Water Quality Assurance Revolving Fund
Report
A.R.S. §49-282.G

Under state and federal authorities, ADEQ’s Superfund Programs Section identifies,
assesses and cleans up soil and groundwater contaminated with hazardous substances.
The program directs remediation activities using state and federal funds and oversees
privately-funded cleanup efforts. Responsible parties are identified and notified, and
legal and technical evidence is gathered for recovery of ADEQ’s costs and for enforcement of cleanup requirements. The Arizona Attorney General’s Office, the Arizona
Department of Health Services, the Arizona Department of Water Resources and
political subdivisions receive funding to assist ADEQ with its remediation efforts.
The Superfund Programs Section administers the Water Quality Assurance Revolving
Fund (WQARF, pronounced wharf) Program, which was created under the Arizona
Environmental Quality Act of 1986, in support of cleanup efforts in the state. The
fund is dependent upon direct transfer of funds from legislative appropriations,
corporate income tax, cost recovery and special fees.
Beginning in April 1998, the WQARF Registry was created to replace the WQARF
Priority List, as required by A.R.S. § 49-287.01. Sites are added to the Registry
through a listing process that includes scoring, notifying owners and operators within
the proposed site, and providing the public with a 30-day comment period.
At the end of FY 2002, there were 33 sites on the WQARF Registry. In addition to
those sites, the program oversees nine projects governed and funded by the federal
Comprehensive Environmental Response, Compensation and Liability Act
(CERCLA) of 1980, commonly known as Superfund. Sites posing a significant threat
to human health and the environment may be placed on the National Priorities List
(NPL). Three of these sites are under Department of Defense jurisdiction. The
program also manages 13 non-NPL Department of Defense sites.
The WQARF Program provides fiscal support to the Voluntary Remediation Program,
which presently manages cleanup activities at more than 60 sites. This program
provides an opportunity for property owners to remediate contamination and receive
review and closure from ADEQ before a site is listed on the WQARF Registry.
In conjunction with the WQARF Advisory Board and other interested stakeholders,
the Superfund Programs Section has devoted significant resources to the development
of numerous rules, policies and guidance documents to address WQARF site investigation and cleanup processes.
ADEQ's FY '02 WQARF Report, Page 1

Annual Program Performance Measures
§ 49-282.G.1: Accomplishments from expenditures of the fund in terms of
reduction of contamination in the environment and actions taken to determine
the nature and extent of contamination
Table 1: WQARF Sites Remedial Activities Completed in FY 2002
Sites added to the WQARF Registry
Billions of gallons of water treated
Pounds of volatile organic compounds removed
Millions of pounds of metals removed
Tons of contaminated soil removed
Significant early response actions or final cleanup actions conducted

0
2.6
46,753
5.3
8,790
3

Table 2. WQARF Enforcement and Administrative Activities Completed in FY
2002
Access agreements signed

35

Consent decrees/consent orders completed

4

Prospective purchaser agreements completed

4

Potentially responsible party searches underway

27

Applicable or relevant and appropriate requirements determinations
completed

1

Table 3. WQARF Community Involvement Activities Completed in FY 2002
Community advisory boards/groups established

1

Fact sheets prepared

28

Public meetings and open houses conducted

79

Table 4. Federal Sites Remedial Activities Completed in FY 2002
Billions of gallons of water treated

7.76

Pounds of volatile organic compounds removed

25,197

Tons of contaminated soil removed

43.61

ADEQ's FY '02 WQARF Report, Page 2

Table 5. Federal Community Involvement Activities Completed in FY 2002
Factsheets prepared

2

Public meetings and open houses conducted

14

§ 49-282.G.2: The status of all sites on the Registry, including the site locations,
the basis for establishing site boundaries and whether remedial actions taken to
date would support a modification of the boundaries of the site
The status of all sites on the Registry begins on Page 4. The site locations are denoted
on the maps included at the end of this report. Site boundaries are determined by
using existing site data to determine the boundary of contamination at the limit of the
appropriate aquifer water quality standard or residential soil remediation level. During
FY 2002, no Registry site boundaries were modified.
§ 49-282.G.3: The number of settlements made with responsible parties and the
terms of each settlement
Number settled: 1
§ 49-282.G.4: Number and types of settlements under 49-292. (general), 49292.01 (qualified business) and 49-292.02 (financial hardship), as of the close of
FY 2002
1.
2.
3.
4.

5.

Number of settlements and amounts:
Number of settlements: 1 – pursuant to A.R.S. 49-292
Amount: $450,000
Number of applications submitted in each category:
Qualified business: 1
Financial hardship: 0
Number of applications denied under each section:
Qualified business: 0
Financial hardship: 0
The number of settlements pursuant to 49-292.01 and the total amount of the
settlements:
Number of settlements: 1
Amount: $21,846
The number of settlements pursuant to 49-292.02 and the total amount of the
settlements:
Number of settlements: 0

ADEQ's FY '02 WQARF Report, Page 3

6.

