LAC Minerals (USA) LLC

NPDES permit SD0026883 · Major NON-POTW · effective, expires 2028-12-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 44 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 (129)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade30DA AVG report only Apr, May, Jun, Jul, Aug, Sep
001Temperature, water deg. centigrade30DA AVG report only Jan, Feb, Mar, Oct, Nov, Dec
001Temperature, water deg. centigradeDAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Temperature, water deg. centigradeDAILY MX report only Jan, Feb, Mar, Oct, Nov, Dec
001Flow rate30DA AVG report only Apr, May, Jun, Jul, Aug, Sep
001Flow rate30DA AVG report only Jan, Feb, Mar, Oct, Nov, Dec
001Flow rateDAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Flow rateDAILY MX report only Jan, Feb, Mar, Oct, Nov, Dec
001pHDAILY MN >= 6.5 SU Jan, Feb, Mar, Oct, Nov, Dec
001pHDAILY MN >= 6.5 SU Apr, May, Jun, Jul, Aug, Sep
001pHDAILY MX <= 9 SU Jan, Feb, Mar, Oct, Nov, Dec
001pHDAILY MX <= 9 SU Apr, May, Jun, Jul, Aug, Sep
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 53 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L Apr, May, Jun, Jul, Aug, Sep
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L Jan, Feb, Mar, Oct, Nov, Dec
001Hardness, total [as CaCO3]DAILY MN report only Apr, May, Jun, Jul, Aug, Sep
001Hardness, total [as CaCO3]DAILY MN report only Jan, Feb, Mar, Oct, Nov, Dec
001Hardness, total [as CaCO3]30DA AVG report only Apr, May, Jun, Jul, Aug, Sep
001Hardness, total [as CaCO3]30DA AVG report only Jan, Feb, Mar, Oct, Nov, Dec
001Sulfate, total [as SO4]30DA AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Arsenic, total recoverable30DA AVG report only all year
001Arsenic, total recoverableDAILY MX report only all year
001Iron, total recoverable30DA AVG report only all year
001Iron, total recoverableDAILY MX report only all year
001Selenium, total recoverable30DA AVG report only all year
001Selenium, total recoverableDAILY MX report only all year
001Nickel, total recoverable30DA AVG report only all year
001Nickel, total recoverableDAILY MX report only all year
001Zinc, total recoverable30DA AVG report only all year
001Zinc, total recoverableDAILY MX report only all year
001Aluminum, total recoverable30DA AVG report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Cadmium, total recoverable30DA AVG report only Apr, May, Jun, Jul, Aug, Sep
001Cadmium, total recoverable30DA AVG report only Jan, Feb, Mar, Oct, Nov, Dec
001Cadmium, total recoverableDAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Cadmium, total recoverableDAILY MX report only Jan, Feb, Mar, Oct, Nov, Dec
001Lead, total recoverable30DA AVG report only all year
001Lead, total recoverableDAILY MX report only all year
001Copper, total recoverable30DA AVG report only Apr, May, Jun, Jul, Aug, Sep
001Copper, total recoverable30DA AVG report only Jan, Feb, Mar, Oct, Nov, Dec
001Copper, total recoverableDAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Copper, total recoverableDAILY MX report only Jan, Feb, Mar, Oct, Nov, Dec
001Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 Apr, May, Jun, Jul, Aug, Sep
001Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 Jan, Feb, Mar, Oct, Nov, Dec
001Solids, total dissolved30DA AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Mercury, total recoverable30DA AVG report only all year
001Mercury, total recoverableDAILY MX report only all year
001Oil and grease visualDAILY MX <= 0 N=0;Y=1 Apr, May, Jun, Jul, Aug, Sep
001Oil and grease visualDAILY MX <= 0 N=0;Y=1 Jan, Feb, Mar, Oct, Nov, Dec
004Temperature, water deg. centigrade30DA AVG report only Apr, May, Jun, Jul, Aug, Sep
004Temperature, water deg. centigrade30DA AVG report only Jan, Feb, Mar, Oct, Nov, Dec
004Temperature, water deg. centigradeDAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Temperature, water deg. centigradeDAILY MX report only Jan, Feb, Mar, Oct, Nov, Dec
004Flow rate30DA AVG report only Apr, May, Jun, Jul, Aug, Sep
004Flow rate30DA AVG report only Jan, Feb, Mar, Oct, Nov, Dec
004Flow rateDAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Flow rateDAILY MX report only Jan, Feb, Mar, Oct, Nov, Dec
