Clean Water Act discharge permit · NPDES OR0023876
SOUTH SUBURBAN STP, Klamath Falls, OR: NPDES OR0023876 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 14Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
SOUTH SUBURBAN STP, held by SOUTH SUBURBAN SANITARY DISTRICT, holds NPDES permit OR0023876, which discharges to Klamath River (Lake Ewauna). EPA’s file records it issued September 26, 1990 and expiring December 31, 2013. 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 | SOUTH SUBURBAN STP |
|---|---|
| Permittee as filed | SOUTH SUBURBAN SANITARY DISTRICT |
| NPDES ID | OR0023876 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 26, 1990 |
| Expiration date | December 31, 2013 |
| Address | Klamath Falls, OR 97603 |
| Receiving water | KLAMATH RIVER (LAKE EWAUNA) |
| Subwatershed | Klamath Falls-Klamath River (HUC 180102041201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 26Pollutants on file
- 14Under a numeric limit
- 22With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 22 | 33 | 15 | July 31, 2026 | 41% over the limit |
| Coliform, fecal MF, MFC broth, 44.5 C | 2 | 8 | 8 | June 30, 2002 | 2,775% over the limit |
| Solids, total suspended | 22 | 19 | 6 | March 31, 2021 | 46% over the limit |
| E. coli | 0 | 36 | 5 | February 28, 2021 | 99,999% over the limit |
| pH | 4 | 5 | 1 | April 30, 2007 | |
| Chlorine, total residual | 2 | 1 | 1 | February 28, 2021 | 20% over the limit |
| Nitrogen, nitrate total [as N] | 0 | 16 | 0 | ||
| Nitrogen, Total As N | 0 | 13 | 0 | ||
| Phosphorus, total [as P] | 2 | 12 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 4 | 0 | ||
| Chlorine usage | 2 | 2 | 0 | ||
| Flow rate | 0 | 2 | 0 | ||
| Solids, suspended percent removal | 2 | 1 | 0 | ||
| BOD, 5-day, percent removal | 1 | 1 | 0 | ||
| Temperature, water deg. centigrade | 0 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 1 | 0 | ||
| Alkalinity, total [as CaCO3] | 0 | 1 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 1 | 0 | ||
| Thallium, total [as Tl] | 0 | 1 | 0 | ||
| N-Nitrosodi-N-propylamine | 0 | 1 | 0 | ||
| Pentachlorophenol | 0 | 1 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 0 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 0 | 0 | ||
| Phosphate, ortho, dissolved [as P] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 1, 2026 | Failure to provide complete and accurate information (not related to annual report) | ST6 |
| July 30, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 1, 2022 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| November 1, 2022 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 1, 2020 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| November 1, 2020 | Reporting Violations - Improper/ Incorrect Reporting | 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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, OR0023876.
Start the watch
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How we handle your data → Privacy
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 OR0023876 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.