UNIDYNAMICS PHOENIX, INC
GOODYEAR AEROSPACE CORP
PHOENIX GOODYEAR MUNICIPAL AIRPORT
GEOLOGIC CROSS SECTIONS ARE SIMPLIFIED FOR PRESENTATION. ACTUAL DEPTHS VARY ACROSS THE SITE.
RDD63605.RA MAY 19
FIGURE 2-1 SIMPLIFIED NORTH-SOUTH CROSS SECTIONAL VIEW OF GEOLOGY
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PHOENIX GOODYEAR AIRPORT ROD
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Table 2-1
COMPARISON OF THE APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS
AND OTHER CRITERIA TO GROUNDWATER DATA
Well/
Station ID GROUNDWATER 16EMW-1 16EMW-2
Present Well Use
Compound
Concentration
(US/1)
ARARa
Exceeded ._
Other Criteria
Exceeded
-~ Monitoring Monitoring
Lead Max- 13 Max-9 Avg-<4 MCL, 5 llg/11^ MCL, 7 llg/1 -- MCL, 5 llg/1 T MCL, 5 llg/1 -- MCL, 5 llg/1 -~ MCL, 5 llg/1 _ MCL, 7 llg/1 -1 MCL, 7 11g/l MCL, 5 Jlg/1 ~ MCL, 5 jlg/1 MCL, 100 Jlg/Id MCL,
1, 1-Dichloroethylene
Trichloroethylene
Lead
ADHS action level0 ADHS action level ADHS action level
Max- 75
Avg-33 Max- 14 Avg-7.8 Max- 140 Avg-126 Max-490 Avg-342 Max-513 Avg-472
16EMW-3
Monitoring
1,1 -Dichloroethylene
Trichloroethylene
ADHS action level ADHS action level
ADHS action level
ADHS action level
Chromium (total)
100 pg/r
HAe -- longer term/ 70 kg, lifetime
HA -- longer term/
70 kg, lifetime
II II I I ft
EMW-18B EMW-18UC EMW-19B EMW-19UC
Monitoring Monitoring Monitoring
Lead Lead Lead
Max-80 Avg-80 Max-80 Avg-<53 Max-50 Avg-<37 Max-70 Avg-<47 Max-50 Avg-<37
MCL, 5 llg/1 MCL, 5 llg/1 _ MCL, 5 llg/1 MCL, 5 llg/1 MCL, 5 Tlg/1 MCL, 5 llg/1 _ MCL, 5 llg/1 ^ MCL, 5 plg/1 MCL, 5 llg/1 MCL, 5 llg/1
Monitoring Monitoring
Lead
Lead
EMW-19LC
propane
1,2-Dichloro-
Max- 1.4 Avg-1.4 Max-3.1 Avg-3.1 Max-80 Avg-<52 Max- 100 Avg-100 Max- 60
Avg-<42 -_ MCL, 5 llg/1 MCL, 5 llg/1 ' MCL, 50 llg/1^ MCL, 50 llg/1 MCL, 5 llg/1 T MCL, 5 llg/1 ^ MCL, 5 llg/1 -- MCL, 5 llg/1 _ MCL, 5 Jlg/1 -- MCL, 5 llg/1 MCL, 5 llg/1 MCL, 5 llg/1 MCL, 5 llg/1 MCL, 5 llg/1
ADHS action level _ ADHS action level
ADHS action level
I I II II II
Chloroform
EMW-20B2
ADHS action level
Monitoring
Lead Silver
EMW-20UC EMW-20LC EMW-21UC EMW-22LC EMW-27MF
Monitoring Monitoring Monitoring Monitoring Monitoring
Lead
Lead Lead Lead Lead Arsenic6
Max-50
Avg-<37
Max-50
Avg-<33 Max-50 Avg-<37 Max-70 Avg-<48 Max-47
MCL, 5 llg/1
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I t I
Table 2-1 (continued)
Well/ Station ID EMW-28B
EMW-28UC EMW-28LC 16GMW-1
Present Well Use
Monitoring
Monitoring
Compound Lead
Lead
Concentration CUE/1)
Max- 170 Avg-110
Max-90 Avg-<57
ARARa Exceeded MCL, 5 Jlg/1 MCL, s jig/i MCL, 5 Jlg/1 MCL, 5 Jlg/1
