Total reported releases
Total reported releases at Holcim (Us) INC Holly Hill Plant have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Holcim (Us) INC Holly Hill Plant
Total reported releases 437k lb rose meaningfully year over year (+25%). Total releases concentrations have more than doubled since 2010.
2173 GARDNER BLVD, Holly Hill, South Carolina · 327310 · Nonmetallic Mineral Product · operated by Holcim Participations (Us) INC
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Ammonia
Ammonia concentrations are up 36% since 2010.
Hydrogen cyanide
Hydrogen cyanide volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Formaldehyde
Formaldehyde concentrations are up 66% since 2011.
Acetaldehyde
Acetaldehyde concentrations are roughly unchanged from 2011.
Benzene
Benzene concentrations are up 20% since 2011.
Naphthalene
Naphthalene concentrations have fallen 50% since 2011.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
Lead And Lead Compounds
Lead And Lead Compounds concentrations are up 16% 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 658. Why we surface this →
34.0%
Low-income
23.3%
People of color
4.7%
Under age 5
21.4%
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.