The number of persons who met the definition of qualified business under section
49-292.01 but who settled pursuant to 49-292.02:
Number of applicants and settlements: 0

WQARF Sites
These are the sites that ADEQ has determined will be actively addressed by the
WQARF Program. The following 33 sites were on the WQARF Registry as of the end
of FY 2002. Other sites will continue to be added to the Registry as the process
described in § A.R.S. 49-287.01 is completed.
7th Street and Arizona Avenue
Boundaries: The site is located in downtown Tucson, approximately one-third
mile north of Broadway Boulevard and approximately three-fourths mile east of
Interstate 10. The site boundary is a northwest-trending oval extending approximately 1,200 feet from the former Oliver’s Cleaners facility at 300 E. Seventh St.
(southeast corner of Seventh Street and Fifth Avenue) to approximately 150 feet
north of Sixth Street and approximately 100 feet east of Seventh Avenue. The
site was placed on the Registry in 2000 with a score of 40 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE), trichloroethene (TCE) and cis-1,2-dichloroethene (cis1,2-DCE) at concentrations exceeding the Arizona aquifer water quality standards. Contaminants of concern at the site may change as new data become
available.
16th Street and Camelback
Boundaries: The 16th Street and Camelback site is bounded approximately by
Medlock Drive to the north, 17th Street to the east, Highland Avenue to the
south and 14th Place to the west. The site was placed on the Registry in April
1999 with a score of 23 out of a possible 120.
Contaminants: The site is divided into a northern and a southern portion. The
current contaminants of concern in groundwater include tetrachloroethene
(PCE) at the northern portion of the site and 1,2-dichloropropane (1,2-DCP)
and 1,2-dichloroethane (1,2-DCA) at the southern portion of the site. Contaminants of concern at the site may change as new data become available.

ADEQ's FY '02 WQARF Report, Page 4

20th Street and Factor Avenue
Boundaries: The site is located approximately one-half mile south of 16th Street
(U.S. Highway 95) and approximately three-quarters of a mile east of Fourth
Avenue (Interstate 8 Business Loop) in Yuma. The site boundary is a northwesttrending oval extending approximately 1,000 feet from the Houston International
facility at 655 E. 20th St. on the southeast to 19th Street and Rail Avenue to the
northwest. The site was placed on the Registry in 2000 with a score of 31 out of a
possible 120.
Contaminants: The current contaminants of concern at the site include
tetrachloroethene (PCE) and cyanide. Contaminants of concern at the site may
change as new data become available.
Broadway – Pantano
Boundaries: The site is bounded approximately by Speedway Boulevard to the
north, Pantano Wash to the east, Broadway Boulevard to the south, and Sahuaro
Avenue (one half mile to the west of Wilmot Road) to the west. The site consists
of the closed municipal Broadway North Landfill and the associated groundwater
contamination extending out from underneath the landfill. The site was placed
on the Registry in 1998 with a score of 48 out of a possible 120. The site was rescored for the June 2001 Registry with an eligibility and evaluation score of 57.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE), trichloroethene (TCE), vinyl chloride, methylene
chloride and cis-1,2-dichloroethene (cis-1,2-DCE) at concentrations exceeding
drinking water standards. PCE and TCE are volatile solvents commonly used in
dry cleaning and metal cleaning operations, and vinyl chloride is often an end
product when PCE and TCE chemically decompose in the environment. Contaminants of concern at the site may change as new data become available.
Central and Camelback
Boundaries: The site is bounded approximately by Missouri Avenue to the north,
a line 100 feet east of Central Avenue to the east, Pierson Street to the south and
by a line 600 feet west of Central Avenue to the west. The southwest corner
source area portion of the site was placed on the Registry in January 1999 with an
eligibility and evaluation score of 31 out of a possible 120. The site was re-scored
for the June 2001 Registry with an eligibility and evaluation score of 32 and
includes the entire Central and Camelback WQARF site.
Contaminants: The current contaminants of concern at the site include
tetrachloroethene (PCE), trichloroethene (TCE), cis-1,2-dichloroethene (cis-1,2ADEQ's FY '02 WQARF Report, Page 5

DCE) and vinyl chloride. Contaminants of concern at the site may change as new
data become available.
Other contaminants at the site include benzene, toluene, ethylbenzene, total
xylenes, methyl tertiary butyl ether (MTBE) and 1,2-dichloroethane (1,2-DCA)
due to past releases from underground storage tanks in the area.
East Central Phoenix – 24th Street and Grand Canal
Boundaries: The boundaries of the site approximate a circle about 400 feet in
diameter, centered around SRP well 16E-6.8N. The actual center of the circle is
approximately 30 feet to the east of 24th Street and 10 feet to the north of the
Grand Canal. The site was placed on the Registry in May 2000 with a score of 29
out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE). Contaminants of concern at the site may change as
new data become available.
East Central Phoenix – 32nd Street and Indian School Road
Boundaries: The boundaries of the site approximate a circle about 400 feet in
diameter centered around SRP well 17E-8N. The actual center of the circle is
approximately 300 feet to the east of 32nd Street and 100 feet to the south of
Indian School Road. The site was placed on the Registry in May 2000 with a
score of 29 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE). Contaminants of concern at the site may change as
new data become available.
East Central Phoenix – 38th Street and Indian School Road
Boundaries: The site is bounded approximately by Indian School Road to the
north, 38th Street to the east, Picadilly Road to the south and 36th Street to the
west. The site was placed on the Registry in 1998 with a score of 20 out of a
possible 120. The site was re-scored for the June 2001 Registry with an eligibility
and evaluation score of 25.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE). Contamination is present in the groundwater at depths
between approximately 25 to 75 feet below the ground. Contaminants of concern
at the site may change as new data become available.

