NCD981927502_19990416_Geigy Chemical Corporation_FRBCERCLA RA_Final Downgradient Remedial Action Construction Report-OCR

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FINAL
RECEIVED
APR 20 1999
SUPERFUND SECTION
DOWNGRADIENT GROUNDWATER
REMEDIAL ACTION CONSTRUCTION
REPORT
Prepared for:
Geigy Chemical Corporation Site
Aberdeen, North Carolina
Prepared by:
Earth tech
(Formerly Rust Environment & Infrastructure)
15 Brendan Way
Greenville, South Carolina 29615
April 19, 1999
Geigy Chemical Corporation Site
Aberdeen, North Carolina
Committee Correspondence
April 16, 1999
Ms. Giezelle Bennett
Remedial Project Manager
USEPA Region IV, North Superfund Remedial Branch
61 Forsyth Street, S.W.
Atlanta, GA 30303-3104
RE: Response to EPA and NCDEHNR Comments
Downgradient Groundwater Remedial Action Report
Geigy Chemical Corporation Site
Aberdeen, North Carolina
Dear Giezelle:
RECEIVED
APR 2 0 1999
SUPERFUND SECTION
VIA FEDERAL EXPRESS
On behalf of Olin Corporation, Novartis Crop Protection, and Kaiser Aluminum & Chemical
Corporation (the Companies), please find enclosed two (2) copies of the Companies responses to
the Agencies March 15, I 999 comments on the Downgradient Groundwater Remedial Action
Report, and the revised (Final) report as requested in your letter. Copies of the comment
response package and revised report will be sent directly to Mr. Randy McElveen of NCDENR
and Mr. Tim Eggert of CDM to facilitate distribution.
If you have any questions regarding the enclosed materials, please contact me at [phone].
Regards,
Garland Hilliard
Project Coordinator
/Enclosure
c: R. McElveen (NCDENR)
T. Eggert (COM)
H. Moats (Novartis)
H. Grubbs, Esq. (WCS&R)
B. Vinzant (Kaiser)
M. Sheehan (Earth Tech)
RECEIVED
APR 20 1999
SUPERFUND SECTION
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FINAL DOWNGRADIENT GROUNDWATER
REMEDIAL ACTION CONSTRUCTION REPORT
GEIGY CHEMICAL CORPORATION SITE
ABERDEEN, NORTH CAROLINA
APRIL 1999
PREPARED BY:
EARTH TECH, INC.
(Formerly Rust Environment & Infrastructure)
PROJECT NO. 32240.10.90
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CERTIFICATION OF CONSTRUCTION COMPLETION
Olin Corporation, Novartis Crop Protection, and Kaiser Aluminum & Chemical
Corporation (the Companies) retained Earth Tech (formerly Rust Environment &
Infrastructure) to construct seven groundwater quality monitoring wells and install
dedicated sampling pumps in monitoring wells scheduled to be periodically sampled as a
component of the work described in the Final Downgradient Groundwater Remedial
Action Work Plan (Rust, 1997). These activities, which represent the construction
component of the downgradient area remedy, were observed and documented by Earth
Tech personnel.
Based on our professional judgement and information obtained through on site
observation of well construction and sampling pump installation activities, review of well
construction records and soil boring logs, and as-built survey coordinates of the seven
groundwater quality monitoring wells, the construction element of the down gradient area
remedy is hereby certified to have been completed in substantial conformance with the
requirements of the Final Downgradient Groundwater Remedial Action Work Plan.
Accordingly, the monitoring wells included in the downgradient area remedy are judged
to be functional monitoring points that are suitable for providing groundwater quality
data per the sampling program described in the Final Downgradient Groundwater
Remedial Action Work Plan.
Ai£t4. ~ c.J-1~-qc,
Michael A. Sheehan
Project Manager
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Final Downgradient Groundwater
Remedial Action Construction Report
Geigy Chemical Corporation Site
TABLE OF CONTENTS
Page
1.0 INTRODUCTION ................................................................................................... I
2.0 MONITORING WELL INSTALLATION .......................................................... I
2. I Upper Black Creek Aquifer ........................................................................ 2
2.2 Lower Black Creek Aquifer. ... , ................................................................... 2
2.3 Methods and Construction .......................................................................... 3
3.0 DEDICATED SAMPLING PUMP INSTALLATION ........................................ 5
Figure I
Figure 2
Figure 3
Table I
LIST OF FIGURES
Downgradient Remedial Action Proposed Monitoring Well and Sampling
Pump Locations
Downgradient Monitoring Wells, Upper Black Creek Aquifer
Downgradient Monitoring Wells, Lower Black Creek Aquifer
LIST OF TABLES
Monitoring Well Survey Coordinates
N:\work\concept\202127\Report.doc I April /999
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1.0 INTRODUCTION
Final Downgrad/en/ Groundwater
Remedial Action Construction Report
Geigy Chemical Corporation Site
The Geigy Chemical Corporation Site ("the Site") is an inactive former pesticides
blending and distribution facility located one-half mile east of Aberdeen on State
Highway 211 in Moore County, North Carolina. Work related to the Site is being
performed under a Consent Decree by Olin Corporation, Novartis Crop Protection, and
Kaiser Aluminum & Chemical Corporation ("the Companies"). As part of this work, the
Companies conducted environmental investigations at the Site in 1996 and determined
that groundwater in portions of the Upper and Lower Black Creek aquifers, which are
hydraulically downgradient of the Site, contains pesticide concentrations above Federal
and/or State standards. In response to this finding, the Companies developed a remedial
action work plan (RA WP) for the downgradient area which was approved by the
Agencies on November 7, 1997. The remedy presented in the RA WP was incorporated
as part of the Site Record of Decision through an Explanation of Significant Difference
that was signed by EPA Region IV on January 23, 1998. Components of the approved
remedy include: (I) natural hydraulic containment and attenuation of pesticides in
groundwater, (2) groundwater monitoring, (3) surface water and baseline stream sediment
monitoring, (4) groundwater extraction and treatment at the facility property, (5) water
supply protection, and (6) periodic remedy reviews. Groundwater monitoring of the
downgradient area required the installation of seven new monitoring wells and the
installation of dedicated sampling pumps in downgradient wells to be monitored under
the remedy as shown in Figure 1. This Downgradient Groundwater Remedial Action
Construction Report documents the construction activities associated with the installation
of the new wells and sampling pumps, and is submitted as an addendum to the facility
property construction report.
2.0 MONITORING WELL INST ALLA TI ON
As required by the RA WP, seven new monitoring wells (MW-34D, MW-35D, MW-36L,
MW-37L, MW-38L, MW-39L, and MW-40L) were constructed in the downgradient area
to provide additional monitoring locations in the Upper and Lower Black Creek aquifers.
N:\ work\concept\20212 7\Report.doc I April 1999
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Final Downgradient Groundwater
Remedial Action Construction Report
Geigv Chemical Corporation Site
Proposed locations for the seven additional wells were presented in Figure 4-1 of the
RA WP and are shown in Figure 1 of this report. Drilling and well installation activities
occurred from March 31, 1998 to April 7, 1998, following the receipt of property access
agreements.
2.1 Upper Black Creek Aquifer
Monitoring wells MW-34D and MW-35D were installed in the Upper Black Creek
aquifer at the locations shown in Figure 2. Monitoring results obtained from MW-34D
will be used to assess groundwater quality in the Upper Black Creek aquifer hydraulically
downgradient of MW-33S, and will be evaluated with the Agencies as part of the year
three remedy review to determine the need for continued monitoring at this location. As
requested by the North Carolina Department of Environment and Natural Resources
(NCDENR), the location ofMW-34D was approved by Randy McElveen ofNCDENR's
Raleigh, North Carolina office prior to construction.
Well MW-35D was installed at its proposed location and serves to monitor groundwater
· quality in the Upper Black Creek aquifer prior to its discharge to the headwaters of
McFarland's Branch.
2.2 Lower Black Creek Aquifer
Monitoring wells MW-36L, MW-37L, MW-38L, MW-39L, and MW-40L were installed
in the Lower Black Creek aquifer at the locations shown in Figure 3. MW-36L was
installed to serve as a sentinel well for Town of Aberdeen municipal water supply well
no. 2 and to address monitoring requirements described by North Carolina Administrative
Code Title ISA, Subchapter 2L, Section .0106, Paragraph (I), which provides for the use
of natural degradation and attenuation as a means of attaining compliance with State
groundwater quality standards. Due to drill rig access restrictions, MW-36L was
installed on the edge of an unpaved road approximately 250 feet southeast of its proposed
location.
MW-37L was installed as a replacement to U.S. EPA piezometer PZ-4, which was
destroyed during the construction of a residential building. MW-37L is located
N:\ work \concept\20212 7\Report.doc 2 April 1999
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Final Downgradient Groundwater
Remedial Action Construction Report
Geigy Cltemica/ Corporation Site
approximately I 00 feet south-southeast of its proposed placement (to minimize property
disturbance) and will serve to monitor the decline of pesticide concentrations that is
expected to occur in the central portions of the downgradient area.
MW-38L and MW-39L were installed along the eastern edge of Aberdeen Creek and
Ray's Mill Creek, respectively, and serve to monitor the Lower Black Creek aquifer at
locations adjacent to these streams. Due to access restrictions, MW-38L was relocated
approximately 240 feet north of its proposed location and was installed in the southwest
corner of the parking lot surrounding a commercial building. The proposed location was
inaccessible to the drill rig. Care was taken to construct the well in a manner such that it
will not receive surface water runoff from the parking lot. MW-39L was similarly
relocated approximately 80 feet to the west to allow equipment access and avoid
underground utilities.
MW-40L was installed at its proposed location and serves to monitor groundwater quality
in the Lower Black Creek aquifer adjacent to McFarland's Branch.
In all cases, revisions to monitoring well locations were made only as needed to provide
safe access for the drill rig and/or minimize disturbance to the property. The revisions do
not affect the monitoring objectives of the relocated wells.
2.3 Methods and Construction
Monitoring wells were installed in accordance with the requirements described in the
RA WP, drilling and well installation procedures presented in the Downgradient
Groundwater Investigation Work Plan (Rust, February 1995, addendum submitted June
1995), and drilling and well installation procedures presented in the U.S. EPA Region JV
Standard Operating Procedures / Quality Assurance Manual (EPA, May 1996).
All wells were installed by Boart Longyear Company using sonic drilling methods
equivalent to the methods used for the installation the existing downgradient area
monitoring wells. Continuous core samples were collected from each boring during
drilling and were visually logged by an Earth Tech hydrogeologist. Findings of
continuous core sample logs were compared against the Site stratigraphic model to ensure
N:\work\concept\20212 7\Report.doc 3 April 1999
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Final Downgradient Groundwater
Remedial Action Construction Report
Geigr Chemical Corporation Site
the monitoring wells were completed at the appropriate depth interval and screen the
targeted aquifer. Borehole logging results were consistent with projections generated by
the Site stratigraphic model regarding estimated well completion depths.
Well construction was overseen by an Earth Tech hydrogeologist and documented on soil
boring logs and well construction records (Appendix A). Except where noted below, the
design and construction of the new wells were identical to existing downgradient area
monitoring wells. All wells were constructed using 2-inch casings in 6-inch boreholes.
