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RECEIVED EPA REGION V I
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REMEDIAL DESIGN FOR THE SAN JOSE-6
OPERABLE UNIT SOUTH VALLEY SUPERFUND SITE
DOCUMENT CONTROL #SJ600014.RPT
April 13, 1990
Prepared for:
GE AIRCRAFT ENGINES 336 Woodward Road, SE
Albuquerque, New Mexico 87102
Prepared by:
GEOSCIENCE CONSULTANTS, LTD
HEADQUARTERS 500 Copper Avenue, NW
Suite 200 Albuquerque, New Mexico 87102
(505) 842-0001 FAX (505) 842-0595
ROCKY MOUNTAIN REGIONAL OFFICE 13111 E. Briarwood Avenue
Suite 250 Engiewood, CO 80112
(303) 649-9001 FAX (303) 649-9004
EASTERN REGIONAL OFFICE 4221 Forbes Boulevard
Suite 240 Lanham, MD 20706
(301) 459-9677 FAX (301) 459-3064
9061552
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TABLE OF CONTENTS
1.0 EXECUTIVE SUMMARY 1
2.0 REGULATORY ISSUES 3
3.0 REMEDLU. DESIGN 6 3.1 ASSEMBLE BACKGROUND INFORMATION 6
3.1.1 Site History 6 3.1.2 Health Risks 6 3.1.3 Additional Background Data Compilation/Management 7
3.2 OBTAIN ACCESS AGREEMENTS 9 3.3 INSTALL MONITOR WELLS 9
3.3.1 Monitor Well Site-Selection Criteria 11 3.3.2 Monitor-Well Design and Installation 12
3.3.2.1 Drill Site Health and Safety 13 3.3.2.2 Drilling and Logging 14 3.3.2.3 Well Completion and Development 15 3.3.2.4 Water Level Determination 17 3.3.2.5 Disposal of Drilling-Wastes 17 3.3.2.6 Record Keeping 17
3.4 CLEAN-OUT AND PLUG ABANDONED WELLS 17 3.4.1 Identification and Specification of Abandoned Wells 17 3.4.2 Mechanical Equipment Removal 18 3.4.3 Well Cleaning and Sediment Removal 18 3.4.4 Special Considerations For Large Municipal Wells 19
3.5 TESTING OF THE SJ-6 WELL 20 3.6 WELL ABANDONMENT PROCEDURES 22
3.6.1 Permits and Inspections 22 3.6.2 Preliminary Work 22 3.6.3 Placement of Materials 23 3.6.4 Sealing Materials 24 3.6.5 Temporary Cover 25 3.6.6 Abandoned Cathodic Protection WeUs 25 3.6.7 Special Sealing Standards for Shallow Monitoring Wells 25
3.7 OPERATION AND MAINTENANCE OF GROUND-WATER MONITORING PROGRAM 25
4.0 REMEDIAL DESIGN IMPLEMENTATION SCHEDULE 27
5.0 REFERENCES CITED 28
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LIST OF FIGURES
HGURE 3-1 LOCATION MAP OF SJ-6 OPERABLE UNIT HGURE 3-2 TYPICAL MONITOR WELL COMPLETION DLVGRAM HGURE 3-3 SCHEMATIC SHOWING SAND PUMP OPERATION HGURE 3-4 PACKER/WELL CASING ASSEMBLY HGURE 4-1 GANTT CHART SCHEDULE FOR SAN JOSE-6 RD/RA
LIST OF TABLES
TABLE 3-1 ORGANIC COMPOUNDS DETECTED IN WELL SJ-6 TABLE 3-2 LOCATION AND CONSTRUCTION SPECIHCATIONS FOR
ABANDONED WELLS IN VICINITY OF SJ-6 OPERABLE UNIT
LIST OF APPENDICES
APPENDIX A APPENDIX B APPENDIX C APPENDIX D
ACCESS AGREEMENT TEXT OF BROCHURE FOR AREA LANDOWNERS MATERIAL SPECIHCATIONS FOR MONITOR WELLS CONTRACTOR SPECIHCATIONS FOR WELL ABANDONMENT
LIST OF PLATES
PLATE 1 PROPOSED NEW MONITOR WELL LOCATIONS PLATE 2 PROPOSED NEW MONITOR WELL LOCATIONS AND LOCATION OF
SHALLOW ZONE MONITOR WELLS IN THE VICINITY OF SJ-6 PLATE 3 PROPOSED NEW MONITOR WELL LOCATIONS AND LOCATION OF
INTERMEDL\TE ZONE MONITOR WELLS IN THE VICINITY OF SJ-6 PLATE 4 PROPOSED NEW MONITOR WELL LOCATIONS AND LOCATION OF
DEEP ZONE MONITOR WELLS IN THE VICINITY OF SJ-6 PLATE 5 PROPOSED NEW MONITOR WELL LOCATIONS AND LOCATION OF
INDUSTRIAL & RESIDENTIAL WELLS IN VICINITY OF WELL SJ-6 PLATE 6 LOCATION OF ABANDONED WELLS IN THE VICINITY OF WELL SJ-6
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1.0 EXECUTIVE SUMMARY
The CERCLA Section 106 Order (ORDER) and Remedial Action Plan (RAP) for the San Jose-
6 operable unit (San Jose-6) specifies that a remedial design (RD) be submitted by General
Electric (GE) to EPA and New Mexico Environmental Improvement Division (NMEID). This RD
provides a detailed plan for implementing and completing the remedial action (RA) required by
the Record Of Decision (ROD). Additionally, the RD contains a schedule for completing the
RD/RA that supersedes the previous schedule supplied in the San Jose-6 RAP. GE has retained
Geoscience Consultants, Ltd. (GCL) as the contractor to prepare the RD and conduct the RA.
The purpose of the RD is to assemble a detailed approach to the ROD-required remedial action,
including the location of abandoned wells to be sealed (i.e., plugged and abandoned) and
detertnination of monitor wells to be installed. EPA has provided an initial list of 16 abandoned
wells, located within the operable unit, to be sealed. GE has completed a thorough search of
existing city, state and RI/FS records and a preliminary reconnaissance of the site, resulting in a
compilation of specifications for these 16 wells. Additional abandoned wells within the site may
be located during implementation of this RD and the associated on-site inspection and search of
the operable unit. Any additional wells that are located as a result of these on-site search
activities, and which are determined to present a possible conduit for contaminant migration, will
be cleaned out and plugged.
This RD calls for the installation of monitor wells in the vicinity of the San Jose Well No. 6 (SJ-
6). Plans for fourteen new monitor wells have been included, and will be installed in six locations
as clusters of multi-level wells. The new monitor-well clusters will fulfill the monitor-well
installation requirements of the ROD, and their location and construction will allow determination
of horizontal and vertical concentration and hydraulic gradients. Additionally, the remedial design
attempts to give priority to location of these new monitor wells near known, existing residential
wells. Data collected from the new well clusters, old data from prior studies and Remedial
Investigations/Feasibility Studies (RI/FSs), and data from existing monitor wells will provide
sufficient information to evaluate the performance of the selected remedial action.
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Monitoring of existing monitor wells and wells installed during the San Jose-6 RA will be the
responsibility of GE during the first year of implementation of the RA After this initial year,
monitoring will be conducted by the State of New Mexico. The monitoring will determine if
aquifer restoration by natural flushing is occurring, or if additional remedial actions will be needed.
One significant issue remaining unresolved is the testing and sealing of SJ-6. GE has proposed in
this RD the testing of SJ-6 using a packer/measurement port string for discrete vertical sampling
inside the well casing. The detailed methodology for this testing is presented in Section 3.0;
however, for accurate samples and data from depth-discrete intervals, we believe this testing would
be most technically correct if accomplished through a nest of monitor wells, each completed in
separate zones of interest, or a multiple-level completion.
The plugging and abandonment of SJ-6 presents a serious regulatory issue because the City of
Albuquerque has indicated their determination to EPA NMEID and GE, contrary to the ROD
requirements, to keep the well open. GE agrees with EPA and the prescribed remedial action
of the ROD, and believes the well should he plugged to prevent any possibility of cross con
tamination of aquifers. This issue will have to be addressed in detail during the RDfRAi, and
EPA and NMEID must assist GE and GCL in finding an acceptable solution to the dispute.
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2.0 REGULATORY ISSUES
The San Jose-6 ROD describes the selected remedy for San Jose-6 which consists of cleaning and
sealing abandoned wells, ground-water monitoring for at least 30 years, and access restrictions for
completing new wells in the operable unit. Sbcteen abandoned wells have been identified; however,
it is not clear if they are all acting as conduits for aquifer cross contamination between the shallow
and deep water-bearing zones. Based on discussions with EPA it is the potentially responsible
party's (PRP's) responsibility to identify if these wells are acting as conduits, and to identify and
locate all other pre-existing wells which may act as conduits. To accomplish this task, a detailed
records search has been completed and field investigations have bieen undertaken. The field
investigations are crucial so that physical parameters (i.e., well diameter, depth, water levels,
conditions, etc.) of previously identified wells and newly-discovered wells can be ascertained. It is
not known whether additional wells exist beyond the previously-identified 16 wells; however, their
identification and location will be attempted through a due diligence effort which will be made
before the remedial action is completed. The identification and location of additional wells beyond
the listed sixteen is not assured, but a due diligence effort will be completed before the remedial
action is finished.
Once located, the ROD calls for proper sealing (i.e., plugging and abandonment) of the wells;
however, the ROD also states that the integrity of the abandoned wells will be checked before they
are sealed. Realizing the plugging and abandonment process will require access easement and
cooperation from private owners, GE requests the support and assistance of EPA when due
diligence by GE and its contractor fails to secure access. This assistance will be of key importance
when residential wells used for irrigation are to be sealed since the owners will deprived of an
economic benefit (i.e., irrigation water).
Another significant issue which remains unresolved pertains to the testing and abandonment of SJ-
6. GCL recommended in the RAP negotiations, on behalf of GE, that the testing of SJ-6 could
most accurately and cost-effectively be performed using a packer/measurement port string for depth-
discrete, vertical ground-water sampling inside the existing well. This concept was acceptable to
EPA contingent on a review of the detailed method and technology to be presented in the RD.
The technical approach of this RD presents the technical issues of concern associated with the
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ability of packer testing to provide depth-discrete vertical samples. This technique will not assure
precise depth-discrete samples since SJ-6 is screened and gravel packed from 120 to 912 feet. This
continuous screen and gravel pack allows some ground-water migration from zones above or below
packers set inside the well casing, although it should provide ground-water samples produced
predominantly from the depth interval between the uphole and downhole packers. For precise
depth-discrete ground-water samples and hydraulic gradient information, GE recommends an
adjacent nest of monitor wells, completed at vertically separate intervals. We do not believe that
packer testing will guarantee the depth-discrete samples required for determining contaminant levels
within or adjacent to SJ-6.
The plugging and abandonment of SJ-6 presents a difficult political problem since the City of
Albuquerque has indicated their desire to EPA and NMEID, contrary to the ROD requirements,
to keep the well open. In fact, currently the City of Albuquerque and EPA Region VI strongly
disagree about the fate of SJ-6. The City would like to rehabilitate and use the well; EPA
maintains its productive capacity has already been replaced by Burton #4 and the potential for
cross-contamination should be eliminated through sealing. GE agrees with EPA and believes the
well should be plugged to prevent any possibility of cross contamination. This issue will require
the assistance of EPA and NMEID in finding an acceptable solution to the dispute.
During the RAP negotiations held with EPA and NMEID on October 23, it liecame clear that
both regulatory agencies considered the installation of monitor wells to be a very high priority in
the San Jose-6 remediation. This is due to the pressure which has t)een exerted by residents in
these areas on the agencies as a result of concern over potential contamination lying under their
homes and adjacent to their domestic wells. In response to EPA comments, GCL has proposed
locations of monitor wells which will fill in monitor-well gaps within the operable unit and provide
better coverage for monitoring volatile organic compound (VOC) levels in the unit over time.
Specifically, GCL has proposed locations north and east of the site in the downgradient direction,
with proximity to residential areas being a high priority for location selection. Total added footage
of monitor wells within San Jose-6 approximates 1000 feet.
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Finally, the ROD requires institutional access restrictions to the shallow and intermediate zones
for new domestic water wells. These restrictions have already been implemented and their
enforcement and maintenance is the responsibility of the NM State Engineer's Office.
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3.0 REMEDL^L DESIGN
3.1 ASSEMBLE BACKGROUND INFORMATION
Previous studies by EPA and N M E I D have permitted assembly of a site history. This historical
information includes a health assessment study done on the area. We have briefly described a site
history and health risk of the site, and have prepared a methodology for handling all the previous
analytical data from RI/iFSs as well as a format for storing all sampling, analytical, monitor well
installation, and plug-and-abandonment data to be generated by this RD/RA
3.1.1 Site History
According to previous RI/FSs, ground-water contamination was first suspected in 1978 when foul
tastes and odors were noted in ground water produced from a private well on the Edmunds
property, now named the Edmunds Street Operable Unit. Subsequent sampling showed that
VOCs were present in three municipal wells (Miles No. 1 or M-l, San Jose Well No. 3 or SJ-3,
and SJ-6) which were put out of service when the VOC contamination was first discovered. M-
1 was returned to service in 1981 after it was resampled and found to be contaminant free. SJ-
3 had mechanical problems that prevented its return to service. Because low levels of VOCs
continued to be detected in ground water from SJ-6, it has remained out of service since 1980.
It was contamination in ground water from SJ-6 that led to extensive studies of the site.
The San Jose-6 site is comprised of SJ-6 and sbc industrial facilities, but studies for San Jose-6 were
also conducted in the general vicinity surrounding the sbc industrial facilities. These studies include
work by the NMEID and the PRPs, as well as two phases of site characterization work conducted
by EPA in 1984-1985 and 1987-1988. As a result of these studies to evaluate remedial measures
for the site, SJ-6 was replaced by a new municipal well, the Burton No. 4, in July, 1988. These
studies also provided the background data needed by EPA to reach a Record of Decision on
remedial actions to be undertaken by PRPs for the San Jose-6 site.
3.1.2 Health Risks
The RI/FSs on San Jose-6 have included a risk assessment of the site. Ground water, on which
the health assessment of San Jose-6 was focussed, is the primary media of concern in the vicinity
of SJ-6. The potential risk from the site was comprehensively evaluated using the maximum
001720
reported VOC concentrations from the 1985 and 1987 ground-water data. The risk assessment
show« that there are no exceedances of Federal health criteria and local exceedances of State
health criteria. The lower bound for the Federal criteria is 10^ which means that an individual will
have a cancer risk of 1 case in 10,000 people, and the State criteria is 1 case in 100,000 or 10'.
Most chlorinated solvents in ground water are below State and Federal numerical criteria in the
vicinity of SJ-6. Ground water sampling (Table 3-1) l>etween 1981 and 1984 showed several VOC
levels al>ove State standards; however, recent sampling in 1987 (Tal>le 3-1) has shown reduced
VOC concentrations such that only 1,1-DCE levels (8 ppb) exceeded State standards (5 ppb). This
concentration and naturally occurring arsenic cause the New Mexico 10' health criteria to be
exceeded while Federal 10"* health criteria are not exceeded. EPA believes the chlorinated solvents
detected in SJ-6 most likely do not represent ground-water contamination, but contamination of
sediments that have filled in the base of the well.
The Federal health standards are also met in the areas surrounding SJ-6, but the combined State
health standard of 10' is exceeded in ground water produced from two monitor wells completed
in the intermediate water-bearing zone. One residential well located northeast of the site, although
t)elow all other criteria, also exceeds the State health standard. The levels of the VOCs, however,
do not appear to pose a significant health threat. Thus, the remedial action alternative selected
by EPA calls for long-term monitoring of existing monitor wells and new monitor wells to be
installed during the RA, sealing of abandoned wells within the operable unit, and access restrictions
for completing new water wells. If the primary sources of VOCs (e.g., Edmunds St., Plant 83, etc.)
are remediated, these sources will no longer continue to feed VOCs into the ground water of San
Jose-6. Elimination of the VOC sources and natural dilution from internal mbdng should provide
the most cost efficient remedy for San Jose-6.
3.1.3 Additional Background Data Compilation/Management
Well completion and location information on the 16 abandoned wells identified by EPA has been
assembled in Table 3-2, and is a product of a detailed records search and preliminary field
investigation of the area. Additional information on abandoned wells in the operable unit will be
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gathered during the RD/RA and will be secured by on-site field investigations focussed on location
of unknown pre-existing water wells. This field investigation is mandatory for locating private wells
which are not recorded with the State Engineer. The field investigations will he implemented in
concert with obtaining access agreements and providing informational brochures to residents in the
area. All well completion and location data gathered will be input into a Dbase III database.
All analytical data generated by previous NMEID, PRP and EPA investigations (RI/FSs) on San
Jose-6 will be entered into a Dbase III database which permits output of data in various formats.
