United States Office of
Environmental Protection Emergency and
Agency Remedial Response
EPA/ROD/R02-91/164
September 1991
&EPA Superfund
Record of Decision
Frontera Creek, PR
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50272-101
REPORT DOCUMENTATION i. REPORT NO. 2.
PAGE EPA/ROD/R02-91/164
4. TMendSuMMe
SUPERFUND RECORD OF DECISION
Frontera Creek, PR
First Remedial Action - Final
7. AuOiorfa)
». PerforinmgCTgalntation Name and Address
U.S. Environmental Protection Agency
401 M Street, S.W.
Washington, D.C. 20460
X Radptonr* Accession No.
S. Report Det*
09/30/91
6.
8* HBoOiiiui iy OrQWnZBtion RcpL No*
10. Pro|ecVTask/Work Untt No.
11. Contnct(C) or Grant(G) No.
(C)
(G)
13. Type of Report & Period Covered
800/000
14.
15. Supplementary Note*
16. Abstract(Umrt 200 word*)
The Frontera Creek site is composed of 13 industrial facilities and 200 acres of
associated lagoons within the municipality of Humaco, Puerto Rico. The site includes
Frontera Creek, the industrial properties adjacent to the creek, the Frontera
lagoons, and the Ciudad Cristiana housing development located adjacent to the creek.
Land surrounding the site consists of mixed residential and industrial areas, and a
wildlife refuge. From 1971 to 1981, several industries within the site including
Technicon Electronics used mercury in manufacturing processes and discharged
wastewater directly into Frontera Creek. The Commonwealth of Puerto Rico
Environmental Quality Board (EQB) fined Technicon in 1978 for these processes,
resulting in the cessation of its mercury discharges to the creek. During
investigations in 1986, EPA identified mercury in surface soil and sediment on
Technicon property associated with the storage, use, or discharge of
mercury-containing compounds. This Record of Decision (ROD) addresses contaminated
soil and sediment on the Technicon property and provides a final remedy for the site.
The primary contaminant of concern affecting the soil and sediment is mercury.
(See Attached Page)
17. Document Analysis a. Descriptor*
Record of Decision - Frontera Creek, PR
First Remedial Action - Final
Contaminated Media: soil, sediment
Key Contaminant: metals (mercury)
b. loBn1in0fs/Op0tvEnd0d
c. COSATI Held/Group
18. AvaUaMMy Statement
19. Security das* (This Report)
None
20. Security Class (Trite Pege)
None
21. No. of Pages
111
22. Price
(SeeANSW3».18)
See Instructions on Reverse
OPTIONAL FORM 272 (4-77)
(Formerly NTIS-35)
Department of Commerce
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EPA/ROD/R02-91/164
Frontera Creek, PR
First Remedial Action - Final
Abstract (Continued)
The selected remedial action for this site includes excavating 180 cubic yards of soil
and 370 cubic yards of sediment contaminated with mercury; dewatering and containing the
excavated material, followed by disposing of the material offsite at a RCRA Subtitle D
or C waste facility; pretreating wastewater generated from dewatering, followed by
onsite discharge to Technicon's wastewater treatment plant, or offsite to a local
publicly owned treatment works (POTW); performing confirmatory soil sampling in the
remediated areas to verify that mercury concentrations in residual and onsite materials
do not exceed the clean-up levels; and regrading and revegetating the remediated areas.
The estimated present worth cost for this remedial action ranges from $562,000 to
$730,000, based on whether the waste is disposed of as a solid or hazardous waste,
respectively. There are no O&M costs associated with this remedial action.
PERFORMANCE STANDARDS OR GOALS: Clean-up levels for the soil and sediment onsite were
established based on a site-specific risk assessment and an HI=1, and include mercury
35 mg/kg.
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ROD FACT SHEET
SITE
Name: Frontera Creek Site
Location: Humacao, Puerto Rico
HRS Score: 41.23
NPL Rank: 230
ROD
Date Signed: September 30, 1991
Remedy: Excavation with off-site disposal of mercury-
contaminated sediments and soils.
Capital Cost: $ 722,000 to $ 1,013,000
O&M/Year: $ 0
/
Present Worth: $ 722,000 to $ 1,013,000
LEAD
Responsible Party: Revlon, Inc.
Primary Contact: Jose C. Font (809) 729-6951)
•>
PRP contact: David Lipsky (201) 944-1177
WASTE
Type: Mercury-contaminated sediments and soils
Medium: Sediments and soils
Origin: Process wastewater discharge and chemical
storage
Estimated Quantity: 550 cu. yds.
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DECLARATION TOR THE RECORD OF DECISION
SITE NAME AND LOCATION
Frontera Creek Site - Humacao, Puerto Rico
STATEMENT OF BASIS AND PURPOSE
This decision document presents the selected remedial action for
the Frontera Creek Superfund Site, in Humacao, Puerto Rico, which
was chosen in accordance with the requirements of the
Comprehensive Environmental Response, Compensation and Liability
Act of 1980 (CERCLA) as amended by the Superfund Amendments and
Reauthorization Act of 1986 ("SARA") and the National Oil and
Hazardous Substances Pollution Contingency Plan ("NCP"). This •
decision^document summarizes the factual and legal basis for
selecting the remedy for this site.
The Commonwealth of Puerto Rico Environmental Quality Board
("EQB") concurs with the selected remedy. A letter of
concurrence from EQB is appended to this document.
The information supporting this remedial action decision is
contained in the administrative record for this site, an index of
which is appended to this document.
ASSESSMENT'OF THE SITE
Actual or threatened releases of hazardous substances from this
site, if not addressed by implementing the response action
selected in this Record of Decision ("ROD"), may present an
imminent and substantial threat to public health, welfare, or the
environment.
DESCRIPTION OF THE SELECTED REMEDY
This action addresses the threats posed by the Site by excavating
mercury contaminated sediments and soils at the Site.
The major components of the selected remedy include:
0 Excavation of 370 cubic yards of mercury-contaminated
sediments in the Technicon ditch.
0 Excavation of 180 cubic yards of mercury-contaminated soils
at the Technicon facility surroundings.
0 Dewatering and containment of excavated material.
0 Off-site disposal of excavated material at a RCRA Subtitle D
or C waste facility.
0 Pretreatment of wastewater generated from dewatering and
discharge to Technicon's wastewater treatment plant, a local
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POTW, or an on-site treatment plant.
0 Performance of confirmatory soil sampling in the remediated
areas to verify that mercury concentrations in residual, on-
site materials do not exceed the remedial action objective
of 35 ppm.
0 Regrading and revegetating the remediated areas.
DECLARATION OF STATUTORY DETERMINATIONS
The selected remedy is protective of human health and the
environment, complies with Federal and State requirements that
are legally applicable or relevant and appropriate to the
remedial action, and is cost effective. This remedy utilizes
permanent solutions and alternative treatment technologies to the
maximum extent practicable for this site. However, because
treatment of the principal threats at the site was not found to
be practicable, this remedy does not satisfy the statutory
preference for treatment as a principal element of the remedy.
As this remedy will result in no hazardous substances remaining
on-site above health-based levels, a five year review is not
reoniired.
' eonstantine Sidamon-Eris£0ff Date"/
Regional Administrator// . / /
7f
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DECISION SUMMARY
FRONTERA CREEK SITE
HUMACAO, PUERTO RICO
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION II
NEW YORK
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TABLE OF CONTENTS
DECISION SUMMARY PAGE
I. SITE LOCATION AND DESCRIPTION 1
II. SITE HISTORY AND ENFORCEMENT ACTIVITIES 2
III. HIGHLIGHTS OF COMMUNITY PARTICIPATION 4
IV. SCOPE AND ROLE OF RESPONSE ACTION 4
V. SUMMARY OF SITE CHARACTERISTICS 4
VI. SUMMARY OF SITE RISKS 9
VII. DESCRIPTION OF REMEDIAL ALTERNATIVES 12
VIII. SUMMARY OF COMPARATIVE ANALYSIS OF ALTERNATIVES 17
IX. DESCRIPTION OF THE SELECTED REMEDY 22
X. STATUTORY DETERMINATIONS 22
ATTACHMENTS
APPENDIX A - FIGURES
APPENDIX B - TABLES
APPENDIX C - COMMONWEALTH OF PUERTO RICO ENVIRONMENTAL
QUALITY BOARD LETTER OF CONCURRENCE
APPENDIX D - RESPONSIVENESS SUMMARY
APPENDIX E - ADMINISTRATIVE RECORD INDEX
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I. SITE LOCATION AND DESCRIPTION
The Frontera Creek Site (the "Site") is located on the eastern
coast of Puerto Rico within the Municipality of Humacao at
approximately 18°9' north latitude and 65847' west longitude. A
site location map is provided as Figure l. The Site includes
Frontera Creek from east of Junquito Ward to its entry into the
Caribbean Sea; the 13 industrial properties adjacent to the
creek; the North, Southeast and Southwest Frontera lagoons also
known as the Santa Teresa Lagoons; their associated abandoned
pump stations which were used to keep the lagoons dry for
agricultural purposes and the Ciudad Cristiana housing
development located alongside the creek. Land use in the area
surrounding the site consists of mixed residential, industrial
and wildlife refuge.
The section of Frontera Creek within the study area extends for a
distance of approximately three miles from Route 925 to El
Morrillo, where it enters the Caribbean Sea. It is a small
channelized drainage ditch that varies from 3 to 45 feet in width
and from about 0.3 to 6 feet in depth. The creek channel runs
past the 13 site industries, under Route 3 and then past Ciudad
Cristiana before bisecting the Frontera Lagoons and intersecting .
the Caribbean Sea at El Morrillo.
Downstream of Route 3, in-stream flow is negligible and the creek
consists primarily of stagnant pools. Except for the section
from the pump station to the sea, the entire creek within the
study area flows through a man-made channel, constructed prior to
the 1960s to improve coastal drainage.
The creek runs between three large shallow freshwater lagoons
which are currently owned by the Puerto Rico Department of
Natural Resources (DNR). These lagoons, which cover an area of
approximately 200 acres, are in hydraulic connection under the
creek. In the early 1930s the section of Frontera Creek's
channel from Route 3 to the Santa Teresa pump station was
constructed and the lagoon areas were drained for agricultural
purposes, including sugarcane, coconut and livestock production.
When the drainage pumps located at the Santa Teresa pump station
ceased operations in 1979, the coastal lagoons refilled and now
support an abundant and varied aquatic wildlife community. The
DNR acquired the lagoons in 1984 and the area is now a wildlife
refuge.
The Mandri Canal was originally.constructed to drain the wetlands
north of Route 3, including the Mandri Lagoon. As shown on
Figure 1, the portion of the canal within the study area is on
DNR property and extends from Route 3 to the Santa Teresa pump
station. This canal is approximately 20 feet wide and 20 feet
deep and appears to be a healthy ecosystem as evidenced by an
abundance of wildlife and species diversity. The Mandri Canal
was included in the study area, since it has been alleged
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that, the waters of the canal are in hydraulic connection with the
creek and Frontera lagoons.
According to the 1980 Census, the total population of the
Municipality of Humacao was 51,402.
The Site lies within the Humacao River watershed located on the
southeastern coast of Puerto Rico. Low-lying hills and small
mountains of Cretaceous igneous deposits with steep slopes are
found a short distance inland from the coast. These elevations
comprise the borders of the Humacao River watershed. Frontera
Creek runs parallel to and lies north of the Humacao River.
Frontera Creek runs approximately 3.82 miles from the hills
northwest of Rio Abajo to its outlet in the Caribbean Sea, The
head of the creek originates at an elevation of approximately 230
feet. The creek runs southeast 1.09 miles to Route 925 which
marks the start of the coastal plain at an elevation of around 16
feet above sea level and the edge of the study area. From there
it continues east 2.73 miles to the sea. Frontera Creek drains a
2,540 acre watershed into the sea at a location just north of El
Morillo.
Groundwater occurs in the alluvial aquifer under water table
conditions. Although the alluvial sediments do not have
hydraulic characteristics generally associated with a productive
aquifer, five industrial wells and one agricultural well are
reportedly in use at the site. The Site is underlain by
Quaternary Age alluvial deposits. These deposits consist
primarily of brown and gray clay and silty clay, interbedded with
brown and gray fine to coarse sand. These sediments overlie and
grade into beach deposits near the coast. The alluvial deposits
are underlain by the igneous bedrock.
For the purpose of this document, the Frontera Creek drainage
system is defined as the waters of Frontera Creek, the Frontera
lagoons and the Mandri Canal. The entire system contains
extensive lagoons, mangrove stands, swamps, grasslands, coconut
groves, estuaries and saltwater marshes. The entire lagoon
system covers an area of about 500 acres. It is a nesting ground
for the endangered West Indian whistling duck, brown pelican, as
well as several other species that are considered rare in Puerto
Rico, such as the ruddy duck and the pied-billed grebe.
II. SITE HISTORY AND ENFORCEMENT ACTIVITIES
Industrial wastewaters from industries within the Site were
discharged into the creek from 1971 to 1981. Public concern
about the site arose in 1977 following the death of thirty cows
that grazed in the area. Since that time, the area has been
investigated by EPA, EQB and several industries located in the
vicinity. These investigations confirmed the presence of
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contaminants including mercury in sediments and surface water
samples.
Several industries, including Technicon Electronics, (formerly a
subsidiary of Revlon, Inc.)/ which used mercury in its
manufacturing process, previously discharged their waste water
directly into Frontera Creek. The EQB fined Technicon in June
1978 for this practice. Technicon stopped its mercury discharges
into Frontera Creek in 1978.
As a result of the potential threat to public health, in August
1983, the Frontera Creek Site was included on EPA's National
Priorities List of hazardous waste sites.
From 1978 to 1980, a housing development, Ciudad Cristiana, was
built along Frontera Creek. The community of approximately 500
families began to complain of health problems within a year after
their arrival. In February 1985, the Puerto Rico Department of
Health (PRDOH) sampled the blood and urine of a number of
residents of the community and found elevated levels of mercury.
Soil samples collected by EQB also revealed the presence of
mercury. As .a result of these investigations, the Governor of
Puerto Rico ordered an immediate evacuation of the community.
In March 1985, at the request of PRDOH, EPA, in coordination with
the Agency for Toxic Substances and Disease Registry (ATSDR),
began a Focused Remedial Investigation to assess the problem of
mercury contamination in Ciudad Cristiana. This investigation
included sampling for mercury and lindane in soil, sediments,
water biota and air. The ATSDR evaluation of the data collected
during this investigation and the data previously collected by
EQB concluded that mercury did not present an immediate or
significant health threat to residents of Ciudad Cristiana.
In March 1988, the residents of Ciudad Cristiana submitted
additional biological examination results to ATSDR for review.
ATSDR examined the results of 258 blood tests, 7 urine tests and
37 hair tests. No conclusion could be made by ATSDR regarding
the relationship between these mercury results and environmental
contamination at the Site. Several factors may be responsible
for this including other sources of mercury exposure, sample
contamination and laboratory error.
On October 3, 1986, Revlon, Inc., former parent company of
Technicon, entered into an Administrative Order on Consent with
EPA pursuant to Section 106(a) of the Comprehensive Environmental
Response, Compensation and Liability Act of 1980 (CERCLA) and the
Superfund Amendments and Reauthorization Act of 1986 (SARA). The
Consent Order gave Revlon the opportunity to perform the Remedial
Investigation and Feasibility Study (RI/FS) under EPA's
supervision. Revlon retained Dynamac Corporation to perform the
investigation. EPA's contractor NUS Corp. and EQB's contractor,
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1
IT Corporation, provided oversight throughout the remedial
investigation and collected split samples for independent
testing.
III. HIGHLIGHTS OF COMMUNITY PARTICIPATION
The RI/FS Reports and the Proposed Plan for the Site were
released to the public on July 24, 1991. These documents were
made available at two information repositories maintained at the
Humacao Town Hall and the U.S. Environmental Protection Agency
Caribbean Field Office in Spanish and English. The notice of
availability, for these documents was published in El Nuevo Dia, a
Spanish language newspaper of major circulation, on July 24, 1991
and in the San Juan Star, an English language newspaper of major
circulation, on July 26, 1991. The public comment period was
from July 24, 1991 through September 23, 1991. In addition, a
public meeting was held on August 8, 1991 to present the results
of the RI/FS and the preferred alternative as presented in the
Proposed Plan for the Site. This meeting was announced to the
affected communities by flyers distribution and soundtruck
announcements. At this meeting, representatives of the EPA
presented the Proposed Plan regarding remediation of the Site and
later answered questions and responded to community comments
concerning such Plan and other details related to the RI./FS
reports. Responses to these comments are included in the
Responsiveness Summary, which is appended to this ROD.
IV. SCOPE AND ROLE OF RESPONSE ACTION
This ROD addresses all of the Site mercury contamination in
sediments and soils on the Technicon property. It is the only
operable unit planned for this Site. The response action will
reduce mercury concentrations in these media to levels protective
of human health and the environment.
V.. SUMMARY OF SITE CHARACTERISTICS
Based on sampling and analyses during the RI/FS, EPA has
identified mercury and methylene chloride as the only
contaminants of concern at the Frontera Creek Site.
The RI data indicate that elevated concentrations of mercury
occur primarily in surface soils at Technicon"at locations
historically associated with the storage, use or discharge of
mercury-containing compounds, and in sediments in the Technicon
ditch, which historically received process and sanitary
wastewaters from Technicon's on-site treatment plant. The levels
range from non-detected to 535 ppm in these areas.
The source of the methylene chloride is believed to be limited to
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fugitive and stack air releases from the Squibb facility located
within the Site. It was detected in levels from 180 ppb to 840
ppb. EPA is currently seeking an agreement with Squibb to reduce
the emissions to levels protective of human health and the
environment. This agreement is being sought under the authority
of the Clean Air Act. Therefore, the remedy selection for the
Site is driven by the mercury contamination.
Affected Media
This section summarizes the quantities and types of contamination
found in each area of the Site under consideration.
Technicon Soils
Table. 1 provides a summary of the mercury analytical data from
the RI soil sampling program. The average mercury concentration
in soils is approximately 4 ppm. The highest mercury
concentration is 535 ppm, which was located immediately adjacent
to a small break in a concrete berm surrounding the former raw
materials storage area.
The contaminated area has been defined as 40 feet by 40 feet in
size. Utilizing an average depth of 3 feet, the volume of soils
contaminated above 35 ppm, which is the cleanup goal as
determined by the Risk Assessment, is 180 cubic yards. Figure 2
identifies this area as area 3.
Technicon Ditch Sediments
Table 2 provides a summary of the mercury analytical data from
the RI Technicon ditch sediments sampling program. Average
mercury concentrations in the Technicon ditch are 6 to 7 ppm.
The highest concentrations were 43.2 and 88.5 ppm. In almost all
cases, at sampling locations at which shallow (0"-12") and deep
(12" - 24") samples were taken, mercury concentrations decreased
substantially with increased depth.
Based on the available data, two areas exist within the Technicon
ditch that potentially contain sediment concentrations above the
remedial action objective of 35 ppm of mercury. Area 1 consists
of approximately 200 feet of the Technicon ditch. Utilizing an
average sediment depth of two feet and a average cross section of
15 feet, the total volume of sediments potentially contaminated
above 35 ppm is approximately 220 cubic yards. Area 2 consists
of approximately 100 feet of the Technicon ditch. Utilizing an
average sediment depth of two feet and average cross section of
20 feet, the total potential volume of contaminated sediments
above 35 ppm is approximately 150 cubic yards. Figure 3
identifies these areas.
Unaffected Media
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Ciudad Cristiana Surface Soils
As summarized in Table 3, mercury concentrations in soil samples
collected from Cuidad Cristiana as part of the surface soil
sampling program ranged from 0 to 0.312 ppm with an average
concentration of 0.091 ppm. Mercury concentrations in surface
soils collected as part of the test boring program ranged from 0
to 0.836 ppm with an average concentration of 0.148 ppm. At 63
of the 147 locations where samples were collected, mercury was
either not detected or the concentrations were below the Minimum
Detection Level (MDL) (0.080 ppm).
Soil mercur> concentrations detected at Ciudad Cristiana were all
within the range of values reported to occur naturally in soils.
The results of the sampling for hazardous substances in Ciudad
Cristiana soils revealed that there is no evidence to suggest a
widespread past or present release of Hazardous Substance List
(HSL) chemicals to soils.
Ciudad Cristiana Subsurface Soils
A total of 71 subsurface soil samples were collected for mercury
analysis as part of the subsurface soil sampling program at
Ciudad Cristiana. Results of these analyses are presented in
Table 4.
All but five of the 71 subsurface soil samples collected from the
Cristiana test borings had mercury concentrations either, below
the MDL (0.080 ppm) or contained no mercury. The highest
detected value was 0.236 ppm.
The subsurface investigations indicated that mercury
concentrations in the fill and alluvial sediments underlying
Ciudad Cristiana are also within background ranges. Moreover,
the continuous lithologic monitoring conducted during the
installation of the Cristiana test boring did not identify the
presence of dredge spoils in the fill underlying Cristiana.
Of the 71 subsurface soil samples, 11 samples from 11 discrete
depth intervals were analyzed for HSL parameters. A summary of
the results are presented in Table 5. The results revealed that
there is no evidence of a source of HSL compounds in either the
fill or alluvial sediments underlying Ciudad Cristiana.
Groundwater
Groundwater samples from the study area were tested for total and
inorganic mercury. All samples analyzed were below the 2 ug/1
federal Safe Drinking Water Act Maximum Contaminant Level (MCL)
for mercury with the highest value reported as 0.33 ug/1.
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The data indicate that there is no significant source of mercury
contamination to groundwater from either the industrial area or
Ciudad Cristiana. Results are presented in Table 6.
Potable Water
Two potable water samples were collected from a Cristiana hydrant
and tested for HSL parameters. Results for mercury are presented
in Table 7. HSL data is provided in Table 8. All HSL parameters
tested showed concentrations below all relevant federal MCLs.
Surface Water
Quantifiable concentrations of mercury were defected in only
three of twenty unfiltered surface water samples collected in the
study area. This pattern has been observed historically in
Frontera Creek surface waters, with the highest concentrations
typically observed in the vicinity of the Technicon ditch.
The highest observed concentration was 0.86 ug/1 and was below
the P.R. Water Quality Standard of 1 ug/1. Results are
summarized in- Table 9.
With respect to HSL compounds, the known potential sources of HSL
chemicals within the study area include each of the site
industries, the PRASA wastewater treatment plants at Cristiana
and Villa Palmira, the PRASA pumping station at Ciudad Cristiana,
and the broken sewer pipeline at Cristiana. All of these
potential sources of HSL chemicals historically resulted in the
discharge of wastewaters to Frontera Creek, either directly or
via discharges to the Humacao Industrial Park Water Treatment
Plant (HIPWTP).
