Homestake Mining Company - Open Cut

NPDES permit SD0025933 · Minor NON-POTW · administratively continued, expires 2016-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2016-03-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 71 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among SD permits in EPA's filings — check your permit).

Limits in force (312)

OutfallParameterStatisticLimitMonths
003Temperature, water deg. centigrade30DA AVG report only all year
003Temperature, water deg. centigradeDAILY MX report only all year
003Flow rate30DA AVG report only all year
003Flow rateDAILY MX report only all year
003Conductivity30DA AVG report only all year
003ConductivityDAILY MX report only all year
003pHDAILY MN report only all year
003pHDAILY MX report only all year
003Solids, total suspended30DA AVG report only all year
003Solids, total suspendedDAILY MX report only all year
003Oil and grease, hexane extr methodDAILY MX report only all year
003Nitrogen, nitrate total [as N]30DA AVG report only all year
003Nitrogen, nitrate total [as N]DAILY MX report only all year
003Cyanide, weak acid, dissociable30DA AVG report only all year
003Cyanide, weak acid, dissociableDAILY MX report only all year
003Hardness, total [as CaCO3]DAILY MX report only all year
003Arsenic, total recoverable30DA AVG report only all year
003Arsenic, total recoverableDAILY MX report only all year
003Iron, total recoverable30DA AVG report only all year
003Iron, total recoverableDAILY MX report only all year
003Selenium, total recoverable30DA AVG report only all year
003Selenium, total recoverableDAILY MX report only all year
003Nickel, total recoverable30DA AVG report only all year
003Nickel, total recoverableDAILY MX report only all year
003Silver total recoverable30DA AVG report only all year
003Silver total recoverableDAILY MX report only all year
003Zinc, total recoverable30DA AVG report only all year
003Zinc, total recoverableDAILY MX report only all year
003Cadmium, total recoverable30DA AVG report only all year
003Cadmium, total recoverableDAILY MX report only all year
003Lead, total recoverable30DA AVG report only all year
003Lead, total recoverableDAILY MX report only all year
003Chromium, total recoverable30DA AVG report only all year
003Chromium, total recoverableDAILY MX report only all year
003Copper, total recoverable30DA AVG report only all year
003Copper, total recoverableDAILY MX report only all year
003Floating solids, waste or visible foam-visualDAILY MX report only all year
003Solids, total dissolved30DA AVG report only all year
003Solids, total dissolvedDAILY MX report only all year
003Mercury, total [as Hg]30DA AVG report only all year
003Mercury, total [as Hg]DAILY MX report only all year
003Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
005Temperature, water deg. centigrade30DA AVG report only all year
005Temperature, water deg. centigradeDAILY MX report only all year
005Flow rate30DA AVG report only all year
005Flow rateDAILY MX report only all year
005Conductivity30DA AVG report only all year
005ConductivityDAILY MX report only all year
005pHDAILY MN report only all year
005pHDAILY MX report only all year
005Solids, total suspended30DA AVG report only all year
005Solids, total suspendedDAILY MX report only all year
005Oil and grease, hexane extr methodDAILY MX report only all year
005Nitrogen, nitrate total [as N]30DA AVG report only all year
005Nitrogen, nitrate total [as N]DAILY MX report only all year
005Cyanide, weak acid, dissociable30DA AVG report only all year
005Cyanide, weak acid, dissociableDAILY MX report only all year
005Hardness, total [as CaCO3]DAILY MX report only all year
005Arsenic, total recoverable30DA AVG report only all year
005Arsenic, total recoverableDAILY MX report only all year
005Iron, total recoverable30DA AVG report only all year
005Iron, total recoverableDAILY MX report only all year
005Selenium, total recoverable30DA AVG report only all year
005Selenium, total recoverableDAILY MX report only all year
005Nickel, total recoverable30DA AVG report only all year
005Nickel, total recoverableDAILY MX report only all year
005Silver total recoverable30DA AVG report only all year
005Silver total recoverableDAILY MX report only all year
005Zinc, total recoverable30DA AVG report only all year
005Zinc, total recoverableDAILY MX report only all year
005Cadmium, total recoverable30DA AVG report only all year
005Cadmium, total recoverableDAILY MX report only all year
005Lead, total recoverable30DA AVG report only all year
005Lead, total recoverableDAILY MX report only all year
005Chromium, total recoverable30DA AVG report only all year