ADEQ's FY '02 WQARF Report, Page 6

East Central Phoenix – 40th Street and Indian School Road
Boundaries: The site is bounded approximately by Devonshire Avenue to the
north, 40th Street to the east, Amelia Avenue to the south and 38th Street to
the west. The site was placed on the Registry in 1998 with a score of 20 out of a
possible 120. The site was re-scored for the June 2001 Registry with an eligibility
and evaluation score of 25.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE) and trichloroethene (TCE). Contamination is present
in the groundwater at depths between approximately 20 to 35 feet below the
ground. Contaminants of concern at the site may change as new data become
available.
East Central Phoenix – 40th Street and Osborn Road
Boundaries: The boundaries of the site approximate a circle about 800 feet in
diameter centered around SRP well 17.9E-7.5N. The actual center of the circle is
approximately 400 feet to the west of 40th Street and 50 feet to the south of
Osborn Road. The site was placed on the Registry in May 2000 with a score of 30
out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE). Contaminants of concern at the site may change as
new data become available.
East Central Phoenix – 48th Street and Indian School Road
Boundaries: The site is bounded approximately by a line 450 feet north of Indian
School Road to the north, a line 300 feet west of 48th Street to the east, a line
150 feet south of Indian School Road to the south and 45th Place to the west.
The site was placed on the Registry in April 1999 with a score of 27 out of a
possible 120. The site was re-scored for the June 2001 Registry with an eligibility
and evaluation score of 32.
Contaminants: The current contaminant of concern in groundwater is tetrachloroethene (PCE). The plume is small, appears to be stable and not moving.
Contaminants of concern at the site may change as new data become available.
East Washington Fluff
Boundaries: The site is bounded approximately by Buckeye Road to the north,
5th Street to the east, Pima Street to the south and a set of railroad tracks to the
west. The site was placed on the Registry in June 1999 with a score of 22 out of a
ADEQ's FY '02 WQARF Report, Page 7

possible 120. The site was re-scored for the June 2001 Registry with an eligibility
and evaluation score of 34.
Contaminants: The site is ten acres in size and contained significant quantities of
auto shredder fluff comingled with native soils. The current contaminants of
concern at the site include lead, cadmium, arsenic and polychlorinated biphenyls
(PCBs), a substance historically used as a cooling oil in electric components.
Contaminants of concern at the site may change as new data become available.
El Camino del Cerro
Boundaries: The site is bounded approximately by the Rillito River to the north,
Shannon Road to the east, El Camino del Cerro Road to the south and the Santa
Cruz River to the west. The closed El Camino del Cerro Landfill occupies
approximately 20 acres of land in the southwest portion of the site area, north of
El Camino del Cerro Road between the Santa Cruz River and I-10. The site was
placed on the Registry in 1998 with a score of 71 out of a possible 120.
Contaminants: The current contaminants of concern at the site include
tetrachloroethene (PCE), trichloroethene (TCE), 1,1-dichloroethene (1,1-DCE),
vinyl chloride and benzene. Contaminants of concern at the site may change as
new data become available.
Estes Landfill
Boundaries: The site is bounded approximately by the Salt River to the north, the
153 Expressway to the east, Magnolia Street to the south and 40th Street to the
west. Groundwater contamination from the landfill extends in an oval shape for
approximately one-half mile to the west and north of the landfill. The site was
placed on the Registry in 1998 with a score of 45 out of a possible 120. The site
was re-scored for the June 2001 Registry with an eligibility and evaluation score
of 50.
Contaminants: The current contaminants of concern in soil include arsenic, lead
and thallium. The current contaminants of concern in groundwater include vinyl
chloride, cis-1,2-dichloroethene (cis-1,2-DCE), trichloroethene (TCE), benzene,
bis (2-ethylhexyl)phthalate, arsenic, barium, chromium, lead and manganese.
Contaminants of concern at the site may change as new data become available.
Klondyke Tailings
Boundaries: The site is located on the north bank of Aravaipa Creek, approximately 4.5 miles upstream of the Aravaipa Canyon Wilderness Area. The
boundaries of this site are irregular. The site is composed of two piles of mine
ADEQ's FY '02 WQARF Report, Page 8

tailings, the soil between and adjacent to these piles, and the area approximately
50 feet into the stream bed of Aravaipa Creek, directly adjacent to the tailings
piles. The site is bounded to the east by Klondyke Road. The site was listed on
the Registry in 1998 with a score of 69 out of a possible 120.
Contaminants: The current contaminants of concern at the site include lead,
cadmium, antimony, beryllium, copper, manganese, arsenic and zinc. Physical
evidence and testing of the groundwater and soil in the area indicate that runoff
and leaching into Aravaipa Creek from the tailings piles may be occurring, and
flooding of the creek could erode contaminated materials into the creek bed.
Contaminants of concern may change as new data become available.
Los Reales Landfill
Boundaries: The site is bounded approximately by Valencia Road to the north,
Craycroft Road to the east, approximately one-quarter mile south of Los Reales
Road to the south, and Alvernon Way to the west. Within the site boundary is
the Los Reales Landfill, an active municipal sanitary landfill located at 5300 East
Los Reales Road consisting of approximately 376 acres in southeast Tucson. The
site was placed on the Registry in 1999 with a score of 32 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
volatile organic compounds (VOCs). Several VOCs have been detected in two
downgradient monitor wells, including tetrachloroethene (PCE), trichloroethene
(TCE), trichlorofluoromethane, dichlorofluoromethane, chloroethane, 1,1dichloroethene (1,1-DCE), methylene chloride and 1,1-dichloroethane (1,1DCA). PCE and TCE concentrations have exceeded the Aquifer Water Quality
Standards. Upgradient wells have not had detectable levels of VOCs. Contaminants of concern at the site may change as new data become available.
Miracle Mile
Boundaries: The site is bounded approximately by Roger Road to the north,
Flowing Wells Road to the east, Prince Road to the south and Bottletree Lane to
the west. The site was placed on the Registry in 1998 with a score of 62 out of a
possible 120.
Contaminants: The current contaminants of concern in groundwater include at
least seven different volatile organic compounds (VOCs), several of which have
been detected above the EPA maximum contaminant levels. The predominant
contaminants of concern are trichloroethene (TCE) and chromium. Contaminants of concern at the site may change as new data become available.

