Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
LAFARGE MID ATLANTIC LLC -ROCKVILLE EAST CONCRETE
14824 S LAWN LN, ROCKVILLE, MD, 20850
Parent company: HOLCIM PARTICIPATIONS (US) 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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Lead And Lead Compounds | Lead compounds | Manganese compounds | Mercury And Mercury Compounds | Total (lbs) |
| 2024 | — | 0 | — | — | 1 | 1 |
| 2020 | — | — | 0 | — | — | 0 |
| 2019 | — | — | 0 | — | — | 1 |
| 2018 | — | 51 | — | — | 1 | 53 |
| 2017 | — | — | 15 | — | — | 16 |
| 2012 | — | — | 0 | 10 | — | 10 |
| 2011 | 750 | — | — | — | — | 750 |
| 2010 | — | — | — | — | — | 0 |
| 2009 | — | — | — | — | — | 0 |
| 2008 | — | — | — | — | — | 0 |
| 2007 | — | — | — | — | — | 0 |
| 2006 | — | — | — | — | — | 0 |
| 2005 | 35,437 | — | — | — | — | 35,437 |
| 2004 | — | — | — | — | — | 0 |
▎ 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.