Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
CERTAINTEED CORP
10131 GOVERNOR LN BLVD, WILLIAMSPORT, MD, 21795
Parent company: COMPAGNIE DE SAINT GOBAIN
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Mixture | 1,1,1-Trichloroethane | Styrene | Antimony compounds | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total |
|---|---|---|---|---|---|---|
| 2023 | — | — | — | — | — | 260 |
| 2011 | — | — | — | 250 | 250 | 500 |
| 2010 | — | — | — | 250 | 250 | 500 |
| 2009 | — | — | — | 250 | 250 | 500 |
| 2008 | — | — | — | 250 | 250 | 500 |
| 2004 | — | — | 2,505 | — | 10 | 3,266 |
| 1995 | — | — | — | 167 | 120 | 377 |
| 1992 | 32,700 | — | — | — | — | 32,700 |
| 1988 | — | 12,059 | — | — | — | 12,059 |