Clean Water Act discharge permit · NPDES OR0044733
PORTLAND WATER BUREAU, Portland, OR: NPDES OR0044733 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
PORTLAND WATER BUREAU, held by CAROLLO ENGINEERS, INC., holds NPDES permit OR0044733, which discharges to Columbia Slough. EPA’s file records it issued November 15, 2023 and expiring October 31, 2028. 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.
What the register holds for PORTLAND WATER BUREAU: its NPDES ID, its permit type and status, its dates, its address in Portland, Oregon, its receiving water, and 12 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES OR0044733.
Identity
| Facility as filed | PORTLAND WATER BUREAU |
|---|---|
| Permittee as filed | CAROLLO ENGINEERS, INC. |
| NPDES ID | OR0044733 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 15, 2023 |
| Expiration date | October 31, 2028 |
| Issuing agency | Oregon Department of Environmental Quality |
| Address | Portland, OR 97230 |
| Receiving water | Columbia Slough |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Columbia Slough-Frontal Columbia River (HUC 170900120201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 0With a violation of any kind
- 0With 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 | 3 | 0 | 0 | ||
| Volume, total | 3 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| Temperature, water deg. centigrade | 1 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 1 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 | ||
| Chemical Oxygen Demand [COD] | 1 | 0 | 0 | ||
| Report due [yrmoda] | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES OR0044733.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES OR0044733.
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, OR0044733.
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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 OR0044733 there.
Nearby on the register
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- Every permit record in Oregon, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.