ADEQ's FY '02 WQARF Report, Page 9

Park – Euclid
Boundaries: The site is bounded approximately by Broadway Boulevard to the
north, Santa Rita Avenue to the east, 14th Street to the south and Euclid
Avenue to the west. The site includes facilities located at both 299 and 301 S.
Park, where several companies have conducted laundry and dry-cleaning operations since the late 1930s. The site was placed on the Registry in April 1999 with
a score of 51 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
diesel product and volatile organic compounds (VOCs), including
tetrachloroethene (PCE), trichloroethene (TCE) and 1,2 dichloroethene (1,2DCE). Both PCE and TCE are present in concentrations above aquifer water
quality standards. Contaminants of concern at the site may change as new data
become available.
Payson PCE
Boundaries: The site is bounded approximately by Frontier Street to the north,
Beeline Highway (State Route 87) to the east, Aero Drive to the south and
McLane Road to the west. The site was placed on the Registry in 1998 with a
score of 63 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE) and methyl tertiary butyl ether (MTBE). Contaminants
of concern at the site may change as new data become available.
Pinal Creek
Boundaries: The site is located in the Globe-Miami area and has irregular
boundaries. Within the southern portion of the site, the boundary follows and
includes the entire mine sites of the Phelps Dodge Miami, Inc. (Phelps Dodge
Miami Mine, formerly known as the Inspiration Mine) and BHP Copper, Inc.
(the Miami Mine, the Copper Cities Mine, the Old Dominion Mine and related
properties, and the Solitude Tailings). The southern boundary follows the
southern margin of the flood plain of Bloody Tanks Wash through the town of
Miami and the community of Claypool, then turns south to include the BHP
Solitude Tailings. The boundary follows the eastern margin of the flood plain of
Russell Gulch and Miami Wash northward to the confluence with Pinal Creek.
The boundary parallels both sides of upper Pinal Creek to the city of Globe,
including the Old Dominion Mine and related mine properties in the Globe Hills.
North of the confluence of Miami Wash and Pinal Creek, the boundary parallels
Pinal Creek on both sides including the flood plain of Pinal Creek plus a margin
approximately 1,000 feet wide surrounding the flood plain as far north as InspiraADEQ's FY '02 WQARF Report, Page 10

tion Dam. North of Inspiration Dam, the boundary follows the flood plain of
Pinal Creek. The northern boundary terminates at the Salt River. The site was
placed on the Registry in 1998 with a score of 97 out of a possible 120.
Contaminants: The current contaminants of concern at the site include aluminum, arsenic, beryllium, cadmium, chromium, copper, cobalt, fluoride, iron, lead,
manganese, mercury, nickel, radium, sulfate, uranium, zinc and sulfuric acid.
Contaminants of concern at the site may change as new data become available.
Shannon Road – Rillito Creek
Boundaries: The site extends approximately one quarter mile to the north and
south of Rillito Creek, and is approximately bounded by Meadowbrook Park to
the east and Peglar Wash Park to the west. The site was placed on the Registry in
April 1999 with a score of 53 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE) and trichloroethene (TCE). Contaminants of concern
may change as new data become available. In addition to PCE and TCE, there
are other substances detected in the groundwater at the site below the regulatory
limit. These substances include 1,1-dichloroethane (1,1-DCA), 1,1dichloroethene (1,1-DCE), cis-1,2-dichloroethene (cis-1,1-DCE) and
dichlorodifluoromethane (Freon 12).
Silverbell Jail Annex Landfill
Boundaries: The site lies between, but is not bounded by, Silverbell Road to the
west, Sweetwater Drive to the north, Interstate 10 to the east, and Grant
Road/Ironwood Hill Drive to the south. The site was placed on the Registry in
1999 with a score of 51 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE) and trichloroethene (TCE). Other volatile organic
compounds (VOCs) routinely detected in site monitor wells include vinyl
chloride, dichlorodifluoromethane, trichlorofluoromethane, methylene chloride,
and cis-1,2- dichloroethene (cis-1,2-DCE). Contaminants of concern at the site
may change as new data become available.
South Mesa
Boundaries: The site is bounded approximately by 10th Drive to the north,
Stapley to the east, and the railroad south of Baseline to the south and west. The
site was placed on the Registry in 1998 with a score of 26 out of a possible 120.

ADEQ's FY '02 WQARF Report, Page 11

The site was re-scored for the June 2001 Registry with an eligibility and evaluation score of 31.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE), trichloroethene (TCE), chromium and nickel. Contaminants of concern at the site may change as new data become available.
Other contaminants at the site include regionally high levels of nitrates due to
past agricultural land use.
Tonto Drive and Cherry Street
Boundaries: The site is located approximately 150 feet from Colcord Road just
north of Frontier Street. The site boundary is a northwest-trending oval, extending approximately 850 feet from the intersection of Colcord Road and Frontier
Street. The site was placed on the Registry in June 2000 with a score of 45 out of
a possible 120.
Contaminants: The current contaminant of concern in groundwater is
tetrachloroethene (PCE). Contaminants of concern at the site may change as
new data become available.
Tyson Wash
Boundaries: The site is bounded approximately by the groundwater plume which
extends 300 feet to the north of Cowell Street to the north, 250 feet east of
Washington Boulevard to the east, 250 feet south of Cowell Street to the south
and 100 feet west of Oregon Avenue to the west. The known groundwater
contamination exists northwest of the intersection of State Hwy 95 and Business
Route I-10 in the town of Quartzsite. The site was added to the Registry in 1998
with a score of 46 out of a possible 120.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE) and trichloroethene (TCE). Contaminants of concern
may change as new data become available.
Vulture Mill
Boundaries: The site is located just east of North Tegner (Highways 89 and 93)
about 1 mile northwest of the center of the town of Wickenburg. The eastern
boundary of the site is approximately one-quarter mile west of the Hassayampa
River Channel. The site is on private land owned by four separate parties and
consists of a former gold-ore milling. The tailings and affected soil are found in an
area approximately 35 acres on up to five separate properties. The site was placed
on the Registry in 1998 with a score of 65 out of a possible 120.
ADEQ's FY '02 WQARF Report, Page 12

