PB94-963845
EPA/ROD/R02-94/240
March 1995
EPA Superfimd
Record of Decision:
RCA del Caribe
(O.U. 1), Barceloneta, PR
9/30/1994
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DECLARATION FOR THE RECORD OF DECISION
SITE NAME AND LOCATION
RCA del Caribe Site
Barceloneta, Puerto Rico
STATEMENT OF BASIS AND PURPOSE
This decision document presents the selected remedial action for
the RCA del Caribe Site (the "Site"), located in the Town of
Barceloneta, Puerto Rico, which was chosen in accordance with the
requirements of the Comprehensive Environmental Response,
Compensation and Liability Act of 1980 ("CERCLA"), 42 U.S.C. §§
9601-9675, as amended by the Superfund Amendment and
Reauthorization Act of 1986, and the National Oil and Hazardous
Substances Pollution Contingency Plan ("NCP"), 40 CFR Part 300.
This decision document explains the factual and legal basis for
selecting the remedy for the Site.
The Puerto Rico Environmental Quality Board ("EQB") concurs with
the selected remedy. A letter of concurrence from the EQB is
appended to this document (Appendix IV).
The information supporting this remedial action decision is
contained in the administrative record for the Site, an index of
which is appended to this document (Appendix III).
DESCRIPTION OF THE SELECTED REMEDY; NO ACTION
The U. S. Environmental Protection Agency ("EPA"), in
consultation with EQB, has determined that the Site does not pose
a significant threat to human health and the environment and,
therefore, remediation is not necessary nor appropriate. This
determination is based upon the results of the Remedial
Investigation and Risk Assessment performed for the Site. This
determination is for the Site as defined by CERCLA which is the
soils and sediments in the four lined lagoons and any groundwater
contamination associated with releases from these lagoons. EPA's
Risk Assessment indicates that the levels of contaminants present
in the groundwater and the soils associated with the four lined
lagoons, in addition to two sludge drying beds and two sludge
surface impoundments, do not pose an unacceptable risk to human
health and the environment.
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The no action decision is for the four lined lagoons and the
groundwater at the Site. The two sludge drying beds and two
sludge surface impoundments are hazardous waste units regulated
pursuant to the Resource Conservation and Recovery Act ("RCRA").
In accordance with the requirements of the Administrative Order
with EPA, the General Electric Company will address the soil
contamination within the RCRA regulated units at the Site by
submitting a RCRA closure plan for those units or by successfully
delisting the wastes.
DECLARATION OF STATUTORY DETERMINATIONS
In accordance with the requirements of CERCLA, as amended, and
the NCP, EPA, in consultation with EQB, has determined that the
RCA del Caribe Site does not pose a significant threat to human
health or the environment, therefore, no remedial action is
necessary for the four lined lagoons and associated groundwater
at the Site. A five (5) year review is not required for the RCA
del Caribe Site because no hazardous substances remain at the
Site above health-based levels. EPA has determined that its
response at this Site is complete under CERCLA. Therefore, the
Site now qualifies for inclusion on the Construction Completion
List.
Jeanfife M. Fox Dae
Regiphal Administrator
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TABLE OF CONTENTS
DECISION SUMMARY
Page
I. SITE NAME, LOCATION AND DESCRIPTION 1
II. SITE HISTORY AND ENFORCEMENT ACTIVITIES 2
III. HIGHLIGHTS OF COMMUNITY PARTICIPATION 3
IV. SCOPE AND ROLE OF RESPONSE ACTION 4
V. SUMMARY OF SITE CHARACTERISTICS 4
VI. SUMMARY OF SITE RISKS 7
VII. DESCRIPTION OF THE "NO ACTION" REMEDY 9
VIII. DOCUMENTATION OF SIGNIFICANT CHANGES 10
ATTACHMENTS
APPENDIX I FIGURES
APPENDIX II TABLES
APPENDIX III .ADMINISTRATIVE RECORD INDEX
APPENDIX IV LETTER OF CONCURRENCE
APPENDIX V RESPONSIVENESS SUMMARY
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DECISION SUMMARY
RCA del CARIBE SITE
BARCELONETA, PUERTO RICO
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION II
NEW YORK
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I. SITE NAME, LOCATION AND DESCRIPTION
The RCA del Caribe Site ("Site") is situated approximately 30
miles west of San Juan and about five miles inland from the
Atlantic Ocean in the northern coastal plain (see Figure 1). The
northern coastline consists of sand beaches, volcanic rock, and
coral reef ledges. Paralleling the coast to the south,
continuous dunes composed of sand and cemented sand have formed.
Behind the dunes are swampy lowland areas which extend southward
to the karst region. .The karst region is characterized by
conical hills called mogotes, elongated ridges called pepinos, a
narrow belt of flat terrain, and about five trapped upland
valleys trending east to west across this region parallel to the
coastline. Further inland the land surface elevation increases
and is characterized by fully developed mogotes, sinkholes, and
trapped terraces. This general topography is broken by the Rio
Grande de Manati valley which is a broad, flat alluvial plain
blending into swamps near the town of Barceloneta. The Rio
Grande de Manati discharges into the Atlantic Ocean at the Barrio
de La Boca.
The ground surface at the RCA facility is relatively flat, except
for mogotes at the southern boundary of the Site. A Site plan is
presented as Figure 2. As shown in this figure, the former main
factory building occupies the northern part of the facility. The
main factory building housed manufacturing equipment, offices,
and a small cafeteria. The equipment in the main factory
building was sold and removed and the building is periodically
used for the storage of manufacturing equipment from other
General Electric ("GE") plants on the island. The parking lot is
on the west side of this building. Located at the southern side
of the building is a concrete pad which had formerly been the
chlorine cylinder storage area.
Immediately south of the plant buildings are the equipment and
structures formerly used for treating process wastewater and
sanitary waste. These structures include the following: a small
sanitary wastewater treatment plant, several concrete sumps, a
clarifier tank, a process wastewater treatment plant, two water
storage tanks, the pad and dike for the now removed ferric
chloride storage tanks and the two sludge drying beds for the
process wastewater treatment sludge. These drying beds are now
overgrown with vegetation.
Two production wells (shallow and artesian) and a natural
sinkhole are located in the same general area as the water
storage tanks, as shown on Figure 2. The shallow production well
(unconfined aquifer) is located south of the water storage tank.
The artesian (confined aquifer) well is located southwest of the
former clarifier tank. The natural sinkhole is located south of
the .former chlorine cylinder storage pad. The sinkhole was used
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for the discharge of treated water from the wastewater treatment
plant pursuant to an Underground Injection Control ("UIC") permit
(No. 83-004) issued under the authority of the Federal Safe
Drinking Water Act.
Four former ferric chloride lagoons were located south of this
area. The lagoons were lined with a high density polyethylene
membrane; however, sinkholes reportedly formed under them
resulting in the loss of ferric chloride to the subsurface.
These lagoons were later closed under a Resource Conservation and
Recovery Act ("RCRA") closure plan. This area is now backfilled
and overgrown with grassy vegetation.
Two sludge surface impoundments are located southeast of the
former ferric chloride lagoons. This area is secured by a six-
foot high chain-link fence with locked gates. Both impoundments
are overgrown with vegetation, including shrubs and trees. The
southern one-third of the facility is undeveloped and covered by
ground vegetation and trees. One large, and two smaller mogotes
are present near the southern border of the facility.
The land in the immediate vicinity of the Site is principally
used for growing pineapples. Pineapple fields adjoin the
eastern, western, and northern boundaries of the facility. The
land immediately south of the facility is undeveloped and is
dominated by a large mogote. This undeveloped land is bordered
further to the south by private residences and is periodically
used by these residents for grazing horses and other stock
animals.
As seen in Figure 3, the parcels of land north and south of Route
2 are occupied by various industrial facilities and the town of
Tiburones. Most are within a one to two mile radius of the Site.
The Upjohn Manufacturing Company ("Upjohn") is situated due west
of the Site and Merck, Sharp and Dohme Quimica ("MSD") is to the
east. Both Upjohn and MSD are south of Route 2. - North of Route
2, the former A.H. Robbins facility (now owned by MSD) is located
to the northwest. The town of Tiburones is to the north, and the
Pfizer Pharmaceutical plant is to the northeast of the facility.
II. SITE HISTORY AND ENFORCEMENT ACTIVITIES
The facility was used by RCA since 1971 for the manufacture of
low-carbon steel aperture masks for color television picture
tubes by chemically etching carbon steel with a ferric chloride
solution. Manufacturing continued for approximately 17 years
until operations ceased in April 1987. The used ferric chloride
solution is a hazardous waste, as defined by RCRA. Four lined
lagoons (or ponds) were used at the Site to store the used
solution which exhibited a low pH. Between 1978 and 1981,
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sinkholes developed on the Site causing approximately 1.4 million
gallons of the ferric chloride solution from the lagoons to be
released into the subsurface. Shortly thereafter, EPA conducted
an investigation to determine whether the Site should be placed
on the National Priorities List ("NPL"). As a result of this
investigation, NPL listing of the Site occurred in December 1982.
The lagoons were closed in 1985 under an EPA and EQB approved
RCRA closure plan. Under the closure activities the lining
materials and related piping were removed and the area was
regraded using soils from other areas of the Site. From 1982
until 1987, the ferric chloride solution was stored in tanks and
sold to a wastewater treatment facility. Used water from the
manufacturing process (process water), containing ferric
chloride, was treated on-site to remove the contaminants and the
treated water was disposed into the sinkhole. The treatment of
process water created a sludge that was stored on-site in two
sludge drying beds and subsequently in two sludge surface
impoundments. At present, the amount of sludge remaining in the
drying beds is estimated at 100 cubic yards. The estimated
amount of treatment plant sludge within the two sludge surface
impoundments is 1,000 cubic yards. The sludge within these units
is considered F006 hazardous waste under RCRA.
RCA ceased operations at the facility on April 4, 1987. On
December 31, 1987, GE acquired RCA and became its legal
successor. On April 11, 1988; GE, as successor to RCA, entered
into a joint CERCLA/RCRA Administrative Order on Consent with EPA
to perform a Remedial Investigation/Feasibility Study ("RI/FS")
to determine the extent and magnitude of the contamination
created by the release of ferric chloride from the lagoons. In
addition GE agreed'to comply with RCRA's closure requirements for
the RCRA-regulated units at the Site. Those regulated units
include the two sludge drying beds and the two sludge surface
impoundments.
III. HIGHLIGHTS OP COMMUNITY PARTICIPATION
The RI report, Risk Assessment and the Proposed Plan for the Site
were released for public comment on July 18, 1.994. These
documents were made available to the public in the administrative
record file at the EPA Docket Room in Region II, New York City,
and at EPA's Caribbean Field Office at 1492 Ponce de Leon Avenue
in San Juan, Puerto Rico and at the information repository at the
Barceloneta Public Library. Public notices were published on
July 18, 1994 in Spanish in the El Nuevo Dia Newspaper and in
English in the San Juan Star Newspaper which announced the public
comment period regarding EPA's proposed remedy, EPA's Proposed
Plan for no action at the Site, the availability of supporting
documents, and the scheduled July 27, 1994 public meeting.
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A public meeting was held by EPA on July 27, 1994, in the
Barceloneta Town Hall to discuss the findings of the RI report,
the Risk Assessment, EPA's Proposed Plan for no action, and to
provide an opportunity for interested parties to present oral
comments and ask questions.
A summary of the significant comments on the Proposed Plan
received at the public meeting and during the public comment
period, and EPA's responses to those comments, are presented in
the Responsiveness Summary, which is appended to this Record of
Decision (see Appendix V).
IV. SCOPE AND ROLE OR RESPONSE ACTION
EPA's review of the RI data from the former four lined lagoons
indicates that the remedial activities related to the 1985
closure of those lagoons was adequate, and the lagoons do not
present an unacceptable risk. Furthermore, the Risk Assessment
indicates that levels of contaminants present in the groundwater
at the Site likewise do not present a risk. Therefore, EPA
concluded that no action would be required for the former four
lined lagoons as well as the groundwater and did not require GE
to conduct an FS to evaluate any remedial alternatives.
Under the joint CERCLA/RCRA Order, GE will address the soil at
the RCRA-regulated units at the Site pursuant to RCRA through
either a closure plan for those units or by successfully
delisting the wastes.
V. SUMMARY OF SITE CHARACTERISTICS
With the oversight of EPA and EQB, an RI was conducted to
determine the extent of contamination in soils and groundwater at
the Site. The results^ of the RI are summarized below.
Soil
Laboratory analysis was conducted for soil and rock samples
collected from the on-site sinkhole, former lagoons, two sludge
drying beds, two large sludge surface impoundments, and the soils
surrounding the impoundments to assess the potential impacts of
facility-related activities on soils underlying the .Site. The
parameters for which these samples were analyzed were arsenic,
barium, cadmium, chromium (total), lead, mercury, selenium,
silver, chromium (hexavalent), cyanide, iron, volatile organics
compounds, hazardous waste characteristics, total oil, and
grease.
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Arsenic concentrations ranged from a low of 0.95 milligrams per
kilogram ("mg/kg") to 118 mg/kg. Background concentrations
ranged from 0.95 to 118 mg/kg. "Background" was determined by
sampling at an off-site location. Barium was detected in all
samples submitted for analysis. Concentrations ranged from 1.4
mg/kg to 102 mg/kg. Background barium concentrations ranged from
1.6 to 21.4 mg/kg. Cadmium concentrations in the samples were
below detection limits except for one sample in which the cadmium
concentration was estimated to be 0.95 mg/kg.
Hexavalent chromium was not detected in any of the soils. Total
chromium analysis of samples showed concentrations ranging from
7.7 mg/kg to 8,400 mg/kg. However, the majority of the total
chromium concentrations were between 50 and 300 mg/kg.
Background total chromium concentrations ranged from 7.7 to 286
mg/kg. Analytical data results show that no soluble (hexavalent)
chromium was detected in any of the soil samples. This confirms
that the. chromium encountered within the Site soils is trivalent
and is unlikely to leach from the shallow soils and bedrock.
Iron was detected in the soils at concentrations ranging from 779
mg/kg to 188,100 mg/kg. The median concentration was
approximately 50,000 mg/kg. Background iron concentrations
ranged from 1,260 to 95,100 mg/kg.
Lead was detected in the soils at concentrations ranging from
0.45 mg/kg to 18.7 mg/kg. The median lead concentration was
approximately 5.0 mg/kg. Background lead concentrations ranged
from 0.70 to 18.7 mg/kg.
Mercury concentrations in the soils were typically at or below
detection limits. Estimated concentrations of mercury ranged
from 0.13 mg/kg to 1.3 mg/kg. Generally, mercury concentrations
were below 0.40 mg/kg. Background mercury concentrations ranged
from below detection to 0.31 mg/kg.
Selenium and total amenable cyanide concentrations (this includes
all forms of cyanide, except iron cyanides) were not detected in
any of the samples submitted for laboratory analysis. The
results for silver were generally at or below the detection limit
of approximately 1 mg/kg with the exception of two samples, with
a maximum concentration of 16.3 mg/kg. Silver concentrations for
the background samples ranged from not detected to 1.4 mg/kg.
Soil sampling results are presented in Tables 1 through 15 of the
RI Report.
Groundwater
Two aquifers underlie the Site. The aquifer of interest is the
upper unconfined aquifer located primarily in the Aguada
Limestone, where the water table is approximately 300 feet below
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the land surface. The upper aquifer is underlain by a confined
artesian aquifer.
Five groundwater monitoring wells were constructed at the Site
down to 396 feet (Figure 4). The groundwater flow direction is
to the north-northwest. Recharge to the shallow aquifer occurs
through the bare limestone on the mogotes, through sinkholes and
through the relatively low permeability blanket deposits.
Seven rounds of groundwater samples were collected from the on-
site monitoring wells and three rounds of samples were conducted
at the thirteen (13) off-site wells. The thirteen (13) wells
included five Upjohn monitoring wells, seven private wells used
for agricultural, dairy or poultry farming, and one public water
supply well (Figure 5)*
Three rounds of samples were collected during the RI for the
CERCLA portion of the study and four rounds were collected to
support GE's RCRA delisting petition for the sludge (which is
classified as EPA hazardous waste, number F006) in the sludge
drying beds and sludge impoundments. The delisting petition
would reclassify the material as non-hazardous, i.e., not
considered hazardous waste based on current characteristic
properties.
Chloride concentrations in samples ranged from 256 mg/L to 1/220
mg/L. Total chromium was detected in a sample from each of the
wells on at least one occasion during the sampling rounds at
concentrations ranging from below detection to 1.870 mg/L.
Hexavalent chromium was not detected in either unfiltered or
filtered samples.
Total iron concentrations in groundwater samples ranged from non-
detect to 59.4 mg/L. Low concentrations of total arsenic were
detected with a maximum measured value of 0.034 mg/L. The
maximum concentration of barium was 0.067 mg/L. Total lead was.
generally detected in unfiltered samples at low concentrations
with a maximum concentration of 0.034 mg/L. Dissolved lead was
detected at concentrations up to 0.001 mg/L.
The maximum concentration of total mercury was 0.009 mg/L
measured in the unfiltered sample from well MS-4 during round 3.
Dissolved mercury was detected in just two on-site wells with a
maximum concentration of 0.008 mg/L.
