www.epa.gov/region10/tri
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2010 Toxics Release Inventory
Region 10 Report
December 2011
Releases in Region 10
In 2010, 702 facilities in Alaska, Idaho, Oregon and
Washington reported a total of 941 million pounds of toxic
chemical releases, an increase of 20%, or 154 million
pounds, from 2009.
What is a Release?
A TRI "release" is defined as the amount of a toxic
chemical released on-site (to air, water, underground
injection, landfills, and other land disposal), and the
amount transferred off-site for disposal. All releases values
in this report are listed in pounds released per year.
Total Releases Reported in Region 10 from 2006 to 2010
Year
No. of
Facilities
Reporting
Air
Water
Other
On-site
Off-Site
2006
812
27,259,206
8,296,487
752,415,092
12,999,998
2007
808
24,601,225
7,289,102
681,216,832
13,479,570
2008
771
20,758,092
6,904,931
660,148,366
11,756,359
2009
731
16,955,974
6,082,018
759,382,489
10,095,688
2010
702
19,027,905
5,770,740
912,267,725
9,189,119
o
Q.
Total Releases Reported to TRI in Region 10
1,000,000,000
800,000,000
600,000,000
400,000,000
200,000,000
0
2006
2007
2008
2009
2010
Top 10 Releasing Facilities - All Chemicals
Top Ten Industries

Facility Name
Location
Total
Releases
1
RED DOG OPERATIONS
KOTZEBUE, AK
777,395,672
2
HECLA GREENS CREEK
MINING CO
JUNEAU, AK
47,185,468
3
HECLA LTD LUCKY FRIDAY MIN
EUNIT
MULLAN, ID
19,786,973
4
P4 PRODUCTION LLC
SODA SPRINGS,
ID
16,157,407
5
US ECOLOGY IDAHO INC
GRAND VIEW, ID
8,559,037
6
CHEMICAL WASTE
MANAGEMENT
ARLINGTON, OR
8,290,413
7
POGO MINE
DELTA
JUNCTION, AK
7,770,876
8
US SILVER - IDAHO INC
WALLACE, ID
6,519,554
9
CASCADE STEEL ROLLING
MILLS INC
MCMINNVILLE,
OR
4,308,484
10
US DOE HANFORD
RICHLAND, WA
4,214,932

Industry
Total
Releases
Percent
of Total
Releases
1
METAL MINING
864,526,796
92.3%
2
CHEMICAL MANUFACTURING
21,151,447
2.3%
3
HAZARDOUS WASTE / SOLVENT
RECOVERY
16,849,838
1.8%
4
PAPER MANUFACTURING
11,555,660
1.2%
5
PRIMARY METAL MANUFACTURING
7,696,682
0.8%
6
FOOD/ BEVERAGES/TOBACCO
7,598,782
0.8%
7
ELECTRIC UTILITIES
4,279,495
0.5%
8
PETROLEUM AND COAL PRODUCTS
MANUFACTURING
1,013,646
0.1%
9
FABRICATED METAL PRODUCT
MANUFACTURING
763,402
0.1%
10
TRANSPORTATION EQUIPMENT
MANUFACTURING
758,555
0.1%

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Top Ten Released Chemicals

Chemical
Air
Water
Other On-site
Off-site
Total Releases
Percent of Total
Releases
1
ZINC COMPOUNDS
158,245
20,202
489,116,840
462,873
489,758,160
52.1%
2
LEAD COMPOUNDS
10,750
332
342,922,342
7,083
342,940,507
36.5%
3
MANGANESE COMPOUNDS
70,478
373,158
20,703,983
856,658
22,004,277
2.3%
4
VANADIUM COMPOUNDS
6,320
1,350
10,834,255
2
10,841,928
1.2%
5
LEAD
2,008
813
8,067,766
330,197
8,400,784
0.9%
6
ARSENIC COMPOUNDS
772
12
7,500,000
0
7,500,784
0.8%
7
NITRATE COMPOUNDS
922
3,853,026
2,907,618
49,308
6,810,874
0.7%
8
METHANOL
5,420,148
323,574
3,688
4,858
5,752,268
0.6%
9
ZINC
486
0
4,839,958
0
4,840,444
0.5%
10
BARIUM COMPOUNDS
31,845
3,937
4,376,213
331,409
4,743,405
0.5%
Persistent, Bioaccumulative, and Toxic (PBT) Chemicals
PBT chemicals are toxic chemicals that persist in the environment and bioaccumulate in food chains, posing risks to
human health and ecosystems. PBT chemicals are a subset of the TRI-listed chemicals that have stricter reporting
requirements. In Region 10, 352 million pounds of total releases of PBT chemicals were reported. This is an increase of
132 million pounds, or 60%, from 2009. Lead and lead compounds topped the list in 2010. The PBT chemicals in the table
are listed in descending order of pounds released in 2010.
Total PBT Chemical Releases - Comparison of Top Ten Facilities - PBT Chemicals
2009 to 2010
Chemical
2009 PBT
Releases
2010 PBT
Releases
Percent
Change
LEAD COMPOUNDS
213,621,973
343,180,287
60.6%
LEAD
6,146,481
8,435,207
37.2%
POLYCYCLIC AROMATIC
COMPOUNDS
68,058
240,428
253.3%
POLYCHLORINATED
BIPHENYLS
213,448
195,857
-8.2%
MERCURY COMPOUNDS
116,175
131,064
12.8%
BENZO(G,H,l)PERYLENE
5,657
6,318
11.7%
MERCURY
3,788
2,198
-42.0%
TETRABROMOBISPHENOL A
11
2,025
18307.3%
TOXAPHENE
2,145
1,903
-11.3%
CHLORDANE
2,191
1,903
-13.1%
HEXACHLOROBENZENE
2,154
1,900
-11.8%
HEXACHLOROBENZENE
2,142
1,900
-11.3%
ALDRIN
2,140
1,900
-11.2%
HEPTACHLOR
2,142
1,899
-11.3%
METHOXYCHLOR
2,129
1,893
-11.1%
PENDIMETHALIN
23,849
612
-97.4%
DIOXIN AND DIOXIN-LIKE
COMPOUNDS
1.9222
1.9362
0.7%
Total
220,214,484
352,207,296
59.9%

Facility Name
City
Total PBT
Releases
1
RED DOG OPERATIONS
KOTZEBUE, AK
319,687,299
2
HECLAGREENSCREEK
MINING CO
JUNEAU, AK
15,608,478
3
US DOE HANFORD SITE
RICHLAND, WA
4,195,680
4
HECLALTD LUCKY FRIDAY
MINE
MULAN, ID
3,834,931
5
CHEMICAL WASTE
MANAGEMENT OF THE
NORTHWEST INC
ARLINGTON, OR
2,844,955
6
THOMPSON CREEK MINING
CO
CLAYTON, ID
2,454,127
7
US ECOLOGY IDAHO INC
GRANDVIEW, ID
1,173,209
8
FORT KNOX MINE
FAIRBANKS, AK
1,105,297
9
US DOE IDAHO NATIONAL
LABORATORY SITE
SCOVILL, ID
793,192
10
CASCADE STEEL ROLLING
MILLS INC
MCMINNVILLE, OR
226,328

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