^eDsa% Toxics Release Inventory 2007 Nevada Report *1. PRCtf*" U.S. EPA Region 9: California, Arizona, Nevada, Hawaii, the Pacific Islands, and Tribal Nations Nevada's Releases In Nevada, 133 facilities reported a total of 222 million pounds of toxic chemical releases to EPA's Toxic Release Inventory (TRI) for 2007. Nevada's total reported on-site and off-site releases increased 2.1% or 4.5 million pounds, when compared to 2006 data. However, the three-year comparison shows an overall decrease in releases reported for Nevada, driven by a decrease in land releases. Total Releases for Reporting Years 2005 - 2007 Year Air Water On-Site Land Underg round Injection Off-Site 2005 1,963,910 110,556 321,817,294 6 1,331,240 2006 1,561,778 191,653 214,170,699 4 1,430,673 2007 1,439,784 144 217,547,857 0 2,847,441 Industry Breakdown Metal mining facilities account for 96% of Nevada's Toxic Release Inventory (TRI) chemical releases, including 98% of the releases to land. Miningland releases and off-site disposal drove Nevada's 4.5 million pound increase. Total Releases: Nevada Industry Sectors 2005 2007 ~ Metal Ore Mining ~ Electric Power Generation ¦ Nonferrous Metal ~ All Other ~ Hazardous Waste Treatment ~ Basic Chemical Manufacturing ~ Forging & Stamping Facilities with Largest Chemical Releases Gold miningfacilities accounted for nine of the top 10 total reported releases in 2007. US Ecology Inc., a hazardous waste transfer reported the eighth highest releases. Facility Name City Total Releases 1 Barrick Goldstrike Mines Inc. Elko 47,930,024 2 Newmont Mining Corp- Twin Creeks Mine Golconda 46,863,508 3 Ruby Hill Mine Eureka 33,053,693 4 Newmont Mining Corp- Carlin South Area Carlin 27,617,289 5 Newmont Mining Corp- Lone Tree Mine Valmy 16,624,201 6 Robinson Nevada Mining Co Ruth 14,796,794 7 Newmont Mining Corp- Copper Canyon Facility Battle Mountain 11,953,099 8 US Ecology Nevada Inc. Beatty 3,437,368 9 Cortez Gold Mines Crescent Valley 3,059,160 10 Smoky Valley Common Operation Round Mountain 2,440,231 Releases to the Environment Land: Overall on-site land releases increased 3.4 million pounds (1.6%) from 2006. Gold mines re- ported the largest increases and decreases in land releases. Largest Increases: Ruby Hill Mine reported a 32.8 million pound increase, up from 242 thousand pounds. Robinson Nevada and Bald Mountain Mines reported increases of 3.9 million and 1.8 million respectively. Largest Decreases: Newmont Mining Corporation (Newmont)-Twin Creeks Mine, 10 million pounds. Newmont-Lone Tree and Newmont-Copper Canyon mines reported decreases of 8.0 million and 5.9 million pounds, respectively. Air: Air releases decreased 7.8% (122 thousand pounds) from 2006 to 2007. RR Donnelly, a com- mercial gravure printingfacility in Reno, drove the air release numbers with a 118 thousand pound ------- (23.6%) decrease. The largest increase in air releases was reported by Newmont-Carlin South Area gold mine, a 32 thousand pound (51.2%) increase from 2006. Water: Reported water releases decreased 192 thousand pounds from 2006, a 99.9% change. The decrease was due almost entirely to one gold mine, Newmont-Lone Tree Mine, which reported a 191 thousand pound decrease. Underground Injection: No facilities reported underground injection releases in 2007, down from 4 pounds in 2006. Off-Site Releases (Transfers and Disposal): Nevada's off-site releases nearly doubled in 2007, an increase of 1.4 million pounds. The largest increase was reported by 21st Century Environ- mental Management, Inc., a hazardous waste treatment and disposal facility, at 1.2 million pounds. Chemical manufacturer Pioneer Americas LLC reported a 100% decrease in off-site releases, from 27 thousand pounds in 2006 to zero pounds in 2007. 