The analytical data will include analyses of ground-water samples taken from monitor wells during
RA and operation and maintenance activities on San Jose-6. Assembly of this data will permit GE
arid EPA to evaluate VOC concentrations in the aquifers over time as stipulated in the ROD.
Integral data to be included in the database is as follows:
Abandoned Well Program
Well location (NM State Plane Coordinates) Well construction information Screened interval Well depth Amount of fill Elevation of land surface, casing Depth to water/date of measurement Water elevation Current usage Lithology of borehole (if available) Abandonment procedure
Monitor WeU Program
Well location (NM State Plane Coordinates) Well construction information Screened interval Lithology of borehole Elevation of land surface, casing Depth to water/date of measurement Water elevation Analytical results of sampling/date of sampling
Analytical results for all sampling will report the EPA method(s) used for each analyte.
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3.2 OBTAIN ACCESS AGREEMENTS
To investigate the potential for existing wells to cross contaminate the different aquifer zones,
domestic, industrial and municipal wells in the area must be examined. Some of these wells may
need to be cleaned out, plugged and abandoned. Furthermore, installation of additional monitor
wells is necessary for long-term monitoring of ground-water quality in the area.
Figure 3-1 shows the outline of the San Jose-6 superfund site and includes the area subject to the
due diligence effort to locate all wells and establish a monitoring system. Within this area there
are industrial (corporate), municipal and private land owners whose property must he accessed to
carry out the requirements of the ROD. To accomplish this task, GE is in the process of
conducting a systeinatic search of property records to establish ownership of property. In addition,
we have drafted an access agreement which will be signed by landowners to clearly define the terms
of access to their property (Appendbc A). This access agreement allows for activities to be carried
out necessary to comply with the ROD and ORDER while assuring landowners that their property
will be protected. This agreement will be used both for the San Jose-6 and the Plant 83 operable
units.
To l)etter inform area residents and landowners of the activities associated with implementation of
the ROD, a brief informational brochure has been prepared to be distributed in the door-to-door
search for domestic wells. This brochure, the text of which is included as Appendfac B, will be
printed in both English and Spanish to assure that all members of the community are informed as
to those activities which will he involved in the RD/RA Representatives from GCL and GE who
conduct the access negotiations will have translators at their disposal to assure that any Spanish-
speaking residents are appropriately informed.
3.3 INSTALL MONITOR WELLS
The San Jose-6 ROD requires that additional monitor wells be installed in the vicinity of SJ-6.
The procedures and specific protocols to be followed during monitor well installation, development,
and testing are detailed in the Quality Assurance/Quality Control Project Plan (QAPjP) and in
subsequent portions of this section.
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A total of fourteen new monitor wells will be installed at sue locations (Plate 1). At two of the
designated locations (CLUS-1 and CLUS-2), a cluster of three wells will be installed. The clust
ers will include completions in the deep aquifer zone, the lower portion of the intermediate aquifer
zone, and the upper portion of the intermediate aquifer zone. Completion depths will be at
approximately 140 feet below grade, 80 feet below grade, and 40 feet below grade respectively.
Well locations CLUS-3, CLUS-4, CLUS-5, and CLUS-6 will be two well clusters. Two intermediate
aquifer zone wells will be installed at each of these locations at depths of approximately 80 feet
and 40 feet below grade.
The new monitor well clusters will fulfill the monitor well installation requirements of the ROD.
Their location and construction will allow determination of vertical hydraulic and concentration
gradients within the intermediate and deep zones. Data collected from the sbc new well clusters,
along with data from existing monitor wells (Plates 2, 3 and 4), will provide sufficient data to
evaluate the performance of the selected remedial design. In addition, the resulting monitor weU
distribution, which includes monitor wells located between SJ-6 and residential areas (Plate 5), will
provide adequate protection bf the public health through monitoring of ground-water quality.
New monitor wells will be drilled employing mud-rotary methods outlined in Appendix B of the
QAPjP (GCL, 1990a). Lithology and other pertinent geologic information will be logged at the
well site by an experienced hydrogeologist. A full suite of geophysical logs will l>e run in each well.
Logs will be interpreted by an experienced log analyst.
The following sections descritie the criteria which were employed in site selection and completion-
depth selection for new monitor wells. In addition, drilling and completion methods and proce
dures are presented in detail.
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3.3.1 Monitor Well Site-Selection Criteria
Monitor well sites and completion depths were selected after careful consideration was given to
the following factors:
• Local hydraulic gradient,
• Proximity to known, existing residential wells,
• Suitability of location and completion depth for assessing the rate of aquifer restoration by natural flushing, and
• Degree to which selected location and depth would beneficially expand the existing monitoring systems.
Previous investigations (Le., RI/FSs) of SJ-6 have determined that existing hydraulic gradients in
the intermediate and deep aquifer zones are oriented toward the northeast. Proposed new monitor
well clusters have, accordingly, been located downgradient to the north and east of SJ-6 (wells
CLUS-1 through CLUS-5). Although hydraulic gradients are believed to be oriented to the north
and east of SJ-6, weU CLUS-6 is located northwest of SJ-6 to protect nearby residential areas
located in that direction.
Residential areas adjacent to SJ-6 and the locations of known residential wells within the SJ-6
vicinity are shown on Plate 5. It is likely that other residential wells will be identified during the
course of remedial design implementation. These wells will most likely be located within the
residential areas shown on Plate 5 and may necessitate the location of additional monitor wells.
In accordance with the requirements of the San Jose-6 ROD, the final selected monitor well
locations will provide adequate protection of the residential areas and ensure protection of the
public health.
The ROD and ORDER require that additional monitor wells be situated so as to allow assessment
of the rate of natural flushing taking place within the aquifer. This requirement necessitates that
monitor wells be located in a downgradient direction from areas of contamination. The locations
selected for new monitor wells address this requirement in three dimensions. The sbc well site
locations (CLUS-1 through CLUS-6, Plate 1) are distributed along a compass bearing arc spanning
11
001725
over 180 degrees relative to SJ-6, from N60W (CLUS-6) through S60E (CLUS-3). The new
monitor wells are also distributed about the vertical dimension, and will include completions in the
upper-intermediate, lower-intermediate, and deep aquifer zones. CLUS-6 has been located between
SJ-6 and the residential areas to the northwest to monitor concentrations near the residences.
The three-dimensional distribution of monitor wells will allow collection of chemical concentration
data and t>oth horizontal and vertical chemical gradient information. This information will be
analyzed to assess the rate at which natural flushing of the aquifer is occurring, as required by
the ROD and ORDER.
The new monitor well locations should constitute an adequate and complete monitoring grid for
the purposes of this remedial design. However, additional pre-existing monitoring wells are located
about the site (Plates 2, 3 and 4). New monitor wells were located at sites which complement the
existing grid of monitor wells. The existing wells will provide the opportunity for collection of
additional data during the remedial monitoring activities. Access to existing monitor wells which
are to be utilized during remedial monitoring will be acquired by GE unless EPA assistance is
needed (paragraph W, page 19 of the ORDER).
The existing shallow, intermediate, and deep monitor wells shown on Plates 2, 3, and 4 were
categorized according to the criteria set forth in the ROD. That criteria established the shallow
water-bearing zone as occupying a depth interval from 0 feet to 30 feet below ground level. The
intermediate aquifer is defined in the ROD as that interval occurring from greater than 30 feet to
100 feet below ground level. Portions of the aquifer greater than 100 feet below ground level are
within the deep aquifer zone. Adoption of the above stated criteria has resulted, for some monitor
wells, in a category change (shallow to deep, deep to intermediate, etc.) from previous reports.
3.3.2 Monitor-Well Design and Installation
Background investigations indicate that ground water beneath San Jose-6 is first encountered in
an unconfined water-table aquifer (shallow zone) at depths of approximately 30 feet or less. This
aquifer and the underlying confined aquifers (intermediate and deep zones) are comprised of
12
001726
unconsolidated sand and gravel deposits, primarily of the Santa Fe Group (Tertiary). The design
and instaUation of monitor wells is constrained by:
WeU completion materials (e.g., well screens) which when located in the saturated zone must be effectively inert with respect to the anticipated wastes.
Screen lengths that must be short enough to monitor discrete zones.
A requirement to maintain an open and stable borehole during logging and completion.
The need to use materials of sufficient strength for deep weU construction.
The need to ensure an adequate well diameter for development and instaUation of sampling pumps.
The shallow and intermediate monitor wells are designed using a combination of 4-inch diameter,
type 304 stainless steel for the screens, sumps and riser pipes, and 4-inch, PVC riser pipes (Figure
3-2). Deep zone monitor wells may require the use of components other than PVC to provide
strength against excessive hydrostatic pressure. Low carbon and stainless steel will be considered
for this purpose. All well screens and pipe will be joined by flush-joint threaded couplings, and
no sealants, glues or solvents will be employed. Well screens for shallow completions will be wire-
wound 0.20" slot, and will be 15 feet in length with 3 to 5 feet placed above the water table.
Monitor wells completed below the top of the water table will utilize a 10-foot long screen of the
same specifications. A five foot silt trap will be placed below the well screen. Stainless-steel
centralizers are specified to assure that the well string is centered in the borehole. Complete
material specifications are given in Appendbc C and monitor-well instaUation procedures are
outlined in Section 3.0 of the QAPjP (GCL, 1990a).
3.3.2.1 DriU Site Health and Safety
A comprehensive worker health and safety plan (WHSP) (GCL, 1990b) has been developed for
all San Jose-6 remedial activities. In addition, site and task-specific health and safety plans will be
developed as required during the course bf remedial activities. All site activities will be conducted
in strict accordance with these plans.
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3.3.2.2 Drilling and Logging
Geologic conditions at San Jose-6 require the use of mud-rotary methods for intermediate and deep
zone monitor wells. These are described in detail in the following sections.
The drill site will be cleared to ensure that no underground utilities are present. Local utilities
companies and facUities will be notified of the site locations and intent to drill. Additionally, a
magnetometer will be utilized to ensure that buried tanks or pipelines are not present beneath
proposed drill sites.
All wells will be drilled with a mud rotary drill rig. Prior to starting each weU, the rig and all
drilling tools will be steam-cleaned in the decontamination area. A decontaminatibn pad will be
constructed on the GE site for this purpose. Water used for decontamination wiU he contained and
analyzed prior to disposal to determine if it is hazardous. If it is hazardous, it will be shipped
off-site for disposal at a regulated disposal faciUty.
The rig will be moved to the drill site, and carefully leveled to assume a straight, vertical hole.
Portable mud pits will be used to prevent contaminated cuttings and driUing fluid frbm coming in
contact with the ground surface. Drilling fluid will consist of a mbcture of pure sodium bentonite
mud and clean water. A sample of the water to be used for drilling will be collected frora the
source and analyzed to ensure that no contaminants are introduced to the subsurface during driUing
activities.
DrUling wiU commence using a 10- to 12-inch drill bit to advance an initial txjrehole to the top
of the proposed screened interval for each well. Surface casing (8.0 inch steel) wUl be installed
in the borehole and cemented in place using a tremie pipe. The surface casing will prevent loose
material from sloughing into the borehole and wiU seal off any highly contaminated surface material
from lower zones. The cement will be allowed to set for 18 to 24 hours before re-entering the
borehole.
The wells will then be drilled to a total depth ranging from 60 to 200 feet using an 8-inch drill
bit. Once the 8-inch drUling begins, work will proceed without interruption until total depth is
14
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reached. After reaching total depth the well will be circulated with mud for several hours; then
the drill string will be removed from the hole in preparation for geophysical logging.
For each hole, three types of logs will he obtained; lithologic, drillers and geophysical. The on-
site geologist will maintain a' lithologic log based on drill cutting samples collected at 5-foot
intervals. These samples will be retained until completion of the project in labeled bags for future
reference, if necessary. A drilling log will be maintained by the driller. This drilling log will
record time, depth, drilling rate, general lithology and comments on materials used and any unusual
fluid or borehole conditions.
After the well is drilled to total depth, a suite of geophysical logs will be run. These will include
resistivity, self-potential, natural gamrna, caliper, density and neutron porosity. These logs will
provide information on subsurface lithologies and, more importantly, allow the identification of the
top of the saturated zone. The geophysical logs will be used to aid in determining porosity of
selected screened intervals.
3.3.2.3 WeU Completion and Development
Well completion depths will he predetermined and criteria for specific well depth selection are
discussed in Section 3.3.1. Minor adjustments to the proposed completion depth may be made in
the field if lithologic or geophysical logging identifies aquitards in the target completion zones.
Because of the critical need to locate the screen accurately, each screen and pipe joint will be
individually measured to the nearest 0.01 foot and these exact lengths wiU be used to determine
the screen's depth. In most cases, it is found that the casing string's measured length will vary by
±_1% from the nominal length. By measuring each piece, this potential error will he avoided.
After the completion string is lowered to its final depth, a temporary collar will be welded to the
upper end of string. This will allow the string to be suspended from the top of the 8-inch surface
casing. Suspending the string wiU keep the pipe straight and vertical during the subsequent
completion operation.
15
001729
Tremie-pipe joints will also be measured to the nearest 0.01 foot, allowing accurate placement of
the tremie. The tx}rehole l)elow the screen will then be backfilled with clean 20/40 silica sand.
Clean 10/20 sand will then be emplaced to a level 3 to 7 feet above the top of the screen. A 3
to 5 foot layer of 20/40 sand wUl be placed above the 10/20 sand, and this will be followed by a
3 to 5 foot bentonite plug. The borehole wiU then be grouted to the surface with cement
containing approximately 2% to 5% bentonite. A typical completion diagram is included as Figure
3-2. During all completion operations, the casing will remain fluid-filled. This will prevent
displacement by buoyancy and protect the casing from collapse due to external hydrostatic pressure
in the borehole.
After a 24-hour wait to allow the grout to set, development will begin. The following methods of
weU development will be used separately or in combination as required by each monitor well:
• Bailing
• Over-pumping
• Over-pumping combined with in-situ jetting with formational water
• Surging with a surge block
• Jetting with clean water while pumping simultaneously
Development will l>e monitored by regular measurements of pH, conductance and visual turbidity.
When pH and conductance remain stable for 1 hour, samples will be collected for turbidity analysis.
Development wiU be considered complete when stable conditions and turbidity of less than 5 NTU
is maintained.
Monitor well heads wiU be completed either above-ground or in below-ground vaults. The decision
for the specific type of completion will be dependant upon several factors, including well site
security and the level of vehicular traffic through the site. Both types of completions will be such
that well head security is ensured.
16
001730
After wells have t)een completed, a registered surveyor will survey the well locations, site elevations,
and the elevation of the well casing and water level measuring point.
3.3.2.4 Water Level Determination
Water levels within the completed monitor wells will be measured by using an electronic well
indicator and recorded in a field logbook and on a data sheet to be maintained for each individual
monitor well.
3.3.2.5 Disposal of Drilling-Wastes
All cuttings, spent mud and water produced during development will be retained in 55-gallons
drums or large-volume tanks pending analyses. Drilling wastes will be disposed of in a manner
consistent with analytical results. Waste material that is determined to be hazardous will be
drummed and shipped from the site to a regulated RCRA-permitted disposal facility. Waste
material that is non-hazardbus will be disposed locally using methods consistent with all Federal,
State or local regulatory requirements.
3.3.2.6 Record Keeping
Logbooks will be signed and dated. Surveys of all well sites and pertinent elevations will be
conducted and recorded. This data will all be entered in a database which will be maintained and
updated each time wells are measured or sampled. In addition, observations about the composition
and condition of each abandoned well will be recorded bn an abandoned well log form.
3.4 CLEAN-OUT AND PLUG ABANDONED WELLS
The SJ-6 ROD requires the cleaning and sealing of all existing industrial, residential, and municipal
wells that could act as vertical conduits for contaminant migration. The following sections identify
and descrit>e the wells to l>e cleaned and plugged, and provide a detailed explanation of the proce
dures to be employed in accomplishing these tasks.
3.4.1 Identification and Specification of Abandoned Wells
In addition to SJ-6, there are at least 16 abandoned wells in the vicinity of SJ-6 which could act
as conduits for contarninant migration (Plate 6). A thorough search of State and City records
17
001731
records and a preUminary reconnaissance of the site has resulted in the identification, approximate
location and specifications of these wells. Table 3-2 presents the abandoned wells' locations and
construction specifications. Other abandoned wells may be identified within the operable unit
during implementation of the RD and the due-diligence, on-site search of the unit. Information
on any such wells wiU be acquired during a house-to-house survey of the area that will be
conducted as soon as access to affected properties can be obtained. Any additional wells that are
located as a result of these activities, and which are determined to present a possible conduit for
contaminant migration, will also be cleaned out and plugged.
The abandoned wells will comprise a wide variety of sizes, depths and construction features. They
wUl include drilled, driven, jetted and perhaps even hand dug wells. Some wiU have been properly
constructed with cemented casings and sanitary seals while others wiU probably tie found to have
l)een improperly constructed. A comprehensive well abandonment procedure that will be used for
the privately-owned wells is descritjed below in Section 3.6.
