TRI facility · TRI 2024 reporting year

Colonial Chemical INC

Total reported releases 77k lb fell sharply year over year (-51%). Total releases concentrations are up 96% since 2013.

225 COLONIAL DR, South Pittsburg, Tennessee · 325611 · Chemicals

TOTAL RELEASES · 20132024
Bar chart of annual values from 2013 to 2024, in lb. Most recent year (2024): 77k.312k'13'15'17'19'21'23'2477k
Anomaly engine

Notable Signals

YEAR-OVER-YEAR DROP · RELEASE SHIFT

Acrylic acid

Acrylic acid releases at Colonial Chemical INC fell from 14k lb to 1k lb (92% lower) between 2023 and 2024.

Chemicals reported · most recent year

What This Facility Releases

RESPIRATORYCAS 67-56-1

Methanol

75k lb · -47% YoY

Methanol concentrations have more than doubled since 2013.

RESPIRATORYCAS 79-10-7

Acrylic acid

1k lb · -92% YoY

Acrylic acid concentrations have more than doubled since 2021.

GENERALCAS 111-41-1

N-Hydroxyethylethylenediamine

361 lb · YoY

N-Hydroxyethylethylenediamine volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.

RESPIRATORYCAS 111-42-2

Diethanolamine

350 lb · -86% YoY

Diethanolamine concentrations have more than halved since 2013.

RESPIRATORYCAS 108-31-6

Maleic anhydride

239 lb · +204% YoY

Maleic anhydride concentrations have more than doubled since 2021.

CARCINOGENCAS 106-89-8

Epichlorohydrin

218 lb · +6% YoY

Epichlorohydrin concentrations have more than doubled since 2013.

RESPIRATORYCAS 100-44-7

Benzyl chloride

78 lb · +1571% YoY

Benzyl chloride concentrations have more than doubled since 2019.

CARCINOGENCAS 64-67-5

Diethyl sulfate

12 lb · +19% YoY

Diethyl sulfate concentrations are up 69% since 2013.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 839. Why we surface this →

POPULATION SHARE
48.5%

Low-income

POPULATION SHARE
1.8%

People of color

POPULATION SHARE
5.7%

Under age 5

POPULATION SHARE
24.7%

Over age 64

Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). 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.