Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SENTURY REAGENTS INC.
2515 COMMERCE DR, ROCK HILL, SC, 29730
Parent company: NA
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 | Ammonia | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Lead compounds | Total (lbs) | ||
| 2005 | — | 6 | — | 6 | ||
| 2004 | 1 | 10 | — | 11 | ||
| 2003 | 180 | 10 | — | 190 | ||
| 2002 | 962 | 7 | — | 969 | ||
| 2001 | 1,576 | 12 | — | 1,588 | ||
| 2000 | 1,692 | 12 | 1 | 1,705 | ||
| 1999 | 1,514 | — | 1 | 1,515 | ||
| 1998 | 1,713 | 28 | 5 | 1,746 | ||
| 1997 | 1,635 | 25 | — | 1,660 | ||
| 1996 | 1,197 | 123 | — | 1,320 | ||
| 1995 | — | 10 | — | 10 | ||
▎ 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.