3.4.2 Mechanical Equipment Removal
In addition to information gained in review of historical weU records, each weU site will be
inspected to determine the nature and physical characteristics of any existing mechanical facilities,
such as pumps, piping, wiring, etc., associated with the well site. Any such equipment will be
removed from the weU t)ore prior to commencement of well cleaning and plugging.
3.4.3 Well Cleaning and Sediment Removal
Any wells which are identified and targeted for plugging will be inspected to determine whether
sediments have entered the well through the well screen or through damaged sections of blank
casing. Any sediments which are found will be removed prior to plugging to ensure that the best
possible seal is installed in the well. These sediments will be removed by inserting a sand pump
(Figure 3-3) untU it rests on top of the sediment column. The plunger in the sand pump wiU then
be retracted, creating a suction that will draw the sediment upward and into the sand pump. The
sand pump will then be removed from the well and the sedirnents will be placed on a lined pad
or in a tank. The sediments/fluids will be sampled and analyzed by protocol outlined in Appendbc
D of the QAPjP (GCL, 1990a). If the analytical results show that the material extracted from the
18
001732
well is non-hazardous it wiU he removed from the site for disposal according to aU applicable
Federal, State or local laws. If the material is found to be hazardous, then it will be contained and
shipped off-site to a RCRA-permitted disposal facility.
At least four municipal wells have been identified for possible plugging and abandonment. Over
100 feet of silt and sand are known to have accumulated in the bottom of SJ-6. These sediments
may be the source of contamination identified by previous RI/FSs. This material will be removed
from the well by the method discussed above. After the sediment has been removed, a submersible
pump wiU he installed and the well wUl l>e pumped to redevelop the lower section of the well.
Developed water wiU be discharged into tanks and sampled. If the developed water is not
hazardous, then it wiU be removed from the site for local disposal according to all applicable
Federal, State and local laws. If the developed water is found to be hazardous, then it will be
contained and shipped off-site to a RCRA-permitted disposal facility.
After SJ-6 has been cleaned out, all downhole tools and equipment will be decontaminated
according lo procedures outlined in the QAPjP (GCL, 1990a).
3.4.4 Special Considerations For Large Municipal Wells
The abandoned municipal supply wells, San Jose Wells No. 2, 3, 6, and 9, are large diameter steel
cased wells. Their depths range from 471 to 1200 feet deep. The large diameter casing and
depth of these wells will require special consideration and heavy-duty equipment for clean-out and
possible plugging and abandonment.
Large municipal wells requiring abandonment will be abandoned by plugging and sealing with
cement grout according to the well abandonment procedure that is described in Section 3.5.
These wells were designed as high-production water supply wells for the City of Albuquerque;
however, they have t>een out of service many years because of mechanical problems and/or due to
solvent contamination of the aquifer in which they are completed. The wells were designed and
constructed with cemented and gravel packed annular spaces. Because of the large size of the
wells, extreme care must l>e taken in their abandonment to ensure protection from inter-aquifer
contamination.
19
001733
The condition of each of the wells will be thoroughly assessed prior to abandonment, including
the condition of the casing and the cement grout seal between the casing and the adjacent geologic
formations. The grouted zones will be either pressure-tested or evaluated with a cement bond log.
Interpretation of data from such tests will be made by an experienced log analyst. If the existing
seal is not satisfactory, the casing wiU be perforated at selected locations and cement grout will be
injected under pressure into the required zones to eliminate inter-aquifer pathways. Cement grout,
applied with positive pressure, wiU be used to seal the wells according to the provisions for gravel-
packed wells described in Section 3.6.
3.5 TESTING OF THE SJ-6 WELL
Depth-discrete ground-water samples are required from SJ-6 to determine whether in-fill sediments
have l>een solely responsible for the deep zone contaminants previously identified in the well, and
to determine if other zones of contamination are present in the weU. Packer testing of SJ-6 will
allow for approximate depth-discrete ground-water samples but will not guarantee obtaining fully
depth-discrete samples due to the possibility that leakage may occur through the gravel pack in the
annular space of SJ-6. GE recommends installation of a nest of monitor wells, immediately
adjacent to SJ-6, to ensure collection of hydraulic data and ground-water samples from depth-
discrete intervals. The number of monitor wells and the completion depths will be determined
after analytical results of samples collected from the sediments removed from SJ-6 have been
thoroughly evaluated. However, at least three monitor wells will he necessary: one each in the
shallow, intermediate, and deep zones. In addition, it will probably be necessary to install one
monitor well with a completion depth within the same interval as the sediments which are found
to be present in SJ-6. The monitor wells will be installed according to protocol discussed in
Section 3.3.
If a cluster of wells is not an acceptable approach for testing the immediate vicinity of SJ-6, then
packer testing within SJ-6 will be required. Inflatable packers will be installed above and below
a section of stainless steel screen (Figure 3-4). The packers will be spaced equidistant from the
screen. The packers will be designed according to specifications provided by GCL after clean-
out and inspection of SJ-6. Three pressure transducers will be installed as part of the packer/well
screen assembly; bne each above the upper and below the lower packers, and one between the
20
K 001734
packers. The packer assembly wiU be inserted into SJ-6 and lowered to a predetermined depth and
the packers inflated. The screen for each discrete sampling event will be placed at the approximate
center of the following proposed sampling intervals:
1) The center of the sediment column in SJ-6 after the interval is determined during clean-out operations.
2) 730-812 feet.
3) 660-730 feet.
4) 550-660 feet.
5) 490-550 feet.
6) 330-490 feet
7) 230-330 feet.
8) 19O-230 feet.
Intervals 2 through 8 were selected to correspond to the samples collected in the REM IV
investigation and presented in Table K-10 of CH2M Hill, May 1988.
Once the packer/well screen assembly is in place, pumping will begin. Pumping will continue until
several casing volumes (l)etween the packers) have been purged from the well. Pressure changes
in each transducer will be monitored to identify leakage from above and below the packers within
the borehole and well casing. The following calculation will then be performed to estimate leakage:
Q = K * dh/dl • A
where,
Q = leakage around the packer [L'/TJ,
dh = head difference [L],
dl = length of packer [L],
A = cross sectional area of the filter pack [L^], and
K = hydraulic conductivity of the filter pack [L/T].
21
001735
The sum of Q for the upper packer and Q for the lower packer can then he compared with the
total discharge from the pumped well to determine the approximate percent of leakage around the
packers. This method will yield an approximation that will aid in the interpretation of the depth-
discrete sampling results and comparison of results with previous sampling.
After the well has been purged, samples will he coUected directly frora the purap following prbtocol
presented in Appendbc D of the QAPjP (GCL, 1990a) and submitted for chemical analysis.
3.6 WELL ABANDONMENT PROCEDURES
These comprehensive procedures will be followed for all wells to be abandoned under this project.
Appropriate sections of these requirements will be applied to each weU according to its particular
situation and type of completion. The objective in each case will be to restore as nearly as
possible, those subsurface conditions that existed before the well was constructed in brder to
prevent the well from serving as a conduit for vertical inter-aquifer, ground-water movement. The
abandonment activities will be conducted in such a manner as to protect the property on which a
well is located and to restore each well site to a condition acceptable to the owner. Prior to
abandonraent of a well, a written agreement will be made with the owner concerning conditions
of the work and final site restoration.
Contractor specifications for well abandonraent are included in Appendbc D.
3.6.1 Perraits and Inspections
Before abandoning any well, GE will obtain all required permits. GCL will contact the appropriate
local agencies and the owner of a well 24 hours prior to commencing any work on the well. These
agencies and the owner wiU also be notified when sealing materials are to be placed in a well so
that inspections can l>e scheduled if desired.
3.6.2 Preliminary Work
Before a well is sealed, it shall be investigated to determine its condition, details of cbnstruction,
and whether or not there are obstructions that will interfere with the process of sealing.
22
001736
1. If there are any obstructions, they shaU be removed, if possible, by cleaning out the hole. If the obstruction is in the form of hardware (rather than fill or cave material) and cannot he removed, a tremie pipe will have to pass beneath the obstruction to place sealing materials Ijelow the obstruction, eventually leaving the obstruction sealed in the well.
2. Where necessary, to insure that sealing material fills not only the well casing, but also any annular space and nearby voids, appropriate depths of the casing shall l>e perforated or otherwise punctured.
3. In drUled wells that have no conductor pipe instaUed, or in the case of a gravel-packed wells without a surface seal, it may he necessary to remove some of the upper part of the casing. However, in some cases this can be done only as the well is filled. In hand dug wells, as much of the lining as possible shall be removed prior to filling.
4. For the protection of the seal at the land surface, and to facilitate the future use of the weU site, a hole at least one foot larger in diaraeter than the original drUled hole shall be excavated around the outside of the well casing to a depth of five feet below the ground surface. The well casing is then to he cut off sbc inches above the t)Ottom of this excavation, and removed. During the sealing operation, the sealing material used to fiU the weU shall t>e allowed to spill over into the excavation and filled for a thickness of at least one foot to form a cap, which has a diameter of at least one foot greater than the diameter of the original driUed hole. This procedure shall result in the exposed edge of the casing being covered with sbc inches of sealing material. After the sealing material has set, the excavation is to t)e filled with compacted native soil.
In cases where the site is developed and/or a five-foot-deep excavation around the well is not
practical, a minimal excavation which allows the sealing material to form a cap at least one foot
thick with enough additional space to allow for adequate surfacing, may be used.
3.6.3 Placement of Materials
The following requirements shall be observed in placing sealing material in wells to be sealed,
plugged and abandoned:
The well shall be completely filled with sealing material from the true bottom bf the well to the surface. Placement shall be by methods that prevent free fall, dilution, or separation of material.
Neat cement, cement grout, or concrete, shall be placed in the well from the true bottom of the well up to the surface. Cbncrete wiU not be used where tremie pipe and/or pressure grouting is required. In rotary-drilled wells or gravel-packed wells, the seal is to be placed in the gravel pack through existing or new
23
001737
perforations, as required, to prevent interaquifer flow either through the well or around the outside of the casing in the filter pack.
Where the head (pressure) producing flow is great, special care and special methods must be used to restrict the flow while placing the sealing material. In such cases, the casing must be perforated opposite the area to be sealed, and the sealing material forced out under pressure into the surrounding formation.
If there is an annular space (gravel-packed wells) or a space between the drilled hole and the well casing, the well is to be perforated at appropriate depths, or the casing is to be removed before seaUng. The size and spacing of the perforations shall provide sufficient openings through which grout can pass. A grouting (tremie) pipe shall be placed inside the well casing and the well filled from the bottom of the weU up to the surface. The perforated portion shall be filled by a pres-suregrouting method until refusal, lliis procedure is to apply also to the annular space between a conductor pipe and well casing. If an annular space exists between the drilled hole and the conductor pipe, it shall also be sealed. If the annular space is restricted, the grouting (tremie) pipe may he jetted in place.
If the annular space of a well has previously been sealed with an appropriate sealing material, the seal need not be disturbed. However, if possible, the seal will be inspected to ensure that it conforms with the standards presented in this remedial design.
To assure that the weU is filled and that there has been no jamming or "bridging" of the sealing material, verification shall be made that the volume of material placed in the well installation at least equals the volume of the empty hole.
The sealing material shaU be allowed to spill over into the excavation arourid the top of the well to form a cap at least one foot thick.
After the well has been properly filled, including sufficient tirae for sealing raaterial in the excavation to set, the excavation shall be backfilled and compacted with native soil.
3.6.4 Sealing Materials
Acceptable impervious sealing materials include neat cement, cement grout, or concrete. Concrete
should only be used for shallow, dry holes and either neat cement or cement grout, as described
below, wiU be selected for aU other wells:
A neat cement mbcture shall be composed of one bag of Portland cement to five to seven gallons of clean water. Two to five percent bentbnite clay can be added to cement mbcture. Reducing the bentonite percentage to 2% may be necessary
24
001738
where perforating is required to ensure that the grout is not overly viscous, preventing a complete seal of the well bore.
Ceraent grout shall be composed of not more than two parts of sand and one part of Portland ceraent to five to seven gallons of clean water.
3.6.5 Temporary Cover
During periods when no work is being done on a well, such as overnight, or while waiting for
sealing material to set, the well and surrounding excavation, if any, will l>e covered. The cover
will be sufficiently strong and anchored well enough to prevent the introduction of foreign material
into the well, and to protect the pubUc frora a potentially hazardous situation.
3.6.6 Abandoned Cathodic Protection Wells
Abandoned cathodic protection wells and uncased or cased test holes deep enough to cause
interaquifer movement of groundwater will b>e sealed in the same raanner as other abandoned
wells.
3.6.7 Special SeaUng Standards for Shallow Monitoring Wells
Shallow monitoring wells may be abandoned by one of two methods:
The casing may be drUled out to the full depth of the weU, then cement grout placed from the Iwttora of the hole up to the surface by tremie method.
The well may be sealed by pressure-grouting if its construction detail shows existing sand pack or other filter pack is not more than three feet above existing perforations. In this situation, neat ceraent raay be tremie-pumped into the weU. A cap will then be placed on top of the casing with an opening for a small diaraeter tremie pipe. SeaUng material will then be pumped under pressure with the casing sealed at the surface untU refusal of sealing material is reached.
3.7 OPERATION AND MAINTENANCE OF GROUND-WATER MONITORING PROGRAM
The ROD requires that the effectiveness of the remedial action be monitored and evaluated.
Ground-water quality will be monitored for 30 years; however, GE will be responsible for the
operation and maintenance (O&M) of the monitoring system for a period of one year, as required
by the ROD. After one year, O&M of the monitoring systera will becorae the responsibility of the
25
001739
State of New Mexico. O&M will consist of collection and analysis of ground-water saraples, repair
of monitor wells as required, and periodic site inspections.
The sampling program will be conducted quarterly for the first year. All sampling and sample
analyises will be conducted in accordance with the QAPjP (GCL, 1990a) prepared and approved
for this remedial action. Ground-water samples will be collected and submitted for analysis of the
organic compounds that were detected in SJ-6 (Table 3-1) during the RI/FSs.
An inspection of the site and of the monitoring wells will be conducted concurrent with quarterly
sampling. At that time any repairs to the raonitoring systera that are necessary wiU be raade.
After the four quarterly sarapling events have beeri corapleted O&M of the raonitoring systera will
be relinquished to the State of New Mexico.
26
001740
4.0 REMEDIAL DESIGN IMPLEMENTATION SCHEDULE
The schedule for the San Jose-6 RD/RA activities is shown on a Gantt chart (Figure 4-1). This
schedule does not include any operation and raaintenance phases that wUl follow the RD/RA The
schedule differs from the schedule found within the Remedial Action Plan (RAP) in two ways.
First, the RAP specifies completion of the RD within 160 days of contractor selection versus 90
days in this document. Second, the RAP specifies implementation of the RD within 45 days of
EPA approval versus 21 days in this schedule. This new time-table is consistent with the ORDER
and EPA's comments on the RAP.
TASK SCHEDULE
Design Remedial Action Coraraence Upon Coritractor Selection and Complete Within 90 Days of Contractor Selection
Impleraent Remedial Action Coraraence Within 21 Days of EPA Approval of Remedial Design
Operate Ground-Water Continue Until Action is Terminated or 30 Years, Quality Monitoring System Whichever Is Earlier
As specified in the ROD (page 25), operation and maintenance (O&M) will include ground water
monitoririg, any repair of monitoring wells, and periodic site inspections. O&M will be the
responsibUity of the State of New Mexico one year after the construction phases of the reraedial
action are completed.
27
001741
5.0 REFERENCES CITED
CHjM Hill, 1988, Reraedial Investigation Report SJ-6 Superfund Site, South Valley Area, Albuquerque, New Mexico, vol. 1 of 4.
Engineering-Science, 1983, Installation Restoration Program, Phase I - Records Search, Air Force Plant No. 83, Albuquerque, New Mexico.
GCLy 1989, Remedial Action Plan for the Sari Jose-6 Operable Unit, South Valley Superfund Site, 15 p.
GCL, 1990a, Quality Assurance/Quality Control Project Plan for the San Jose-6 Operable Unit, South Valley Superfund Site, 20 p.
GCL, 1990b, Worker Health and Safety Plan for the San Jose-6 Operable Unit, South Valley Superfund Site, 25 p.
Geraghty & Miller, 1989, Remedial Investigation Report, 3301 Edmunds Street, S.E., Albuquerque, New Mexico, vol. I of IV, 69 p.
Harding Lawson Associates, 1984, Technical Memorandum No. 1, Existing Data CoUection and Evaluation, Off-site Remedial Investigation, South Valley Site, Albuquerque, New Mexico, 38 p.
McQuillan, D.M., Oppenheimer, S. J. and Meyerhein, R. F., 1982, Organic Ground-Water Pollutants in the South Valley of Albuquerque, New Mexico, NMEID, Santa Fe, New Mexico.