MCL, 5 Jlg/1 MCL, 5 Jlg/1 MCL, 5 Jlg/1 MCL, 5 Jlg/1 MCL, 100 Jlg/1 MCL, 100 Jlg/1
Other Criteria Exceeded
I I I
Monitoring
Lead
Max- 90 Avg-80
Monitoring
Trichloroethylene
Max-41.7 Avg-34
ADHS action level ADHS action level
Chromium (total)
16GMW-2
Max- 190
Avg-150
HA--lifetirne
MCLG, ADHS action level MCLG, ADHS action level
I I I I I I I 1 I I I I I
Monitoring
Carbon tetrachloride
Max-5.1
Avg-<2
Methylene chloride
Max-13.2 Avg-<6.8 .Max-24.9 Avg-21
Max-18 Avg-18 Max-12.8 Avg-10.8 Max-5.1 Avg-3.5
MCL,. 5 Jlg/1
MCL, 5 Jlg/1 MCL, 5 Jlg/1 MCL, 5 Jlg/1 MCL, 7 Jlg/1 MCL, 7 Jlg/1
ADHS action level ADHS action level ADHS action level ADHS action level
-Tricbloroethyleae Lead
16GMW-3
Monitoring 1,1-Dichloroethylene Carbon tetrachloride
ADHS action level ADHS action level
MCLG, ADHS action level MCLG, ADHS action level
Trichloroethylene
Chromium (total)
Max-155 Avg-102.7
MCL, 5 Jlg/1 MCL, 5 Jlg/1 MCL, 100 Jlg/1 MCL, 100 Jlg/1
ADHS action level
ADHS action level
Max-1,340 Avg-977
HA--longer term/
10 kg & 70 kg, lifetime HA--longer term/ 10 kg & 70 kg, lifetime
16GMW-3 9UMW-1,2,3,4 Monitoring
Selenium Trichloroethylene
Max-18 Avg-16.7 Max-350,000 Avg-<66,662
Max-8,800 Avg-8,800 Max-20
MCL, 10 Jlg/lf MCL, 10 Jlg/1 MCL, 5 Jlg/1 MCL, 5 Jlg/1
ADHS action level ADHS action level HA--10-day/10 kg,
Total Xylenes
longer term/10 kg,
lifetime
MCL, 5 Jlg/1 MCL, 5 Jlg/1
Lead 9UMW-4 9UMW-5 Monitoring Monitoring Methyl ethyl ketone Trichloroethylene Lead
Avg-<7.2 Max-11,000
Avg-11,000
ADHS action level ADHS action level MCLG MCLG
MCL, 5 Jlg/1 MCL, 5 Jlg/1
Max-3.3
Avg-<1.4 Max-20 Avg-<8.7
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Table 2-1 (continued) Well/ Station ID 9UMW-6
Present
Well Use Compound
Concent ration
(Jls/1)
Max- 6. 5
Avg-4.2
ARARa Exceeded
Other Criteria
Exceeded ADHS action Level MCLG
Monitoring
Trichloroe thylene Lead
MCL, 5 Pg/1^ MCL, 5 llg/1MCL, 5 Tlg/1 MGL, 5 Vg/l MCL, 5 PS/1
Max- 10
Avg-<6 . 3
9UMW-7,8,9 9UMW-8
9UMW-11
Monitoring Monitoring
Monitoring
Trichloroe thy lene Methyl ethyl ketone
Lead Selenium
Max- 140, 000 Avg-23,744
_,
ADHS action level ADHS action level ADHS action level ADHS action level
Max-900
Avg-900 Max-60 Avg-45
Max-80 Avg-<52.5 Max-40 Avg-30
'--
MCL, 5 Veil MCL, 5 Veil MCL MCL
^
9UMW-12
Monitoring
Lead
MCL, 5 Veil ^ MCL, 5 MCL, MCL,
Trichloroethylene
9UMW-13
Max- 450 Avg-<288
Max-2.9 Avg-2.9 Max-5.9 Avg-5.9
veil :: 5 veil _ 5 ptg/i
ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level
Monitoring
1 , 2-Dichloroethane Chloroform
Methylene Chloride
_ ^ -- ^
Veil Veil -- 5 Veil ^ 5 VsH -
Max- 19 Avg-19
Max-80 Avg-<52.5 Max-20 Avg-<12.5
MCL
