TRI facility · TRI 2024 reporting year

Miller Steam Plant

Total reported releases 950k lb more than doubled year over year (+182%). Total releases concentrations have more than halved since 2010.

4250 PORTER RD, Quinton, Alabama · 221112 · Electric Utilities · operated by Southern Co

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 950k.5.8M'10'12'14'16'18'20'22'24950k
Anomaly engine

Notable Signals

YEAR-OVER-YEAR SURGE · RELEASE SHIFT

Vanadium compounds

Vanadium compounds releases at Miller Steam Plant rose from 3k lb to 38k lb (12.2×) between 2023 and 2024.

YEAR-OVER-YEAR SURGE · RELEASE SHIFT

Barium And Barium Compounds

Barium And Barium Compounds releases at Miller Steam Plant rose from 59k lb to 498k lb (8.5×) between 2023 and 2024.

YEAR-OVER-YEAR SURGE · RELEASE SHIFT

Copper And Copper Compounds

Copper And Copper Compounds releases at Miller Steam Plant rose from 12k lb to 42k lb (3.4×) between 2023 and 2024.

LONG-ARC IMPROVEMENT · LONG-ARC SHIFT

Barium And Barium Compounds

Barium And Barium Compounds at Miller Steam Plant have more than three-quarters since 2010 (through 2024).

Showing the 4 most editorially weighted signals out of 6. Lower-severity signals fold into the chemical breakdown and history charts below.

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS N040

Barium And Barium Compounds

498k lb · +745% YoY

Barium And Barium Compounds concentrations have more than halved since 2010.

GENERALCAS 7664-93-9

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

190k lb · +6% YoY

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have fallen 14% since 2010.

GENERALCAS N100

Copper And Copper Compounds

42k lb · +241% YoY

Copper And Copper Compounds concentrations have more than halved since 2010.

RESPIRATORYCAS 7647-01-0

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

41k lb · +24% YoY

Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have fallen 41% since 2010.

GENERALCAS N770

Vanadium compounds

38k lb · +1118% YoY

Vanadium compounds concentrations have more than halved since 2010.

RESPIRATORYCAS 7664-39-3

Hydrogen fluoride

30k lb · +20% YoY

Hydrogen fluoride concentrations have more than halved since 2010.

RESPIRATORYCAS N450

Manganese And Manganese Compounds

27k lb · +740% YoY

Manganese And Manganese Compounds concentrations have more than halved since 2010.

GENERALCAS N982

Zinc compounds

26k lb · +577% YoY

Zinc compounds concentrations have more than halved since 2010.

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 1,249. Why we surface this →

POPULATION SHARE
19.6%

Low-income

POPULATION SHARE
33.2%

People of color

POPULATION SHARE
1.8%

Under age 5

POPULATION SHARE
16.3%

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.