Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SAPPI N.A. INC. - SOMERSET OPERATIONS
1329 WATERVILLE RD, SKOWHEGAN, ME, 04976
Parent company: SDW HOLDINGS CORP
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 | Sodium sulfate (solution) | Zinc compounds | Ammonia | Manganese compounds | Methanol | Total (lbs) |
| 2024 | — | 1,041,970 | 490,000 | 341,770 | 324,000 | 2,465,019 |
| 2023 | — | 1,107,290 | 439,900 | 287,852 | 271,600 | 2,354,730 |
| 2022 | — | 1,188,520 | 467,100 | — | 292,600 | 2,527,545 |
| 2021 | — | 730,100 | 481,000 | 293,790 | 295,200 | 2,094,453 |
| 2020 | — | 486,170 | 360,400 | 245,750 | 296,400 | 1,672,589 |
| 2019 | — | 663,000 | 397,000 | 278,800 | 287,600 | 1,920,722 |
| 2018 | — | 556,200 | 397,000 | 274,100 | 268,900 | 1,791,112 |
| 2017 | — | 843,100 | 413,600 | 303,300 | 270,100 | 2,123,613 |
| 2016 | — | 315,480 | 364,200 | 256,700 | 274,300 | 1,487,039 |
| 2015 | — | 497,410 | 456,200 | 278,700 | 265,200 | 1,776,914 |
| 2014 | — | 850,510 | 347,100 | 345,700 | 262,700 | 2,124,400 |
| 2013 | — | 645,790 | 341,600 | 379,900 | 271,000 | 1,970,073 |
| 2012 | — | 705,550 | 328,800 | 403,900 | 267,000 | 2,047,242 |
| 2011 | — | 306,820 | 319,800 | 436,100 | 258,100 | 1,633,806 |
| 2010 | — | 476,490 | 309,000 | 345,100 | 247,600 | 1,688,346 |
| 2009 | — | 365,160 | 298,200 | 330,900 | 246,900 | 1,539,735 |
| 2008 | — | 282,500 | 323,900 | 398,200 | 262,500 | 1,618,123 |
| 2007 | — | 348,300 | 359,400 | 425,690 | 277,900 | 1,740,639 |
| 2006 | — | 72,600 | 350,900 | 407,650 | 288,700 | 1,470,906 |
| 2005 | — | 67,800 | 345,200 | 332,580 | 260,000 | 1,315,490 |
| 2004 | — | 64,600 | 259,800 | 317,570 | 254,300 | 1,186,337 |
| 2003 | — | 93,300 | 276,500 | 413,300 | 228,600 | 1,324,224 |
| 2002 | — | 104,253 | 282,700 | 427,300 | 229,413 | 1,418,150 |
| 2001 | — | 91,140 | 286,600 | 377,560 | 220,956 | 1,338,211 |
| 2000 | — | 95,440 | 306,600 | 344,220 | 221,056 | 1,319,888 |
| 1999 | — | 27,408 | 322,300 | 195,358 | 214,528 | 1,164,919 |
| 1998 | — | 38,900 | 285,000 | 232,500 | 190,910 | 1,170,900 |
| 1997 | — | 1,400 | 271,000 | — | 183,400 | 1,005,453 |
| 1996 | — | 1,820 | 258,780 | — | 172,950 | 852,588 |
| 1995 | — | 11,410 | 384,250 | — | 173,497 | 1,255,198 |
| 1994 | — | 231,590 | 398,800 | — | 237,509 | 1,608,987 |
| 1993 | — | 378,400 | 147,900 | — | 293,500 | 1,380,902 |
| 1992 | — | 40,790 | 165,446 | — | 236,000 | 1,035,131 |
| 1991 | — | 43,250 | 130,150 | — | 170,000 | 994,394 |
| 1990 | — | 28,250 | 90,282 | — | 28,000 | 610,392 |
| 1989 | — | — | 9,500 | — | 57,000 | 426,170 |
| 1988 | — | — | 10,000 | — | — | 264,940 |
| 1987 | 38,001,700 | — | — | — | — | 38,001,700 |
▎ 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.