Total and dissolved selenium were detected in samples from each
of the on-site wells at or near the limit of detection. A
maximum value of 0.006 mg/L for total selenium was measured in
the shallow unfiltered sample from MW-3. Total amenable cyanide
was not detected in any unfiltered groundwater samples. Total
cadmium was detected at concentrations up to 0.002 mg/L. Total
and dissolved silver were not detected in any groundwater
samples.
6
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Tetrachloroethylene ("PCE") was detected at estimated
concentrations ranging from 0.003 to 0.009 mg/L. Carbon
disulfide was detected once in the shallow sample from an on-site
well.
Existing or proposed Federal Safe Drinking Water Act Maximum
Contaminant Levels ("MCLs") were slightly exceeded for chromium,
mercury, and PCE in a small percentage of the samples. The
chromium MCL was exceeded in 7 out of 110 samples; the maximum
concentration detected was 1.870 mg/L and the MCL is 0.10 mg/L.
The mercury MCL was exceeded in 11 out of 110 samples; the
maximum concentration detected was 0.009 mg/L and the MCL is
0.002 mg/L. The PCE MCL was exceeded in 3 out of 56 samples; the
maximum concentration detected was 0.01 mg/L and the MCL is 0.005
mg/L. None of the MCLs were exceeded for any contaminants in the
seven private wells or the one public water supply well that was
included in the investigation.
Groundwater sampling results are included in Tables 16 through 25
of the RI Report.
VI. SUMMARY OF SITE RISKS
Based on the results of the RI, a baseline risk assessment was
conducted at the Site. -The baseline risk assessment estimates
the current and potential future risks associated with the Site
if no remedial actions are taken.
Human Health Risk Assessment
The reasonable maximum human exposure is evaluated in the
baseline risk assessment. A four-step process is utilized for
assessing site-related human health risks for a reasonable
maximum exposure scenario: Hazard Identification—identifies the
contaminants of concern at the Site based on several factors such
as toxicity, frequency of occurrence, and concentration.
Exposure Assessment—estimates the magnitude of actual and/or
potential human exposures, the frequency and duration of these
exposures, and the pathways (e.g., ingesting contaminated well-
water) by which humans are potentially 'exposed. Toxicity
Assessment— determines the types of adverse health effects
associated with chemical exposures, and the relationship between
magnitude of exposure (dose) and severity of
adverse effects (response). Risk Characterization— summarizes
and combines outputs of the exposure and toxicity assessments to
provide a quantitative (e.g., one-in-a-million excess cancer
risk) assessment of site-related risks.
The baseline risks assessment began with selecting contaminants
of concern which would be representative of Site risks. These
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contaminants included chromium, chloride, arsenic, mercury,
selenium, and PCE in groundwater and trivalent chromium in the
two sludge surface impoundments and on-site soils. Chloride was
eliminated as a health concern in groundwater because chloride
does not present any health risks or issues. As such, it was
also eliminated as contaminant of concern for the Site.
All of the contaminants of concern, with the exception of arsenic
and PCE, are noncarcinogenic by the ingestion route of exposure.
Arsenic and PCE were evaluated for both carcinogenic and .
noncarcinogenic risks.
The baseline risk assessment evaluated the health effects which
could result from exposure to contaminants as a result of
ingestion of Site soils and ingestion and inhalation of
contaminants in groundwater. The likely future use of the Site
(industrial, residential, or recreational) is unknown. To
account for this uncertainty, the risk assessment assumed
residential- development of the Site, as this presents the most
conservative exposure scenario.
The residential scenario was evaluated for exposures to on-site
and off-site groundwater constituents and to trivalent chromium
in the soils and two sludge surface impoundments at the Site.
Metals and PCE are groundwater contaminants of potential concern.
Ingestion and inhalation are the primary exposure pathways of
concern for groundwater constituents. While there is no
mechanism for inhalation of metals in groundwater, inhalation of
volatile groundwater contaminants may occur during showering,
bathing, and other household activities.
Exposure to chromium in the soils and the two sludge surface
impoundments was assumed to be limited to incidental ingestion by
children and adults living on the Site in the future. These
represent the most conservative exposure scenarios for chromium
in on-rsite soils.
The health hazards of non-carcinogens are assessed by comparing
the chronic daily intake ("GDI") of a contaminant to its
reference dose ("RfD"); the RfD being a benchmark for safety by
virtue of its being based on the contaminant's threshold for
causing adverse health effects, to which multiple safety factors
are added. The ratio of the chronic daily intake to the
reference dose (CDI/RfD) is referred to as the Hazard Quotient
("HQ"). A HQ greater than 1 may be associated with adverse
health effects. To assess the overall potential for
noncarcinogenic effects posed by simultaneous exposure to
multiple contaminants, EPA has developed the Hazard Index ("HI"),
which is the sum of all HQs within a particular exposure pathway.
In the event that the addition of multiple subthreshold HQs
(i.e., HQ < 1) exceeds an HI of 1, adverse health effects may
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result if the individual contaminants are believed to share a
similar mechanism-of-action or toxic endpoint (e.g., liver,
kidneys, etc.).
The results of the baseline risk assessment indicate that the
groundwater and soils at the Site pose an acceptable risk to
human health. The HI for the combined exposures to groundwater
and soil contaminants at the RCA del Caribe Site is 0.44. The
combined HI is well below 1, suggesting that even under the most
conservative residential scenario, exposure to potentially site-
related constituents in groundwater and the two sludge surface
impoundments is highly unlikely to be associated with any non-
carcinogenic health effects.
Carcinogenic compounds were detected only in groundwater, and the
total cancer risk is 9.8 x 10'5., For known or suspected
carcinogens, EPA considers excess upper bound individual lifetime
cancer risks of between 10"4 to 10~6 to be acceptable. This level
indicates that an individual has no greater than one in ten
thousand to one in a million increased chance of developing
cancer as a result of site-related exposure to a carcinogen over
a 30-year period under the specific exposure conditions at the
Site. The carcinogenic risks associated with potential exposures
to site-related contaminants are within the acceptable range even
under the most conservative future residential exposure scenario.
State Acceptance
The Commonwealth of Puerto Rico concurs with EPA's selected no
action remedy. The letter of concurrence from the EQB is
attached as Appendix IV.
Community Acceptance
All comments received during the public comment period from July
18, 1994 to August 16, 1994 are summarized in the attached
Responsiveness Summary, Appendix V. No local citizens were
present at the public meeting, nor were any written comments
received from any local citizens. The Mayor of Barceloneta was
present at the public meeting and supported the no action
alternative. PRASA was present at the meeting and raised some
concerns with the location of the groundwater monitoring wells
and with chloride in the aquifer, and overall, did not agree with
the proposed remedy. In addition, PRASA submitted written
comments.
VII. DESCRIPTION OF THE "NO ACTION" REMEDY
Based upon the review of all available data and the findings of
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•the RI and Risk Assessment for the RCA del Caribe Site, EPA has
determined that the no action decision for the four former lined
lagoons and the groundwater is protective of human health and the
environment. The Risk Assessment indicates that the levels of
contaminants present in the groundwater and the soils associated
with the four former lined lagoons present risks which fall
within EPA's acceptable risk range.
The two sludge drying beds and the two sludge surface
impoundments are RCRA regulated units, and GE has consented to
close these units pursuant to the joint CERCLA/RCRA Order. The
material in those units are classified as listed hazardous waste
.number F006, as defined at 40 CFR Part 261, and as such, RCRA
regulations require closure. If, however, in accordance with EPA
delisting procedures those hazardous wastes are delisted, or
determined not to exhibit the characteristic of a F006 listed
waste, the wastes can be treated as solid waste and disposed of
accordingly.
A five (5) year review is not required for the RCA del Caribe
Site because no hazardous substances remain at the Site above
health-based levels. EPA has determined that its response at
this Site is complete under CERCLA. Therefore, the Site now
qualifies for inclusion on the Construction Completion List.
VIII. DOCUMENTATION OF SIGNIFICANT CHANGES
There are no significant changes from the preferred alternative
presented in the Proposed Plan.
10
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APPENDIX I
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Sa,i Juan Atef 7.
r. 5/re
Barcelonet
aypmon
Orocovis
RCA del Caribe
Barcetoneta, P.R.
General Site Location
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•14-
PLANT
BUILDINGS
DIKING FOR REMOVED
FERRIC CHLORIDE
STORAGE TANKS
CLARIFIES
TANK
SL'JDGE
DRYING
BEDS
APPROXIMATE
PROPERTY
BOUNDARY
PROCESS XASTEWATER
TW1ATMENT PLANT
CHLORINE
CYLINDERS
•STORAGE PAD
NATURAL
SINKHOLE
SMALL SLUDSE
SURFACE
RECREATION
PAVILLION
CASGE SLUDGE
SURFACE
"IMPOUNDMENT.
B - ABANDONED SHALLOW
WELL
SCALE (FEET)
0 50 100 150
CHESTER
- SHALLOW PRODUCTION WELL
- ARTESIAN WELL
FOOT COHTOUR INTERVAL
_M -- jo FOOT CONTOUR INTERVAL
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EXPLANATION
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Wells UpJ 101.102. and 103
PRASA/OMI Project
•Impoundments
A - Agricultural; I • Industrial
Scattered Debris
Landfills
Quarries and Borrow Pits
O - Quarry; BP - Borrow Pit
Gasoline Stations
Sinkhole Areas
Names are shortened versions
of corporate titles.
source:
USGS B*rc«ton»«. P R 7.5 MinuW
1 Topographic Mip >969PtioKx«vis«J '96J
RCAdelCaribe
Barcetoneta, P.R.
Regional Man-Made Features
that may Affect the
Flow Path Investigation
Figure 3
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GENERAL
PLANT
BUILDINGS
DIKING F0« BEHOVED
FERRIC CH.ORIOE
STORAGE TANKS
CLAfllFIER
TANK
SLUDGE
DRYING
BEOS
PROCESS WASTEKATER
TREATMENT PLANT
1CHLOR1NE-
CYLINOERS
STORAGE PAD
I NATURAL
I SINKHOLE
WATER
STORAGE
TANKS
SLUDGE
SURFACE
IMPOUNDMENT
•LARGE SLUDGE
SURFACE
-IMPOUNDMENT
- MONiTCRiNS HELL L
- SHALL O* PROOUCTIC
-4- - A3TESIAN *£i£
- 2 FOOT CONTOUR /A
»» -- JO FOOT COHTOiB J
SCALE IFE£T)
0 SO 100 ISC
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Location Of Off-Site
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Figure 5
-------
APPENDIX II
-------
T>tBLE
SOU. BORINO DATA
Boring B-l (Background) -
Parameter
Arsenic
Barium
Cadmium
Chromium
(Re«nft)ytis)
Chromium (Hexavalent)
(Rc«nalyiii-mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids*
(RcAniilysi*)
50 Feet Et* of Borrow Pit
s-i
42.9
21.4
0.97 U
107
(88.5 J)
0.122UR
(0.010 UJ)
41.800
11.6
O.I9J
0.49 UJ
0.73 UJ
0.61 U
82.2
(85.6)
S-3
62.1
14.5
0.97 U
156
(150 J)
O.I2IUR
(0.010 UJ)
52.000
8.0
0.28 J
0.48 UJ
0.73 UJ
0.61 U
82.5
(82.6)
BORING B-l
RCAdelCARIBE
BARCELONETA. PR
S-4
HO'-II.S1)
(mg/Kg)
96.5
10.3
t.OU
286
(238 J)
O.I26UR
(0.010 UJ)
95.100
9.2
O.I3U
0.96 J
1.4 J
0.63 U
79.5
(82.1)
S-6
(I5--I6.5-)
<»R/KR)
118
7.8
I.I U
28.0
(254 J)
0.133UR
(0.010 UJ)
90.100
18.7
0.31 J
0.53 UJ
I.3J
0.66 U
75.4-
(769)
S-7
(20--21.51)
(mg/Kg)
0.95
37
0.84 UJ
9.3
(9.3 J)
O.I05UR
(0.010 UJ)
1.440
070J
0 II U
0 42 UJ
0 6J UJ
I.IOU
94.9
(970)
S-S
(2S--265')
(mg/Kg)
35
1.6
087UJ
7.7
(0.65 UJ)
O.I09UR
(0 010 UJ)
1.260
0.78 J
0 II U
044UJ
0 65 UJ
I.2J
91.9
(92.6)
S-9
(33--35-1
24:1
40
087UJ
36.4
f 11.61)
O.I09UR
(0.010 UJ)
14.300
3.0
0 11 U
044UJ
0 65 UJ
1 10 U.
91 7
(90.7)
S-10
17.3
10.6
085UJ
23.9
(14.3 J)
0.106UR
(0.010 UJ)
7.920
1.9
Oil U
0 42 UJ
0.63 UJ
I.IOU
94.6
(96.4)
NOTES:
* = Unit! in percent.
U = Element wa« not detected; result wai lew than Inrtrument Detection Limit.
J = Quanlitation is approximate due to limitation! Identified in Quality Aiuurancc Review.
UJ = Not detected; but the detection limit is probably higher than reported based upon a low bias identified during the Quality Assurance Review.
R = Unrclinble; result rejected. ' .
-------
TABLE 2
SOIL BOniNG DATA
BORING B 2
Boring B-2 - 50 Feet North of Sinkhole
Parameter
Arsenic
Barium
Cadmium
Chromium
(Reanalysis)
Chromium (Hexavalcnt)
(Reanalysis - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids*
(Rcanaly.iU)
S-12
41.1
18.6
0.97 U
665
(WSJ)
O.I22UR
(0.010 UJ)
89.000
12.7
0.23 J
0.97 J
53J
0.61 U
82.2
(83.2)
S-13
(2'-4'V
28.8
14.5
I.OU
2.000
(2.010 J)
O.I30UR
(0.010 UJ)
184.000
14.0
0.71 J
I.I J
16.3
0.65 U
76.7
(77.8)
RCA del CARIBE
BARCELONETA. PR
S-14
(int/Kg)
72.1
20.9
0.99 U.
241
(392 J)
0124UR
(0.010 UJ)
80.000
17.4
0.38J
0.52 J
1 5J
0.62 U
80.7
(84.0)
S-15
(6'-8J)
60.3
21.0
I.OU
183
. (I74J)
0.125UR
(0.010 UJ)
63.700
10.3
0 19 J
0.50 UJ
083J
063U
80.0
(81 4)
S-16
36 4 R
5.1
I.OU
184 J
(203 J)
0.130 UR
(OOIOUJ)
56.600
20 OR
0 13 U
0 52 UJ
078UJ
065U
773
(78 6)
S-17
no--i2-)
70.8 R
203
097U
103 J
(106 J)
O.I20UR
(0 010 UJ)
45.200
90 R
041 1
0 .48 UJ
0.73 UJ
0 61 U
82.6
(806)
S-l»
3.0 R
2.1
0.87 UJ
8.7 J
(0.6S UJ)
0. 1 10 UR
(0.010 UJ)
2.000
0.91 R
0.11 U
0.43 UJ
0.65 UJ
1 IOU
92J
(V2.S)
NOTES:
• = Units in percent.
U = Element was not delected; result was less than Instrument Detection Limit.
J = Quiuititation is approximate due to limitations identified in Quality Assurance Review.
UJ •= Not detected: hut the detection limit It probably higher than reported, bancd upon n low bin* ideniifed during the Quality AMurancc Review.
R = Unreliable; result rejected.
-------
TABLE 2 (CONTINUED)
BORtNG DATA
BORING B-2
Boring B-2 - SO' North of Sinkhole (continued)
Parameter
Arsenic
Barium
Cadmium
Chromium
(Reanalysis)
Chromium (Hexavalent)
(Reanalysis - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids*
(Reanalysis)
S-19
(I4--16-)
9.5 R
3.0
0.92 UJ
16.0 J
(25.8 J)
0.120UR
(0.010 UJ)
4.780
1.4 R
O.I2U
0.46 UJ
0.69 UJ
I.20U
86.9
(86.8)
S-20
16.8 R
3.5
0.93 UJ
29.4 J
(29.2 J)
0.120UR
(0.010 UJ)
8.190
2.8 R
O.I8.J
0.47 UJ
0.70 UJ
1.20 U
85.8
(86.5)
RCA del CARIBE
BARCELONETA. PR
S-21 S-22
(rag/Kg) (mg/Kg)
16.8 R 11.7 R
4.4 33.7
0.99 UJ 0.93 UJ
27.9 J 31. 8 J
(— ) (19.3 J)
O.I20UR O.I20UR
<-— ) (0.010 UJ)
9.230 9.660
2.4 R 1.6 R
O.I2U O.I2U
0.50 UJ 0 46 UJ
0.74 UJ 0 69 UJ
1.20 U 1.20 U
80.8 86.4
(--) (84.8)
S-23
(30--32-)
<»g/Kg)
12.1 R
24
0.92 UJ
12.61
(I5.6J)
0.120 UR
(0.010 UJ)
3.IIOR
I.5R
0.12 U
0.46 UJ
0.69 UJ
I.20U
86.6
(85.1)
S-23A
(Duplicate)
15 6 R
6.7
0.94 UJ
33.9 J
O.I20UR
II.900R
2.0 R
O.I2U
0 47 UJ
0 70 UJ
1 20 U
85.2
(...,
S-24
(35'-37')
<-ng/Kg)
14. 8 R
3.7
0 88 UJ
S3 1 J
(29.5 J)
O.IIOUR
(0.010 UJ)
12.500
23R
0 II U
0 44 UJ
0 66 UJ
1 10 U
91.2
(860)
S-25
(mg/Kg)
66 5 R
80.0
0 95 UJ
IIOJ
(62.8 J)
O.I20UR
(0.010 UJ)
39.900
43R
0 12 U
0.48 UJ
0 71 UJ
1 20 U
842
(80.5)
(45--4T1
17. IR
2.3
0.93 UJ
I37J
(107 J)
O.I20UR
(0.010 UJ)
17.900
1.9 R
0.271
046UJ
070UJ
I.20U
86.1
(81.8)
S-27
12.0 R
I.S
087UJ
40.6 J
(35.3 J)
O.IIOUR
(0.010 UJ)
7.050
I.SR
0.2SJ
0.44 UJ
0.65 UJ
I.IOU
91.7
NOTES:
* = Units In percent.
