SD Science And Technology Authority

NPDES permit SD0000043 · Major NON-POTW · administratively continued, expires 2009-09-30 · 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 2009-09-30 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 37 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (108)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheit30DA AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Temperature, water deg. fahrenheit30DA AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 75 deg F all year
001Flow rateDAILY MN report only all year
001Flow rateDAILY MX report only all year
001Flow rate30DA AVG report only all year
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001BOD, 5-day, 20 deg. CM6 report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 8.8 SU all year
001Solids, total suspended30DA AVG <= 10 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Nitrogen, ammonia total [as N]30DA AVG report only Jan, Feb, Dec
001Nitrogen, ammonia total [as N]30DA AVG report only Mar, Apr, May
001Nitrogen, ammonia total [as N]30DA AVG report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]30DA AVG report only Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Mar, Apr, May
001Nitrogen, ammonia total [as N]DAILY MX report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX report only Oct, Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 12.5 lb/d Jan, Feb, Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 13.6 lb/d Mar, Apr, May
001Nitrogen, ammonia total [as N]30DA AVG <= 10.7 lb/d Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 15.5 lb/d Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 23.4 lb/d Jan, Feb, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 25.4 lb/d Mar, Apr, May
001Nitrogen, ammonia total [as N]DAILY MX <= 20.2 lb/d Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 27.7 lb/d Oct, Nov
001Nitrogen, nitrate total [as N]30DA AVG report only all year
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Cyanide, weak acid, dissociable30DA AVG <= 3.9 lb/d all year
001Cyanide, weak acid, dissociableDAILY MX <= 3.9 lb/d all year
001Hardness, total [as CaCO3]30DA AVG report only all year
001Hardness, total [as CaCO3]M6 report only all year
001Arsenic, total recoverable30DA AVG report only all year
001Arsenic, total recoverableDAILY MX report only all year
001Arsenic, total recoverable30DA AVG <= 9.6 lb/d all year
001Arsenic, total recoverableDAILY MX <= 9.6 lb/d all year
001Selenium, total recoverable30DA AVG <= 5 ug/L all year
001Selenium, total recoverableDAILY MX <= 20 ug/L 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
001Nickel, total recoverable30DA AVG report only all year
001Nickel, total recoverableDAILY MX report only all year
001Silver total recoverable30DA AVG report only all year
001Silver total recoverableDAILY MX report only all year
001Silver total recoverable30DA AVG <= 1 lb/d all year
001Silver total recoverableDAILY MX <= 1 lb/d all year
001Zinc, total recoverable30DA AVG report only all year
001Zinc, total recoverableDAILY MX report only all year
001Zinc, total recoverable30DA AVG report only all year
001Zinc, total recoverableDAILY MX report only all year
001Cadmium, total recoverable30DA AVG report only all year
001Cadmium, total recoverableDAILY MX report only all year
001Cadmium, total recoverable30DA AVG report only all year
001Cadmium, total recoverableDAILY MX report only all year
001Lead, total recoverable30DA AVG report only all year
001Lead, total recoverableDAILY MX report only all year
001Lead, total recoverable30DA AVG <= 3.6 lb/d all year
001Lead, total recoverableDAILY MX <= 3.6 lb/d all year
001Chromium, total recoverable30DA AVG report only all year
001Chromium, total recoverableDAILY MX report only all year
001Chromium, total recoverable30DA AVG report only all year
001Chromium, total recoverableDAILY MX report only all year
001Copper, total recoverable30DA AVG report only all year
001Copper, total recoverableDAILY MX report only all year
001Copper, total recoverable30DA AVG <= 3.9 lb/d all year
001Copper, total recoverableDAILY MX <= 3.9 lb/d all year
001Mercury, total recoverable30DA AVG report only all year
001Mercury, total recoverableDAILY MX report only all year
001Mercury, total recoverable30DA AVG <= .031 lb/d all year
001Mercury, total recoverableDAILY MX <= .031 lb/d all year
001Hydrocarbons, petroleumDAILY MX <= 10 mg/L all year
001Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 all year
001Pass/Fail Static Renewal 7Day Chronic Pimephales promelasDAILY MX <= 0 pass=0;fail=1 all year
MTLpHDAILY MX report only all year
MTLpHDAILY MX report only all year
MTLSolids, total suspendedDAILY MX report only all year
MTLSolids, total suspendedDAILY MX report only all year
MTLCyanide, weak acid, dissociableDAILY MX report only all year
MTLCyanide, weak acid, dissociableDAILY MX report only all year
MTLHardness, total [as CaCO3]DAILY MX report only all year
MTLHardness, total [as CaCO3]DAILY MX report only all year
MTLArsenic, total recoverableDAILY MX report only all year
MTLArsenic, total recoverableDAILY MX report only all year
MTLSelenium, total recoverableDAILY MX report only all year
MTLSelenium, total recoverableDAILY MX report only all year
MTLNickel, total recoverableDAILY MX report only all year
MTLNickel, total recoverableDAILY MX report only all year
MTLSilver total recoverableDAILY MX report only all year
MTLSilver total recoverableDAILY MX report only all year
MTLZinc, total recoverableDAILY MX report only all year
MTLZinc, total recoverableDAILY MX report only all year
MTLCadmium, total recoverableDAILY MX report only all year
MTLCadmium, total recoverableDAILY MX report only all year
MTLLead, total recoverableDAILY MX report only all year
MTLLead, total recoverableDAILY MX report only all year
MTLChromium, total recoverableDAILY MX report only all year
MTLChromium, total recoverableDAILY MX report only all year
MTLCopper, total recoverableDAILY MX report only all year
MTLCopper, total recoverableDAILY MX report only all year
MTLMercury, total recoverableDAILY MX report only all year
MTLMercury, total recoverableDAILY MX report only all year
MTLHydrocarbons, petroleumDAILY MX report only all year
MTLHydrocarbons, petroleumDAILY 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