Clean Water Act discharge permit · NPDES WA0001783
US OIL & REFINING TACOMA, Tacoma, WA: NPDES WA0001783 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 76Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
US OIL & REFINING TACOMA, held by US OIL AND REFINING CO., holds NPDES permit WA0001783. EPA’s file records it issued December 12, 2019 and expiring December 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | US OIL & REFINING TACOMA |
|---|---|
| Permittee as filed | US OIL AND REFINING CO. |
| NPDES ID | WA0001783 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 12, 2019 |
| Expiration date | December 31, 2024 |
| Issuing agency | State |
| Address | Tacoma, WA 98421 |
| Subwatershed | Hylebos Creek-Frontal Commencement Bay (HUC 171100190205) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 80Pollutants on file
- 76Under a numeric limit
- 78With a violation of any kind
- 1With 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; the 60 with the most exceedances of 80 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 21 | 75 | 2 | January 31, 2021 | 51% over the limit |
| BOD, 5-day, 20 deg. C | 10 | 636 | 0 | ||
| Nitrogen, ammonia total [as N] | 9 | 542 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 0 | 529 | 0 | ||
| Total phenols | 5 | 520 | 0 | ||
| Solids, total suspended | 6 | 517 | 0 | ||
| Sulfide, total [as S] | 6 | 517 | 0 | ||
| Chromium, hexavalent [as Cr] | 1 | 514 | 0 | ||
| Chromium, total [as Cr] | 0 | 514 | 0 | ||
| Flow | 4 | 379 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 361 | 0 | ||
| Sulfur, total | 0 | 316 | 0 | ||
| pH | 32 | 302 | 0 | ||
| Chemical Oxygen Demand [COD] | 2 | 275 | 0 | ||
| pH, maximum | 2 | 258 | 0 | ||
| Rainfall | 4 | 122 | 0 | ||
| Total Production - volume | 2 | 121 | 0 | ||
| Duration | 18 | 120 | 0 | ||
| Flow, total | 18 | 120 | 0 | ||
| Chemical oxygen demand [COD] | 4 | 119 | 0 | ||
| Hydrocarbons, petroleum | 0 | 117 | 0 | ||
| Oil and grease, hexane extr method | 20 | 36 | 0 | ||
| Oil and grease visual | 16 | 34 | 0 | ||
| Daily excursion time [min] | 2 | 33 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 26 | 0 | ||
| Carbon, dissolved organic [as C] | 4 | 25 | 0 | ||
| Alkalinity, total [as CaCO3] | 3 | 25 | 0 | ||
| Nitrogen, nitrite total [as N] | 3 | 25 | 0 | ||
| Nitrogen, nitrate total [as N] | 3 | 25 | 0 | ||
| Nitrogen, Kjeldahl, dissolved [as N] | 3 | 25 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 3 | 25 | 0 | ||
| Phosphorus, total [as P] | 3 | 25 | 0 | ||
| Phosphorus, dissolved | 3 | 25 | 0 | ||
| Phosphorus, dissolved reactive [drp as P] | 3 | 25 | 0 | ||
| Carbon, tot organic [TOC] | 3 | 25 | 0 | ||
| Zinc, total [as Zn] | 18 | 8 | 0 | ||
| Turbidity | 12 | 7 | 0 | ||
| Perfluoropentanoic acid (PFPeA) | 4 | 7 | 0 | ||
| Perfluorodecanesulfonic acid (PFDS) | 4 | 7 | 0 | ||
| Perfluorohexanesulfonic acid (PFHxS) | 4 | 7 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 4 | 7 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 4 | 7 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 4 | 7 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 4 | 7 | 0 | ||
| Perfluoro-2-methoxypropanoic acid | 4 | 7 | 0 | ||
| Perfluorooctanoic acid (PFOA) | 4 | 2 | 0 | ||
| Perfluorobutanoic acid (PFBA) | 4 | 2 | 0 | ||
| Perfluorooctanesulfonamide (PFOSA) | 4 | 2 | 0 | ||
| Perfluorohexanoic acid (PFHxA) | 4 | 2 | 0 | ||
| Perfluoroheptanoic acid (PFHpA) | 4 | 2 | 0 | ||
| Perfluorononanoic acid (PFNA) | 4 | 2 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 4 | 2 | 0 | ||
| Perfluoroundecanoic acid (PFUnA) | 4 | 2 | 0 | ||
| Perfluorododecanoic acid (PFDoA) | 4 | 2 | 0 | ||
| Perfluorotridecanoic acid (PFTrDA) | 4 | 2 | 0 | ||
| Perfluorotetradecanoic acid (PFTeDA) | 4 | 2 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE) | 4 | 2 | 0 | ||
| N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE) | 4 | 2 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 4 | 2 | 0 | ||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 4 | 2 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 31, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| March 17, 2025 | Permit Violations - Violation Specified in Comment | 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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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.