Clean Water Act discharge permit · NPDES SD0022489
CANTON, CITY OF, Canton, SD: NPDES SD0022489 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 28Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CANTON, CITY OF, held by Canton, City of, holds NPDES permit SD0022489, which discharges to Big Sioux River. EPA’s file records it issued June 20, 2007 and expiring June 30, 2012. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CANTON, CITY OF |
|---|---|
| Permittee as filed | Canton, City of |
| NPDES ID | SD0022489 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 20, 2007 |
| Expiration date | June 30, 2012 |
| Issuing agency | SDDENR |
| Address | Canton, SD 57013 |
| Receiving water | BIG SIOUX RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Peterson Creek-Big Sioux River (HUC 101702031905) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 30Pollutants on file
- 28Under a numeric limit
- 30With a violation of any kind
- 7With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Coliform, fecal general | 4 | 27 | 7 | August 31, 2011 | 11,792% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 31 | 5 | July 31, 2010 | 29% over the limit |
| E. coli, colony forming units [CFU] | 0 | 7 | 5 | November 30, 2021 | 500% over the limit |
| Nitrogen, ammonia total [as N] | 26 | 52 | 3 | June 30, 2024 | 80% over the limit |
| Solids, total suspended | 2 | 28 | 2 | August 31, 2010 | 26% over the limit |
| pH | 2 | 26 | 2 | May 31, 2023 | |
| Chlorine, total residual | 1 | 14 | 1 | October 31, 2019 | 15,689% over the limit |
| Temperature, water deg. centigrade | 2 | 25 | 0 | ||
| Flow rate | 2 | 24 | 0 | ||
| E. coli, MTEC-MF | 2 | 15 | 0 | ||
| Chromium, total [as Cr] | 2 | 11 | 0 | ||
| Lead, total [as Pb] | 2 | 11 | 0 | ||
| Nickel, total [as Ni] | 2 | 11 | 0 | ||
| Zinc, total [as Zn] | 2 | 11 | 0 | ||
| Antimony, total [as Sb] | 2 | 11 | 0 | ||
| Selenium, total [as Se] | 2 | 11 | 0 | ||
| Mercury, total [as Hg] | 2 | 11 | 0 | ||
| Arsenic, total [as As] | 2 | 10 | 0 | ||
| Copper, total [as Cu] | 2 | 10 | 0 | ||
| Thallium, total [as Tl] | 2 | 10 | 0 | ||
| Molybdenum, total [as Mo] | 2 | 10 | 0 | ||
| Silver, total [as Ag] | 2 | 10 | 0 | ||
| Cyanide, weak acid, dissociable | 2 | 8 | 0 | ||
| Cyanide, total [as CN] | 2 | 8 | 0 | ||
| Beryllium, total [as Be] | 2 | 8 | 0 | ||
| Cadmium, total [as Cd] | 2 | 8 | 0 | ||
| Phenols | 2 | 8 | 0 | ||
| Flow, total | 1 | 8 | 0 | ||
| Duration of discharge | 1 | 7 | 0 | ||
| Flow | 0 | 6 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 1, 2025 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| July 25, 2024 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| July 19, 2024 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| July 19, 2024 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| June 29, 2024 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| June 23, 2024 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| June 23, 2024 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID SD0022489 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.