Selenium
9UMW-14 9UMW-15
It
MCL
MCL, 5 MCL, 5 MCL, MCL,
Monitoring Monitoring Industrial Industrial
Lead Trichloroethylene
Max- 2 00 Avg-102 Max- 16 Avg-9.8 Max- 110 Avg-44
ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level
GAG #2 GAG #3 GAG #3 GAG #4 PLA #2
PLA #3 PLA #4
Trichloroethylene
Trichloroethylene Chromium (total)
MCL, 5 veil MCL, 5 pig/i MGL, 5 Veil MCL, 5 pg/i
^
I
Max- 170 Avg-170
Max-45 Avg-12 Max-36 Avg-12. 4 Max-310 Avg-256 Max-96 Avg-96 Max-22 Avg-10.5
l/T MCL, 100 | g ] MCL, 100 Jlg/1
Fire Irrigation
Not in use
Trichlo roe thy lene
MCL, 5 veil MCL, 5 pg/i MCL, 5 pg/i MCL, 5 veil MCL, 5 Veil MCL, 5 Vsfi
MCL, 5 MCL, 5
^
--
ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level ADHS action level
Trichloroethylene Trichloroethylene Arsenic Trichlo roe thy lene
Not in use
GE #4A
Irrigation
MCL, MCL,
Veil veil 5 veil 5 Veil _
HA--all categories
ADHS action level ADHS action level
2-6
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Table 2-1
(continued) Well/ Present Concent rat ion (J12/1)
Max-24 Avg-<13 Max-6.8 ARARa
Station ID
COG #1,2,3,6
Well Use
Municipal
Other Criteria
ComDound
Lead Trichloroethylene
Exceeded
MCL, 5 jlg/1 MCL, 5 Jlg/1
MCL, 5 pg/1 MCL, 5 Jig/1 MCL, 5 yg/1
Exceeded
Avg-<1.5
ADHS action level MCLG
COG #10
COTRIR
Municipal Irrigation
Lead Trichloroethylene
Max- 102 Avg-102
Max- 4. 5
Avg-3.3
MCLG
MCLG
DOMES! #3 PHILLIPS PLUMB
R.WOOD1 R.WOOD2 R5.6W3.5 RAYNER2 RECMET2 S.SMITH2 SHAWVER
Domestic
Irrigation Domestic
Irrigation
Trichloroethylene
Trichloroethylene Trichloroethylene
Trichloroethylene
Max- 2. 3 Avg-2.3 Max- 12 Avg-10.3
Max-3 Avg-3 Max-3
Avg-2.5
MCLG
MCLG
MCL, 5 yg/1 MCL, 5 Jlg/1
ADHS action level
ADHS action level MCLG MCLG
MCLG MCLG MCLG MCLG MCLG MCLG
Irrigation Irrigation Irrigation Industrial Irrigation Domestic
Trichloroethylene Trichloroethylene Tr ichlo r oethy lene Trichloroethylene Trichloroethylene Trichloroethylene
Max- 2 Avg-<1.3 Max- 1.7 Avg-
MCLG
Max- 6 Avg-4.4
Max-3 Avg-2 Max-3 Avg-3
MCL, 5 JIg/1
ADHS action level MCLG MCLG MCLG MCLG MCLG
^ARAR=AppIicable or relevant and appropriate requirements. See U.S. EPA, 1988. The MCL for lead is proposed at 5 JlgflL This proposed standard was used in this analysis. °ADHS action leveI=Arizona Department of Health Services action level. See U.S. EPA, 1989. The MCL for chromium (total) is proposed at 100 Jlg/1. This proposed standard was used in this analysis.
|HA=HeaIth advisory. Notes:
The current MCL for selenium is 10 Jlg/1. The proposed MCL is SO Jlg/1 (see U.S. EPA, 1989).
MCL = Maximum contaminant level.
MCLG = Maximum contaminant level goal.