004Oxygen, dissolved [DO]DAILY MN report only all year
004Oxygen, dissolved [DO]30DA AVG report only all year
004pHDAILY MN >= 6.5 SU Jan, Feb, Mar, Oct, Nov, Dec
004pHDAILY MN >= 6.5 SU Apr, May, Jun, Jul, Aug, Sep
004pHDAILY MX <= 8.8 SU Jan, Feb, Mar, Oct, Nov, Dec
004pHDAILY MX <= 8.8 SU Apr, May, Jun, Jul, Aug, Sep
004Solids, total suspended30DA AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 53 mg/L all year
004Oil and grease, hexane extr methodDAILY MX <= 10 mg/L Apr, May, Jun, Jul, Aug, Sep
004Oil and grease, hexane extr methodDAILY MX <= 10 mg/L Jan, Feb, Mar, Oct, Nov, Dec
004Hardness, total [as CaCO3]DAILY MN report only all year
004Hardness, total [as CaCO3]30DA AVG report only all year
004Iron, total recoverable30DA AVG report only all year
004Iron, total recoverableDAILY MX report only all year
004Selenium, total recoverable30DA AVG <= 5 ug/L Apr, May, Jun, Jul, Aug, Sep
004Selenium, total recoverable30DA AVG <= 5 ug/L Jan, Feb, Mar, Oct, Nov, Dec
004Selenium, total recoverableDAILY MX <= 12.8 ug/L Apr, May, Jun, Jul, Aug, Sep
004Selenium, total recoverableDAILY MX <= 12.8 ug/L Jan, Feb, Mar, Oct, Nov, Dec
004Zinc, total recoverable30DA AVG report only all year
004Zinc, total recoverableDAILY MX report only all year
004Aluminum, total recoverable30DA AVG report only all year
004Aluminum, total recoverableDAILY MX report only all year
004Lead, total recoverable30DA AVG report only all year
004Lead, total recoverableDAILY MX report only all year
004Copper, total recoverable30DA AVG report only all year
004Copper, total recoverableDAILY MX report only all year
004Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 Apr, May, Jun, Jul, Aug, Sep
004Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 Jan, Feb, Mar, Oct, Nov, Dec
004Solids, total dissolved30DA AVG report only all year
004Solids, total dissolvedDAILY MX report only all year
004Mercury, total recoverable30DA AVG report only all year
004Mercury, total recoverableDAILY MX report only all year
004Oil and grease visualDAILY MX <= 0 N=0;Y=1 Jan, Feb, Mar, Oct, Nov, Dec
004Oil and grease visualDAILY MX <= 0 N=0;Y=1 Apr, May, Jun, Jul, Aug, Sep
STRTemperature, water deg. centigradeDAILY MX report only all year
STRTemperature, water deg. centigradeDAILY MX report only all year
STRFlow rateDAILY MX report only all year
STRFlow rateDAILY MX report only all year
STRpHDAILY MN report only all year
STRpHDAILY MN report only all year
STRpHDAILY MX report only all year
STRpHDAILY MX report only all year
STROil and grease, hexane extr methodDAILY MX report only all year
STROil and grease, hexane extr methodDAILY MX report only all year
STRNitrogen, nitrate total [as N]DAILY MX report only all year
STRHardness, total [as CaCO3]DAILY MN report only all year
STRHardness, total [as CaCO3]DAILY MN report only all year
STRArsenic, total recoverableDAILY MX report only all year
STRIron, total recoverableDAILY MX report only all year
STRIron, total recoverableDAILY MX report only all year
STRSelenium, total recoverableDAILY MX report only all year
STRSelenium, total recoverableDAILY MX report only all year
STRNickel, total recoverableDAILY MX report only all year
STRSilver total recoverableDAILY MX report only all year
STRSilver total recoverableDAILY MX report only all year
STRZinc, total recoverableDAILY MX report only all year
STRZinc, total recoverableDAILY MX report only all year
STRAluminum, total recoverableDAILY MX report only all year
STRAluminum, total recoverableDAILY MX report only all year
STRCadmium, total recoverableDAILY MX report only all year
STRCadmium, total recoverableDAILY MX report only all year
STRLead, total recoverableDAILY MX report only all year
STRLead, total recoverableDAILY MX report only all year
STRChromium, total recoverableDAILY MX report only all year
STRCopper, total recoverableDAILY MX report only all year
STRCopper, total recoverableDAILY MX report only all year
STRSolids, total dissolvedDAILY MX report only all year
STROil and grease visualDAILY MX report only all year
STROil and grease visualDAILY MX report only all year

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