Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SUNROCK INDUSTRIES LLC - MDC
1503 CAMDEN AVENUE, DURHAM, NC, 27704
Parent company: THE SUNROCK GROUP INC
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Lead And Lead Compounds | Polycyclic aromatic compounds | Mercury And Mercury Compounds | Total (lbs) | ||
| 2024 | 178 | 0 | 1 | 178 | ||
| 2023 | 160 | 0 | 1 | 160 | ||
| 2022 | 104 | 0 | 0 | 105 | ||
| 2021 | 171 | 174 | 1 | 345 | ||
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.