Black Hills Corp - Neil Simpson Complex

No Violation IdentifiedTRI ReporterClean Air ActRCRA
Inspections6all-program
Penalty actions0
Total penalties$0lifetime
On-site releases1.7M lbTRI reported

Location

Address13151 Wy-51
CityGillette
CountyCampbell County
StateWyoming
ZIP82718
Coordinates44.28537, -105.38249
EPA Registry ID110000600341

Compliance by program

ProgramStatusQuarters NC (last 12)Penalties
Clean Air ActNo Violation Identified0$0
Clean Water ActNot regulated under this program
RCRA Hazardous WasteNo Violation Identified0$0

TRI chemical releases

YearChemicalAirWaterLandTotal
2024Barium compounds (except for barium sulfate (CAS …81101.3M1.3M
2024Manganese63078.2k78.3k
2024Vanadium (except when contained in an alloy)59072.1k72.1k
2024Copper54063.6k63.7k
2024Zinc (fume or dust)43047.7k47.7k
2024Chromium23034.0k34.0k
2024Ammonia28.3k0028.3k
2024Nickel16025.4k25.4k
2024Lead17020.9k21.0k
2024Mercury3040417721
2024Dioxin and dioxin-like compounds3003
2023Barium compounds (except for barium sulfate (CAS …868331.1M1.1M
2023Manganese67192.8k92.9k
2023Copper58179.4k79.5k
2023Vanadium (except when contained in an alloy)64072.6k72.7k
2023Zinc (fume or dust)69048.1k48.2k
2023Chromium24137.9k38.0k
2023Ammonia31.0k0031.0k
2023Nickel17130.9k30.9k
2023Lead19121.9k22.0k
2023Mercury3400340680
2023Dioxin and dioxin-like compounds0000
2022Barium compounds (except for barium sulfate (CAS …817381.5M1.5M
2022Manganese63298.3k98.4k
2022Copper55176.8k76.9k
2022Vanadium (except when contained in an alloy)61071.5k71.6k
2022Zinc (fume or dust)41067.3k67.3k
2022Chromium22241.4k41.4k
2022Nickel16132.3k32.4k
2022Ammonia31.2k0031.2k

What this means

This facility is on EPA's regulated facility list (Clean Air Act, Clean Water Act, RCRA, or TRI) but has no significant violations on record. Inclusion in ECHO simply means the facility holds a permit or is subject to EPA reporting requirements.

EPA references

View detailed facility report at echo.epa.gov →