The wells have flush mount protective covers with locking caps and engraved well
identification labels. With the exception of MW-35D, well screen and riser pipe in
contact with groundwater was constructed of stainless steel, whereas riser pipe above the
water table was constructed of PVC. MW-35D, which is located at the perimeter of an
AM radio station antenna field, was constructed entirely of PVC screen and riser pipe to
address property owner concerns regarding potential for steel screen and riser pipe to
create broadcast interference. All wells were constructed using JO-foot screens (O.O1O-
inch continuous slot) with the exception of MW-4OL. Pursuant to the Companies
discussions with the Agencies regarding the construction of monitoring wells by streams
(discharge boundaries), MW-4OL was constructed using a 2O-foot screen to monitor the
entire saturated thickness of the Lower Black Creek aquifer (note that JO-foot screens
were sufficient to monitor the saturated thickness of the Lower Black Creek aquifer at
MW-37L and MW-38L).
The monitoring wells were developed to remove sediment introduced into the well during
installation and to remove fines from the filter pack. Wells were developed via bailing,
surging, and over-pumpin~. Purge water was containerized and transported to the Site
groundwater treatment building where it was introduced into the system for treatment and
discharge via the infiltration gallery. Water temperature, pH, specific conductivity,
turbidity, sand content, and purge volumes were recorded on monitoring well
development logs (Appendix B). Field-measured turbidity levels on final purge water
from all wells were below IO nephelometric turbidity units.
N:\work\concept\102127\ReporLdoc 4 April 1999
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Final Downgradient Groundwater
Remedial Action Construction Report
Geigv Chemical Corporation Site
The horizontal and vertical coordinates of the new wells were surveyed the week of
November 2, 1998 by Murphy, Hobson, and Sacks, a surveying firm registered in North
Carolina, and are presented in Table I.
3.0 DEDICATED SAMPLING PUMP INSTALLATION
Dedicated, positive displacement, pneumatically-operated sampling pumps were installed
in 23 downgradient area wells that will be utilized for routine groundwater monitoring
during the remedy (note that dedicated sampling pumps, equivalent to those described
herein, were previously installed in wells MW-IID, MW-18D and MW-30D, which are
also components of the facility property monitoring network). The sampling pumps were
installed during April I 998. Use of the sampling pumps will minimize sampling
variability in monitoring results. Wells equipped with sampling pumps are identified in
Figures I and 2.
Sampling pumps were supplied by QED Environmental Systems, Inc. and, with the
exception of the unit installed in MW-35D, are constructed of Teflon and stainless steel.
Discharge tubing is Teflon-lined polyethelyne, such that groundwater only contacts inert
materials. The pump body, bladder, check valves and tubing used in MW-35D are
constructed of PVC, consistent with the construction of the well. Pump intakes were
placed approximately midway within the screen interval of each well. Pumps were
selected to provide suitable flow control to allow low-flow sampling. Well caps, which
contain the sampling pump discharge fittings, were fitted with rubber boots supplied by
QED to provide a water-tight seal.
N:\work\concept\202127\Report.doc 5 April 1999
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REFERENCES
Final Downgradient Groundwater
Remedial Action Construction Repon
Geigv Chemical Corporation Site
Rust Environment & Infrastructure, November, I 997. Final Downgradient Groundwater
Remedial Action Work Plan, Geigy Chemical Corporation Site, Aberdeen, North
Carolina.
Rust Environment & Infrastructure, February, 1995. Downgradient Groundwater
Investigation Work Plan, Geigy Chemical Corporation Site, Aberdeen, North
Carolina.
Rust Environment & Infrastructure, June, I 995. Addendum to the Downgradient
Groundwater Investigation Work Plan, Geigy Chemical Corporation Site,
Aberdeen, North Carolina.
N: \ work\concep/\202 I 2 7\Report.doc 6 April 1999
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Stream
VS EPA
Monitoring Well/Piezometer
Monitoring Well
Lower Black Creek Aquifer
Monitoring Well
Upper Bleck Creek Aquifer
♦ Town of Aberdeen Municipal Well
• Piezometer Nest
Monitoring Well Cluster
Upper/ lower Black Creek Aquifer
Q Sentinel Well
•
Existing well to be equipped with dedicated
sampling pump.
Proposed locations of monitoring well to be
constructed for the downgradient area remedy
and equipped with dedicated sampling pump.
at this location to be contingent
on water-level data results.
0
EARTH0T EC H
A t:qco Jt,fTERNATIONAL LTD. COMPANY
800 0 800 1600 ~--------
1 4
SCALE IN FEET
1 2
SCALE IN MILES
FIGURE 1
DOWNGRADIENT REMEDIAL ACTION
PROPOSED MONITORING WELL AND
SAMPLING PUMP LOCATIONS
GEIGY CHEMICAL CORPORATION SITE B EN O CARO A
34
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0 BOO
SCALE IN FEET
1 2
SCALE IN MILES
" " " " " " "
1600
34
19-APR-1999
FIGURE 2
DOWNGRADIENT MONITORING WELLS
UPPER BLACK CREEK AQUIFER
GEIGY CHEMICAL CORPORATION SITE
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34
19-APR-1999
EARTH©T E C
A tqco lr,rTERNATIONAl LTD. COMPANY
H
FIGURE 3
DOWNGRADIENT MONITORING WELLS
LOWER BLACK CREEK AQUIFER
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TABLE 1
Final Downgradient Groundwater
Remedial Action Construction Report ·
Geigv Chemical Corporation Site ,
MONITORING WELL SURVEY COORDINATES
ELEVATION
CODE NORTHING EASTING FLUSH CAP MSRPNT
MW-34D 502,059.98 1,877,543.86 436.53 436.08
MW-35D 500,077.07 1,875,451.54 389.24 389.08
MW-361 502,406.80 1,876,423.33 414.18 413.87
MW-371 502,080.17 1,873,348.03 354.86 354.45
MW-381 502,817.47 1,871,156.40 327.30 327.08
MW-391 504,391.41 1,872,504.33 329.86 329.11
MW-401 501,319.41 1,872,838.23 334.45 334.00
N:\work\concept\202127\Report.doc April 1999
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I APPENDIX A
m WELL CONSTRUCTION LOGS
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GROUND WATER MONITORING INSTALLATION DETAIL
PROJE:CT: Downgradient Groundwater Remedial Action JOB NO 202127. 10200
LOCATION: Aberdeen, NC INSTALLATION NO MW•34D
CLIENT: Geigy Chemical Coreoration Site TYPE OF INSTALLATION
Rotasonic
CONTRACTOR: Boart Longyear BORING NO. MW-34D
DRILLIER: Kale Bittner CERTIFICATION NO: LOCATION See Site Plan
RUST FIELD REPRESENTATIVE: Rich O'Keefe INSTALLATION DATE 4 / 2 / 9 8
SURVE:Y f1i7l..-TOP OF PROTECTIVE CASING (CAP OPEN) DATUM: NGVD
GROUND STICKUP
SURFACE ELEVATION: 436.08 ft. TOP OF WELL CASING OR RISER PIPE
S"nd 0·5 ft. EL 436.53 ft. STICKUP 0.45 ft.
PVC at 20.30 ft. I -TYPE OF SURFACE SEAL w ..J Volclay THICKNESS OF SURFACE SEAL < Bentonite Grout 0 (/) to 1 ft. TYPE OF PROTECTIVE CASING Flush Mount
0 Clayey Sand 5•14 . -I-INSIDE DIAMETER 8.0 in. ft. I-TOT AL LENGTH 2.0 fl. 0 z --(/) -..J BOTTOM OF PROTECTIVE CASING
< DEPTH w
(/)
C Clay 14·19.5 ft.
z PVC/ SS < N ' TYPE OF WELL CASING OR RISER PIPE
..J ~ 2.0 in. ..J Sandy Clay 19.5 • ~ INSIDE DIAMETER u: 30.0 Bentonite :,,: ~ ~ 0 -6 in. < " '" APPROXIMATE DIAMETER OF BOREHOLE
m 43.0 ft.
ui Sand 30·60 ft. z
0 Fine Sand to 46.6 ' TOP OF WELL POINT
E ft. ~ EL 385.78 ft. DEPTH 50.30 ft.
C z TYPE OF WELLPOINT Stainless Steel 0 Coarse Sand lo
0 48 ft . I SCREEN GAUGE OR SIZE OF OPENINGS 0.010 in.
..J INSIDE DIAMETER 2.0 in. 0 TYPE OF BACKFILL AROUND POINT Coarse Sand #7 (/)
w N ii: < BOTTOM OF WELL POINT :. :. EL 375.78 ft. DEPTH 60.30 ft.
::, --BOTTOM OF BOREHOLE (/) EL 375.78 ft. DEPTH 60.30 ft. • FIGURES ABOVE REFER • ALL DEPTHS ARE REFERENCED TO DEPTH IN FEET TO GROUND SURFACE
,;o.3o ft. 10.00 ft. 60.30 ft. ~~~ + = BENTONITE SEALS
LENG'rH OF RISER PIPE LENGTH DF POINT TOTAL
100·003-9{>7 WCF24 11/10/98 2:26:12 PM
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GROUND WATER MONITORING INSTALLATION DETAIL
PRO,IECT: Downgradient Groundwater Remedial Action JOB NO 202127. 10200
LOCATION: Aberdeen, NC INSTALLATION NO MW-3SD
CLIEIIIT: Geigy Chemical Coreoration Site TYPE OF INSTALLATION
Rotasonic
coN-rRACTOR: Boart Longyear BORING NO. MW-35D
DRILLER: Kale Bittner CERTIFICATION NO: LOCATION See Site Plan
RUST FIELD REPRESENTATIVE: Rich O'Keefe INSTALLATION DATE 4 / 1 / 9 8
SURVEY ~ TOP OF PROTECTIVE CASING (CAP OPEN) DATUM: NG\/0
GROLIND STICKUP
SURFACE ELEVATION: 389.08 ft. TOP OF WELL CASING OR RISER PIPE
Sand 0-42 ft. EL 389.24 ft. STICKUP 0.16 ft. '
' -TYPE OF SURFACE SEAL w ..J Volclay THICKNESS OF SURFACE SEAL < 3entonite Grout u Ill to 1 ft. TYPE OF PROTECTIVE CASING Flush Mount
0 -8.0 in. I-INSIDE DIAMETER
I-TOTAL LENGTH 2.0 ft.
0 ~ -
Ill BOTTOM OF PROTECTIVE CASING
..J < DEPTH
w Ill
0 z PVC < ~ ' TYPE OF WELL CASING OR RISER PIPE
..J ~ INSIDE DIAMETER 2.0 in. ..J
ii: Bentonite ' ~ ' ~ u ~ -6 in. < APPROXIMATE DIAMETER OF BOREHOLE
m 24.0 ft.
vi z
0 Fine Sand to 28 TOP OF WELL Pi?~NT 356_ 19 ft. E ft. § DEPTH 32.89 ft.
C z TYPE OF WELLPOINT PVC 0
I 0.010 in. u Coarse Sand to SCREEN GAUGE OR SIZE OF OPENINGS
..J 29.5 ft. INSIDE DIAMETER 2.0 in.