U = Element was not detected; result was leas than Instrument Detection Limit.
J = Quantitatlon is approximate due lo limitations Identified in the Quality Assurance Review.
UJ " Not detected; but the detection limit is probably higher than reported. ha«x) upon a low bia* identified during (he Quality Assurance Review.
R ° Unreliable; result rejected.
-------
TABLE 3
SOIL BORING DATA
BORING B-3
RCA del CARIBE
BARCELONETA. PR
Boring B-3 - 30' South of Sinkhole
Parameter
Arsenic
Barium
Cadmium
Chromium
(Reannlyais)
Chromium (Hexavalent)
(Reanalysis - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (TotaJ)
% Solids*
(Reanalyai*)
S-28
(0--21)
(ing/Kg)
55.6 R
22.5
LOU
212 1
(245 J)
0.130UR
(0.010 UJ)
56.400 R
16.4 R
0.20 J
0.95 J
1.4 J
0.64 U
77.9
(73.1)
S-29
(2'~<1
(mg/Kg)
64.3 R
12.7
LOU
226 J
(324 J)
O.I20UR
(0.010 UJ)
65.700 1
14.3 R
O.I2U
0.50 UJ
I.OJ
0.62 U
80.2
(80.8)
S-30
f4'-6")
<»*/**)
69.3 R
17.7
0.98 U
245 J
(178 J)
O.I20UR
(0.010 UJ)
65.600 J
12. 7 R
0.38 J
0.84 J
I.5J
0.61 U
81.4
(82.4)
S-31
(6--8'l
(ma/Kg)
108 R
9.4
LOU
2I3J
(198 J)
0.130 UR
(0.010 UJ)
81. 200 J
19 OR
0.29 J
0.56 J
LOJ
0.64 U
78.0
(79.6)
S-32
(8'-IO')
<"»«/K|0
35.1 R
13.6
LOU
104 J
(108 J)
O.I30UR
(0.010 UJ)
35.000 J
8.7 R
1.3J
0 51 UJ
0 76 UJ
I.30U
78.8
(736)
S-33
(IO--I21)
(inR/KR)
I1.3R
38
0.93 UJ
24. OJ
(18 8 J)
0.120 UR
(0.010 UJ)
7.550 J
2 OR
0 12 U
046J
070UJ
1 20 U
863
(869)
S-3S
(I2'-I4')
(m^/Kg)
57.7 J
30.5
091 U
89.5 J
(36.9 J)
O.IIOUJ
(OOIOUJ)
32. 000 J
5.9 J
031 J
059J
0.68 U
1 10 UR .
88.1
(83.0)
3-36
(14--I6-)
(-*/**)
9 1 J
27
096UJ
17.6 J
(5.8 J)
O.I20UJ
(0010 UJ)
4.610 J
I.3J
OI2U
048UJ
0.72 U
I20UR
83.1
(85.4)
S-37
f!6'-18T
(-*/*«)
4.0 J
1.8
0.90 UJ
12.4 J
(— )
O.IIOUJ
(— )
3.2801
0.88 J
Oil U
0.4S UJ
0.68 U
HOUR
88.4
(— )
S-3S
«r-zn
<•*«<>
66.1 J
16.0
0.89 U
114 J
(I55D
O.IIOUJ
(0.010 UJ)
38.100 J
9.7 1
0.22 J
0.4S UJ
0.67 U
HOUR
B9.7
(79.1)
NOTES:
• = Units in percent.
U = Element was not detected; result was less than instrument detection limit.
J s Quantitation is approximate due to limitations Identified In the Quality Assurance Review.
UJ = Not detected: but the detection limit is probably higher than reported, based upon a low him identified during the Quality Alturwtcc Review.
R = Unreliable; result rejected.
-------
TABLE 4
SOIL BORING DATA
Boring B-4 - #1 Impoundment (Near Softball
Parameter
Arsenic
Barium
Cadmium
Chromium
(ReanaJysis)
Chromium (Hexavalenl)-
(Reanalysls - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids*
(ReanaJy.tis)
S-39
(mg/KtJ
3.0 J
1.8
0.89 UJ
8.0 J
(95J)
O.IIOUR
(0.010 UJ)
1.360 J ,
0.51 J
0.11 U
0.44 UJ
0.66 U
I.IOUR
90.3
(91.7)
BORING B-4
RCAdcICARIBE
BARCELONETA. PR
Backstop)
S-40
fir-14')
3.3 J
3.2
0.90 UJ
10.7 J
(53. U)
O.IIOUR
(0.010 UJ)
2.580 J
0.81 J
0.11 U
0.45 J
0.68 U
I.IOUR
88.4
(83.0)
S-41 S-42 S-43 S-44
(14*- 16') (I6--I8-) n8'-20') f20>-20.41
(mt/KK) (m«A«) («»*/Kg) (a**/K«)
12.6 J 25J 65 J 10.3 J
5.1 1.4 1.6 1.9
0.92 UJ • 0 90 UJ 0.88 UJ 0.90 UJ
23.5 J 81J .I68J 24.2 J
( — ) ( — ) (26 9 J) ( — )
O.I20UR O.IIOUR O.IIOUR O.IIOUR
( — ) ( — ) (0.010 UJ) ( — )
5.310 J . 779 J 13.600 J 22.000 J
1.0 J 045U 099J 0.861
0.12 U 0.11 U 0.17 J O.IIU
0.48 J 0 45 UJ 0.44 UJ 0.45 UJ
0.69 U 0.67 U 0.66 U 0.68 U
I.20UR I.IOUR 1 IOUR I.IOUR
86.8 88 9 90.8 88.5
(— ) (— ) (849) ( )
NOTES:
* = Units in percent.
U " Element was not detected; result was lew than Instrument Detection Limit.
J ° Qunntilntion i* approximate due to limitations Identified in the Quality Assurance Review.
UJ <3 Not detected; but the detection limit Is probably higher than reported, based upon a low bias identified during the Quality Asiurancc Rcvciw.
R a Unreliable; result rejected.
-------
TABLE -5
SOIL BORING DATA
Boring B-5 - fl Impoundment (Middle Luoon
Parameter
Arsenic
Barium
Cadmium
Chromium
(Reanalysia)
• Chromium (Hexavalent)
(Reanajysit - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids*
(RcAnalysis)
S-46
no'-m
<«*/K|0
28.8 J
11.9
0.96 U
146
(I3U)
0.120UR
(0.010 UJ)
50.300
6.4
O.I2U
0.48 UJ
0.72U
0.60 U
83.5
(87.4)
Wort)
S-46A
(Duplicate)
(•nR/K*)
63.9 J
15.3
0.96 U
148
(1381)
O.I20UR
(0.010 UJ)
51.900
7.5
O.I4J
0.48 UJ
I.OJ
0.60 U
83.7
(86.7)
BORING B-S
RCA del CAR1BE
BARCELONETA. PR
S^17
("•R/K*)
26.2
6.5
0 89 U
81.7
(75.6 J)
o HOUR
(0.010 UJ)
25.600
4.8
0.13J
0.45 UJ
0.67 U
0.56 U
894
(90.3)
S-48
(2Q'-22'1
(mR/Kg)
457
4.2
0.95 U
100
(101 J)
0.120UR
(0.010 UJ)
34.900
59
O.I2U
0.48U
0.72 J
059U
842
(89.1)
S-49
(22-23.2')
(OK/KK)
29.4
3.7
0 97 UJ
18.6
(95.8 J)
0.120 UR
(0.010 UJ)
5.100
43
0.12 U
2.4U
0.73U
. I20U
82.5
(803)
s-so
(24--2S.T)
(•C'KO
8.8
3.1
0.94 UJ
22.7
(56.3 J)
O.I20UR
(0.010 UJ)
13.100
I.3J
0.12 U
0.47 U
0.71 U
I20U
85.1
(84.1)
NOTES:
• = Units in percent.
U = Element wa* not detected: reiull wai lets than Indrument Detection Limit.
J = Quantitation is approximate due to limitation* identified in the Quality Assurance Review.
UJ - Not delected: bur the detection limit !• probably higher than reported. b«M
-------
TABLE -6
SOIL BORING DATA
Boring B-6 - f3 Impoundment (Middle Impoundment. East)
Parameter
Arsenic
Barium
Cadmium
Chromium
(Reuuilysis)
Chromium (Hcnavalent) .
(Reuialysit - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids*
(Rcanolysi*)
S-52
no'-m
(«n«/KR)
29.3
2.3
0.91 U
82.9
(78.9 J)
0.1IOUR
(0.010 UJ)
29.600
4.0
0.11 U
0.62 J
0.68 U
0.57 U
87.7
(89.6)
S-53
M2'-14')
(mg/Kg)
110
6.8
I.OU
196
(174 J)
O.I30UR
(0.010 UJ)
80.100.
8.8
0.13 U
0.50 U
I.2J
0.63 U
79.7
(82.2)
BORING B-6
RCA del CAJUBE
BARCELONETA. PR
S-54 S-55 S-56
(14'- 16") (18'-20') (2Q'-22')
(mg/Kg) (mg/Kg)
-------
TABLE 7
SOIL buRINO DATA
BORING B-7
RCA del CARIBE
BARCELONETA. PR
Boring B-7 - #4 Impoundment (E«gternmo»t Lagoon)
Parameter
Arsenic
Barium
Cadmium
Chromium
(Reanalysls)
Chromium (Hcxavalent)
(Rcajialysis - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids'
(RconnlyM*)
S-61
(ing/Kg)
33.0 R
2.4
0.89 U
90.6
(87.0 J)
O.IIOUR
(0.010 UJ)
30.300
3.7
0.11 U
0.45 UJ
0.92
0.56 U
89.7
(94.0)
S-62
M2'-I4'1
38.1 R
2.3 .
0.89 U
88.6
(84.2 J)
O.IIOUR
(0.010 UJ)
31.700
3.7
0.11 U
0.45 UJ
0.85
0.56 U
89.7
(92.6)
S-63
(I4--16')
(mg/Kg)
43.7 R
3.2
0.91 U
85.4
(75. U)
O.IIOUR
(0.010 UJ)
31.700
3.4
0.11 U
0.45 UJ
0.96
0.56 U
88.3
(97.5)
S-64
(I8--20-)
47.4 R
3.1
0.95 J
91 5
(87.3 J)
O.IIOUR
(0.010 UJ)
34.800
3.5
0.11 U
0.45 UJ
1.2 .
0.56 U
88.8
(879)
S-«5
(20--22-)
(mg/Kg)
71 4 R
32
0.96 U
(145 J)
0.120UR
(0.010 UJ)
56.000
5.9
0.12 U
0.48 UJ
1 6
0.60U
83.5
(859)
S-«6
(22'-24")
(mg/Kg)
34 6 R
19
0.95 U
124
(109 J)
0 120 UR
(0 010 UJ)
41.500
4.5
0 12 U
047UJ
12
059U
84.3
(893)
S-67
(24--26-1
(«g/Kg>
78 3 R
70
095U
110
(I46J)
0.120UR
(0 010 UJ)
36.600
6.3
OI2U
050J
094
OS9U
845
(84.4)
S
82 8 R
5.6
0.96 U
185
O.I20UR
(0.010 UJ)
53.300
6.5
O.I2U
0.4« UJ
14
0.60 U
83.7
(856)
5-68A
<-•««>
70.6 R
34
0.96 U
160
(131 J)
O.I20UR
(0.010 UJ)
54.400
7.4
O.I2U
\Sl
18
060U
83.7
(87.6)
NOTt
• = Units in percent.
U = Element was not delected; reeult was less than Instrument Detection Limit.
J = Quantilation is approximate due to limitations identified In the Quality Assurance Review.
UJ = Not detected; but the detection limit is probably higher than reported, based upon a low bias identified during the Quality Assurance Review.
R = Unreliable; result rejected.
-------
Boring B-7-lW Impoundment (Continued)
TABLE 7 CONTINUED)
SOIL BORING DATA
BORING B-7
RCA del CARIBE
BARCELONETA. PR
Parameter
Arsenic
. Barium
Cadmium
Chromium
(Reanalysis)
Chromium (Hcxavalcnt)
(Reanalysis - mg/L)
Iron
Lead
Mercury
Selenium
Silver
Cyanide (Total)
% Solids*
(Reaniilyiti*)
S-69
(28--30')
87.5 R
2.8
0.97 U
169
(184 J)
0.120UR
(0.010 UJ)
55.800
7.5
O.I2U
0.49 UJ
1.8
0.61 U
82.4
(82.4)
S-70
(35'-37'l
72.4 R
3.8
0.96 U
183
(180 J)
0.160R
(0.010 UJ)
60.800
9.6
O.I2U
0.48 UJ
1.6
0.60 U
83.7
(83.1)
S-72
(4Q'-42')
(»«/**)
II2R
8.1
1.0 U
218
(168 J)
0.160R
(0.010 UJ)
83.200
12.3
0.13 U
0.55 J
23J
0.66 U
76.2
(79.3)
S-73
(45-^47-)
(mR/Kg}
87 9 R
102
I.OU
133
(134 J)
0.270 R
(0.010 UJ)
57.100
13.5
0.15
0.50 UJ
2.0
• 0.62 U
80.4
(806)
S-74
(S5--S7-)
132 R
3.1
0.92 UJ
57.2
(127 J)
0 1IOR
(0.010 UJ)
7.550
20
0.19
. 0 46 UJ
0 69 U
I.IOU
872
(8$ 1)
NOTES:
* = Units in percent.
U =' Element was not delected; result was lesi than Instrument Detection Limit.
J = Quantitation is approximate due to limitations identified in the Quality Assurance Review.'
UJ = Not delected; but the detection limit is probably higher than reported, based upon a low bin* identified during the Quality Assurance Review.
R = Unreliable; remit rejected.
-------
TABLE 8
Sludge Drying Beds
TCLP Results for Inorganics
RCA del Carihe, Barceloneta, PR
PARAMETER
Anenic
Barium
CaJmiuin
Chromium
Hex.iv.iltnt
ClooiKitim
Lt.iJ
Mercury
Nickel
Selenium
Silver
C^yniude
TCLP*
:Limits
(ufi/L)
5.000
100.000
1.000
5.000
5.000
200
...
1.000
5.000
...
NDB-I
10/26/92
Composite
(UK/L)
20.0 U
308 U
2.0 U
. 2.0 U
17.0 U
0.20 U
40 U
39.0 U
2.0 U
10.0 U
N<
NDB-1 (Dup)
10/26/92
Composite
(H8/L)
20.0 U
312 U
2.0 U
2.0 U
17.0 U
0.20 U
40 U
39.0 U
2.0 U
10.0 U
mh Drying Bed
NDB-2
10/21/92
Composite
(UB/L)
20.0 U
432
2.0 U
10.8 U
0.01 R
17.3 UJ
0.20 U
21.4
39.0 U
10.0 UJ
10.0 U
NDB-3
10/26/92
Composite
(MC/U
20.0' u
251
2.0 U
2.0 U
17.0 U
0.20 U
40 U
39.0 U
2.0 U
10.0 U
NDB-4
10/26/92
Composite
(ug/L)
20.0 U
252 U
2.0 U
2.0 U
17.0 U
0.20 U
40 U
39.0 U
2.0 U
10 OU
SDB-S
10/21/92
Composite
(HK/L)
20.0 U
310 U
.2.0 U
2.0 U
17 OU
020U
9.9
39 OU
10.0 U
100 U
South Drying
SDB-6
10/26/92
Composite
(uert.)