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I
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FIGURE 2-2
ORGANIC COMPOUNDS ABOVE ARAR CONCENTRATIONS SUBUNIT A
. - _ - - - _ . _ . . M A Y 1989 REVISED AUGUST 1989 PHOENIX GOODYEAR AIRPORT ROD
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LEGEND
WELLS SCREENED WITHIN SUBUNIT B WELLS SCREENED WITHIN SUBUNIT B AND OTHER SUBUNITS AND/OR UNITS
1 2 5
TRICHLOROETHYLENE
1.1-DICHLOROETHYLENE CHLOROFORM
6 CARBON TETRACHLORIDE RDD63805.RA MAY 1989
F I G U R E 2-3 ORGANIC COMPOUNDS A B O V E ARAR CONCENTRATIONS SUBUNIT B R UDUNIT
PHOENIX GOODYEAR AIRPORT BOD °
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I
contaminations levels are found in Subunit A, which is the shallower water-bearing zone, and migrates to the Subunit B/C zone.
_ _ . _ _ - _ -_,,-__ __ ___ 0 ___ ________ ..__ _____ _ the soils at the site. Chromium, cadmium, aluminum, copper, TCE, and PCE were detected at concentrations exceeding the ADHS health-based cleanup levels. Table 2-2 includes the locations where ADHS levels were exceeded in soil samples. In addition, concentrations of methyl ethyl ketone and acetone were detected as high as 659 mg/kg and 888 mg/kg, respectively, in the northern portion of the site. Table 2-2 also includes contaminants detected in air samples which exceeded the ADHS guidelines. Carbon tetrachloride, benzene, TCE, and PCE exceeded the ADHS guidelines in air samples.
EXPOSURES ENVIRONMENTAL RECEPTORS II
m TM
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II
Within the PGA site, there are no unique habitats nor any threatened or endangered species. Native vegetation at the site is sparse. However, located immediately south of the site, the lower Gila River represents the important riparian habitat in southwestern Arizona. Species that inhabit or migrate through the area include four federally listed or endangered species: brown pelican (Pelecanus occidentalis), Yuma clapper rail (Rallus longirostris yumanensis), peregrine falcon (Falco peregrinus), and the bald eagle (Haliaeetus leucocephalus).
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The PGA area, particularly near the Gila River, supports viable hunting populations of mourning dove, white-winged dove, Gambel's quail, and various waterfowl. The area is especially popular for dove hunting and is known to support one of the largest breeding dove colonies in the Southwest.
POPULATION CHARACTERISTICS/RECEPTORS
TM
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In 1985, the combined population of the Goodyear and Avondale area was 30,000. The City of Goodyear has stated in its general plan that the city expects to grow at a rapid pace, exceeding 140,000 people within 20 years. However, this may overestimate actual population growth.
Municipal wells contaminated above Federal and State standards have been taken out of service. All drinking
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I I I I I I I I
I I I I I I I I I I I
LEG
WELLS SCREENED WITHIN SUBUNIT C WELLS SCREENED WITHIN SUBUNIT C AND OTHER SUBUNITS AND/OR UNITS
1 2 5 6 7
TRICHLOROETHYLENE 1,1-DICHLOROETHYLENE CHLOROFORM CARBON TETRACHLORIDE TETRA OR PERCHLOROETHYLENE
FIGURE 2-4 ORGANIC COMPOUNDS ABOVE ARAR CONCENTRATIONS SUBUNIT C
PHOENIX GOODYEAR AIRPORT ROD
R D D 6 3 6 0 5 . R A MAY 1989
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Table 2-2
COMPARISON OF THE APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS AND OTHER CRITERIA TO SOIL AND AIR DATA
Maximum
Sample No. SOIL
All Test Pits
Location
Compound
Concentration (me/ke)
ARARa Exceeded
Other Criteria Exceeded
Former GAG Sludge Drying Beds; Background Sample Locations
Former GAC Sludge
Aluminum
16,410
ADHS Action Levelb
All Test Pits
Test Pit 0120
Test Pit 0606 All Test Pits
Cadmium
Cadmium Copper
20.3 1.2 303
29,461
ADHS Action Level ADHS Action Level ADHS Action Level ADHS Action Level
Drying Beds
Background -
Agricultural
Former GAC Sludge
1 1 1 I 1 1 1 I 1 1 1 H
Drying Bed
Former GAC Sludge Drying Beds Former GAC Facility