0 Ill TYPE OF BACKFILL AROUND POINT Coarse Sand #7
w N a: < BOTTOM OF WELL POINT
::.. EL 346.19 ft. DEPTH 42.89 ft. ::.. ::::, --BOTTOM OF BOREHOLE Ill EL 344.08 ft. DEPTH 45.00 ft. • FIGURES ABOVE REFER • ALL DEPTHS ARE REFERENCED
TO DEPTH IN FEET TO GROUND SURFACE
32.89 ft. + 10.00 ft. 42.89 ft. ~~~ = BENTONITE SEALS
LENGTH OF RISER PIPE LENGTI-1 OF POINT TOTAL
100·003·1~58 WCF24 11/10/98 3.26.52 PM
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GROUND WATER MONITORING INSTALLATION DETAIL
PROJECT: Downgradient Groundwater Remedial Action JOB NO 200127. 10200
LOCATION: Aberdeen, NC INSTALLATION NO MW-3 SL
CLIENT: Geigy Chemical Coreoration Site TYPE OF INSTALLATION
Rotasonic
CONTRACTOR: Boart Longyear BORING NO. MW-36L
DRILLER: Kale Bittner CERTIFICATION NO: LOCATION See Sile Plan
RUST FIELD REPRESENTATIVE: Rich O'Keefe INSTALLATION DATE 4 /7 /9 8
SIJRVEY ~ TOP OF PROTECTIVE CASING (CAP OPEN) DATUM: NGVD
GROUND STICKUP
413.87 ft. ' SURFACE ELEVATION: TOP OF WELL CASING OR RISER PIPE
Sand 0-5.5 ft. EL 414.18 ft. STICKUP 0.31 ft.
Type Ill Well -· Steel 6.25 in. ID TYPE OF SURFACE SEAL w Clay 5.5-12.5 ft . .J Surface Casing THICKNESS OF SURFACE SEAL < u to 33 ft. ' u, PVC Riser 0-36 TYPE OF PROTECTIVE CASING Flush Mount
0 ft. -INSIDE DIAMETER 8.0 in. 1-Sand 12.5-32 ft. 1-Portland TOT AL LENGll-1 2.0 ft. 0 Cement Grout z -· lo 1 ft. u,
.J ,entonite Grout BOTTOM OF PROTECTIVE CASING
< 40-83 ft. DEPTH w u,
C z PVC/SS < ' ' TYPE OF WELL CASING OR RISER PIPE
.J ~ ~ INSIDE DIAMETER 2.0 in. .J
ii: Borehole 12 in. to Bentonite ~ :.: ~ u 30 ft. ' -6 in. < 6 in. from 30 ft. to ' 0 APPROXIMATE DIAMETER OF BOREHOLE
ID 83.0 ft.
ui 110 ft.
z -0 Fine Sand to 90 TOP OF WELL POINT
E ft. ~ EL 317.87 ft. DEPTH 96.00 ft.
C Clay 32-64.5 ft. z TYPE OF WELLPOINT Stainless Steel 0 0.010 in. u Coarse Sand to I SCREEN GAUGE OR SIZE OF OPENINGS
.J 93 ft. INSIDE DIAMETER 2.0 in. 0 TYPE OF BACKFILL AROUND POINT Coarse Sand #7 u,
w N Sand 64.5-105 ft. ii: < BOTTOM OF WELL POINT :a: EL :a: 307.87 ft. DEPTH 106.00 ft.
::, -BOTTOM OF BOREHOLE u, EL 303.87 ft. DEPTH 110.00 tt. • FIGURES ABOVE REFER • ALL DEPTHS ARE REFERENCED
TO DEPTH IN FEET TO GROUND SURFACE
96.00 ft. + 10.00 ft. 106.00 ft. ~~"'~ = BENTONITE SEALS
LENGTH OF RISER PIPE LENGTH OF POINT TOTAL
100-003-959 WCF24 11110/98 2:26:12 PM
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GROUND WATER MONITORING INSTALLATION DETAIL
PRCIJECT: Downgradient Groundwater Remedial Action JOB NO 202127. 10200
LOCATION: Aberdeen, NC INSTALLATION NO MW-3?L
CLIE:NT: Geigy Chemical Coreoration Site TYPE OF INSTALLATION
Rotasonic
CONTRACTOR: Boart Longyear BORING NO. MW-37L
DRILLER: Kale Bittner CERTIFICATION NO: LOCATION See Sile Plan
RUST FIELD REPRESENTATIVE: Rich O' Keefe INSTALLATION DATE 4 / 3 / 9 8
SURVEY ~ TOP OF PROTECTIVE CASING (CAP OPEN} DATUM: NGVD
GROUND STICKUP
SURFACE ELEVATION: 354.45 ft. TOP OF WELL CASING OR RISER PIPE
Glayey Sand 0-7 tt. ' EL. 354.86 ft. STICKUP 0.41 ft.
PVC riser -beginnning at TYPE OF SURFACE SEAL w .J 6.18 tt. . THICKNESS OF SURFACE SEAL < ()
C/) Volclay TYPE OF PROTECTIVE CASING Flush Mount
0 Bentonite Grout INSIDE DIAMETER 6.0 in. I--
I-to -1 ft.
0 TOTAL LENGTH 2.0 ft.
~ Clay 7-15 tt.
C/) -BOTTOM OF PROTECTIVE CASING .J < DEPTH w C/)
Q z PVC/SS < S: . '\ TYPE OF WELL CASING OR RISER PIPE
.J ~ 2.0 in. .J ~ INSIDE DIAMETER u:: Bentonite
~ Sand 15-46 ft. ~ ~ () 6 in. < ~ ~ APPROXIMATE DIAMETER OF BOREHOLE
m 28.0 ft.
ui z 0 Fine Sand to 31 TOP OF WELL POINT 3 8 2 f
E ft. ~ EL 1.71. DEPTH 36.18 ft.
Q z Coarse Sand to TYPE OF WELLPOINT Stainless-Steel 0 () 33 ft. I SCREEN GAUGE OR SIZE OF OPENINGS 0.010 in.
.J INSIDE DIAMETER 2.0 in. 0 TYPE OF BACKFILL AROUND POINT Coarse Sand #7' C/)
w N Clay 46-50 tt. ii: < BOTTOM OF WELL POINT
:; EL 308.27 tt. DEPTH 46.18 ft. :;
::) -BOTTOM OF BOREHOLE C/) EL 304.45 tt. DEPTH 50.00 ft. • FIGURES ABOVE REFER • ALL DEPTHS ARE REFERENCED
TO DEPTH IN FEET TO GROUND SURFACE
~~~ 36.18 ft. + 10.00 ft. 46.18 ft. = BENTONITE SEALS
LENGl"H OF RISER PIPE LENGTH OF POINT TOTAL
100-003-960 WCF24 11110/98 2.26:12 PM
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GROUND WATER MONITORING INSTALLATION DETAIL
PROJECT: Downgradient Groundwater Remedial Action JOB NO 202127. 10200
LOCATION: Aberdeen, NC INSTALLATION NO MW-3BL
CLIENT: Geigy Chemical Coreoration Site TYPE OF INSTALLATION
Rotasonic
CONTRACTOR: Boart Longyear BORING NO. MW·38L
DRILLER: Kale Bittner CERTIFICATION NO: LOCATION See Site Plan
RUST FIELD REPRESENTATIVE: Rich O'Keefe INSTALLATION DATE 3131/98
SURVEY ~ TOP OF PROTECTIVE CASING (CAP OPEN} DATUM: NGVD
GROUND STICKUP
SURFACE ELEVATION: 327.08 ft.
TOP OF WELL CASING OR RISER PIPE
Sand to 10 ft. EL. 327.30 ft. STICKUP 0.22 ft.
PVC riser
w beginning at TYPE OF SURFACE SEAL
.J 8.14 ft. THICKNESS OF SURFACE SEAL < u II) Volcaly TYPE OF PROTECTIVE CASING Flush Mount 0 .
I-entonite Grout ! INSIDE DIAMETER 8.0 in.
I-to -1 ft. ' 2.0 ft. TOTAL LENGTH 0 ~ Clay 10· 15.5 fl.
II) BOTTOM OF PROTECTIVE CASING .J < DEPTH w II)
C z PVC I SS < ' TYPE OF WELL CASING OR RISER PIPE
.J ~ ~ INSIDE DIAMETER 2.0 in. .J
ii: Sand 15.5·28 fl. Bentonite ~ li.: ~ u ~ < ~ APPROXIMATE DIAMETER OF BOREHOLE 6 in. cc 11.0 ft. " en z
0 Fine Sand to 14.0 TOP OF WELL POINT
E ~ EL. 308.94 ft. DEPTH 18.14 ft. ft. ~ C z TYPE OF WELLPOINT Stainless Steel 0 Coarse Sand to u 15.7 ft. t::: SCREEN GAUGE OR SIZE OF OPENINGS 0.010 in.
.J Clay 28·30 fl . I INSIDE DIAMETER 2.0 in. 0 TYPE OF BACKFILL AROUND POINT Coarse Sand #7 II)
w N ii: < ' BOTTOM OF WELL POINT ::;; EL. 298.94 ft. DEPTH 28.14 ft. ::;; ::, BOTTOM OF BOREHOLE II) EL. 297.08 ft. DEPTH 30.00 ft. • FIGURES ABOVE REFER • All DEPTHS ARE REFERENCED TO DEPTH IN FEET TO GROUND SURFACE
18.14 ft. 10.00 ft. 28.14 ft. ~~~~ + = SENTONrTE SEALS LENGTH OF RISER PIPE LENGTH OF POINT TOTAL
100-003-961 WCF24 11110/98 2:26:12 PM
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GROUND WATER MONITORING INSTALLATION DETAIL
PROJECT: Downgradient Groundwater Remedial Action JOB NO 202127. 10200
LOCATION: Aberdeen, NC INSTALLATION NO MW-39L
CLIENT: Geigy Chemical Coreoration Site TYPE OF INSTALLATION
Rotasonic
CONTRACTOR: Boart Longyear BORING NO. MW-39L
DRILLER: Kale Bittner CERTIFICATION NO: LOCATION See Site Plan
RUST FIELD REPRESENTATIVE: Rich O'Keefe INSTALLATION DATE 3/31 /98
SURVEY ~ TOP OF PROTECTIVE CASl~G (CAP OPEN) DATUM: NGvO
GROUND STICKUP
SURFACE ELEVATION: 329.11 ft. • TOP OF WELL CASING OR RISER PIPE
Sand to 10 ft. EL 329.86 ft. STICKUP 0.75 ft.
: -TYPE OF SURFACE SEAL w ..J THICKNESS OF SURFACE SEAL < u Flush Mount en TYPE OF PROTECTIVE CASING
0 • INSIDE DIAMETER 8.0 in . I--
I-TOT AL LENGTH 2.0 ft.
0 Clay from 10-15 tt. z -.
en BOTTOM OF PROTECTIVE CASING
..J DEPTH < w en
C z Stainless Steel < . '" . ' TYPE OF WELL CASING OR RISER PIPE
..J Sand 15-18 tt. \ ..J N INSIDE DIAMETER 2.0 in.
u: Bentonite ~ ~ ~ u ~ 6 in. < ~ APPROXIMATE DIAMETER OF BOREHOLE
ID 1 .0 ft.
en Bentonite to -1 ft.
z l 0 Fine Sand to 6.4 TOP OF WELL POINT 3 8 82 f 10.29 ft. E ft. ~ EL 1. t. DEPTH
C Coarse Sand to z 8.2 ft. TYPE OF WELLPOINT Stainless Steel 0 I u SCREEN GAUGE OR SIZE OF OPENINGS 0.010 in.
