Toxics Release Inventory
2007 Arizona Report
U.S. EPA Region 9: California, Arizona, Nevada, Hawaii, the Pacific Islands, and Tribal Nations
Arizona's Releases
In Arizona, 297 facilities reported a total of 88
million pounds of toxic chemical releases. Arizona's
total reported on-site and off-site releases de-
creased 9% (8.6 million pounds), when compared
to 2006 data. Large decreases in reported on-site
land releases and off-site transfers caused the
decrease in 2007.
Industry Breakdown
Total Releases for Reporting Years 2005 - 2007
Year
2005
2006
2007
Air
4,335,527
4,562,587
3,971,674
Water
681
3,726
4,364
On-Site Land
58,559,307
89,672,871
82,284,258
Underground
Injection
10.0
10.0
10.0
Off-Site
1,064,544
2,406,640
1,775,932
Facilities with Largest Chemical Releases
The top ten facilities in Arizona for total on-site
and off-site releases of all chemicals are:
1
2
3
4
5
6
7
8
9
10
Facility Name
FREEPORT-MCMORAN MIAMI, INC
ASARCO LLC RAY COMPLEX/HAYDEN
SMELTER & CONCENTRATOR
FREEPORT-MCMORAN MORENCI, INC
ASARCO LLC MISSION COMPLEX
TUCSON ELECTRIC POWER CO
SPRINGERVILLE GENERATION
STATION
FREEPORT-MCMORAN BAGDAD INC
FREEPORT-MCMORAN SIERRITAINC
CHOLLA POWER PLANT
CORONADOGENERATINGSTATION
ASARCO LLC RAY MINE OPERATIONS
City
CLAYPOOL
HAYDEN
MORENCI
SAHUARITA
SPRINGERVILLE
BAGDAD
GREEN VALLEY
JOSEPH CITY
ST JOHNS
KEARNY
Total
Releases
37,167,504
21,182,975
8,096,460
4,040,432
3,553,540
2,065,004
2,029,531
1,899,675
1,133,850
1,068,253
The copper and nickel ore mining industry
accounts for 63% of Arizona's Toxic Release Inven-
tory (TRI) chemical releases, including 62% of the
releases to land.
Total Releases: Arizona Industry Sectors
100000000-
90000000-
80000000-
70000000-
60000000-
50000000-
40000000-
30000000-
20000000-
10000000-
0-
2005
2006
D Metal Ore Mining • Nonferrous Metal
D Electric Pcwer Generation n Newsprint Mills
• Alumina and Aluminum Production and Processing DAII Other
Total Releases:
Metal Ore Mining Facilities Compared with All Other Industries
[pTotal Releases at Metal Ore Mining Facilities BTotal Releases for All Other Industries in AZ |
Releases to the Environment
Land: On-site land releases decreased by 7.4
million pounds (8%). Freeport-McMoran Miami,
Inc., a copper and nickel ore mining facility in
Claypool, reported a decrease in land releases of
21 million pounds, (37%).
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Air: Air releases decreased by 13%, a reduction of
591 thousand pounds. Head/Penn RacquetSports,
a sporting and athletic goods manufacturer in
Phoenix, reported a 100% decrease in air releases
at a reduction of 224 thousand pounds.
Water: Water releases increased 638 pounds,
(17%) from 2006. Silver Bell Mining, LLC, a copper
and nickel ore mining facility in Marana, led the
water releases, a total release of 2,877 pounds.
Underground Injection: All of Arizona's releases
(10 pounds) were reported by Pimalco, an alumi-
num product manufacturer in Chandler. There was
no change from 2006.
Off-Site Releases (Transfers and Disposal):
Off-site transfers decreased by 631 thousand
pounds. Freeport-McMoran Miami, Inc. reported a
275 thousand pound decrease in off-site transfers,
a reduction of 22%.
Total Releases: Reporting Year 2007
Off-Site, 2%
Underground
Inject! on, 0%
Water, 0%
PBT Chemical Releases
Re/eases of Persistent, Bioaccumulative and Toxic
(PBT) chemicals are in pounds. Dioxin and dioxin-
like compounds data are in grams, not in Toxicity
Equivalence (TEQ).
