Clean Water Act discharge permit · NPDES WA0020656
COLLEGE PLACE STP, College Place, WA: NPDES WA0020656 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
COLLEGE PLACE STP, held by College Place Stp, holds NPDES permit WA0020656. EPA’s file records it issued January 24, 2014 and expiring February 28, 2019. 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 | COLLEGE PLACE STP |
|---|---|
| Permittee as filed | College Place Stp |
| NPDES ID | WA0020656 |
| 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 | January 24, 2014 |
| Expiration date | February 28, 2019 |
| Issuing agency | State |
| Address | College Place, WA 99362 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Garrison Creek-Walla Walla River (HUC 170701020704) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 39Pollutants on file
- 0Under a numeric limit
- 39With a violation of any kind
- 9With 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 |
|---|---|---|---|---|---|
| Coliform, total general | 0 | 86 | 30 | July 31, 2026 | 2,352% over the limit |
| Temperature, water deg. centigrade | 0 | 40 | 12 | May 31, 2025 | 22% over the limit |
| Solids, total suspended | 0 | 69 | 11 | November 30, 2025 | 475% over the limit |
| pH, minimum | 0 | 8 | 7 | December 31, 2015 | |
| Oxygen, dissolved [DO] | 0 | 34 | 6 | May 31, 2026 | 24% over the limit |
| pH, maximum | 0 | 3 | 2 | January 31, 2015 | |
| BOD, 5-day, 20 deg. C | 0 | 147 | 1 | November 30, 2025 | 91% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 5 | 1 | May 31, 2016 | 60% over the limit |
| Solids, suspended percent removal | 0 | 2 | 1 | September 30, 2014 | 217% over the limit |
| BOD, percent removal [total] | 0 | 64 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 24 | 0 | ||
| pH | 0 | 21 | 0 | ||
| Copper, total [as Cu] | 0 | 21 | 0 | ||
| Cyanide, total [as CN] | 0 | 20 | 0 | ||
| Zinc, total [as Zn] | 0 | 20 | 0 | ||
| Mercury, total [as Hg] | 0 | 20 | 0 | ||
| Conductivity | 0 | 19 | 0 | ||
| Sulfate [as S] | 0 | 8 | 0 | ||
| Alkalinity, bicarbonate [as CaCO3] | 0 | 8 | 0 | ||
| Alkalinity, carbonate [as CaCO3] | 0 | 8 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 8 | 0 | ||
| Carbon, tot organic [TOC] | 0 | 8 | 0 | ||
| Calcium, total [as Ca] | 0 | 8 | 0 | ||
| Magnesium, total [as Mg] | 0 | 8 | 0 | ||
| Sodium, total [as Na] | 0 | 8 | 0 | ||
| Potassium, total [as K] | 0 | 8 | 0 | ||
| Chloride [as Cl] | 0 | 8 | 0 | ||
| Fluoride, total [as F] | 0 | 8 | 0 | ||
| Iron, total [as Fe] | 0 | 8 | 0 | ||
| Manganese, total [as Mn] | 0 | 8 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 6 | 0 | ||
| Flow | 0 | 5 | 0 | ||
| Solids, fixed dissolved | 0 | 4 | 0 | ||
| Solids, total dissolved | 0 | 4 | 0 | ||
| Depth to water level ft below landsurface | 0 | 4 | 0 | ||
| Turbidity | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Phosphorus, dissolved reactive [drp as P] | 0 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 1 | 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 WA0020656.
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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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 WA0020656 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.