0460/SJ600014.RPT
28
001742
WESMECO
'GALENA
cc
NORTH
CEMETERY
cc <a:
APPROXIMATE BOUNDARY .SUPERFUND STUDY AREA
=3
•z.
FIGURE 3-1
LOCATION MAP OF SJ-6 OPERABLE UNIT
001743
CEMENT-FILLED PRDTECTIDN PDSTS <3)
STAINLESS STEEL LOCKING CAP
CEMENT FILLED STEEL GUARD PIPE
VDDD
8 In. STFFI SURFACE CASING
NEAT CEMENT SLURRY WITH 57. BENTDNITE
4' STAINLESS STEEL, PVC, DR CARBON STEEL PIPE
4 la STAINLESS STEEL PIPE
BENTDNITE PLUG
g°/'*0 SAND
TDP DF SCREEN
STAINLESS STEEL SCREEN <_20_ SLDT)
to/so SAND BDTTDM DF SCREEN
4 '"• X 5' STAINLESS STEEL PIPE
TDTAL DEPTH DF WELL
TDTAL DEPTH DF BDREHDLE
FIGURE 3-2
TYPICAL MDNITDR WELL CDMPLETIDN DIAGRAM
001744
.WELL ^ ^ CASING
.PLUNGER
,SAND PUMP
-CABLE
®
.FLAP VALVE
.SEDIMENT N 1 x
L
^ ^ • L M B J t a i ^
(D ©
( ^ SAND PUMP IS LOWERED INTO WELL WITH THE PLUNGER DOWN AND THE FLAP ^ - ^ VALVE CLOSED.
( S ) PLUNGER IS RETRACTED AND THE FLAP VALVE OPENED, CREATING A SUCTION ^ - ^ WHICH DRAWS SEDIMENTS INTO THE SAND PUMP.
( C ) PLUNGER IS ENTIRELY RAISED AND FLAP VALVE CLOSES ALLOWING SEDIMENTS ^ - ^ -^0 BE RETRIEVED TO THE SURFACE VIA THE SAND PUMP.
FIGURE 3 - 3
SCHEMATIC SHOWING SAND PUMP OPERATION
001745
n l - i
STAINLESS STEEL PIPE
BOREHOLE
nLTER PACK
SJ -6 WELL SCREEN
STAINLESS STEEL SCREEN
STAINLESS STEEL PIPE
F" - • • • • 1 -
TRANSDUCER CABLES
PRESSURE TRANSDUCER
PACKER
PRESSURE TRANSDUCER
PACKER
PRESSURE TRANSDUCER
FIGURE 3 - 4
PACKER/WELL CASING ASSEMBLY
001746
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Figure 4 - 1 . Gantt Chart Schedule for the San Jose-6 RD/RA.
001747
TABLE 3-1
ORGANIC COMPCXJNDS DETECTED IN UELL SJ-6
COMPOUND
Acetone
Dichlorobenzene
Trichlorobenzene
Tet rachIorobenzene
1,1-Dichloroethane
1,2-Dichloroethane
1,1,1-Trichloroethane
1,1-Dichloroethene -
Trichloroethene
Percholoroethene
Methylene Chloride
Bis(2-Ethylhexyl)Phthlate
Butylbenzyl Phthalate N-Nitrosodiphenylamine
Di-N-Butyl Phthalate
Diethylphthalate
FEDERAL
SDWA
MCL
5 60 7 5
-
NEW MEXICO
WATER OUALITY
STANDARD
----
25 10 200 5 100 20 100
2/19/81 2/82 4/23/84 5/4/84 4/29/87
10
10
'ib 10
--4 3 1 3 1 1 3
d r 4 ----
_.
--
--------11 ----
< ^ 7J --
. .
--
-.
--------5J ----7J
OX 5J --• •
8J 4J
490 ND NO ND 5.6 ND ND 8
4.6
2 7.1 15
4
8
..
- standard not available.
--Not available, or contaminant not analyzed for.
J Estimated concentration below method detection limits.
ND Concentration below method detection limits.
Note: all values ug/l (ppb).
(Table 3-1 was taken from CH2M Hill, 1988, Remedial Investigation Report, SJ-6 Superfund Site,
South Valley Area, Albuquerque, New Mexico, Vol. 1 of 4, p. 4-84.) GEWORK/TA
001748
TIIBLE 3-2 LOCflTIllK m CBMSTmiaiOH SPUIFICflTKlNS fOB
(IBItNDONED a£LL5 IN UICIKITr Of SJ- i OPESflBLE UNIT
Page ! of 2
UELL LOCATION
A-l 13301 Edwinds St. 19.5.5.222
BC-1 IBaker Crasodities |In Bldg *\- 700' U. of Broaduay Blud SE land *\- 200' 5. of Uooduard Sd SE
REF I -i m |T2
im
TDEPTH (FT) REF
CSC SZ S TYPE REF
CASINC ELED SEF
SCREEN YEAR m-SEO REPORTED INT (FT) REF DRILLED REF PERniT REF STATUS REF USE REF LOG REF REflARKS/REF
I B-1 ICeneral Electric 1115
(10.3.32.342 |T2 I Beneath uater touer «\- 600' II. of Broaduay |T8 (Blvd. SE i * V 300' S. of Uooduard Rd SE I
B-2 ICenerat Electric 110.3.32.324 I
|fl5
IT2
I
im |T8
CA-28 18. side Arno S t . , 200' SE of SJ-i Chevron
| * \ - 0.13 l i . S. of UesKco Au SE i * \ - 50' of
IArno St SE j
I I CA-29 | 8 . side Arno S t . , E. of Chevron Tank Fara |l1i
(Chevron « \ - 0.4 a i . S of 8e»eco Ave SE t |T8
\ * \ - 0.4 l i . S of itesneco Dr. SE S A - 50' U. (
(of Arno St. SE j
C-l
C-2
(Ceneral Electric 110.3.32.413
(Teiaco (10.3.32.433
in2 IT2
im |T2
C-3 (Chevron (IW (10.3.32.432 (T2 (•\- 500' E. of Broaduay Blvd SE i • V 250' S. |T8 )of Uooduard Rd SE |
HS-1 (Eeneral Electric
nEL-1 (Uhitfield 110.3.32.412 (Noua/Sundace Equip.
NPLEE (Ceneral Electric
(m
im IT2 |T5
(Hi
132 Tl 132 T2 132 T7 132 T5
94 T5 100 T9
90 Tl 42 T2 90 T7 <5T5 45 T8
45 T2
510 T7 510 T8
470 T7 470 T8
94 n 94 T7
44 Tl 44 T2 44 T7 44 T5
170 Tl 170 T2 170 T4 170 T8
178 T7
54 Tl 54 T2 54 T7 54 T5
H/A
45 T2 4S T2
8 T9
8S T2 BST7 BT8
8ST2
14 T7 14 TB
14 T7 14 TB
N/A
IOS T2 IOS T7 10 T4
H/A
4 T7
2S T2 25 T7
N/A
5004.59 T2 5004.59 T7 5004.59 T5
4B91 T5
4938 T7 4935 T4 4938 T5
4938 T7
4948 T7 4948 Te
4950 T7 4950 TB
4935 T7
4934 T7 4934 T5
4941 T4 4948 TB
4937 T7
4942 T7
H/A
112-150 Tl 112-130 T2 112-150 T7 112-150 T5 112-152 T4
N/A
50-40? ne
N/A
570-494 T7
523-454 T7
82-94 T2 82-94 T7 82-94 T4
44 FT T4
N/A
N/A
H/A
H/A
1945 T2 1975 ne
1952 T9
1954 ne 1955? T2 1954 T8
1955 n 1953 T7
1949 T7 1949 TB
1949 T7 1949 TB
1959 T2
1955 n 1955 T7
1952 T2 1952 T8
H/A
1957 T2 1957 T7 1
N/A !
II164891 T2
H/A
N/A
H/A N/A
H/A
H/A
H/A
HA
H/A
H/A
RE73 T2
H/A
- 1 lABAHDOHED Tl (ABANDONED T7 (UNUSED T5 1 i 1 (ABRMDOHED Tl (IH-U5E T7 (UHUSED T5 1 1 (ABAHDOHED Tl (ABAHDOHED T7 (UHUSED T5
1
1
1 (DESTROYED T7 1 DESTROYED Tl (DESTROYED Tl (DESTROYED T7 1 1 (DESTROYED Tl (DESTROYED T7 1 1 I (DESTROYED Tl (DESTROYED T7 1 1 (IH-USE T7
1 1 1 1 (ABANDONED Tl (ABANDONED T4 1 1 1 (DESTBOYEO Tl 1 DESTROYED T7 1 j
(ABAHDOHED Tl (UHUSED T7 1 (UNUSED T5 1 i (ABANDONED Tl ( 1 1
IIHOUSTRIAI T7
IHOaSTmSL T7 DOnESTIC T9
INDUSTJIAL T7
IHDUSTRIflL T7
H/A
N/A
IHDU5TRIAL T7
SEASOHAL T7 INDUSTRIAL T5
DOMESTIC T4
N/R
OOflESTIC T7
N/A
\m \
\m \
(H/A {
IH/A (
IDRLI T7 jOLO SJ-4/T7
IDRLR T7 (OLD SJ-5/T7
H/A (
H/A (
H/A (
N/A (
H/A (
N/A (
001749
TRELE 1 - : {CONTimiEO L0C3TI3H AND COHSTR'JCTIOH SPECIFICATIONS FOR
ABANODHEE UELLS IN VICINITY OF Sj-o CPEPAELE UNIT
raje .
TDEPTH c s : ;• 5 C8SI1IG UELL LSCSTISN PEF
SJ-: (S. iide San Jose Aue., IOC E. of Topeka St. (n7 | (10.3.32.141 (T3 ( (408 Uesneco Rd. SE (T5 ( I I I I ! I
SJ-3 [NU Cor. - Arno St. i Uesaeco Dr. ((17 | (10.3.52.412 \n \ I I I I I I I 1 I
SJ-4 IS. side Uooduard Rd., 415' E. of Broaduay (n7 ( (10.3.32.414 (T3 |
SJ-9 (SE COR. - Uooduard Rd. 8 Uilliaas St. (n7 (10.3.32.314 (T3
I I I UL-I (E. side Arno St., 1050' N. of Uesaeco Dr. \ n i (
(FT) SEF
417 Tl 471 T7 471 T4
505 Tl 503 T7 505 T5 505 LL
912 T7 1200 LL 912 T5
745 TI 745 V 1200 LL 745 T5
54 T7 51 T4
TYPE BEF
14 T7
15 T7
14 Tl 14 T7 14 LL
14 T7 14 LL
N/A
ELEV SEF
4940 T7 4940 T4
4954 T7 4953.64 T5
4942 T7 4942.88 T5
4940 T7 4943.44 T5
4929 T4 4953 T7
INT (FT) RE-
N,'A
560-503 Tl 360-503 T7 340-505 T5
180-912 HB 180-912 T7 180-912 LL
189-745 TI 189-745 T7 189-745 T5 196-748 LL
41-51 T4
DRILLED REF
1949 T7 i 1949 T3 1
1949 T7 ( 1949 T3 (
1945 T7 ( 12-14-45 LL 1
1965 T5 (
1945 T7 ( 11-05-45 LL 1
1 1
1942 T7 (
I
SCREEN YEAR t T . - l l B REPORTED r REF ETST:JS SEF USE
N,'A
N/A
N/A
H/A
N/A
(DESTROYED T! (DESTROYED T7 I ABANDONED T5 (DESTROYED T4 I (SHUT-OOUH T7 (ABAHDOHED T5 (UHUSED T5
(UHUSED T7
I
(ABAHDOHED Tl (UHUSED T7 (ABAHDOHED T5
(DESTROYED Tl (DESTROYED T7 (IH-USE T6
PUB. SUP. T7 lOUT SERO'78 T4
N/A
KEF LOG SEF
N/A
?.inn?.r.i/-'.v
H/A
N/A
INDUSTRIAL T4
DRLR
LITH
LITH
H/A
ORIG SJ-IO,HOU 5J-4/T5
CSC TYPE! S • STEEL
H/A ' IHFORnATIOH NOT AVAILABLE AT TIHE OF PUBLICRTIOH
REFS! n;.t1flP, T'TABLE
ni Geraghty i Niller, January 1989, Figure 3. 112 ncQuillan, et. al., Deceaber 1982, Final Draft, Figure 4. n5 Hot Used n4 CH2n Hill, nay 1988, Figure C-l, Appendix 0. n5 Engineering Science, Nouesber 1983, Figure 5.20, p 3-41. n4 Harding Lauson Assoc, Hach 28, 1984, Plate 3. n7 Hap prouided by K. Suners, City of Albuquerque. Tl CH2n Hill, Table 4-15, p 4-34, Unpublished Draft froa EPA. T2 r.cQuillan, et. al., Decenber 1982, Final Draft, Table Cl. T5 Preliainary flaster List Of Historical Uell Oata (revised 10-24-T4 Engineering Science, Noueaber 1983, Table 3.4, p 3-57. T5 Harding Lauson Assoc, Hoveaber 4, 1984, Table 4. T4 CH2n Hill, April 24, 1985, Table 0-2, Appendix A. T7 Harding Lauson Assoc, Barch 28, 1984, Table A-1. T8 Borjkland and tlaxuell, 1941, Table 1 T9 Declaration of Ouner of Underground Uater Right filed uith NnSEO, Declaration Ho RG-41204 filed 2-5-84
prouided by K. Suaaers, City of Albuquerque.
G:\GEU0RK\TEL5-:.UKl
001750
APPENDIX A
ACCESS AGREEMENT
001751
March 19, 1990 Document Control # - BOT00009.DOC Page 1 of 3
ACCESS AGREEMENT
This Access Agreement is made and entered into between General Electric Company (GE) and , (Owner), owner(s) of the premises located at , Albuquerque, New Mexico (Premises), on , 1990.
The United States Environmental Protection Agency (EPA) has approved a Record of Decision (ROD) for the purpose of implementing certain response activities pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), for that portion of the South Valley, Albuquerque, New Mexico Superfund Site known as the former Air Force Plant 83/General Electric (Plant 83) and the San Jose Well Number 6 (San Jose-6) Operable Units.
The CERCLA response activities required for these two operable units include the installation of certain ground water monitoring wells and other associated testing in the vicinity of Plant 83 and San Jose-6 and the periodic taking of samples from such areas.
GE has received an administrative order from EPA regarding CERCLA response activities to be undertaken at Plant 83 and San Jose-6 and has hired Geoscience Consultants, Ltd. (GCL) to undertake the performance of some of the remedial activities.
GCL has been approved by EPA to perform remedial activities; therefore, GCL now requires access to the premises in order to perform monitoring and remedial activities.
NOW, THEREFORE, in consideration of the mutual covenants contained herein, GE and Owner agree as follows:
1. Owner agrees to give GCL and GCL's contractors and subcontractors, as well as their employees, agents and authorized representatives, periodic access to the Premises to undertake all work necessary to complete the following Remedial and Monitoring Activities:
A Soil vapor surveys on the Premises.
B. Soil borings and samples of soils at the surface and subsurface.
C. Install monitoring well(s) on the Premises and obtain water samples from such wells.
D. Clean, plug and abandon water well(s) located on the Premises and obtain periodic samples from those wells.
001752
March 19, 1990 Document Control # - BOT00009.DOC Page 2 of 3
2. Owner agrees to give GE and EPA and their employees, agents and authorized representatives access to the Premises for the sole purpose of overseeing performance of the activity or activities identified in Paragriaph 1.
3. Owner agrees to arrange an access schedule with GCL which allows for the prompt performance of the activity or activities identified in Paragraph 1.
4. GE agrees to require GCL and any of its contractors and subcontractors to take all reasonable steps necessary to minimize interference with Owner's use of the Premises during performance of the activity or activities identified in Paragraph 1.
5. Owner understands that the performance of the activity or activities identified in Paragraph 1 may involve the disturbance of soil and vegetation on the Premises. GE agrees to require GCL and any of its contractors and subcontractors to use all reasonable efforts to restore the Premises to substantially the same condition as existed prior to any such disturbance upon completion of the activities identified in Paragraph 1. Furthermore, GE agrees to repair any damages to structures which could occur incidental to the activities identified in Paragraph 1 at its sole expense.
6. Owner and GE agree that any well equipment including, without limitation, any pipes, pumps or wire, removed in the performance of the activity described in Paragraph 1(A) will remain the property of Owner and will remain on the Premises.
7. Owner understands that performance of the activity or activities identified in Paragraph 1 may involve the discharge of well development water and associated silt and sand. GE agrees to require GCL and any of its contractors and subcontractors to take all reasonable steps necessary to dispose of and manage such water, silt and sand in accordance with the procedures prescribed in the EPA approved work plans for the remedial activities and all applicable Federal, State and local laws. Any material developed from the activities described in Paragraph 1 will be removed from the Owner's Premises promptly at GE's expense.
