Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
S & H PRECISION MFG CO INC
135 MCDONOUGH ST, PORTSMOUTH, NH, 03801
Parent company: NA
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 | 1,1,1-Trichloroethane | Total |
|---|---|---|
| 1988 | 7,696 | 7,696 |
| 1987 | 8,290 | 8,290 |