Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CLOW VALVE MACHINE SHOP
902 S 2ND ST, OSKALOOSA, IA, 52577
Parent company: MCWANE INC
Carcinogen
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 | Xylene (mixed isomers) | Lead | Manganese | Copper | Lead compounds | Total (lbs) |
| 2024 | — | 0 | 5 | 1 | — | 7 |
| 2023 | — | — | 1 | — | — | 1 |
| 2022 | — | 0 | 2 | 1 | — | 4 |
| 2021 | — | 0 | 0 | 2 | — | 2 |
| 2020 | — | 0 | 2 | 19 | — | 21 |
| 2019 | — | 1 | 9 | 2 | — | 12 |
| 2018 | — | 1 | 7 | 1 | — | 9 |
| 2017 | — | 1 | 11 | 1 | — | 13 |
| 2016 | — | — | 7 | 1 | — | 8 |
| 2015 | — | 1 | 9 | 1 | — | 11 |
| 2014 | — | — | 6 | 1 | — | 7 |
| 2013 | — | — | 1 | — | — | 1 |
| 2012 | — | 5 | 1 | 1 | — | 10 |
| 2011 | — | 6 | 6 | 1 | — | 17 |
| 2010 | — | 1 | — | 2 | — | 3 |
| 2009 | — | — | — | — | 10 | 12 |
| 2008 | — | — | — | — | 9 | 9 |
| 2007 | — | 11 | — | — | — | 11 |
| 2006 | — | 7 | — | — | — | 7 |
| 2005 | — | 24 | — | — | — | 24 |
| 2004 | — | 47 | — | — | — | 47 |
| 2000 | 10,000 | — | — | — | — | 10,000 |
| 1999 | 10,000 | — | — | — | — | 10,000 |
| 1998 | 12,000 | — | — | — | — | 12,003 |
▎ 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.