TRI facility · TRI 2024 reporting year

Northridge Gas Plant

Total reported releases 12k lb more than doubled year over year (+91%). Total releases concentrations are up 59% since 2022.

4900 NS 381 RD., Calvin, Oklahoma · 211130 · Natural Gas Processing · operated by Enlink Midstream Operating LP

TOTAL RELEASES · 20222024
Bar chart of annual values from 2022 to 2024, in lb. Most recent year (2024): 12k.12k'22'23'2412k
Anomaly engine

Notable Signals

No notable signals at this facility for the current reporting year. See chemicals and equity context below for the full picture.

Chemicals reported · most recent year

What This Facility Releases

RESPIRATORYCAS 110-54-3

n-Hexane

5k lb · +172% YoY

n-Hexane concentrations have more than doubled since 2022.

CARCINOGENCAS 71-43-2

Benzene

4k lb · +273% YoY

Benzene concentrations have more than doubled since 2022.

RESPIRATORYCAS 67-56-1

Methanol

2k lb · +6% YoY

Methanol concentrations are roughly unchanged from 2022.

RESPIRATORYCAS 108-88-3

Toluene

634 lb · -39% YoY

Toluene concentrations have more than halved since 2022.

RESPIRATORYCAS 1330-20-7

Xylene (mixed isomers)

234 lb · -1% YoY

Xylene (mixed isomers) concentrations are roughly unchanged from 2022.

CARCINOGENCAS 100-41-4

Ethylbenzene

72 lb · YoY

Ethylbenzene concentrations are up 57% since 2022.

GENERALCAS 110-82-7

Cyclohexane

10 lb · 0% YoY

Cyclohexane concentrations are roughly unchanged from 2022.

GENERALCAS 115-07-1

Propylene

10 lb · YoY

Propylene concentrations are up 25% since 2022.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Hughes County County, OK (no Census block groups within 3 miles — falling back to containing county): a population of 13,409. Why we surface this →

POPULATION SHARE
20.8%

Low-income

POPULATION SHARE
39.5%

People of color

POPULATION SHARE
6.3%

Under age 5

POPULATION SHARE
18.9%

Over age 64

Source: Census ACS 2018-2022 (5-year), county-level fallback. Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.

Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.

What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.