Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
US DOE Y-12 NATL SECURITY COMPLEX CNS LLC
BEAR CREEK RD, OAK RIDGE, TN, 37830
Parent company: NA
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 | Aluminum oxide (fibrous forms) | Freon 113 (CFC-113) | Methanol | 1,1,1-Trichloroethane | Nitric acid | Total (lbs) |
| 1992 | — | — | 58,228 | — | 20,824 | 132,071 |
| 1991 | — | 26,531 | 61,046 | — | 21,457 | 174,458 |
| 1990 | — | 57,705 | 87,923 | 30,580 | 57,942 | 278,620 |
| 1989 | — | 174,516 | 53,306 | 48,244 | 75,519 | 410,480 |
| 1988 | 4,423,270 | 258,000 | 72,338 | 108,450 | — | 4,994,344 |
| 1987 | — | — | — | 93,250 | — | 113,500 |
▎ 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.