22.1
228 U
20 U
2.0 U
17 OU
020U
40 U
39 OU
20 U
100U
Bed
SDft-7
10/26/92
Composite
(W^)
20.0 U
216 U
2.0 U
157
0.01 R
17.0 U
. 020 U
40 U
39.0 U
2.0 U
10.0 U
SOB-S
10/26/92
Coropostte
-------
TABLE 9
Sludge Drying Beds
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta, PR
PARAMETER
Arsenic
Barium
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
% Solids
NDB-1
10/26/92
Composite
(mg/kg)
10.8 J
11.6
1.0 U
3,000
31.4 R
0.87 J
19.7 J
0.27 UJ
12.7 J
0.66 R
73.4
NDR-l (Dup)
10/26/92
Composite
(mg/kg)
16.1 J
10.6
1.0 U
2,850
29.2 R
0.52 J
20.5 J
0.27 UJ
13.2 J
0.68 R
73.6
North Drying Bed
NDB-Z
10/21/92
Composite
(mg/kg)
11.6J
0.4
1.4 U
4.000
27.1 R
1.1J
10.8
0.28 UJ
10.7 J
0.69 R
72.2
NDB-)
10/26/92
Composite
(mg/kg)
14.8 J
17.6
1.0U
4,740
24.0 R
0.30 J
28.7 J
0.2B UJ
21.0 J
0.71 R
70.5
NDB-4
10/26/92
Composite
(mg/kg)
17.4 J
10.3
1.0 U
4,110
18.7 R
0.28 J
22.5 J
0.26 UJ
19.3 J
0.66 R
76.0
South Drying Bed
SOB- 5
10/21/92
Composite
(mg/kg)
14.2 J
1S.8
1.6 U
5.360
64.0 R
0.51J
43.3 J
0.27 UJ
26.4 J
067R
748
SDB-6
10/26/92
Composite
(mg/kg)
20.4 R
14.7
1.3 U
4,380
46.8 R
0.20 J
33.8 J
029UJ
22.8 J
0.73 R
681
SDB-7
10/26/92
Com polite
(mg/W
13.9 J
21.1
1.2 U
4.410
93.3 R
0.18 J
28.5 J
0.30 J
16.9 J
0.68 R
73.4
SDB4
10/26/92
Compos te
(ms/W
11.6 J
13.1
1.0 U
3,170
58.1 R
0.1 IJ
20.6 J
0.27 UJ
11.6 J
069R
729
Note: NDB - North Drying Bed
SDB - South Drying Bed
Bold Value - detected
R - data unreliable (analyte may or may not be present)
U - undetected, value is detection limit
) - value is an estimated <|iiantiry
-------
10
Sludge "Surface Impoundments"
TCLP Sample Results for Inorganics
RCA del Caribe, Barceloneta, PR
PARAMETER
Arsenic
IVuium
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
TCLP
Limits
5.000
100,000
1.000
5.000
5.000
200
—
1.000
5.000
—
Large Sludge Surface Impoundment
LSI-1
10/24/92
Composite
(UgAg)
1001*
577
10.0 U
10.0 U
85.0 UJ
0.20 U
35.0 U
195 UJ .
10.0 U
10.0 U
LS1-2
10/24/92
Composite
20.0 U
200 U
2.0 U
2.0 U
17.0 U
0200
40 U
39.0 U
2.0 U
10 OU
SSI -6
10/27/92
DufiCoap.
(lifi/Vs)
20.0 U
200 U
20 U
2.0 U
17.0 U
020 U
40 U
39 OU
2.0 U
Notes:
LSI • Large Surface Impoundment
SSI - Small Surface Impoundment
Bold Value = detected
R - d;«ta unreliable (analyte may or may not be present)
U • undetected, value is detection limit
J - value is an estimated quantity
UJ • undetected, value is estimate of detection limn or quant nation limit
not available
-------
TABLE 11
Sludge "Surface Impoundments"
Total Constituent Inorganic Analyses
Surface Composite Samples
RCA del Caribe, Barcelonta. PR
PARAMETER
Ar»enic
tXifium
C.tlmiiim.
Chromium
Lead
Mercury
Nickel
.Selenium
Silver
Cyanide
%SoU,
LSI -I
10/24/92
Composite
(mg/kg)
11.6J
19.6
1.2 U
3,790
76.6 R
0.14 R
66.2 J
0.29 UJ
16.7 J
0.72 R
69.0
Large Sludge Surface
LSI-2
10/24/92
Composite
10.7 J
30.6
1.0 U
4.400
175 R
0.14 R
69.2 J
0.28 UJ
23.8 J
0.71 R
70.6
Impoundment
LSr-3
10/24/92
Compmite
(mg/kg)
9.8 J
20.6
0.29 U
3,750
210 R
0.14 R
64.0 J '
0.29 UJ
17.6 J
0.72 R
69.1
LSI-4
10/21/92
Composite
(mg/kg)
13.0 J
21 J
1.4 U
3,950
86.6 R
0.17 J
74.0 J
0.26 UJ
18.9 J
0.65 R
77.5
SSI-5
10/27/92
Com polite
9.3 R
10.0
10U
4,900
17.1 R
0.62 J
25.2 J
029UJ
34.8 J
073R
688
Small
SSI -6
10/21/92
Compmite
13.3 J
13.0
1.0 U
7.080
33 OR
0.29 J
37.4 J
0 27 UJ
43.8 J
069R
729
Sludge Surface
SSI-7
10/28/92
Com poiite
f deiectuui limit or .|iuuiiujin>n limit
-------
TABLE 12
Large Sludge "Surface Impoundment"
Total Constituent Inorganic Analyses
Boring Sample Results
RCA del Caribe, Barceloneta, PR
PARAMETER
Anenlc
Barium
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
%Solkfe
Top
LSI-I 0-P
10/27/92
Boring
(mg/kg)
9.0 J
30.8
0.67 U
5,030
126 J
0.14 R
64.8 J
1 UJ
28.7
0.71 U
70.5
Top.(Dup.) Middle
LSMO-l1 LSI-1 1.5-2'
10/27/92 10/27/92
Boring Boring
(mg/kg) (mg/kg)
9.7 J —
37.3 -
0.57 U -
4,730 6,990
192 J —
1.60 R -
57.8 J —
1 UJ -
36.2 —
0.71 U -
70.5 668
Bottom
LSI-1 2.5-3.5'
10/27/92
Boring
(mg/kfi)
17.3 J
13.5
0.65 U
7.170
55.2 J
1.6
42.4 J
0 .33 UJ
46.5
0.82 U
61.1
Top
LSI-20-11
10/21/92
Boring
(rr.fi/Vg)
9.4 J
38.6
1 U
5.250
677 J
1.1
53.2 J
029UJ
42.6
0.73 U
688
Middle Bottom
LSl.21-1.5' LSI-2 1.5-2.5'
10/21/92 10/21/92
Hoeing Boning
(mg/Vg) (mg/Vg)
- IS^J
- If*
- 1 U
8*400 6.960
- 136 J
- 037
- • 44AJ
- 0.30 UJ
- 34J
- 0.78 U
62 8 65 8
Note: LSI • Large Surface Impoundment
— • Not analywd
Bold Value-detected
R " data refected a* unrrluble (urmlyie m»y <>r m»y n«i
U • undetected, value It detection limit
J - value It an eillmated quannry
-------
TABLE 12 (Continued)
•»
Large Sludge "Surface Impoundment"
Total Constituent Inorganic Analyse*
Boring Sample Results
RCA del Caribe, Barceloneta. PR
PARAMETER
Anenlc
Purl urn
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Sllvrr
Cyanide
% Soli*
Top
LSI-30-1'
1CV28/92
Boring
(mjjAjl)
7.1 J
27.0
0.59 U
4.260
208 J
0.50
54.4 J
0.29 UJ
24.7
0.74 U
68.0
Bottom
LS1-3 1-1.5'
10/28/92
Borinf
(mjt/kfl)
8.2 J
33.1
0.56 U
4.940
51.9 J
0.58
52.4 J
0.28 UJ
35.9
0.69 U
72.0
Top
LSMO-r
10/21/92
Boring
(mgAx)
6.6
40.3
0.82
6,490
385 J
0.58 R
71.1 J
5.9 UJ
24.9 J
0 74 UJ
67.6
TopdXrp.)
LSMO-r
10/21/92
Boring
(mg/lcg)
6.5
22.2
0.60
3,740
835 J
0.13 R
94.0 J
1.1 UJ
27.7 J
0.67 UJ
746
Middle Bottom
LSM1-I.S* LSMI.S-2.y
10/21/92 10/21/92
Boeing Boring
(mgAs) (mg/lm)
- 13.8
12.5
- 1.1
4.550 5.360
- 11.0 J
- 019 U
- 39.4 J
- 1.5 UJ
- 28.7 J
095 UJ
69 3 52 8
Note: LSI - Large Surface Impoundment
— - Not «n»lyied
Bold Value-detected
R - data rejected M unreliable (miulyte may or may mx he prrvni)
U • undetected, value b detection limn
)<• value It an eillmaieil «(u«niliy
-------
TABLE 13
Small Sludge "Surface Impoundment"
Boring Sample Results
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta. PR
PARAMETER
Anenic
Barium
Cadmium
Chromium
Lead
Mercury
Nkkel
Selenium
Silver
Cyanide
% Solid*
Top Middle
SSI-SO-I* SSI-5 1.5-2'
10/27/92 10/27/92
Boring Boring
(mg/kg) (mg/kg)
19.5 J —
11.6 —
0.63 U -
3,590 5,300
26.6 J —
0.71 —
21.5 —
1 UJ -
30.8 —
0.79 U —
63.5 589
Bottom
SSI-5 2.5-3.5'
10/27/92
Boring
(mg/kg)
19.2 U
8.6
0.65 U
3,520
17.7 J
0.44
33.9
1 UJ
24.8
0.81 U
61.6
Top
SSI-cO-l'
10/21/92
Boring
(mg/kg)
16.2
11.9
1.2
6,410
15.6 J
0.32
34.3 J
54 UJ
. 31.4 J
0 68 UJ
740
Middle Middle (Dup)
SSm-l.V SSI-6 1-1.5'
10/21/92 10/21/92
Boring Boring
(mj!/kg) (mg/kg)
— —
— . —
— —
6.210 6,330
— —
— —
— —
— —
— —
— ' —
69 4 69 4
Bottom
SSU 1.5-2.5'
10/21/92
Doling
(mg/kg)
14.6
«J
OJ7
2*90
a*j
0.23
3S.9 J
S.9UJ
15.0 J
0.74 UJ
675
Note: SSI - Small Surface Impoundment
Bold Value • detected
R • data rejected as unreliable (analyte may or may not be present)
U - undetected, value Is detection limit
J • value Is an estimated quantity
»ii^^^'
-------
TABLE 13 (Continued)
Small Sludge "Surface Impoundment"
Boring Sample Results
Total Constituent Inorganic Analyses
RCA del Carihe. Barceloneta, PR
PARAMETER
Arsenic
Railum
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
% Solid«
Top
ssi-70-r
10/28/92
Boring.
(mK/kft)
12.0
12.7
0.65
6,870
15.8
0.32
41.8
0.29 UJ
40.6 J
—
68.4
Middle Bottom
SSJ-7 1-1.5' SSI-7 1.5-2.5'
10/28/92 10/28/92
Boring Boring
(ms/lcg) (mg/lcg)
- 27.4
— 4.9
- 0.60 U
5,300 2.470
— 7.9
— 0.15 U
— 34.6
- 0.30 U
— 22.0 J
— . *• _„.
58.0 664
Top
ssi-so-r
10/28/92
Boring
(m«AR)
13.0
11.1
0.96
6.290
20.5
0.43
43.5
0.66
39.7 J
—
668
Middle Bottom
SSI -8 I -1.5' 551-61.5-2-5'
10/28/92 10/26/92
EVxtng Boring
(me/kg) (mfi/Vg)
— 23
- 44
- 0.75
5.140 2,050
— 10.6
- 0.15 U
— ' 3911
0.30 UU
- 19-3J
— — .
558 668
Note: SSI - Small Surface Impoundment
Bold Value - detected
R - data rejected a* unreliable (analyte may or may not be present)
U " undetected, value If detection limit
j - value is an estimated quantity
I )| - undetected, value ii estimate of detection limit «K qtuintit;iii«ii limn
-------
TABLE 14
»
Soils Investigation
Surface Composite Samples
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta. PR
PARAMETER
Anenk
IWium
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
% Solids
AAI-1
10/23/92
Composite
(mg/kg)
31.2 J
32.4
0.62
132
14.4 J
0.18
13.3 U
0.93 UJ
0.76
0.58 U
86.3
AA1-2
10/23/92
Composite
(mg/kg)
33.8 J
11.6
0.46 U
197
7.9 J
0.12 U
8.7 U
0.93 UJ
0.88
0.58U
86.3
AAJ-3 AAM AA1-5 AA!-5(lXip.) AAJ-6 AAJ-7
10/23/92 10/23/92 10/23/92 10/23/92 10/2 V92 10/13/92
Composite Compmiie Composite Gimpmite Composite Campame
(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/Vg)
35.3 J 26.1 20.9 J 32.3 J 35.6 J 42.4 J
8.7 17.9 31.6 20.2 7.4 16.9
0.47 U 0.48 0.49 U 1.2U 0.53 0.46 U
299 496 1.040 1.070 2.100 123
8.3J 7.7J 16.1 J 13. 4 J 12.8 J 12.9 J
0.12U 0.14 0.19 0.19 0.20 0.12U
12.2 U 17. 4 J 18 8 U 15.3 U 26.9 J 11. 1U
0.94 UJ 4.6UJ 0.97 UJ 0.97 UJ 1.0 UJ 0.93 UJ
2.4 3.6 J 6.2 J 6.7 J 17.7 J 6.63
0.59 U 0.58 UJ 0.61 U 0 61 U 0.63 U 0.58 U
85.2 86.3 82 2 82 2 79.3 86 4
Note*: AAI - Areas Around Impoundment*
Bold Value • detected
R - data rejected u unreliable (analyte may or may not be present)
U - undetected, value i> detection limit
-------
TABLE 14 (Continued)
Soils Investigation
Surface Composite Samples
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneia, PR
PARAMETER
Anenk
Barium
Cadmium
Chromium
Lead
Mercury
Nkkel
Selenium
Silver
Cyanide
% Solid*
AA1-8
10/23/92
Composite
(mg/kg)
29.8
21.3
0,74
1.460
18.7 J
0.20
28.8 J
1.0 UU
8.7 J
0.64 UJ
78.5
AAI-9
10/23/92
Composite
(mo/kg)
38.6 J
7.9
0.74
352
8.8 J
0.12 U
13.4 U
0.96 UU
1.7
0.60 U
83.7
AA1-IO
10/23/92
Composite
(mg/kg)
19.3 J
8.3
0.84
4.370
16.7 J
0.14 U
28.2 J
5.5 UU
22.1 J
0.69 U
72.5
AAI-II
10/23/92
Composite '
(mg/kg)
49.7 J
31.2
0.64
438
14.9 J
0.12 U
20.7 J
0.97 UJ
2.5
0.61 U
82.5
AAI-12
10/23/92
Composite
(mu/kf;)
70.5 J
55.6
2.4
167
24.3 J
0.14U
35.6 J
1.1 UJ
0.99
0.68 U
74.0
AAI-I)
10/23/92
Composite
67.6 J
26.4
1.5
1,170
25.2 J
0.13 U
39.5 J
1.1 UU
7.3 J
0.67 U
74.6
AAJ-14
10/23/92
Composiie
(mg/kg)
33.0 J
13.9
0.53 U
2.010
15.9 J
0.13 U
34.2 J
5.3UJ
12.0 J
0.66 U
75 6
AAJ-IS
10/23/92
<««**>
51.4 J
17.9
0.56
446
12.3 J
0.12 U
18.5 U
4.8UJ
3.0
0.60U
82 7
Note*: AAI - Area* Around Impbundmenti
Bold Value •detected
R - dam rejected M unreliable (analyte may or may not he pretent)
U - undetected, value U detection limit
J - value i» an estimated quantity
-------
TABLE 15
Soils Investigation
Soil Boring Sample Results
Total Conitituent Inorganic Analyses
RCA del Cant*, Barceloneta. PR
PARAMETER
Arsenic
Barium
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
% Solilfl
Top Middle
AAMO-2' AAI-12-4'
10/27/92 10/27/92
Boring Boring
(mg/kg) (mg/kg) .
27.3 U —
20.7 —
0.46 U —
136 107
13.9 J —
0.19 —
8.4 —
0.23 UJ —
0.46 U —
0.58 U —
86.7 89.8
Bottom
AAM 4-6'
10/27/92
Boring
(mg/kg)
19.9 U
3.4
0.44 U
84.3
4.4 J
0.14
4.6
0.22 UJ
0.44 U
0.55 U
906
Top Middle
AAI-20-21 AAI-22-4'
10/27/92 10/27/92
Boring FVxmg
(mg/kg) (ms/kg)
58.0 —
16.3 —
0.47 U —
152 260
7.6 J —
0.19 —
10.8 —
1 UJ —
0.63 —
0.59 U —
846 855
Bottom
AA1-2 46'
10/27/92
Boring
(mfi/Vg)
48.7
11.4
1 U
333
7.0 J
02 U
10.4
1 UJ
2.0
057U
884
Bottom (Dup.)
AAI-2 4-6*
10/27/92
Ben ing
(mg/Vg)
27.4
21.2
1 U
178
7JJ
02 U
16.3
1 UJ
0.75
0.59 U
842
AAI • Area Around Impoundment!
— • not analysed
Bold Value • detected
R - data rejected at unreliable (analyte may or may not be prestot)
U - undetected, value U detection limit
J • value is an ettimMed quantity
UJ - uiulflccted. value is estimate of detection limit nr ipuntit.itum limit
-------
TABLE 15 (Continued)
Soils Investigation
Soil Boring Sample Results
Total Constituent Inorganic Analyses
RCA del Caribe, Barccloneta, PR
PARAMETER
Anenic
Barium
Cadmium
Jnromium
Lead
Mercury
Nkkcl
Selenium
Silver
Cyanide
% Solid*
Top
AAI-3 0-2'
10/27/92
Boring
(mg/kg)
35.0
8.9
0.48 U
179
6.8 J
0.15
6.7
1 UJ
0.69
0.58 U
88.4
Middle
AAI-3 2-4'
10/27/92
Boring
(mg/kg)
—
—
• —
86.0
—
—
—
— (
—
—
87.0
Bottom
AAI-3 4-6'
10/27/92
Boring
(mg/kg)
40.6
20.6
0.47 U
99.1
6.1J
0.19
14.6
1 UJ
0.47 U
0.59 U
85 4
Top Middle
AAI-40-2' AA1-42-4'
10/27/92 10/27/92
Boring Boring
(mg/kg) (mg/kg)
27.3 —
7JS —
0.54 U —
1,650 235
6.2 J —
0.13 U —
26.5 —
0.27 UJ —
. 16.7 —
0.67 U —
74.6 858
Bottom
AAM 4-6'
10/27/92
Boring
(mg/kg)
46.1
10.5
046U
324
6.5 J
0.11 U
10.6
023 UJ
2.6
057U
874
AAI - Arts Around Impoundment!
not analyted
Bold V.lue • detected
R • data rejected as unreliable (analyte may or may not be present)
U - undetected, value U detection limit
J- value ii an ettimated quantity
I 'I - uivlrtrrrrsl - •!•* t» r«lim >ir <>f
-------
TABLE 15 (Continued)
Soils Investigation
Soil Boring Sample Results
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta, PR
PARAMETER
Artenk
Barium
Cadmium
^nromlum
Lead
Mercury
Nkkel
Selenium
Silver
Cyanide
% Solids
Top
AAI-50-2'
10/28/92
Boring
(mg/kg)
28.1
140
3.0
1,390
13.0
0.20
45.6
0.54 J
9.2 J
—
77.6
Middle
AA1-5 2-4'
10/28/92
Boring
(mg/kfi)
.