..J INSIDE DIAMETER 2.0 in . 0 TYPE OF BACKFILL AROUND POINT Coarse Sand #7 en
w N ii: I=
< Clay 18-25 fl. BOTTOM OF WELL POINT
:. EL. 308.82 ft. DEPTH 20.29 ft. :. ::, -BOTTOM OF BOREHOLE en EL 304.11 ft. DEPTH 25.00 ft. • FIGURES ABOVE REFER • ALL DEPTHS ARE REFERENCED
TO DEPTH IN FEET TO GROUND SURFACE
10.29 ft. 10.00 ft. 20.29 ft. BENTONITE SEALS ~'\_"\J + =
LENGTH OF RISER PIPE LENGTH OF POINT TOTAL
100-003-962 WCF24 11110/98 2.26.12 PM
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GROUND WATER MONITORING INSTALLATION DETAIL
PROJECT: Downgradient Groundwater Remedial Action JOB NO 202127.10200
LOCATION: Aberdeen, NC INSTALLATION NO MW-40L
CLIENT: Geigy Chemical Coreoration Site TYPE OF INSTALLATION
Rotasonic
CONTRACTOR: Boart Longyear BORING NO. MW-40L
DRILLER: Kale Bittner CERTIFICATION NO: LOCATION See Site Plan
RUST FIELD REPRESENTATIVE: Rich O'Keefe INSTALLATION DATE 4 / 1 / 9 8
SURVEY ~ TOP OF PROTECTIVE CASING (CAP OPEN) DATUM: NGVD
GROUND STICKUP
' SURFACE ELEVATION: 334.00 ft. TOP OF WELL CASING OR RISER PIPE
Sandy Clay to 4 ft. EL 334.45 ft. STICKUP 0.45 ft.
-TVPE OF SURFACE SEAL w ..J THICKNESS OF SURFACE SEAL < 0 Flush Mount u, TYPE OF PROTECTIVE CASING
0 -INSIDE DIAMETER 8.0 in. I-
I-TOT AL LENGTH 2.0 ft.
0 z --u, BOTTOM OF PROTECTIVE CASING
..J < DEPTH w u,
C z Sand to 27 ft. Stainless Steel < ~ ' TYPE OF WELL CASING OR RISER PIPE
..J ~ 2.0 in. ..J ~ INSIDE DIAMETER
ii: Bentonite
:,:: ~ ~ 0 -6 in. ~ ' APPROXIMATE DIAMETER OF BOREHOLE < m 1.0 ft.
ui z 0 Fine Sand to 5 ft. TOP OF WELL POINT f
E ~ EL 326.24 t. DEPTH 7.76 ft.
C Coarse Sand to 6 z TYPE OF WELLPOINT Stainless Steel 0 Clay 28-32 ft. ft.
0 I SCREEN GAUGE OR SIZE OF OPENINGS 0.010 in.
..J INSIDE DIAMETER 2.0 in. i5 TYPE OF BACKFILL AROUND POINT Coarse Sand #7 u,
w N ic < BOTTOM OF WELL POINT
:;; EL 306.24 ft. DEPTH 27.76 ft. :;;
::::, ~ -BOTTOM OF BOREHOLE u, -EL 302.00 ft. DEPTH 32.00 ft. • FIGURES ABOVE REFER • ALL DEPTHS ARE REFERENCED
TO DEPTH IN FEET TO GROUND SURFACE
7.76 ft. + 20.00 ft. 27.76 ft. BENTONITE SEALS ~"""'~ =
LENGTH OF RISER PIPE LENGTH OF POINT TOTAL
100·003·963 WCF24 11/10/98 .2:26: 12 PM
I Rlffl'ENVIRONMENT & INFRASTRUCTURE TEST BORING REPORT BORING NO. MW-34D
PROJECT: Downgradient Groundwater Remedial Action JOB NO: 202127
CLIENT: Geigy Chemical Coreoration Site PAGE NO: 1 OF 3 I
CONTRACTOR: Boart Longyear LOCATION: See Site Plan EQUIPMENT USED: BQla~QniQ
CORE ELEVATION: GROUND WATER DEPTH TO: CASING SAMPLER BARREL I
HRS AFTER BOTTOM BOTTOM "' / DATE START: 4/2/98 DATE WATER TYPE COMP OF CASING OF HOLE 4/2/98 SIZEID V DATE FINISH: 6.0-inch 4.0-inch
HAMMER WT ....._____ / / " DRILLER: K. Bittner I
HAMMER FALL / ......._ / '\ PREPARED BY: R. O'Keefe
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS
·1
FOOT 6 INCHES
eOQBLY GBAQl:;12 SA~D ,se)
Loose, dry, dark brown to tan to orange, (in sequence from Oto 1, 1 to 2, and 2 to 5 feet),
mostly fine to coarse sand, trace to few silt and clay. I
I Run 0-5'
1
I
-5 CLAYt;Y SA~D (Ct::ll
Loose, moist to wet, tan and white, mostly fine to very coarse sand, some clay, trace
gravel. I
I
1. -10 Run 5-15'
2
I
CLAYJ;Y SA~12 (Ct:ll
As above, purple color. .I
-~----------------------CLAY (CL}
-15 Dense, dry, gray, mostly clay, very stiff.
~LAY (kL)
As above to 19.5 feet. I
I
Run 15-22'
I 3
-20
RI nc"0 ITY RI "AMPI • 1n COMPnN<NT •1-GROUND WATER • ..
" ()-4 VERY LOOSE 0-2 VERY SOFT s SPLIT SPOON M05nY 5~100% WO • WHILE DRILLING
5-10 LOOSE 3--4 SOFT T TUBE LITTLE 15--25% NE·NOTENCOUNTEREO
11-30 MEDIUM DENSE 5-8 MEDIUM STIFF u UNDISTURBED PISTON FEW 5-10% UR· NOT READ
31·50 DENSE .. ,, STIFF G GRAB SAMPLE TRACE <5%
"· VERY DENSE 16-30 VERY STIFF X OTHER BORING NO. MW-34D
·" HARO NA NO RECOVERY
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RIKI' ENVIRONMENT & BORING NO. MW-34D
INFRASTRUCTURE TEST BORING REPORT
PAGE NO: 2 OF 3
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT & INCHES
-20 See next page.
Run 15-22' Description starts at 19.5 feet.
eQQBLY ~BAD1;12 SAriD Wilt:! CLAY {Se} 3 Loose, wet, tan to white, mostly fine to medium sand, little clay. (19.5 to 22 feet) -----------------------!;LAYeY SA~!:! I SA~l:!Y !;LAY (!;~) (22 to 30 feet)
Dense, moist, gray/tan/white, mostly clay and very coarse sand, some fine sand and clay,
trace gravel. Very dense. Very tough drilling with Rotasonic.
-25
Run 22-30'
4
-30 ----- - - ----------------eQQBLY GBAQE;D SA~D WIItt CLAY (Sf)
Loose, wet, tan, purple and white, mostly fine to very coarse sand, little clay. Very coarse
sand increases near end of run, clay decreases to the end of the run.
-35 Run 30-40'
5
1-40 fQQBLY GBAQED SA~D (Se)
Loose, wet, as above, mostly fine to coarse sand, trace to few clay in spots, trace Qravel,
consistent to 50 feet.
Run 40-50'
6
-45
RL n~N••~ R1 nws/_EL_C.QNs1•T~ .. ~v -----.,., ... r-nM•nNENT'" GRQ.VND WATER ABBREV ... VERY LOOSE .. , VERY SOFT s SPLIT SPOON MOSTLY 50.100% WO • WHILE DRILLING
1-10 LOOSE , .. SOFT T TUBE LmLE 15-25% NE· NOT ENCOUNTERED
11·30 MEDIUM DENSE ... MED1UII STIFF u UNDISTURBED PISTON FEW 5-1"" UR· NOT READ
31·50 DENSE .... STIFF G GRAB SAMPLE TRACE .. ,. ... VERY DENSE 16-30 VERY STIFF X OTHER BORING NO. MW-340
•31 HARD NR NO RECOVERY
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llllKT ENVIRONMENT & BORING NO. MW-34D
INFRASTRUCTURE TEST BORING REPORT
PAGE NO: 3 OF 3
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT &INCHES
eQQBLI ~BAl2fQ SAt:112 (Se)
See Description at 40 feet BGS.
Run 40-50'
6 continued
-ontinued
' 50 EQQBLI GBAl2~12 SAt-112 (Se)
As previous.
' 55 Run 50-60'
7
,_ 60
End of Boring at 60 feet BGS.
'-65
'-70
_ll.l, "E"0 'TY •I ,..,U,1£'1.fs ••M"' c ,n "'"'MPONENT OJ.. '-iB.P} 1Nn WATER Aaaacu ... VERY LOOSE .. , VERY SOFT S SPLIT SPOON MOSTLY 50-100% WD • WHILE ORIWNG .. ,. LOOSE M SOFT T TUBE LITTLE 15-25% NE • NOT ENCOUNTERED
11-30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. ,.,. UR •NOT READ
31-50 DENSE .. ,. STIFF 0 GRAB SAMPLE TRACE ....
51• VERY DENSE , .... VERY STIFF X OTHER BORING NO. MW-34D
'" HARD NA NO RECOVERY
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RIKI' ENVIRONMENT & INFRASTRUCTURE TEST BORING REPORT BORING NO. MW-35D
PROJECT: Downgradient Groundwater Remedial Action JOB NO: 202127
CLIENT: Geigy Chemical Cor~oration Site PAGE NO: 1 OF 3
CONTRACTOR: Boart Longyear LOCATION: See Site Plan EQUIPMENT USED: BQta:,Qnic
CORE ELEVATION: GROUND WATER DEPTH TO: CASING SAMPLER BARREL
HRS AFTER BOTTOM BOTTOM I"' / DATE START: 4/1/98 DATE WATER TYPE COMP OF CASING OF HOLE 4/1/98 SIZEID 6.0•inch 4.0·inch V DATE FINISH:
HAMMER WT
-------
/ /'\. DRILLER: K. Bittner
HAMMER FALL / '-.._ / ' PREPARED BY: R. O'Keefe
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 INCHES
eQQBLY GBAQEQ SAHl2 (Se)
Loose, moist, tan to orange, mostly fine to coarse sand, trace silt.
Run 0-5'
1
~5
eQQBLY GBADEQ SAHl2 (Sel
As above, trace clay.
'-10 Run 5-15' fQQBLY GBADE SAND (Sf) 2 Loose, wet, tan, mostly very coarse sand, some fine sand, trace clay. Coarsening with
depth, tan and white near end of run.
-15
fQQBLY GBAQEQ SAH12 (Sf)
Loose, wet, tan white orange, mostly fine to very coarse sand to 24 feet BGS then zone of
mostly very coarse and pink/purple clay (trace).