8. By entering into this Access Agreement with Owner, Owner understands and agrees that GE expressly reserves and is not waiving any claims, actions or causes of action which GE now has or may have against Owner or any other person under Federal or State law, including CERCLA, for any loss, liability, damages, penalties and costs arising out of any CERCLA response activities at Plant 83, San Jose-6 and at any other portion of the South Valley Superfund Site, Albuquerque, New Mexico.
9. This Access Agreement is not intended by the parties to be, nor shall it be construed as, an admission by GE or Owner of any liability under Federal or State law, including CERCLA, arising out of any release or threat of release of a hazardous substance from or within Plant 83, San Jose-6 or any other portion of the South Valley Superfund Site. Further, this Access Agreement is not intended by the parties to be, nor shall it be construed as, an admission by GE that an imminent and substantial endangerment to the public health or welfare or the environment exists at Plant 83 or San Jose-6 or at any other portion of the South Valley Superfund Site for the purposes of Section 106(a) of CERCLA, 42 U.S.C. 9606(a).
001753
I a March 19, 1990
Document Control # - BOT00009.DOC Page 3 of 3
10. Owner understands and agrees that GCL and GCL's contractors and employees, as well as their employees, agents and authorized representatives, are not employees, agents, joint venturers or partners of GE.
11. This Access Agreement shall be modified only by a written agreement signed by authorized representatives of each party hereto, and shall be interpreted, construed in accordance with and governed by the laws of the State.of New Mexico.
IN WITNESS WHEREOF, the parties have executed this Access Agreement on the date herein first above written.
OWNER: GENERAL ELECTRIC COMPANY:
By: By: •
Its: Its:
001754
APPENDIX B
TEXT OF BROCHURE FOR AREA LANDOWNERS
001755
March 15, 1990 Document Control # - BOT00015.DOC Page 1 of 4
DRAFT FOR SOUTH VALLEY BROCHURE
BACKGROUND ON THE SOUTH VALLEY SUPERFUND SITE
As you are probably already aware, your property is located within or adjacent to the South
Valley Superfund site as designated by the United States Environmental Protection Agency
(EPA). The EPA began an investigation of this area several years after the City of
Albuquerque closed city well San Jose 6, (SJ-6) due to solvent contamination in 1979. The site
includes the approximate area shown on the map below.
The EPA concluded their investigation of the area in 1989 and issued a Record of Decision
(ROD) for the SJ-6 site and the former Air Force Plant 83 site, now owned by the General
electric Company (GE). Since GE is the current owner of the former US Air Force Plant 83
property, GE is now in the process of performing remedial activities for both SJ-6 and its
property.
The ROD issued by the EPA for the SJ-6 site determined that residual contaminants found in
the area do not pose a significant health threat; however, certain actions would be required to
prevent a further decline of the ground water quality. The ROD for the GE plant site requires
lhat residual soil and ground water contamination be clearly identified and remediated through
the use of active cleanup systems. It is for the purpose of implementing these requirements
that GE is requesting access to your property.
001756
March 15, 1990 Document Control # - BOT00015.DOC Page 2 of 4
SUMMARY OF EPA-APPROVED REMEDIAL ACTIONS
TO BE PERFORMED BY GE
Geoscience Consultants, Ltd. (GCL) has been employed by GE to do those things required by
EPA at the SJ-6 site and the GE plant site. GCL has an excellent national reputation in
hazardous materials cleanups, and will perform the work out of its headquarters office located
here in Albuquerque.
To help avoid a further decline in the quality of ground water in the South Valley, GCL will
determine the conditions of all existing water wells in the area. Having this information will
allow us to develop sound methods of plugging and sealing the wells. That will prevent wells
from acting as avenues of contamination in the subsurface, causing problems to adjoining wells.
We will also install wells used to monitor and sample ground water, so that levels of contamina
tion can be checked periodically. This way if levels increase, or other problems occur, they can
be resolved as quickly as possible.
Among activities we'll be conducting are included:
identifying all existing wells measuring and testing existing wells installation of new monitoring wells soil borings and sampling sampling of soil vapors landowner interviews and site histories
It will be necessary for our engineers and scientists to be on your property for some of those
activities. We will give you as much advance notice as possible, and you should know that
some of the activities may require drilling or sampling equipment to be used on your property.
We will make every effort to insure that any property damage is avoided. Should some damage
occur; however, it will be repaired upon completion of the investigation. Your family's health
and safety are of utmost importance to us, and no effort will be spared to make certain that
they are protected.
001757
March 15, 1990 Document Control # - BOT00015.DOC Page 3 of 4
WHAT WE ASK OF YOU
Your cooperation in granting us access to your property is necessary to the success of the
remediation of the South Valley Su[)erfund Site, and is sincerely appreciated. You can assist us
in improving the quality of ground water in the South Valley. Any information which you have
regarding the location of water wells in the areas shown on the map will be helpful, and we
would urge you to contact us at the phone numbers listed below. With your help, we can be
more certain that all domestic wells will be l(x:ated and tested and all of the site's ground water
is protected.
A simple access agreement which you must sign before we gain access to your property details
the limits of what we will be allowed to do on your property. It provides you with protection,
and with the assurance that we will completely restore your property to substantially the same
conditions when we arrived; and any damages are fully repaired.
Should you be the owner of, or know of, a domestic well, or if you have any questions about
this program, please contact either Scott Hale or Alberto Gutierrez at the numbers noted
below.
Thanks very much for your cooperation.
Mr. Scott M. Hale Mr. Alberto Gutierrez Public Participation Coordinator Principal-in-Charge Geoscience Consultants, Ltd. Geoscience Consultants, Ltd. (505) 842-0001 (505) 842-0001
0459\BOT00015.DOC
001758
APPENDIX C
MATERIAL SPECIFICATIONS FOR MONITOR WELLS
001759
STAINLESS STEEL PRODUaS
Stainless steel provides high strength, long life and minimum interference with sample analyses. The material of choice when organic contaminants are present. Continuous slot construction produces high per cent open area. Greater volume of water can enter a shorter length of screen which allows more representative sampling. Flush joints between screen and casing mean sampling devices won't hang up inside. Filter pack and backfill won't bridge outside. Patented locking cap available for protection of the well.
Coarse thread minimizes make-up time and reduces chance of cross-threading. Chemically inert O-ring creates a stronger, tighter seal for leak-proof screen and casing joints. Readily available in type 304 stainless steel. 316 stainless steel and other metals available upon request. Drive points available in 1 Vi in. and 2 in. diameter. Screen and casing Individually wrapped for sanitary protection during shipment. Special cleaning procedures are used on each screen and length of casing prior to packaging.
SCREENS CASING SCREEN
SIZE
iy4lNCH
2 INCH
4 INCH
5 INCH
6 INCH
DIAAtETERdN.)
O.O.
1.660
2.375
4.500
5.563
6.625
l.D.
1.130
1.850
3.875
4.875
5.875
SHIPWr (IB/FT)
3.0
4.0
6.0
7.5
9.0
OPEN AREA (IN.*) | 10-SlOT (.OIO'O
9.7
13.2
25.8
31.3
29.5
20-SLOT
17.0
23.1
44.9
54.6
52.9
CASINO SIZE
1'74 INCH
2 INCH
4 INCH
5 INCH
6 INCH
CASING O.D. (IN.)
1.660
2.375
4.500
5.563
6.625
FITTING I.D. (IN.)
1.380
2.067
4.026
5.047
6.065
SHIPWT (LB/FT)
1.2
1.7
4.0
6.5
7.7
• Caslns Is Schedule SS and meeU ASTM spec A 3 M or A77B.
IJ I
MATERIALS STRENGTH DATA
NOMINAL SIZE
2' sched. 40 casing
2 ' sched. 5 casing
2 ' v/ire wound screen
4 ' sched. 40 casing
4'sched. 5 casing
4" wire wound screen
5' sched. 40 casing
5' sched. 5 casing
5' wire wound screen
6 ' sched. 40 casing
6* sched. 5 casing
6' wire wound screen
O.O. (IN.)
2.375
2.375
2.375
4,500
4,500
4.500
5.563
5.563
5.560
6.625
6.625
6.620
l.D. i (IN.)
2.067
2.245
1.900
4.026
4.334
4.000
5.047
5.345
5.030
6.065
6.407
6.090
WT IB/FT
3.653
1.604
4.0
10.790
3.915
6.0
14.6
6.4
4.8
19.0
7.6
5.5
STRENGTH
COLLAPSE (PSI)
3,526
896
1,665
2,672
315
249
2,231
350
134
1,942
129
176
TENSILE (LB)
85,900
37,760
10,880
254,400
92,000
16,320
343,200
148,800
38,600
444,800
178,400
54,000
COLUAAN (LB)'
6,350
3,000
810
69,000
26,800
4,500
145,490
66,660
13,040
270,000
113,660
19,170
JOINT TENSILE (LB)
15,900
15,900
15,900
81,750
81,750
81,750
91,500
91,500
91,500
94,500
94,500
94,500
1. For all column calculations: span =
B. For stainless steel: Tensile strensUi
SO n, hinsed one end, fixed other end.
= 80,000 psi
001760
CHANNEL PACK SCREEN SPECIFICATIONS
1 . GENERAL: The Channel Pack Screen assembly shall consist of an inner screen and an outer screen, each formed by circumferentially wrapping a triangular shaped wire around a circular array of internal rods. The wire configuration must produce inlet slots with sharp outer edges widening inwardly so as to minimize clogging. For maximum collapse strength, each juncture between the horizontal wire and the vertical rods will be fusion welded under water by the electrical resistance method. The annulus between the inner and outer screen sections shall be segmented Into individual channels. The individual channels shall be filled with filter pack consisting of well-rounded grains of washed, rescreened silica sand. The channel dimension must be capable of accommodating a minimum filter thickness of 0.4-inch.
2 . DIMENSIONAL REQUIREMENTS: (See chart below for correct combinations.) a. The screen slot size shall be 0.010-inch
(0.020-inch). b .The required gradation of filter pack is 40-60
(10-20) filter sand. c.The minimum clear ID through the entire
assembly, including weld beads and connections shall be 2.0 inches (4.0 inches).
d.The maximum OD of the assembly shall be 3.28 inches (5.28 inches).
e. The minimum filter pack thickness shall be 0.4-inch.
f. The open area of the outer screen shall be a minimum of 17.7 (30.9,28.5,49.8) square inches per lineal foot.
g. The open area of the inner screen shall be a minimum of 15.4 (26.4,28.5,48.9) square inches per lineal foot.
3 . MATERIAL A N D FITTINGS: The well screen, attached end fittings, and all internal components shall be fabricated from corrosion-resistant type 304 stainless steel. End fittings provided with the screen shall be double entry, stub ACME, flush screw threads with Viton O-ring on male end fitting.
4 • CLEANING: Prior to final assembly, the screen and end fitting components shall be individually cleaned in the following manner: a. Immerse for 5 minutes in static bath of
phosphoric acid metal cleaner mixture, b.Pressure rinse-wash with a prescribed mix
ture of an alkaline degreaser detergent and cool water,
c. Rinse with warm water, d.Al low to air dry.
5 . PACKAGING: Screens shall be individually wrapped in 7-mil protective polyethelene prior to shipment.
U
CHANNEL PACK™ SCREEN APPLICATIONS
D Silty, fine-grained sediments. D Caving and heaving sands. D Deep aquifers. • Horizontal or angle drilling situations for
leachate collection at landfill sites. D Infiltration galleries. D Shallow dewatering in silty sands. D All auger-drilled boreholes.
s J
PHYSICAL DIMENSIONS AND OPEN AREAS
Filter pack gradation
Minimum clear ID
Maximum OD
Open area of outer screen (in. »m.)
Open area of Inner screen (In. Vft.)
Shipping wt.
2 inch
10 slot
40-60 silica sand
2.0 inches
3.28 inches
17.7
15.4
20 slot
10-20 silica sand
2.0 inches
3.28 inches
30,9
26.4
8 Ibs./ft.
4 inch
10 slot
40-60 silica sand
4.0 inches
5.28 inches
28.5
28.5
20 slot
10-20 silica sand
4.0 Inches
5.28 inches
49.8
48.9
16 Ibs./ft.
[ • • ] Johnson Filtration Systems Inc. ' * l l P.O. Box 64118
J l St. Paul, Minnesota 55164 - ' Tel. (612) 636-3900 Fax: (612) 636-0889
• J
001761
Aardvark Stsainless Steel ¥ A ^ Z
B Available for 2 " through 12"pipe diameters.
H Stabilizes and centers pipe, well screen,
and piezometers in groundwater monitoring and
other larger well installations.
laA/l stainless steel construction including
spring steel straps.
B Quality Centralizers spot-welded for high
strength.
B Centers 2 " pipe' adjusts up to 12" Dia. hole
a Centers 3 " pipel adjusts up to 12" Dia. hole
B Centers 4 " pipe; adjusts up to 12" Dia. hole
B Centers AVa" pipe, adjusts up to 12" Dia. hole
B Centers 5" pipe; adjusts up to 12" Dia. hole
B Centers 6 " pipe^ adjusts up to 20" Dia. hole
Centers 8 " pipe, adjusts up to 24 " Dia. hole
B Centers 10" pipel adjusts up to 26 " Dia. hole I
I Centers 12" pipel adjusts up to 28" Dia. hole
Mfinulacturcci by.
001762
THE MAINSTAY OF OUR BUSINESS Standard Products
1 ^
f %••
We have two distinctly different types of deposits to serve a complete spectrum of industries. Our Colorado Springs deposits ( are unique in that the sand sizes range from 4 mesh to 100 mesh. Our Gove Canyon Sand is better suited to serve the finer size ^ applications and exotic specialty sands. 3
COLORADO SPRINGS SAND Chemical Determination
Description - 4 + 8
Sample Size Designation Mesh
8 +12 -10 +20 -20 +40 -40
SiOj, % (Coffeen Method) Ai^O, % MgO. % CaO. % K^O. % Na^O. % Fe^Og. % TiO^. % LOI. % Feldspar Acid Soluble. 15% HCl. % Mud Acid Solubility (3HF:12HCI) Acid Demand at Ph 3
a tPh5 at Ph 7
Specific Gravity AWWA Porosity
97.3 0.45 0.01 0.02 0.17 0.05 0.15 0.02 0.26 1.50 0.28 1.10 2.80 0.80 0.40 2.63
45.20
98.2 0.49 0.01 0.02 0.21 0.06 0.14 0.02 0.40 1.80 0.07 1.41 0.31 0.90 0.50 2.64
45.20
97.8 1.20 0.01 0.03 0.60 0.17 0.12 0.02 0.33 5.10 0.34 2.26 0.31 1.00 0.60 2.62
45.60
94.5 3.20 0.01 0.03 2.12 0.34 0.17 0.02 0.21
15.60 0.32 4.44 3.80 1.60 1.10 2.63
47.10
83.9 7.08 0.03 0.07 4.96 0.58 0.79 0.14 0.43
34.60 0.98 6.21 5.60 2.80 1.80 2.61
48.20
J
GOVE CANYON SAND Chemical Determination
Description
Sample Size Designation Mesh
- 2 0 +40 - 4 0 +140M
Fe^Oa CaO Al,03 MgO NajO KjO TIO2 LOI (1000°C) SIO2 (by difference) Acid Solubility (15% HCL) Mud Acid Solubility (3HF:12HCI) Acid Demand at pH 3
at pH 5 a t p H 7
Specific Gravity Bulk Density—uncompacted tt/ft^
compacted AWWA Porosity Krumbein Roundness
Sphericity
0.040 0.025 0.12 0.013 0.010 0.048 0.013 0.30
99.43 0.15 2.2 6.3 5.5 4.3 2.62
89.6 97.0 44.7
.6- .8
.6- .8
0.053 0.055 0.37 0.022 0.013 0.19 0.012 0.18
99.10 0.22 5.1 6.5 4.9 3.8 2.58
93.3 98.7
M . - . o»->r.«o».«-.r«f f i i c i r \ n o t O Q 1 A O C
001763
OUR TOP OF THE LINE Specialty Sands
Modern filtration and gravel pack methods require a filter medium that is 98% within specifications. This type of screening efficiency was virtually unheard of several years ago Today, we produce these exotic materials on a daily basis. In fact, if you order a specialty sand, yve'll screen It to a 99% spec to further. assure satisfaction after shipping and handling.
I i
A d d i t i o n a l E x o t i c S a n d Tes t s
Test
Mud-Acid Soluble. Wt. %: Frac Sand Gravel Pack Sand
Gravel Pack Crush Strength Gove Canyon 20-40 %
Sample Designation 10-14
1.74 0.91
3.20
10-16
1.96 0.89
Specification Limit
2.00 Max. 1.00 Max.
4.00 Max.
r
Size
6-9 8-12
10-14 10-16 16-20 20-30 20-40 40-60
98-100% Passing
#6 sieve #8 #10 #10 #16 #20 #20 #40
98-100% Retained
#10 sieve #12 #14 #16 #20 #30 #40 #60
Note: H/laterials processed to your Uniformity Coefficient and Effective Size, by separate quotation.