005Chromium, total recoverableDAILY MX report only all year
005Copper, total recoverable30DA AVG report only all year
005Copper, total recoverableDAILY MX report only all year
005Floating solids, waste or visible foam-visualDAILY MX report only all year
005Solids, total dissolved30DA AVG report only all year
005Solids, total dissolvedDAILY MX report only all year
005Mercury, total [as Hg]30DA AVG report only all year
005Mercury, total [as Hg]DAILY MX report only all year
005Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
008Temperature, water deg. centigrade30DA AVG report only all year
008Temperature, water deg. centigradeDAILY MX report only all year
008Flow rate30DA AVG report only all year
008Flow rateDAILY MX report only all year
008Conductivity30DA AVG <= 2500 umho/cm all year
008ConductivityDAILY MX <= 4375 umho/cm all year
008BOD, 5-day, 20 deg. C30DA AVG <= 10 mg/L all year
008BOD, 5-day, 20 deg. CDAILY MX <= 17.5 mg/L all year
008pHDAILY MN >= 6.5 SU all year
008pHDAILY MX <= 9 SU all year
008Solids, total suspended30DA AVG <= 10 mg/L all year
008Solids, total suspendedDAILY MX <= 17.5 mg/L all year
008Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
008Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L all year
008Nitrogen, ammonia total [as N]DAILY MX <= 1.75 mg/L all year
008Nitrogen, nitrate total [as N]30DA AVG report only all year
008Nitrogen, nitrate total [as N]DAILY MX report only all year
008Cyanide, weak acid, dissociable30DA AVG report only all year
008Cyanide, weak acid, dissociableDAILY MX report only all year
008Hardness, total [as CaCO3]DAILY MX report only all year
008Arsenic, total recoverable30DA AVG report only all year
008Arsenic, total recoverableDAILY MX report only all year
008Iron, total recoverable30DA AVG report only all year
008Iron, total recoverableDAILY MX report only all year
008Selenium, total recoverable30DA AVG <= 4.6 ug/L all year
008Selenium, total recoverableDAILY MX <= 12.8 ug/L all year
008Nickel, total recoverable30DA AVG report only all year
008Nickel, total recoverableDAILY MX report only all year
008Silver total recoverable30DA AVG report only all year
008Silver total recoverableDAILY MX report only all year
008Zinc, total recoverable30DA AVG report only all year
008Zinc, total recoverableDAILY MX report only all year
008Cadmium, total recoverable30DA AVG report only all year
008Cadmium, total recoverableDAILY MX report only all year
008Lead, total recoverable30DA AVG report only all year
008Lead, total recoverableDAILY MX report only all year
008Chromium, total recoverable30DA AVG report only all year
008Chromium, total recoverableDAILY MX report only all year
008Copper, total recoverable30DA AVG report only all year
008Copper, total recoverableDAILY MX report only all year
008Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
008Solids, total dissolved30DA AVG <= 2500 mg/L all year
008Solids, total dissolvedDAILY MX <= 4375 mg/L all year
008Mercury, total [as Hg]30DA AVG report only all year
008Mercury, total [as Hg]DAILY MX report only all year
008Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
013Temperature, water deg. centigrade30DA AVG report only all year
013Temperature, water deg. centigradeDAILY MX report only all year
013Flow rateDAILY MX report only all year
013Flow rate30DA AVG report only all year
013Conductivity30DA AVG <= 2828 umho/cm all year
013ConductivityDAILY MX <= 4375 umho/cm all year
013Oxygen, dissolved [DO]DAILY MN report only all year
013BOD, 5-day, 20 deg. C30DA AVG <= 10 mg/L all year
013BOD, 5-day, 20 deg. CDAILY MX <= 17.5 mg/L all year
013pHDAILY MN >= 6.5 SU all year
013pHDAILY MX <= 9 SU all year
013Solids, total suspended30DA AVG <= 10 mg/L all year
013Solids, total suspendedDAILY MX <= 17.5 mg/L all year
013Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
013Nitrogen, ammonia total [as N]30DA AVG <= 7.81 lb/d Mar, Apr
013Nitrogen, ammonia total [as N]30DA AVG <= 1.68 lb/d Jan, Feb, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
013Nitrogen, ammonia total [as N]DAILY MX <= 13.7 lb/d Mar, Apr
013Nitrogen, ammonia total [as N]DAILY MX <= 2.94 lb/d Jan, Feb, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
013Nitrogen, nitrate total [as N]30DA AVG report only all year
013Nitrogen, nitrate total [as N]DAILY MX report only all year
013Cyanide, weak acid, dissociable30DA AVG report only all year
013Cyanide, weak acid, dissociableDAILY MX report only all year
013Hardness, total [as CaCO3]DAILY MX report only all year
013Arsenic, total recoverable30DA AVG report only all year
013Arsenic, total recoverableDAILY MX report only all year