Several volatile organic compounds, including acetone, methylene
chloride and methyl isobutyl ketone were detected in Frontera
Creek surface water samples at concentrations in excess of 1,000
ug/1 in an area adjacent to the Squibb facility. Based on the
available data on reported chemical usage and the results of the
industrial soil sampling program, these results may be due to a
point source discharge from Squibb. With respect to inorganic
HSL compounds, the surface water data indicate above background
concentrations of chromium, copper, lead, iron, aluminum, nickel
and vanadium. It is likely that these peak values are
attributable to entrained sediment particles in the unfiltered
surface water sample. Above background concentrations of zinc,
chromium, lead, nickel, potassium and sodium were also found in
the water adjacent to a broken sewer line fixed by PRASA in 1990.
Table 10 provides a summary of average concentrations of HSL
Compounds detected at the Creek.
In general it appears that potentially elevated concentrations of
inorganic HSLs in surface water occur only sporadically and are
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associated with the broken sewer line and the point source
discharge.
Sediments
Sediment samples were collected from depositional areas along
Frontera Creek, Frontera Lagoons, Mandri Canal and Squibb ditch.
Samples were analyzed for mercury and a limited number for HSLs.
Mercury results are summarized in Tables 111, 112, 113. In
Frontera Creek, the highest mercury concentration detected was
2.9 ppm with average concentrations in upstream, midstream and
downstream portions of the Creek estimated at 0.091 ppm, 0.505
ppm and 0.330 respectively. Approximately 90% of the samples
from the Creek had less than 1 ppm of mercury. Lower
concentrations were found in samples from the Frontera Lagoons.
Mercury was not detected in the two samples collected from the
Mandri Canal.
With respect to HSLs, methyl chloride, methylene chloride,
acetone, carbon disulfide and methyl ethyl ketone were the only
volatile organic compounds detected above background
concentrations in sediment. The highest concentrations of these
compounds were found in one lagoon sample. The highest
concentrations at the Creek were detected far downstream of the
most likely sources of these chemicals, which are various
industries within the study area. Furthermore, the physical and
chemical properties of these volatile organic compounds are such
that these same compounds should also be present in surface
water, which they are not, at least at the locations with the
highest alleged sediment concentrations.
Average and peak concentrations for inorganic HSLs found at the
Creek were comparable to background concentrations.
A summary of the HSL data is provided in Table 12
Air
Mercury concentrations measured in air within the study area were
below the National Emission Standard for Hazardous Air Pollutants
(NESHAPS) of 1 ug/m3 which represents an acceptable risk level of
mercury in the air. Also, results were below the Threshold Limit
Value-Time Weighted Average (TWA) value for mercury vapor of 0.05
mg/m3. This represents the TWA concentration for a normal 8-hour
workday to which workers may be exposed without adverse effects.
Air samples collected for the analysis of volatile organic
compounds showed the presence of methylene chloride. The highest
concentrations of methylene chloride (840 ppb) were detected
along Technicon-Squibb fence lines. A summary of the air data is
presented in Table 13.
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Biota
Analytical data fro,n the biota tissue samples indicate that there
is no evidence of significant mercury contamination in flora or
fauna at the site. Mercury concentrations in all samples were
below the Food and Drug Administration level of 1 ppm.
The analytical results for the other HSL parameters indicate that
biota are not being impacted by the site. Positive HSL
analytical results were comparable to background samples.
Results for the biota samples are presented in Table 14 through
Table 15.
VI. SUMMARY OP SITE RISKS
EPA conducted a Risk Assessment of the "no-action" alternative to
evaluate the potential risks to human health and the environment
associated with the Site in its current state and with respect to
future land use. The contaminants of concern were identified
based on their frequency of detection, degree of toxicity,
detection in various media, mobility and prevalence in the
environment. These chemicals are listed in Table 16.
The potential exposure routes identified and evaluated in the
Risk Assessment under current and future land-use scenarios are
presented in Table 17.
The pathways evaluated include:
0 exposure to mercury from dermal contact of contaminated
soils and sediments at the Te:hnicon facility within the
Site.
0 inhalation exposure to methylene chloride released to the
air by stack and/or fugitive air emissions.
The potentially exposed populations under current land use are
workers at the Technicon facility and local residents.
Potentially exposed populations under future land use include
workers and future local residents (adults and children).
Under current EPA guidelines, the likelihood of carcinogenic
(cancer causing) and noncarcinogenic effects due to exposure to
site chemicals are considered separately. It was assumed that
the toxic effects of the site-related chemicals would be
additive. Thus, carcinogenic and noncarcinogenic risks
associated with exposures to individuals were summed to indicate
the potential risks associated with mixtures of potential
carcinogens and non-carcinogens, respectively.
Noncarcinogenic risks were assessed using a hazard index ("HI")
approach, based on a comparison of expected contaminant intakes
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10
and safe levels of intake (Reference Doses). Reference doses
("RfDs") have been developed by EPA for indicating the potential
for adverse health effects. RFDs, which are expressed in units
of milligram per killogram per day (mg/kg-day), are estimates of
daily exposure levels for humans which are thought to be safe
over a lifetime (including sensitive individuals). Estimated
intakes of chemicals from environmental media (e.g., the amount
of a chemical ingested from contaminated drinking water) are
compared with the RfD to derive the hazard quotient (HQ) for the
contaminant in the particular medium. The HI is obtained by
adding the hazard quotients (HQs) for all compounds across all
media. A HI greater than 1 indicates that potential exists for
noncarcinogenic health effects to occur as a result of site-
related exposures. The HI provides a useful reference point for
gauging the potential significance of multiple contaminant
exposures within a single medium or across media. If the HI is
greater than unity as a consequence of summing several hazard
quotients (HQ) of similar value, it would be appropriate to
segregate the compounds by effect and by mechanism of action to
derive separate hazard indices for each group. The RdDs for the
contaminants are presented in Table 18 and teh His are in Table
19.
The HI for potential exposure to adults from noncarcinogenic
site-related mercury via dermal contact with soils (8.1) and
volatile organic compounds (VOC) via air inhalation (3.3) are
above one, suggesting that adverse noncarcinogenic effects are
likely to occur at the Site. Furthermore, the His for a child
under a future residential exposure exceeded 1 (i.e., the mercury
HI was 3.6,1 the VOC HQ was 35).
A concentration of 35 ppm for mercury has been established as the
clean up level for contaminated soils and sediments at the
Technicon facility. This clean-up level will result in a HI of
one. Therefore, a concentration of 35 ppm for mercury will be
protective of human health under all identified exposure routes.
Potential carcinogenic risks were evaluated using the cancer
slope factors developed by the EPA for the compounds of concern.
Cancer slope factors ("SFs") have been developed by EPA's
Carcinogen Risk Assessment Verification Endeavor (CRAVE) for
estimating excess lifetime cancer risks associated with exposure
to potentially carcinogenic chemicals. SFs, which are expressed
in units of (mg/kg-day), are multiplied by the estimated intake
of a potential carcinogen, in mg/kg-day, to generate an upper-
bound estimate of the excess lifetime cancer risk associated with
exposure to the compound at that intake level. The term "upper
bound" reflects the conservative estimate of the risks calculated
from the SF. Use of this approach makes the underestimation of
the risk highly unlikely. The available SFs for the contaminants
of concern are listed in Table 20 and the cancer risk levels are
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11
presented in Table 21.
For known or suspected carcinogens, the USEPA considers excess
upper bound individual lifetime cancer risks of between 10."* to
10"* to be acceptable. This level indicates that an individual
has not greater than a one in ten thousand to one in a million
chance of developing cancer as a result of site-related exposure
to a carcinogen over a 70-year period under specific exposure
conditions at the Site. The cumulative upper bound risk for
adults for all carcinogens at the Site is 1.2 x 10'3 (Cristiana
and local residents) under current land use scenario and 2.0 X
IO'3 under future land use scenario. The cumulative upper bound
risk for children from methylene chloride at the Site under
future land use scenario is 1.1 X 10'3.
Uncertainties
The procedures and inputs used to assess risks in this
evaluation, as in all such assessments, are subject to a wide
variety of uncertainties. In general, the main sources of
uncertainty include:
environmental chemistry sampling and analysis
environmental parameter measurement
fate and transport modeling
exposure parameter estimation
- toxicological data
Uncertainty in environmental sampling arises in part from the
potentially uneven distribution of chemicals in the media
sampled. Consequently, there is significant uncertainty as to
the actual levels present. Environmental chemistry analysis
uncertainty can stem from several sources including the errors
inherent in the analytical methods and characteristics of the
matrix being sampled.
Uncertainties in the exposure assessment are related to estimates
of how often an individual would actually come in contact with
the chemicals of concern, the period of time over which such
exposure would occur, and in the models used to estimate the
concentrations of the chemicals of concern at the point of
exposure.
Uncertainties in toxicological data occur in extrapolating both
from animals to humans and from high to low doses of exposure, as
well as from the difficulties in assessing the toxicity of a
mixture of chemicals. The uncertainties are addressed by making
conservative assumptions concerning risk and exposure parameters
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12
throughout the assessment. As a result, the Risk Assessment
provides upper bound estimates of the risks to populations near
the Site, and is highly unlikely to underestimate actual risks
related to the Site,
Actual or threatened releases of hazardous substances from the
Site, if not addressed by implementing the response action
selected in this ROD, may present an imminent and substantial
endangerment to public health, welfare, or the environment.
Environmental Evaluation
A comprehensive and qualitative environmental assessment was
performed to compare species diversity and abundance in the
Frontera Creek drainages with two control locations.
In general, the Frontera lagoons and the Mandri Canal appear to
represent thriving ecosystems as measured quantitatively by
species diversity and abundance, with healthy populations of
fish, crabs, and water birds compared to control sites. From
this perspective, no negative impacts to these ecosystems
associated with potential hazardous substance releases to
Frontera Creek were detected. .
By comparison, Frontera Creek itself is clearly impoverished in
the number and diversity of species it supports. However, the
general lack of species diversity and abundance in the creek
appears to be attributed to the prevailing low or intermittent
flow conditions, and more importantly to the very low dissolved
oxygen levels recorded in many parts of the creek. Since most,
if not all, industrial discharges to Frontera Creek have beer
stopped for many years, these dissolved oxygen levels are not
likely related to industrial discharges. It is possible that the
low oxygen levels may be attributed in part to the raw sewage
observed flowing into the creek at various times and locations
from the observed PRASA broken sewer line and Ciudad Cristiana
pump station which was intermittently by-passed allowing sewer
flow to enter the creek. The broken sewer line was fixed by
PRASA in 1991.
VII. DESCRIPTION OF REMEDIAL ALTERNATIVES
The goal of the remedial action is to prevent the potential
impacts caused by exposure to mercury from dermal contact with
contaminated sediments and soils within the Technicon facility.
This includes two areas in the Technicon ditch totalling
approximately 370 cubic yards of sediment and one area at
Technicon totalling approximately 180 cubic yards of soil. These
are the only areas throughout the Site with mercury
concentrations exceeding the cleanup level of 35 ppm of
mercury.
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11
The FS focused on the no-action alternative, excavation-removal
alternatives, treatment technologies and a closure alternative
for detailed evaluation. Estimated costs and implementation
times are summarized here from the FS. The time to implement
refers only to the actual construction time and excludes the time
needed to design the remedy and negotiate with the Potentially
Responsible Parties.
Alternative 1: No Action
CERCLA requires that the "No Action" alternative be considered at
every site to provide a baseline of comparison among other
alternatives. Under the No Action alternative, the Site
conditions would essentially remain unchanged as no remedial
action would be implemented. The costs for this alternative are
as follows:
Capital cost: $0
Annual O&M: $0
Present Worth: $0
However, because the Risk Assessment identified an unacceptable
current risk under existing conditions for mercury, some remedial
action is necessary to reduce the risk.
In accordance with Section 121 of CERCLA, remedial actions that
leave hazardous substances at a Site above health-based levels
are to be reviewed at least once every five years to assure that
the remedial action is protective of human health and the
environment. The No Action alternative would have to be reviewed
by EPA at least once every five years.
Alternative 2: Limited Action
Under this approach, no remedial action would be taken to remove,
reduce, or contain the existing contamination in Technicon soils
and sediments. However, measures such as deed and access
restrictions would be implemented in the area in an effort to
prevent trespassing and minimize future intrusive land uses. In
addition, a monitoring program would be implemented to assess
changes in conditions over time and warn of threats to human
health and the environment. The monitoring program will include
soil, sediment and air sampling within the Technicon facility and
sediment sampling at Frontera Creek. For this alternative, a five
year review would be conducted. The time to obtain deed and
access restrictions is 10 months. The costs for this alternative
over a 30-year time period are as follows:
Capital Cost: $124,000
Annual o&M: $ 9,000
Present Worth: $209,000
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11
Alternative 3: Excavation, Removal, and Off-Site Disposal
without Treatment
Under this alternative, approximately 550 cubic yards of soils
and sediments (370 cubic yards from the Technicon ditch and 180
cubic yards from Technicon soils) with concentrations of mercury
above 35 ppm would be excavated for off-site disposal. The
excavated materials would be dewatered, contained, and
transported to a RCRA Subtitle C or D waste facility for
disposal. The materials were tested for TCLP toxicity and were
found not to be a RCRA characteristic waste. However, some
Subtitle D facilities may not accept these materials and
therefore Subtitle D and Subtitle C facilities are included in
the cost evaluation. If necessary, a staging area would be
constructed to provide for temporary storage of containers at the
Site.
Confirmatory soil sampling in the remediated areas would be
performed to verify that mercury concentrations in remaining
materials did not exceed the remedial objective of 35 ppm. The
remediated areas would subsequently be filled and revegetated.
The time to implement (excavate and dispose) this alternative is
12 months, not including the time for design. The costs for this
alternative are as follows:
Capital COSt $562,000' to $730,OOO2
Annual O&M: $0
Present Worth: $562,000' to $730,OOO2
1 If disposed of as a solid waste
2 If disposed of as a hazardous waste
i
Alternative 4: Excavation, Removal, and Off-Site Disposal with
Treatment
This alternative is a variation of the preceding alternative.
All excavated materials would be physically treated with a
stabilizing agent in order to convert the waste to a more
chemically stable form. Such treatment would occur after
shipment to a disposal facility. Although the total volume of
the treated matrix would increase, fixation would improve the
handling characteristics of the waste and reduce the mobility and
toxicity of the mercury. Appropriate confirmatory sampling and
closure procedures would be followed under this alternative. The
time to implement (excavate, treat and dispose) this alternative
is 15 months, not including the time for design. The costs for
this alternative are as follows:
Capital Cost: $722,000' to $1,013,OOO2
Annual O&M: $o
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IS
Present Worth: $722,OOO1 to $1,013,0002
1 If disposed of as a solid waste
2 If disposed of as a hazardous waste
Alternative 5: Excavation Followed by On-site
Solidification/Fixation and Disposal
This alternative consists of excavation followed by physical
fixation and solidification of the contaminated soils and
sediments. Such treatment would reduce the potential for erosion
and release of mercury from the contaminated materials. More
specifically, approximately 550 cubic yards of contaminated
materials with mercury concentrations above 35 ppm would be
excavated, mixed with a fixation/solidification agent and blended
into solid waste blocks. The solid blocks would be disposed of
on-site at a designated area. A low permeability soil would be
placed on top of the disposal area to minimize infiltration. The
disposal and excavated areas would be revegetated to prevent
erosion. Land use restrictions would be required for this
alternative to preserve the integrity of the designated area and .
prevent intrusive (construction) activities. For this
alternative, a five year review would be conducted. The time to
implement (excavate, fix and dispose) this alternative is 16
months, not including time for design. The costs of this
alternative are as follows:
Capital Cost: $461,000
Annual OSM: $0
Present Worth: $461,000
Alternative 6: Excavation Followed by On-site Thermal Treatment
and Disposal
This alternative involves the thermal treatment of contaminated
soils and sediments. Approximately 550 cubic yards of material
with mercury concentrations above 35 ppm would be excavated,
dewatered, and fed to a thermal unit designed to apply sufficient
heat to volatilize and drive off mercury.
Mercury has a relatively low boiling point (375 C) and most of
its compounds decompose into metallic mercury readily upon
heating. The mercury vapors would then be condensed, recovered
and recycled. There is a range of temperatures at which thermal
treatment systems could be operated. At the high end of the
range is incineration. Since the mercury materials at the Site
are highly adsorbed to the soils and sediments (bound in a matrix
configuration) the high end of the range would be the temperature
necessary for the mercury to be separated from the materials.
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16
The optimal operating temperature for the thermal treatment
system, as well as the condensation, recovery and recycling
processes for the mercury vapors, would be decided during design.
Complex technical issues during the design phase relate
principally to the condenser operation and off-gas treatment.
Wastewater generated from dewatering would be pretreated prior to
discharge to a wastewater treatment plant, which would most
likely be Technicon's. The residue from the process would be
backfilled in the excavated area. A low permeability soil cover
would be placed on top and the area revegetated.
Since the source of contamination would be treated and the
residuals left on-site would be below health-based levels, no
land use restrictions would be necessary. The time to implement
(complete excavation and treatment) this alternative is 16
months, not including the time for design. The costs for this
alternative are as follows:
Capital Cost: $1,540,000
Annual O&M: $0
Present Worth: $1,540,000
Alternative 7: On-site Closure without Treatment
Under this alternative, the areas with contaminated sediments and
soils would be contained via appropriate engineering controls
designed to reduce the potential for direct contact with
contaminated materials and to minimize infiltration, migration,
and erosion of the contaminated media. Under this alternative,
the ditch would be diverted around the area with contaminated
sediments and vegetation would be removed. This will prevent the
migration of contaminated sediments into the creek by surface
water erosion.
Upon completion of the above, a geotextile cap (synthetic
impermeable fabric) would be installed over the exposed,
contaminated materials in the ditch to provide additional bearing
capacity and to minimize subsidence and/or settlement.
Subsequently, the ditch would be backfilled with a low
permeability single layer clay liner approximately two feet in
thickness. The cap would be constructed in 6" layers and
compacted to 95 percent density to achieve a permeability of
10"7 cm/sec or less.
In order to mitigate damage to the cap due to wet/dry cycles and
to prevent erosion, the cap would be covered with a 6" topsoil
layer and revegetated. Adequate drainage controls would be
provided along the edges of the cap to collect and direct the
surface runoff to Frontera Creek. Similar procedures would be
implemented to remediate the Technicon soils.
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12
Deed and access restrictions would be implemented in the capped
areas to prevent trespassing and minimize future intrusive land
uses. The time to implement (complete construction) this
alternative is 12 months, not including the time for design. For
this alternative, a five year review would be conducted. The
costs for this alternative are as follows:
Capital cost: $319,000
Annual O&M: $13,000
Present Worth: $442,000
VIII. SUMMARY OF THE COMPARATIVE ANALYSIS OF ALTERNATIVES
In accordance with the National Contingency Plan (NCP), a
detailed analysis of each alternative was performed. The purpose
of the detailed analysis was to objectively assess the
alternatives with respect to nine evaluation criteria that
encompass statutory requirements and include other gauges of the
overall feasibility and acceptability of remedial alternatives.
The analysis was comprised of an individual assessment of the
alternatives against each criterion and a comparative analysis
designed to determine the relative performance of the
alternatives and identify major trade-offs, that is, relative
advantages and disadvantages, among them.
The nine evaluation criteria against which the alternatives were
evaluated are as follows:
Threshold Criteria - The first two criteria must be satisfied
in order for an alternative to be eligible for selection.
1. Overall Protection of Human Healtb and the Environment
addresses whether a remedy provides adequate protection and
describes how risks posed through each pathway are
eliminated, reduced, or controlled through treatment,
engineering controls, or institutional controls.
2. Compliance with Applicable, or Relevant and Appropriate
Requirements (ARARs) addresses whether or not a remedial
alternative would meet all of the applicable or relevant and
appropriate requirements of other Federal and State
environmental statutes and/or satisfy the criteria for
invoking a waiver as set forth in Section 121(a) of CERCLA.
Primary Balancing Criteria - The next five "primary balancing
criteria" are to be used to weigh major trade-offs among the
different hazardous waste management strategies.
3. Long-term Effectiveness and Permanence focuses on any
residual risk remaining at the Site after the completion of
the remedial action. This analysis includes consideration
of the degree of threat posed by the hazardous substances
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remaining at the Site and the adequacy of any controls (for
example, engineering and institutional) used to manage the
hazardous substances remaining at the Site.
4. Reduction of Toxicity, Mobility, or Volume Through Treatment
is the anticipated performance of the treatment technologies
a particular remedy may employ.
5. Short-term Effectiveness addresses the effects of the
alternative during the construction and implementation phase
until the remedial response objectives are met. It also
considers the time required to implement the remedy.
6. Implementability addresses the technical and administrative
feasibility of implementing an alternative including the
availability of various services and materials required
during its implementation.
7. Cost includes estimated capital, and operation and
maintenance costs, both translated to a present-worth basis.
The detailed analysis evaluates and compares the cost of the
respective alternatives, but draws no conclusions as to the .
cost effectiveness of the alternatives. Cost effectiveness
is determined in the remedy selection phase, when cost is
considered along with the other balancing criteria.
Modifying Criteria - The final two criteria are regarded as
"modifying criteria", and are to be taken into account after the
above criteria have been evaluated. They are generally to be
focused upon after public comment is received.
8. State Acceptance reflects the statutory requirement to
provide for substantial and meaningful State and Tribal
involvement.
9. Community Acceptance refers to the community's comments on
the remedial alternatives under consideration. Comments
received during the public comment period, and the EPA's
responses to those comments, are summarized in the
Responsiveness Summary which is appended to this ROD.
The following is a summary of the comparison of each
alternative's strengths and weaknesses with respect to the nine
evaluation criteria.
Overall Protection of Human Health and the Environment
With the exception of Alternative 1 (No Action), and Alternative
2, all alternatives described in this ROD are protective of
public health and the environment. Alternative 2 (Limited
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19
Action) is not likely to protect human health and the environment
because institutional controls would not ensure that people would
nc/c come in contact with the contaminated soils and sediments.
Alternatives 3, 4, 5, 6 and 7 would either eliminate or control
the source of contamination at the Site to provide overall
protection of human health and the environment. Therefore,
Alternatives 1 and 2 will not be discussed further.
Compliance with ARARs
The chemical, action, and location-specific requirements are
provided in Table 22. However, because the remedial action is
limited to the Technicon ditch and facility, which do not have
any sensitive environments within this area, there are no
location-specific ARARs for this remedial action. As noted in
Table 22, there are no chemical-specific ARARs available for
mercury-contaminated soils or sediments. Typically, if such an
ARAR were available, it would establish the acceptable maximum
concentrations of mercury in soils and sediments.
In cases where chemical-specific ARARs are unavailable, CERCLA
requires the 'completion of a site-specific Risk Assessment to
determine concentrations of contaminants in media of concern that
would be protective of public health and the environment.