A Word of Caution—Since test results do vary, it is recommended that you confirm with your own lab your specification requirements and the physical and chemical characteristics of this product. We give no warranty for our products either expressed or implied.
Warning: This material contains free silica—do not breathe dust. May cause delayed lung injury Wear government approved respirators and follow OSHA Safety and Health Standards for Silica.
V
Common Applications of CSSI Products:
Water Well Gravel Pack Waste Water Treatment
Filtration Water Filtration Hydro-fracturing Sand Oil and Gas Well
Gravel Pack
Industrial Grout Sandblasting Sand Foundry Sand Glass Sand
Colorado Si l ica Sand, Inc. 3250 Drennan industrial Loop
RO. Box 15615 Colorado Springs, CO 80935
Telephone (303) 390-7969 TWX 910-920-4992
001764
NEW MEXICO w-puunpa tne. Effective May 10. 1987
Volclay Grout A Tighter-Sealing Alternative to Cement and Ready Mix Grouting Materials
Volclay Grout is a high-solids, bentonite clay grout. It utilizes the proven sealing characteristics of bentonite clay to achieve a low permeability seal. The product is easily mixed and placed in the bore hole. It sets up into a clay plug of plastic consistency after 8 hours. Volclay Grout prevents Interaquifer transfer and groundwater contamination from surface water run-off. It remains flexible and tends to self-seal after movements of the well casing or ground formation, thus providing a more permanent seal than cement.
Maintains a tighter seal than cement or cementybentonite grouts.
Easy installation • mixes readily, pumps smoothly with existing drill rig equipment.
Remains pumpable and placeable for 2 hours, assuring a positive grout placement.
Won't damage PVC pipe since no heat is generated during set-up.
Product bonds to well casing • does not shrink or cracl^ in sub-strata ground formations.
Only one-sixth the quantity of Volclay Grout is needed compared to cement to product an equivalent volume of grout. There's less to carry to a job site, less to mix, less to handle.
Seals all types of boreholes and well casing.
Provides a positive water tight barrier.
Can be positively placed ensuring uniform consistent application success.
Remains flexible; will not shrink or crack below surface soil grade.
Product will provide a positive high solids seal for Geotechnical Monitoring wells, water well casing and abandoned bore holes.
PART NO.
DISCOUNT SCHEDULE 30% F.O.B. Albuquerque
LIST PRICE
VCG50 $28.90
• Volclay Grout can be mixed using a Jet/hopper mixer and a mud rotary recirculation system.
• Mix 2.1 lb. Volclay Grout with 1 gal. fresh water.
PACKAGING: • Volclay Grout is packaged in 50 Ib. bags, plus a 2 Ib.
initiator bag.
USAGE GUIDE • A 52 IbJbag of Volclay Grout will yield 3.5 cu. ft. of
usable grout.
HOLE DIA. IN.
4 5 6 8 8 8
10 10 10
CASING DIA. IN.
2 2 4 4 5 6 5 6 8
CU. FT. PER 100 FT.
7.9 13.8 13.00 30.00 24.00 17.00 38.00 31.00 14.00
F-13
001765
l e c n n i c a t i /ara oneer
U 22/017 3/1/88 WW-18 W. AMERICAN COLLOID COMPANY
Water/Mineral Division
SDG 100 N/T
Polymer-Frec AJPJ. Bentonite
PRODUCT INFORMATION
DESCRIPTION:
" ^
SDG 100 N/T Is an untreated 200 mesh bentonite selected for use in geotechnical and water well drilling and complies with the proposed American Petroleum Ir\stitute drilling fluid specification for untreated bentonite.
PACKAGING:
APPLICATION:
50-pound Multi-wall paper bags 50-pound
For use in fresh water or fresh water mud systems. A 50-pound bag yields 105 gallons of required drilling mud in normal conditions.
MOISTURE CONTENT: Maximum 10% as shipped
DRY PARTICLE SIZE: Minimum 70% finer than 200 mesh
O 1500 W.Shure Drive • Arlington Heights. Illinois 60004-1434 • (312)392-4600
The inlormation and data contained herein are believed to be accurale and reliable. American Colloid Company makes no warranty ot any kind and accepts no responsibility tor the results obtained through application ol this information.
001766
£ AMERICAN COLLOID COMPANY
5100 SuMield Cl. • Skokle, IL 60077 (312) 966 5720 TWX 910 223 0738 • TELEX ITT 4330321 technical data
VOLCLAY CROUT CHEMICAL ANALYSIS
GENERAL DESCRIPTION: A Bentonite bas«d product formulated for use
at a non-bridging, high solids clay grout.
FUNCTIONAL USE:
CHEMICAL COMPOSITION:
MOISTURE CONTENT:
pH:
BULK DENSITY!
SPECIFIC GRAVITY:
HANDLING PRECAUTIONi
Useful for sealing and grouting well casings, plugging abandoned wells and waterproofing earthen structures.
SiOx
J:S°^ MgO N«xO Kj,0 T t f p i TlOi. Mn,0^ P O -L.O.I.
PERCENT 56.2 13.6 1.53 5.«0 2.92 .66
3.07
.22
.05 1.22 14.8
Silica Alumina Calcium Magnesium Sodium Oxide Potassium Oxide Iron (Ferric) Ti tanium dioxide Manganese Oxide Phosphorus Pentoxide Loss on ignition
Maximum 12H as shipped
9% suspension 9 to 10.9
S9 lbs./cubic ft
2.5 g/c.c
Non toxic, avoid breathing dust
PACKAGING: SO lb. net wt. paper bag plus 2 lb. initiator bag.
001767
A
V.
AMERICAN COLLOID COMPANY
5100 Suffield Ct. • Skokle, IL 60077 (312) 966 5720 TWX 910-223-0738 • TELEX ITT 4330321 technical data
LEACHABILITY EVALUATION FOR HEAVY METALS
1. SAFE DRINKING WATER STANDARDS 2. E.P.TOX GUIDE LINES FOR HAZARDOUS WASTE 3. CEMENT LEACHABILITY RESULTS 4. VOLCLAY GROUT RESULTS
CONT
ARSENIC BARIUM CADMIUM CHROMIUM LEAD MERCURY SELENIUM SILVER
SDWAx mg/ 1
0.05 1
0.01 O.OS O.OS 0.002 0.01 0.03
E.P.TOX. mg/ 1
3 100 1 3 3
0.2 1 3
CEMENT
0.001 <.01 0.01 1 0.0S3 0.19 < .0001 < .001 0.028
VG PC
0.006 < .01
<0.001 0.043 <0.01
<0.0001 <0.001 <0.001
001768
Effective May 10.1967
Volciay Grout A Tighter-Sealing Alternative to Cement and Ready Mix Grouting Materials
Volclay Qrout Is « high-soilds, bentonite clay grout. U utilizes the proven aeallng characteristics of t>entonite clay to tchieve a low permeability seal. The product Is easily mixed and placed In the bore hoie. It sets up Into a clay plug of plastic consistency after 8 hours. Volclay Qrout prevents Inter aquifer transfer and groundwater contamina* tion trom surface water nin-off. It remains flexible and lands to satf-seal aftar movements of the wett casing or ground fomiatlon, thua providing a mora permanent seal than cement.
MalnlAios a tighter seal than cement or cement/bentonite aroota. •••••••;; 7 y - ' Z ' - 7 :
• ' • > • : - • : " • ' • • . - . • • • ' . - . . / • ' " • • » • • •
-Eaay installation • mixea readity.pumps smoothly WHt) existing drill rig equipment.
Remains pumpable and placeable for 2 hours, assuring a positive grout placement.
Won't damage PVC pipe since no heat Is generated during set-up.
Product bonds to well casing • does not shrink or crack in sub-strata ground formatk>na.
Only one-sixth the quantity ot Votolay Qrout la needed compared to cement to product an equivalent volume of grout. There's less to carry to a job site, less to mix, less to handle.
Seals ail types of boreholes and well caaing.
Provides a positive water tight t»arrler.
Can be poaltively placed ensuring uniform consistent applicatton success.
Remains flexible; will not shrink or crack below surface soil grade.
Product will provide a positive high solids seal lor Geotechnical Monitoring wells, water well casing and abandoned bore holes.
PART MO. l l
OISCOUNT SCHEDULE 30% F.O.B. Aibuquerque
LIST PRICE
VC080 l a j o
• Volclay Qrout can be mixed using a Jet/hopper mixer and a mud rotary recirculation system.
• Mix 2.1 Ib. Vok:tay Qrout with 1 gal. fresh water.
PACKAQINQ: • Volclay Qrout la packaged In 50 Ib. bags, plus a 2 Bi.
Initiator bag.
USAQE QUIDE
• A 52 IbTbag of Votolay Grout will yleM 3.5 cu. IL of usable grout.
HOLE DIA. IN.
4 5 6 8 8 8
10 10 10
CASINQ DIA. IN.
2 2 4 4 5 6 5 6 8
CU. FT. PER 100 FT.
7.9 13.8 13.00 30.00 24.00 17.00 38.00 31.00 14.00
Fia
001769
N L Barold Product Information
BENSEAL'" Sealing and Plugging Agent
BENSEAL'* Is a specially processed coarse ground, non-drilling mud grade bentonite for use in sealing and grouting well casings and earthen structures.
Recommended Uses BENSEAL** provides superior sealing qualities to:
Saai and grout plastic or steel casings. S««i anginearing t«st study holt t . Plug and abandon minerals exploration holes and
seismic shot holes. Saai conductor plpa in and around mud tanks. Saal ponds, dams and dltchas.
Major Advantages Convenient, singia sack product. BENSEAL" is
safe and easy to use. Stabia In storaga. Yialds slovtfiy for maximum sofids wtthout excessive
thkrkenlng. Pumps aasily with minimum pump pressure. Ellminatas problams causad by pramatura aat-
ting up. Forms a parmanant, flaxibia saal. BENSEAL u not
subject to permanent drying, shrinking or aacking. Raduces formation fracturing whiefi could
causa saaiing loss because BENSEAL is lighter than cement.
Doas not ganarata haat upon setting up. Pravants commingling of aqultars and contamina
tion from surface sources. Protacts casing from corrosive waters. Allows hoia raantry without mud contamination. Compatlbia with BAROID*. Density may be in-
aeased to control artesian conditions or other subsurface overpressures.
Recommended Treatment BENSEAL" forms an excellent seal when properly ap
plied. For effective sealing the maximum number of swell
ing particles is required: this is contrary to what Is desired in a drilling fluid. BENSEAL performs most effidentiy in fresh water.
Saaling Casings Use a jet or propeller mixer to prepare the BENSEAL"
slurry as thtok as the pump can handle (about 150 to 175 pounds per 100 gallons of water). Pump the sluny immediately into the annulus between the casing and the drilled hole. Fill the annulus uniformly from the bottom upwards to the surface. After the BENSEAL is In place, make sure that a "casing shoe shut-ofT Is (or has been) established between the bottom of the casing and the hole so that the seal remains In the annulus.
BENSEAL may be applied in dry form around the upp>er part of the borehole to improve the surface seal. Pour the BENSEAL slowly down the annulus and use a long pole to break up any "bridges".
Plugging and Abandoning Holaa Prepare the slurry as noted above, using a maximum
amount of BENSEAL". Pump the slurry directly into the hole through open-ended drill pipe. Pull the drill pipe from the hole at the same rate as the hole is filled. Fill the hote to the surface. Pour one or more sacks of dry BENSEAL into Ihe upper part of the hole and then place a cement surface plug. NOTE: For maximum plugging and grouting effects, high concentrations of BENSEAL (150-195 lb/100 gal) can be achieved by pretreating the mbc water with one quart of EZ-MUD anionk: polymer emulsion per 100 gallons.
Saaling Earthan Structure Work BENSEAL" into the soil, covering completely the
area which will be under water. Normal treatment is between 1 and 2 pounds per square foot depending on the condition of the soil. To treat a water filled structure, broadcast BENSEAL evenly over the entire area.
BAROID and 0UK<>E1-«< r<0W<rad b*d«MHa << r a kdiMWa. he. •WNSCAL md EZ MUD • « »*<l«mttiu c< Nl. InduiMtt. Inc.
SP-Ci iH 4/S6 M. PrftiudinU.S A.
001770
APPENDIX D
CONTRACTOR SPECIHCATIONS FOR WELL ABANDONMENT
I 001771
APPENDIX D
SPECIFICATIONS FOR THE ABANDONMENT OF GROUND WATER WELLS
SECTION 1.0 - GENERAL REQUIREMENTS
1.1 Intent of Contract Documents - It is the intent of the Contract documents to describe the requirements for the abandonment of one (1) large diameter deep water well (City of Albuquerque, San Jose-6 well) and approximately small diameter, privately owned wells in the vicinity of the San Jose-6 well.
1.2 Purpose - The purpose of the abandonment program is to preclude the existing wells from serving as conduits for the migration of contaminants, which may be present in the upper groundwater formations, to the lower groundwater aquifers.
1.3 Location - The wells are located in Albuquerque, New Mexico, and their sites are shown in Drawing # .
1.4 Description of Work - The work to he completed under this Contract shall consist of furnishing all materials, labor, equipment, fuel, tools, transportation and services for the abandonment of the wells identified herein. Where a pump is installed in a well, it shall be pulled and stored at the well site, unless otherwise specified. The method of destruction or abandonment of a well will vary based upon its method of construction. Non-gravel envelope wells (cable-tool constructed wells) will be sealed by installing cement grout in the casing as described in these specifications. Gravel envelope wells (rotary drilled wells) will be abandoned by filling the well to a selected depth, perforating the well casing opposite an impermeable clay section and then pressure grouting the upper portion of the casing as specified in these specifications.
1.5 Qualification of the Contractor - A bidder shall hold a valid New Mexico Contractor's License and shall demonstrate experience in similar work.
1.6 Termination - GCL reserves the right to terminate the work on any well at any time. In such an event, the Contractor shall be paid for work completed at that time on the basis of the prorated unit bid prices.
1.7 Notifications - The Contractor shall notify the Engineer and the appropriate local, state and federal agencies in advance of the commencement of abandonment. The Contractor shall record the commencement and completion of work for each well.
1.8 Access for Inspection - Contractor shall provide proper facilities for access and permit inspection of any part of the project site by the Engineer and the Owner.
1.9 Copies of Documents - GCL shall furnish to Cdntractor two (2) copies of the Contract documents. Additional copies will be furnished, on request, at the cost of reproduction.
1.10 Reference Points - The Engineer shall stake the location of each well to be abandoned.
001772
1.11 Documents Furnished bv the Contractor - Prior to the commencement of construction, the Contractor shall furnish to the Engineer, on 8-1/2 x 11-inch paper, the following documents for approval:
1. A construction schedule indicating locations and types of work to be accomplished by specific dates.
2. A list of supervisory personnel who will be responsible for the performance of the Contract. The list will include the phone numbers where the personnel may be reached by the Engineer or Engineer's representative, t>oth during normal work hours and outside thereof in cases of emergencies.
3. A list of the tjrpe and source of sealing and filler materials proposed for use on the project. This shall include the mix design for approval, including the supplier's name and address.
During construction, a daily status report of work performed shall be submitted by the Contractor to the Engineer on 8 1/2 by 11-inch paper.
1.12 Supervision - The Contractor shall designate one person, who will have full decision making authority, to represent the Contractor on a daily basis on location.
1.13 Construction Inspection - The Contractor, in conformance with these Specifications, will be required to contact the Engineer at specified stages of the abandonment program for the purpose of job inspection. No work shall be performed by the Contractor until such inspection has been made. A list of the required inspections will be provided by the Engineer. The contractor shall notify the Engineer at least 12 hours prior to each of the required inspection periods to assure that a representative will be available to carry out the inspection.
1.14 Well Securitv - The Contractor shall provide at all times during the duration of the Contract suitable means of protecting the well tx)re and casing assemblies from the entrance of foreign objects and shall provide for the safety of persons and animals. Safety measures for the protection of personnel shall be subject to the approval of the Engineer.
SECTION 2.0 - SEALING OF WELLS
2.1 Scope - These items shall consist of sealing and filler materials and the methods which they shall be used in the abandonment of wells.
2.2 Equipment Requirements - Grouting equipment used shall be of a type, capacity, and mechanical condition suitable for doing the work and shall be as approved. Power and equipment and the layout thereof shall meet applicable requirements of local, state, aiid federal regulations and codes. The grout plant shall be capable of supplying, mixing, stirring, and pumping grout. It shall have a minimum capacity of 15 gallons per minute of grout injected at a pressure not greater than 200 pounds per square inch (psi) and shall be maintained in optimum operating condition.
001773
2.3 Materials
2.3.1 Portland Cement - Cement shall conform to ASTM C150, Type I, II or III. Cfement shall be stored so that moisture will be excluded.