2007 Nevada Releases to Environment Underground 0% Air 1% PBT Chemical Releases Releases of Persistent, Bioaccumulative and Toxic (PBT) chemicals are in pounds. Dioxin and dioxin- like compounds data are in grams not in Toxicity Equivalence (TEQ). Nevada facilities reported 61 million pounds of total on-site and off-site releases of PBT chemicals, an increase of 1.7 million pounds (2.9%) from 2006. Robinson Nevada Mining was the top releaser of PBTs in 2007, reporting 14.4 million pounds re- leased; an increase of 3.9 million (37%). Ruby Hill Mine reported the largest increase of PBT releases from 2006 to 2007, from 242 thousand to 7.8 million pounds. Newmont-Copper Canyon Facility reported the largest decrease of PBT releases, from 17 to 11 million pounds. In determining release quantities for metal com- pounds, facilities only consider the primary metal portion of the compound. For instance, a facility reporting lead compounds only reports the lead portion of the lead compounds released. The PBT chemicals are ranked by 2007 total releases. Total On-Site and Off-Site Percent Change Chemical Releases 2006 2007 Lead & Lead Compounds 54,969,607 54,950,602 -0.03% Mercury & Mercury Compounds 4,325,134 6,095,127 41% Chlordane 4,885 3,581 -27% Trifluralin 2,841 2,023 -29% Polychlorinated Biphenyls 682 584 -14% Polycyclic Aromatic Compounds 43 64 50% Dioxin And Dioxin-like Compounds (grams) 6.38 6.26 -2% Benzo(G,H,l)Perylene 0.5 0.4 -23% Hexachlorobenzene 703 0.00 -100% Heptachlor 22 — -100% Toxaphene 0.01 - -100% Lead and Lead Compounds Releases Almost 55 million pounds of lead and lead com- pound releases were reported in 2007. The metal mining industry accounted for 99% of the total releases. Largest Increases: Ruby Hill Mine (7.1 million pounds), Robinson Nevada Mining (3.9 million pounds), Bald Mountain Mine (1.8 million pounds), and Newmont-Carlin South Area (1.3 million pounds). Largest Decreases: Newmont-Copper Canyon Facility (5.9 million pounds), Newmont-Twin Creeks Mine (3.9 million pounds), and Coeur Rochester (3.6 million pounds). ------- Mercury and Mercury Compounds Total releases for mercury and mercury com- pounds increased 41% from 2006, from 4.3 to 6.1 million pounds. This increase was largely a result of increases to land releases by mining facilities. Land: Land releases, primarily from metal mining facilities, accountfor99%oftotal mercury releases in Nevada. Largest Increases: Newmont-Carlin North Area (693 thousand pounds), Newmont-Twin Creeks Mine (480 thousand pounds), Ruby Hill Mine (395 thousand pounds), and Newmont-Carlin South Area (205 thousand pounds). Largest Decreases: Newmont-Lone Tree Mine (50 thou- sand pounds). Air: The top mercury releases to air were reported by Barrick Goldstrike Mines, Inc (740 pounds); Newmont-Twin Creeks (659 pounds); Newmont- Lone Tree Mine (630 pounds), Newmont-Carlin South Area (545 pounds); Cortez Gold Mines (264 pounds); and Newmont-Carlin North Area (166 pounds). Largest Air Increases: Newmont-Carlin South Area (196 pounds); Newmont-Carlin North Area (146 pounds), Barrick Goldstrike Mines, Inc. (115 pounds) and Cortez Goldmines (103 pounds). Largest Air Decreases: Marigold Mining Co (903 pounds) and Kennecott Rawhide Mining Co. (290 pounds) Polychlorinated Biphenyls (PCBs) and Polycyclic Aromatic Compounds (PACs) Reported releases of PCBs decreased 14.4%, from 682 to 584 pounds. U.S. Ecology Nevada, Inc., a hazardous waste facility, was the only facility to report PCB releases, and is responsible for the 98 pound reduction. PAC releases increased 50% (21 pounds). Asphalt plant Semmaterials, L.P.-Las Vegas reported a 42 pound increase. Total PBT Releases Facilities with Largest PBT Releases The top ten facilities in Nevada for total on-site and off-site releases of PBT chemicals are: Facility Name City Total Releases 1 Robinson Nevada Mining Co Ruth 14,392,044 2 Newmont Mining Corp- Copper Canyon Facility Battle Mountain 11,017,408 3 Barrick Goldstrike Mines Inc. Elko 7,908,304 4 Ruby Hill Mine Eureka 7,750,533 5 Newmont Mining Corp- Carlin South Area Carlin 5,295,949 6 Cortez Gold Mines Crescent Valley 2,872,380 7 Newmont Mining Corp- Twin Creeks Mine Golconda 2,451,043 8 Bald Mountain Mine Elko 2,184,028 9 Coeur Rochester Inc. (silver mining) Lovelock 2,012,499 10 Smoky Valley Common Operation (gold mining) Round Mountain 1,811,309 ~ Lead and Lead Comp ¦ Mercury and Mercury Comp ~ Other Mercury and Mercury ComP Other 10% 0% Lead and Lead Comp 90% ------- |