Contaminants: The current contaminants of concern at the site include lead and
arsenic. The average concentration of lead in the mill tailings exceeds the
concentration allowed on residential property (400 parts per million (ppm)) or
non-residential property (2,000 ppm). The highest concentration of lead in the
tailings is reported to be approximately 14,000 ppm. Contaminants of concern at
the site may change as new data become available. Other contaminants at the
site include iron and manganese.
West Central Phoenix – East Grand Avenue
Boundaries: The site is bounded approximately by Whitton Avenue to the north,
29th Avenue to the east, Osborn Road to the south and 30th Avenue to the
west. The site was placed on the Registry in 1998 with a score of 26 out of a
possible 120. The site was re-scored for the June 2001 Registry with an eligibility
and evaluation score of 31.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE), trichloroethene (TCE) and 1,1-dichloroethene (1,1DCE). Contaminants of concern at the site may change as new data become
available. Other contaminants at the site include benzene, toluene and
ethylbenzene from nearby underground storage tanks and nitrates.
West Central Phoenix – West Grand Avenue
Boundaries: The site is bounded approximately by Osborn Road to the north,
33rd Avenue to the east, Earll Drive to the south and 35th Avenue to the west.
The site was placed on the Registry in 1998 with a score of 17 out of a possible
120. The site was re-scored for the June 2001 Registry with an eligibility and
evaluation score of 22.
Contaminants: The current contaminant of concern in groundwater is
trichloroethene (TCE). Contaminants of concern at the site may change as new
data become available. Other contaminants at the site include nitrates.
West Central Phoenix – North Plume
Boundaries: The site is bounded approximately by Turney Avenue to the north,
38th Avenue to the east, Indian School Road to the south and 43rd Avenue to
the west. The site was placed on the Registry in 1998 with a score of 50 out of a
possible 120. The site was re-scored for the June 2001 Registry with an eligibility
and evaluation score of 55.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE), trichloroethene (TCE), 1,1-dichloroethene (1,1-DCE),
ADEQ's FY '02 WQARF Report, Page 13

vinyl chloride and chromium. Contaminants of concern at the site may change as
new data become available. Other contaminants at the site include methyl
tertiary butyl ether (MTBE), benzene, toluene, ethylbenzene and xylenes from
nearby underground storage tanks.
West Central Phoenix – North Canal Plume
Boundaries: The site is bounded approximately by Indian School Road to the
north, 36th Avenue to the east, Clarendon Avenue to the south and 40th
Avenue to the west. The site was placed on the Registry in 1998 with a score of
22 out of a possible 120. The site was re-scored for the June 2001 Registry with
an eligibility and evaluation score of 27.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE), trichloroethene (TCE), 1,1-dichloroethene (1,1-DCE)
and chromium. Contaminants of concern at the site may change as new data
become available. Other contaminants at the site include methyl tertiary butyl
ether (MTBE) from nearby underground storage tanks.
West Central Phoenix – West Osborn Complex
Boundaries: The site is bounded approximately by the Grand Canal to the north,
34th Drive to the east, Pinchot Avenue to the south and 39th Drive to the west.
The site was placed on the Registry in 1998 with a score of 47 out of a possible
120. The site was re-scored for the June 2001 Registry with an eligibility and
evaluation score of 52. ADEQ provides regulatory oversight and technical review
of investigations and site activities performed by United Industrial Corporation at
the West Central Phoenix – West Osborn Complex site.
Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE) and trichloroethene (TCE). Contaminants of concern
at the site may change as new data become available. Other contaminants at the
site include methyl tertiary butyl ether (MTBE) from nearby underground storage
tanks and nitrates.
West Van Buren
Boundaries: The site is bounded approximately by I-10 to the north, Seventh
Avenue to the east, Buckeye Road to the south and 75th Avenue to the west. In
addition, a finger shaped plume exists between 11th Avenue and 35th Avenue
and between Buckeye and Lower Buckeye Roads. The site was placed on the
Registry in 1998 with a score of 50 out of a possible 120.

ADEQ's FY '02 WQARF Report, Page 14

Contaminants: The current contaminants of concern in groundwater include
tetrachloroethene (PCE), trichloroethene (TCE), 1,1-dichloroethane (1,1DCA), cis-1,2-dichloroethene (cis-1,2-DCE), 1,1-dichloroethene (1,1-DCE) and
chromium. Current contaminants of concern at the site may change as new data
become available.
Western Avenue Plume
Boundaries: The site is bounded approximately by the groundwater contamination plume which generally extends from Hill Drive (north of Western Avenue)
to the north, 3rd Street to the east, approximately 1,000 feet north of State
Route 85 to the south and the Phoenix-Goodyear Airport to the west. The site
was placed on the Registry in 1998 with a score of 51 out of a possible 120.
Contaminants: The current contaminant of concern in groundwater is
tetrachloroethene (PCE). Contaminants of concern at the site may change as
new data become available.

