Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SOUTHWESTERN BELL PRINTING CO
8100 KEMPWOOD DR, HOUSTON, TX, 77055
Parent company: SOUTHWESTERN BELL CORP
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 | Certain glycol ethers | Total (lbs) | ||||
| 1993 | 6,398 | 6,398 | ||||
| 1992 | 7,571 | 7,571 | ||||
| 1991 | 10,370 | 10,370 | ||||
| 1990 | 10,580 | 10,580 | ||||
| 1989 | 16,449 | 16,449 | ||||
▎ 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.