Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ROCKVILLE READY MIX CONCRETE
13900 PINEY MEETINGHOUSE RD, ROCKVILLE, MD, 20850
Parent company: AGGREGATE INDUSTRIES MANAGEMENT INC.
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 compounds | Lead And Lead Compounds | Mercury compounds | Total (lbs) | |
| 2020 | 956 | 0 | — | 2 | 958 | |
| 2019 | — | 0 | — | — | 0 | |
| 2018 | — | — | 6 | — | 6 | |
| 2017 | — | 9 | — | — | 9 | |
| 2016 | — | 36 | — | — | 36 | |
| 2015 | — | 61 | — | — | 61 | |
| 2014 | — | 28 | — | — | 28 | |
| 2013 | — | 0 | — | — | 0 | |
| 2002 | 547 | — | — | — | 547 | |
▎ 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.