Accordingly, a baseline Risk Assessment was performed for the
Frontera Creek Site and remedial objectives were established for
mercury in soils and sediments. Alternatives 3 through 7 attain
the remedial action objective of insuring no exposures to mercury
in soils and sediments in excess of 35 ppm.
Potential action-specific ARARs for the various alternatives are
also discussed in Section 3 of the Feasibility Study Report.
Alternatives 3 and 4, incorporating off-site disposal, would be
implemented so as to comply with all applicable RCRA
requirements. Alternatives 5, 6, and 7, which include on-site
remedial actions, would have to be designed and implemented in
accordance with the substantive requirements of any otherwise
applicable permits such as for air emissions.
Long-Term Effectiveness and Permanence
Alternatives 3 and 4, which involve the excavation and off-site
disposal of contaminated materials, offer the highest degree of
long-term effectiveness and permanence by removing the mercury
from the Site down to acceptable concentrations. However, the
extra long-term effectiveness and permanence that Alternatve 4
would provide is not necessary because disposal in a permitted
landfill would be more than adequate. Any potential threats to
human health and the environment will be eliminated. These
remedial actions would provide for unrestricted land use and no
exposure in the area. Under these alternatives, no long-term
monitoring would be required.
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10
Alternative 5 involves the solidification and redeposition of
contaminated soils. Although this is an effective treatment for
metals, co-.itaminants will remain on site and the time period
associated with the long-term effectiveness of this alternative
is uncertain since any future intrusive activity in the disposal
area may originate a release. Therefore this Alternative has
less long-term effectiveness than the full off-site removal or
total destruction of all contaminated soils. Alternative 6 uses
a treatment technology that is more effective in the long term
because the mercury is permanently removed from the soil matrix.
Alternative 7, on-site disposal without treatment would not
implement any permanent treatment technology and is less
effective in the long-term than treatment or off-site disposal in
a permitted facility. Alternative 7 requires long-term
maintenance of the cap to ensure long-term protection of human
health and the environment.
Reduction of Toxicity, Mobility, and Volume Through Treatment
Only Alternative 6 uses a treatment technology. Alternative 3
would reduce the mobility without treatment by removing the
contaminated .soils from the Site, but would not reduce the
toxicity or volume. Alternatives 4 and 5 would reduce the
toxicity and mobility but would increase the volume by the
addition of a stabilization agent. If the mercury can be
effectively removed from the vapor phase, Alternative 6 would
best meet the criterion by reducing the toxicity, volume, and
mobility. Alternative 7 would only reduce the mobility of the
contaminated sediments and soils.
Short-Term Effectiveness
In general, effective alternatives which can be implemented
quickly with little risk to human health and the environment are
favored under this criterion. All of the alternatives, with the
exception of Alternative 6, would take approximately the same
amount of time to implement. Alternative 6 would require an
extensive treatability study to develop the off-gas treatment to
remove the mercury from the gas, thereby increasing the time to
design this remedy. Furthermore, the high temperature treatment
may increase the short term risks to public health and the
environment due to the possible hazard of releasing mercury vapor
into the atmosphere. Alternatives 4 and 5 would also require a
treatability study during design, but this technology is more
proven, thus the time frame would be shorter than for Alternative
6.
Alternatives 3 through 7 include a series of activities that
involve excavation, handling, storage, off-site transportation,
and/or treatment of contaminated media. Consequently, there is
potential for unfavorable short-term health and environmental
impacts. However, these impacts can be mitigated by implementing
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21
Site specific health and safety plans, including the use of
personal protective equipment during implementation. In
addition, since Alternatives 3 and 4 involve the off-site
transfer and disposal of contaminated media, there would be an
increase in traffic in the area. These issues could be
adequately mitigated by developing and implementing appropriate
contingency procedures.
Implementablity
Alternatives 3 and 4 involve the off-site disposal of
contaminated material. These alternatives may pose
implementation problems as a permitted Subtitle D or C facility
would have to be located to accept the material. The treatment
components of Alternatives 4 and 5 use standard technologies and
are implementable from an engineering perspective. However,
Alternative 5 would pose some implementation problems because the
addition of a fixation/solidification agent would increase the
volume of the contaminated material to be disposed of at the
Site. Alternative 6 is the least implementable alternative
because it is uncertain if the mercury can be condensed and
recovered due. to the low levels of mercury contamination found at
the Site.
Cost
These costs are reported on the basis of net present worth so
that all alternatives can be compared on the same basis. These
cost estimates are intended to provide a range of accuracy to
within a +50% to -30% and may change as a result of design and
construction modifications. The least costly alternative is
Alternative 2, limited action, with a present worth cost of
$209,000. Alternative 7, on-site closure without treatment is
the next least costly alternative with a present worth cost of
$442,000. Alternative 6, excavation followed by on-site thermal
desorption and disposal is the most costly alternative with a
present worth cost of $1,540,000.
State Acceptance
The Commonwealth of Puerto Rico Environmental Quality Board
concurs with the selected remedy.
Community Acceptance
All comments submitted during the public comment period were
evaluated and are addressed in the attached Responsiveness
Summary. In general, the community did not support the remedy
because it did not include a remedial action for the soils
located at the Ciudad Cristiana housing development.
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IX. DESCRIPTION OF THE SELECTED REMEDY
Based on the results of the RI/FS Reports and after careful
consideration of all reasonable alternatives, EPA recommends
Alternative 3 as the preferred choice for addressing the
contamination of the Technicon soils and sediments. This
alternative involves:
1) Excavation of 370 cubic yards of mercury-contaminated
sediments in the Technicon ditch.
2) Excavation of 180 cubic yards of mercury-contaminated soils
in the Technicon facility surroundings.
3) Dewatering and containment of excavated material.
4) Off-site disposal of excavated material at a RCRA Subtitle D
or C waste facility.
5) Pretreatment of wastewater generated from dewatering and
discharge to Technicon's wastewater treatment plant, a local
POTW, or an on-Site treatment plant.
6) Performance of confirmatory soil sampling in the remediated
areas to verify that mercury concentrations in residual on-
site materials do not exceed the remedial action objective
of 35ppm.
7) Regrading and revegetating the remediated areas.
X. STATUTORY DETERMINATIONS
1. Protection of Human Health and the Environment
The selected remedy protects human health and the environment by
removing contaminated soils and sediments and eliminating the
risk for exposure. This alternative will attain the remedial
action objective of insuring no exposures to mercury in soils and
sediments in excess of 35 ppm and will comply with all RCRA
applicable requirements for off-site disposal.
2. Compliance with Applicable on Relevant and Appropriate
Requirements of Environmental Laws
A list of ARARs for the selected remedy is presented in Table 23.
Since the remedial action is limited to the Technicon ditch and
facility, which do not have any sensitive environments within
this area, there are no location-specific ARARs for this remedial
action. Also, there are no chemical-specific ARARs available for
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23
mercury-contaminated soils or sediments. Remedial objectives
were established for mercury in soils and sediments based on a
site specific Risk Assessment for the Site insuring no exposures
to mercury in soils and sediments in excess of 35 ppm.
The off-site disposal will be implemented as to comply with all
applicable RCRA requirements.
3. Cost Effectiveness
The selected remedy is cost effective because it has been
demonstrated to provide overall effectiveness proportional to its
costs. This alternative involves a minimal cost due to the
relatively small amount of contaminated soils and sediments
needed to be excavated and disposal of.
4. Utilization of Permanent Solutions and Alternative Treatment
Technologies to the Maximum Extent Practicable
EPA and the Commonwealth of Puerto Rico have determined that the
selected remedy represents the maximum extent to which permanent
solutions and treatment technologies can be utilized in a cost
effective manner for the remediation of the contaminated soils
and sediments at the Technicon facility within the Site. Due to
the minimal amount (550 yds3) of contaminated soils and sediments
at the Site, treatment technologies such as thermal desorption
are impractical because of their very high cost. Furthermore,
the condensation operation of mercury off gases resulting from
thermal desorption represents a complex technical issue that
would require considerable time and effort during the design
phase. Solidification and disposal in a permitted landfill would
not provide any more protection than disposal in a permitted
landfill without solidification. Therefore, it would not be cost
effective to provide this type of treatment before disposal.
The critical decisional role was given to the five balancing
criteria of "long-term effectiveness and permanence", "short-term
effectiveness", "implementability", "cost" and "reduction of
toxicity, mobility, or volume." The balancing criteria are
summarized below to assess their collective impacts on the remedy
selection process. First, the selected remedy offers the highest
degree of long-term effectiveness and permanence by removing the
mercury from the Site to acceptable concentrations at a
relatively minimal cost. Regarding "short-term effectiveness",
the selected remedy presents minor problems by increasing traffic
in the area, but that can be adequately mitigated by developing
and implementing appropriate contingency procedures. Other
options such as thermal desorption increase the short-term risks
to public health and the environment due to the possible hazard
of releasing mercury vapor into the atmosphere. In terms of
"implementability", the selected remedy may pose implementation
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24
problems as a permitted Subtitle D or C facility would have to be
located to accept the material. Other options such as thermal
desorption is the least implementable, since it is uncertain if
the mercury can be condensed and recovered at the low levels of
mercury contamination found at the Site. The "reduction of
toxicity, mobility or volume" will be achieved to some degree by,
without treatment, excavating the contaminated soils and
sediments at the Site, therefore eliminating the mobility of the
waste.
5. Preference for Treatment as a Principal Element
The selected remedy does not satisfy the statutory preference for
treatment because it is impractical to do so and not cost
effective.
Implementation of treatment technologies such as thermal
treatment to treat a minimal amount of the Site waste material
(550 yds3) contaminated with mercury at relatively low
concentrations is not cost effective. Furthermore, thermal
treatment of mercury contaminated wastes at the Site is
impractical, -since it may generate incomplete combustion products.
that are difficult to assess and control, therefore posing a
risk to residents and workers in close proximity to the Site.
Treatment by solidification and then disposal in a permitted
landfill would not provide additional protectiveness and would
not be cost effective.
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APPENDIX A
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HUMACAO
INDUSTRIAL
PARK
NORTH
FRONTERA
LAGOON
SANTA TERESA
SOUTH PUMP STATIO
FRONTERA
LAGOON
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FIGURE 2
SOIL SAMPLING LOCATIONS
AND SOIL REMEDIAL ARE
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FIGURE 3
SEDIMENT SAMPLING LOCATIONS
AND SEDIMENT REMEDIAL AREAS
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APPENDIX B
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Mercury Data for Technicon Soil Sampling Program
Dynamac
Number
ISTECH01A
ISTECH01B
ISTECH01C
ISTECH02A
ISTECH02B
ISTECH02C
ISTECH03A
ISTECH03B
ISTECH03C
ISTECH04A
ISTECH04B
ISTECH04C
ISTECH05A
1STECH06A
ISTECH07A
ISTECH08A
ISTECH08B
ISTECH08C
ISTECH09A
ISTECH10A
ISTECH11A
ISTECH12A
ISTECH13A
ISTECH14A
ISTECH15A
ISTECH16A
ISTECH17A
ETC
Number
BE6187
BE6127
BE6128
BE6179
BE6106
BE6107
BE6180
BE6108
BE6109
BE6181
BE6111
BE6112
BE6183
BE6182
BE6185
BE6184
xBE6125
BE6126
BE6115
BE6116
BE6117
BE6121
BE6122
BE6123
BE6124
BE6113
BE6129
Date
880616
880616
880616
880615
880615
880615
880615
880615
880615
880615
880615
880615
880615
880615
880616
880615
880615
880615
880615
880615
880615
880615
880615
880615
880615
880615
880616
Total Mercurv
Qua! Value
160
ND 0
ND 0
5600
5900
1720
420
BMDL 77
92
1400
1160
1430
9700
535000
260
110
ND 0
ND 0
1150
2900
18300
583
284
827
30600
17400
104
Inorganic Mercury
Qua! Value
108
BMDL 48
BMDL 48
7000
2640
812
423
BMDL 76
ND 0
591
120
MDL
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
-------
Dynamac
Number
ETC
Number Date
Total Mercury
Qual Value
Jnorganic Mercury
Qual Value MDL
IST2CH18A
ISTECH19A
1STECH20A
ISTECHA07
1STECHA16
ISTECHB02
BE6130 880616
BE6131 880616
BE6132 880616
BE6186 880616
BE6114 880615
BE6110 880615
135
BMDL 62
BMDL 69
220
21400
5450
1320
80
80
80
80
80
80
Note: Sample numbers ending with an "A" are 0" to 6" samples.
Sample numbers ending with a "B" are 6" to 18" samples.
Sample numbers ending with a "C are 18" to 36" samples.
-------
Mercury Data for the Technlcon Ditch Sediment Sampling Program
Dynamac
Number
Technicon Ditch
TDSEDCL01A
TDSEDCL02A
TDSEDCL02B
TDSEDCL03A
TDSEDCL04A
TDSEDCL04B
TDSEDCL05A
TDSEDCL06A
TDSEDCL06B
TDSEDCL07A
TDSEDCL08A
TDSEDCL08B
TDSEDCL09A
TDSEDCL10A
TDSEDCL10B
TDSEDCL11A
TDSEDCL12A
TDSEDCL12B
TDSEDCL13A
TDSEDCL14A
TDSEDCL15A
TDSEDCL15B
TDSEDCL16A
TDSEDCL16B
TDSEDCLA05
TDSEDCLA08
TDSEDCLA13
TDSEDCLA16
ETC
Number
BE1879
BE1711
BE1712
BE1713
BE1761
BE1762
BE1714
BE1716
BE1717
BE1718
BE1763
BE1765
BE1719
BE1720
BE1721
BE1722
BE1766
BE1767
BE1723
BE1725
BE1726
BE1727
BE1880
BE1728
BE1715
BE1764
BE1724
BE1881
Date
880509
880506
880506
880506
880506
880506
880506
880509
880509
880509
880509
880509
880509
880509
880509
880509
880509
880509
880509
880510
880510
880510
880510
880510
880506
880509
880509
880510
Total Mercury
Qua! Value
3780
15380
132
908
2420
141
33280
43320
384
404
141
924
26760
447
238
483
706
107
277
109
181
BMDL 60
197
BMDL 55
23660
794
265
176
Inorganic Mercury
Qual Value
2610
18700
110
3530
187
154
188
158
4480
149
MDL
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
-------
TABLE 2
Dynamac ETC
Number Number Date
Sediment Transect A
SEDTRANA1A BE3877 880519
SEDTRANA1B BE3878 880519
SEDTREPA1B BE3879 880519
SEDTRANA2A BE3875 880519
SEDTRANA2B BE3876 880519
SEDTRANA3A BE1855 880519
SEDTRANA3B BE1856 880519
SEDTRANA4A BE1853 880519
SEDTRANA4B BE1854 880519
SEDTRANA5A BE1851 880519
SEDTRANA5B BE1852 880519
Sediment Transert B
SEDTRANB1A BE1840 880519
SEDTRANB1B BE1841 880519
SEDTRANB2A BE1842 880519
SEDTRANB2B BE1843 880519
SEDTRANB3A BE1844 880519
SEDTRANB3B BE1845 880519
SEDTRANB4A BE1846 880519
SEDTREPB4A BE1847 880519
SEDTRANB4B BE1848 880519
SEDTRANB5A BE1849 880519
SEDTRANB5B BE1850 880519
Total Mercuiy
Qual Value
240
BMDL 76
89
183
ND 0
383
133
267
122
166
ND 0
932
178
328
146
11200
1680
199
229
ND 0
1320
BMDL 74
Inorganic Mercury
Qua! Value MDL
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
-------
TABLE 2
Dynamac ETC
Number Number Date
Sediment Transect C
SEDTRANC1A BE1838 880518
SEDTRANC1B BE1839 880518
SEDTRANC2A BE1836 880518
SEDTRANC2B BE1837 880518
SEDTRANC3A BE1834 880518
SEDTRANC3B BE1835 880518
SEDTRANC4A BE1832 880518
SEDTRANC4B BE1833 880518
SEDTRANC5A BE1830 880518
SEDTRANC5B BE1831 880518
Sediment Transect D
SEDTRAND1A BE1816 880517
SEDTRAND1B BE1818 880517
SEDTREPD1B BE1817 880517
SEDTRAND2A BE1814 880517
SEDTRAND2B BE1815 880517
SEDTRAND3A BE1812 880517
SEDTRAND3B BE1813 880517
SEDTRAND4A BE1811 880517
SEDTRAND4B BE1810 880517
SEDTRAND5A BE1808 880517
SEDTRAND5B BE1809 880517
Sediment Transect E
SEDTRANE1A BE1755 880517
SEDTRANE1B BE1795 880517
SEDTRANE2A BE1796 880517
SED-ERANE2B BE1798 880517
Total Mercury
QuaJ Value
293
91
52100
4020
38700
64100
4720
113
230
BMDL 49
1430
184
98
7260
20400
88500
100
7760
7402
1730
128
97
147
114
112
Inorganic Mercury
Qua! Value MDL
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
-------
TABLE 2
Dynamac ETC Total Mercuiy Inorganic Mercury
Number Number Date Qua! Value Qua! Value MDL
Sediment Transect E (continued)
SEDTRANE3A BE1799 880517
SEDTRANE4A BE1800 880517
SEDTRANE4B BE1804 880517 BMDL
SEDTRANE5A BE1805 880517
SEDTRANE5B BE1807 880517
153
169
57
269
836
80
80
80
80
80
Sediment Transect F
SEDTRANF1A
SEDTRANF1B
SEDTRANF2A
SEDTRANF2B
SEDTRANF3A
SEDTRANF3B
SEDTRANF4A
SEDTRANF4B
SEDTREPF4B
SEDTRANF5A
SEDTRANF5B
BE1819
BE1820
BE1821
BE1822
BE1823
BE1824
BE1827
BE1826
BE1825
BE1828
BE1829
880518
880518
880518
880518
880518
8805 18
880518
880518
880518
880518
880518
1520
120
1000
100
960
960
580
113
150
330
230
80
80
80
80
80
80
80
80
80
80
80
Note: Samples ending with an "A" are 0" to 12" sediment samples.
Samples ending with a "B" are 12" to 24" sediment samples.
-------
TABLK 3
Mercury D*t* Suaaary tor Cristiana and Background Surface Soil faaples
(KDL • 80; values la ug/kg)
Parameter/Sample Prograa N NX) N>MDL
Min
Max
Avg*
Total Jforcury - Ciudad Criatl&n*
cess
TB Surf
Total
135
12
147
128
9
137
75
9
84
0
0
0
312
836
836
91
148
96
Total Kercury - Background
CCSSBG(M) 14 11 1
TBBC Surf 550
ISBG Surf 13 13 2
Total 32 29 3
0
BMDL
BMDL
0
80
BMDL
150
150
48
53
67
57
Inorganic Mercury - Ciudad Cristi&na
CCSS
TB Surf
Total
49
13
62
38
6
44
15
5
20
0
0
0
279
717
717
64
94
70
Inorganic Mercury - Background
CCSSBG(M)
TBBG Surf
ISBG Surf
Total
6
5
6
17
3
3
5
11
0
1
0
1
0
0
0
0
BMDL
106
BMDL
106
25
39
55
39
CCSS - Ciudad Cristiana Surface Soil
TB Surf - Test Boring Surface Soil
CCSSBG(M) - Ciudad Cristiana Surface Soil Background
TBBG Surf - Test Boring Background Surface Soil
XSBG Surf - Industrial Soil Background Surface Soil
• Where values are shown as BMDL (below method detection limit) or ND (not
detected), averages are calculated based on estimated concentrations which
are below quantitation limits.
09/12/1990
-------
TABLB 4
Mercury Data Summary
for Cristiaaa and Background Subsurface Soil Saaples
(KDL • 80;value* ia ug/kg)
Paraaeter/Saaple Program N N>0 N>HDL Kin Mix Avg
Total Mercury - Ciadmd Cri*ti*n*
TB Subsurf 71 21 5 0 236 23
Total Xercury - Background
TBBG Subeurf 30 19 2 0 109 34
XSBC Subsurf 971 0 95 47
Total 39 26 3 0 109 37
Inorganic Mercury - Ciudad Cristia^a
TB Subeurf 71 8 2 0 182 9
Inorganic Kercury - Background
TBBC Subeurf 30 9 5 0 261 32
I SBC Subsurf 541 0 90 54
Total 35 13 6 0 261 35
TBBC Subsurf - Test Boring Subsurface Soil
ISBG Subeurf - Industrial Soil Background Subsurface Soil
HI FINAL . . 09/12/1990
-------
TABLE 5
BSL Data fuuury for Ciudad Cristiaa* Subsurface Soil Staples
(XDL » 80; values La ug/kg)
Saaple Prograjit Test Boring Subsurface Soil (TB Subsurf)
Parameter/Saaple Program N K>0 N>MDL
Min
Max
Avg<
Volatile Organic Compound*
ACETONB 11
METHYL KTHYL XETONB 11
XBTHYLKNB CHLORIDE 11
Acid Extrtctableg
2-CHLOROPHENOL 9
PHENOL 9
RCRA Metals
ARSENIC 9
BARIUM 9
CADMIUM 9
CHROMIUM 9
COPPER 9
LEAD 9
SELENIUM 9
SILVER 9
ZINC 9
Other/Miscellaneous Compounds
ALUMINUM
BERYLLIUM
CALCIUM
COBALT
CYANIDE
IRON
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SODIUM
SULFATE (AS SO4)
THALLIUM
VANADIUM
% SOLID
9
9
9
9
9
9
9
9
9
9
9
1
9
9
71
11
2
9
1
1
8
9
4
9
9
8
3
2
9
9
8
9
9
9
9
9
9
9
9
9
1
8
9
71
11
2
9
0
0
0
9
0
8
9
8
0
0
9
9
8
9
6
2
9
9
9
6
9
9
1
0
9
-
26.2
0
0
0
0
0
74,100
0
BMDL
13,000
0
0
0
19,000
5,570,000 25,
0
1,290,000 3,
BMDL
< 500
10,100,000 33,
1,190,000 13,
74,700 2,
BMDL
90,000
210,000 1,
92,8
0
46,000
68
247
45
44.4
BMDL
BMDL
BMDL
402,000
BMDL
9,600
39,000
4,700
NO
BMDL
83,000
800,000
400
480,000
19,000
9,200
000,000
400,000
410,000
3,800
430,000
500,000
92.8
ND
80,000
93.7
94.8
33
20.9
90.4
87.3
417
144,072
96
5,328
26,278
2,431
133
405
46,667
14,790,000
226
2,132,222
10,728
1,194
22,025,555
5,222,778
749,144
2,511
212,222
617,778
92.8
91
67,056
83.8
Based on all samples^with a concentration or estimated concentration
greater than zero. Includes samples whict are listed as BMDL (below method
detection limit) or ND (not detected).