— -
85.7
—
• _^
—
—
— -
—
90.0
Bottom
AAI-5 4-6'
10/28/92
Boring
(mg/kg)
38.3
10.6
0.48 U
138
4.4
0.11 U
9.1 U
0.37
0.46 UJ
—
876
Top Middle Middle (Oup.)
AAI40-2' AAJ-62-41 AA1-42-4*
10/29/92 10/29/92 10/29/92
Boring Boring Boring
(mR/kg) (mft/kg) (mg/kg)
40.2 — —
9.5 — —
0.53 U — —
2,720 168 206
15.5 — —
OJZO — —
40.4 — —
0.26 UJ — —
18.6 J — —
. 0.66 U — —
75 6 87 3 86 4
Bonos
10/29/92
Boring
(mg/kg)
60.7
2.7
046U
165
4.8
0.12U
SOU
039 J
0.51 J
0.58 U
863
AAI - Area Around Impoundments
not analysed
Bold Value-detected
R - data rejected at unreliable (analyte may or may not be prewnt)
U - undetected, value U detection limit .
J - value is an estimated quantity
III - iimlrtertnl, valiir ii estimate of detection limit
-------
TABLE 15 (Continued)
Soils Investigation
Soil Boring Sample Results
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta, PR
PARAMETER
Arsenic
Barium
Cadmium
Chromium
Uad
Mercury
Nkkel
Selenium
Silver
Cyanide
%vSoltds
Top Middle
AA1-7 0-2' AAI-7 2-4'
10/28/92 10/28/92
Boring Boring
(mg/kg) (mg/kg)
31.0 —
18.8 —
0.46 U —
107 162
7.0 —
0.11 U —
11.9 U
0.68 —
0.46 UJ —
0.57 U —
87.6 840
Bottom
AAI-7 4-6'
10/28/92
Boring
(mg/lcfl)
65.1
25.1
0.68
151
10.2
0.31
19.1
0.61 J
0.40 UJ
061 U
820
Top
AA1-80-21
10/28/92
Boring
(mR/lcR)
39.a j
11.6
0.56
1,660
15.4
0.49
33.1
0.27 U
13.6 J
...
728
Middle Bonom
AAI-82-41 AA1-84-6'
10/28/92 10/28/92
Boring Boring
(mg/Vfi) (mg/Vg)
— 6.«
— 2-2
— 22 U
20.6 13.6
— 0.95
— 0.11 U
— 7.5 U
— 0 86 UJ
— 22 UJ
— ... •
936 930
AAl • Area Around Impoundments
• not analysed
Bold Value - detected
R - data rejected as unreliable (analyte may or may not he preterit)
U - undetected, value li detection limit
j • value is an estimated quantity
11| - undetected, value is estimate of delect ion limit or quamiution limn
-------
TABLE 15 (Continued)
Soils Investigation
Soil Boring Sample Results
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta, PR
PARAMETER
Aracnic
Bonum
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
% Solid*
Top Middle
AAI-90-21 AAI-92-4'
10/29/92 10/29/92
Boring Boring
(mg/kg) (mg/kg)
8.8
2.5
2.3 U —
377 171
2.2 —
0.12 U —
14.3 J —
0.93 U —
2.4 J —
0.58 U —
85.8 79.5
Bottom
AAl-94-o1
10/29/92
Boring
(mg/kg)
8.2
2.0
2.6 U
50.1
1.5
0.13 U
9.0 U
1.0 UJ
2.6 UJ
0.65 U
77.5
Top
AAMOO-2'
10/29/92
Boring
(mfi/kg)
19.6
8.0
0.54 U
2.820
94 J J
0.18
35.2 J
1.10U
18.3 J
0.68 U
• 736
Top(Dup.)
AAI-IOO-2'
10/29/92
Boring
(mR/kg)
16.8
7.1
0 51 U
2,430
20.1 J
0.22
34.7 J
1.0 UJ
15.7 J
0.64 U
781
Middle BOOM
AAM02-4' AAM04-6"
10/29/92 10/29/92
Bonng Boring
(mg/kg) (mg/Vx)
91.0
— 5-«
— 0.48 U
190 194
— 9.8
— 0.12 U
— 11.4U
— 0.95 U
— 13 J
— 0.60 U
860 84.0
AAI - Area Around Impoundments
•* not analyaed
Bold Value - detected
R - dan rejected as unreliable (analyte may or may not be present)
U - undetected, value It detection limit
j - value is an estimated quantity
-------
TABLE 15 (Continued)
Soils Investigation
Soil Boring Sample Results
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta, PR
PARAMETER
Arsenic
tarlum
Cadmium
Chromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
% Solids
Top Middle
AAM10-2k AAJ-II2-4'
10/28/92 10/28/92
Boring Boring
(mg/kg) (mg/kg)
57.7 —
33.9 —
0.73 —
177 128
14.2 —
0.17 —
21.7 J —
0.96 UJ , —
0.84 J —
0.81 U —
81.5 85.7
Bottom
AAI-IH-6'
10/28/92
Boring
(ms/kg)
48.1
18.8
0.47 U
126
10.9
0.16
14.0 J
0.94 U
0.47 UJ
0.58 U
85.5
Top Middle
AAM30-2' AAI-132-4'
10/30/92 10/30/92
Boring Boring
(mR/kg) (mg/kg)
29.2 —
29.6 —
1.3 —
232 5.3
11.4 J —
0.18 J —
64.4 J —
1.1 R —
2.7 UJ —
0.67 U —
74 9 86 6
Bottom
AAI-I) 4-4.8*
10/30/92
Boring
(mg/kg)
11.2
5.2
2.1 U
70.8
1.8 J
011 UJ
9.8 J
085R
21 UJ
053U
937
AAI - Area Around Impoundments
• not analyicd
Bold Value • detected
R • data rejected as unreliable (analyte may or may not be present)
U - undetected, value it detection limit
J • value U an estimated quantity
I )l • itcwlrtfcirtl. value Is efltim»re ofdrtectinn limit or quant nation limit
-------
TABLE 15 (Continued)
Soils Investigation.
Soil Boring Sample Result*
Total Constituent Inorganic Analyses
RCA del Caribe, Barceloneta, PR
PARAMETER
Arsenic '
fVarium
Cadmium
jnromium
Lead
Mercury
Nickel
Selenium
Silver
Cyanide
% Solid*
Top Middle
AA1-I40-2' AAI-142-4'
10/28/92 10/28/92
Boring Boring
(mfj/kg) (rag/kg)
42.1 —
20.3 —
0.48 U —
347 171
10.8 —
0.21 —
16.5 J —
0.97 UJ —
1.8 J —
0.60 U —
82.7 83.4
Bottom
AAI-144-4'
10/28/9Z
Boring
(ing/kg)
47.5
9.9
0.48 U
215
7.7
0.12 U
17.9 J
0.95 UJ
1.0 J
0.60 U
840
Top Middle
AAJ-150-21 AAI-152-4'
10/28/92 10/28/92
Boring Boring
(ing/kg) (mg/kg)
43.7 —
26.4 —
0.47 U —
349 131
9.3 —
0.16 —
17.3 J —
0 95 UJ —
2.6 J —
0 59 U —
846 830
Bottom
A Al 154-4*
10/28/92
Boring
(mg/kg)
32.9
7.4
0 47 U
124
6.3
0.16 •
13.3 U
094UJ
0.47 UJ
0.59 U
85 1
Note: AAI-12 boring could not be drilled due to the stetpmeu of the Rr.»Jr
AAI • Area Around Impoundment*
— • not analyzed
Bold Value - detected
R - data rejected m unreliable (analyte may or m.iy not be present)
U " undetected, value I* detection limit
) • value i» an eitimatcd quantity
.(•'.'.. .1 ,.„., ,
-------
TABLE 16
CERCLA OROUNDWATER DATA
ON-SITE WELLS
SELECTED MAJOR ION CHEMISTRY PARAMETERS
(WET CHEMISTRY METHODS)
RCADELCARIBE
BARCELONETA. PUERTO RICO
Wett ID
ROUND 1
Bicarbonate
Sample Date (mg/L)
Bromide
(mg/L)
Dissolved
Calcium Chloride
(mg/L) (mg/L)
Nitrate*/
Nitrite*
(mg/L)
Dissolved
Sodinm
(mg/L)
Sulfate
(mg/L)
(Before Artesian Well Repair)
MW-1 (S)
MW-1(D)
MW-2A (S)
MW-2A (D)
MW-3 (S)
MW-3(D)
MW-4(S)
MW-4 (S) (Dup)
MW-t(D)
Shallow Well
Artesian Well
ROUND 2
(After Artesian Well
MW-1 (S)
MW-1 (D)
MW-2A (S)
MW-2A (D)
MW-3 (S)
MW-3(D)
MW-4(S)
MW-4(D)
MW-5 (S)
MW-5(D)
MW-5 (D) (Dup)
Shallow Well (S)
Shallow Well (D)
05/04/90
05/04/90
05/07/90
05/07/90
05/09/90
05/09/90
05/08/90
05/08/90
05/08/90
11/02/89
11/02/89
Repair)
10/14/91
10/14/91
10/16791
10/16/91
10/17/91
10/17/91
10/17/91
10/18/91
10/14/91
10/14/91
10/14/91
10/16/91
10/16/91
205
213
199
207
228
252
301
299
300
228
227
219
219
217
203
264
267
027
306
214
278
279
229
231
1 U
1.48 R
2.96 R
5.93 R
1 U
1 U
1 U
1 U
1 U
1 U
1 U
1 U
1 U
1 U
1 U
1.5
2.0
1 U
3.0
1 U
1 U
1 U
1 U
2.0
191
290
108
96.4
147
149
146
155
168
95.4 CT)
91.7 CT)
468
529
117
125
141 J
137
143 J
157
133
139
140
113 J
109
440
256
44
22
145
124
96.3
102
128
25.7
9.3
827
812
59.4
91.6
114
89.6
35.6
105
290 ,
349
344'
57.4
33.2
1.36
1.65
4.32
2.43
2.80
2.48
1.63
3.91
1.54
1.58
1.66
2.49
2.13
2.50
1.55
2.67
2.26
0.87
0.91 •
5.08
6.21
6.06
1.42
0.48
72.7
88.5
17.7
18.1
49.3
46.5 J
69.3
69.3
67.7
9.47 (T)
5.93 (T)
157 J
140 J
21.2 J
28.6 J
42.3 J
39.9 J
30.6 J
54.5
168 J
254 J
260 J
21.9 J
17.4
19.1
19.6
14.5
8.5
11.6
5.5
65.0
61.0
55.4
5.1
<1.0
23
19,5
15
12.5
20.1
10.6
24.9
49
56.2
60.8
63.2
25.4
15
Artesian Well
10/15/91
176
1 U
67.9 J
15.3
0.04 U
11.1 J
15
Page 1 of 2
-------
TABLE 16 (Coatlmicd)
CBRCLAOROUNDWATBR DATA
ON-SITB WELLS
SELECTED MAJOR K>N CHEMISTRY PARAMETERS
(WET CHEMISTRY METHODS)
RCADBLCARIBE
BARCBLONETA. PUERTO RICO
Well ID
ROUND 3
(After Tracer Te«t)
MW-l (S)
MW-1 (D)
MW-2A (S)
MW-2A (S) (Dup)
MW-2A (D)
MW-3 (S)
M\V-3 (D)
MW-4 (S) .
MW-4(D)
MW-5 (S)
MW-5(D)
Shallow Well (S)
Shallow Well (D)
DiMelved Nitrate*/
Bicarbonate Bromide Calcium CUorldc Nkrta
S*a»ple D«e (mt/L) (m*/L) (ng/L) (0>*/L) (m*O.)
04/08/92
04/08^2
04/07/92
04/07/92
04/07/92
04/07/92
04/08/92
04/08/92
04/08/92
04/07/92
04/07/92
04/09/92
04/09/92
234
223
203
205
215
212
226
353
328
267
242
224
221
1 U
1 U
1 U
1 U
1 U
1 U
1 U
1 U
2.0
1 U
1 U
1 U
1 U
454
675
115
117
105
278
227
166
179
82.6
93.3
104
94.8
939 R
1220
60
708
41.7
?->4
!S'
48.1
95.3
56.3
835
508
18.2
38J
304
206
2.08
0.44
6.21
504
1.09
1.07
448
7.82
1.56
0.30
Dtadved
Sodium Sulft
-------
TABLB 17
CBRCLAOROUNDWATBR DATA
ON-SITB WELLS
SITE-ASSOCIATED PARAMETERS
RCA DEL CARIBE
BARCELONETA. PUERTO RICO
Well [D
ROUND 1
MW-I (S)
MW-1 (D)
MW-2A (S)
MW-2A (D)
MW-3 (S)
MW-3 (D)
MW-4 (S)
MW-4 (S) (Dup)
MW-4(D)
ROUND 2
MW-1 (S)
MW-1(D)
MW-2A (S) .
MW-2A (D)
MW-3 (S)
MW-3(D)
MW-4 (S)
MW-4(D)
MW-5^SJ
MW-5 (D)
MW-5 (D) (Dup)
Shallow Well (S)
Shallow Well (D)
Total
Chromium
Sample D«te (mg/L)
05/04/90
05/04-90
05/07/90
05/07/90
05/09/90
05/09/90
05/08/90 '
05/08/90
05/08/90
10/14/91
10/14/91
10/16/91
10/16^91
10/17/91
10/17/91
10/17/91
10/18/91
10/15/91
10/15/91 .
10/15/91
10/16/91
10/16/91
0.003 U
0.012 J
0 004 J
0.026 J
0.022 J
0.173
0.003 J
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.146
0.185
0.003 U
0.007
0.017
0.050 J.
0.123 J
0.003 U
0.003 U
DiMctvcd
Chromium
(mg/L)
0003 UJ
OOC3 UJ
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.010 U
0.010 U
0.010 U
0.003 U
0.003 U
0.003 U
Tool
Iron
(mg/L)
0023 R
0.581 J
1.33 J
9.81 J
7.24
59.4
0.543 J
0.156 J
0.626 J
0.187 U
0.580
0.673
1.07.
