Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NRPJONESLLC
255 W 1100 N, NEPHI, UT, 84648
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 | Toluene | n-Hexane | 1,1,1-Trichloroethane | Zinc (fume or dust) | Lead | Total (lbs) |
| 2004 | 46,095 | — | — | — | — | 46,095 |
| 2003 | 48,130 | — | — | — | — | 48,130 |
| 2002 | 39,310 | — | — | — | — | 39,310 |
| 2001 | 37,231 | 11,780 | — | — | — | 49,011 |
| 2000 | 45,005 | 9,615 | — | — | — | 54,620 |
| 1999 | 45,085 | 9,990 | — | — | — | 55,075 |
| 1998 | 49,927 | 15,525 | — | — | — | 65,452 |
| 1997 | 39,941 | 15,525 | — | — | — | 55,466 |
| 1996 | — | 10,606 | — | — | — | 10,606 |
| 1995 | 34,918 | — | — | — | — | 34,918 |
| 1994 | 34,950 | — | — | — | — | 34,950 |
| 1993 | 34,950 | — | — | — | — | 34,950 |
| 1992 | 46,150 | — | 17,040 | 250 | — | 63,440 |
| 1991 | 33,447 | — | 11,127 | 250 | — | 44,824 |
| 1987 | — | — | — | — | 25 | 25 |
▎ 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.