09/12/1990
-------
TABLE 6
Kercurv Data Summary for Orounditater Saaples
(KDL • 0.2; values ia ug/1)
Parameter/Sample- Prograa II N>0 N>MDL
Kin
Max
Avg«
TOTAL MERCURY
CW Ciudad Criatiana 12 4 3
GH Industries 500
GW Background 200
0
0
0
0.33
0
0
0.09
0
0
INORGANIC MERCURY
GW Ciudad Crifltiana 12 10 5
GW Industries 500
GW Background 210
0
0
0
O.S
0
BMDL
0.21
0
0.07
Where values are shown as BMDL (Below Method Detection Limit) or ND (Not
Detected), averages are calculated based on estimated concentrations which
are below quantitation limits.
09/12/1990
-------
TABLE 7
Mercury Data Ruaaary tor Potable Water Saaples
(KDL * 0.2; value* la ug/1)
Par uneter/Sample Program N N>0 N>MDL Min MAX Avg
TOTAL MERCURY
PW 200 0 0 0
INORGANIC MERCURY
PW 100000
09/12/1990
-------
TABLE 8
HSL Data Summary for Potable Water Samples
(values in ug/1)
Parameter/Sample Program M N>0 N>KDL
Kin
Max
Avg«
Sample Program PW
Volatile Organic Compound*
CHLOROFORM 222
DICHLOROBROMOMBTHANE 222
67.9
12.9
69.6
15.4
68.8
14.2
KCRA HotAlt
ARSENIC
BARIUM
CADMIUM
CHROMIUM
COPPER
LEAD
SILVER
ZINC
2
2
2
2
2
2
2
2
2
2
1
1
2
2
1
2
0
2
0
0
2
0
0
2
NO
14
0
0
15
BMDL
0
BMDL
MD
19
NO
ND
20
BMDL
ND
BMDL
0.32
16.5
0.38
2.4
18
2.4
0..74
9.8
Other/Niacell&neouB Compounds
ALUMINUM
BERYLLIUM
CALCIUM
COBALT
CYANIDE
IROH
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SODIUM
VANADIUM
2
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
0
2
0
0
2
2
2
0
2
2
0
720
0
19,200
BMDL
-------
TABLE 8
B8L Data Summary for Surface Hater Samples
(values in ug/1)
Parameter/Sample Progr0 N£MDL
Min
Max
Avg«
VolAti.lt Organic Compound*
ACETONE
SW Upgradient 322
SW Midstream 666
SW Downstream 655
SW Prontera Lagoon* 411
SW Techni.-on Ditch 1 1 1
Total 20 IS 15
0
34.83
0
0
41.4
0
184
2,870
189
8.74
41.4
2,870
135.6
751
76.9
8.74
41.4
347.5
BENZENE
SW Downstream
BMDL
2.65
CARBON PISULPIDE
SW Midstream
SW Downstream
SW Total
6
6
12
1
4
5
0
1
1
BMDL
1.85
1.43
1.43
4.33
4.33
1.43
2.75
2.48
CHLOROFORM
SW Downstream
1,1 DICHLOROETHANE
SW Midstream
SW Downstream
Total
6
6
12
1
1
2
1
0
1
0
0
0
BXDL
17.4
BMDL
17.4
2.24
17.4
3.71
10.56
ZTHYLBEN2EHE
SW Midstream
SW Downstream
Total
6
6
12
2
4
6
1
1
2
0
0
0
BMDL
6.91
BMDL
72.55
2.64
25.94
METHYL ETHYL KETOKE
SW Upgradient 322
SW Midstream 611
SW Downstream 633
Total . 15 6 6
KETHYLENE CHLORIDE
SW Dpgradient 320
SW Midstream 633
SW Downstream 610
SW Prontera Lagoons 432
SW Technicon Ditch 110
Total 20 10 5
0
0
0
0
0
0
0
0
BMDL
0
5.89
21.4
20.2
21.4
BMDL
1,890
BMDL
14.6
BMDL
1,890
5.29
21.4
12.93
11.79
3.46
656.5
99
44
47
200.52
09/12/1990
-------
TABLB 9
Mercury Data Suaoary for Surface Water Saaples
(KDL • 0.2; Yaluss in ug/1)
Parameter/Sample Program • K>0 N>MDL
Kin
Max
Avg*
TOTAL MERCURY
SW Opgradient
SW Midstream
SW Downstream
SW Frontera Lagoon*
SW Technicon Ditch
Total
INORGANIC MERCURY
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
3
6
6
4
1
20
0
3
2
0
1
6
0
3
0
0
1
4
3
6
6
4
1
20
0
2
2
0
1
5
0
2
2
0
I
5
0
0
0
0
BMDL
0
0
0
0
0
3
0
0
0.43
BMDL
0
BMDL
0.43
0
0.43
1.2
0
3
3
0
0.16
0.05
0
0.14
0.07
0
0.12
0.24
0
3
0.26
Where values are shown as BMDL (Below Method Detection Limit) or ND (Not
Detected), averages are calculated based on estimated concentrations which
are below quantitation limits.
09/12/1990
-------
T»BT,B 9
Parameter/Sample Program N KX> N>MDL
Kin
Max
Avg«
Volttllt Organic Coapoundt (continued)
MBTHYL-1SO-BDTYL KETONE
SW Midstream 6
SW Downstreaa 6
Total 12
M-XYLENE
SW Midstream 6
SW Downstream 6
Total 12
2
4
6
2
4
6
2
4
6
1
2
3
0 4,650 3,120
0 220 67.54
0 4,650 1,085.03
0 185 145.5
0 21.2 7.75
0 185 53.67
0+P-XYLEMES
SW Midstream
SW Downstream
Total
TOLUENE
SW Opgradient
SW Midstream
SW Downstream
SW Technicon Ditch
Total
1,1, 1-TRICHLOROETHANE
SW Midstream
flase/Keutral
6
6
12
3
6
6
1
16
2
4
6
3
1
6
1
11
Compounds
BIS ( 2-ETHYLHBXYL) PHTHALATE
SW Midstream 6
SW Downstream 6
Total 12
DI-N-OCTYL PHTHALATE
SW Midstream 6
SW Downstreaa 6
SW Prontera Lagoons 4
Total 16
ISOPHORONE
SW Midstream 6
SW Downstream 6
Total 12
2
1
3
2
4
4
9
2
5
7
1
1
2
0
1
4
1
6
0
0
0
0
0
0
0
0
0
0
0
0
0
BMDL
0
0
5.64
0
0
0
0
0
0
BMDL
0
0
0
0
BMDL 102.1
11.3 4.05
BMDL 36.73
BMDL 2.13
15.9 15.9
19.5 10.29
5.64 5.64
19.5 8.15
BMDL 3.14
BMDL 2.81
BMDL 4.45
BMDL 3.36
BMDL 5.14
BMDL 4.17
BMDL 3.57
BMDL 4.01
BMDL 4.44
BMDL 14.71
BMDL 11.77
09/12/1990
-------
TABLB 10
Parameter/Sample Progran N N>0 N>MDL
Kin
Avg«
Add XxtractaJble Compound*
BENZOIC ACID
SW Downstream
4-MBTHYLPHEHOL
SW Midstream
PHENOL
SW Downstream
RCM K«ttl»
66
BMDL
BKDL
34.36
2.99
12.29
ARSENIC
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
BARIUM
SW Upgradient
SW Midstream
SW Downstream
SW Frootera Lagoons
SW Technicon Ditch
Total
CADMIUM
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
Total
3
6
6
4
1
20
3
6
6
4
1
20
0
1
0
0
0
1
BMDL
BMDL
ND
BMDL
ND
ND
BMDL
9.31
BMDL
BMDL
ND
9.39
5.6
6.52
2.14
4.2
0.58
4.31
3
6
6
4
1
20
3
6
6
4
1
20
3
6
6
4
1
20
56
75
61
120
32
32
133
226
105
145
32
226
96.7
122.9
83.5
130
32
104.5
3
6
6
4
19
2
6
4
3
15
0
0
0
0
0
0
ND
0
0
ND
ND
ND
BMDL
ND
BMDL
0.135
0.3245
0.6708
0.3492
0.3965
CHROMIUM
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
Total
COPPER
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
3
6
6
4
19
3
6
6
1
16
0
1
1
0
2
ND
ND
ND
0
0
ND
34.6
41
ND
41
3.37
9.47
10.84
3.7
8.48
3
6
6
4
1
20
3
6
4
4
1
18
0
1
1
0
0
2
BMDL
BMDL
0
ND
BMDL
0
BMDL
21.5
290
BMDL
BMDL
290
5.23
7.68
74.1
3.18
6.8
20.98
09/12/1990
-------
TABLB 10
Parameter/Sample Program N N>0 N£MDL
Hin
Ma*
Avg«
KCRA K»ttli (continued;
LEAD
SW Upgradient
SV Midstream
SW Downatreaa
SW Technicon Ditch
Total
3
6
6
1
16
3
6
5
1
IS
0
1
1
0
2
BMDL
BMDL
0
NO
0
BMDL
14.45
18
HD
18
2.87
3.71
4.68
0.99
3.68
SELENIUM
SW Downstream 620
SW Frontora Lagoons 410
Total 10 3 0
0
0
0
m
m
ND
0.49
0.9
0.63
SILVER
SW Midstream 610
SW Downstream 610
SW Frontora Lagoons 420
Total 16 4 0
0
0
0
0
NO
BMDL
HO
BMDL
0.021
3.1
0.021
0.79
ZINC
SW Upgradient
SW Midstream
SW Downstream
SW Prontera Lagoons
SW Technicon Ditch
Total
Other/Kiscell&neous Compounds
3
6
6
4
1
20
3
6
6
4
1
20
3
6
5
0
1
15
22
29
BKDL
ND
52
ND
140
190
3,560
BMDL
52
3,560
66.3
69.3
763
5.6
52
263
ALUMINUM
SW Upgradient
SW Midstream
SW Downstream
SW Prontera Lagoons
SW Technicon Ditch
Total
3
6
6
4
1
20
3
6
6
4
1
20
3
6
6
4
1
20
160
98
50.5
100
260
50.5
970
3,275
840
290
260
3,275
587
767
270
173
260
447
ANTIMONY
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
Total
3
6
6
4
19
3
4
2
4
13
0
0
0
0
0
ND
0
0
BMDL
0
ND
ND
BMDL
BMDL
BMDL
1.13
0.9
2.45
2.18
1.6
09/12/1990
-------
Parameter/Sample Program
TABLE 10
NX) N>MDL
Kin
Max
Otb*r/tiltc9llm»ou* Compound t
BERYLLIUM
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoon*
SW Technicon Ditch
Total
CALCIUM
SW Upgradieot
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
COBALT
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
CYANID8
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
IRON
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
MAGNESIUM
SW Upgradient
SW Midstream
SW Downstream
SW Frontera Lagoons
SW Technicon Ditch
Total
3
6
6
4
1
20
3
6
6
4
1
20
3
6
6
4
1
20
3
6
6
4
1
20
3
6
6
4
2
20
3
6
6
4
1
20
fccwatisiuerf;
3
6
6
4
1
20
3
6
6
4
1
20
3
6
6
2
1
18
3
6
6
4
1
20
3
6
6
4
1
20
3
6
6
4
1
20
0
0
0
0
0
0
3
6
6
4
1
20
0
0
0
0
0
0
0
0
0
0
0
0
3
6
6
4
1
20
3
6
6
4
1
20
ND
ND
ND
ND
ND
ND
24,200
24,600
37,800
11,000
13,000
11,000
ND
ND
ND
0
ND
0
< 50
< 50
< 50
< 50
< 50
< 50
2,500
1,100
220
270
2,100
210
6,270
6,690
10,100
69,100
2,400
2,400
ND
BMDL
BMDL
ND
ND
BMDL
26,100
31,500
44,400
42,700
13,000
44,400
BMDL
BMDL
BMDL
BMDL
ND
BMDL
< 50
< 50
< 50
< 50
< SO
< SO
5,700
14,650
3,700
670
2,100
20,100
7,260
8,040
12,900
170,000
2,400
170,100
0.061
0.1605
0.0607
0.0873
0.0032
0.0931
25,233
27,317
40,067
33,325
13,000
31,315
3.933
4. 45
4.23..
4.85
1.3
4.8
< SO
< 50
< SO
< 50
< 50
< SO
4,500
5,842
1,098
403
2,100
2,943
6,887
7,472
11,467
140,525
2,400
34,940
09/12/1990
-------
TABLE
Parameter/Sample Program • N>0 N>MDL
Min
Max
Avg*
Oth»r/Sltc»llasteou* Compound* (continued)
MAWGAKBSj
SW upgradient 333
SW Midstream 666
SW Downstream 666
SW Prontera Lagoons 444
SW Technicon Ditch 111
Total 20 20 20
HICK8L
SW Opgradient 3 1 0
SW Midstream 631
SW Downstream 551
Total 14 9 2
POTASSIUM
SW Opgradient 333
SW Midstream 666
SW Downstream 666
SW Prontera Lagoons 444
SW Technicon Ditch 111
Total 20 20 20
SODIUM
SW Opgradient 333
SW Midstream 666
SW Downstream 555
SW Prontera Lagoons 444
SW Technicon Ditch 111
Total 19 19 19
THALLIUM
SW Opgradient 310
SW Midstream 610
SW Downstream 650
SW Prontera Lagoons 440
SW Technicon Ditch 110
Total 20 12 0
VANADIUM
SW Opgradient 320
SW Midstream 651
SW Downstream 640
SW Prontera Lagoons 440
Total 19 15 1
• Based on all samples with a concentration or estimated concentration
greater than zero. Includes samples which are listed as BMDL (below method
detection limit) or ND (not detected).
1,110
2,250
190
230
520
190
0
0
ND
0
2,100
4,100
2,600
25,900
1,000
1,000
23,800
35,500
53,700
791,000
20,100
20,100
0
0
0
ND
ND
0
0
0
0
ND
0
3,300
4,840
1,340
660
520
4,840
ND
33.1
27
33.1
5,600
5,700
112,000
47,800
1,000
112,000
45,900
80,800
678,500
1,430,000 1
20,100
1,430,000
BMDL
ND
ND
BMDL
ND
BMDL
BMDL
24.45
BMDL
BMDL
24.45
2,260
3,808
632
383
520
1,773
0.047
11.98
6.532
7.629
4,167
4,792
36,417
40,000
1,000
11,200
34,500
50,250
521,040
,180,250
20,100
407,963
2.4
0.77
0.766
1.047
0.41
0.967
2.95
6.29
3.39
3.6
4.53
09/12/1990
-------
TAHt* 11-1
""""
Paxamet«r/Sampl« Program M N>0 M>KDL
Kin
Max
Avg«
Total Xercury - On-«lt« (0-1*"J
FCSBD, Midstream
FCSED, Downstream
FLSBD
SDSBD
TDSBO
SBDTRAH
MCSBD
DRKDGB
Total
25 23 17
31 29 24
23 21 21
888
19 19 19
30 30 30
200
6 5 3
144 135 132
Total Korcury • Background (0-12-)
BGSBD
PCSEO, Opatream
Total
Inorganic Hercury -
FCSED, Midstream
PCSED, Downstream
PLSBD
SDSBD
TDSED
MCSBD
DRBDGB
Total
Inorganic Kercury -
B^SBD
PCSED, Opatream
Total
8 4 2
7 7 6
15 11 8
On-flite (0-12")
987
10 8 8
6 5 4
4 4 3
5 5 5
200
6 2 2
42 32 29
Background (0-12')
400
3 1 0
7 1 0
0
0
0
89
109
97
0
0
0
0
BKOL
0
0
0
0
BMDL
154
0
0
0
0
0
0
2,900
1,508
330
4,020
43,320
88,500
0
119
88,500
134
121
134
1,030
553
153
2,000
18,700
0
89
18,700
0
BHDL
BHDL
SOS
330
153
744
6,668
7,436
0
73
2,657
39
91
63
416
169
90
596
5,125
0
30
813
0
24
10
09/12/1990
-------
IABLB 11-1
Parameter/Sample Program II NX) N>KDL
Kin
Max
Total Mercury - On-ilte (12-24*)
FCSED, Midstream
FCSED, Downstream
FLSED
SDSBO
TDSEO
SBDTRAH
KCSED
Total
Total Mercury - Background (12-24")
13
14
10
4
11
29
2
83
11
12
9
4
10
26
0
72
6
9
7
4
7
23
0
56
0
0
0
80
0
0
0
0
959
2,020
313
93
924
64,100
0
64,100
195
373
118
85
202
3,505
0
1,363
BGSEO
FCSED,
Total
Upstream
3
3
6
3
3
6
0
3
3
Inorganic Mercury - On-site (12-24')
FCSED, Midstream
FCSED, Downatream
FLSED
SDSED
TDSED
MCSED
Total
Inorg&nic Kercvry - Background (12-24*)
BGSED
FCSED,
Total
Upstream
1
1
1
0
0
0
0
0
0
BKDL
83
NO
0
0
0
BKDL
114
114
0
0
0
52
95
74
5
5
2
2
3
2
19
3
2
2
1
3
0
11
2
2
1
0
3
0
8
0
0
BKDL
0
110
0
0
597
1,149
111
BKDL
188
0
1,149
250
287
93
28
162
0
179
0
0
0
BGSED - Background Locations Sediment
DREDGE - Dredge Spoil*
FCSED - Frontera Creek Sediment
FLSED - Frontera lagoons Sediment
KCSED - Kandri Canal Sediment
SDSED - Squibb Ditch Sediment
SEDTRAN - Sediment Transect Study
TDSED - Technicon Ditch Sediment (includes Technicon Tributaries (TDTRIB)
for this table)
Where values are shown as BKDL (Below Method Detection Limit) or NO (Rot
Detected), averages are calculated based on estimated concentrations which
are below quantitation limits.
09/12/1990
-------
TABLE 11-2
Mercury Data Summary for Prontera Lagoons Sediasnt Samples
(NDL » 80; values is ug/kg)
Parameter/Sample Program H M>0 N>MDL
Kin
Max
Avg«
Total Mercury (0-12')
PLSED, North Lagoon
PLSED, Southeast Lagoon
PLSED, Southwest Lagoon
Total
Inorganic Mercury (0-12')
PLSED, North Lagoon
PLSED, Southeast Lagoon
PLSBD, Southweat Lagoon
Total
11
3
9
23
10
2
9
21
10
2
9
21
0
0
85
0
330
115
243
330
159
76
170
153
2
1
3
6
2
0
3
5
1
0
3
4
BMOL
0
90
0
116
0
153
153
86
0
122
90
Total Mercury (12-24*)
PLSED, North Lagoon
PLSED, Southeast Lagoon
FLSED, Southwest Lagoon
Total
Inorganic Mercury (12-24*)
PLSED, North Lagoon
PLSED, Southeast Lagoon
FLSED, Southwest Lagoon
Total
5
1
4
10
4
1
4
9
4
1
2
7
0
97
BMDL
0
313
97
110
313
153
97
81
118
2
2
2
2
1
1
BMDL
BMDL
111
111
93
93
Where values axe shown as BMDL (Below Method Detection Limit) or ND (Not
Detected), averages are calculated based on estimated concentrations which
are below quantitation limits.
09/12/1990
-------
TABU 11-3
Mercury Data Summary for Sediae&t Transect Staples
(KDL • 80; Taints la og/kg)
Parameter/Sample Program V N>0 N>KDL Kin Max Avg«
Teehnlcoa WtcA Total Mercury (0-12*)
SBDTRAN, Transect A 555 166 383 248
SBDTRAH, Transect B 555 214 11,200 2,799
SBDTRAN, Transect C 555 230 52,100 19,209
SBDTRAK, Transect 0 5 5 5 1,430 88,500 21,336
Total 20 20 20 166 88,500 10,898
froatera Creek Total Mercury (0-12*)
SBDTRAN, Transect B 555 97 269 160
SBDTRAN, Transect F 555 330 1,520 878
Total 10 10 10 97 1,520 519
Technicon Ditch Total Mercury (12-24*)
SEDTRAN, Transect A 5 3 3 0 133 68
SEDTKAN, Transect B 543 0 1,680 416
SEDTKAN, Transect C 554 BMDL 64,100 13,675
SEDTRAN, Transect D 555 100 20,400 5,634
Total 20 17 15 0 64,100 4,948
Froatert Creek Inorganic Mercury (12-24*)
SEDTRAN, Transect B 433 BMDL 836 288
SBDTRAN, Transect F 555 100 960 308
Total 988 BMDL 960 299
Where values are shown as BMDL (Below Method Detection Limit) or ND (Not
Detected), averages are calculated based on estimated concentrations which
are below quantitation limits.
09/12/1990
-------
TABiB 12
B87, Data Summary for On-8ite Sediment Samples
(Yalues la tig/kg)
Paraseter/Sample Program
N>0 N>MDL
Mln
Max
Avg«
Organic Compounds (0-12')
1,1,1-TRICHLOROSTHAKB
PCSBD, Midstream 911
ACETOKB
PCSBD, Midstream 977
PCSBD, Downstream 10 88
PLSBD 444
SDSBD 222
TDSBD 222
MCSBD 111
Total 28 24 24
0
47.4
293
107
204
6.75
0
1,160
1,430
2,980
254
288
6.75
2,980
8
326
427.9
1,385.6
180.5
246
6.75
511
BENZEKB
PCSBO, Downstream
CARBON DISULFIDE
PCSBD, Downstream
PLSED
SDSBD
Total
10
10
4
2
16
4
4
1
9
4
3
1
8
0
BMDL
8.73
6.35
BMDL
540
230
8.73
540
3.08
269.95
91
8.73
161
CHLOROBEN2ENB
TDSED
MCSED
Total
2
1
3
1
1
2
0
0
0
0
0
0
BMDL
BMDL
BMDL
0.748
1.26
1.004
BTHYLBENZENB
PCSED, Midstream
BMDL
2.15
METHYL CHLORIDE
PCSED,
PLSBD
Total
Downstream
10
4
14
3
4
7
3
4
7
0
25
0
26.5
1,730
1,730
20.8
507
299
METHYL BTHYL KETOK8
PCSED, Midstream 944
PCSED, Downstream 10 4 4
PLSBD 444
SDSBD 211
TDSED 222
Total 27 15 15
0
0
56.9
79
0
0
232
242
624
79
48
624
164.8
133.6
222
79
43.6
149.8
09/12/1990
-------
IABLK 12
Paramettr/Saaple Program
N
N>0
Volttilt Organic Coapou.idM (0-12*)
MBTHYLZKB CHLORIDE
PCSED, Midstream
PCSED, Downstream
PLSED
SDSED
TDSBD
MCSED
Total
M-ZYLZNES
PCSBD, Downstream
O+P-IYLEK8
PCSED, Downstream
TOLUENE
PCSED, Midstream
PCSED, Downstream
TDSED
MCSED
Total
VINYL ACETATE
PLSEO
TDSED
Total
BAse/yeutra.2 Extract&ble
BEN ZO ( A ) ANTHRACENE
PCSED, Midstream
BEN20(A)PYREyE
PCSED, Midstream
BEN20(B)PLDORANTHENK
PCSED, Midstream
BENZYL ALCOBOL
PLSEO
9
10
4
2
2
1
28
10
10
9
10
2
1
22
4
2
6
2
10
4
2
2
1
21
2
2
1
4
1
1
7
4
1
5
N>MDL
(continued)
2
10
3
2
2
1
20
1
0
1
0
1
0
2
2
0
2
Kin
0
21.7
BMDL
21.2
0
5.28
0
0
0
0
0
0
BKDL
0
0
0
0
Max
11.1
93.5
338
24.4
157
5.28
338
7.53
BMDL
11.5
BKDL
64.8
BMDL
64.8
BMDL
BMDL.