National Priorities List Sites (Federal Superfund)
The National Priority List (NPL) is EPA’s list of the most serious uncontrolled or
abandoned hazardous waste sites identified for possible long-term remedial response
under Superfund. Inclusion of a site on the list is based primarily on the score the site
receives under the hazard ranking system. Money from Superfund can be used for
cleanup only at sites that are on the NPL. EPA is required to update the NPL at least
once a year.
19th Avenue Landfill
Boundaries: The 19th Avenue Landfill site covers approximately 213 acres and is
located in Phoenix at the southeast corner of 19th Avenue and Lower Buckeye
Road. Prior to its use as a landfill in the late-1950s, the site was mined for sand
and gravel. The gravel pits were later filled with municipal waste from local
industries.
Contaminants: During the remedial investigation, the groundwater was found to
contain very low levels of volatile organic compounds (VOCs), heavy metals
including arsenic, barium, mercury, and nickel and beta radiation. Currently, the
only compound that is above maximum contaminant level for drinking water
standards is 1,1-dichloroethene (1,1-DCE). Sampling of soil and refuse in the
landfill indicated that the contents of the landfill are similar to those expected in
municipal landfills, however, industrial wastes were also disposed of at the site.
During the remedial investigation, the most frequently detected VOCs were ethyl
ADEQ's FY '02 WQARF Report, Page 15

benzene, 1,4-dichlorobenzene, xylenes and toluene. This project is in the operations and maintenance phase, remediation activities have been completed.
Quarterly groundwater monitoring, monthly methane monitoring, and inspections of the landfill cap, flood control structures and landscaping continue.
Apache Powder
Boundaries: The Apache Powder Superfund site is located in Cochise County,
approximately 7 miles southeast of the incorporated town of Benson and 2.5
miles southwest of the unincorporated town of St. David. The site study area
covers approximately nine square miles and includes 945 acres of land owned by
Apache Nitrogen Products, Inc. (ANP), formerly known as the Apache Powder
Company. The San Pedro River bounds the eastern side of the site, running from
the southeast corner of the property towards the northwest.
Contaminants: Contaminants of concern found at the Apache Powder site
include: arsenic, fluoride and nitrate in the perched groundwater; nitrate in the
shallow groundwater aquifer; arsenic, antimony, barium, beryllium, chromium,
lead, manganese and nitrate in the inactive pond soils, and sediments; as well as
2,4-DNT, 2,6-DNT and lead in Wash Area 3. Additionally, the waste materials
vanadium pentoxide and TNT were found in soils on the site, and perchlorate
has been found in the perched and shallow aquifer groundwater.
Hassayampa Landfill
Boundaries: The Hassayampa Landfill site is located about 10 miles west of
Buckeye and is approximately six miles east of the Palo Verde Nuclear Generating Station. The site consists of about 10 acres used for hazardous waste disposal
that lies within a 47 acre landfill. The industrial waste disposal operations were
independent of sanitary landfill activities.
Contaminants: Contaminants of concern detected at Hassayampa that exceeded
the federal maximum contamination levels for groundwater include 1,1dichloroethene, trichlorotrifuoroethane, 1,1,1-trichloroethane, 1,1dichloroethane, trichloroethene, tetrachloroethene, trichlorofluoromethane, 1,2dichloroethene, 1,2-dichloropropane and toluene. Ambient air contains very low
levels of volatile organic compounds (VOCs). Groundwater sampling results also
have identified various VOCs. Soils beneath the waste pits contain VOCs, heavy
metals, pesticides and lime wastes.
Indian Bend Wash – North
Boundaries: North Indian Bend Wash is the northern part of the area designated
by EPA as the Indian Bend Wash Superfund Site. The boundaries of the site are
ADEQ's FY '02 WQARF Report, Page 16

approximately Chaparral Road to the north, Pima Road to the east, Scottsdale
Road to the west and just south of Curry Road to the south. In some locations,
groundwater contamination has extended beyond these boundaries, and those
locations are considered part of the Superfund site. The area is fully developed,
consisting primarily of residential and commercial properties and developed open
areas such as parks.
Contaminants: In 1981, volatile organic compounds were discovered in area wells
in concentrations exceeding Arizona Department of Health Services action
levels. Volatile organic compounds were used as degreasing agents and solvents at
various industrial facilities located in the study area.
Indian Bend Wash – South
Boundaries: The South Indian Bend Wash study area encompasses approximately
4 square miles in Tempe. South Indian Bend Wash adjoins the ten square mile
area of North Indian Bend Wash. South Indian Bend Wash and North Indian
Bend Wash together form the Indian Bend Wash Superfund site. The site is
primarily commercial and industrial north of University Avenue and residential
to the south.
Contaminants: The groundwater in the South Indian Bend Wash area is mainly
contaminated with volatile organic compounds. Soil is contaminated with
volatile organic compounds, cyanides, acids, and heavy metals including chromium and lead.
Motorola 52nd Street
Boundaries: The Motorola 52nd Street site is located in a residential and commercial area in the eastern part of Phoenix. The site has been divided into three
operable units. The boundaries for Operable Unit 1 are 52nd Street to the east,
Palm Lane to the north, Roosevelt Street to the south and 46th Street to the
west. The approximate boundaries for Operable Unit 2 are Roosevelt Street to
the north, 46th Street to the east, Buckeye Road to the south and 14th Street to
the west. The approximate study area of Operable Unit 3 is McDowell Road to
the north, 14th Street to the east, Buckeye Road to the south and Seventh
Avenue to the west. Responsible parties include both Motorola Inc. and
Honeywell International.
Contaminants: Contaminants known to be present in the groundwater at levels
above regulatory limits include the following chlorinated solvents:
trichloroethene (TCE), tricholoroethane (TCA), dichloroethene (DCE),
dichloroethane (DCA) and vinyl chloride.