4.77
21.2
0.251 U
0.965
3.39
18.9 J
45.0 J
0.223 U
0.825
DiMolved
Iron
(mjt/L)
0004 UJ
0004 UJ
0,004 UJ
0.004 UJ
0004 UJ
0004 UJ
0.004 UJ
0.004 UJ
0.004 UJ
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
0.027 U
Artesian Well
10/15/91
0.003 U
0.003 U
9.68
0.027 U
Page I of 2
-------
TABLE 17 (CMbwwd)
CE»CLAOROUNt>WATER DATA
ON-STTBWBLL3
STTE-ASSOCIATED PARAMETERS
RCA DEL CARIBE
BARCELONETA, PUERTO RICO
WeUfD
ROUND 3
MW-l (S)
MW-1 (D)
MW-2A
-------
TABLE 18
CERCLA OROUNDWATER DATA
ON-SITB WELLS
SELECTED RCRA PARAMETERS
RCA DEL CARIBE
BARCELONETA. PUERTO RICO
Well ID
ROUND 1
MW-1 (S)
MW-1 (D)
MW-2A (S)
MW-2A (D)
MW-3 (S)
MW-3 (D)
MW-4 (S)
MW-4 (S) (Dup)
MW^t(D)
ROUND 2
MW-! (S)
MW-1 (D)
MW-2A (S)
MW-2A (D)
MW-3 (S)
MW-3 (D)
MW-4 (S)
MW^4(D)
MW-5 (S)
MW-5 (D)
MW-5 (D) (Dup)
Shallow Well (S)
Shallow Well (D)
Sample Date
05/04/90
05/04/90
05/07/90
05/07/90
05/09/90
05/09/90
05/08/90
05/08/90
05/08/90
10/14/91
10/14/91
10/16/91
10/16/91
10/17/91
10/17/91
10/17/91
10/18/91
10/14/91
10/14/91
10/14/91
10/16/91
10/16/91
Total .Total
Anenic* Barium
(mg/L) (mg/L)
0.001 U
0.001 U
0.001 U
0.002
0.0015 J
0.001 U
0.001 U
0.001 U
0.001 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002
0.002 U
0.002 U
0.003
0.007
0.006
0.002 U
0.002 U
0.012
0.016
0.007
0.011
0.014
0.037
0.011
0.010
0.015
0.031
0.031
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
0.030
0.047
0.067
0.002 U
0.002 U
Dinolved
Barium
(m*/L)
0.012
0.016
0.005
0.006
0.010
0.009
0.010
0.010
0.011
0.031
0.033
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
0.027
0.026
0.028
0.200 U
0.200 U
Total
Le»d»
(mg/L)
0.002 J
0.001 J
0.002 J
0.003 J
0.002 J
0.006 J
0.002 J
0.001 J
0.002 J
0.001 U
0.001 U
0.003 U
' 0.001 U
0.005 J
0.006 J
0.007 J
0.003
0.001 J
0.003 J
0.008 J
0.001 U
0.001 U
Tool
Mercury
(mg/L)
0.0002
0.0002
0.0002
0.0002
0.0002
0.0004
0.0002
0.0002
0.0002
0.0002
0.0007
0.0003
0.0003
0.0007
0.0027
0.0002
0.0008
0.0002
0.0002
0.0002
0.0002
0.0002
Dluolved
Mercury
(mg/L)
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0004
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
0.0002
Total Duuolved
Selenium 'Selenium
(mg/L) (oiR/L)
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
0.001 J
0.002 J
0.002 J
0.001 J
0.001 U
0.001 U
0.001 J
0.003 J
0.002 J
0.002 UJ
0.002 U
0.005 U
0.002 UJ
0.002 U
0.002 U
0.002 U
O.OC2 U
0.005 U
0.002 UJ
0.002 UJ
0.005 U
0.002
0.001 U
0.001 UJ
0.001 U
0.001 UJ
0.001 U
0.001 U
0:001 J
0.001 J
0.001 J
0.002 U
0.002 U
0.005 UJ
0.002 U
0.002 U
0.002 UJ
0.002 U
0.002 U
0.005 U
0.002 U
0.002 U
0.005 UJ
0.003 J
Artesian Well
10/15/91
0.002 U 0.002 U 0.200 U 0.003 U 0.0002 U 0.0002 U 0.002 U 0.002 U
Page 1 of 2
-------
TABLE }g (Coottowd)
CBRCLAOROUNDWATBR DATA
ON-Srre WELLS
SELECTED RCRA PARAMETERS
RCA DEL CARIBE
BARCELONETA. PUERTO RICO
Well ID
ROUND 3
MW-I (S)
MW-1 (D)
MW-2A(S)
MW-2A (S) (Dup)
MW-2A (D)
MW-3(S)
MW-3 (D)
MW-4 (S)
MW-4 (D)
MW-5 (S)
MW-5(D)
Shallow Well (S)
Shallow Well (D)
Simple Date
04/08/92
04/08/92
04 .'07/92
04/07/92
04/07/92
04/07/92
04/08/92
04/08/92
04/08/92
04/07/92
04/07/92
04/09/92
04/09/92
Toul
Arsenic*
(n>g/L)
0003
0.003
0003
0.003
0003
0003
0.003
0.003
0.003
0.003
0.003
0.003
0.034
Toul
Barium
(mg/L)
U
U
U
U
U
U
U
U
U
U
0034
0042
0008
0.008
0008
0019
0.200. U
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
DiMolved
Barium
(«g/L)
0035
0045
0.200 U
0.200 U
0 200 U
0.020
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
0.200 U
Toul
Lead*
-------
TABLE 19
CEKCLA OROUNDWATBR DATA
ON-STTB WELLS
DETECTED OROAN1C3 IN OROUNDWATER SAMPLES
RCA DEL CARIBE
BARCELONETA. PUERTO RICO
WeU ID
Sample D«ie
Compound
Concentrmtioa (mf/l.)
ROUND I
MW-2A (S)
OS/07/90
Carbon Ditulfidc
VoUtiJe
ROUND 2
MW-4 (5)
MW-4(D)
Artesian Well
10/17/91
10/18/91
10/15/91
Tetrachlorethylene
Tetrachlorcthylene
2-ButAnonc
.0006 J
0.003 J
0003 J
Volatile
Volatile
Volatile
ROUND 3
MW-3 (S) "
MW-4(S)
Aftesiin WeU
04/07/92
04/08/92
04/08/92
04/09/92
Methylcne Chloride 0.003 J Volatile
Tetrachloroethylcne 0.009 } Volatile
Tetrachlorethylene 0.005 J Volatile
Bis(2-Ethylhexyl)Phthalate 0.160 Semi-Volatile
NOTES:
J - The associated value is an estimated quantity.
-------
TABL8 20
RCRA OROUNDWATBR DATA
ON-STTB WELLS
StTE-ASSOCIATED AND SELECTED RCRA PARAMETERS
RCADBLCARIBB
BARCELONETA. PUERTO RJCO
Well ID
ROUND 1
MW- 1
MW-2A
MW-2A (Dup)
MW-3
MW-4
MW-5
Shallow Well
Artesian Well
ROUND 2
MW-1
MW-2A
MW-3
MW-4
MW-4 (Dup)
MW-5
Shallow Well
Artesian Well
Sample Date
09/24/91
09/25/91
09/25/91
09/24/91
09/26/91
09/25/91
10/16/91
10/15/91
12719/91
12/19/91
12/19/91
12/19/91
12/19/91
12/19/91
12/18/91
12/18/91
Total
Chromium*
<«*/L)
0.058
0.010 U
0.010 U
1 870
0.016
0.033
0.003 U
0.003 U
0.010 U
0.010 U
0.010 U
0.010 U
0.010 U
0.010 U
0.010 U
0.010 U
Total
LMd*
-------
TABLE 20 */L)
0063
0035
0010 U
0.017
0.111
0.074
0.012
0.010 U
0.057
0.010 U
0.010 U
0.010 U
0.023
0.018
0.010 U
0.010 U
Toul
Lead*
<»«/L) •
0023
0017
0008
0003 U
0.014
0.005
0.004
0.009
0.013
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.007
Tout
Mercury
(mR/L)
00016
0.0016
0.0002 U
0.0002 U
0.0052
0.0002 U
0.0002 U
0.0002 U
0.0020
0.0002 U
0.0002 U
0.0002 U
0.0004
0.0002 U
0.0002 U
0.0002 U
DlMolved
Mercury
(mg/L)
00003
00002 U
00002 U
0.0002 U
0.0028
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
• - Dissolved Chromium and Dissolved Lead were not detected in any groundwater samples
U - Compound was not delected.
Pepe 2 of 2
-------
Well tD
TABLE 21
RCRA OROUNDWATBR DATA
ON-SfTB WELLS
DETECTED OROAN1CS IN OROUNDWATER SAMPLES
RCA DEL CARIBE
BARCELONETA. PUERTO RJCO
Sample Date
Compound
Cone«ntntloQ (mt/L)
Type
ROUND I
Artetian Well
MW- 1
ROUND 2
Artesian WeU
ROUND 3
MW-1
MW-5
MW-4
MW-4
10/15/91
09/24/92
12/18/91
03/24/92
• 03/24/92
03/25/92
03/25/92
Methyl Ethyl Ketone
Bii<2-Ethy!hcxyl)PhthaUle
Toluene
Acetone
Acetone
Tetrtchloroethylene
BU(2-Ethylhexyl)Phthalate
0003
0012
0.007
0.015
0.039
0.010
0.016
Volatile
Semi -Volatile
Volatile
Volatile
Volatile
VolatUe
Semi-Volatile
ROUND 4
MW-1
MW-3
06/22/92
06/22/92
Bis(2-Ethylhexyl)PbthAlate
Bis(2-Ethylhexyl)Phtha]ate
0.020
0.014
Semi-VolatUe
Semi-Volalile
-------
TABLE 22
RCRAOROUNDWATER DATA
ON-ftlTB WELLS
FIELD QA/QC DATA
RCA DEL CARIBE
BARCELONETA. PUERTO RJCO
Well ID
Sample Date
Compound
Concentration
Type
ROUND 1
Ruiwlc/Filtrate Blank 1 1
RinsAtcVFillrate Blank *3
ROUND 2
Trip Blank #1
Trip Blank n Phthalate 0017
12/18/91 Acetone 0.029
12/19/91 Mcthylene Chloride 0.006
Volatile
Volatile
Volatile
Volatile
ROUND 3
None
ROUND 4
Equipment Rinse Blank
06/20/92
Methylene Chloride
0.007
Volatile
NOTES:
For all rounds. speciTied inorganic parameters were below detection limits for all
field QA/AC samples.
-------
TABLE 23
CERCLA OROUNDWATER DATA
OFF-SITB WELLS
MAJOR IONS
RCADELCARJBE
BARCELONETA, PUERTO RICO
ROUND 1
Well ID
UpJ-9
UpJ-14
UpJ-15
UpJ-18
UpJ-22 (Top)
UpJ-22 (Bottom)
UpJ-22 (Purged)
PoUera
PRASA Garrochales
L. Rios
I. Acevedo Vazquez
(Duplicate)
P. Rivera Hernandez
E. Martinez
A. Mena
A. Ramos
Simple
Date
04/28/92
04/27/92
04/28/92
04/28/92
04/29/92
04/29/92
04/29/92
04/29/92
04/30/92
04/29/92
04/30/92
04/30/92
04/29/92
04/30/92
04/30/92
04/29/92
Bicarbonate
(mg/L)
228
52
162
193
223
208
229
221
261
244
272
265
274
289
. 264
257
Dittolved
Bromide Calcium
(mg/L) (m«/L)
1 U 128
3.96 126 J
3.96 74.4
1 U 92.1
3.47 116
18.8 298
1 U 116
1.49 105
1 U 102
1 U 106 J
1 U 105
2.97 105
I U 111
1 U 131
1 U 128
1 U 117
Chloride
(mg/L)
27.4
128
11.7
29.4
130
5.720
156
280
137
158
168
165
264
98.8
135
118
Nitrate*/
Nitrite*
(mg/L)
33.6
9.37
4.62
3.29
9.45
2.58
9.67
7.67
2.83
3.36
2.36
6.87
2.82
7.6
2.95
2.3
Diuolved
Sodium Sulfate
(mg/L) (mg/L)
9.1 2
92.9 1 U
8.48 -11.2
1.1.5 9.3
58.8 20
3.000 290
77.1 19.5
167 43.7
74.4 27.6
82.5 29.6
90.5 35.3
90.3 34.8
169 J 65.4
55.5 25.5
73.2 31.4
67.4 27
Page 1 of 2
-------
TABLE -231 (Caodmied)
CERCLA GROUNDWATER DATA
OFF-OTB WELLS
MAK)R IONS
RCADELCAJUBE
BARCELONETA, PUERTO RICO
ROUND 2
WELL
UpJ-9
UpJ-14
UpJ-15
UpJ-18
UpJ-22 (Top)
UpJ-22 (Bottom)
UpJ-22 (Purged)
Pollen
PRASA GaVrochales
L. Rios
I. Acevodo Vazquez
P. Rivera Hernandez
E. Martinez
A. Mena
. (Duplicate)
A. Ramos
NOTES:
Sample
Date
06/24/92
06/23/92
06/23/92
06/24/92
—
06/29/92
06/29/92
06725/92
06/25/92
06/29/92
06/25/92
06/25/92
06/24/92
06/25/92
06/25/92
06/29/92
Bkarbonate
<«ng/L)
233
244
164
205
223
268
218
250
248
285
277
289
282
274
289
Dioolved
Bromide Calcium
(mg/L) (»g/L)
2.98 127
4.47 126
8.94 73.8
1.99 92.5 J
— —
20.9 332
1 U 113 J
3.48 110 J
36.8 110
1.49 104
3.48 109
2.98 112
1 U 137
38.2 73.2
1 U 131
2.48 113
Chloride
(mg/L)
18.5
120
12.3
26.4
—
6.900
148
272
148
126
155
247
95.8
121
140
120
Nitratei/
Nitrites
-------
TABLE 24
CBRCLAOROUNDWATBR DATA
opp-srre WELLS
SITE ASSOCIATED METALS
RCADBLCARJBB
BARCELONETA. PUERTO RICO
ROUND 1
Well ID
UpJ-9
UpJ-14
UpJ-lS
UpJ-18
UpJ-22 (Top)
UpJ-22 (Bottom)
UpJ-22 (Purged)
Pollera
PR AS A Garrochales
L. Rios
I. Acevedo Vazquez
(Duplicate)
P. Rivera Hernandez
E. Martinez
A. Mena
A. Ramos
Sample
D«te
04/28/92
04/27/92
04.^8/92
04/28/92
CM/29/92
04/29/92
04/29/92
04/29/92
04/30/92
04/29/92
04/30/92
04/30/92
04/29/92
04/30/92
04/30/92
04/29/92
Total Dtaolved
Chromium Chromium
(ag/L) (m«/L)
0004
0010 U
0003
O.OOS
0.006
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.010 U
0.010 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.010 U
0002 U
0.002 U
. 0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0,002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
Total
Iron
<»«/L)
1 83
0 100 U
0.100 li
0.100 U
1.37
1.64
0.100.U
0.100 U
0.100 U
0.100 U
0.230
0.207
0.148
0.209
0.100 U
0.100 U
DiMolvtd
boo
(mg/L)
0.003 U
0003 U
0.003 U
0.100 t
0.003 U
0.003 I)
0.003 U
0.100 U
0.003 U
0.100 U
0.054
0.049
0.017
0.009
0.003 U
0.003 U
Page 1 of 2
-------
A. Ramos .
TABLE 24 (Continue*!)
CBRCLA OROUNDWATER DATA
OPF-SITB WELLS
«TB ASSOCIATED METALS
RCADELCARIBE
BARCELONETA. PUERTO RICO
ROUND 2
Well ID
UpJ-9
UpJ-14
L'rd-15
UpJ-18
UpJ-22 (Top)
UpJ-22 (Bonom)
UpJ-22 (Purged)
Pollera
PR AS A Garrochales
L. Rios
I. Acevedo Vazquez
P. Rivera Hernandez
E. Martinez
A. Mena
(Duplicate)
Sample
Dale
06/24/92
06/23/92
06/23/92
06/24/92
—
06/29/92
06/29/92
06/25/92
06/25/92
06/29/92
06/25/92
06/25/92
06/24/92
06/25/92
06/25/92
Tout
Chromium
0.014
0009
0004
0.010 U
—
0.002 U
0.002 U
0.002
0.002 U
0.002 U
0.002 U
0.004
0.002 U
0.002 U
0.002 U
DtMolvod
Chromium
0.002 U
0010 U
0.002 U
0.002 U
—
fl.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
0.002 U
Total
Iron
0.140 U
1.22 .
0.100 U
0.100 U
—
2.91
0.100 U
0.100 U
0.100 U
0.100 U
0.191
0.065
0.100 U
0.100 U
0.100 U
Dittolved
boo
0.008 U
0.008 U
0008 U
0.008 U
—
0.008 U
0.008 U
0.008 U
0.008 U
0.008 U
0.058
0.015
0.008 U
0.100 U
0.008 U
06/29/92
0.002 U
0.002 U
0.100 U
NOTES:
Hexavalent chromium was not measured above detection limits in any off-site samples.
J - The associated value is an estimated quantity.
U - The material was analyzed for, but was not detected above the level of
the associated value.
UJ - The material was analyzed for, but was not detected. The associated
value, which is either the sample quanlilation limit or the sample
detection limit, is an estimate and may not be accurate or precise.
R - The data are unusable; analyte may or may not be present in the sample.
0.008 U
Page 2 of 2
-------
ROUND I
TABLE 25
CERCLA OROUNDWATBR DATA
OFP-SITB WELLS
ADDITIONAL RCRA PARAMETERS
RCADBLCARIBB
•ARCBLONETA. PUERTO RICO
Well ID
UpJ-9
l'pJ-14
UpJ-15
.UpJ-18
UpJ-22 (Top)
UpJ-22 (Bonom)
UpJ-22 (Purged)
PoUera
PRASAGarrochales
L'Rios
I. Acevedo Vazquez
(Duplicate)
P. Rivera Hernandez
E. Martinez
A. Mena
A. Ramos
Simple
D*le
04/28/92
W/27/92
04/28/92
04/28.-92
04/29/92
W/29/92
04/29/92
04/29/92
04/30/92
04/29/92
04/30/92
04/30/92
04/29/92
04/30/92
04/30/92
04/29/92
Toul
Lod
0.003 U
0003 U
0.003 U
0.003 U
0.012 J
0.003 U
0.003 U
0.003 U
0.003 U
0.003 U
0.005 UJ
0.006 U
0.004 U
0.001 UJ
0.003 U
0.003 U
DUMlved
Letd
0.001 U
0001 U
0.001 U
0.001 U
0.001 U
0.002 R
0.001 U
0.001 U
0.001 U
0.001 U
0.001
0.002 R
0.001 U
0.001 U
0.001 U
0.001 U
Toul
Mercury
(Bji/L)
0.0002 U .
0.0002 U
0.0025
0.0002
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0007
0.0002 U
0.0002 U
0.0002 U
DUwlved
Mercury
00002 U
00002 U
00002 U
0.0002 U
0.0002 U
. 0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0002 U
0.0004
0.0002 U
0.0008 U
0.0002 U
Page 1 of 2
-------
TABLE 25 (Continued)
CBRCLAOROUNDWATER DATA
OFP-SfTB WELLS
ADDITIONAL RCRA METALS
RCADELCAR1BE
BARCELONETA. PUERTO RICO
ROUND}
Well ID
UpJ-9
L'pJ-14
UpJ-15
UpJ-18
UpJ-22 (Top)
UpJ-22 (Bottom)
UpJ-22 (Purged)
Pollera
PRASA GarrochaJes
L. Rios
I. Acevedo Vazquez
P. Rivera Hernandez
E. Martinez
A. Mena
(Duplicate)
A. Ramos
NOTES:
Sample
06/24/92
06/23/92
06/23/92
06/24/92
—
06/29/92
06/29/92
06/25/92
06/25/92
06/29/92
06/25/92
06/25/92
06/24/92
06/25/92
06/25/92
06/29/92
Total
Lead
0.001 U
0001 U
0.001 U
0001 U
—
0.005 UJ
0.001 U
0.001 U
0.001 U
0.003 U
0.003 U
0.002
0.001 U
0.001 U
0.001 U
0.003 U
DfaMlvcd
LMd
0.001 U
0.001 U
0.001 U
0.001 U
. —
0.004 R
0.001 U
0.001 U
0.001 U
0.001 U
0.001 U
0.001 U
0.001 U
0.003 U
0.001 U
0.001 U
Total
Mercury
0.0002 U
00002
0.0002 U
00002 U
—
00002 UJ
0.0002 UJ
0.0002 U
0.0002 U
0.0002 UJ
0.0002 UJ
0.0004
0.0002 U
0.0002 U
0.0002 U
0.0002 UJ
DiMblved
Mercury
(o>|t/L)
0.002 UJ
0.002 UJ
0.002 UJ
0.002 UJ
0.002 U
0.002 U
0.002 UJ
0.002 UJ
0.002 U
0.0002 U
0.0004 J
0.0002 UJ
0.0002 UJ
0.0002 UJ
0.0002 U
J - The associated value is an estimated quaniry.