BMDL
Avg.
8.51
46.98
97.16
22.8
133
5.28
56.6
5.3
5.08
11.5
2.6
64.8
3.32
12.9
21.61
2. 95
17.87
Compounds (0-12*)
9
9
9
4
1
2
2
3
0
0
1
0
0
0
0
0
BMDL
BMDL
921
BMDL
430
252
541
265
BIS(2-BTHYLHBXYL) PHTHALATB
PCSED, Midstream
PCSSD, Downstream
Total
CHRYSBNS
9
10
19
6
4
10
0
3
3
0
0
0
BMDL
5,770
5,770
257
2,524
1,164
PCSED, Midstream
BMDL
286
09/12/1990
-------
TABLE 12
Parameter/Sample Program N H>0 N>MDL
Kin
Max
Avg«
B&M»/N9Utr*l ftttracta&l* Compound* (0-12*) (continued)
DI-N-BOTYL PHTHALAT8
PLSBD
MCSED
Total
PLUORANTHZNS
PCSED, Midstream
INPENO(1,2,3-C,D)PYRENK
PCSED, Midstream
PYRENB
PCSED, Midstream
Acid Sictractabl* Compounds
PHENOL
PCSED, Midstream
KCRA He tain (0-12*)
ARSENIC
PCSED, Midstream
PCSED, Downstream
PLSED
SDSED
TDSED
MCSED
Total
BARIUM
PCSED, Midstream
PCSED, Downstream
PLSED
SDSED
TDSED
MCSED
Total
CADH10M
PCSED, Midstream
PCSED, Downstream
PLSED
SDSED
Total
4
1
5
1
1
2
0
0
0
0
109
0
BMDL
BMDL
152
BMDL
BMDL
BMDL
BMDL
152
109
131
394
160
366
39
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
25
9
10
4
2
2
1
28
9
10
4
2
2
1
28
5
10
1
1
17
6
2
4
0
1
0
13
9
10
4
2
2
1
28
0
2
0
1
3
NO
ND
2,600
BMDL
BMDL
BMDL
ND
33,000
5,400
40,000
129,000
78,700
8,300
5,400
0
BMDL
0
0
0
10,000
10,000
14,000
BMDL
9,000
BMDL
14,000
185,000
162,000
195,000
186,000
278,000
8,300
278,000
BMDL
880
ND
610
880
3,990
3,818
8,225
1,250
5,125
1,900
4,344
132,056
82,140
100,138
157,500
178,350
8,300
110,373
143
402
84
610
318
09/12/1990
-------
Parameter/Sample Program N N>0 N>MDL
Min
Max
Avg«
KCU K»t*l* (0-12*) (continued)
CHROMIDK
TCSSD, Midstream
PCSBD, Downstream
rLSSD
SDSBD
TDSBD
MCSEO
Total
COPPER
PCSED, Midstream
PCSBD, Downstream
FLSED
SDSED
TDSEP
HCSED
Total
LEAP
PCSBD, Midstream
PCSED, Downstream
PLSED
SDSED
TDSBD
MCSED
Total
SELENIUM
PCSED, Midstream
PCSED, Downstream
PLSED
TDSBD
Total
SILVER
PCSBD, Midstream
PCSBD, Downstream
SDSBD
Total
ZINC
PCSSD, Midstream
PCSBD, Downstream
PLSBD
SDSSD
TDSED
MCSED
Total
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
9
1
1
1
0
21
9
10
4
2
2
0
27
5,700
BMDL
BMDL
4,600
BMDL
NO
NO
20,000
4,400
30,500
16,000
22,500
BMDL
BMDL
10,400
56,000
7,400
11,000
14,000
ND
56,000
44,000
110,000
57,000
27,000
58,000
BMDL
110,000
8,222
13,180
5,262
7,800
9,025
1,000
9,339
30,889
37,140
39,125
21,500
40,250
1,300
33,239
9
10
4
2
2
1
28
9
10
4
2
2
1
28
7
9
4
2
2
0
24
BMDL
BMDL
3,700
2,600
5,400
BMDL
BMDL
15,000
36,000
12,000
2,700
11,000
BMDL
36,000
7,106
10,620
7,525
2,650
8,200
700
7,952
1
0
0
1
2
0
0
0
0
0
0
0
0
0
2,600
BMDL
BMDL
1,400
2,600
576
243
337
722
44S
0
0
0
0
BMDL
BMDL
BMDL
BMDL
433
370
370
391
9
10
4
2
2
1
28
9
10
4
2
2.
1
28
9
10
4
2
2
1
28
44,000
8,700
31,000
33.000
65,000
4,600
4,600
120,000
200,000
72,000
40,000
160,000
4,600
200,000
84,833
84,670
53,000
36,500
112,500
4,600
75,886
09/12/1990
-------
TABU 12
Parameter/Sample Program M N>0 N>KDL
Hin
Max
Avg«
Otbor/m*ctll*j)ooug Compounds (0-12')
ALUMINUM
FCSED, Midstream
PCSED, Downstream
FLSBD
SDSSD
TOSED
MCSED
Total
AKTIMONY
FCSED, Midatreaa
FLSED
SDSEO
TDSED
Total
BERYLLIUM
FCSED, Midatreaa
FCSED, Downstream
FLSED
SDSED
Total
CALCIUM
FCSED, Midstream
FCSED, Downstream
FLSED
SDSED
TDSED
MCSED
Total
COBALT
FCSED, Midstream
FCSED, Downstream
FLSED
SDSED
TDSED
MCSED
Total
CYANIDE
FCSED, Midstream
FCSED, Downstream
FLSED
SDSED
TDSED
MCSED
Total
9
10
4
2
2
1
28
9
4
2
2
17
9
10
4
2
25
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
4
1
2
1
8
4
10
1
1
16
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
0
0
0
0
0
4
9
0
1
14
9
10
4
2
2
1
28
10
9
1
1
2
0
23
0
0
.0
0
0
0
0
6,760,000
1,200,000
8,280,000
9,750,000
15,400,000
1,400,000
1,200,000
0
a
ND
0
0
0
ND
0
0
0
1,300,000
920,000
940,000
1,600,000
1,590,000
10,800,000
920,000
12,000
BMDL
BMDL
BMDL
10,750
BMDL
BMDL
< 500
< 500
< 500
< 500
< 500
< 500
< 500
21,900,000
30,000,000
22,800,000
14,800,000
43,500,000
1,400,000
43,500,000
BMDL
ND
ND
BMDL
BMDL
470
910
ND
380
910
3,890,000
5,630,000
1,930,000
5,210,000
5,720,000
10,800,000
10,800,000
20,000
30,000
8,800
15,000
22,000
BMDL
30,000
< 500
< 700
< 500
< 500
< 500
< 500
< 700
15,651,111
14,766,000
15,680,000
12,275,000
29,450,000
1,400,000
15,574,642
1,139
1,300
240
5,400
1,467
413
434
11
380
399
2,786,666
2,721,000
1,405,000
3,405,000
3,655,000
10,600,000
2,958,214
16,444
12,980
5,163
10,550
16,375
1,900
12,650
SOO
SSO
500
500
500
500
518
09/12/1990
-------
TABLE 12
Parameter/Sample Program • N>0 N^KDL
Min
Max
Oth»r/Hl*c»ll*neom Compound* (0-12*) (continued)
IRON
FCSBD, Midstream
FCSBD, Downstream
FLSBD
SDSBD
TDSBD
MCSBD
Total
MAGKBSIPM
FCSED, Midstream
FCSBD, Downstream
FLSED
SDSED
TDSBD
MCSED
Total
MANGANESE •
FCSBD, Midetreaa
FCSBD, Downstream
FLSED
SDSED
TDSED
MCSED
Total
NICKEL
FCSED, Midstream
FCSED, Downstream
FLSED
SDSBD
TDSBD
Total
POTASSIUM
FCSED, Midstream
FCSED, Downstream
FLSED
SDSED
TDSBD
MCSED
Total
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
27,700,000
3,000,000
24,700,000
27,700,000
26,250,000
3,200,000
3,000,000
41,500,000
49,000,000
45,700,000
30,400,000
57,200,000
3,200,000
57,200,000
33,744,444
27,200,000
30,162,500
29,050,000
41,725,000
3,200,000
30,039,285
9 2,640,000 9,020,000 5,393,888
10 901,000 6,330,000 3,303,100
4 2,410,000 3,340,000 2,770,000
2 1,650,000 2,670,000 2,160,000
2 4,270,000 7,510,000 5,890,000
1 440,000 440,000 440,000
28 440,000 8,065,000 3,899,857
9
10
4
2
2
1
28
9
10
4
2
2
27
9
10
4
2
2
1
28
9
10
4
2
2
27
9
10
4
2
2
1
28
8
8
1
1
1
19
. 197,000
57,000
79,000
270,000
496,500
17,000
17,000
BKDL
BMDL
0
BMDL
BMDL
0
1,780,000
732,000
191,000
1,050,000
1,550,000
17,000
1,780,000
5,200
12,000
2,100
6,200
4,700
12,000
985,167
344,700
130,000
660,000
1,023,250
17,000
579,179
3,644
6,053
602
3,750
2,725
4,025
9
10
4
2
2
1
26
9
10
4
2
2
1
28
9
10
4
2
2
1
28
190,000
170,000
610,000
160,000
240,000
140,000
140,000
410,000
1,600,000
850,000
250,000
650,000
140,000
1,600,000
303,889
624,000
750,000
205,000
445,000
140,000
479,107
09/12/1990
-------
TABLB 12
Parameter/Sample Program N N>0 N>MDL
Min
Max
Otb»r/Hl*c»llAn»ou* Compound* (0-12*)
SODIUM
PCSBD, Midstream
PCSBD, Downstream
PLSBD
SDSBD
TDSBD
MCSBD
Total
SULPATK (AS S04) (mg/kg)
PCSBD, Midstream
PCSED, Downstream
PLSBD
SDSBD
TDSBD
MCSBD
Total
SULPIDB (AS S) (mg/kg)
FCSED, Midstream
FCSED, Downstream
PLSED
SDSBD
TDSED
MCSED
Total
THALLIUM
FCSED, Midstream
PCSBD, Downstream
PLSBD
SDSBD
MCSBD
Total
TOTAL ORGANIC CARBON (ng/
PCSBD, Midstream
PCSBD, Downstream
PLSBD
SDSBD
TDSBD
MCSED
Total
9
10
4
2
2
1
28
9
10
6
4
5
2
36
9
10
6
4
5
2
36
9
10
4
2
1
26
9)
9
10
6
4
5
2
36
9
10
4
2
2
1
28
9
10
6
4
5
2
36
9
10
6
4
5
2
36
9
9
3
2
1
24
9
10
6
4
5
2
36
9
10
4
2
2
1
28
8
10
6
2
S
1
32
5
S
6
0
3
0
19
0
0
0
0
0
0
9
10
6
4
5
2
36
180,000
180,000
1,900,000
68,000
165,000
570,000
68,000
290
550
1,300
< 250
< 250
< 250
< 250
< 10
< 10
S3
< 10
< 10
< 10
< 10
ND
0
0
ND
ND
0 .
3,565
1,665
41,755
3,980
14,350
3,510
1,665
440,000
3,260,000
4,760,000
520,000
530,000
570,000
4,760,000
3,300
2,100
1,700
5,500
2,900
720
5,500
680
570
3,700
< 10
100
< 10
3,700
ND
ND
ND
ND
ND
ND
57,150
85,650
178,000
37,100
34,050
33,200
178,000
323,333
1,160,000
3,191,250
294,000
347,500
570,000
1,040,285
1,441
1,278
1,533
1,800
1,224
485
1,368
113
121
896
10
31
10
217
124
149
36
121
91
121
23,063
26,464
97,588
13,509
22,936
18,355
35,190
09/12/1990
-------
XABLK 12
Parameter/Staple Program
N>0 N>MDL
Kin
Max
Ot/>er/Jrisc«IJ*j}*ous Compounds (0-12*) (continued)
VANADIUM
FCSBD, Midstream
FCSBD, Downstream
FLSBD
SDSED
TDSBD
MCSED
Total
% SOLID
FCSBD, Midstream
FCSED, Downstream
FLSED
SDSED
TDSED
SEDTRAN
MCSBD
Total
9
10
4
2
2
1
28
25
31
23
8
19
30
2
137
Other/Miscellaneous Compounds
SULFATB (AS 50^) {mg/kg)
FCSED, Midstream
FCSED, Downstream
FLSED
SDSED
TDSED
MCSED
Total
SULFIDB (AS S) (mg/kg)
FCSED, Midstream
FCSED, Downstream
FLSED
SDSED
TDSED
MCSED
Total
S
5
2
2
3
2
19
5
5
2
2
3
2
19
9
10
4
2
2
1
28
25
31
22
6
19
30
2
137
(22-24
S
5
2
2
3
2
19
S
5
2
2
3
2
19
TOTAL ORGANIC CARBON (mg/kg)
FCSED, Midstream
FCSED, Downstream
FLSED
SDSED
TDSED
MCSED
Total
5
5
2
2
3
2
19
5
5
2
2
3
2
19
9
10
4
2
2
1
28
9
10
4
2
2
1
28
9
10
4
2
2
1
28
92,000
9,800
65,000
60,000
75,500
9,000
9,000
115,000
110,000
230,000
95,000
160,000
9,000
230,000
100,222
73,780
112,750
77,500
117,750
9,000
88,939
53.1
25.2
26.7
63.8
44
57.8
83.6
25.2
85.2
90
70.8
91.2
79.4
90.1
85.1
91.2
70.8
58.2
53.3
80.1
70.1
74.8
84.4
66.7
S
5
2
2
3
2
9
S
5
2
2
3
2
19
3
5
2
0
3
0
13
< 250
< 250
1,100
< 250
340
< 250
< 250
2,100
2,300
6,700
< 250
4,100
< 250
6,700
1,026
1,142
3,900
< 250
1,777
< 250
1,314
5
5
2
2
3
2
19
9)
5
5
2
2
3
2
19
S
5
2
2
3
2
19
5
5
2
2
3
2
19
3
2
0
0
0
0
5
5
5
2
2
3
2
19
< 10
< 10
< 10
< 10
< 10
< 10
< 10
3,820
2,850
60,400
3,835
2,835
14,250
2,835
440
870
< 10
< 10
< 10
< 10
870
29,950
187,350
97,000
6,440
4,745
14,900
187,350
180
306
< 10
< 10
< 10
< 10
121
15,024
52,325
78,700
5,138
3,695
14,575
28,663
09/12/1990
-------
TABLE 12
Parameter/Sample Program • N>0 N>MDL
Min
Kajc
Avg«
Oth»r/HlBC»ll&n»out Compound* (12-24*) (continued)
\ SOLID
PCSSD, Midstream
FCSKD, Downstream
FLSSD
SOSBO
TDSSO
SEDTRAN
MCSSO
Total
13
14
10
4
11
29
2
83
13
14
10
4
11
29
2
83
61.2
24.7
28.1
77.4
72.9
62.6
81.2
24.7
82.4
86.4
75.1
86.7
81.2
90.1
81.8
90.1
74
60.6
54.5
82.7
78.9
79.6
81.5
72.6
FCSBD - Prontera Creek Sediment
PLSED - Frontera Lagoons Sediment
SDSED - Squibb. Ditch Sediment
TDSED - Technicon Ditch Sediment; includes Technicon Ditch Tributarias
(TDTRIB) for this table)
SEDTRAN - Sediment Transect
KCSED - Kandri Canal Sediment
Based on all samples with a concentration or estimated concentration
greater than tero. Includes samples which are listed as BMDL (below method
detection limit) or RD (not detected).
09/12/1990
-------
TABUS 13
of Average Analy.te Concentration* Detected
•t Air Saapling Locations
(values in «g/»3)
Station
Number
1
2
3
4
5
6
7
8
9
10
11
Mercury
0.000043
0.000087
0.000031
0.000031
0.000055
0.002223
0.000245
0.000062
0.000111
0.000050
0.000082
Acetone
0.018
0
NA
NA
0.055
0
0.453
0.143
MA
0
0
Methylene
Chloride
0.059
0.033
NA
NA
2.101
0.673
0.841
0.739
NA
0.054
0.039
Bthyl
Benzene
0
0
NA
NA
0.014
0
0.019
0
NA
0
0
Total
Zylene
0
0.047
NA
NA
0.012
0.003
0.039
0
NA
0
0.001
Toluene
0.006
0.012
NA
NA
0.021
0.272
0.029
0.011
NA
0.016
0.008
NA Not Analyzed
09/12/1990
-------
XABU 14
tUrcury Data Suamary for Biota faaplea
(values la «9/kg; NDX. » 10)
Parameter/Sample Program
0MDL
Rang*
Total Mercury
CRABS (WHOLE)
Frontara North Lagoon
Kandri Canal
Boqueron
Roosevelt Roads
3
3
3
3
2
I
1
0
0
0
0
0
34
13
19
0
0-52
0-40
0-56
0
CRABS (BDIBLS)
Frontara North Lagoon
Kandri Canal
Boqueron
Roosevelt Road*
€
6
6
7
2
0
3
0
0
0
o
0
13
0
21
0
0-42
0
0-48
0
SHRIMP (WHOLE)
Frontera North Lagoon
Kandri Canal
Boqueron
Roosevelt Roada
6
3
3
3
4
2
0
0
0
0
0
0
25
26
0
0
0-40
0-48
0
0
TARPON (WHOLS)
Frentera Lagoona
Boqueron*
Roosevelt Roada
3
4
3
3
0
0
0
0
0
37
0
0
0-S6
0
0
TARPON (?ILLBT)
Frontera Lagoona
Kandri Canal
Boqueron
Roosevelt Roada
6
5
8
6
0
0
3
6
6
5
0
3
110
115
17
131
92-144
56-156
0-50
52-238
TARPON (LIVER)
Frenter* Lagoona
Kandri Canal
Boqueron
Roosevelt Roada
TIIAPIA (WHOLE)
Frontera Lagoona
Kandri Canal
Boqueron
Roosevelt Roada
3
1
2
2
3
3
3
3
1
1
0
1
2
1
0
0
0
0
0
0
0
0
0
0
16
56
0
32
27
14
0
0
0-48
58
0
0-48
0-40
0-24
0
0
09/14/1990
-------
XABLB .14
Parameter/Sample Prograa
CKNXDL
Kean
Rang*
Total Jforcory (continued)
TIIAPIA (FILLET)
Frontera Cr*«k* 7
Frontera Lagoons 6
Kandri Canal 6
Boqueron 6
Roosevelt Roads 6
TILATIA (LIVER)
Frontera Lagoons 1
Mandri Canal 1
Boqueron 1
Roosevelt Roads 1
7
5
1
0
1
0
0
0
0
6
0
0
0
0
1
1
0
0
161
46
11
0
9
133
80
0
0
64-460
0-71
0-64
0
0-64
133
80
0
0
LIZARDS (WBOLK1
Kandri Canal 3
Boqueron 3
CALLINULES (MUSCLE)
Frontera Lagoons 5
Boqueron - 5
GALLIKUL2S (LIVER1
Frontera Lagoons 1
Boqueron 1
CATTLE EGRETS (HUSCLBJ
Frontera L-agoons 6
Boqueron 6
CATTLE ECRgTS (LIVER)
Frontera Lagoons 1
Boqueron 1
BIRO EGGS
Kandri Canal 1
1
3
3
0
0
0
1
4
1
0
0
0
2
0
1
0
0
1
0
1
20
37
54
0
160
0
6
48
44
98
0-60
36-40
0-120
0
160
0
0-36
0-132
44
98
09/14/1990
-------
TABU 14
ParaMtsr/Sanple Program
(XNKDL
Man
Rang*
Inorganic
CRABS (WHOLB)
Frontsra Horth Lagoon
Mandri Canal
Boqueron
Roos«vslt Roads
CRABS (BDIBLB)
frontera North Lagoon
Mandri Canal
Boqueron
Roosevelt Road*
SHRIMP (WHOLBj
Frontera North Lagoon
Kandri Canal
Boqueron
Roosevelt Road*
TARPON (WHOLBJ
Frontera Lagoons
Boqueron*
Roosevelt Roads
3
3
3
3
6
6
e
7
6
3
3
3
3
4
3
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0-36
0-36
0
0
0
0
0
TARPON (FILLBT1
Frontera Lagoons*
Kandri Canal*
Boqueron
Roosevelt Roads
TARPON (LIVER1
Frontera Lagoons
Kandri Canal
Boqueron
Roosevelt Roads
6
5
8
6
3
1
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TILAPIA (WHOLB)
Frontera Lagoons*
Kandri Canal
Boqueron
Roosevelt Roads
TILAPIA (FILLET)
Frontera Creek
Frontera Lagoons
Kandri Canal
Boqueron
Roosevelt Roads
3
3
3
3
7
6
6
6
6
0
0
0
0
2
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
19
0
0
0
0
0
0
0
0
0-84
0
0
0
0
09/14/1990
-------
TABLI
Parameter/Sample Prograa • OOttMDL M>MDL Xeaa Rang*
Inorganic Jfweury (continued)
TILAPIA (LIV1R)
Frontera Creek 1 01 480 480
Frontera Lagoons 100 00
Kandri Canal 100 00
Boqueron 100 00
Roosevelt Roads 100 00
LIZARDS (WHOUt)
Kandri Canal 300 00
Boqueron 300 00
GALLINULES (MUSCLE)
Prontera Lagoons 500 00
Boqueron 5 00 0 0
CALLINUUS (LIV8R)
Frontera Lagoons 101 92 92
Boqueron 100 00
CATTLE EGRBTS (MXJSCL8)
Front era Lagoons 600 00
Boqueron 6 00 00
CATTLE EGRETS (LIVER)
frontera Lagoons 100 00
Boqueron 1 1.0 36 36
BIRD EGGS
Kandri Canal 100 00
Due to the limited number of specimens collected, the number of samples
analyzed and numbers of individuals in a composite sample varies by
location (see Table 4-74).
