TRI facility · TRI 2024 reporting year

Sunrock Industries LLC - Mdc

Total reported releases 178 lb rose modestly year over year (+11%). Total releases concentrations have fallen 48% since 2021.

1503 CAMDEN AVENUE, Durham, North Carolina · 327320 · Nonmetallic Mineral Product · operated by The Sunrock Group INC

TOTAL RELEASES · 20212024
Bar chart of annual values from 2021 to 2024, in lb. Most recent year (2024): 178.345'21'22'23'24178
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

PBTCAS N420

Lead And Lead Compounds

178 lb · +11% YoY

Lead And Lead Compounds concentrations are roughly unchanged from 2021.

PBTCAS N458

Mercury And Mercury Compounds

1 lb · +25% YoY

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

PBTCAS N590

Polycyclic aromatic compounds

0 lb · -2% YoY

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

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (62 Census block groups, population-weighted demographics): a population of 76,024. Why we surface this →

POPULATION SHARE
44.4%

Low-income

POPULATION SHARE
71.1%

People of color

POPULATION SHARE
7.0%

Under age 5

POPULATION SHARE
9.6%

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.