Run 15-25'
3
~20
.,., f"IV.IC:./......,. ~"""'TY DI l">IM~/FT ., -.. --, .-'""' ""MP""1"NT ¾ ~R""'''"·'""' I 1-U A.nnnr-v ... VERY LOOSE 0-2 VERY SOFT s SPLIT SPOON MOSnY 50-100% I WO -WHILE DRILLING
S-10 LOOSE ,.. SOFT T TUBE LrTTl.E 15-25% NE•NOTENCOUNTERED
11-30 MEDIUM DENSE 5-8 MEDIUM STIFF u UNDISTURBED PISTON FEW 5-10"4 UR. NOT READ
31-50 DENSE 9-15 STIFF G GRAB SAMPLE TRACE <5%
5t. VERY DENSE 16-30 VERY STIFF X OTHER BORING NO. MW-35D .,, HARD NR NO RECOVERY
RIKI' ENVIRONMENT & BORING NO. MW-35D
INFRASI'RUCTURE TEST BORING REPORT I
PAGE NO: 2 OF 3
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS I
FOOT I INCHES
f-20 eQQBLY GBA'2El2 SAHQ {Se}
See previous description at 15 feet BG$. I
I Run 15-25'
3 !continued
ontinued
Very coarse sand form 24 to 25 feet BGS. I
f-25 eQQBLY GBAQEl2 SAtU~ {Se)
Loose, wet, white/pink/purple. mostly very coarse sand, trace clay. .I
I ,,
-30 Run 25-35'
I 4
I
I -35 eQQBLY !aBIIREC! Sl\t!tl (Se)
I As above, to 42 feet BGS.
I
-40 Run 35-45'
5 I
------------------------SI\NC!Y CLAY (CH) I
Dense, moist, gray and tan, mostly clay, some fine to coarse sand, very stiff.
I
-45
b• • ~-"nNSIST" .. __ "'"MDI c 1n .,_ G.RO.UND WATER A00bCU I . • ... VERY LOOSE .. , VERY SOFT s SPLfTSPOON MOSTLY 5~100% WO• WHILE DRILLING .. ,. LOOSE ... SOFT T TUBE LITTLE 15-25% NE· NOT ENCOUNTERED
11-30 MED1UII DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. ,,,. UR ·NDTREAD
31-50 DENSE 0-15 STIFF G GRAB SAMPLE TRACE <5% .,. VERY DENSE , .. ,o VERY STIFF X OTHER BORING NO. MW-35D .,, HARD NR NO RECOVERY
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RIKTENVIRONMENT & JNFRASTRUCI1JRE
DEPTH CASING SAMPLER SAMPLE
IN BLOWS BLOWS NUMBER
FEET PER PER
FOOT &INCHES
'-50
' 55
~so
~s5
'-70
BLOWS/FT. DEU-1-·· ,.. VERY LOOSE 0-2 .. ,. LOOSE ...
11-30 MEDIUM DENSE ...
31•50 DENSE .. ,.
51• VERY DENSE 15-30
·"
BORING NO. MW-35D
TEST BORING REPORT
PAGE NO: 3 OF 3
SAMPLE
DEPTH
RANGE FIELD CLASSIFICATION AND REMARKS
End of Boring at 45 feet BGS.
N-·· -•••p• C IM r.nMpr. .. •ENT o/.. GROUNIUV•Tco • oeRc"
VERY SOFT S SPLIT SPOON MOSTLY 50-100% WO· WHILE DRIWNG
SOFT T TUBE UTT1.E 15-25% NE· NOT ENCOUNTERED
MEDIUM STIFF u UNDISTURBED PISTON FEW .. , ... UR· NOT READ
STIFF G GRAB SAMPLE TRACE """ VERY STIFF X OTHER BORING NO. MW-35D
HARD NA NO RECOVERY
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IIIKrENVIRONMENT & INFRASTRUCTURE TEST BORING REPORT BORING NO. MW-36L
PROJECT: Downgradient Groundwater Remedial Action JOB NO: 202127
CLIENT: Geigy Chemical Cor~oration Site PAGE NO: 1 OF 5
CONTRACTOR: Boart Longyear LOCATION: See Site Plan EQUIPMENT USED: BQla~Q0iQ
GROUND WATER DEPTH TO: CASING SAMPLER CORE ELEVATION: BARREL
HRS AFTER BOTTOM BOTTOM \__ / DATE START: 4/4/98 DATE WATER TYPE COMP OF CASING OF HOLE 4nt9B SIZE ID V DATE FINISH: 6.0-inch 4.0-inch
HAMMER WT
-------
/ /'\_ DRILLER: K. Bittner
HAMMER FALL / '--7 " PREPARED BY: R. O'Keefe
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH FEET PEA PEA RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 lNCHES
eQQBLY GBAl21;D SA~Q {Se)
Loose, moist, mostly fine to medium sand, few silt and clay.
Run 0-5'
1
~5
>------------------------CLAY WIIl:I SAND u:~Ll
Very dense, dry, mostly gray clay, little coarse grained sand.
Run 5·10'
2
~ 10
CLAY WII~ SMIC! (CL)
As above, sand content ranges from few to little, sometimes trace sand.
Run 10-15'
3
~ 15
CLAY WIIl:I SA~D (CL)
As above, moist, dark gray and brown.
Run 15-25' eQQBLY GBADED SA~Q WIIl:t CLAY (Se) 4 Loose, moist/wet, gray/white/tan, mostly fine to coarse sand, little clay to 25 feet (end of
run), clay decreases with depth.
~20
--~•'"I~" c, -""•'~l~TF'Nf:Y SAUDI c ,n . -.,_ ---····-.,.,,...-,:Cl ,.,..,,..,,..,...,
1).4 VERY LOOSE 0-2 VERY SOFT s SPLIT SPOON MOSTLY 50-100% WO • WHILE DRILLING
5-to LOOSE 3-4 SOFT T TUBE LITnE 15-25% NE-NOT ENCOUNTERED
11·30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW 5-10% UR· NOT READ
31·50 DENSE 9-15 STIFF G GRAB SAMPLE TRACE <5% ,,. VERY DENSE 16-30 VERY STIFF X OTHER BORING NO.' MW-36L
'" HA.RD NR NO RECOVERY
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RIKI' ENVIRONMENT & BORING NO. MW-36L
INFRASfRUCTURE TEST BORING REPORT
PAGE NO: 2 OF 5
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 INCHES
~20 fQQBLY GBADED SAND ,se)
As previous, trace clay to 25 feet.
Run 15-25'
4 !continued
ontinued
~25 EQQBLY GBAQEQ SAND WIItj CLAY (Se)
As above, little clay in matrix with increasing depth.
Run 25-33'
5
~30
CLAY (CL)
Very dense, dry, gray, mostly clay, end initial boring at 33 feet BGS. Auger and set
surface casing.
'-35
Run CLAY (CL) 6 As above.
CLAY WIIf:i SAfiQ (CL)
Dense, dry, as above, little sand, sand percentage increases with depth of run.
~40
Run
7
~45
-· nE"•1-· -· nw-·---N~I "Af'"' e,n ~~upnN.NT "L ~0 011No WATER AB00•v ... VERY LOOSE 0-2 VERY SOFT s SPLIT SPOON MOSTLY 00-1,0,. WD • WHILE DRILLING .. ,, LOOSE ... SOFT T TIJBE LITTLE 11-25"4 NE• NOT ENCOUNTERED
11-30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. , ... UR• NOT READ
J1-50 DENSE .. ,. STIFF 0 GRAB SAMPLE TRACE ..... .,. VERY DENSE 11-30 VERY STIFF X OTHER BORING NO. MW-36L .,, HARD NR NO RECOVERY
RIKI' ENVIRONMENT & BORING NO. MW-36L
INFRASTRUCTURE TEST BORING REPORT
PAGE NO: 3 OF 5
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT & INCHES
CLAY WIIl:t SAtU2 (CL}
Very dense, dry, gray and purple, mostly clay, few to little medium sand, to end of run.
I
I
'-50 Run 45-55'
8
'-55 CLAY CCL)
I Dense, moist, as above, trace sand, possible transition zone near end of run.
I
I '-60 Run 55-65'
9
I
I
C--------------------------I ' 65 eQQBLY GBAQ~t! SMt! (Se)
Loose, wet, tan to white, mostly very coarse to medium sand.
I
II Run 65-75
10
I '-70
-· OH ... , "'we:.~ ......... ,r:,c:.rENl"'.v -···-· ~ ,n """'-MPnN~NT 0'-"'RnUND WATCR AMRCV ... VERY LOOSE .. , VERY SOFT s SPLIT SPOON MOSTLY 5G-100% WO. WHILE DRILLING .. ,. LOOSE 3-4 SOFT T TUBE LITTLE 15-25"1. NE • NOT ENCOUNTERED
11-30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. ,,,. UR-NOT READ
31-60 DENSE .. ,. STIFF • GRAB SAMPLE TRACE "'" "· VERY DENSE 15-30 VERY STIFF X OTHER BORING NO. MW-36L
·" HARD NR NO RECOVERY
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RIKI' ENVIRONMENT & BORING NO. MW-36L
INFRASfRUCTURE TEST BORING REPORT
PAGE NO: 4 OF 5
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT I INCHES
PQQBLY GBAl21;12 SAND (Se)
Run 65-75' As at 65 feet BGS.
10 !continued
ontinued
-75 PQQBLY GBAl2El2 SAND (SP)
Loose, wet, tan; orange.pink, mostly very coarse to medium sand through entire run.
'-80 Run 75-85'
11
~85 eQQBLY !aBA!1~!1 SA!:l!1 (Se)
As above.
SANDY CLAY (CH) 0.5 feet from 85.0 to 85.5 feet.
'--90 Run 85-95' POORLY GRAPED SAND (SP) 12
SANDY CLAY (CH) 0.5 feet from 92.5 to 93.0 feet.
'-95
BLQWS/FT • PEN.CITY .... -w ... ~ --Net ~AMPLc '" --~~Dl'IUCNT .,_ ""'R"'11ND W.6TFR AICIBDC\I ... VERY LOOSE 0-2 VERY SOFT s SPLIT SPOON MOSTLY 150-100% WD • WHILE DRILLING
5-10 LOOSE .... SOFT T TUBE LITTI.E 15-25% NE• NOT ENCOUNTERED
11-30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. , ... UR· NOT READ
31-60 DENSE .. ,. STIFF G GRAB SAMPLE TRACE ..,.
51• VERY DENSE , .... VERY STIFF X OTHER BORING NO. MW-36L .,, HARD NA NO RECOVERY
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RIKJENVIRONMENT & INFRASI"RUCTURE
DEPTH CASING SAMPLER SAMPLE
IN BLOWS BLOWS NUMBER
FEET PER PER
FOOT & INCHES
L_ 100 Run
13
L._ 105
Run
14
L..,_ 110
1--115
1--120
-· -•u•jTV -· ... VERY LOOSE .. , .. ,. LOOSE M
11-30 MEDIUM DENSE ...
31·50 DENSE .... ... VERY DENSE! 1g.,o ...
BORING NO. MW-36L
TEST BORING REPORT
PAGE NO: 5 OF 5
SAMPLE
DEPTH
RANGE FIELD CLASSIFICATION AND REMARKS
POORLY GRADE SAND (SP)
To end of run.
eQQBLY GBAl21;12 SANl2 (Se)
Loose, wet, tan and brown, mostly very coarse to medium sand, trace gravel and clay.
95-105'
-----------------------SANDY CLAY {CH)
Dense, moist, tan to gray, mostly clay, some very coarse sand. Gravel near end of
transition.
,__ ___ --------------------CLAI (CL) 105-110' Very dense, dry, gray, mostly clay, trace sand to end of run.
