Clean Water Act discharge permit · NPDES OR0022608
MAUPIN STP, Maupin, OR: NPDES OR0022608 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
MAUPIN STP, held by MAUPIN, CITY OF, holds NPDES permit OR0022608, which discharges to Deschutes River (Rm 51.2). EPA’s file records it issued October 5, 2016 and expiring August 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MAUPIN STP |
|---|---|
| Permittee as filed | MAUPIN, CITY OF |
| NPDES ID | OR0022608 |
| 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 | October 5, 2016 |
| Expiration date | August 31, 2021 |
| Address | Maupin, OR 97037 |
| Receiving water | DESCHUTES RIVER (RM 51.2) |
| Subwatershed | Nena Creek (HUC 170703061103) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 19Pollutants on file
- 13Under a numeric limit
- 16With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| E. coli | 4 | 70 | 1 | December 31, 2024 | 20% over the limit |
| Chlorine, total residual | 2 | 2 | 1 | May 31, 2025 | 65% over the limit |
| Solids, total suspended | 13 | 70 | 0 | ||
| Temperature, water deg. centigrade | 1 | 48 | 0 | ||
| BOD, 5-day, 20 deg. C | 13 | 17 | 0 | ||
| pH | 6 | 7 | 0 | ||
| Solids, suspended percent removal | 1 | 7 | 0 | ||
| BOD, 5-day, percent removal | 1 | 3 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 2 | 0 | ||
| Chlorine usage | 1 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 1 | 0 | ||
| Oil & Grease | 0 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 1 | 0 | ||
| Phosphorus, total [as P] | 0 | 1 | 0 | ||
| Solids, total dissolved | 0 | 1 | 0 | ||
| Alkalinity, total [as CaCO3] | 1 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 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 |
|---|---|---|
| August 29, 2024 | Management Practice Violations - Failure to Maintain Records | ST6 |
| February 1, 2023 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| April 1, 2022 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| April 1, 2022 | Reporting Violations - Late Submittal of DMRs | ST6 |
| April 1, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| February 1, 2022 | Reporting Violations - Late Submittal of DMRs | 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, OR0022608.
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- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 OR0022608 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.