2.3.2 Water - Water shall be from a potable water source and shall be protected from contamination.
2.3.3 Sand - Sand shall conform to ASTM C33 fine aggregates.
2.3.4 Sealing Material Mix - The acceptable impervious sealing material that may be employed in the abandonment of the wells include neat cement, cement grout or concrete. The Engineer will specify the sealing material to be used in each well.
1. A neat cement mbcture shall he composed of one (1) cubic foot (one sack) of Portland cement to five (5) to seven (7) gallons (0.67 to 0.9 cubic feet) of clean water. Bentonite, to make the mix more fluid and reduce shrinkage, shall be used up to a total of five percent (5%) of the volume of cement.
2. Cement grout shall be composed of not more than two (2) cubic feet of sand and one (1) cubic foot (one sack) of portiand cement to five (5) to seven (7) gallons (0.67 to 0.9 cubic feet) of clean water. Bentonite, to make the mfac more fluid and reduce shrinkage, may be used up to a total of five percent (5%) of the volume of cement.
3. Concrete grout may be used in special situations as directed by the Engineer and shall be composed of cement grout as described above with the addition of course aggregate as directed by the Engineer.
Quick-setting cement, retardants to setting, hydrated lime, and additives to make the mbc more fluid may he used up to a total of ten percent (10%) of the volume of the cement. Any such additives shall he approved in advance by the Engineer.
2.4 Sealing Methods - The objective of the requirements described in this Section is to restore as nearly as possible, those subsurface conditions which existed before the well was constructed in order to prevent the well from serving as a conduit for inter-aquifer groundwater movement. The requirements are subdivided into two major types of wells, those having an annular space between the casing and the drilled hole and those wells which were constructed without the annular space. Both types of wells are subject to the following preliminary work prior to sealing:
1. Before abandonment, the well shall be sounded to determine whether there are obstructions that will interfere with the process of filling and sealing. The Contractor shall run a four-inch or larger bailer into the well to determine its depth or the presence of an obstruction.
2. If there are any obstructions, the Contractor shall immediately notify the Engineer. The Contractor shall then attempt to remove the obstruction by bailing or other suitable means.
001774
3. If the obstruction is determined to be in the form of hardware (rather than fill or cave material) and cannot be removed, the Contractor may be instructed by the Engineer to attempt to pass the obstruction with a smaller pipe in order to place sealing materials below the obstruction, eventually leaving the obstruction sealed in the well.
4. Upon completion of the preliminary sounding of the well, the Contractor shall notify the Engineer that the Contractor is prepared to proceed with the abandonment program.
2.5 Abandonment Method - Non Gravel Envelope Wells - The principal objective of the well abandonment is to protect the aquifers from inter-aquifer flow. The sealing procedure for non gravel envelope wells will be to fill the entire well from the bottom upward with impervious sealing materials. No filler material will he used in the abandonment. The Contractor shall install the impervious sealing materials in a manner which will provide a continuous seal from the surface to the total depth of welL The following procedures will be followed in the abandonment of all wells:
1. Remove any existing well foundation around the casing. Excavate around the exposed casing a minimum of twelve (12) inches in diameter to a depth of sbc (6) feet.
2. Cut off the casing at sfac (6) feet beneath the surface in order to allow a cement cap to ultimately l>e poured over the filled casing. It is recommended that the Contractor leave the casing in place, by cuttiiig all but 1/4-inch of its circumference until completion of the installation of the impervious sealing material in order to maintain hole stability. The entire well casing may be removed by pulling out of the hole if this is feasible.
3. Install a string of tremie pipe to within twenty (20) feet of the bottom of the well.
4. Install, by pumping through the tremie pipe, the impervious sealing material. Remove the tremie pipe as the cementing operation continues. The Contractor shall insure that the tremie pipe remains submerged beneath the sealing material throughout the filling procedure.
5. Bring the sealing material up to the cut area of the well casing. Remove (if not previously done) the top sfac (6) feet of casing from the bore hole. Pour a cap over the top of the exposed casing to complete the installation of the sealing material and provide a minimum thickness of sfac (6) inches over the top of the casing.
6. The Contractor shall allow the cement to set before filling the excavated hole. If settlement takes place at the surface, the procedure of capping shall be repeated until a permanent seal and cap have been established. TTie hole shall then be backfilled with filler material.
7. The filler material shall be tamped in 12 to 14 intervals to insure that no settlement of the fill material takes place.
001775
Sealing of Wells Section 16
2.6 Abandonment Method - Gravel envelope Wells - The principal objective of the well abandonment is to protect the aquifers from inter-aquifer flow. The sealing procedure for gravel envelope wells will be to fill the entire well with sealing materials and additionally to seal the annulus between the casing and the well bore opposite an impervious aquitard such as a clay layer. The Engineer will select the legation of the area to be sealed in the annulus of the well. Each gravel envelope well will be identified for the Contractor by the Engineer. The Contractor shall install the impervious sealing materials in the manner defined herein and in the lcx:ations designated by the Engineer. The following procedures shall be used in the abandonment of all gravel envelope wells:
1. The well bore shall be filled with the grout material designated by the Engineer to a depth ten (10) to fifteen (15) feet below the area selected to seal the annulus of the well. The material shall lie placed by tremie pipe installed to within 20 feet of the bottom of the well and withdrawn as the sealing material is placed.
2. A bailer or tremie pipe shall be run into the well in order to confirm the depth of the sealing material. The top of the plug shall be at least five (5) feet below the bottom of the section of the well casing to be exposed to the annulus by perforations.
3. The Contractor shall install at the well surface a temporary surface seal that will permit the Contractor to fill the casing with water and to pressure test the integrity of the casing. The Contractor shall, after filling the casing, pressure up the casing assembly to a pressure below the maximum allowable pressure that will not cause hydrofracturing to occur. This pressure could he as much as 600 psi. Care should be exercised to evacuate all air from the system during the testing pericxi. The well shall be observed for a pericxi of 30 minutes and the amount of water (if any) needed to maintain the static injection pressure noted.
4. The well casing shall be perforated with a mills-knife or other approved perforating device opposite the zones to be sealed as selected by the Engineer. Perforations shall consist of a minimum of two rows of perforations, twenty-four (24) inches apart having four (4) slots per row. The length of the slots are not intended to exceed four inches. The maximum blade width on the perforator shall t>e 3/16 inches. The perforator shall he run on solid tools in order to insure its proper placement and position in the well. The Contractor shall notify the Engineer 24 hours in advance of the perforating in order that an inspector be present at the time of perforating.
5. The Contractor shall reinstall the surface seal and fill the casing with water. The Contractor shall conduct an injection test at 25 psi to determine the effectiveness of the perforating and the ability of the formation to receive the injection of cement. The amount of fluid injected in 15 minutes shall be recorded. If the Contractor is unable to fill the casing or if the injection rate exceeds 25 gallons per minute, the injection testing shall be terminated. If injection of fluid does not occur, the Engineer will instruct the Contractor to re-perforate the well or to abandon the well in its present condition.
001776
6. The Contractor, on instructions from the Engineer to prcKeed, shall install tremie pipe in the well and fill the well with sealing material by pumping. The tremie pipe shall be removed from the well in 20-foot to 30-fcx)t sections, maintaining the bottom of the tremie below the level of sealing material.
7. When the sealing material has reached the surface, the temporary surface seal shall be reestablished and the pumping of grout continued until an injection pressure of 25 psi is established. Pumping at this pressure shall continue for a period of 30 minutes or until a volume of two (2) well casing volumes has been placed in the welL
8. The temporary surface seal shall be removed following the pressure injection of sealing material. The well casing shall be cut and removed to a depth at least, one foot below the ground surface. Filler material shall be tamped around the sealed well in order to restore the existing ground surface to the surrounding grade.
Payment shall be considered as full compensation for furnishing all labor, materials, tools and equipment necessary and incidental to the completion of the work. Payment for grout shall be on a cubic yard basis.
2.7 Grout Installation - The concrete grout shall be introduced at the true bottom of the well and placed progressively upward to the top of the casing. The grout shall be installed by a positive placement methcxi such as pumping or forced injection by air pressure, and a grout pipe shall be used in such a way as to prevent free fall, separation or dilution of the grout. Dumping grout material from the top shall not be permitted.
The grout pipe shall extend from the surface to the bottom of the zone to be grouted. The grout pipe shall have a minimum inside diameter of one (1) inch. Grout shall be placed, from bottom to top, in one continuous operation with the tremie pipe placement beginning within 20 feet of the bottom. The grout pipe may be slowly raised as the grout is placed but the discharge end of the grout pipe must be submerged in the emplaced grout at all times until grouting is completed. Sufficient curing time shall be allowed before performing any surface alterations.
2.8 Cold Weather Grouting - When the ambient temperature is below 35 degrees F, the temperature of cement, water, and aggregate shall be such that the temperature of mfaced grout immediately before placement shall not be lower than 60 degrees F.
2.8 Hot Weather Grouting - The temperature of the grout when placed in the wells shall not exceed 90^. At an air temperature of 90*'F or above, the grout shall be dept as c(X)l as possible during mfadng and placing.
SECTION 3.0 - SITE CLEAN-UP
3.1 Scope - This item shall consist of maintaining the well site in a clean and professional manner during abandonment operations and restoring the site to pre-abandonment conditions after work is completed.
001777
T—i
3.2 Clean-Up Method - The Contractor shall keep the premises free from accumulations bf waste materials, rubbish, and other debris resulting from the work, and at completion of the work, shall remove all waste materials, rubbish, and debris from and about the well site as well as all tools, construction equipment, fuel tanks, machinery, and surplus materials. The Contractor shall leave the site clean and ready for use by the owner. The Contractor shall restore to their original condition all temporary work areas. The Contractor is responsible for any damages to properties adjacent to the wells caused by abandonment activities associated with the work described herein.
SECTION 4.0 - RECORDS
4.1 Scope - This item consists of preparing final records of the well abandonment.
4.2 Well Abandonment Records - Prior to final acceptance of the well abaridonment, the Contractor shall prepare and deliver to the Engineer an Abandoned Well Report for each well on a form provided by the Engineer. This report shall include all measurements and observations by the Contractor and shall show calculations of well bore volumes and quantities of grout installed.
001778
'm.—^
• • # - . . .
CLUS-6
^ • • ^ ^ < -
y -s
fZ
%
r
.mS-
4 *
. 1 I ' ^•-^ i . ^ - ^ ^
' ' 3 . y -
• • • « , .
' • ' .W-Hf i ,
1 .
' h I - K •
9.
<g> CLL^ .1
m
Lii
CAI
cr UJ
<§) CLUS-2 < *
CLU^S
^ S J 4 CLUS-4
CLUS-3
i ^ s » « «
NOTE BASE MAP MODIFIED FROM USGS 7 1 2 MINUTE QUADRANGL E ALBUQUERQUE DATED 1960
PHOTO REVISED ON 1967 ANO 1972
ALL. BASE MAP SYMBOLS ARE STANDARD USGS SYMBOLS
FOR PHVSICAL AND CULTURAL FEATURES
Vf^Vj ' i . • A ' .»••. « ' *
" n73jr. * . ^ 3 ^ i> * '
n ••••
LEGEND
< ^ PROPOSED 3-WELL CLUSTER
• PROPOSED 2-WELL CLUSTER
SAN JOSE WELL NO. 6
500 500
250 250
SCALE IN FEET
CONTOUR INTERVAL = 10 PLATE 1
PROPOSED NEW MONITOR WELL LOCATIONS
CLIENT G E N E R A L E L E C T R I C
DATE 3 14 9 0
HYDROGEOLOGIST B. G A I T H E R
CHECKED BY A. G U T I E R R E Z
DWG NO
SJ-6-0001
SAN JOSE-6 REMEDIAL DESIGN
001779
LEGEND
m
SHALLOW ZONE MONITOR WELL
( ^ INDICATES SCREENED INTERVAL SPANS
SHALLOW AND INTERMEDIATE ZONES)
PROPOSED 3-WELL CLUSTER
PROPOSED 2-WELL CLUSTER
* SAN .JOSe WELL NO b
CLUS-6
QMW i n SMW-13 SMW-10^ A ^ S M W . 9
^ A - ^ SMW-14 SW-7 ^ A SV-15
® CLUS-1
SW-1
IT
'J) QC UJ
SMW-12A^SW-6
A SMW-18
S-5 A
<g> CLUS-2
CLUS-5
KEY TO MONITOR WELL DESIGNATIONS (INSTALLATION DATES IN PARENTHESES)
CV - CHEVRON WELLS (CV1-6 1982, CV-7 1983, CV9-10 N/A, CV11-16 1988)
S - USEPA PHASE 2 WELLS (1985-87)
SV - NMEID WELLS (1981-82)
SW - GENERAL ELECTRIC WELLS (1985)
TX - TEXACO WELLS (1985)
SMW - GENERALELECTRIC WELLS (1986-87)
NOTES
MONITOR WELL LOCATIONS WERE IDENTIFIED FROM SOURCES SHOWN BELOW. ACTUAL WELL LOCATIONS WILL BE VERIFIED AS REQUIRED DURING REMEDIAL ACTIVITIES.
S-2 A ASV-9 .C-1
CV-2
SMW-15
sw-s'
S-6A
TX-5A ATX-2
TX-3A A SMW-t6
S W - 4 A A S V - 8 ^
^ f>A ^ SMW-17/ ^SMW-19
ACV-8
CV-4^
^ ^ - 4 CV-3
A TX-4
ACV-5
A ^ SJ-6
TX-1
A S-4
A CV-1
ACV-9
CLUS-4
ACV-10
ACV-6
ACV-11 *
CLUS-3
SHALLOW ZONE = 0-30' BELOW GRADE INTERMEDIATE ZONE = >30-100' BELOW GRADE DEEP ZONE = >100' BELOW GRADE
SOURCE OF WELL LOCATION DATA
GERAGHTY & MILLER, JANUARY 1 9 8 9 . FIGURE 3 MCQUILLAN, et. al., DECEMBER 1982, FINAL DRAFT. FIGURE 6 GERAGHTY & MILLER, JANUARY 1989, FIGURE 2 CHM2 HILL, MAY 1988, FIGURE C - 1 , APPENDIX D ENGINEERING SCIENCE, NOVEMBER 1983, FIGURE 3.20, p 3-41 HARDING LAWSON ASSOC, MARCH 28, 1984, PLATE 3 MAP PROVIDED BY K SUMMERS, CITY OF ALBUQUEROUE.
HASt 's^f^^ w '1 )it- <i-' '<'
•\ i i • H f V I S K ; VN • Hf
Ai . H f l S t M A I ' . V M H ' il
t f ) H :>HVSI ( ,A t A N ( , • II
• v
A M I
A M f
iMA ,
' . M
* . A N I 'AMI
^ A ' i R t ' -
H' ! . l :! I.l . .1 • t 1 " < M
\
500 500
2 SO 250
SCALE IN FEET
CONTOUR INTERVAL 10
K*-:--:
PROPOSED NEW MONITOR WELL LOCATIONS
AND LOCATION OF SHALLOW
ZONE MONITOR WELLS
i * ^ GENERAL FlECTRiC
I' 'i- 3 ' 4 9 0
.voHoGKM ,M.is B GAITHER
T
PLATE 2
A GUTIERREZ
SJ-6-0002
SAN JOSE-6 REMEDIAL DESIGN
001780
LEGEND
' H^SWSJ
A INTERMEDIATE ZONE MONITOR WELL
(•^ INDICATES SCREENED INTERVAL
SPANS OTHER ZONE(S) )
( g > PROPOSED 3-WELL CLUSTER
PROPOSED 2-WELL CLUSTER
• sAN K)S1- WELL NO b
<g> CLUS-1
#
CLUS-6
DWA-1 A
IMW-6 A
AHL-4
ADWB-3
IT/ (Nl
QC UJ
( ^ CLUS-2
Al-7 r Al-5
DWB-2
CLUS-5
CVI-1 A SJ-6
Ai-2
CLUS-4
I-9A ^ t ^ ^ ' - 2 ^ A D - 3
CLUS-3
KEY TO MONITOR WELL DESIGNATIONS (INSTALLATION DATES IN PARENTHESES)
CVl - CHEVRON WELLS (1983)
D - USEPA PHASE 2 WELLS (1985-87)
DWA - GENERAL ELECTRIC WELLS (1985)
DWB - GENERAL ELECTRIC WELLS (1985)
GM - GERAGHTY & MILLER WELLS (1985, 87, 88)
HL - USEPA PHASE 1 WELLS (1984-85)
I - USEPA PHASE 2 WELLS (1985-87)
IMW - GENERALELECTRIC WELLS (1986-87)
S - USEPA PHASE 2 WELLS (1985-87)
SV - NMEID WELLS (1981-82)
CV - CHEVRON WELLS (CVI-6 1982, CV-7 1983, CV9-10 N/A, CV11-16 1988)
NOTES
MONITOR WELL LOCATIONS WERE IDENTIFIED FROM SOURCES SHOWN BELOW. ACTUAL WELL LOCATIONS WILL BE VERIFIED AS REQUIRED DURING REMEDIAL ACTIVITIES.