U - The material was analyzed for. but was not detected above the level of the associated value.
The associated value is either the sample quanlitation limit or the sample detection limit.
UJ - The material was analyzed for. but was not detected. The associated value, which is
either the sample quantila'.ion limit or the temple detection limit, is an estimate
end may or may not be accurate.
R - The data are unusable; Analytc may or may not be present in the sample.
Page 2 of 2
-------
APPENDIX HI
-------
RCA DEL CARIBB 8UPBRJOND SITE
ADMINISTRATIVE RECORD FILE
INDEX 07 DOCUMENTS
1.0 BITE IDENTIFICATION
1.1 Background - RCRA and other Information
P. 100001-
100006
P.
Report: Resource Conservation and Recovery Act.
Lagoon Closure Plan for RCA Corporation. Picture
Tube Division. RCA Del Caribe. Inc. .
Barceloneta. Puerto Rico, prepared by Betz,
Converse, Murdoch, Inc., November 1981.
1.3 Preliminary Assessment Reports
P. 100007- Report: Preliminary Assessment. RCA del Caribe.
100027 P.R. . (undated) .
1.4 Site Investigation Reports
100028-
100065
Report: RCA del Caribe, Inc.. Barceloneta. Puerto
RJCO. Final Draft Report, Site Investigation
Impoundment closure Program, prepared by BCM
Eastern Inc., submitted to U.S. EPA, Region II,
October 5, 1983.
3.0 REMEDIAL INVESTIGATION
3.1 sampling and Analysis Plans
300001- Report: General Electric Company RCA del Caribe
300150 Facility. Barcelonetar Puerto Rico. Amended May
1991. Site Operations Plan. Sampling Plan and
Health and Safety Plan, prepared by Keystone
Environmental Resources, Inc., Amended May 1991.
300151- Report: Quality Assurance Procedures and Standard
300182 Operating Procedures for the Tracer Test and the
Injection/Withdrawal Test at the General Electric
Company. RCA Del Caribe Facility. Barceloneta.
Puerto Rico, prepared for General Electric
Company, prepared by Hydro Geo Chem, April 9,
1990.
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P. 300183- Report! Quality Assurance Preset Plan,
300404 Remedial Investigation. General Electric Company.
RCA Dal Caribe Facility, Barcelonetaf Puerto Rico.
prepared by The Chester Engineers, September
1989 (Revision No. 2).
3.3 Work Plans
P. 300405-
300703
P. 300704-
300781
P. 300782-
300996
P. 300997-
301078
Report: RCA Del Caribe. Inc.. Barceloneta. Puerto
Rico. Pelleting Petition Work Plan for Accumulated
Wastewater Treatment Sludge and Associated Soil.
prepared for General Electric Company, prepared by
Keystone Environmental Resources, Inc., October
1992.
Report: RCA Del Caribe Superfund Site.
Barceloneta. Puerto Rico. Flow Path Study Work
Plan (Revised May 1992). prepared for General
Electric Company, prepared by Keystone
Environmental Resources, Inc., May 1992.
Report: General Electric Company. RCA Del Caribe
Facility. Barceloneta. Puerto Rico. On-Site Tracer
Test Work Plan, prepared for General Electric
Company, prepared by Hydro Geo Chero, Inc., May 23,
1991. •
Report: General Electric Company. RCA Del Caribe
Facility. Barceloneta. Puerto Rico. Remedial
Investigation Work Plan, prepared by The Chester
Engineers, May 1988.
3.4 Remedial Investigation Reports
P. 301079-
301599
Letter to Ms. Carole Peterson, Chief, New
York/Caribbean Superfund Branch II, U. S.
EPA, Region II, from Mr. Daniel A. Lovingood,
P.G., Project Coordinator, de maximus, inc., re:
RCA del Caribe Superfund Site, Barceloneta, Puerto
Rico, Delisting Petition Addendum to Draft
Remedial Investigation Report, Docket No. II
CERCLA - 89-80302; RCRA - 88-0303, August 27,
1993. Attached Report: gl Addendum: Delisting
Petition for Accumulated Wastevater Treatment.
jSludqe and Associated Soil. RCA Del Caribe. Inc..
Barceloneta. Puerto Rico, prepared for General
Electric Company, prepared by Nittany Geoscience,
Inc., August 1993.
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P. 301600- Report: Remedial Investigation Report for RCA Pe]
301884 Caribe. Inc.. Barcalonata. Puerto Rico, prepared
for General Electric Company, prepared by Nittany
Geoscience, Inc., March 1994.
P. 301885- Report: Remedial Investigation Report for RCA
302517 Caribe. Inc.. Barceloneta. Puerto Rico. Volumq
II of III. Appendices A through G. prepared for
General Electric Company, prepared by Nittany
Geoscience, Inc., March 1994.
P. 302518- Report: Remedial Investigation Report for RCA
302991 Caribe. Inc.. Barceloneta. Puerto Rico. Volume
of III. Appendices H through S. prepared for
General Electric Company, prepared by Nittany
Geoscience, Inc., March 1994.
7.0 ENFORCEMENT
7.2 Endangerment Assessments
P. 700001- Report: RCA del Caribe Site. Barceloneta. Puerto
700040 Rico. Baseline Risk Assessment of Groundwater.
Soil, and Wastewater Treatment Sludge Surface
Impoundments. prepared by U.S. EPA, Region II,
April 19, 1994.
7.3 Administrative orders
P. 700041- Administrative Order on Consent, In the Matter
700088 of General Electric Company (as Successor to RCA) ,
Docket No. II, CERCLA-88-80302 & RCRA-88-0303,
March 31, 1988. Attached Report: Attachment 1;
Statement of Work. RCA Del Caribe. Administrative
Order on Consent, (undated).
8.0 HEALTH ASSESSMENT
8.1 ATSDR Health Assessments
p. 800001- Report: Assessment of the Human Health Risks
800030 Associated with Ground Water and Soil Constituents
at the RCA del Caribe Site, prepared by U.S.
EPA, Region II, June 17, 1993.
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P. 800031- Memorandum to Mr. Alberto Bosque, Remedial Project
800034 Manager, U.S. EPA, Region IX, from Mr. William
Nelson and Ms. Denise Johnson, Department of
Health ft Human Services, Agency for Toxic
Substances and Disease Registry (ATSDR), Regional
Representatives, re: Completed Health Assessment,
February 15, 1989. Attached Report: Preliminary
Health Assessment for RCA del Caribe. Inc..
parceloneta. Puerto Rico. January 19, 1989.
10.0 PUBLIC PARTICIPATION
10.2 Community Relations Plans
P. 10.00001- Plan: CoTrnnunitv Relations Plan for RCA del
10.00034 Caribe. Barceloneta. Puerto Rico, prepared
for U.S. EPA, prepared by Booz, Allen & Hamilton
Inc., January 16, 1992.
10.3 Public Notices
P. 10.00035- Public Notice: "The U.S. Environmental
10.00035 Protection Agency (EPA) Invites Public Comment on
the Proposed Remedial Action Plan for RCA del
Caribe Sup.erfund Site, Barceloneta, Puerto Rico,"
prepared by U.S. EPA, Region II, July 18, 1994.
P. 10.00036- Public Notice: "La Agencia Federal De Proteccion
10.00036 Ambiental (EPA) Invita A Comentario Publico Sobre
el Propuesto Plan de Accion Remediadora Para RCA
del Caribe Bajo el Programa del Superfondo,
Barceloneta, Puerto Rico," prepared by U.S. EPA,
Region II, (undated). (Note: This document is
written in.Spanish.)
10.9 Proposed Plan
P. 10.00037- Plan: Superfund Proposed Plan. RCA del Caribe.
10.00042 Barceloneta. Puerto Rico, prepared by U.S. EPA,
Region II, July 1994.
P. 10.00043- Plan: plan Propuesta del Superfondo. RCA del
10.00048 Caribe. Barceloneta. Puerto Rico, prepared by U.S.
EPA, Region II, July 1994. (Note: This document
is written in Spanish.)
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10.10 Correspondence
P. 10.00049- Letter to Mr. Adalberto Bosque, Remedial Project
10.00049 Manager, U.S. EPA, Region II, from Mr. Hector
Russe Martinez, Chairman, Commonwealth of Puerto
Rico/ Office of the Governor, Environmental
Quality Board, re: RCA Del Caribe-Proposed Plan,
July 8, 1994.
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APPENDIX IV
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SEP-28-1994 17=22 FROM EPfl
*
TO
B2122647611 P.02
8UPF,-» 809 721 7748 i» 8
COMMONWEALTH OF PUERTO RICO /OFFICE OF THE GOVERNOR
ENVUIONMENTAL QUALITY BOARD
SUPERFUND PROGRAM
September 24, 1994
Eng. Adaloerto Bosgue
Remedial Project Manager
U.S. Environmental Protection Agency
Region II, Caribbean Plaid Office
Sult« 417, Cantro Europe
14B2 Ponoe de Leon AT*.
Santurce, Puerto Rico 00008
REPi DECLARATION FOB THE
RBCOKD OF DECISION
BCADelCartba
PR
Dear Mr* Bosque:
The Puerto Rico Environmental Quality Board (FREQB) received a draft copy
of the Declaration for the Record of Decision (ROD) for the RCA del Carlbe site.
-Rased on the revision at the document and as itated on a letter sent to you on July
8* 1904, the PB£QB concurs with the USEPA'a preference for "no action" as the
remedial alternative for the site, under the Coznprehenaive Environmental Rftaponae,
Compensation, and Liability Act (CERCLA).
. After reviewing the document, however, the PBJBQB have various coonoeate
and requests, that we have enclosed as an annex to this letter. In addition, we will
appreciate if you answer these in written and keep ue informed of any future
developments about this case. *
If there are any questions regarding this matter, please contact Ms. Mercedes
Padflla, RPMfor the site, or, Mr. Miguel A. Maldonado, RPM/ CORE Sections Chief,
at 756-8875.
Cordially,
MPV/MAM/lnJ
Green forests and crystalline waters, clean air and clear skies.
I Tort protect nTe if you do not contaminate!
NATIONAL BANK PLAZA / 481 PONCE DE LEON AVE. / BATO REY, PUERTO BJCO 00917
. P.O. BOX 11488 / 3AKTUECB, PUERTO RICO 00810 / (S09) 764*8824
i -* '^n
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SEP-28-1994 17:22 FROM EPfl TO 82122647611 P.03
out. DT^O, v, * CM&I • BUPf, J 9-2B-i4 i |:S7Ptl t gNERQENCIAS I 8UPF.-» 809 728 7749 ',9 »
Bsoord of Decision. ?*M2ef4
BCAdelCaribe.
A. General ooonents:
On the third of the version BOD received an September 21 , 1994, the section
on "Declaration of Statutory Determinations* include the following statement :
»«•
"A five (5) year review is not required for the EGA del Caribe Site because
no hazardous substances remain at the Site above health-baaed levels."
The PREQB strongly deaagree with this waiver. If this decision persists we
will require the elimination of any phrase (e . g. in colsultation with BQB } that
may suggest any kind of PREQB aggrement with this statutory determination.
B. Specific comments:
1 . Page 2, Second paragraph {Third paragraph on revised version of Sept. 21) ,
."Two sludge impoundments are located southeast of the former ferric chloride
lagoons . This area is secured by a six-foot high chain-link fence with locked
--- __ . gate*-", ' •
On our visit to the facility on June 8, 1994 we saw that the locked gates are
missing, in fact, the sludge surface impoundments are fenced but the
entrance have only some barbed wire.
9 . Page 5 , First paragraph (Second paragraph on revised version of Sept . 21} .
Please include as an explanatory note that aH hoU^ng times for chromium
analysis were exceeded and, hence , the data presented is an estimate.
3. Page 7, paragraph 4 (Page 8, first paragraph on revised version of Sept. 21) .
"The baseline risk assesment began with selecting contaminants. . ."
Chloride was not considered in the Baseline Bisk Assessment because it does
not represent any health risk, no matter the concentrations exceeds thirty
times the secondary MCL of 290mg/l. As -night be of your knowledge,
however, groundwatar within the RCA site is extensively .used for irrigation
purposes (i.e. pineapple growing industry). Based on that, we will like to
know if as part of tha Baseline Bisk Assesment, it will be appreciate to
consider the potential risk to the environment , in order to evaluate the effects
of chorine contaminated greundwater on irrigated crops .
PB5QS. September 1994.
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Record of J&edsion. Page 3 of 4
BCA del Carfbe.
4. Page 9, paragraph 3 (Paragraph 5 on revised version of Sept. 91).
"Most commentars accepted th« no motion decision".
During the public meeting of July 27, 1994« some students working with the
EPA Caribbean Field Office and two law students (who ware/ not from tbe
Barcelonata Community) were present. These students were interested mainly
in tbe public meeting process, and their comments were only explanatory.
Brva though tney ware EPA guevta, they did not pronounea themselves in
favor or against the EPA's selected no action alternative. Other parties
present were the Caribbean Field Office, the Puerto Rico Environmental
Quality Board (PREQBj, General Electric (GE), the Mayor of Barcelona ta, his
assistant, and a delegation of the Puerto Rico Aqueduct & Sewer Authority
(PRASA). The Mayer agreed with tba EPA's no action dedaian. ThePRASA
delegation was the only party that raised concerns during the public meeting
regarding the remedial investigation, and the EPA's no action decision.
Please note that the above sentence can be misunderstood as written, and does
not reflect the lack of participation of the community member*. We suggest to
eliminate this sentence and be specific about the position of the municipality
and PRASA, tbe only two parties who agreed or disagreed with the EPA's no
action decision during public comment period.
5. Appendix £> page 1, paragraph4. • .
"Approximately 14 people attended".
Please refer to a copy of the attendance list to the public meeting, and attach
it as part of the Responsiveness Summary. On August 8, 1994, the PREQB
requested this list but we have not received It yet. Please note that only
governmenti municipal officials, and students, who were net from the
municipality of Barceloaeta, attended. Refer to comments 15 and f 7 and be
more specific.
6. Appendix E, Page 1, paragraph 6 (Appendix V on revised version of Sept 21).
"Based on the comments noaived during the public commetat period, SPA
believes that the. residents and town officials of Barceloneta are in agreement
with the remedy and supported EPA's preferred alternative."
Based on .the public-meeting assistance and the written comments, we do not
agree to assume that residents are in agreement with the no action decision
just because they did not participate during the publio. comment period. We
suggest, therefore, tbe elimination of .the word residents from this sentence.
Refer to comments | 5 and I 8.
PBEQB. September 1884.
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SEP-28-1994 17:23 FTOM EPfl TO 82122647611 P.05
SENT BYJJ.C.A. ENEQ,e SUPF, 5 9-28-94 J 3:58PM ; EMERQENCZAS * SUPF,-* BOi 728 9748 i* 6
•
Record of Dedalon. F*ge4of4
RCA del Cariba.
We also understand that PRASA submitted to you written comment* within the
public comment period and they do not oonour with tht "no action" alternative
aelected oy EPA. Please refer to comment fB.
"At the public meeting, citizens and loeal officials did not raise any objections
. to the Proposed Plan or to EPA's preferred no-action decision".
Please replace the word citizens for attendants. See the explanation for
comments #3 and f 8. Please make sure that the ROD includes an the different
points of view.
7. Appendix E, Part II, Section A, Summary of oral questions and responses
from the public meeting concerning the RCA del Caribe Site (Appendix V of
. revised version of Sept. 21).
The PREQB commented about the actual use of the shallow wall and the final
disposal of these waters. General Electric admitted that water pumped from
the shallow well was disposed in the onsite natural sinkhole. These statements
are missing In the ROD.
6* Appendix V, Section I, "Background ea Community Involvement «a,d
Concerns" of the revised version of September 211 1994.
. * "Location of monitoring wells; PRASA expressed..."
• "Aquifer contamination: PRASA expressed its..."
