Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NAPCO PRECAST LLC
1701 E HOUSTON ST, BROKEN ARROW, OK, 74012
Parent company: NAPCO PRECAST LLC
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) | Total (lbs) | ||||
| 2023 | 88 | 88 | ||||
| 2022 | 122 | 122 | ||||
| 2021 | 158 | 158 | ||||
| 2020 | 271 | 271 | ||||
| 2019 | 249 | 249 | ||||
| 2018 | 219 | 219 | ||||
| 2017 | 128 | 128 | ||||
| 2016 | 81 | 81 | ||||
| 2015 | 81 | 81 | ||||
| 2014 | 96 | 96 | ||||
▎ 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.