SHALLOW ZONE = 0-30' BELOW GRADE INTERMEDIATE ZONE = >30-100' BELOW GRADE DEEP ZONE = >100' BELOW GRADE
DWB-1 A A AlMW-5
'W«W-4 A ^ ^ . 2 I-8A AHL-5
Cfl-4A CV.12A A C V - 1 3
I - 4 J A C V - 1 6 ^
AGM-24S * CV-14RA GM.17^
I-6A SV-5 AS-7 —^
^SV-6 fl-1!
A G M - 2 0
A S V - 6 M.
A G M - 1 9 * A S V - 1 0 ^
SOURCE OF WELL LOCATION DATA
GERAGHTY & MILLER. JANUARY 1989 . FIGURE 3 M C Q U I L L A N , et. ai., D E C E M B E R 1982, F INAL D R A F T , FIGURE 6
GERAGHTY & MILLER. JANUARY 1989. FIGURE 2 CHM2 HILL, MAY 1988, FIGURE C-1, APPENDIX D ENGINEERING SCIENCE, NOVEMBER 1983, FIGURE 3.20, p 3-41 HARDING LAWSON ASSOC, MARCH 28, 1984, PLATE 3 MAP PROVIDED BY K SUMMERS, CITY OF ALBUOUERQUE.
H d ' t ^ t . l M l .|)l» 't ' ' ' M ">
. M ' M^ / I ' . f f ' . I f -INC
A, H A S t MAS w M H 'I .'<Hf
H i H P M V S K A l AM( t ' '•-'A.
M ( N , If K, ;: ;( - A t
- ' A N I I AMI
- e A ' JHES
500 2 50
0 500
250
SCALE IN FEET
CONTOUR INTERVAL 10
PROPOSED NEW MONITOR WELL LOCATIONS
AND LOCATION QF INTERMEDIATE ZONE
MONITOR WELLS IN THE VICINITY QF SJ-6
* ' GENERAL ELECTRIC
I'y 3 1 4 9 0
! MvoHoGfo, >.:..'.• B G A I T H E R (-
• i t l >v "^t H '
^ ' • ^ . ' ' • . ' y . / / . . i . . J .
A GUTIERREZ
SJ-6-0003
PLATE 3 SAN JOSE-6 REMEDIAL DESIGN
001781
LEGEND
DEEP ZONE MONITOR WELL ( ^ INDICATES SCREENED INTERVAL SPANS OTHER ZONE(S) )
PROPOSED 3-WELL CLUSTER
PROPOSED 2-WELL CLUSTER
• SAN )OSi- WELL NO 6
KEY TO MONITOR WELL DESIGNATIONS (INSTALLATION DATES IN PARENTHESES)
A - EDMUND STREET
PROPERTY WELLS (1965, 1973)
A DMW-3 <1> CLUS-1
CLUS-6 A DMW-4
CLUS-2
A D-4 CLUS-5
HL-2.
* S J - 6 CVD-1 A
A D-1
CLUS-4
A 1-3 D-2 A
CLUS-3
UU
< ;/) OC UJ
BC - BAKER COMMODITY WELL (1984)
CVD - CHEVRON WELLS (1983)
D - USEPA PHASE 2 WELLS (1985-87)
DMW - GENERALELECTRIC WELLS (1986-87)
SV - NMEID WELLS (1981-82)
GM - GERAGHTY AND MILLER WELLS (1985, 1987, 1988)
HL - USEPA PHASE 1 WELLS (1984-85)
I - USEPA PHASE 2 WELLS (1985-87)
NOTES
MONITOR WELL LOCATIONS WERE IDENTIFIED FROM SOURCES SHOWN BELOW, ACTUAL WELL LOCATIONS WILL BE VERIFIED AS REQUIRED DURING REMEDIAL ACTIVITIES.
SHALLOW ZONE = 0-30' BELOW GRADE INTERMEDIATE ZONE = >30-100' BELOW GRADE DEEP ZONE = >100' BELOW GRADE
D W M - l A A DWM-21
BC-2
AGM-23 GM-10 *
GM-24DA A GM-22
GM-1 A ^ GM-17DA A . " "T ^ .1-1
w/» »^ AGM-2yQM*13 A1AGM-11S
QM-16 i ¥ GM-6 A ^
GM-5A ^"^"^ A-2 A A
GM-3
GM-4 HL SV
^ G M - 8 / v ^ ^
-i// °'
AGM-2 t G M - 9 0 * GM-12R
GM-9S
^ . . . - e GM-15S GM-14S A A A Gl\l-16f> ^ G M - 1 4 D
GM-11D
SOURCE OF WELL LOCATION DATA
GERAGHTY & MILLER. JANUARY 1989, FIGURE 3 MCQUILLAN, et. aL. DECEMBER 1982, FINAL DRAFT, FIGURE 6 GERAGHTY & MILLER, JANUARY 1989, FIGURE 2 CHM2 HILL, MAY 1988, FIGURE C-1 , APPENDIX D ENGINEERING SCIENCE, NOVEMBER 1983, FIGURE 3,20, p 3-41 HARDING LAWSON A S S O C , MARCH 28, 1984, PLATE 3 MAP PROVIDED BY K SUMMERS, CITY OF ALBUQUERQUE.
' t hlK--.l M i . l M' i ut i| . • ' . iW
. 'M , 1, u t / S t I K ' . . 4N(
A, , HASI- M A ( -V MH^ ^ - ."l>-i^
. ( I f . P H » S | l A, aN( n • I M A ,
MIN ' . I - •.^ l < . ,^ , A :
' A N H A H !
eAT JRFS
' M e t '
500 0 500
250 250
SCALE IN FEET
CONTOUR INTERVAL 10
PROPOSED NEW MONITOR WELL LOCATIONS AND LOCATION OF DEEP ZONE
MONITOR WELLS IN THE VICINITY OF SJ-6
"t-^' GENERAL ELECTRIC
Al t 3 14 9 0
.vi,ROGf,M ,..,s B G A I T H E R
Hf. KU HV A G U T I E R R E Z
SJ-6-0004
PLATE 4 SAN JOSE 6 REMEDIAL DESIGN
001782
T ^ - ^ T : " ' ~ ^ T T ' - 7 ^ T 7 ' . . . T—r
: • : - . - . ' . • ' • - . '
• .• .•y\- : i^: :£i : :- :y\
y'li^-ZzZ-Z;:
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77zrz
'•yy-M •.'Z'Z-y^
CLUS-6
RG34173
i^pli A»i*.-;>.«^^
A RG3583
ARG2240
. • - w i ' • • ' • • ' . ' • • • ' . ' . ' • • * « < • • . • • . • • • • •
• . < i ! . - ' - : • • : : • . • • Mft:-:-:-::'-;::
:M73^l
«F:'f-T^*.T^^?^^V-'-•-^••^•VV•••;•:•V'.•-/'.^.••••^'-'••'•.'••
••.'-;'.•- v.V-.'-\v.>;. •.'::'; .^^•;^• ' . • ; . ' • ; •^!• :• .•v^•^!v^^^
V . * • . '•*. ' .*. '• '• *• * V - * • ' • * . * * . ' • ' . - ' . - V . ^ i . ' I - - • ' . ' . ' l l ' l ' l • -•
:?!•»,
• • • • 3 : - - . : - - - ^ ' y ^ -
3y::3:^'3-Z-::^\
W'^^i^^^^^^^^
' • ' • ' • • ' • • ^ • ' l '
* : : ' • ' : **"•'.'".'•'•"•*.'**v*.'^» I* ' • - : • 3
• i \ « ' . ' . ' ; ' . •-•.-..•
. • ^*.- . - i r - • , r • • • - . l l i i , '
QC OJ
CLUS-2
CLUS-5
* S J - 6 CLUS-4
LEGEND
RG4829 INDUSTRIAL/RESIDENTIAL WELL
•
PROPOSED 3-WELL CLUSTER
PROPOSED 2-WELL CLUSTER
^AN X'JSE WELL NCi b
RESIDENTIAL AREAS
KEY TO MONITOR WELL DESIGNATIONS
RG4829 - STATE ENGINEER DESIGNATION
NOTES
MONITOR WELL LOCATIONS WERE IDENTIFIED FROM SOURCES SHOWN BELOW. ACTUAL WELL LOCATIONS WILL BE VERIFIED AS REQUIRED DURING REMEDIAL ACTIVITIES.
SHALLOW ZONE = 0-30' BELOW GRADE INTERMEDIATE ZONE = >30-100' BELOW GRADE DEEP ZONE = >100' BELOW GRADE
SOURCE OF WELL LOCATION DATA
GERAGHTY & MILLER. JANUARY 1989, FIGURE 3 MCQUILLAN, et. ai.. D E C E M B E R i982, F INAL D R A F T , FIGURE e
GERAGHTY & MILLER, JANUARY 1989, FIGURE 2 CHM2 HILL, MAY 1988, FIGURE C-1, APPENDIX D ENGINEERING SCIENCE, NOVEMBER 1983, FIGURE 3.20, p 3-41 HARDING LAWSON ASSOC, MARCH 28, 1984, PLATE 3 MAP PROVIDED BY K. SUMMERS, CITY OF ALBUQUERQUE.
CLUS-3
-T*^--'^
^ RG4891 RG4891 A ORIGINAL
REPLACEMENT (7/19/65) (10/10/80)
J •• ' f H A ' - t M A I M l -Mil 't
• ' IV T Mf ,,/isf ! • '.
A . H A S ^ M A ^ - " M H
., A«
.^ A 'Jt
., . :. .11
. MIN. ' •
' ^ ' . . ' ANI J A H I S- .
; . . L i ' l . .
- - , ' V i H
. N 11 . 1 I t I " J i( .A '
i O H P H V S I ! A I ANI il ' i H A >• t A t • JHt-!r-
500 0 500
2 5 0 2 5 0
SCALE IN FEET
CONTOUR INTERVAL 10
PROPOSED NEW MONITOR WELL LOCATIONS
AND LOCATION OF INDUSTRIAL & RESIDENTIAL
WELLS IN THE VICINITY OF SJ-6
*'- GENERAL El ECTRIC
' "H 3 M 9 0
' V M R l K i t (Ji . " ,1
. < » - ! " I - I H ^
r / I i i i i t / i . t ^ t /
B GAITHER
A GUTIERREZ
SJ-6-0005
PLATE 5 SAN JOSE 6 REMEDIAL DESIGN
001783
LEGEND
ABANDONED MUNICIPAL SUPPLY WELL
ABANDONED INDUSTRIAL OR DOMESTIC WELL
* SAN JOSE WELL NO 6
A SJ-2
WLI
• HSl
NPLGE
CM
cn QC UJ
A SJ-3
MEL
A SJ-9
B-2 I B-1
C-V ^ S J - 6
CA-28
KEY TO MONITOR WELL DESIGNATIONS (INSTALLATION DATES IN PARENTHESES)
A - EDMUND STREET PROPERTY WELLS (1965)
B - GENERAL ELECTRIC WELLS (1953-56)
BC - BAKER COMMODITY WELLS (1952)
CA - CHEVRON WELLS (1949)
HS - GENERAL ELECTRIC WELLS (N/A)
MEL - WHITFIELD WELLS (1957)
NPLGE - NORTH PARKING LOT WELL,
GENERAL ELECTRIC (N/A)
SJ - CITY OF ALBUQUERQUE WELLS (1949, 1963)
WL - HARDING LAWSON ASSOC, WELLS (1962)
NOTES C-3
.C-2
WELL LOCATIONS WERE IDENTIFIED FROM SOURCES SHOWN BELOW. ACTUAL WELL LOCATIONS WILL BE VERIFIED AS REQUIRED DURING REMEDIAL ACTIVITIES.
SHALLOW ZONE = 0-30' BELOW GRADE INTERMEDIATE ZONE = >30'-100' BELOW GRADE DEEP ZONE = >100 BELOW GRADE
CA-29
A-1
BC-1
SOURCE OF WELL LOCATION DATA
GERAGHTY & MILLER. JANUARY 1989 FIGURE 3 M C Q U I L L A N , et. ai., D E C E M B E R i 9 8 2 . F I N A L D R A F T , F I G U R E 6
GERAGHTY & MILLER, JANUARY 1989, FIGURE 2 CHM2 HILL, MAY 1988, FIGURE C-1 , APPENDIX D ENGINEERING SCIENCE, NOVEMBER 1983, FIGURE 3.20, p 3-41 HARDING LAWSON ASSOC, MARCH 28, 1984, PLATE 3 MAP PROVIDED BY K SUMMERS CITY OF ALBUQUERQUE
N O f t BASS M A P MOr . i lH t i . t l . .r^ . ' . ' , • - .
. J H i l ' R F V I S H " f ) t , - ' . r ANI - M - .
A . l RASe M A P ' ^ V M H i i i AP I - - ' A N D A H r . i ' ^ i , ' - . ^ v M H i J I
t O H P H Y S I C A L ANC) 1 ) 1 ' JRAi - t A I ' J R E S
MINI ' S j : . { . { ) I U : N ' , y A, H H l j i iPMiJ i Jl ; j A I ( ; , lA f iH
500 0
2 50
500
250
SCALE IN FEET
CONTOUR INTERVAL 10 PLATE 6
LOCATION QF ABANDONED WELLS IN THE VICINITY QF SJ-6
'trN- G E N E R A L ELECTRIC
i'Ait 3 14 9 0
<vnH()GhOi .)(,is! B G A I T H E R
HtuKM- HV A G U T I E R R E Z
SJ-6-0006
SAN J0SE6 REMEDIAL DESIGN
001784
# LEGEND
INTERMEDIATE ZONE MONITORWELL ( ^ INDICATES SCREENED INTERVAL SPANS OTHER ZONE(S) )
PROPOSED WELL CLUSTER
• SAN JOSE WELL NO. 6
DWA-1 A
IMW-6 A
A HL-4
A OWB-3
IT CNi
UJ
LU
Z
GEM-4,
KEY TO MONITOR WELL DESIGNATIONS
c v - CHEVRON WELLS
CVI - CHEVRON WELLS
DWA - GENERAL ELECTRIC WELLS
DWB - GENERAL ELECTRIC WELLS
GM - GERAGHTY AND MILLER WELLS
GEM - GENERAL ELECTRIC (PROPOSED)
HL - USEPA PHASE 1 WELLS
I - USEPA PHASE 2 WELLS
A 1-7
1-5.
DWB-2 Al-2
" ^
.GEM-2
CVI-1 A SJ-6
GEM-1 • HI--3 CVI-2 A
1-9 A A
^ D - 3 " ^ ^ " ^ - ^
NOTES
MONITOR WELL LOCATIONS WERE IDENTIFIED FROM SOURCES SHOWN BELOW.
ACTUAL WELL LOCATIONS WILL BE VERIFIED AS REQUIRED DURING
REMEDIAL ACTIVITIES.
SHALLOW ZONE = 0-30' BELOW GRADE INTERMEDIATE ZONE = >30'-100' BELOW GRADE DEEP ZONE = > IOC BELOW GRADE
DWB-1 A A IMW-4
A IMW-$
ADWA-2
CV-12
1-8 GEM-5
I A HL-5
1-6.
ACVI-4
^ C V - 1 3
| . 4 i ^ C V - 1 6
CV-14RA
G M - 1 7 ^ A
GM-24S
S-7
GM-8 ^ t GM-19
A GM-20
^ SV-10
SOURCES OF WELL LOCATION DATA
GERAGHTY & MILLER, JANUARY 1989 . FIGURE 3 M C Q U I L L A N , et, aL, D E C E M B E R i 9 8 2 , F I N A L D R A F T , F I G U R E 6
GERAGHTY & MILLER. JANUARY 1989, FIGURE 2
CHM2 HILL, MAY 1988, FIGURE C-1 , APPENDIX D
ENGINEERING SCIENCE, NOVEMBER 1983, FIGURE 3.20, p 3-41
HARDING LAWSON A S S O C , MARCH 28, 1984, PLATE 3
MAP PROVIDED BY K. SUMMERS, CITY OF ALBUQUERQUE.
NOTE: BASE MAP MODIFIED FROM USGS 7 1 2 MINUTE QUADRANGLE ALBUQUERQUE DATED 1960
PHOTOREVISED ON 1967 AND 1972
ALL BASE MAP SYMBOLS AHE STANDARD USGS SYMBOLS
FOR PHYSICAL AND CULTURAL FEATURES
500 500
SCALE IN FEET
CONTOUR INTERVAL = 10'
PROPOSED LOCATION QF WELL CLUSTERS AND
LOCATION OF INTERMEDIATE ZONE MONITOR WELLS
PLATE 10
CLIENT GENERAL ELECTRIC
DATE 3 14 90
PREPARED BY R. HICKS
CHECKED BY A. GUTIERREZ
DWG. NO
P83-00010
PLANT 83-WORK PLAN
001785