Clean Water Act discharge permit · NPDES OR0001597
ARKEMA, Portland, OR: NPDES OR0001597 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
ARKEMA, held by ARKEMA, INC, holds NPDES permit OR0001597, which discharges to Willamette River (Rm 7.4). EPA’s file records it issued April 12, 1991 and expiring March 31, 1996. 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 | ARKEMA |
|---|---|
| Permittee as filed | ARKEMA, INC |
| NPDES ID | OR0001597 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | April 12, 1991 |
| Expiration date | March 31, 1996 |
| Address | Portland, OR 97210 |
| Receiving water | WILLAMETTE RIVER (RM 7.4) |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Willamette River (HUC 170900120202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 0Under a numeric limit
- 18With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Chromium, total [as Cr] | 0 | 47 | 5 | July 31, 2000 | 4,107% over the limit |
| Solids, total suspended | 0 | 51 | 3 | July 31, 1996 | 910% over the limit |
| Zinc, total [as Zn] | 0 | 25 | 1 | April 30, 1993 | 43% over the limit |
| Copper, total [as Cu] | 0 | 24 | 0 | ||
| Lead, total [as Pb] | 0 | 24 | 0 | ||
| Nickel, total [as Ni] | 0 | 24 | 0 | ||
| Chlorine, total residual | 0 | 24 | 0 | ||
| Temperature, water deg. centigrade | 0 | 16 | 0 | ||
| Conductivity | 0 | 16 | 0 | ||
| Sodium, total [as Na] | 0 | 16 | 0 | ||
| Chloride [as Cl] | 0 | 16 | 0 | ||
| pH range excursions, > 60 minutes | 0 | 9 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 8 | 0 | ||
| pH range excursions, monthly total accum | 0 | 8 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 0 | 7 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 0 | 7 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 0 | 6 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES OR0001597.
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
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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 OR0001597 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.