013Iron, total recoverable30DA AVG report only all year
013Iron, total recoverableDAILY MX report only all year
013Selenium, total recoverable30DA AVG <= 4.6 ug/L all year
013Selenium, total recoverableDAILY MX <= 12.8 ug/L all year
013Nickel, total recoverable30DA AVG report only all year
013Nickel, total recoverableDAILY MX report only all year
013Silver total recoverable30DA AVG report only all year
013Silver total recoverableDAILY MX report only all year
013Zinc, total recoverable30DA AVG report only all year
013Zinc, total recoverableDAILY MX report only all year
013Cadmium, total recoverable30DA AVG report only all year
013Cadmium, total recoverableDAILY MX report only all year
013Lead, total recoverable30DA AVG report only all year
013Lead, total recoverableDAILY MX report only all year
013Chromium, total recoverable30DA AVG report only all year
013Chromium, total recoverableDAILY MX report only all year
013Copper, total recoverable30DA AVG report only all year
013Copper, total recoverableDAILY MX report only all year
013Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
013Solids, total dissolved30DA AVG <= 2908 mg/L all year
013Solids, total dissolvedDAILY MX <= 4375 mg/L all year
013Mercury, total [as Hg]30DA AVG report only all year
013Mercury, total [as Hg]DAILY MX report only all year
013Flow, process wastewaterMO TOTAL <= 0 gal/mo all year
013Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
013Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 all year
013Pass/Fail Static Renewal 96Hr Acute Pimephales PromelasDAILY MX <= 0 pass=0;fail=1 all year
014Temperature, water deg. centigrade30DA AVG report only all year
014Temperature, water deg. centigradeDAILY MX report only all year
014Flow rateDAILY MX report only all year
014Flow rate30DA AVG report only all year
014Conductivity30DA AVG <= 2500 umho/cm all year
014ConductivityDAILY MX <= 4375 umho/cm all year
014Oxygen, dissolved [DO]DAILY MN report only all year
014BOD, 5-day, 20 deg. C30DA AVG <= 10 mg/L all year
014BOD, 5-day, 20 deg. CDAILY MX <= 17.5 mg/L all year
014pHDAILY MN >= 6.5 SU all year
014pHDAILY MX <= 9 SU all year
014Solids, total suspended30DA AVG <= 10 mg/L all year
014Solids, total suspendedDAILY MX <= 17.5 mg/L all year
014Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
014Nitrogen, ammonia total [as N]30DA AVG <= 1.68 lb/d Jan, Feb, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
014Nitrogen, ammonia total [as N]30DA AVG <= 7.81 lb/d Mar, Apr
014Nitrogen, ammonia total [as N]DAILY MX <= 2.94 lb/d Jan, Feb, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
014Nitrogen, ammonia total [as N]DAILY MX <= 13.7 lb/d Mar, Apr
014Nitrogen, nitrate total [as N]30DA AVG report only all year
014Nitrogen, nitrate total [as N]DAILY MX report only all year
014Cyanide, weak acid, dissociable30DA AVG report only all year
014Cyanide, weak acid, dissociableDAILY MX report only all year
014Hardness, total [as CaCO3]DAILY MX report only all year
014Arsenic, total recoverable30DA AVG report only Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
014Arsenic, total recoverableDAILY MX report only Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
014Iron, total recoverable30DA AVG report only all year
014Iron, total recoverableDAILY MX report only all year
014Selenium, total recoverable30DA AVG <= 4.6 ug/L all year
014Selenium, total recoverableDAILY MX <= 12.8 ug/L all year
014Nickel, total recoverable30DA AVG report only all year
014Nickel, total recoverableDAILY MX report only all year
014Silver total recoverable30DA AVG report only all year
014Silver total recoverableDAILY MX report only all year
014Zinc, total recoverable30DA AVG report only all year
014Zinc, total recoverableDAILY MX report only all year
014Cadmium, total recoverable30DA AVG report only all year
014Cadmium, total recoverableDAILY MX report only all year
014Lead, total recoverable30DA AVG report only all year
014Lead, total recoverableDAILY MX report only all year
014Chromium, total recoverable30DA AVG report only all year
014Chromium, total recoverableDAILY MX report only all year
014Copper, total recoverable30DA AVG report only all year
014Copper, total recoverableDAILY MX report only all year
014Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
014Solids, total dissolved30DA AVG <= 2500 mg/L all year
014Solids, total dissolvedDAILY MX <= 4375 mg/L all year
014Mercury, total [as Hg]30DA AVG report only all year
014Mercury, total [as Hg]DAILY MX report only all year
014Flow, process wastewaterMO TOTAL <= 0 gal/mo all year
014Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
014Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 all year
014Pass/Fail Static Renewal 96Hr Acute Pimephales PromelasDAILY MX <= 0 pass=0;fail=1 all year
SW1Temperature, water deg. centigrade30DA AVG report only all year
SW1Temperature, water deg. centigradeDAILY MX report only all year
SW1Flow rate30DA AVG report only all year
SW1Flow rateDAILY MX report only all year
SW1pHDAILY MN report only all year
SW1pHDAILY MX report only all year
SW1Solids, total suspended30DA AVG report only all year
SW1Solids, total suspendedDAILY MX report only all year
SW1Nitrogen, nitrate total [as N]30DA AVG report only all year
SW1Nitrogen, nitrate total [as N]DAILY MX report only all year
SW1Cyanide, weak acid, dissociable30DA AVG report only all year
SW1Cyanide, weak acid, dissociableDAILY MX report only all year
SW1Hardness, total [as CaCO3]30DA AVG report only all year
SW1Hardness, total [as CaCO3]DAILY MX report only all year
SW1Arsenic, total recoverable30DA AVG report only all year
SW1Arsenic, total recoverableDAILY MX report only all year
SW1Iron, total recoverable30DA AVG report only all year
SW1Iron, total recoverableDAILY MX report only all year
SW1Selenium, total recoverable30DA AVG report only all year
SW1Selenium, total recoverableDAILY MX report only all year
SW1Nickel, total recoverable30DA AVG report only all year
SW1Nickel, total recoverableDAILY MX report only all year
SW1Silver total recoverable30DA AVG report only all year
SW1Silver total recoverableDAILY MX report only all year
SW1Zinc, total recoverable30DA AVG report only all year
SW1Zinc, total recoverableDAILY MX report only all year
SW1Cadmium, total recoverable30DA AVG report only all year
SW1Cadmium, total recoverableDAILY MX report only all year
SW1Lead, total recoverable30DA AVG report only all year
SW1Lead, total recoverableDAILY MX report only all year
SW1Chromium, total recoverable30DA AVG report only all year
SW1Chromium, total recoverableDAILY MX report only all year
SW1Copper, total recoverable30DA AVG report only all year
SW1Copper, total recoverableDAILY MX report only all year
SW1Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
SW1Solids, total dissolved30DA AVG report only all year
SW1Solids, total dissolvedDAILY MX report only all year
SW1Mercury, total [as Hg]30DA AVG report only all year
SW1Mercury, total [as Hg]DAILY MX report only all year
SW6Temperature, water deg. centigrade30DA AVG report only all year
SW6Temperature, water deg. centigradeDAILY MX report only all year
SW6Flow rate30DA AVG report only all year
SW6Flow rateDAILY MX report only all year
SW6pHDAILY MN report only all year
SW6pHDAILY MX report only all year
SW6Solids, total suspended30DA AVG report only all year
SW6Solids, total suspendedDAILY MX report only all year
SW6Nitrogen, nitrate total [as N]30DA AVG report only all year
SW6Nitrogen, nitrate total [as N]DAILY MX report only all year
SW6Cyanide, weak acid, dissociable30DA AVG report only all year
SW6Cyanide, weak acid, dissociableDAILY MX report only all year
SW6Hardness, total [as CaCO3]30DA AVG report only all year
SW6Hardness, total [as CaCO3]DAILY MX report only all year
SW6Arsenic, total recoverable30DA AVG report only all year
SW6Arsenic, total recoverableDAILY MX report only all year
SW6Iron, total recoverable30DA AVG report only all year
SW6Iron, total recoverableDAILY MX report only all year
SW6Selenium, total recoverable30DA AVG report only all year
SW6Selenium, total recoverableDAILY MX report only all year
SW6Nickel, total recoverable30DA AVG report only all year
SW6Nickel, total recoverableDAILY MX report only all year
SW6Silver total recoverable30DA AVG report only all year
SW6Silver total recoverableDAILY MX report only all year
SW6Zinc, total recoverable30DA AVG report only all year
SW6Zinc, total recoverableDAILY MX report only all year
SW6Cadmium, total recoverable30DA AVG report only all year
SW6Cadmium, total recoverableDAILY MX report only all year
SW6Lead, total recoverable30DA AVG report only all year
SW6Lead, total recoverableDAILY MX report only all year
SW6Chromium, total recoverable30DA AVG report only all year
SW6Chromium, total recoverableDAILY MX report only all year
SW6Copper, total recoverable30DA AVG report only all year
SW6Copper, total recoverableDAILY MX report only all year
SW6Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
SW6Solids, total dissolved30DA AVG report only all year
SW6Solids, total dissolvedDAILY MX report only all year
SW6Mercury, total [as Hg]30DA AVG report only all year
SW6Mercury, total [as Hg]DAILY MX report only all year

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