Facility detail

WEYERHAEUSER NR

105 MILLS DR, COLUMBIA FALLS, MT, 59912

Parent company: WEYERHAEUSER CO

Carcinogen PBT — EPA classifications across all reporting years

Start another search Verify on EPA ECHO ↗

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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	Formaldehyde	Methanol	Ammonia	Lead compounds	Methyl isocyanate	Total (lbs)
2024	33,284	68,984	46,655	—	—	148,923
2023	31,774	63,503	44,289	—	—	139,566
2022	57,154	55,751	52,078	—	—	164,983
2021	62,829	69,593	65,409	—	—	197,831
2020	57,250	64,250	62,571	—	—	184,071
2019	55,250	64,250	60,110	—	—	179,610
2018	58,250	67,250	65,374	—	—	190,874
2017	59,250	68,250	68,750	—	—	196,250
2016	60,250	67,250	74,750	—	—	202,250
2015	60,250	67,250	63,750	27	—	191,277
2014	62,250	68,250	60,750	27	—	191,277
2013	62,250	68,250	62,750	27	—	193,277
2012	52,250	66,250	53,750	27	—	172,277
2011	43,250	55,250	37,750	27	—	136,277
2010	43,250	55,250	40,750	233	—	139,483
2009	15,250	44,250	33,750	380	—	93,630
2008	349,250	225,250	64,750	595	—	639,845
2007	459,250	307,250	86,750	647	—	853,897
2006	464,250	310,250	91,750	642	—	866,892
2005	463,250	310,250	86,750	598	—	860,848
2004	473,250	317,250	85,750	605	—	876,855
2003	314,250	293,250	75,750	—	—	683,250
2002	326,250	308,250	76,250	—	—	710,750
2001	331,250	310,250	56,050	—	—	697,550
2000	347,250	314,250	121,750	—	—	783,250
1999	348,250	314,250	79,050	—	—	741,550
1998	319,250	261,250	85,650	—	—	666,150
1997	443,250	264,250	307,750	—	—	1,015,250
1996	36,250	—	301,750	—	—	338,000
1995	38,500	—	276,750	—	—	315,250
1994	40,250	—	349,750	—	—	390,000
1993	70,900	—	298,750	—	—	369,650
1992	77,050	—	328,750	—	—	405,800
1991	66,550	—	273,750	—	—	340,300
1990	296	—	36,010	—	500	36,806
1989	142,000	—	28,750	—	—	170,750
1988	9,700	—	37,500	—	—	47,200
1987	24,000	—	35,750	—	—	59,750

▎ 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.