In Arizona, 19.1 million pounds of total on-site and
off-site releases of PBT chemicals were reported.
This is an increase of 22% (3.5 million pounds)from
the previous reporting year. The increase in lead
and lead compounds releases drove the overall
increase of PBT releases.
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.
Chemical
LEADS LEAD COMPOUNDS
POLYCH LORI MATED
BIPHENYLS
MERCURY & MERCURY
COMPOUNDS
POLYCYCLICAROMATIC
COMPOUNDS
BENZO(G,H,I)PERYLENE
CHLORDANE
DIOXIN AND DIOXIN-LIKE
COMPOUNDS
Total On-Site and Off -Site
Releases
2006
15,544,229
71,266
8,789
543
.587
1
14
2007
18,971,650
63,840
47,433
253
.673
0
9
Percent
Change
22%
-10%
440%
-53%
15%
-100%
-36%
Lead and Lead Compounds Releases
Approximately 19 million pounds of total lead
releases were reported. The copper ore and nickel
ore mining industry released the largest amounts
of reported lead, releasing 17.1 million pounds.
Ninety-nine percent of the lead reported was re-
leased to land (approximately 18.8 million pounds).
There was a 54% decrease in off-site transfers, a
reduction of 152 thousand pounds from 2006.
Freeport-McMoran Miami Inc. in Claypool reported
a reduction of almost 79 thousand pounds in off-
site transfers, a 99.9% decrease from 2006.
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Mercury and Mercury Compounds
Total releases for mercury have increased 440% from
2006 data. This was driven by Freeport-McMoran
Morenci Inc., a copper and nickel mining facility
located in Morenci, reporting42 thousand pounds
of mercury releases.
On-Site land releases of mercury have increased
536%, approximately 38 thousand pounds com-
pared to 2006. Freeport-McMoran Morenci Inc.
released 99% of its reported releases to land.
There was a reported 27% increase in mercury air
releases, a 420 pound increase from 2006. The
largest release of 609 pounds occurred at the Salt
River Project Navajo Generating Station in Page.
The majority of mercury air releases came from the
fossil fuel electric power generating industry; which
released 94% or 1,840 pounds.
Polychlorinated Biphenyls (RGBs) and
Polycyclic Aromatic Compounds (PACs)
Earth Protection Services Inc., a materials recovery
facility in Phoenix, reported 99% of the total (63
thousand pounds) PCB releases. Total releases of
PACs decreased 53%, a reduction of 290 pounds.
The reported decrease in PACs releases was driven
by a 77% (278 pounds) reduction from 2006 by
Tucson Electric Power Co. in Springerville.
All Other
1%
Total PBT Releases
Facilities with Largest PBT Releases
The top ten facilities in Arizona for total on-site and
off-site releases of PBT chemicals are:
1
2
3
4
5
6
7
8
9
10
Facility Name
FREEPORT-MCMORAN
MORENCI INC
FREEPORT-MCMORAN
MIAMI INC
ASARCOLLC MISSION
COMPLEX
ASARCO LLC RAY COMPLEX/HAYDEN
SMELTER & CONCENTRATOR
FREEPORT-MCMORAN
SIERRITAINC
ASARCO LLC RAY
MINEOPERATIONS
BMP COPPER INC
PINTO VALLEY OPERATION
FREEPORT-MCMORAN
BAGDAD
EARTH PROTECTION
SERVICES INC
TUCSON ELECTRIC POWER CO
SPRINGERVILLE GENERATION STATION
City
MORENCI
CLAYPOOL
SAHUARITA
HAYDEN
GREEN VALLEY
KEARNY
MIAMI
BAGDAD
PHOENIX
SPRINGERVILLE
Total
Releases
5,343,333
4,708,839
3,386,245
1,576,903
1,201,985
1,056,725
802,273
632,484
63,200
57,133
LEAD & LEAD
COMPOUNDS
99%
]AII Other DLEAD & LEAD COMPOUNDS
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