South Dakota Ellsworth Development Authority (SDEDA)

NPDES permit SD0028611 · Major POTW · effective, expires 2031-03-31 · 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

4values over a limit
0required values missing, on 0 form(s)
0of 26 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (2), Toxicity [chronic], Ceriodaphnia dubia (1), pH (1).

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 (117)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheit30DA AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Flow rate30DA AVG report only all year
001Flow rateDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMX 7D AV <= 45 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedMX 7D AV <= 45 mg/L all year
001Solids, total suspended30DA AVG report only all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]30DA AVG <= 1.5 mg/L Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 3.2 mg/L Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 1.6 mg/L Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 1.3 mg/L May
001Nitrogen, ammonia total [as N]30DA AVG <= .7 mg/L Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 3.2 mg/L Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 3.9 mg/L Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 1.7 mg/L Jun
001Nitrogen, ammonia total [as N]30DA AVG <= 2.5 mg/L Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 1.2 mg/L Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 1.6 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 4.8 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 3.2 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 4 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 3.7 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 4 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 5.5 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 8.4 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 4 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 3.5 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 2.5 mg/L Oct
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Cyanide, free [as free]VALUE report only all year
001Cyanide, free [as free]VALUE report only all year
001Cyanide, weak acid, dissociableVALUE report only all year
001Cyanide, weak acid, dissociableVALUE report only all year
001Cyanide, total [as CN]VALUE report only all year
001Cyanide, total [as CN]VALUE report only all year
001Hardness, total [as CaCO3]VALUE report only all year
001Hardness, total [as CaCO3]VALUE report only all year
001Arsenic, total recoverableVALUE report only all year
001Arsenic, total recoverableVALUE report only all year
001Selenium, total recoverable30DA AVG report only all year
001Selenium, total recoverableDAILY MX report only all year
001Selenium, total recoverable30DA AVG report only all year
001Selenium, total recoverableDAILY MX report only all year
001Thallium, total recoverableVALUE report only all year
001Thallium, total recoverableVALUE report only all year
001Beryllium, total recoverable [as Be]VALUE report only all year
001Beryllium, total recoverable [as Be]VALUE report only all year
001Nickel, total recoverableVALUE report only all year
001Nickel, total recoverableVALUE report only all year
001Silver total recoverableVALUE report only all year
001Silver total recoverableVALUE report only all year
001Zinc, total recoverableVALUE report only all year
001Zinc, total recoverableVALUE report only all year
001Aluminum, total recoverableVALUE report only all year
001Aluminum, total recoverableVALUE report only all year
001Cadmium, total recoverableVALUE report only all year
001Cadmium, total recoverableVALUE report only all year
001Lead, total recoverableVALUE report only all year
001Lead, total recoverableVALUE report only all year
001Chromium, total recoverableVALUE report only all year
001Chromium, total recoverableVALUE report only all year
001Copper, total recoverableVALUE report only all year
001Copper, total recoverableVALUE report only all year
001Molybdenum, total recoverableVALUE report only all year
001Molybdenum, total recoverableVALUE report only all year
001Antimony, total recoverableVALUE report only all year
001Antimony, total recoverableVALUE report only all year
001PhenolsVALUE report only all year
001PhenolsVALUE report only all year
001E. coli, colony forming units [CFU]30DA GEO <= 630 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, colony forming units [CFU]DAILY MX <= 1178 #/100mL May, Jun, Jul, Aug, Sep
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX < 1 tox acute all year
001Toxicity [chronic], Ceriodaphnia dubiaDAILY MX < 1.3 tox chronic all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX < 1 tox acute all year
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX < 1.3 tox chronic all year
001Mercury, total recoverableVALUE report only all year
001Mercury, total recoverableVALUE report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
001BOD, 5-day, percent removalMO MIN >= 85 % all year
001Solids, suspended percent removalMO MIN >= 85 % all year
001Oil and grease visualDAILY MX <= 0 abst=0;prst=1 all year
001Report due [yrmoda]VALUE <= 0 Y=0;N=1 all year
001Report due [yrmoda]VALUE <= 0 Y=0;N=1 all year
001Report due [yrmoda]VALUE <= 0 Y=0;N=1 all year
001Report due [yrmoda]VALUE <= 0 Y=0;N=1 all year
002Temperature, water deg. fahrenheitVALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002ConductivityVALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002pHVALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Solids, total suspended30DA AVG <= 30 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Solids, total suspendedDAILY MX <= 45 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, ammonia total [as N]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Nitrogen, nitrite total [as N]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Nitrogen, nitrate total [as N]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Nitrogen, Kjeldahl, total [as N]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Phosphorus, total [as P]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Sodium adsorption ratioVALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Chloride [as Cl]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Sulfate, total [as SO4]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002E. coli, colony forming units [CFU]VALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Flow, irrigationVALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Total Amount Land AppliedMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Duration of Land ApplicationMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct
002Solids, total dissolvedVALUE report only Apr, May, Jun, Jul, Aug, Sep, Oct

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