Airport Drain
Chromium Chromium
Aluminum
16-GB-2 16-EP-4
3,400 28,905
ADHS Cleanup Level
ADHS Cleanup Level
Ditch Near Outfall 001
20-EB-6 16-GB-4 AC-2 AC-4
0903 0908 0909 0902
Marsh Area South
of U.S. 85
Near Former GAC Sewerline
Aluminum Copper
TCE
24,300 317
1.4 0.46 2.51
ADHS Cleanup Level ADHS Cleanup Level ADHS Cleanup Level ADHS Cleanup Level ADHS Cleanup Level
Airport Airport Airport Airport Airport Airport Airport
Former GAC Facility
TCE
TCE
TCE TCE TCE TCE PCE TCE TCE
TCE TCE TCE
0.53 0.338 2.27 0.45 0.150 2.31 1.28 0.937
860 0.415
ADHS Cleanup Level
ADHS Cleanup Level ADHS Cleanup Level
0910
I6-GB-I
ADHS Cleanup Level ADHS Cleanup Level ADHS Cleanup Level ADHS Cleanup Level ADHS Cleanup Level
ADHS Cleanup Level ADHS Cleanup Level
03A 10A 12B 01A 04A
Waste Facility 3,
UniDynamics
Waste Facility 10,
UniDynamics
Waste Facility 12,
UniDynamics
Waste Facility 1,
UniDynamics
Waste Facility 4,
UniDynamics
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Table 2-2
(continued) Maximum Concentration
Location Compound
(me/ke)
Sample No. AIR All Surface/ Breathing Zone
ARARa
Exceeded
Other Criteria
Exceeded
All Locations
Carbon Tetra-
1.3 Tig/m3 12.8 Jlg/m3 2.4 Wm3 8.2 jlg/m3 3.0 jlg/m3
ADHS Guideline
chloride ;
Benzene
T-0915; Surface
T-0902; Surface Former GAG
Facility
Former GAG Facility Upwind
PCE TCE PCE
ADHS Guideline ADHS Guideline
B02; Surface
a
ADHS Guideline
ARAR=Applicable or relevant and appropriate requirements. AOHS action leveI=Arizona Department of Health Services action level.
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water wells currently in use for municipal supply meet applicable Federal and State health standards. However, future population growth will result in greater usage of groundwater resources, particularly in the contaminated areas. Use of the groundwater, and development of the surrounding areas, may result in potential exposures to contaminants through the means described in Figure 2-5, if no action is taken at this site and contamination migrates to areas that contribute to municipal groundwater supply.
TOXICITY _
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General information describing the toxicity of compounds identified at the PGA site is provided in the PGA RI/FS. Compounds discussed here include those that are considered to be the most significant site contaminants. The general toxicity characteristics are described for both the organic and inorganic contaminants.
ORGANIC COMPOUNDS
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This group of compounds includes most of the contaminants identified at the PGA site. Several of these compounds-- carbon tetrachloride, chloroform, 1,1,1-trichloroethane, PCE, and TCE--may produce liver injury. Carbon tetrachloride and chloroform have more serious effects on the liver than TCE and PCE (Doull et al., 1980). Carbon tetrachloride, chloroform, PCE, and TCE have been classified by the EPA Carcinogen Assessment Group (GAG) as probable human carcinogens (Group B2) via ingestion ( . . EPA, 1989). US
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Exposures to the above compounds through inhalation may result in central nervous system depression, including anesthesia. Trichloroethylene has been used as an anesthetic (National Research Council [NEC], 1977). Other effects may include irritation of the mucous membranes of the nose and throat and irritation to the eyes (NEC, 1980). Trichloroethylene and PCE are also classified as probable human carcinogens by CAG via the inhalation route ( . . EPA, 1989). US 1,1-Dichloroethylene and trans-l,2-dichloroethylene exhibit similar toxic effects to humans through inhalation and ingestion exposures. These compounds have anesthetic properties, and exposures to high concentrations may cause nausea and vomiting ( . . EPA, 1985a). The CAG has US classified 1,1-DCE as a possible human carcinogen (Group C) for both inhalation and ingestion exposure routes ( . . EPA, US 1989).
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