Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
14489 CROGHAN PIKE, MOUNT UNION, PA, 17066
Parent company: NATIONAL OILWELL VARCO LP
Reported on-site TRI releases in pounds, grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases across all available years.
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Styrene | Methyl ethyl ketone | Dichloromethane | Dimethyl phthalate | Total |
|---|---|---|---|---|---|
| 2024 | 87,000 | — | — | 5 | 87,005 |
| 2023 | 107,800 | — | — | 5 | 107,805 |
| 2022 | 121,000 | — | — | — | 121,000 |
| 2021 | 132,000 | — | — | 6 | 132,006 |
| 2020 | 132,000 | — | — | 2 | 132,002 |
| 2019 | 154,000 | — | — | 2 | 154,002 |
| 2018 | 147,618 | — | — | 2 | 147,620 |
| 2017 | 143,000 | — | — | 2 | 143,002 |
| 2016 | 154,000 | — | — | — | 154,000 |
| 2015 | 143,000 | — | — | — | 143,000 |
| 2014 | 147,884 | — | — | — | 147,884 |
| 2013 | 137,463 | — | — | — | 137,463 |
| 2012 | 116,127 | — | — | — | 116,127 |
| 2011 | 84,700 | — | — | — | 84,700 |
| 2010 | 80,989 | — | — | — | 80,989 |
| 2009 | 66,080 | — | — | — | 66,080 |
| 2008 | 88,452 | — | — | — | 88,452 |
| 2007 | 79,200 | — | — | — | 79,200 |
| 2006 | 86,800 | — | — | 5 | 86,805 |
| 2005 | 72,600 | — | — | 5 | 72,605 |
| 2004 | 64,900 | — | — | 5 | 64,905 |
| 2003 | 52,900 | — | — | 5 | 52,905 |
| 2002 | 67,100 | — | — | 5 | 67,105 |
| 2001 | 109,900 | — | — | — | 109,900 |
| 2000 | 130,000 | — | — | — | 130,000 |
| 1999 | 121,000 | — | — | — | 121,000 |
| 1998 | 132,000 | — | — | — | 132,000 |
| 1997 | 120,000 | — | — | — | 120,000 |
| 1996 | 105,500 | — | — | — | 105,500 |
| 1995 | 104,400 | — | — | — | 104,400 |
| 1994 | 57,200 | — | — | — | 57,200 |
| 1993 | 64,900 | — | — | — | 64,900 |
| 1992 | 69,300 | — | — | — | 69,300 |
| 1991 | 111,300 | — | — | — | 111,300 |
| 1990 | 120,071 | 15,000 | — | 2 | 135,073 |
| 1989 | 108,800 | 57,000 | — | — | 165,800 |
| 1988 | — | 64,000 | 74,250 | — | 138,250 |
| 1987 | 82,650 | — | — | — | 82,650 |