EPA Air · by county
Air-emissions sources in Humphreys County, Mississippi
- 4Facilities
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Every stationary source in Humphreys County, Mississippi that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
Every source’s record in Humphreys County
Each of the 4 operating major, synthetic minor and minor sources in Humphreys County, Mississippi has a record page: every source in Humphreys County, A to Z.
Stack tests in Humphreys County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 4
- 2024 stack tests 4
- 2023 stack tests 4
- 2022 stack tests 4
- 2021 stack tests 4
- 2020 stack tests 5
- 2019 stack tests 7
Stack tests in Humphreys County, year by year
Other counties in Mississippi
Every county in the state with at least three sources on file.
- Covington County 20
- DeSoto County 21
- Forrest County 24
- Franklin County 3
- George County 5
- Grenada County 15
- Hancock County 14
- Harrison County 30
- Hinds County 77
- Holmes County 3
- Issaquena County 3
- Itawamba County 10
- Jackson County 28
- Jasper County 17
- Jefferson County 3
- Jefferson Davis County 6
- Jones County 27
- Kemper County 3
- Lafayette County 5
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| COLUMBIA GULF TRANSMISSION LLC, INVERNESS COMPRESSOR STATION | Major source | No |
| HUMPHREYS COUNTY MEMORIAL HOSPITAL | Minor source | No |
| TENNESSEE GAS PIPELINE COMPANY LLC, ISOLA COMPRESSOR STATION NUMBER 843 | Major source | No |
| TEXAS GAS TRANSMISSION LLC, ISOLA COMPRESSOR STATION | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Humphreys county, MS. It lists 4 facilities in Humphreys county and 2 major sources.