End of Boring at 110 feet.
., CONSl3 L, ,. ••• .,., C 10 NT.,_ ' .... Te-
VERY SOFT • SPUTSPOON MOSTLY S0-100% WO • WHILE DRILLING
SOFT T TUBE LITTLE 15-25"'-NE· NOT ENCOUNTERED
MEDIUM 5:TIFF u UNDISTURBED PISTON FEW .. , .. UR• NOT READ
STIFF 0 GRAB SAMPLE TRACE <5 ..
VERY STIFF X OTHER BORING NO. MW-36L
HARD NA NO RECOVERY
g
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a
g
g
a
I
II
ft
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D
0
B
D
D
D
RIKTENVIRONMENT & INFRASfRUCTURE TEST BORING REPORT BORING NO. MW-37L
PROJECT: Downgradient Groundwater Remedial Action JOB NO: 202127
CLIENT: Geig~ Chemical Cor1,oration Site PAGE NO: 1 OF 3
CONTRACTOR: Boar! Long~ear LOCATION: See Site Plan EQUIPMENT USED: BQtar:rn□iQ
CORE ELEVATION: GROUND WATER DEPTH TO: CASING SAMPLER BARREL
HRS AFTER BOTTOM BOTTOM '\. / DATE START: 4/3/98 DATE WATER TYPE COMP OF CASING OF HOLE 4/3/98 SIZEID V DATE FINISH: 6.0-inch 4.0-inch
HAMMER WT .....___ / /' DRILLER: K. Bittner
HAMMER FALL / '--7 " PREPARED BY: A. O'Keefe
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 INCHES
CLAYEY SA~ 12 (SC)
Loose, moist, dark brown, tan to orange (2.5'), mostly fine to coarse sand, few to some
clay.
Run 0-5'
1
~5 CLAYEY SANQ (SC)
As above to approximately 7 feet.
------------------------!;LAY (!;Ll
Medium stiff, moist, gray to tan, mostly clay, some fine sand near end of run in clay.
~ 10 Run 5-15'
2
'-15 fQQBLY GBAQl;:12 SAtH~ (Se)
Loose, wet, tan, orange, pink/purple, mostly very coarse to fine sand, trace clay.
Continuos to 25 feet BGS.
Run 15-25'
3
~20
.... , ,.._WC::.lr:T n~••"JTV n, "~N0J SAlAPI. ID r-n"~' H •L ---••••-, 1u1.Ti::~ ·-
0-4 VERY LOOSE 0-2 VERY SOFT 5 SPLIT SPOON MOSnY 50-100% WO • WHILE DRILLING
5-10 LOOSE ,.. SOFT T TUBE LITTLE 15-25% NE· NOT ENCOUNTERED
11-30 MEDIUM DENSE •·• MEDIUM STIFF u UNDISTURBED PISTON FEW .. ,.,,. UR· NOT READ
31-50 DENSE .. ,. STIFF G GRAB SAMPLE TRACE <5% .,. VERY DENSE 16-30 VERY STIFF X OTHER BORING NO. MW-37L
•31 HARO NR NO RECOVERY
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0
D
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RIKI' ENVIRONMENT & BORING NO. MW-37L
INFRASTRUCTURE TEST BORING REPORT
PAGE NO: 2 OF 3
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 INCHES
'-20 eQQBLY GBADEO SAND ,se)
See description at 15 feet BGS.
Run 15-25
3
ontinued
'-25 eQQBLY GBAOEO SAND {Se}
Loose, wet, colors as previous, mostly fine to coarse sand. Sand not as coarse overall as
from 15-25 feet.
'-30 Run 25-35'
4
,_ 35
eOQBLY !.Bl\11~!1 Sl\~11 (Se)
As above.
' 40 Run 35-45'
5
'-45
BLQWSlEL..Jl"·'" ITV ..,, ,,,..Wt::.lr:T .,.,..NCI'-! CA .. ""''--: 1n .......... p ................ 0/_ "MUN!1 WAT"-... VERY LOOSE .. , VERY SOFT s SPLIT SPOON MOSTLY ... ,..,. WO • WHILE DRILLING .... LOOSE ... SOFT T TUBE UTTLO , .... ,. NE• NOT ENCOUNTERED
11-30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. , ... UR •NOT READ
31·50 DENSE .. ,, STIFF Q ORAB SAMPLE TRACE .... ... VERY DENSE , .. ,., VERY STIFF X OTHER BORING NO. MW-37L .,, HARD NA NO RECOVERY
I RIKI' ENVIRONMENT & BORING NO. MW-37L
INFRASTRUCTURE TEST BORING REPORT
PAGE NO: 3 OF 3
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS
FOOT I INCHES
I
CLIIY (CLl
I Very dense, dry, dark maroon to all gray (47-50 feet), mostly clay.
g
0
-50 End of Boring at 50 feet BGS.
D
H -55
B
D
-60
D
I
I -65
I
-70 I a.1 nwstFT. DP101TV 81 ' ~TENCY SAMP1c1n C-0QMPnNFNT ¾ _,.,..,.,,Nnw• ... -..... -----... VERY LOOSE .. , VERY SOFT S SPLIT SPOON MOSTLY 50-100% WO· WHILE DRILLING .. ,. LOOSE ... SOFT T TUBE LITTLE 15-25% NE· NOT ENCOUNTERED
I 11•30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW ..,.,. UR· NOT READ
31-50 DENSE .. ,. STIFF G GRAB SAMPLE TRACE en. ... VERY DENSE , .... VERY STIFF X OTHER BORING NO. MW-37L .,, HARD NA NO RECOVERY
I
0 RI.KT ENVIRONMENT & INFRASfRUCIURE TEST BORING REPORT BORING NO. MW-38L
0
I
PROJECT: Downgradient Groundwater Remedial Action JOB NO: 202127
CLIENT: Geigy Chemical Cor12oration Site PAGE NO: 1 OF 2
CONTRACTOR: Boart Longyear LOCATION: See Site Plan EQUIPMENT USED: 8Q!aSQOiQ
CORE ELEVATION:
GROUND WATER DEPTH TO: CASING SAMPLER BARREL
0
HRS AFTER BOTTOM BOTTOM I"-/ DATE START: 3/31/98 DATE WATER TYPE COMP OF CASING OF HOLE ,3/31/98 SIZEID V DATE FINISH: 6.0-inch 4.0-inch
HAMMER WT ....,.___ / / "-. DRILLER: K, Bittner
HAMMER FALL / '--/ ' PREPARED BY: R. O'Keefe
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 INCHES
eQQBLY GBA!l~C! SAtlC! (Se)
Dry, light and dark brown, orange, loose, mostly fine to coarse sand, trace silt and clay.
Possible fill material under asphalt.
I Run 0-5'
1
g
-5 eQQBLY GBAC!~C! SAili:! (Se)
I As above, more tan colored.
-10 Run 5-15' f------------------------!;LAY (!;Ll 2 Moist to wet, dark gray to black, mostly clay, some organic material present.
I
I
I -15
f------------------------eQQBLY GBAC!~C! SAtll2 (Se)
Wet, white to light gray, mostly very coarse to fine sand, coarsens to gravel at 26.5 feet.
Run 15-25'
3
I
-20
;;; c, nc"OITV c, """ol~TFNr.y ,...,. •• ..,, C Ir\ T¾ GROL••ID WATER ADDocy
0 .. VERY LOOSE 0-2 VERY SOFT s SPLIT SPOON MOSnY 50-100% WO -WHILE DRILLING
5-10 LOOSE ,.. SOFT T TUBE umE 15-25% NE -NOT ENCOUNTERED
I 11-30 MEDIUM DENSE •·• MEDIUM STIFF u UNDISTURBED PISTON FEW 5-10% UR· NOT READ
31-50 DENSE .. ,, STIFF G GRAB SAMPLE TRACE <5%
51+ VERY DENSE 18-30 VERY STIFF X OTHER BORING NO. MW-38L
+31 HARD NA NO RECOVERY
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R
0
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llllKI' ENVIRONMENT & BORING NO. MW-38L
INFRASI'RUCTIJRE TEST BORING REPORT
PAGE NO: 2 OF 2
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS
FOOT II INCHES
>--20 eQQBLY GB,M2ED SAMD (Se)
As previous, coarsening.
Run 15-25'
3 icontinued
ontinued
~25
f--- - - - - - - - - - - ------------eQQBLY GBADED SAMD WIIl::t GBA~EL (Se)
Run 25-30' As above, with gravel.
4 -------CLAY WIIl::t SAtiD (CL) -----------------
Moist, gray, dense, mostly clay, few to some fine to medium sand.
>--30 End of Boring at 30 feet BGS.
~35
~40
>--45
-· OC"SITY -· · 1 CONSISTENrv SAMP1 c ID rnMPONENT% GB.Q.V ~ ~.AIIIB.Al!_EI B FV ... VERY LOOSE .. , VERY SOFT s SPLIT SPOON MOSTLY 50-100% WO• WHILE DRILLING
5-10 LOOSE ... SOFT T TUBE LITTLE 15-25% NE-NOT ENCOUNTERED
11-30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. ,,,. UR •NOT READ
31-50 DENSE .. ,. STIFF G GRAB SAMPLE TRACE <5 ..
11+ VERY DENSE , .... VERY STIFF X OTHER BORING NO. MW-38L .,, HARD NA NO RECOVERY '
I llllKJENVIRONMENT & INFRASfRUCTURE TEST BORING REPORT BORING NO. MW-39L
I PROJECT: Downgradient Groundwater Remedial Action JOB NO: 202127
CLIENT: Geig~ Chemical Cor~oration Site PAGE NO: 1 OF 2
I
CONTRACTOR: Boart Long~ear LOCATION: See Site Plan EQUIPMENT USED: BQtasQ□ic
CORE ELEVATION: GROUND WATER DEPTH TO: CASING SAMPLER BARREL
I
HRS AFTER BOTTOM BOTTOM 1"'-/ DATE START: 3/31/98 DATE WATER OF CASING TYPE COMP OF HOLE 3/31/98 SIZE ID V DATE FINISH: 6.0-inch 4.0-inch
HAMMER WT
------
/ / '-.._ DRILLER: K. Bittner
HAMMER FALL ./ '---/ '\ PREPARED BY: , A. O'Keefe
I DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PEA PEA RANGE FIELD CLASSIFICATION AND REMARKS
FOOT 6 INCHES
I eQQBLY GBADED SAND ,se1
Dry: dark and light brown, orange; loose: mostly fine to coarse sand, trace silt.
I Run 0-5'
1
I
-5 eQQBLY GBAD!;O SA~D WIIl:t tLAY (Se)
I Wet, black to tan, loose, mostly coarse to fine sand, few clay.
Black sediments correlate to adjacent stream elevation.
I
I '--10 Run 5-15' ~ -----------------------
2 CLAY WITH SAND {CL)
Ory, gray and tan, dense, mostly clay, few fine to coarse sand, elevation correlation
I approximately the bottom of adjacent stream.
I
I ~ 15 SAND WIIH GBA~EL (Se} ----
Wet, gray and tan, loose, mostly very coarse to fine sand, little gravel, > 2cm.
