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Facility profile

Shell Opus Puget Sound Refinery

Significant Violation across 12 of the last 12 quarters, with $140,128 in recorded penalties.

Significant Violation Petroleum TRI + Clean Air Act + Clean Water Act + RCRA 110008214360 Skagit County
Noncompliance quarters
12

Counted from the imported ECHO record over the last 12 quarters.

Penalties
$140,128

Recorded enforcement amount carried into the facility page.

Last inspection
2025-09-30

Displayed as plain language instead of hidden in agency exports.

Trend
Watch

Reported on-site releases are higher in 2024 than in 2022.

Year Air Water Land Total
2022 88,379 lbs 1,979 lbs 1,611 lbs 91,968 lbs
2023 93,397 lbs 130,237 lbs 1,214 lbs 224,848 lbs
2024 92,448 lbs 71,980 lbs 320 lbs 164,748 lbs
Chemical breakdown

What this facility is reporting

  • water 69,125 lbs

    Nitrate compounds (water dissociable; reportable only when in aqueous solution)

    Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.

  • air 53,891 lbs

    Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 6,143 lbs

    Xylene (mixed isomers)

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 4,845 lbs

    Ammonia

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 4,540 lbs

    n-Hexane

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 4,486 lbs

    Hydrogen sulfide

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 3,908 lbs

    Toluene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 2,545 lbs

    Propylene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 2,310 lbs

    Cyclohexane

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 2,052 lbs

    Benzene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 1,905 lbs

    Formaldehyde

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 1,106 lbs

    Ethylbenzene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 968 lbs

    Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 908 lbs

    Isoprene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 767 lbs

    1, 2, 4-Trimethylbenzene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 691 lbs

    Naphthalene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 500 lbs

    Acetaldehyde

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • water 419 lbs

    Phenol

    Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.

  • air 397 lbs

    Nickel compounds

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 364 lbs

    Hydrogen cyanide

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • land 324 lbs

    Certain glycol ethers

    Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.

  • air 300 lbs

    Ethylene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 269 lbs

    Methanol

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 263 lbs

    Cumene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 260 lbs

    Molybdenum trioxide

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 224 lbs

    Diethanolamine

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 223 lbs

    Biphenyl

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 181 lbs

    Carbonyl sulfide

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 167 lbs

    Styrene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 142 lbs

    Cresol (mixed isomers)

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • water 131 lbs

    Vanadium compounds

    Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.

  • air 126 lbs

    Lead compounds

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 70 lbs

    Carbon disulfide

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 45 lbs

    Polycyclic aromatic compounds

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 44 lbs

    Phenanthrene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 33 lbs

    1, 3-Butadiene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • water 29 lbs

    2, 4-Dimethylphenol

    Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.

  • air 26 lbs

    Cobalt compounds

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 12 lbs

    Mercury compounds

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 8 lbs

    Anthracene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

  • air 2 lbs

    Benzo[g, h, i]perylene

    Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.

Enforcement layer

Why the ECHO-style detail matters

Significant Violation across 12 of the last 12 quarters, with $140,128 in recorded penalties.

Significant Violation Last recorded inspection: 2025-09-30. Total penalties on record: $140,128.