total [as SO4]DAILY MX report only Mar, Jun, Sep, Dec
901Solids, total dissolved- 180 deg. CMO AVG report only Mar, Jun, Sep, Dec
901Solids, total dissolved- 180 deg. CDAILY MX report only Mar, Jun, Sep, Dec

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states