ADEQ's FY '02 WQARF Report, Page 17

Phoenix-Goodyear Airport North
Boundaries: The Phoenix-Goodyear Airport (PGA) Superfund Site is located
approximately 17 miles due west of Phoenix, in the western part of the Salt River
Valley in central Arizona. The site study area covers a total area of about 35
square miles and is divided into a southern portion (PGA–South) and a northern
portion (PGA–North). Contamination from these two areas is noncontiguous.
Except for the airport, which is owned by the city of Phoenix, the PGA site lies
almost entirely within the city of Goodyear. The city of Avondale occupies about
2 square miles along the eastern border of the site. The physical boundaries of the
PGA North site are defined by the groundwater contamination plume which is
generally bounded by Thomas Road to the north, Litchfield Road to the east, the
Unidynamics property on Litchfield Road to the south and Bullard Avenue to the
west. The site consists of the Unidynamics property and any groundwater
contamination emanating from this property.
Contaminants: The contaminants identified at the PGA North site are: chlorinated solvents, mainly trichloroethene (TCE) and perchlorates. TCE is present in
the soils located within the Unidynamics property as well as in the groundwater.
The perchlorates were discovered in the groundwater in August 1998.
Phoenix-Goodyear Airport South
Boundaries: The Phoenix-Goodyear Airport (PGA) Superfund site is geographically situated approximately 17 miles due west of Phoenix, in the western part of
the Salt River Valley in central Arizona. The site study area covers a total area of
about 35 square miles and is divided into a southern portion (PGA–South) and a
northern portion (PGA–North). Contamination from these two areas is noncontiguous. Except for the airport, which is owned by the city of Phoenix, the PGA
site lies almost entirely within the city of Goodyear. The city of Avondale
occupies about 2 square miles along the eastern border of the site. The approximate physical boundaries of the PGA South site are Yuma Road to the north,
Litchfield Road to the east, Broadway Road to the south and Reems Road to the
west. The site consists of the Loral Defense Systems–Arizona (Loral) property
and the Phoenix-Goodyear Airport property and any groundwater contamination
emanating from these areas.
Contaminants: The contaminants identified in the groundwater at the PGA
South site are: trichloroethene (TCE) and chromium. The soils containing
chromium and cadmium above the health based guideline levels were stabilized,
thereby eliminating the risk of exposure by ingestion and inhalation and preventing migration to groundwater.

ADEQ's FY '02 WQARF Report, Page 18

Tucson International Airport Area
Boundaries: The Tucson International Airport Area is a 24 square mile site
placed on the NPL in 1983. The Tucson International Airport Area site contains
seven major project areas including Air Force Plant 44 (AFP 44), Tucson Airport
Remediation Project, the airport property, the Arizona Air National Guard
(AANG) 162nd facility, Texas Instruments Tucson Corporation, the former
West-Cap property and West Plume B.
Contaminants: Groundwater investigations have defined a groundwater contamination plume (main plume) in the regional aquifer. The main plume, consisting
mainly of trichloroethene (TCE), with smaller amounts of dichloroethene (DCE),
chloroform and chromium, extends from AFP 44 north past Irvington Road.
162nd Air National Guard
Boundaries: The Arizona Air National Guard 162nd Tactical Fighter Group,
occupies 84 acres of the Tucson International Airport Area site and is located at
15008 Valencia Road in Tucson. The base has been in operation since 1956 in
training functions for various tactical fighter aircraft.
Contaminants: Trichloroethene (TCE) is the primary groundwater contaminant
at this site. A groundwater pump, treat and reinjection system treats approximately 110 gallons per minute. A soil vapor extraction system was started on
April 3, 1997 and shut down on Nov. 29, 1997, after achieving complete soil
remediation.
Raytheon Air Force Plant #44
Boundaries: Raytheon Air Force Plant #44, located in the southern portion of
the Tucson International Airport Area site, is a federally owned weapons manufacturing facility operated under contract by the Raytheon Corporation (formerly
Hughes). The plant is bounded to the north and east by the Tucson International
Airport, to the south by Hughes Access Road and to the west by the Nogales
Highway (Route 89). The plant is permitted under the Resource Conservation
and Recovery Act.
Contaminants: Historic waste disposal operations at the plant resulted in soil and
groundwater contamination of metals and volatile organic compounds (VOCs),
including trichloroethene (TCE). Remediation activities include a large-scale
pump, treat and reinjection system, soil vapor extraction systems, dual-phase
extraction systems, and soil excavation and removal.
Williams Air Force Base
ADEQ's FY '02 WQARF Report, Page 19

Boundaries: The former Williams Air Force Base is located in Mesa, Arizona
approximately 30 miles southeast of central Phoenix. It is approximately 4,127
acres in size and the study area includes the entire Base. Williams Air Force Base
is now utilized as the Williams Gateway Airport and the Arizona State University
East and Maricopa Community College campus since the removal of military
personnel and transition to educational and commercial uses.
Contaminants: Contaminants from base activities included organic solvents and
paint strippers, petroleum spills, metal plating wastes, hydraulic fluids, pesticides
and radiological wastes. Discharges and disposal at Williams Air Force Base had
resulted in soil and groundwater contamination. The remaining groundwater
contaminant issue is a plume of jet fuel contamination.
Yuma Marine Corps Air Station
Boundaries: Marine Corps Air Station Yuma occupies approximately 3,000 acres
within the city and county of Yuma (2nd Congressional District). The city of
Yuma, the nearest municipality, is located approximately one mile northwest of
the station.
Contaminants: For soil, the contaminant of concern is asbestos in the form of
non-friable asbestos containing material. The asbestos containing material is
scattered on top of and buried in the surface soil. For groundwater, the contaminants of concern are chlorinated solvents (
). The main groundwater
plume is approximately one mile long and 500 feet wide, and has reached the
downgradient edge of the base. The maximum concentration of total solvents is
currently approximately 270 parts per billion (ppb). All of the groundwater
contamination has been detected downgradient of the old on-station drinking
water well. However, the on-station drinking water well is no longer used and
none of the groundwater is used elsewhere on the base.