I
I
I-CLAY WIIH SAND (CU -----
Run 15-25' Dry, gray and tan, very dense, mostly clay, some to few fine to coarse sand. Very haro. 3 _ Cape Fear Fonnation •
I . •
~20
.... ---we-,~ ·a .... ,,.,_W":!.lc:-T ,,.. .... ., ... , ,.. ...... , C It"! ,., JeNT¾ ts Rn' "'n WHeR ..
()-4 VERY LOOSE 0-2 VERY SOFT s SPLIT SPOON MOsnY S0-100% WO • WHILE DAJLLll~G
,S.10 LOOSE ,.. SOFT T TUBE LITTLE 15-25% NE • NOT ENCOUNTERED I 11-30 MEDIUM DENSE •·• MEDIUM STIFF u UNDISTURBED PISTON FEW ,S.10% UR· NOTAEAO
31-50 DENSE .. ,, STIFF G GRAB SAMPLE TRACE <5%
51+ VERY DENSE 1&-30 VERY STIFF X OTHER BORING NO. MW-39L
+31 HARD NA NO RECOVERY
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RIKJENVIRONMENT & BORING NO. MW-39L
INFRASTRUCIURE TEST BORING REPORT
PAGE NO: 2 OF 2
DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT & INCHES
-20 ~LA)'. WIIl:1 sa~g (kL)
As previous.
Run 15-25'
3 continued
1-ontinued
-25 End of Boring at 25 feet SGS.
-30
-35
-40
-45
a, neN~•= --~~N -·---""1n "% r,0n,1ND WATER ... VERY LOOSE .. , VERY SOFT S SPLIT SPOON MOSTLY ... ,..,. WO· WHILE DRILLING
5-10 LOOSE ... SOFT T TUBE UTILE 15·25% NE•NOTENCOUNTERED
11·30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. , ... UR -NOT READ
31-50 DENSE .. ,. STIFF G GRAB SAMPLE TRACE .... ... VERY DENSE , .... VERY STIFF X OTHER BORING NO. MW-39L ... HARD NA NO RECOVERY
I RIKJENVIRONMENT & INFRASTRUCTURE TEST BORING REPORT BORING NO. MW-40L
PROJECT: Downgradient Groundwater Remedial Action JOB NO: 202127
CLIENT: Geigy Chemical Cor12oration Site PAGE NO: 1 OF 2
CONTRACTOR: Boart Longyear LOCATION: See Site Plan EQUIPMENT USED: RQ!i!SQDiQ
CORE ELEVATION: GROUND WATER DEPTH TO: CASING SAMPLER BARREL
I
HRS AFTER BOTTOM BOTTOM i"' / DATE START: 4/1/98 DATE WATER TYPE COMP OF CASING OF HOLE 4/1/98 SIZE ID V DATE FINISH: 6.0-inch 4.0-inch
HAMMER WT "' / /" DRILLER: K. Bittner
HAMMER FALL / ---..... I/ ' PREPARED BY: A. O'Keefe
I DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 INCHES
I SANDY CLAY (Ct:D
Dense, dry, gray to tan, mostly clay, some coarse to fine sand, stiff.
I Run 0-5'
1
I ~ -----------------------~5
eQQBLY GBAQ~P SAtrn (Se)
I Loose, wet, tan orange and gray, mostly coarse grained sand, little to trace clay. Sand
is very wet 0.5 feet CLAY WITH SAND (CL) lense form 10.5 to 11 feet. (See Below)
I
I ~ 10 Run 5-15'
2
CLAY WITH SAND (CU for 0.5' • Lense of clay.
I
I
I -15 eQQBLX GBAl1~11 SAt:111 (Se)
As above
Clay lense from 16 to 16.5 feet.
I eQQBLY G!BAQl;D SAt:112 {Se)
Run 15-25' Loose, wet, tan/white, purple and pink, mostly very coarse to fine sand. Coarsening with
depth. 3
I
I -20
c, ~II '''"'T~"ll"'V e•uc, ~ ID l"'nupnNl=NT 01A r.:,ot"111Nn . - -., •H
°" VERY LOOSE 0-2 VERY SOFT s SPUTSPOON MOSTLY S0-100% WO • WHILE DRILLING
5-10 LOOSE ... SOFT T TUBE LITTl.E 15--25% NE•NOTENCOUNTERED
I 11-30 MEDIUM DENSE , .. MEDIUM STIFF u UNDISTURBED PISTON FEW 5-10% UR. NOT READ
31-SO DENSE .... STIFF G GRAB SAMPLE TRACE <5%
51• VERY DENSE 16-30 VERY STIFF X OTHER BORING NO. MW-40L •31 HARD NR NO RECOVERY
I
I IJllKJENVIRONMENT & BORING NO. MW-40L
INFRASfRUCTURE TEST BORING REPORT
PAGE NO: 2 OF 2
I DEPTH CASING SAMPLER SAMPLE SAMPLE
IN BLOWS BLOWS NUMBER DEPTH
FEET PER PER RANGE FIELD CLASSIFICATION AND REMARKS FOOT 6 INCHES
I ~20 eOQBL:Y GBAQEQ SA~Q (Se)
As previous, coarsening with depth.
I Run 15-25'
3 continued
I ontinued
I
'-25 eQQBLY GBA0El2 SAHl2 WII GBA~EL {Se)
Loose, wet, as previous with gravel.
I Run 25-32'
4 ~ -----------------------SA~l2Y CLAY (Ct:I)
I Dense, moist, mottled tan and gray, mostly clay, some coarse to fine sand.
'-30 End of Boring at 32 feet BGS.
I
I
I -35
I
I
I ~40
I
I
I '-45
---N~ITV _, SA.MDI c 1n CJlMPQHEIIT 0'----····,wA ..... R 11.9ru"~" ... VERY LOOSE .. , VERY SOFT s SPLIT SPOON MOSTLY fi0-100,,. WO • WHILE DRILLING .. ,. LOOSE ,.. SOFT T TUBE UTTI.E 15-25% NE· NOT ENCOUNTERED
I 11•30 MEDIUM DENSE ... MEDIUM STIFF u UNDISTURBED PISTON FEW .. , ... UR· NOT READ
31•50 DENSE .... STIFF G GRAB SAMPLE TRACE <5 .. ... VERY DENSE , .. ,o VERY STIFF X OTHER BORING NO. MW-40L .,, HARD NA NO RECOVERY
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••
I APPENDIXB
I WELL DEVELOPMENT LOGS
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- - - - -- -- - - -- - - - -
MONITORING WELL DEVELOPMENT LOG Page 1 of 1
Date Started (yr/moldy) 98/4/7 Date Completed (yr/moldy)
Field-·jjersonnel RANDY MORGAN
Project GEIGY
Site Name GEIGY
RUST Job# 202127.10200
Well ID# MW-34D
D Upgradient D Downgradient D Sidegradient □Source
Weather Conditions Clear/ Sunny
Air Temperature 70 •F
Date/Time
lvrfmoldv/Milita~'
98/4/7 1147
98/4/7 1152
9814/7 1157
98/4/7 1202
98/4/7 1207
98/4/7 1212
98/4/7 1217
98/4/7 1222
COMMENTS/
OBSERVATIONS
Discharge
Rate
(gpm)
1.0
1.5
Cumulative Water
Volume Purged Temp
(gal) (°C) pH
0 18 5.61
7.5 18 5.61
15 18 5.74
22.5 18 5.73
30 18 5.58
37.5 18 5.60
45 18 5.54
52.5 18 5.50
----
98/4/7 Total Well Depth (TWO)= 60.30 11100ft
From Top of Well Casing
Depth to Groundwater (DGW) = 37.38 1/100 ft
From Top of Well Casing
Length of Water Column (LWC) = TWO -DGW = 22.92 11100ft
1 Casing Volume (OCV) = LWC X 0.163 = 3.74 gallons
5 Casing Volumes = 18.68 gallons
Method of Well Development Grundfos Pum~
Total Volume of Water Removed 53 gallons
Specific
Conductivity Turbidity/Color Sand Content
(µmhoslcm) (NTU's) (%) Remarks
84 1002/ Grey 0 Surged
66 40/ Clear 0 Surged
63 101/ Cloudy 0 Surged
56 75/Cloudy 0 Pulled pump up
52 50/ Cloudy 0 Pulled pump up
53 34/ Cloudy 0 Pump on top of water
51 5/ Clear 0 Pump on top of water
50 2/ Clear 0 Pump on top of water
MHIDL 1111 om
- - -- - - - - - - ---------
MONITORING WELL DEVELOPMENT LOG Page 1 of 2
Date Started (yr/moldy) 98/4/6 Date Completed (yr/moldy)
Field Personnel RANDY MORGAN
Project GEIGY
Site Name GEIGY
RUST Job# 202127.10200
Well ID# MW-35D
0 Upgradient 0 Downgradient O Sidegradient □source
Weather Conditions Clear, Sunny
Air Temperature 65 OF
Date/Time
tvr/mo/dv/Milita .. ·'
98/4/6 1703
98/4/6 1708
98/4/6 1713
98/4/6 1718
98/4/6 1723
98/4/6 1728
98/4/6 1733
98/4/7 1000
98/4/7 1005
98/4/7 1010
98/4/7 1015
98/4/7 1020
COMMENTS/
OBSERVATIONS
Discharge
Rate
(gpm)
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
Cumulative Water
Volume Purged Temp
(gal) (°C) pH
0 18 4.99
7.5 17 5.12
15 17 5.30
22.5 17 5.37
30 17 5.36
37.5 17 5.34
45 17 5.34
45 17 4.87
52.5 17 5.02
60 17 5.21
67.5 17 5.30
75 17 5.28
98/4/6 Total Well Depth (TWD) = 42.89 11100ft
From Top of Well Casing
Depth to Groundwater (DGW) = 7.49 11100ft
From Top of Well Casing
Length of Water Column (LWC) = TWD -DGW = 35.40 1/100 ft
1 Casing Volume (OCV) = LWC X 0.163 = 5.77 gallons
5 Casing Volumes= 28.85 gallons
Method of Well Development Grundfos Pum~
Total Volume of Water Removed 60 gallons
Specific
Conductivity Turbidity/Color Sand Content
(µmhos/cm) (NTU's) (%) Remarks
58 4521 Brown 0 Surged
41 2211 Brown 0 Surged
39 4571 Brown 0 Surged
39 1701 Brown 0 Surged
38 61/ Cloudy 0 Pulled pump up (1' intervals)
39 67/ Cloudy 0 Pulled pump up (1' intervals)
38 66/ Cloudy 0 Start on lxlttom surge
56 187/ Cloudy 0 Pulled pump up (1' intervals)
35 165/ Cloudy 0 Pulled pump up (1' intervals)
33 81/ Cloudy 0 Pulled pump up (1' intervals)
33 31/ Cloudy 0 Pulled pump up (1' intervals)
32 13/ Clear 0 Pulled pump up (1' intervals)
MWDL 11/1
0/98
-------------------
MONITORING WELL DEVELOPMENT LOG (Continued)
Project
RUST Job# 202127.10200 -----------------
98/4(7 1025
98/4(7 1030
98/4(7 1035
COMMENTS/
OBSERVATIONS
Discharge
Rate
(gpm)
1.5
1.5
1.5
Cumulative Water
Volume Purged Temp
(gal) ('C) pH
82.5 17 5.25
90 17 5.24
97.5 17 5.26
GEIGY
Well ID# MW-35D
Specific
Conductivity Turbidity/Color Sand Content
(µmhos/cm) (NTU's) (%)
32 13/ Clear 0
31 111 Clear 0
31 4/ Clear 0
Page 2 of 2
Remarks
Pulled pump up (1' intervals)
Pulled pump up (1' intervals)
Pulled pump up (1' intervals)
MWDL 1111
0/98
------- - - - -- - -
I'll WW'ENVIRONMENT & l~U>I INFRASTRUCTURE
MONITORING WELL DEVELOPMENT LOG
Date Started (yr/moldy) 98/4/21 Date Completed (yr/moldy) 98/4/21 Total Well Depth (TWO) =
From Top of Well Casing
Field Pe.rsonnel DILLARD / MORGAN Depth to Groundwater (DGW)
Project GEIGY CHEMICAL CORPORATION SITE From Top of Well Casing
=
- - - - -
Page 1 of 1
106.00 1/100 ft
28.46 1/100 fl
Site Name GEIGY CHEMICAL CORPORATION SITE Length of Water Column (LWC) = TWO -DGW = 77.54 1/100 ft
RUST Job # 202127.10200 1 Casing Volume (OCV) = LWC X 0.163 = 12.64 gallons
Well ID # MW-36L 5 Casing Volumes = 63.20 gallons
D Upgradlent D Downgradient D Sidegradlent D Source Method of Well Development (a[lmdlos eump
Weather Conditions Clear, Mild
Air Temperature 72 . OF Total Volume of Water Removed 150 gallons
Discharge Cumulative Water Specific
Date/Time Rate Volume Purged Temp Conductivity Turbidity/Color Sand Content
rvr/mol""!Milita~' (gpm) (gal) (OC) pH (µmhos/cm) (NTU's) (%) Remarks
98/4/21 1706 2 0 16 5.44 35 > 1000/ tarvbrc,.,vn 2'!. suspended Silt
98/4/21 1711 12 17 5.58 32 > 1000/ orange brown 1% surging
98/4/21 1719 26 17 5.83 36 8261 It.orange brown 0% moved pump
98/4/21 1726 3 36 17 5.78 35 540/ light gray 0% moved pump
98/4/21 1732 54 17 5.74 33 550/ light gray 0% surging, moved pump
98/4/21 1737 3.5 69 18 5.84 35 1241 light gray 0%
98/4/21 1742 86 17 5.83 35 65/ fight gray 0% moved pump
98/4/21 1749 4 100 17 5.70 33 24/ dear C1'1o
98/4/21 1755 130 17 5.68 39 9/ dear 0% moved pump
98/4/21 1800 150 17 5.69 33 8/ clear 0%
COMMENTS/ 35 feet to water sustained during pumping.
