Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
CENTURY ASPHALT LTD - NAVIGATION PLANT
5303 NAVIGATION BLVD, HOUSTON, TX, 77011
Parent company: NA
Carcinogen
PBT
— 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 | Lead | Polycyclic aromatic compounds | Mercury | Total |
|---|---|---|---|---|
| 2009 | 11 | 0 | 2 | 14 |
| 2008 | 12 | 0 | 2 | 14 |
| 2006 | 11 | 0 | — | 11 |
| 2005 | 169 | 11 | — | 181 |