Corsica, City of

NPDES permit SD0021962 · Minor 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 11 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 (40)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade30DA AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Flow rate30DA AVG report only all year
001Flow rateDAILY MX report only 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
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 110 mg/L all year
001Solids, total suspendedMX 7D AV <= 165 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]30DA AVG report only Sep
001Nitrogen, ammonia total [as N]30DA AVG report only Feb
001Nitrogen, ammonia total [as N]30DA AVG report only Apr
001Nitrogen, ammonia total [as N]30DA AVG report only Jul
001Nitrogen, ammonia total [as N]30DA AVG report only Mar
001Nitrogen, ammonia total [as N]30DA AVG report only Nov
001Nitrogen, ammonia total [as N]30DA AVG report only Jan
001Nitrogen, ammonia total [as N]30DA AVG report only Aug
001Nitrogen, ammonia total [as N]30DA AVG report only Oct
001Nitrogen, ammonia total [as N]30DA AVG report only Dec
001Nitrogen, ammonia total [as N]30DA AVG report only Jun
001Nitrogen, ammonia total [as N]30DA AVG report only May
001Nitrogen, ammonia total [as N]DAILY MX <= 6.3 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX report only Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 8.6 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 8.6 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 11.9 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 19 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 2.9 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 13.2 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 13.1 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 5.7 mg/L May
001Phosphorus, total [as P]DAILY MX report only all year
001E. coli, colony forming units [CFU]30DA GEO report only May, Jun, Jul, Aug, Sep
001E. coli, colony forming units [CFU]DAILY MX report only May, Jun, Jul, Aug, Sep
001Flow, totalMO TOTAL report only all year
001Duration of dischargeMO TOTAL 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