OBSERVATIONS -------------------------------------------
MW D L 11/
-- - - -- - - - - ---------
MONITORING WELL DEVELOPMENT LOG Page 1 of 1
Date Started (yr/moldy) 98/417 Date Completed (yr/moldy)
Field Personnel RANDY MORGAN
Project GEIGY
Site Name GEIGY
RUST Job# 202127 .10200
Well ID# MW-37L
D Upgradient D Downgradlent D Sidegradient □source
Weather Conditions Clear I Sunny
Air Temperature 54 'F
Dale/Time
lur/mo/dv/Milita ... •'
98/417 0817
98/417 0822
98/417 0827
98/417 0832
98/417 0837
98/417 0842
98/417 0847
98/417 0852
98/417 0857
COMMENTS/
OBSERVATIONS
Discharge
Rate
(gpm)
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
Cumulative Water
Volume Purged Temp
(gal) ('C) pH
0 17 5.00
7.5 17 4.73
15 17 4.72
22.5 17 4.93
30 17 4.95
37.5 17 5.09
45 17 5.11
52.5 17 5.04
60 17 5.00
----
98/417 Total Well Depth (TWD) = 46.18 1/1001!
From Top of Well Casing
Depth to Groundwater (DGW) = 7.12 11100ft
From Top of Well Casing
Length of Water Column (LWC) = TWO -DGW = 39.06 11100ft
1 Casing Volume (OCV) = LWC X 0.163 = 6.37 gallons
5 Casing Volumes = 31.83 gallons
Method of Well Development Grundfos Pum~
Total Volume of Water Removed 60 gallons
Specific
Conductivity Turbidity/Color Sand Content
(µmhos/cm) (NTU's) (%) Remarks
54 12581 Pink 0 Surged
30 8351 Pink 0 Surged
27 803/ Pink 0 Surged
29 2091 Pink 0 pull pump up
29 721 Cloudy 0 pull pump up
30 6/ Clear 0 pull pump up
28 71 Clear 0 pull pump up
28 21 Clear 0 pull pump up
26 21 Clear 0 pull pump up
MWOL 1111
""'"
- - - - - - - - - - - - - - - --l!!!!!!!!!!I -
.. M9 ENVIRONMENT & l«.U>I INFRASTRUCTURE
MONITORING WELL DEVELOPMENT LOG
Date Started (yr/moldy) 98/4/6 Date Completed (yr/moldy) 98/4/6 Total Well Depth (TWD) =
From Top of Well Casing
Field Personnel RANDY MORGAN Depth to Groundwater (DGW)
Project GEIGY From Top of Well Casing
Page 1 of 1
28.14 1/100 It
= 9.09 1/100 ft
Site Name GEIGY Length of Water Column (LWC) = TWD • DGW = 19.05 1/100 ft
RUST Job # 202127.10200 1 Casing Volume (OCV) = LWC X
Well ID # MW-38L 5 Casing Volumes =
D Upgradlent D Downgradient D Sidegradient D Source Method of Well Development
Weather Conditions
Air Temperature
Discharge
Date/Time
lv,/mo/dv/Militarvl
98/4/6 1217
98/4/6 1225
98/4/6 1233
98/4/6 1241
98/4/6 1248
98/4/6 1252
98/4/6 1254
98/4/6 1258
98/4/6 1302
COMMENTS/
OBSERVATIONS
Rate
(gpm)
Clear/ Sunny
55 OF
Cumulative Water
Volume Purged Temp
(gal) (OC)
5 19
10 19
25 19
40 19
60 19
70 19
80 19
90 19
100 19
Total Volume of Water Removed
Specific
Conductivity Turbidity/Color Sand Content
pH (µmhos/cm) (NTU's) (%)
5.34 105 672/Brown 0
5.47 79 279/Brown 0
5.61 78 203/ Slight 0
5.66 79 711 Slight 0
5.56 76 671 Slight 0
5.58 76 44/ Slight 0
5.62 78 17/Sllght 0
5.64 78 91 Clear 0
5.66 78 7/Clear 0
0.163 = 3.11 gallons
15.53 gallons
Grnadlas 1211m12
100 gallons
Remarks
Surged
Surged
Surged
Surged
Surged
Surged
Surged
Surged
Surged
-----------------------------------------------
MW D L 11/
-----------ftl M9 ENVIRONMENT & --------l•U>I INFRASTRUCTURE
MONITORING WELL DEVELOPMENT LOG Page_1_ of_1_
Date Started (yr/moldy) 98/4/6 Dale Completed (yr/moldy) 98/4/6 Total Well Depth (TWO) = 20.29 1/100 fl
From Top of Well Casing
Field Personnel RANDY MORGAN Depth lo Groundwater (DGW) = 3.67 1/100 fl
Project GEIGY From Top of Well Casing
Sile Name GEIGY Length of Waler Column (LWC) = TWO -DGW = 16.62 1/100 fl
RUST Job # 202127.10200 1 Casing Volume (OCV) = LWC X
Well ID # MW-39L 5 Casing Volumes =
D Upgradlenl D Downgradient D Sidegradienl □Source Method of Well Development
Weather Conditions
Air Temperature
Discharge
Dale/Time
!vr/mol""IMilita~'
98/4/6 1358
98/4/6 1405
98/4/6 1409
98/4/6 1414
98/4/6 1419
98/4/6 1424
98/4/6 1429
98/4/6 1434
COMMENTS/
OBSERVATIONS
Rate
(gpm)
Clear/ Sunn:r:
60 OF
Cumulative Water
Volume Purged Temp
(gal) (OC)
7.5 17
15 17
22.5 17
30 17
37.5 17
45 17
52.5 17
60 17
Total Volume of Water Removed
Specific
Conductivity Turbidity/Color Sand Content
pH (µmhos/cm) (NTU's) (%)
5.31 134 296/Grey 0
5.27 94 113/ Slight 0
5.33 93 14/Clear 0
5.35 90 34/0oudy 0
5.38 86 24/0oudy 0
5.35 87 55/0oudy 0
5.35 86 2/ Clear 0
5.29 84 1.6/Cfear 0
0.163 = 2.71 gallons
13.55 gallons
Gc11□dfcs eumc
60 gallons
Remarks
SUrged
SUrged
Start pulling pump up in intervals
Start pulling pump up ln intervals
Start pulling pump up in intervals
Start pulling pump up in intervals
Start pulling pump up in intervals
Start pulling pump up in intervals
-------------------------------------------MW D L 11/
------------ - -- - - - -
MONITORING WELL DEVELOPMENT LOG Page 1 of 1
Date Started (yrlmo/dyl 98/4/6 Date Completed (yrlmo/dyl
Field Personnel RANDY MORGAN
Project GEIGY
Site Name GEIGY
RUST Job# 202127.10200
Well ID# MW-40L
D Upgradient D Downgradient D Sidegradient D Source
Weather Conditions Clear I Sunny
Air Temperature 70 'F
Date/Time
'"'r/mo/dv/Milita-·1
98/4/6 1542
98/4/6 1547
98/4/6 1552
98/4/6 1557
98/4/6 1602
98/4/6 1607
98/4/6 1612
98/4/6 1616
98/4/6 1621
98/4/6 1626
98/4/6 1631
COMMENTS/
OBSERVATIONS
Discharge
Rate
(gpm)
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
Cumulative Water
Volume Purged Temp
(gal) rq pH
0 17 5.12
7.5 17 5.08
15 17 5.21
22.5 17 5.24
30 17 5.28
37.5 17 5.25
45 17 5.21
52.5 17 5.29
60 17 5.27
67.5 17 5.28
75 17 5.30
----
98/4/6 Total Well Depth (TWD) = 27.76 11100ft
From Top of Well Casing
Depth to Groundwater (DGW) = 1.73 11100ft
From Top of Well Casing
Length of Water Column (LWC) = TWD -DGW = 26 03 11100ft
1 Casing Volume (OCV) = LWC X 0.163 = 4.24 gallons
5 Casing Volumes = 21.21 gallons
Method of Well Development Grundfos Pum~
Total Volume of Water Removed 75 gallons
Specific
Conductivity Turbidity/Color Sand Content
(µmhoslcm) (NTU's) (%) Remarks
67 1177/Red Surged
42 847/ Red Surged
42 959/ Red Surged
40 710/ Red Surged
40 509/ Red Pulled pump in 1 foot intervals
38 3761 Red Pulled pump in 1 foot intervals
38 78/ Lt. pink Pulled pump in 1 foot intervals
37 47/ cloudy Pulled pump in 1 foot intervals
37 16/ clear Pulled pump in 1 foot intervals
37 9/ clear Pulled pump in 1 foot intervals
37 5/ clear Pulled pump in 1 foot intervals
MWDL 1111
Gl'l>B