The PSEQB prefer the original versions of these points because they were
more complete and explanatory.
•
B. Information request .
*
I. Page 3, First paragraph.
"From 1382 until 1987. the ferrio chloride solution was itored In tanks and sold
to a wastewater treatment facility".
. Please send for our. records the information concerning this wastewater
treatment facility (e.g. name, location). " .;
S. * The Super-fund Program of the P&EQB sequestra copy of the RCA del Caribe
Public Meeting transcription. . ' .' "
PREQB. September 1994.
TOTflL P.05
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APPENDIX V
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RESPONSIVENESS SUMMARY
FOR THE
REMEDIAL ACTION
AT THE
RCA DEL CARIBE SITE, BARCELONETA, 'PUERTO RICO
TABLE OF CONTENTS
SECTION PAGE
Introduction 1
I. Background on Community Involvement and Concerns 2
II. Comprehensive Summary of Major Questions, Comments,
Concerns, and Responses 3
A. Summary of Oral Questions and Responses from the
Public Meeting Concerning the RCA del Caribe
Site ,. 3
B. Summary of Written Questions and Responses Received
During the Public Comment Period 6
ATTACHMENT
Community Relations Activities at the RCA del Caribe Site
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RESPONSIVENESS SUMMARY
RCA DEL CARIBE SUPERFUND SITE
BARCELONETA, PUERTO RICO
INTRODUCTION
This Responsiveness Summary documents the public's comments and
concerns and the U.S. Environmental Protection Agency's ("EPA's")
responses to those comments regarding the No Action proposal as
outlined in the Proposed Plan for the RCA del Caribe Superfund
Site ("Site") located in Barceloneta, Puerto Rico. EPA's
preferred remedial alternative addresses both groundwater as well
as the four formerly lined lagoons and soils at the RCA del
Caribe Site.
Other areas at the Site include two sludge drying beds which
received sludge from the wastewater treatment plant as well as
two sludge surface impoundments which received the dried sludge.
These units are regulated under the Resource Conservation and
Recovery Act ("RCRA"). General Electric Corporation ("GE") will
address the soil contamination within the RCRA regulated units at
the Site by submitting a RCRA closure plan-for those units or by
successfully delisting the wastes.
The Remedial Investigation ("RI"), Baseline Risk Assessment,
Proposed Plan and other supporting documentation for the Site
were released to the public for comment on July 18, 1994. The
notices of availability for these documents were published in the
El Nuevo Dia Newspaper and the San Juan Star Newspaper, on July
18, 1994. A public comment period was held from July 18, 1994
through August 16, 1994.
On July 27, 1994 a public meeting was held at the Barceloneta
Town Hall Conference Room where representatives from EPA
presented the findings of the RI and answered questions from the
public about the Site and the No Action proposal under
consideration. Approximately 14 people attended, of which 11
were not from the Barceloneta area. Attendees at the meeting did
not include any local residents, although the Mayor of
Barceloneta did attend.
EPA conducted the meetings in Spanish. An EPA Region II
Caribbean Field Office staff member summarized and translated
questions from and responses to non-English speaking residents.
EPA made English and Spanish versions of the Proposed Plan
available prior to and at the meeting. Copies of the Proposed
Plan were available for review at the Site information repository
located at the Barceloneta Municipal Library on Escobar Avenue,
and at EPA's Caribbean Field Office at Centre Europa Building,
1492 Ponce De Leon Avenue in San Juan.
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Based on the comments received during the public comment period,
as well as the participation at the public meeting, EPA believes
that there is no objection to the no action decision. The Mayor
of Barceloneta is in agreement with the remedy and supports EPA's
no action decision. However, a Puerto Rico Aqueduct and Sewer
Authority ("PRASA") representative raised some concerns with the
findings of the RI and did not agree with the no action proposal.
These concerns will be addressed in Section II of this
Responsiveness Summary.
e
This Responsiveness Summary is divided into the following
sections:
I. BACKGROUND ON COMMUNITY INVOLVEMENT AND CONCERNS: This
section provides the history of community concerns and describes
community involvement in the process of selecting a remedy for
the Site.
II. COMPREHENSIVE SUMMARY OF MAJOR QUESTIONS, COMMENTS,
CONCERNS, AND RESPONSES: This section summarizes the written
comments EPA received during the public comment period and oral
comments received^at the public meeting and EPA's responses to
them.
In addition to.Sections I and II, a list of EPA community
relations activities conducted at the Site is included as an
attachment to this Responsiveness Summary. Finally, a transcript
of the proceedings of the public meeting is available in the
information repository.
I. BACKGROUND ON COMMUNITY INVOLVEMENT AND CONCERNS
The Municipality of Barceloneta is one of the largest towns in
the area. Barceloneta is governed by a Mayor and a Municipal
Assembly, all of whom are elected by the community to serve four-
year terms.
As a result of the Site being located in a non-residential area,
there has been limited community involvement regarding the Site.
On June 26, 1990, EPA held a public meeting at the Barceloneta
Town Hall to discuss the proposed RI/FS activities at the Site.
In addition to EPA and local officials, approximately thirty
concerned citizens attended the meeting.
Although there have been no public water supply wells affected by
the contaminants of concern, PRASA-has expressed concern over the
following issues:
• Location of monitoring wells: PRASA expressed its concern
about the location of the monitoring wells with respect to the
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plume.
• Aquifer Contamination: PRASA expressed its concern about
the aquifer being contaminated with chloride and believes that
the situation requires a remedial action be taken at the Site.
II. COMPREHENSIVE SUMMARY OF MAJOR QUESTIONS. COMMENTS,
CONCERNS, AND RESPONSES
Public comments on the Proposed Plan submitted between July 18
and August 16, 1994 are summarized and addressed below. EPA has
separated oral comments from written comments, has categorized
the comments by topic, and consolidated similar comments into a
single topic. Individual commenters and their questions are
identified in the meeting transcript on file in the information
repository.
A. SUMMARY OF ORAL QUESTIONS AND RESPONSES FROM THE PUBLIC
MEETING CONCERNING THE RCA DEL CARIBE SITE.
Need for a Feasibility Study for the RCA del caribe Site
Comment: A citizen asked EPA of the need for a Feasibility Study
("FS") in this case.
EPA Response: If the results of the Risk Assessment show that
the levels of contamination at the Site are protective of public
health and the environment, and a remedial action is not
warranted, an FS to evaluate various remedial alternatives is
also not necessary.
Federal and State personnel involved in this case
Comment: A citizen asked for the names of the EPA and The
Environmental Quality Board ("EQB") personnel involved in this
case.
EPA Response: All Superfund sites are assigned to a Remedial
Project Manager ("RPM"). EPA's RPM for the RCA del Caribe site
is Mr. Adalberto Bosque. In addition, various EPA personnel
provide technical support to the RPM throughout the course of the
project. One example of this is Dr. Peter Grevatt who prepared
the Risk Assessment. EQB also assigns an RPM to the Superfund
sites. Although there have been different EQB RPMs over the
years the current RPM is Ms. Mercedes Padilla who participated at
the public meeting.
Duration of the Study
Comment: A citizen asked EPA about the duration of the
investigation.
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EPA Response: The Administrative Order on Consent was signed in
March 1988 and the final RI report was submitted to EPA in March
1994.
ATSDR Health Assessment Report
Comment: A citizen asked if the ATSDR Preliminary Health
Assessment report was considered during this investigation.
EPA Response: EPA did review the ATSDR Preliminary Health
Assessment. However, at the time it was written, the RI data was
not available. Therefore the conclusions ^in the Health
Assessment are not as up to date as those in EPA's Risk
Assessment which does use the data generated during the RI.
Risk Assessment
Comment: A citizen asked EPA for a clarification of the
difference between no risk and acceptable risk.
EPA Response: A no risk situation is one that is.without the
possibility of risk. An acceptable risk is a situation with some
measurable level of risk; however, it is within the bounds of
what EPA considers to be acceptable. No risk does not really
exist; whereas acceptable risk is part of everyone's "day to day
life experiences. Acceptable risk is the appropriate way to
characterize the risk at the Site because the risk is not zero
but is within the range that EPA has determined to be acceptable.
Comment: A citizen asked if the Risk Assessment considered
different exposure scenarios.
EPA Response: EPA's Risk Assessment considered the future
residential use of the Site, which is the most conservative
exposure scenario that could be evaluated. Other scenarios were
not evaluated because if we know that there were acceptable risks
under the most conservative scenario, then we would not expect
any other scenario to present an unacceptable risk.
Comment: A citizen asked if the water from the shallow aquifer
is potable.
EPA Response: The water from the shallow aquifer is potable.
The concentrations of contaminants meet the Maximum Contaminant
Levels ("MCLs") pursuant to the Federal Safe Drinking Water Act.
Comment: A citizen asked EPA the difference between the MCL and
the Maximum Contaminant Level Goal ("MCLG").
EPA Response: Standards set under authority of the Federal Safe
Drinking Water Act are called MCLs. An MCL is the highest amount
of a specific contaminant allowed in the water delivered to any
customer of a public water supply system. The process for
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setting primary standards for drinking water contaminants is
based on health effects and the economic and technical
feasibility of meeting those standards. MCLs are enforceable
standards. MCLGs however, are non-enforceable health-based goals
that have been established at levels at which no adverse health
effects are likely to occur.
Chloride Contamination
Comment: A citizen asked if chloride samples were taken as part
of the RI.
EPA Response: Chloride analyses were included in the RI.
Chlorides in groundwater ranged from 256 mg/L to 1220 mg/L.
Leakage of Artesian Well
Comment: A citizen asked if EPA will do something to ask GE to
stop the leakage of the artesian well at the Site.
EPA Response: The RCA facility has two sources of water; a
shallow water supply well which taps the upper aquifer and a
deeper artesian well which taps the lower aquifer. The deep well
was installed improperly resulting in water from the artesian
aquifer leaking around the well casing. '
EPA has no authority to ask GE to fix the leaking artesian well.
The Puerto Rico Department of Natural Resource and the
Environment ("DNRE") is the agency with the legal authority over
the water resources in Puerto Rico. In 1990, with the oversight
of DNRE, GE attempted to fix this well; however, the attempt was
only partially successful. EPA has met with the DNRE to discuss
this issue and DNRE has indicated that they will require GE to
implement additional corrective actions for this artesian well.
Comment: A citizen asked about the effect of the artesian well
leakage on the concentration of contaminants.
EPA Response: Upward leakage of the artesian well from a breach
in the bed confining the underlying artesian aquifer has created
a groundwater mound in the shallow aquifer. A divergent and
radially symmetric flow field exists in the vicinity of the
artesian well. Away from the artesian well, the regional gradient
dominates and groundwater flow is toward the northwest. There is
no effect on the concentration of contaminants since the wells
sampled as part of the RI are within the northwest direction.
Present Use of the Wells
Comment: A citizen asked about the present use of the RCA
wells.
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EPA Response: The only well that is actually in service is the
shallow well. It has a pump and supplies water to the plant for
fire protection, for maintenances purposes, and for. sanitary
services. The water is then disposed of into the on-site
sinkhole per a permit issued by EQB pursuant to the Underground
Injection Control program.
Comment: A citizen asked for any connection between RCA and any
other industry within the area to supply water.
EPA Response: There is no connection between RCA and any other
industry.
•v
B. SUMMARY OF WRITTEN QUESTIONS AND RESPONSES RECEIVED DURING
THE PUBLIC COMMENT PERIOD
EPA received the following written comments from PRASA.
Comment: PRASA does not agree with the conclusion of the dye
tracer study which said that there was no evidence of a
connection between the sinkhole and the underground flow.
Specifically PRASA writes, "In the aquifer system on the northern
coast of Puerto Rico, sinkholes represent a determinant source of
recharge and, as such, the relationship between the sinkholes and
the phreatic aquifer is direct. If such a relationship is not
corroborated in the tests, this is due to the test method and the
time at which the test is conducted. At the project site, the
water table is found at a considerable depth below the
topographic surface (some 300 feet) and, in order to be
successively intercepted by a sampling well, the path of the line
to reach the water table depends on many conditions, including
the time factor. Among the conditions of importance is the fact
that the aquifer at the local level is not necessarily isotropic
and depends on flow through preferred dissolution channel
systems."
EPA response: The RI report states that, based on the results of
the sinkhole tracer test, there is no evidence of an open conduit
or direct connection between the sinkhole and the shallow aquifer
flow field in the vicinity of the monitoring wells. It is
however recognized that the sinkhole is a recharge point for the
aquifer, and there are other recharge methods for the aquifer.
The sinkhole injection test was performed to determine if the on-
Site natural sinkhole was hydraulically connected to the water
table aquifer under the Site and therefore to the on-Site
monitoring wells. Those wells included MW-1/ MW-2, MW-3, MW-4,
and MW-5. Samples were also collected from selected Upjohn
monitoring wells (Up-9, UpJ-14 and UpJ-15) adjacent to the
facility but on a less frequent basis. The injection test did
not show a direct connection to the aquifer.
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Comment: "The location of the monitoring wells corresponds to a
direction-of-flow condition which is not the one verified at the
Site. The wells are sited to intercept an underground flow with
the preferred direction to the northeast. However, in the area
of the study, the flow is in the northwest direction. This
direction of flow is also affected locally by an anomaly in the
aquifer system associated with loss from the artesian aquifer to
the phreatic aquifer through the annular space of the artesian
well. This condition requires a redesign of the monitoring
system to intercept the direction of flow predominantly in the
northwest direction and, locally, in a radial manner."
EPA response: EPA does not agree with this comment. It should
be noted that, as presented in Figure 3-4 of the RI report, the
wells sampled as part of the RI are located in a northwest
direction from the Site. Section 6.3.4.5 and Figure 6-7, both in
Appendix B of the RI report, demonstrate the suitability of the
placement of the monitoring wells.
Comment: "The study concludes that the environmental impact
associated with the case under review involves a local increase
in the concentration of chlorides in the groundwater, which
varies from some 600mg/L to 20 mg/L, involving an area of the
aquifer of some 2km2 However, because of the difference in
density between fresh water and salt water, this area of
contamination may be more extensive if the monitoring wells could
penetrate the entire saturated thickness of the aquifer.
Regardless of the extent of the area of the aquifer affected by
the chloride contamination, the situation requires remedial
action aimed at injecting fresh water and extracting salt water
and the appropriate subsequent disposal of the latter".
EPA Response: The RI investigated the effects of density on the
movement of possible contaminants in the groundwater. The
shallow supply well is on the Site, and penetrates almost to the
base of the aquifer. Samples taken from this well show the
effects of seawater intrusion, not Site-related chlorides. Fully
penetrating wells to the north of the Site were sampled, and
these showed evidence of seawater intrusion, which represents the
base of the potable aquifer. Multi-depth samples were taken from
the on-Site monitoring wells to evaluate any density effects, and
no consistent pattern was seen.
According to the Superfund law, EPA can not select a remedial
action to treat the chloride contamination because chloride is
not a hazardous substance under Superfund. In addition,
chlorides present no health risk to potential groundwater users,
and thus was not evaluated in the Risk Assessment. Elevated
concentrations of chlorides in the groundwater are likely to
greatly decrease the desirability of the groundwater for potable
purposes. However, no health-based standard exists for
chlorides, and the only standard is an aesthetically-based
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standard, called a Secondary MCL.
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ATTACHMENT 1
COMMUNITY RELATIONS ACTIVITIES
AT RCA DEL CARIBE SUPERFUND SITE
Community relations activities conducted at the RCA del Caribe
Superfund Site to date have included the following:
• A public meeting was held at the Barceloneta Town Hall on
July 27, 1994 to explain the on-going field activities conducted
as part of the RI/FS.
• EPA established an information repository at the. Barceloneta
Municipal Library located at Sixto Escobar Avenue. Copies
of the documents in the repository were also placed in files
in EPA's offices in San Juan and New York City in July 1994.
• EPA released the Remedial Investigation Report and Risk
Assessment to allow the public an opportunity for comment.
These reports are part of the information repository (July
1994).
• EPA made Spanish translations of the Proposed Plan available
for public review and comment. The Proposed Plan is part of
the information repository (July 1994).
• EPA publicized and held a public meeting at the Barceloneta
Town Hall to describe the RI, the Risk Assessment, and the
Proposed Plan and to respond to citizen concerns. A
transcript of the proceedings of this meeting is available
at the information repository (July and August 1994).
o EPA held a public comment period on the Proposed Plan. The
public comment period lasted 30 days, from July 18, 1994 to
August 16, 1994.
• EPA prepared a Responsiveness Summary to document its
responses to all of the public comments received in writing
and at the public meeting (September 1994).
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ROD FACT SHEET
SITE
Name : RCA del Caribe
Location/State : Barceloneta, Puerto Rico
EPA Region : II
MRS Score (date): 31.14 (12/82)
Site ID # : PRO 900 370 537
ROD
Date Signed: 09/30/94
Remedy/ies: No Action
Operating Unit Number: OU-1
Capital cost: $0
Construction Completion: Not applicable
O & M in 1995: $0
Present worth: $0
LEAD
EPA Enforcement
Primary contact (phone): Adalberto Bosque (809) 729-6951
Secondary contact (phone): Melvin Hauptman (212) 637- 3952
Main PRP(s): General Electric Co.
PRP Contact (phone): Daniel Lovingood (615) 691-5052
WASTE
Type - Ferric Chloride solution
Medium - Soil and Groundwater
Origin - Release from Surface Impoundment.
Est. quantity - 1.4 million gallons
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