09/14/1990
-------
XABL* 15
BSL Data Suaaary for Biota *aapl«c
(T«!U*C ia ug/kg)
Dynamae
Nuob«r
ITC
Nunbor
Dat*
Lab Qual
Valu*
KDL
BASS/VBOTMLS - bl»(2-Sthylh»xy2)ptithal*t*
CRABS - FRONTSRA NORTH LAGOON (WHOLI - S CRABS)
CF204 BH1314 880227 BNDL
CF220 BH1322 880224 BKDL
CRABS - XANDRI CANAL (WHOLI • 5 CRABS)
CK208 BH1327 880224 BKJL
CRABS - BOQUERON (WHOLX - S CRABS)
C001 BH1312 880222 BXDL
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327 BKDL
C415 BH1331 880328 BKDL
TARPON - BOQUERON (WHOLE • 2 PISH)
X003 BH1329 880324 BMDL
TARPON - BOQUERON (WHOLE - S FISH, COMPOSITE)
X041 BH1326 880324 BKDL
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
Z430 BH1315 680328 BKDL
CALLINULBS - BOQUBRON (LIVER - S GALLINULXS)
M052 BH1330 8&0222 BKDL
BASE/NEQTRAtS - Di-n-octyl phthalat»
203
118
120
197
305
79
335
189
227
177
990
960
980
1,000
990
990
994
990
1,000
1,900
CRABS - FRONTERA NORTH LAGOON (WHOLE - 5 CRABS)
CF204 BH1314 880227 BKDL
136
990
CRABS - MANDRI CANAL (WHOLE - 5 CRABS)
CK207 BH1311 880224 BKDL
CX208 BH1327 880224 BKDL
CM220 BH1336 880225 BKDL
152
175
667
1,000
980
990
CRABS - BOQUBRON (WHOLE - 5 CRABS)
C001 BH1312 880222 BKDL
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C415 BH1331 880328 BKDL
TARPON - FRONTERA LAGOONS (WHOLE - 5 FISH)
Z2S1 BH1325 880226 BKDL
425
130
368
1,000
990
980
09/14/1990
-------
SABLS 15 (continued)
Dynamic
Number
ITC
Dumber
Pat*
L*b Qual
Value
KDL
BASS/MEOTKALS - Dl-n-oct»2 phthal»*-0 (continued)
TARPON - BOO.OKRON (WHOLK - 2 FISH)
X003 BB1329 880324
Z014 BH1324 880324
BMDL
TARPON - BOQUKRON (WHOLE - 1 FISH)
X040 BH1328 880324
TARPON - BOQUKROH (WHOLK - 5 FISH, COMPOS IT*)
X041 BH1326 880324 BKDL
GALLINULES - BOQOBRON (LIVER - 5 GALLINULES)
M052 BH1330 880222 BKDL
ACID EXTMCTABLSS - Bemoic
CRABS - HAKDRI CANAL (WHOLK - 5 CRABS)
CK207 BH1311 880224
BKDL
TARPON - FRONTERA LAGOONS (WHOLK - 5 FISH)
X209 BH1318 880226 BKDL
X220 BH1321 880227 BKDL
X227 8B1320 880226 BKDL
TARPON - BOQUERON (WHOLK - 2 FISH)
X003 BH1329 880324
BKDL
TARPON - BOQUZRON (WHOLK - 5 FISH, COMPOSITl)
X041 BH1326 880324 BKDL
TARPON - ROOSEVELT ROADS (WHOLK - S FISH)
X417 BH1332 880326 BKDL
X430 BH1315 880328 BKDL
GALLINULES - FRONTKRA LAGOONS (LIVER - 5 GALLINULBS)
K053 BH1317 880225 BKDL
CATTLK EGRETS - BOO.UERON (LIVER - 6 CATTLE BGRBTS)
M050 BB1319 880222 BKDL
ACID SXTRACTABLSS - 2,4,6-Trichlorophenol
TARPON - ROOSEVELT ROADS (WHOLK - S FISH)
X430 BB1315 880328 BKDL
1,280
490
1,140
723
110
1,810
854
980
658
111
165
102
575
1,890
882
127
990
980
990
990
1,900
5,000
50,000
50,000
50,000
5,000
4,900
5,000
5,000
100,000
100,000
1,000
09/14/1990
-------
ZABU
-------
ZABLK 15 (coatiau*d)
Dynamac
Numb«r
ETC
Nuabcr
D»t«
L*b Qual
Valu*
KDL
RCRA. METALS - ArM/ilc (continued)
CRABS -
C001
COOS
C026
CRABS -
C411
C415
C418
TARPON -
Z209
X251 REP
X220
X227
TARPON -
X003
X014
BOQUBRON (WHOLE
• BH1312
BB1313
BH1335
ROOSBVXLT ROADS
BH1334
BH1331
BH1333
- 5 CRABS)
860222
880323
880325
(WHOLE - 5 CRABS)
880327
880328
880328
BMDL
ND
ND
HO
3,800
2,500
4,100
390
310
310
2,000
2,000
10,000
2,000
2,000
2,000
FRONTBRA LAGOONS (WHOLE - 5 FISH)
BH1318
BR1325
BH1321
BH1320
BOQUERON (WHOLE
BH1329
BH1324
880226
880226
880227
880226
• 2 FISH)
880324
880324
ND
ND
ND
ND
BMDL
ND
160
190
270
190
700
39
2,000
2,000
2,000
2,000
2,000
2,000.
TARPON - BOQUERON (WHOLE - 1 PISH)
X040 BH1328 880324 ND 39 2,000
TARPON - BOQUERON (WHOLE - 5 FISH, COMPOSITE)
X041 BH1326 880324 ND 230 2,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326 BMDL 990 4,000
Z417 BH1332 880326 BMDL 580 2,000
X430 BH1315 880328 BMDL 620 2,000
GALLINULBS - FRONTERA LAGOONS (LIVER - 5 CALLINVLES)
K053 BH1317 880225 ND 78 2.000
GALLINULES - BOQOSRON (LIVER - 5 GALLINULBS)
M052 BH1330 880222 ND 39 2,000
CATTLE EGRETS - FRONTERA LAGOONS (LIVER - 6 CATTLE EGRETS)
KOS1 BH1316 880225 ND 50 2,000
CATTLE EGRETS - BOQUERON
LIVER - 6 CATTLE EGRETS)
M050 BH1319 880222 ND 39 2,000
09/14/1990
-------
XABLX 15 (continued)
Dynamac BTC
Humb«c Number Date Lab Qual Valu* KDL
RCRA HETALS - Barium
CRABS - FRONTSRA NORTH LAGOON (WHOLE • 5 CRABS)
CF203 BB1323 880225 170,000 4,000
Cr204 BH1314 $60227 250,000 4,000
CF220 BH1322 880224 72,000 4,000
CRABS - MANDRX CANAL (WHOLB - 5 CRABS)
CK207 BH1311 880224 140,000 4,000
CH208 BH1327 880224 210,000 4,000
CM220 BH1336 880225 250,000 4,000
CRABS - BOO.OBRON (WHOLB - 5 CRABS)
C001 BB1312 880222 83,000 4,000
COOS BH1313 880323 62,000 4,000
C026 BH1335 880325 8,700 4,000
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327 7,900 4,000
C415 BH1331 880328 9,500 4,000
C418 BH1333 880328 8,400 4,000
TARPON - FRONTBRA LAGOONS (WHOLB - 5 FISH)
X209 BR1318 880226 4,800 4,000
X251 REP BH1325 880226 BXDL 3,800 4,000
X220 BH1321 880227 BMDL 1,500 4,000
X227 BH1320 880226 9,400 4,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326 NO 180 4,000
ROM METALS - Cadmitia
CRABS - BOQOERON (WHOLE - 5 CRABS)
C026 BH1335 880325 BMDL 140 400
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BR1334 880327 BKDL 100 400
CALLINULBS - FRONTERA LAGOONS (LIVER - 5 GALLXNULES)
M053 BB1317 880225 NO 54 400
CATTLE EGRETS - FRONTERA LAGOONS (LIVER - 6 CATTLE EGRETS)
M051 BH1316 880225 NO 45 400
RCRA METALS - Chroaivm
CRABS - FRONTBRA NORTH LAGOON (WHOLB - 5 CRABS)
CF203 BB1323 880225 ND 39 2,000
CF204 BH1314 880227 BMDL 1,000 2,000
CF220 BH1322 880224 BKDL 1,500 2,000
09/14/1990
-------
15
Dynastc ITC
Number Nuab«r Oat* L«b Qu*l V«lu« KDL
JtCJU MSTALS - Chroaiua (continued)
CRABS - MANDRI CANAL (WHOLE - 5 CRABS)
CM207 BH1311 880224 BMDL 740 2,000
CK208 BH1327 880224 BMOL 1,800 2,000
CX220 BH1336 880225 BMDL 1,400 2,000
CRABS - BOQUBRO* (WHOLE - 5 CRABS)
C001 BB1312 880222 BtfDL 1,100 2,000
COOS BH1313 880323 BMDL 1,200 2,000
C026 BB1335 880325 BHDL 1,600 2,000
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327 BMDL 1,600 2,000
C415 BH1331 880328 BMDL 700 2,000
C418 BH1333 880328 BMDL 520 2,000
TARPON - FRONT8RA LAGOONS (WHOLK - 5 FISH)
Z209 BH1318 880226 BMDL 920 2,000
X251 REP BH1325 880226 BMDL 870 2,000
X220 BH1321 880227 109 350 2,000
X227 BH1320 880226 BMDL 1,200 2,000
TARPON - BOQUZRON (WHOLE - 2 FXSB)
X003 BB1329 880324 BMDL 680 2,000
X014 BH1324 880324 ND 280 2,000
TARPON - BOQUERON (WHOLE - 1 FISH)
X040 BH1328 880324 BMDL 480 2,000
TARPON - BOQUERON (WHOLE - 5 7ISB, COMPOSITE)
X041 BH1326 880324 BMDL 480 2,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326 BMDL 1,400 2,000
X417 BR1332 880326 BMDL 700 2,000
X430 BH1315 880328 BMDL 1,600 2,000
GALLIKULES - FRONTBRA LAGOONS (LIVER • 5 GAIXrWOLBS)
M053 BH1317 880225 BMDL 1,200 2,000
CATTLE EGRETS - FRONTERA LAGOONS (LIVER - 6 CATTLE EGRETS)
K051 BR1316 880225 BMDL 940 2,000
CATTLE EGRETS - BOQUERON (LIVER - 6 CATTLE BGRZTS)
M050 BH1319 880222 BMDL 480 2,000
09/14/1990
-------
TABtl 15 (eoatinuftd)
Dynaoac
1TC
Nuab«r
Dat«
Lab Qual
Value
KDL
ftCRA XZTALS - Copper
CRABS - FRONTERA HORT8 LAGOON (WBOLB • S CRABS)
CF203 BH1323 88022S
C7204 BH1314 880227
CP220 BB1322 880224
CRABS - MANDRI CANAL (WHOLE - 5 CRABS)
CM207 BH1311 880224
CM208 BH1327 880224
CK220 BH1336 880225
CRABS - BOQUBRON (WHOLZ - 5 CRABS)
C001 BH1312 880222
C008 BH1313 680323
C026 BH1335 880325
CRABS - ROOSEVELT ROADS (WHOLE • 5 CRABS)
C411 BK1334 880327
C41S BH1331 880328
C418 BH1333 880328
TARPON - FRONTERA LAGOONS (WHOLZ - 5 FISH)
Z209
X251 REP
X220
X227
TARPON -
X003
X014
TARPON -
X040
TARPON -
X041
TARPON -
X410
X417
X430
BH1318
BH1325
BH1321
BH1320
BOQUERON (WBOLB
BH1329
BH1324
BOQUBRON (WHOLE
BH1328
BOQUERON (WHOLE
BH1326
ROOSEVELT ROADS
BH1310
BB1332
BH131S
880226
880226
880227
880226
- 2 F2SB)
880324
880324
- 1 FISB)
880324
BMDL
BMDL
BMDL
BKDL
BMDL
BMDL
BMDL
- S FISH, COMPOSITE)
880324 BKDL
(WHOLE • 5 FISB)
880326
880326
880328
BMDL
BMDL
BMDL
GALLINULBS - FRONTERA LAGOONS (LIVER - 5 GALLXNULES)
HOS3 BH1317 880225
GALLINT7LES - BOQUEROK (LIVER - 5 GALLINULSS)
M052 BH1330 880222
15,000
26,000
22,000
12,000
24,000
10,000
14,000
18,000
11,000
10,000
8,600
7,000
1,100
680
970
960
820
1,300
1,300
750
600
460
890
10,000
3,100
CATTLE EGRETS - FRONTSRA LAGOONS (LIVER - 6 CATTLE EGRETS)
KOS1 BH1316 . 880225 8,100
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
09/14/1990
-------
ZABLB 15 (eeetiau«d)
Dynamac BTC
Kunb«r Muab«r D*t« Lab CAial Value KDL
OTHER/HiSCSLLAHBOOS - Aluminum (continued)
CRABS '- KANDRI CANAL (WHOLE - 5 CRABS)
CM207
CX208
CK220
CRABS
C001
COOS
CO 2 6
CRABS
C411
C415
C418
BBI311
BB1327
BB1336
- BOQCBRON (WHOLE
BH1312
BH1313
BB1335
- ROOSEVELT ROADS
BB1334
BH1331
BH1333
880224
880224
88022S
- 5 CRABS)
880222
880323
88032 S
(WHOLE - 5 CRABS)
680327
880328
880328
TARPON - PRONTBRA LAGOONS (WHOL1 - 5 FISH)
Z209 BB1318 880226
X251 REP BB1325 880226
TARPON
Z003
Z014
TARPON
Z410
Z417
Z430
- BOQUBRON (WHOLE
BH1329
BH1324
- ROOSEVELT ROADS
BH1310
BH1332
BH131S
- 2 FISH)
880324
880324
(WHOLE - S PISH)
880326
880326
880328
BXDL
BXDL
BXDL
BXDL
ND
NO
BXDL
ND
ND
BXDL
ND
GALLINULBS - PRONTERA LAGOONS (LIVER - S GALLINULKS)
N053 BH1317 880225 BXDL
GALLZNULES • BOQUBRON (LIVER - 5 GALLINULBS)
M052 BHI330 880222
CATTLE
MOS1
CATTLE
M050
BGRBTS - PRONTERA
BH1316
EGRETS - BOQUERON
BRI319
LAGOONS (LIVER - 6
880225
ND
CATTLE EGRETS)
BXDL
(LIVER - 6 CATTLE EGRETS)
880222 BMDL
26,000
15,000
9,000
51,000
49,000
91,000
27,000
4,200
4,600
1,400
2,000
5,700
640
1,200
7,500
41
6,900
1,100
8,200
6,800
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
OTHER/HISCELIMIEOOS - Antimony
CRABS - PRONTBRA NORTH LAGOON (WHOLE - 5 CRABS)
CF204 BH1314 880227 BXDL 7,400 12,000
CP220 BH1322 880224 . BXDL 6,100 12,000
09/14/1990
-------
15 (oostiaued)
Dynamic BTC '
Number Number Date Lab Qual Value XDL
KCRA HETALS - Copper (continued;
CATTLI BOUTS - BOQCERON (LIVKR - 6 CATTLE BCRBTS)
K050 BH1319 880222 6,400 2,000
JtCJU HETALS - Lead
CRABS • FRONTBRA NORTH LAGOON (WHOLE - 5 CRABS)
CF203 BH1323 880225 KD 130 15,000
CF204 BH1314 880227 BXDL 470 1,000
CP220 BH1322 880224 KD 130 15,000
CRABS - MANDRI LAGOONS (WHOLE - 5 CRABS)
CX207 BH1311 880224 NO 170 1,000
CK208 BH1327 880224 NO 35 15,000
CM220 BH1336 880225 BHDL 400 1,000
CRABS - BOQUERON (WHOLE - 5 CRABS)
C001 BH1312 880222 BKDL 240 1,000
C008 BH1313 880323 BMDL ' 200 1,OOO
C026 BH1335 880325 ND 130 15,000
CRABS - ROOSEVELT ROADS (WHOLE - S CRABS)
C411 BH1334 880327 ND 380 15,000
C41S BH1331 880328 ND 180 15,000
C418 BH1333 880328 ND 730 15,000
TARPON - FRONTBRA LAGOONS (WHOLE - 5 FISH)
Z209 BH1318 880226 ND 130 15,000
Z251 REP BH1325 880226 ND 780 15,000
Z220 BH1321 880227 ND 85 15,000
Z227 BH1320 880226 ND 85 15,000
TARPON - BOQUERON (WHOLE - 2 FISH)
Z003 BH1329 880324 ND 35 1S.OOO
Z014 BH1324 880324 ND 35 15,000
TARPON - BOQUERON (WHOLE - 1 FISH)
Z040 BH1328 880324 ND 85 15,000
TARPON - BOQUERON (WHOLE - 5 FISH, COMPOSITE)
Z041 BH1326 880324 ND 85 15,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
Z410 BH1310 880326 ND 170 1,000
Z417 BH1332 880326 ND 85 15,000
Z430 BH1315 880328 ND 140 l.OOO
CALLINULBS - FRONTERA LAGOONS (LIVER - 5 GALLINULES)
M053 BH1317 880225 ND 230 15,000
09/14/1990
-------
XAHLX 15 (coatiau*d)
Dynamic KTC
Number Number Date L*b Qual Value XDL
KCRA METALS - £*ad (continued)
GALLINULBS - BOQUBRON (LIVER - 5 GALLINOLBS)
M052 BB1330 880222 ID 180 15,000
CATTLB BGRETS - FRONTBRA IAGOONS (LIVBR > 6 CATTLB BGRBTS)
M051 BB1316 880225 BXDL 270 1,000
CATTLB EGRETS - BOQOBRON (LIVBR -6 CATTLB BGRSTS)
M050 BB1319 880222 KD 480 15,000
RCRA METALS -
CRABS - FRONTBRA NORTH LAGOON (WHOLB - 5 CRABS)
CP203 BR1323 880225 ND 1 1,000
CP204 BH1314 880227 KD 80 1,000
CF220 BH1322 880224 ND 130 1,000
CRABS - KANDRZ CANAL (WHOLB - 5 CRABS)
CM207 B81311 880224 ND 6.8 1,000
CK208 BB1327 880224 ND 130 1,000
CM220 BH1336 880225 ND 370 2,000
CRABS - BOQUBRON (WHOLB - 5 CRABS)
C001 BH1312 880222 ND 80 1,000
C026 BH1335 880325 ND 130 1,000
TARPON - FRONTR2A LAGOONS (WHOLB - 5 FISH)
X209 BH1318 880226 ND 1 1,000
X2S1 REP BB1325 880226 ND 63 1,000
X220 BH1321 880227 ND 87 5,000
X227 BB1320 880226 ND 510 5,000
TARPON - BOQ.TCRON (WHOLB - 2 FISH)
X014 BB1324 880324 ND 510 5,000
TARPON - BOQUKRON (WHOLB - 1 FXSB)
X040 BB1328 880324 ND 87 5,000
TARPON - ROOSBVBLT ROADS (WHOLB - 5 FXSB)
X410 BB1310 880326 ND 6.8 1,000
X417 BH1332 880326 ND 87 5,000
GALLINULES - FRONTBRA LAGOONS (LIVER - 5 GALLXNULES)
M053 BB1317 880225 ND 510 5,000
GALLXNULBS - BOQUERON (LIVER - 5 GALLXNULBS)
H052 BB1330 880222 ND 930 5,000
CATTLB BGRBTS - FRONTERA CREEK (LIVER - 6 CATTLB EGRETS)
M051 BB1316 880225 1,200 1,000
09/14/1990
-------
Z&BLZ 15 (coatiaucd)
Dyntaac
Numb«r
ITC
D*t«
Lab Qual
Valu«
KDL
RCM HBTALS - Selenlua
CATTLE EGRETS - BOQUERON (LIVER - 6 CATTLE EGRETS)
M050 BB1319 680222 KD
jRCJU HBTALS - Silver
CRABS - FRONTBRA NORTH LAGOON (WHOLE - S CRABS)
CF220 BB1322 680224 BKDL
CRABS - KAKDRI CANAL (WHOLE - 5 CRABS)
CX208 BH1327 880224
CK220 BH1336 88022S
CRABS - BOQUERON (WHOLE - 5 CRABS)
C001 BH1312 880222
C026 BH1335 880325
CRABS - ROOSBVBLT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327
510
460
BKDL
TARPON - FRONTBRA LAGOONS (WHOLE - 5 FISH)
X209 BH1318 880226 ND
TARPON - BOQUERON (WHOLE - 2 FISH)
X003 BH1329 880324 KD
X014 BH1324 880324 ND
TARPON - BOQUERON (WHOLE - 1 FISH)
X040 BH1328 880324 BKDL
TARPON - ROOSBVSLT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326 ND
X430 BB131S 880328 ND
GALLINULES - FRONTBRA LAGOONS (LIVER - S GALLXNULBS)
K053 BH1317 880225 ND
RCRA KBTALS - ZifiC
CRABS - FRONTERA NORTH LAGOON (WHOLE - 5 CRABS)
CF203 BR1323 880225
CF204 BH1314 880227
CF220 BH1322 880224
CRABS - KANDRI CANAL (WHOLE - 5 CRABS)
CK207 BH1311 880224
CK208 BH1327 880224
CM220 BH1336 880225
920
260
260
330
530
200
28,000
28,000
41,000
25,000
29,000
37,000
5,000
2,000
BKDL
BKDL
ND
BKDL
590
590
390
850
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
3.6 2,000
200 2,000
2,000
4,000
4,000
4,000
4,000
4,000
4,000
09/14/1990
-------
TABLE 15 (coatiau*d)
Dynamic ETC
Number Ruab«r D«t* Lab fr*l V»lu« KDL
KCKA KETXLS - tine (continued)
CRA*>S - BOQUERCN (WHOLE • 5 CRABS)
C001 BH1312 880222 24,000 4,000
COOS BH1313 880323 32,000 4,000
C026 BH133S 880325 30,000 4,000
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327 26,000 4,000
C415 BH1331 880328 30,000 4,000
C418 BH1333 880328 21,000 4,000
TARPON - FRONTERA LAGOONS (WHOLE - 5 FISH)
Z209 BH1318 880226 17,000 4,000
Z251 REP BH1325 880226 15,000 4,000
Z220 BH1321 880227 20,000 4,000
Z227 BH1320 880226 22,000 4,000
TARPON - BOQUERON (WHOLE - 2 FISH)
Z003 BH1329 880324 21,000 4,000
Z014 BH1324 880324 13,000 4,000
TARPON - BOQUERON (WHOLE - 1 FISH)
Z040 BH1328 880324 21,000 4,000
TARPON - BOQUERON (WHOLE - S FISH, COMPOSITE)
Z041 BH1326 880324 12,000 4,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
Z410 BH1310 880326 36,000 4,000
Z417 BH1332 880326 27,000 4,000
Z430 BH1315 880328 24,000 4,000
GALLINULES - FRONTERA LAGOONS (LIVER - 5 GALLINULBS)
M053 BH1317 880225 35,000 4,000
GALLINULES - BOQUBRON (LIVER - 5 GALLINULBS)
K052 BH1330 880222 36,000 4,000
CATTLE EGRETS - FRONTERA LAGOONS (LIVER - 6 CATTLE EGRETS)
M051 BH1316 880225 39,000 4,OOO
CATTLE EGRETS - BOQUBRON (WHOLE - 6 CATTLE EGRETS)
MOSO BH1319 880222 . 26,000 4,000
OTHER/HISCELIANEOOS - Aluminum
CRABS - FRONTERA NORTH LAGOON (WHOLE - 5 CRABS)
CF203 BH1323 88022S 34,000 20,000
CF204 BH1314 880227 26,000 20,000
CF220 BH1322 880224 33,000 20,000
09/14/1990
-------
15 (continual)
BTC
Number Number D»t« L»b Qu*l V«lu« KDL
OTHSK/KISCEUANBOOS - Antimony (continued)
CRABS
CM207
CM208
CM220
CRABS
C001
COOS
C026
CRABS
C411
C418
• XAKDRI CANAL (WBOLX - 5 CRABS)
BH1311 880224
BH1327 880224
BH1336 880225
- BOQUBRON (WHOLB
BH1312
BH1313
BH1335
- ROOSEVELT ROADS
BH1334
BH1333
- S CRABS)
880222
880323
880325
(WHOLB - S CRABS)
