Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NORTHROP GRUMMAN - ELECTRONIC SENSORS & SYSTEMS SECTOR
18901 EUCLID AVE, CLEVELAND, OH, 44117
Parent company: NORTHROP GRUMMAN CORP
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 | Freon 113 (CFC-113) | 1,1-Dichloro-1-fluoroethane (HCFC-141b) | 1,1,1-Trichloroethane | Chlorodifluoromethane (HCFC-22) | Methyl ethyl ketone | Total (lbs) |
| 1998 | — | 1,400 | — | — | — | 1,400 |
| 1997 | — | 14,800 | — | — | — | 14,800 |
| 1996 | — | 13,700 | — | — | — | 13,700 |
| 1995 | — | 64,000 | — | — | — | 64,000 |
| 1994 | — | 51,100 | — | 51,100 | — | 102,200 |
| 1993 | 6,900 | — | 6,700 | — | — | 13,600 |
| 1992 | 11,200 | — | 12,000 | — | — | 23,200 |
| 1991 | 40,000 | — | 28,000 | — | — | 68,000 |
| 1990 | 55,100 | — | 6,600 | — | — | 61,700 |
| 1989 | 53,000 | — | 17,000 | — | — | 70,000 |
| 1988 | — | — | 18,000 | — | — | 18,000 |
| 1987 | — | — | — | — | 5,300 | 8,800 |
▎ 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.