Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
TERRA NITROGEN L.P. VERDIGRIS PLANT
6606 E 540 RD, CLAREMORE, OK, 74019
Parent company: CF INDUSTRIES HOLDINGS INC
Carcinogen
— 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 | Ammonia | Ammonium nitrate (solution) | Methanol | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Nitric acid | Total (lbs) |
| 2024 | 2,270,516 | — | 147,084 | 140,238 | 551 | 2,558,389 |
| 2023 | 1,587,016 | — | 25,901 | 140,096 | 563 | 1,754,315 |
| 2022 | 1,700,172 | — | 17,555 | 165,823 | 569 | 1,884,119 |
| 2021 | 2,229,157 | — | 72,640 | 128,000 | 1,554 | 2,432,441 |
| 2020 | 2,758,027 | — | 44,067 | 318,565 | 545 | 3,122,070 |
| 2019 | 2,408,548 | — | 144,171 | 118,705 | 500 | 2,674,174 |
| 2018 | 1,992,177 | — | 26,802 | 121,832 | 500 | 2,146,061 |
| 2017 | 1,849,103 | — | 56,638 | 308,921 | 500 | 2,216,912 |
| 2016 | 1,697,265 | — | 23,792 | 131,380 | 500 | 1,854,687 |
| 2015 | 1,797,440 | — | 70,861 | 123,285 | 500 | 1,996,836 |
| 2014 | 1,982,460 | — | 177,206 | 128,156 | 500 | 2,288,572 |
| 2013 | 1,677,506 | — | 11,436 | 155,979 | 500 | 1,849,921 |
| 2012 | 3,531,391 | — | 26,990 | 315,218 | 500 | 3,876,849 |
| 2011 | 2,586,700 | — | 9,850 | 210,250 | 500 | 2,808,800 |
| 2010 | 2,145,700 | — | 14,150 | 150,250 | 500 | 2,313,350 |
| 2009 | 1,684,100 | — | 25,150 | 140,250 | 500 | 1,852,750 |
| 2008 | 1,783,700 | — | 15,150 | 175,250 | 500 | 1,974,850 |
| 2007 | 2,384,500 | — | 131,750 | 180,250 | 500 | 2,701,000 |
| 2006 | 1,593,580 | — | 11,350 | 147,250 | 437 | 1,755,367 |
| 2005 | 2,604,050 | — | 82,750 | 170,250 | 437 | 2,857,737 |
| 2004 | 3,239,300 | — | 47,750 | 260,250 | 437 | 3,550,487 |
| 2003 | 3,125,700 | — | 30,750 | 220,250 | 440 | 3,381,050 |
| 2002 | 2,821,863 | — | 10,050 | 210,250 | 500 | 3,042,913 |
| 2001 | 2,890,200 | — | 226,750 | 160,250 | 500 | 3,277,950 |
| 2000 | 2,991,800 | — | 121,000 | 210,250 | 500 | 3,326,300 |
| 1999 | 2,792,000 | — | 111,000 | 270,250 | 320 | 3,176,320 |
| 1998 | 2,647,679 | — | 10,700 | 250,250 | 330 | 2,909,209 |
| 1997 | 3,151,100 | — | 5,400 | 164,250 | 8,100 | 3,330,350 |
| 1996 | 3,948,800 | — | 93,000 | 93,250 | 8,100 | 4,147,000 |
| 1995 | 5,247,700 | — | 23,000 | 170,250 | 7,600 | 5,452,382 |
| 1994 | 1,006,200 | 109,250 | 28,000 | — | 6,500 | 1,152,592 |
| 1993 | 452,300 | 342,250 | 60,000 | — | 7,500 | 864,701 |
| 1992 | 1,200,000 | 1,208,250 | 251,000 | — | 7,000 | 2,670,136 |
| 1991 | 1,973,000 | 1,445,250 | 741,000 | — | 79,000 | 4,242,598 |
| 1990 | 3,345,000 | 2,263,250 | 1,101,000 | — | 180,000 | 7,067,729 |
| 1989 | 2,893,000 | 4,710,250 | 1,101,000 | — | 180,000 | 8,929,287 |
| 1988 | — | 4,031,250 | 1,201,000 | — | 180,000 | 5,416,423 |
| 1987 | — | — | — | — | — | 7,957 |
▎ 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.