880327
880328
TARPON - FRONTBRA LAGOONS {WHOLB - 5 FISH)
X209 BH1318 880226
X2S1 KBP BH132S 880226
X220 BH1321 880227
X227 BH1320 880226
TARPON
Z003
X014
TARPON
X040
TARPON
X041
TARPON
X410
X417
X430
- BOQUBRON (WHOLB
BH1329
BH1324
- BOQUERON (WHOLB
BH1328
• BOQUZRON (WHOLB
BH1326
- ROOSEVELT ROADS
BH1310
BH1332
BH1315
- 2 FISH)
880324
880324
- 1 FISH)
880324
BNDL
MD
BKDL
BKDL
BKDL
BKDL
BKDL
ND
NO
MD
BKDL
ND
BKDL
BKDL
BKDL
- 5 FISH, COMPOSITE)
680324 BKDL
(WHOLB - 5 FISH)
880326
880326
880328
MD
MD
BKDL
CALLINULBS - FRONTERA LAGOONS (LIVER - 5 GALLINULBS)
M053 BH1317 880225 BKDL
GALLINULBS - BOQUBRON (LIVER • 5 GALLINULBS)
MOS2 BH1330 880222
CATTLB
M051
CATTLB
M050
BGRBTS - FRONTERA
BH1316
BGRBTS - BOQUERON
BH1319
LAGOONS (LIVER - 6
880225
BKDL
CATTLB BGRETS)
BKDL
(LIVER - 6 CATTLB EGRBTS)
8802.22 BKDL
3,900
1,000
4,200
3,200
2,700
3,700
3,400
720
1,900
1,600
2,500
2,100
3,300
2,800
3,600
3,500
1,500
7OO
3,000
2,400
4,300
5,300
2,700
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
12,000
09/14/1990
-------
IABLI 15 (continued)
Dynamic ETC
Nuafcwr Number D»t« Lab Qual
OTBBR/NISCELLWBOOS - Ct} oJ.ua
CRABS - FRONTBRA NORTH LAGOON (WHOLE - 5 CRAB5)
Cr203 BH1323 88022S
Cf204 BH1314 860227
CF220 BB1322 880224
CRABS - MANDRI CANAL (WHOLE - 5 CRABS)
CK207 BH1311 880224
CM208 BH1327 880224
CM220 BB1336 88022S
CRABS - BOQUERON (WHOLE - S CRABS)
C001 BH1312 880222
C008 BH1313 880323
C026 BR1335 880325
CRABS - ROOSEVELT ROADS (WHOLE • S CRABS)
C411 BH1334 880327
C41S BH1331 880328
C418 BH1333 880328
TARPON - FRONTERA LAGOONS (WHOLE - 5 FISH)
Z209 BH1318 880226
Z2S1 REP BB1325 880226
Z220 BH1321 880227
Z227 BH1320 880226
TARPON - BOQUERON (WHOLE - 2 PISH)
Z003 BH1329 880324
Z014 BH1324 880324
V«lu«
42,300,000
39,500,000
18,700,000
60,100,000
68,600,000
97,600,000
78,300,000
66,300,000
32,700,000
45,300,000
43,400,000
57,900,000
16,600,000
10,SOO,000
18,800,000
22,300,000
10,200,000
7,100,000
KDL
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,OOO
40,000
40,OOO
TARPON - BOQUERON (WHOLE - 1 FISH)
Z040 BH1328 880324 15,500,000 40,OOO
TARPON - BOQUERON (WHOLE - 5 PISH, COMPOSITE)
Z041 BH1326 880324 3., 100,000 40,OOO
TARPON -ROOSEVELT ROADS (WHOLE - 5 71 SB)
Z410 BB1310 880326 52,100,000 40,000
Z417 BB1332 880326 29,700,000 40,000
Z430 BH1315 880328 21,400,000 40,000
GALLINULES - FRONTERA LAGOONS (LIVER - 5 GALLINULBS)
M053 BB1317 880225 300,000 40, COO
GALLINULES - BOQOBRON (LIVER - 5 GALLINULBS)
M052 BB1330 880222 280,000 40,OOO
CATTLE EGRETS - FRONTBRA LAGOONS (LIVER - 6 CATTLE EGRETS)
M051 BH1316 880225 130,000 40,OOO
09/14/1990
-------
XABUI 15 (coatiautd)
Dynaaae ETC
Number Nuab«r D«t«
OTHER/HI SCELLMBOQ3 - Ctlcd.ua (continued)
CATTLE EGRETS - BOQUBRON (LIVER - 6 CATTUt
MOSO BB1319 880222
OTBEK/HZSCSLIMIBOOS - Cobalt
L*b Qual
EGRETS)
CRABS - FROWTBRA NORTH LAGOON (WHOLX - 5 CRABS)
CF204 BH1314 880227 NO
CF220 BH1322 880224 NO
CRABS - MAXDRI CANAL (WHOLE - 5 CRABS)
CK207 BH1311 880224
CK220 BR1336 880225
CRABS - BOQOERON (WHOLE - 5 CRABS)
COOS BH1313 880323
C026 BH133S 880325
CRABS - ROOSEVELT ROADS (WHOLE • 5 CRABS)
C411 BB1334 880327
C41S BH1331 880328
TARPON - FRONTBRA LAGOONS (WHOLE - 5 FISH)
X220 BB1321 880227
TARPON - BOQUBRON (WHOLE - 2 FZSH)
X003 BR1329 880324
X014 BH1324 880324
TARPON - BOQUERON (WHOLE - 1 FISH)
2040 BH1328 880324
TARPON - ROOSEVELT ROADS (WHOLE - 5 FZSH)
X410 BH1310 880326
X430 BH1315 880328
ND
BMDL
ND
ND
ND
ND
ND
ND
ND
ND
ND
BMDL
V«lu«
140,000
520
440
630
870
630
250
260
350
300
160
630
570
240
1,000
XDL
40,000
4,000
4,000
4,000
4,000
4,000
4,000
4,000
4,000
4,000
4,000
4,000
4 , 000
4,000
4,000
GALLINULES - FRONTERA LAGOONS (LIVER - 5 GALLINULBS)
M053 BH1317 880225 ND 300 4,000
GALLINULBS - BOQUBRON (LIVER - 5 GALLINULBS)
M052 BB1330 880222 ND 470 4,000
CATTLE EGRETS - BOQUERON (WHOLE - 6 CATTLE EGRETS)
MOSO BH1319 880222 ND 88 4,000
09/14/1990
-------
XABLB 15 (continued)
Dynamac
Number
ETC
Nuator
Dat«
Lab Qual
Value
MDL
OTHER/KISCSLLMBOOS - CyaJlid*/ Total
CRABS - FRONTZRA NORTH LAGOOV (WHOLI - 5 CRABS)
CF203 BH1323 880225 < 430 430
CF204 BH1314 880227 < 550 550
CF220 BH1322 880224 < 380 380
CRABS - XAKDRX CANAL (WHOLE - 5 CRABS)
CX207 BH1311 880224 < 630 630
CX208 BH1327 680224 < 520 520
CH220 BH1336 880225 < 590 590.
CRABS - BOQOBRON (WHOLI - 5 CRABS)
C001 BH1312 880222 < 470 470
COOS BH1313 880323 < 410 410
CQ26 BH1335 880325 < 570 570
CRABS - ROOSBVBLT ROADS (WHOLI - 5 CRABS)
C411 BH1334 880327 < 370 370
C415 BH1331 880328 < 440 440
C418 BH1333 880328 < 500 500
TARPON - FRONTSRA LAGOONS (WHOLE - 5 FZSB)
X209 BH1318 880226 < 500 500
X2S1 RBP BB132S 880226 < 500 500
Z220 BH1321 880227 < 500 500
X227 BH1320 880226 < 500 500
TARPON - BOQUBRON (WHOLI - 2 FISH)
X003 BH1329 880324 < 620 620
X014 BH1324 880324 < 610 610
TARPON • BOQUBRON (WHOLS - 1 FISH)
X040 BH1328 880324 < 580 580
TARPON - BOQUBRON (WHOLI - 5 FISH, COMPOSITE)
X041 BH1326 880324 < 620 620
TARPON • ROOSBVBLT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326 < 530 530
X417 BH1332 880326 < 430 430
X430 BH1315 880328 < 420 420
OTHSR/MISCBLLANSOOS - Iron
CRABS - FRONTZRA NORTH LAGOON (WHOLE - 5 CRABS)
CF203 BH1323 880225 530,000 30,000
CF204 BB1314 880227 570,000 30,000
CF220 BH1322 880224 300,000 30,000
09/14/1990
-------
TABLE 15 (continued)
Dynaaac 1TC
Number Nuab«r Date Lab Qual Valu* KDL
OTBER/HISCELLJUIBOOS - Iron (continued)
CRABS - KANDRI CANAL (WHOLE - 5 CRABS)
CM207 BH1311 880224 350,000 30,000
CK208 BH1327 880224 170,000 30,OOO
CM220 BH1336 880225 220,000 30,000
CRABS - BOQUSRON (WHOLE - 5 CRABS)
C001 BB1312 880222 140,000 30,OOO
COOS BH1313 880323 92,000 30,OOO
C026 BH1335 880325 470,000 30.OOO
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BB1334 880327 95,000 30,OOO
C415 BH1331 880328 42,000 30,000
C418 BB1333 880328 54,000 30,OOO
TARPON - FROKTBRA LAGOONS (WHOLE - 5 FISH)
X209 BH1318 880226 29,000 30,000
X251 REP BH1325 880226 26,000 30,OOO
X220 BB1321 880227 23,000 30,000
X227 BH1320 880226 30,000 30,OOO
TARPON - BOQUBRON (WHOLK - 2 FISH)
X003 BH1329 880324 33,000 30,OOO
X014 BH1324 880324 30,000 30,OOO
TARPON - BOQUZRON (WHOLK • 1 FISH)
X040 BH1328 880324 20,000 30,000
TARPON - BOQUEROH (WHOLE - 5 FISH, COMPOSITE)
X041 BB1326 880324 BXDL 16,000 30,OOO
TARPON - ROOSEVLBT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326 33,000 30,000
X417 BH1332 880326 BXDL 18,000 30,OOO
X430 BB1315 880328 36,000 30,000
CALLINULBS - FRONTERA LAGOONS (LIVER - 5 GALLUTULES)
M053 BB1317 880225 1,600,000 30,OOO
CALLINULES - BOQOBRON (LIVER - 5 GALLINULES)
MOS2 BH1330 880222 1,000,000 30.OOO
CATTLE EGRETS • FRONTERA LAGOONS (LIVER - 6 CATTLE EGRETS)
K051 BB1316 880225 610,000 30,OOO
CATTLE EGRETS - BOQUERON (LIVER - 6 CATTLE EGRETS)
MOSO BB1319 880222 350,000 30,OOO
09/14/1990
-------
(conti*u.d)
Dynannc
Number
ETC
Nuabcr
Oat*
L4b Qu*l
V«lu«
XDL
OTHSR/MISCSUMfSOOS - HagngaJ.ua
CRABS - FRONTBRA NORTH LAGOON (WHOLE - 5 CRABS)
CF203 BH1323 880225 2,300,000 20,000
CF204 BH1314 880227 2,490,000 20,000
CF220 BH1322 880224 1,600,000 20,000
CRABS - KANDRI CANAL (WHOLE - 5 CRABS)
CK207 BH1311 880224 2,620,000 20,000
CX208 BH1327 880224 3,430,000 20,000
CM220 BH1336 880225 4,980,000 20,000
CRABS - BOQUBRON (WHOLE - 5 CRABS)
C001 BH1312 880222 4,120,000 20,000
COOS BH1313 880323 3,730,000 20,000
C026 BH1335 880325 2,760,000 20,000
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327 2,620,000 20,000
C415 BH1331 880328 2,580,000 20,000
C418 BH1333 880328 3,010,000 20,000
TARPON - FRONTBRA LAGOONS (WHOLE - 5 FISH)
X209 BH1318 880226 510,000 20,000
X2S1 RSP BH132S 880226 430,000 20,000
X220 BH1321 880227 600,000 20,000
X227 BH1320 880226 650,000 20,000
TARPON - BOQOBRON (WHOLE - 2 FISH)
X003 BH1329 880324 600,000 20,000
X014 BH1324 880324 350,000 20,000
TARPON - BOO.OERON (WHOLE - 1 FISH)
X040 BR1328 880324 500,000 20,000
TARPON - BOQUERON (WHOLE - 5 FISH, COMPOSITE)
X041 BH1326 880324 290,000 20,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326 1,100,000 20,000
Z417 BH1332 880326 800,000 20,000
Z430 BH1315 880328 . 610,000 20,000
GALLXNULBS - FRONTBRA LAGOONS (LIVER - 5 GALLINULSS)
H053 BH1317 880225 210,000 20,000
GALLINVLBS - BOQUERON (LIVER - 5 GALLINULES)
KOS2 BH1330 880222 210,000 20,000
09/14/1990
-------
TABLE 15 (continued)
Dynaaac
Number
1TC
Nuaber
Date
Lab Qual
Value
XDL
OTHER/HISCSLLAXBOOS - Jfagneaiua (continued)
CATTLE EGRETS - FRONTBRA LAGOONS (LIVER - 6 CATTLB EGRBTS)
HO 51
BH1316
880225
CATTLB EGRETS - BOQUBRON (LIVER - 6 CATTLB EGRETS)
M050 BH1319 880222
OTHBR/HISCBLLMSOOS -
CRABS - FRONTERA NORTH LAGOON (WHOLE - 5 CRABS)
CF203 BH1323 88022S
CP204 BH1314 88022?
CF220 BH1322 880224
CRABS - KANDRI CANAL (WHOLE - S CRABS)
CM207 BH1311 880224
CM208 BH1327 680224
CM220 BH1336 88022S
CRABS - BOQUBRON (WHOLE - S CRABS)
C001 BH1312 880222
C008 BH1313 880323
C026 BH1335 88032S
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327
C41S BH1331 880328
C418 BH1333 880328
TARPON - FRONTERA LAGOONS (WHOLE - S FISH)
X209
X251 REP
X220
X227
BH1318
BH1325
BH1321
BH1320
880226
880226
880227
880226
TARPON - BOQUERON (WHOLE - 2 FISH)
X003 BH1329 880324
X014 BH1324 880324
TARPON - BOQUERON (WHOLE - 1 FISH)
X040 BH1328 880324
TARPON - BOQUERON (WHOLE - 5 FISH, COMPOSITE)
X041 BH1326 880324 BKDL
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326
X417 BH1332 880326
X430 BH1315 880328
230,000
190,000
480,000
493,000
460,000
365,000
567,000
527,000
127,000
86,000
99,000
79,000
60,000
83,000
11,000
8,700
11,000
20,000
2,500
1,700
2,800
670
10,000
6,300
3,900
20,000
20,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
09/14/1990
-------
TABLE 15 (contiautd)
Dynia*;* ETC
Nunb«r Nuab«r D»t«
OTHER/KISCSLLMBOOS - Htmgviit* (continued)
L*b Qual
GALLINULBS - FRONTERA LAGOONS (LIVER - S FISH)
M053 BH1317 880225
CALLINULBS • BOQUKRON (LIVER - 5 FISH)
M052 BH1330 880222
CATTLE EGRETS - FRONTBRA LAGOONS (LIVER - 6
M051 BH1316 880225
CATTLE EGRETS)
CATTLE EGRETS - BOQUBRON (LIVER - 6 CATTLE EGRETS)
M050 BH1319 880222
OTHER/MISCELLANEOUS - JTicJkel
CRABS - PRONTERA NORTH LAGOON (WHOLE - 5 CRABS)
CF220 BH1322 880224 BXDL
CRABS - MANDRI CANAL (WHOLE - 5 CRABS)
CM207 BH1311 880224
CX208 BH1327 880224
CM220 BH1336 880225
CRABS - BOQUERON (WHOLE - 5 CRABS)
C001 BH1312 880222
COOS BH1313 880323
C026 BH133S 880325
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 680327
TARPON - PRONTERA LAGOONS (WHOLE - 5 FISH)
X209 BH1318 880226
X227 BH1320 880226
TARPON - BOQUZRON (WHOLE - 2 FISH)
X003 BH1329 880324
Z014 BH1324 880324
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
X410 BH1310 880326
X417 BH1332 880326
X430 BH1315 880328
ND
ND
ND
ND
BXDL
ND
ND
ND
ND
ND
ND
ND
ND
BXDL
Valu*
11,000
2,900
4,200
2,700
830
220
170
110
740
1,100
770
460
460
55
280
290
93
93
950
KDL
1,OOO
1,000
1,000
1,000
4,000
4,000
4,000
4.000
4,000
4,OOO
4,000
4,000
4,OOO
4.0OO
4,000
4,000
4,000
4,000
4,000
GALLIKULES - PRONTBRA LAGOONS (LIVER -. S GALLZNULES)
M053 BH1317 880225 ND 240 4,000
09/14/1990
-------
XABL* 15 (coatiBMd)
Dynamic ETC
Numb«r Nunb«r Dat« L*b Qutl V»lu« KDL
OTHBR/HISCELLANBOOS - Potajaiua
CRABS - FRONTERA NORTH LAGOON (WBOLI - 5 CRABS)
CF203 BH1323 880225 2,300,000 100,000
CF204 BH1314 880227 2,500,000 100,000
CF220 BH1322 880224 2,300,000 100,000
CRABS - KAKDRI CANAL (WHOLE - 5 CRABS)
CK207 BH1311 880224 1,800,000 100,000
CM208 BB1327 880224 3,000,000 100,000
CM220 BB1336 880225 2,400,000 100,000
CRABS - BOQCBRON (WHOLE - 5 CRABS)
C001 BH1312 880222 2,200,000 100,000
COOS BH1313 880323 2,100,000 100,000
C026 BH1335 880325 1,900,000 100,000
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BB1334 880327 2,200,000 100,000
C415 BH1331 880328 2,000,000 100,000
C418 .BH1333 880328 1,800,000 100,000
TARPON - FRONTERA LAGOONS (WHOLE - 5 FISH)
X209 BH1318 880226 2,900,000 100,000
X251 REP BH1325 880226 2,200,000 100,000
Z220 BH1321 880227 2,700,000 100,000
Z227 BH1320 880226 2,500,000 100,000
TARPON - BOQUBRON (WHOLS - 2 FISH)
X003 BH1329 880324 3,200,000 100,000
X014 BH1324 880324 2,400,000 100,000
TARPON - BOQUERON (WHOLE - 1 FISH)
X040 BH1328 880324 3,100,000 100,000
TARPON - BOQUERON (WHOLE - 5 FISH, COMPOSITE)
X041 BH1326 880324 3,400,000 100,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
X410 BH1310 680326 3,200,000 100,000
X417 BH1332 880326 2,900,000 100,000
X430 BH1315 880328 2,3.00,000 100,000
GALLINULES - FRONTERA LAGOONS (LIVER - 5 GALLINULBS)
M053 BH1317 880225 2,600,000 100,000
GALLINULES - BOQUERON (LIVER - 5 GALLINULES)
H052 BH1330 880222 3,000,000 100,000
CATTLE EGRETS - FRONTBRA LAGOONS (LIVER - 6 CATTLE EGRETS)
M051 BH1316 880225 2,600,000 100,000
09/14/1990
-------
TABU 15 (coDtiauwl)
Dynamic
Number
ETC
Ruabcr
Oat*
Lab Qual
Valu*
XDL
OTBBR/HISCBLLMSOOS - Potaaslua
CATTLE EGRETS - BOQUBROH (LIVSR - 6 CATTLI EGRETS)
M050 BH1319 880222 2,800,000 100,000
OTBER/niSCELLtJIBOVS - Sodiua
CRABS - FRONTERA NORTH LAGOON (WHOLE - S CRABS)
CF203 BH:323 88022S 3,600,000 100,000
.CF204 B81314 880227 3,500,000 100,000
CF220 BB1322 880224 3,200,000 100,000
CRABS - MANDRI CANAL (WHOLE - 5 CRABS)
CK207 BB1311 880224 3,400,000 100,000
CK208 BH1327 880224 3,700,000 100,000
CK220 BB1336 880225 3,700,000 100,000
CRABS - BOQUEROH (WHOLE - 5 CRABS)
C001 BH1312 880222 5,000,000 100,000
COOS BH1313 880323 6,600,000 100,000
C026 BB1335 880325 5,400,000 100,000
CRABS - ROOSEVELT ROADS (WHOLE - 5 CRABS)
C411 BH1334 880327 3,300,000 100,000
C415 BH1331 880328 4,100,000 100,000
C418 BH1333 880328 4,500,000 100,000
TARPON - PRONTERA LAGOONS (WHOLE - 5 FISH)
X209 BB1318 880226 1,200,000 100,000
X251 REP BH1325 880226 1,100,000 100,000
Z220 BH1321 680227 1,300,000 100,000
Z227 BH1320 880226 1,200,000 100,000
TARPON - BOQUERON (WHOLE - 2 FISH)
Z003 BH1329 880324 2,200,000 100,000
Z014 BH1324 880324 1,100,000 100,000
TARPON - BOQUERON (WHOLE - 1 FISH)
Z040 BH1328 880324 1,100,000 100,000
TARPON - BOQUERON (WHOLE - 5 FISH, COMPOSITE)
Z041 BH1326 880324 . 1,300,000 100,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
Z410 BH1310 880326 2,100,000 100,000
Z417 BH1332 880326 1,700,000 100,000
X430 BH131S 880328 1,700,000 100,000
GALLINULBS - FRONTKRA LAGOONS (LIVER - 5 CALLINULBS)
K053 BH1317 880225 1,200,000 100,000
09/14/1990
-------
TABLS 15 (coatiaue*)
Dynjmac ITC
Number Number Date LaJb Qual Value XDL
OTBSK/mSCELLAHSOOS - SodJ.ua (continued)
GALLINULBS - BOQOBRON (LIVIR • S GALLXNULBS)
N052 BB1330 880222 1,300/000 100,000
CATTLE EGRETS - FRONTBRA LAGOONS (LIVER - 6 CATTLE EGRETS)
M051 BB1316 880225 1,100,000 100,000
CATTLE BGRBTS - BOQUERON (LIVIR - 6 CATTLE EGRETS)
M050 BB1319 880222 1,100,000 100,000
OTBBR/HISCELLMBOOS -
CRABS - FRONTBRA NORTH LAGOON (HHOLX - 5 CRABS)
CP203 BB1323 880225 ND 740 4,000
CT204 BB1314 880227 ND 320 4,000
CF220 BH1322 880224 NO 550 4,000
CRABS - MANDRI CAKAL ( WHOLE - 5 CRABS)
CK207 BB1311 880224 ND 460 4,000
CK208 BH1327 880224 ND 220 4,000
CRABS - BOQUERON (WHOLE - 5 CRABS)
C001 BH1312 880222 BKDL 840 4,000
COOS BB1313 880323 ND 650 4,000
C026 BB1335 880325 BMDL 2,300 4,000
CRABS - ROOSEVELT ROADS (KHOLE - 5 CRABS)
C411 BH1334 880327 ND 6SO 4,000
C418 BB1333 880328 ND 220 4,000
TARPON - FRONTBRA LAGOONS (WHOLE - S FISH)
X209 BB1318 880226 ND 410 4,000
TARPON - BOQUSRON (WHOLE - 2 FISH)
X014 BB1324 880324 ND 460 4,000
TARPON • BOQUERON (WHOLE - 1 FISH)
Z040 BB1328 880324 ND 410 4,000
TARPON - ROOSEVELT ROADS (WHOLE - 5 FISH)
Z410 BH1310 880326 ND 270 4,000
X430 BH1315 880328 BMDL 840 4,000
GALLINULES - FRONTERA LAGOONS (LIVER - 5 GALLIHULES)
MOS3 BH1317 880225 BMDL 930 4,OOO
REP - replicate of sample on line above
09/14/1990
-------
Batxpton and Madia
MeaaY
lExpoann
OMJ,
(UO.9S*)'
L COWENT LAND USE:
XB10B (i|/k|)
M*anfc(Wacb, Mara?