Department of Defense Sites
The Department of Defense sites are those sites that are located at either active duty
bases or bases being closed under the base realignment and closure regulations and
formerly used defense sites that are eligible for funding under the installation restoration program that ADEQ oversees.

ADEQ's FY '02 WQARF Report, Page 20

161st Air National Guard
Boundaries: The 161st Air National Guard is located on the southwest corner of
a 50.7 acre site at Phoenix Sky Harbor International Airport between the south
runway and the Salt River Channel. The Air National Guard Base has been
located just south of the airport since 1957. The facility is currently used for a
refueling group in support of Air Combat Command activities. Typical activities
at the site have included aircraft fueling maintenance, ground equipment
maintenance and other associated activities.
Contaminants: Past aircraft maintenance and fueling operations at the site have
led to surface and subsurface soil and groundwater contamination with petroleum
products and volatile organic compounds (VOCs).
Barry M. Goldwater Range
Boundaries: The Barry M. Goldwater Range is an almost 2.7 million acre military
training area formed from Bureau of Land Management and US Fish and Wildlife
Service lands in southwestern Arizona. The range is under the overall management of the United States Air Force, but is divided into two management units
for the Air Force and the Marine Corps. The portion of Barry M. Goldwater
Range managed by the US Fish and Wildlife Service is the Cabeza Prieta National Wildlife Refuge, and forms about 30 percent of the Barry M. Goldwater
Range area.
Contaminants: Luke Air Force Base conducted an Installation Restoration
Program on the Barry M. Goldwater Range in 1992. The Installation Restoration
Program identified 218 possible areas of concern. Of these sites, 130 required no
further action and were closed, leaving 88 areas of concern. Forty-five of the 88
areas of concern are active operations and are managed under state and federal
Resource Conservation and Recovery Act regulations. The other 43 sites were
declared to be Installation Restoration Program sites. As part of a site investigation, additional investigations have been made at 12 of these sites. The site
investigation includes two areas at the Gila Bend Auxiliary Air Field with the
remaining ten sites dispersed at the former Ajo Air Station (within the national
wildlife refuge), Sentinel Navy antenna site and various locations within the
range.
Camp Navajo
Boundaries: The Navajo Depot Activity, designated “Camp Navajo” as of
September 1993, is located at Bellemont, in north-central Arizona. It is 12 miles
west of Flagstaff and 17 miles east of Williams. The facility encompasses 28,347
acres and is situated in heavily forested to grassy, gently rolling to steep hilly
ADEQ's FY '02 WQARF Report, Page 21

terrain approximately 7,100 feet above mean sea level. Facilities present at Camp
Navajo include approximately 170 buildings of which 32 are currently used for
administration, maintenance, operations and storage. There are 776 igloo
structures for storage of conventional (and formerly chemical) munitions. There
is a demolition area in the southern portion, and buffer zones along the eastern
and western borders of the base.
Contaminants: Contaminants of concern include heavy metals, volatile organic
compounds (VOCs), semi-volatile organic compounds (SVOCs), pesticides and
constituents of explosives.
Davis-Monthan Air Force Base
Boundaries: Davis Monthan Air Force Base is located in eastern Tucson. The
northern boundary gradually descends to the south from Golf Links Road to
Irvington Road. The boundary to the east is Harrison Road with Alvernon Way
as the western boundary. The southern most boundary is Valencia Road on the
east side of the site area. The study area consists of the entire base.
Contaminants: Contamination at the base has been primarily surface soil contamination with petroleum wastes, waste piles of hazardous aluminum dross and a
large volume underground jet fuel leak. The aluminum dross (from past melting
of obsolete aircraft) on the base has been treated by solidification and stabilization and transported to an off-site landfill.
Fort Huachuca
Boundaries: Fort Huachuca is an Army post located in Sierra Vista, in southeastern Arizona. Fort Huachuca has been in continuous operation since its establishment in 1877.
Contaminants: The areas of interest, as a result of two consent decrees with
ADEQ involve four hazardous waste sites (consent order D-10-91) 18 underground storage tank or leaking underground storage tank sites (consent order L58-96). Of the 20 sites considered to be solid waste sites from the original
Consent order (C-10-91), eleven sites remain. Six of these sites require no further
action and are awaiting a decision document for closeout. The remaining five
sites are undergoing remediation, monitoring or both.
Gila Bend Auxiliary Air Field
Boundaries: The Gila Bend Auxiliary Air Field is located approximately 2 miles
south of Gila Bend off of State Highway 85.

ADEQ's FY '02 WQARF Report, Page 22

Contaminants: In 1994, the Air Force conducted site investigations of two sites
at the facility, the former fire training area FT-27 and a nearby maintenance area.
Limited contamination was found at the former fire training area with a determination that it did not poise a threat to groundwater. Sampling of the maintenance area did not reveal any contamination warranting further action. The
facility is managed, for environmental purposes, by Luke Air Force Base in
Glendale, Ariz.
Yuma Army Proving Grounds
Boundaries: The US Army Yuma Proving Ground is located on the CaliforniaArizona border north of Yuma, 32 miles northeast of Yuma and occupies approximately 870,000 acres in size in Yuma and La Paz counties. Its western edge is
adjacent to the Colorado River.
Contaminants: Contaminants of concern include petroleum hydrocarbons,
volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs)
and metals. Contaminated media are soil and groundwater. The US Army has
identified 19 solid waste management units for investigation under the Yuma
Proving Ground remedial investigation and feasibility study. The overall objective
of the remedial investigation in the 19 solid waste management unit sites is to
characterize the nature and extent of the risks posed by contaminants present for
each site. A pilot soil vapor extraction system is under operation at the fuel
bladder site for the remediation of hydrocarbon contamination.

ADEQ's FY '02 WQARF Report, Page 23