Clean Water Act discharge permit · NPDES WAR308823
PROLOGIS EMERALD GATEWAY, Seattle, WA: NPDES WAR308823 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 34Pollutants under a numeric limit
- 29Pollutants with an effluent exceedance
PROLOGIS EMERALD GATEWAY, held by Sierra Construction, holds NPDES permit WAR308823. EPA’s file records it issued November 18, 2020 and expiring December 31, 2025. 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 | PROLOGIS EMERALD GATEWAY |
|---|---|
| Permittee as filed | Sierra Construction |
| NPDES ID | WAR308823 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | November 18, 2020 |
| Expiration date | December 31, 2025 |
| Issuing agency | State |
| Address | Seattle, WA 98168 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Green River (HUC 171100130305) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 34Pollutants on file
- 34Under a numeric limit
- 34With a violation of any kind
- 29With 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 |
|---|---|---|---|---|---|
| Manganese, total [as Mn] | 1 | 21 | 19 | December 31, 2025 | 291,900% over the limit |
| Copper, total [as Cu] | 1 | 5 | 3 | January 31, 2024 | 99,999% over the limit |
| Polychlorinated biphenyls [PCBs] | 1 | 4 | 2 | November 30, 2025 | 564,275% over the limit |
| Total Petroleum Hydrocarbons - Diesel | 1 | 36 | 1 | April 30, 2021 | 99,999% over the limit |
| Naphthalene | 1 | 6 | 1 | April 30, 2021 | 99,999% over the limit |
| Turbidity | 1 | 4 | 1 | November 30, 2023 | |
| Lead, total [as Pb] | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Zinc, total [as Zn] | 1 | 3 | 1 | August 31, 2022 | 167% over the limit |
| Benzene, ethylbenzene, toluene, xylene combination | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Chloroform | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Butyl benzyl phthalate | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Chrysene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Diethyl phthalate | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Dimethyl phthalate | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Fluoranthene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Fluorene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Indeno[1,2,3-cd]pyrene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| N-Nitrosodiphenylamine | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Phenanthrene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Benzo[ghi]perylene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Benzo[a]anthracene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| 1,2-Dichlorobenzene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Dibenz[a,h]anthracene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| 1,4-Dichlorobenzene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Di[2-ethylhexyl] phthalate [DEHP] | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Mercury, total [as Hg] | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| 1,2,4-Trimethylbenzene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| 1-Methylnaphthalene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| 2-Methylnaphthalene | 1 | 3 | 1 | April 30, 2021 | 99,999% over the limit |
| Total Petroleum Hydrocarbons - Gasoline | 1 | 59 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Arsenic, total [as As] | 1 | 2 | 0 | ||
| Cadmium, total [as Cd] | 1 | 2 | 0 | ||
| Chromium, total [as Cr] | 1 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES WAR308823.
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 15, 2026.