•.TiffinaBfriftt)
MBC
brim Diwlfid
MalsylC
A. Vd»(i|/k()
•.Air (mt/m3)
Tacaakm
• SAT
X)ta.(r«a))
U*
1.0
222
»7.
91
SOT
I.OS
T»
an
IUIS
000015
0.017
0426
SO
DO
1.730
J.«00
.»
100.000
O.OO
aots
D. RJTVRE LAND USE;
Mannjr
110* II
1-10
X)*a.(T«d)
Tal
0.00000)
OOI7
Hi
u
0
15
1M
144
OJ0014
O0>
OJ07
• OJt
• 0.001
0.005
0122
lit
2*
LOtl
J29
O
«J
ro
21
ojoom
O.UJ •
0^03 •
O •
ID .
=-5 •
U •
OLOU •
0.4! .
an •
MIT •
OK* •
rno •
91 »
15J
2JOO
w»
HO
2U
2B
O
o
i
^ £
3 O-
? O
o
o
o
o
D. I
-------
Table 17
Potential Exposure Pathways
MEDIUM
ROUTE
POTENTIALLY EXPOSED
POPULATION '
WORKERS
I. CURRENT LAND USE:
Biota, Ingestion
Surface Water
Ingestion
Dermal Contact
Sediments
Frontera Lagoons Dermal contact
Ingestion
Technicon Ditch
Frontera Creek
Sediments
Soils
Groundwater
Dermal Contact
Ingestion
Dermal Contact
Ingestion
Inhalation
Particulates
Ingestion
Dermal Contact
Ingestion
Dermal Contact
II. FUTURE LAND USE:
Biota Ingestion
N
ADULTS CHILDREN
PATHWAY SELECTED
FOR EVALUATION?
N
N
N
N
N
N
N
N
Y
N
'Y
Y
N
N
N
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
Y
N
N
N
N
N
Y
N
Y
Y
N
N
N
N
N
N
-------
Table 17
Surface Water
Sediments
Frontera Lagoons
Technicon Ditch
Frontera Creek
&i£
Soils
Ingestion
Dermal Contact
Dermal Contact
Ingestion
Genual Contact
Ingestion
Dermal Contact
Ingestion
Inhalation
Particulates
Ingestion
Dermal
N
N
N
N
N
N
N
N
Y
N
N
N
N
Y
Y
N
Y
Y
Y
N
Y
N
Y
Y
N
Y
Y
N
Y
Y
Y
N
Y
N
Y
Y
N
Y
Y
H
Y
Y
Y
N
Y
N
Y
Y
-------
Table 18
Toxic I ty Value* for Honcere'nogenle Effects
Chemical
Or«l tout*
Acetone
Arsenic
Cadalua
Carbon Oisulfide
Ethyl lenient
Mercury
Methyl Ethyl Ketone
Methyl Isobutyt Ketene
Methyl Chloride5
.
Nethylene Chloride
Toluene
Xytene
.
Permit laute
Acetone
Arsenic
Cedalua
Carbon Otsulfide
Ethyl Icnzene
Mercury
Methyl Ethyl Keton*
IfO
(•8/k9-dey)
1.00E-01
1.00E-03
1.00E-03
1.00E-01
1.00E-01
'
3.00-04
5.00E-02
5.00E-02
, 2.40E-01
6.00E-02
2.004-01
2.00E*00
-
1.00E-01
1.00E-03
1.00E-03
1.00E-01
1.00E-01
3.00E-04
5.00E-02
Confidence
level1
low
Ned (UN
low
Mediua
Mediua
Low
lev
Medtun
Ktdtua
Mediun
low5
lo-3
to-3
to-3
to-3
IfO
Critical Effect Source
Hepatic effects IMS
ratal Toxicity 111*
Teratogenlcity
Hepatic and lenal HIS
Effects
Neurological Effects HIS
No adverse erffects U1S
Nepatfc Effects HIS
Neurological effects Dynaasc
Hepatic Effects HIS
Hepatic and lenal HIS
Effects
Nyperactlvity. decrease HIS
In body weight and
increased aortal Ity '
• •
*
• •
« •
« •
• «
OF and MF2
Ur • 1,000 for H.A.S.t
KF • 1
Health Effects Summary
Tables, USEPA 1990
Health Effects Summary
Tables. USE»A 1990
OF • 100 for I.A
MF » 1
OF • 1,000 for R.A.S
MF • 1
UF « 10 for I
MF • 1
UF » 1,000 for «. A.J.I
NF • 1
UF • 1.000 for I.A, S.I
MF » 1
UF • 100 for I.A
MF • 1
UF • 100 for I.A
MF • 1
UF • 1,000 for I.A.t
MF • 1
UF • 100 for I.A
MF • 1
•
Health Effects Suonary
Tables. USEFA 1990
Health Effects Summary
Tables. USEPA 1990
•
•
-
•
Methyl Isobutyl Ketone 5.00E-02 to-J
04/24/91
-------
Toluene
Xytene
Table 18
Toxlclty V»lue» for Honcarclnogenlc Effects
Chemical
Methyl Chloride5
Methylene Chloride
IfO
(f>BAg-day>
2.40E-01
6.00E-02
Confidence IfO
Level1 Critical Effect Source UF and MF2
low* - .
low5
2.00E-01 low*
2.00E+00 low*
jnhalatfen teute
Acetone
Ethyl lenzene
Mercury
Kethylene Chloride
Toluene
Xylene
2.99E*00 ton"
1.00E-01 low'
3.00E-0* IOM'
6.00E-02 Low"
2.00E*00 Lex"
3.00E-01 LOM"
Harcetls. local
•EA
•t
.4
1 • Confidence level fro*. ISIS
2 - UF « Uncertainty Factor; Kf * Modifying Factor
Uncertainty Adjustcentt:
M » variation tn human sensitivity
A « anittal to human extrapolation
S • extrapolation froa subchronic to chronic MOAEL
L * extrapolation fro» LOAEL to NOAEL
S - If derul or inhalation IfDt are not available, oral IfDs were used. In such circuostances confidence
levels were judged low
« - 55FI 30798 • July 27, 1990 Federal leglster, 'roposed Corrective Action lule for Solid Vifte Manageoent
Units
5 • HO estiMtes by Oynaeac based on data obtained frosi IRIS and ATDSt
6 • Confidence level judged low since IfO for Inhalation exposures not reviewed by EPA and/or cited by HIS
04/24/91
-------
Table 19
Hazard Indices for Reasonable Maximum Exposures
Reuoiutble Maximum ExpotureCMe
Receptor Oroup/Pithway
HQ Mercury
Adult Child
HI V00(3)
Adult Child
HO Aftenic
Adult Child
HQ Cadmium
Adult Chfld
L CURRENT LAND USB
/. Loet! Ketldentt
IngwUoc of Aqiuttc Bleu
Derail Cootect with
3.6E-01 2.6E-01 -
S.OE-03 - 7.9E-04
TOTAL HI
2. Worken
Dermal Contact Sod"
TOTAL HI
TOTAL CURRENT HI
3.7E-01 2.6E-OI
6.4E-02 -
4.8E-01 -
8.IE«0 . -
8.6E«0 -
9.0E«0 2.6E-OI
7.9E-04 -
3.3E«CO -
3JE«00 -
3.3E«0 -
-
I.6E-03 •
6.6E-02 -
6.7E-02 -
6.7E-C2 -
-
4.0E-0* •
I.7E-02 -
1.7E-02 -
1.7E-«2 -
n. FUTURE LAND USE
/. Crtttlfn* KaJdaitx
InscMion of Soil
D«raul Contort wfch Sod
DermJ ConUet with
SurfM«W*icr
D«rm«l Contact wtth
2.SE-04 2.2E-03 -
1.6E-02 1.9E-02 ...
I.2E-OI 4.4E-O1 I.OE«O 3.8E«00 -
9JE-06 I.1E-O* 6.4E-02 7.4E-01 -
4.5E-03 2.6E-02 I.5E-05 5.0E-04 -
TOTAL HI
I.4E-01 4.8B-01 I.IE«0 4JE«00 -
-------
Table 19
Hazard Indices for Reasonable Maximum Exposures
Reuotutble KUxlaum E«po«ure Cu*
Receptor Oroup/P«thw«y
HQ Mercury
Adult Child
HI VCXX3)
Adult Child
HQArenle
Adult ChH4
HQC-doJum
Adult Chfld
2. FurureLocal fimldent*
InhiJttkM 2.2E-01 7.8E-01 4.SE«0 I.7E«1
DOTIM! CenUet wfth
Surfac«WMer 3.3E-05 4.JE-04 l.SE«0 l.8E*l
DernuJ Cocuet whh
S«dlaeau l.tE-02 3.9E-OI 3.6E-4 I.6E-OJ
IncMfntil bgwboa of
TcEhAloea Dheh SadlBMU 7JE-03 I.3E-01 -
Dersul Ceauct with
Technics* Dkeh S«Un»eot» | «.4E-01 2.3E«0 -
I
TOTAL HI
i 9.6E-OI 3.6E«0 6.3E*0 3.5E»1 -
$. future Worker*
Incidental Ingtaboo of
TcchakxM Ditch SodtoBBU 7.2E-02 -
* Dvraul ConUfll wKh
T«eKtt)eea Dkch MlMU 2.4E«0 •
TOTAL HI
2.5E«0 -
t-DI/R/D
•• For P«erieM Tub* vorkm. aad Mwmiag reuombU BMIBUB •spawn*, th* HQ wwato diw to lacldactol iagodea of or dor*«I
«»««Je la tea «M wtimtad «4.IE-I Md I.8E»1. rapMUvd/. For WJK workon. tb. HQ CMlmlua WM «dnMMi« 9.SE-3 Md 4 2E-1
HI Ibzwd bd« • SUM(HQ)
-------
Table 20
Toicicitj Values for Carcinogenic effects
Rout*
Slop* Factor
(mg/kg-day)-!
Weight of Evidence
Classification
Source
Oral
Kethylen* Chlorid*
Areenic
Dermal
Kethylen* Chloride
Arsenic
Inhalation
Hethylene Chloride
7.50B-03
1.75B-00
7.50E-03
' 1.75E-00
1.40E-02
B2
A
B2
A
B2
IRIS
XRIS(2/91)
IRIS
IRIS(2/91)
IRIS
-------
Table 21
Summary of Potential Carcinogenic Risks
Reasonable Maximum Exposures
Group/Pathway
Methvlene Chloride Arsenic
Adult Child Adult Child
Total
L CURRENT LAND USE
/. Local Residents
Dermal Contact - Sediments
1.5E-8
1.5E-8
Inhalation
Incidental Soil Ingeso'oa**
Dermal Contact with Sofl*»
TOTAL CURRENT RISK
0. FUTURE LAND USE
/. Cristiar.t Residents
Inhalation
TOTAL
2. Future Local Residents .
Inhalation
Dermal Contact with SW
TOTAL
3. Future Workers
1.2E-3
1.2E-6
4.9E-5
1.2E-3 - 5.0E-5
3.8E-4 2.6E-4 -
3.8E-4 2.6E-4
1.6E-3 1.1E-3
6.0E-5 4.7E-5
1.6E-3 1.1 E^3
- .
1.2E-3
1.2E-6
4.9E-5
I.2E-3
6.4E-4
6.4E-4
2.7E-3
I.1E-4
2.8E-3
-
reasonable •"•*?»»*" exposures, (he total lifetime carcinogenic risk for a hypothetical Peer-
less Tube worker exposed over a lifetime to (he maximum detected arsenic concentration in toil
was estimated at 3.2E-4 and I.3E-2 for the direct ingestion and dermal contact pathways, respectively.
-------
3
o
TABLE 22
Potential Chemical-Specific ARARs
Item
Reference
Mercury Concentration Limits Remarks
1. Soil/Sediment Spray
2. Freshwater and
Saltwater Criteria for
Protection of Human
Health and Aquatic
Life
3. PR State Dept of
Health: Freshwater
Water Quality Criteria
4. Standards for
discharge to POTW,
Puerto Rico
ROD-GE Wiring Services
Site, Juana Diaz, PR
CWA Ambient Water
Quality Criteria
EPA, Oct. 1980 and EPA,
Jan. 1985
PRDOH Regulations
Puerto Rico ASA Rules
and Regulations for the
supply of water and
sewer services, State
Dcpt. 330R
Protection of human health:
a) water and.fish ingestion
= 1.4 x 10"4 mg/1
b) fish consumption only
= 1.5 xlO* mg/1
Protection of aquatic life in
freshwater: ,
acute = 2.4 x lO'-'jng/l
chronic » 1.2 x 10"5 mg/1
Protection of aquatic life in
marine water: ,
acute » 2.1 x I0"3jng/l
chronic = Z5 x 10° mg/1
Water uptake «
(instream) or 1 x 30"-* mg/1
a) surcharge condition limit
= 0.05 mg/1 (when applicable)
b) max permissible limit
= 0.10 mg/1 (when applicable)
No chemical-specific ARARs
for mercury in
soil/sediment are
available
For chronic exposures
based on 4 day average
concentration exceedance,
once every 3 years for
acute exposures, based on
1 hour average
concentration exceedance
once every 3 years. Also,
criteria based on acid
soluable filtered samples.
Liquid phase not consider-
ing sediment or fish
consumption
-------
I
TABLE 22
Potential Chemical-Specific ARARs
Item
Reference
Mercury Concentration Limits Remarks
5. Characteristic
Hazardous Solid Waste
6. Air Exposure Limits
40 CFR 261, Subpart C
261.24
CAA; NESHAPs (National 1 ug/m3
Emission Standard for a
Hazardous Pollutant)
EP Toxicity Max. Cone
- 02 mg/f
Ambient air quality for
mercury issued under
NESHAP, pursuant to CAA
-------
TABLE 22
Potential Action-Specific ARARs
Action
Requirements/Appb'cability
Citation
Dredging
Removal of all contaminated sofl/
sediment:
a) RCRA hazardous waste placed at
site or into another unit
b) Dredging must comply with section
10 of the Rivers and Harbors Act and
U.S. Army Corps of Engineers Regulation
c) Permits under Section 404 of CWA
40 CFR 264228
40 CFR 264.258
33 USC 403
33 CFR 320-330
Excavation
Discharge to
POTWs
Dike
Construction/
Stabilization
Waste
Transportation
On-site
Treatment
Container
Storage
Closure with
waste in place
Material containing hazardous waste 40 CFR 268 C
subject to land disposal in another
unit
Guidance in EPA memorandum entitled
"Discharge of Wastewater from CERCLA
Sites into POTW
40 CFR 4033 and
local regulations
Existing surface impoundments 40 CFR 264.221-227
containing hazardous wastes, or
creation of a new surface impoundment
RCRA and Dept of Transportation rules
for the transportation of hazardous
materials
49 CFR Parts 107,
171.1 -172.558
49 CFR. 173
RCRA hazardous waste being treated 40 CFR 264271-283
on-site or placed into another unit
Container of RCRA hazardous waste held 40 CFR 264.171-178
for a temporary period
Stabilization of waste
residues to support cover
and waste
40 CFR 264228,
258,310
In addition to action-specific ARARs, other Federal requirements may include:
OSHA requirements for workers engaged in response or other hazardous
waste operations (29 CFR 1910.120)
• Occupational Safety and Health Act of 1970 (20 U.S.C 651)
FRONTTERA CREEK
3-4C
PS
-------
TABLE .22
Location Specific ARARs
Location specific ARARs are restrictions placed on the concentrations of
hazardous substances or the conduct of activities solely because they are in
specific locations. Examples of special locations include floodplains,
wetlands, historic places, sensitive ecosystems or habitats.
1. Parts of Frontera Creek site may have locational significance (sensitive
habitats in the Lagoons and surrounding areas); and may be subject to the
Endangered Species Act The Act requires action to avoid jeopardizing the
continued existence of listed endangered or threatened species or
modification of their habitat
2. Fish and Wildlife Coordination Act: Requires action to protect fish and
wildlife from actions modifying streams or areas affecting streams. The
Act may become relevant if remedial alternatives include Frontera Creek
diversion or channel modification.
FROVTERA CREEK . 3-SA PS
-------
APPENDIX C
-------
COMMONWEALTH OF PUERTO RICO / OFFICE OF THE GOVERNOR
»-c
B5L^
September 17, 1991
Environmental
'Quality Board
Kathleen Callahan
Director
Emergency and Remedial
Response Division
Environmental Protection Agency
Region II - Room 737
26 Federal Plaza
New York, New York 10278
RE: ENVIRONMENTAL PROTECTION
AGENCY (EPA) DECLARATION
FOR RECORD OF DECISION OF
FRONTERA CREEK SITE,
HTJMACAO, PUERTO RICO
Dear Ms Callahan:
The Superfund Core Program of the Air Quality Area, received
the Declaration for the Record of Decision of Frontera Creek Site,
Humacao, Puerto Rico for evaluation and comments.
The alternative chosen by the Environmental Protection Agency
(EPA) is Alternative 3: "Excavation, Removal and off-site Disposal
without Treatment". This alternative involves the excavation of
370 cubic yards of mercury-contaminated sediments at the Technicon
ditch, the excavation of 180 cubic yards of mercury-contaminated
soils at the Technicon surrounding facility and the dewatering and
containment of excavated material. The off-site disposal of
excavated material will be at a RCRA Subtitle D or C waste facility
in the mainland. Waste generated from dewatering will be analyzed
and pre-treated prior to their discharge to Technicon's wastewater
treatment plant, a local POTW, or an on-site treatment plant.
Confirmatory soil sampling at the remediated areas will be
performed to verify that mercury concentrations in pn-site material
do not exceed the remedial action objective of 35 ppm. The
remediated areas will be subsequently regraded and revegetated.
OFFICE OF THE BOARD: NATIONAL BANK PLAZA / 431 PONCE D£ LEON AVE. / SANTURCE. PUERTO RICO 00910
P.O. BOX 11488 / SANTURCE. PUERTO RICO 00910 / TELEPHONE: 767-8181
-------
Comments from Frontera Creek Site Septembtr 17, 1991
Humacao, Puerto Rico Page 2
The selected alternative is in compliance with the nine
evaluation criteria that encompass the statutory requirements for
EPA. They are:
1. Threshold Criteria - Overall protection of Human
Health and the Environment in compliance with the
Applicable or Relevant and Appropriate Requirements
(ARARs).
2. Primary Balancing Criteria - Long-Term effectiveness
and permanence, reduction of toxicity, mobility or
volume through Treatment, Short-Term Effectiveness,
Implementability and Cost Effectiveness.
3. Modifying Criteria - State and Community Acceptance.
There is potential for unfavorable short-term health and
environmental impacts since this alternative includes a series of
activities that involve excavation, handling, storage, off-site
transportation and/or treatment of contaminated media regarding the.
short-term effectiveness. However, these impact can be mitigated
by implementing site specific health and safety plans, including
the use of personal protective equipment during its implementation.
Also, the selected remedy will pose some problems such as the
material will have to be shipped to the mainland for disposal due
the lack of RCRA subtitle D or C facilities in Puerto Rico that are
likely to accept these materials.
The Puerto Rico Environmental Quality Board (PREQB) concurs on
the selected alternative: "Excavation, Removal and off-site
Disposal without treatment" and request that EPA inform EQB of all
future activities at the site.
PREQB also requests that the following specific information be
provided as it becomes available:
1. Air, page Is:
Specify what kind of treatment will receive the VOCs
detected in the air surrounding the Technicon-Squibb
fence.
2. Part IX Description of the Selected Remedy:
"Dewatering and Containment of excavated material",
Page 41:
a. Comply with the requirements of Erosion and
Sedimentation Control Plan since the remedy
involve ground removal.
-------
Comments from Frontera Creek Site September 17, 1991
Humacao, Puerto Rico Page 3
b. Coordinate with the local POTW that will
receive the wastewater generated from the
dewatering process in such a way that the
wastewater treatment plant can be in good
condition to accept the discharge.
Is there any question about this comments please contact me at
phone number (809)767-8056 or Miss Eileen C. Villafane of the
Superfund Core Program at (809)767 8071.
Cordially,
Pedro A. Maldonado, Esq.
Acting Chairman
cc: Eng. Jos6 Font
Mr. Melvin Hauptman
Miss Eileen C. Villafane
Adrew Praschak, Esq.
-------
APPENDIX D
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