HomeMy WebLinkAboutSDP 2021-0016; CARLSBAD OAKS NORTH LOT 3; RESPONSE TO CITY OF CARLSBAD REVIEW COMMENTS CARLSBAD OAKS NORTH BUSINESS PARK LOT 3, CARLSBAD, CALIFORNIA; 2023-05-05Project No. 06442-32-34
May 5, 2023
Tech Contractors
3575 Kenyon Street
San Diego, California 92110
Attention: Mr. Raul Guzman
Subject: RESPONSE TO CITY OF CARLSBAD REVIEW COMMENTS
CARLSBAD OAKS NORTH BUSINESS PARK – LOT 3
CARLSBAD, CALIFORNIA
References: 1. City of Carlsbad Review Comments, Carlsbad Oaks North Business Park, Lot (1st
review), Project ID: SDP2021-0016, Memorandum dated January 31, 2023.
2. Update Geotechnical Report, Carlsbad Oaks North Business Park – Lot 3,
Carlsbad, California, prepared by Geocon Incorporated, dated May 26, 2021
(Project No. 06442-32-34).
Dear Mr. Guzman:
In accordance with your request, we have prepared this letter to respond to City of Carlsbad Review
comments (Reference 1) for the project. The City review comment pertaining to geotechnical issues
followed by our response is provided below.
Issue No. 1:The submitted “Update Geotechnical Report…” consist essentially geotechnical
conclusions and recommendations for the proposed development that are based on
previous work at the site approximately 17-years ago (2006 and 2004), and does
not include recent subsurface exploration, (except for the rippability study),
laboratory testing, etc., to assess the current condition of the compacted fill soils
underlying the subject site. While the reviewer understands that Geocon Inc.,
performed the geotechnical observation and testing during the mass grading of the
site in 2006, a stand-alone geotechnical report for the currently proposed
development is required by the City. The following comments are provided with the
intent of forming a stand-alone geotechnical report for the proposed project.
Response:As stated in Reference No. 2 and by reviewer above, we provided testing and
observation services on a full-time basis during mass grading of the property. As part
of our services, we collected soil samples during grading operations and performed
laboratory testing. Pertinent laboratory information collected during mass grading is
presented in Reference No. 2, Appendix B. The existing “subsurface” information is
comprehensive and adequate to provide recommendations for the continued
GEOCON
INCORPORATED
G E OT E CHN I CAL ■E NV I RONMENTA L ■ MA T ER I A L S
6960 Flanders Drive ■ Son Diego, California 92121-297 4 ■ Telephone 858.558.6900 ■ Fax 858.558.6159
Project No. 06442-32-34 - 2 - May 5, 2023
development of the property. In this regard, no additional subsurface exploration is
required. We opine that Reference No. 2 is a stand-alone geotechnical report.
Issue No. 2:Please provide a copy of the “Final Repot of Testing and Observation Services
during Site Grading, Carlsbad Oaks North Business Park – Phase I…”by Geocon,
Inc., dated August 30, 2006, that reports the previous mass grading activities that
established the subject lot and has reportedly been used as the basis for the
conclusions/recommendations provided in the “Update Geotechnical Report…”.
Response:We will provide an electronic copy to Spear & Associates, Inc. for submittal.
Issue No. 3:Please review the most current revision of the grading plans for the proposed
project prepared by Spear & Associates, Inc. and provide any updated
conclusions/recommendations as necessary. Additionally, as the submitted
“Update Geotechnical Report, Carlsbad Oaks North Business Park – Lot 3…”
references a now antiquated version (2019) of the California Building Code, please
update sections of the report as necessary to address the current 2022 version of
the California Building Code that has been adopted by the City of Carlsbad.
Response:Spear & Associates, Inc. to submit our update to Reference No. 2.
Issue No. 4:Please provide the Geologic Cross-Sections A-A’, B-B’, and C-C’ showing all the
information currently shown on the sections plus the limits/depth of the
recommended undercutting for the areas of the property that are underlain by
granitic rock.
Response:The attached revised Figures 2 and 3 (included in update report to Reference No.
2) show approximate limits of recommended building pad undercut.
Issue No. 5:Please provide a statement addressing the potential impact of the project on
adjacent properties. Please include a discussion on the potential impacts to
adjacent properties from the possible need to locally excavate (blast?) the granitic
rock underlying the site to establish proposed pad grades and/or undercut the
granitic rock to address cut/fill transition conditions.
Response:We opine that potential impact of the subject project grading to adjacent properties
is low provided geotechnical recommendations presented in Reference No. 2 are
followed. If blasting is required, the grading/blasting contractor is required to
follow City of Carlsbad Engineering Department Blasting Policy (No. 15) and
address any impacts to adjacent improvements.
Issue No. 6:Please describe the approximate range of fill thickness beneath the existing site
grades, and the approximate thickness of fill that will exist beneath the proposed
buildings subsequent to the recommended site grading for the project.
Response:The attached figures obtained from Reference No. 2 present the requested
information.
Issue No. 7:Please provide subsurface exploration within areas of the property underlain by
existing fill as necessary to determine and assess the current subsurface soil and
groundwater conditions at the subject site with respect to the proposed development
(see comment #8 through 11 below).
Project No. 06442-32-34 - 3 - May 5, 2023
Response:As stated in our response to Issue No. 1, the existing “subsurface” information
presented in Reference No. 2 is comprehensive and adequate to provide
recommendations for the continued development of the property. Please also see
Sections 4 and 6 of update geotechnical report and attached figures for subsurface
conditions.
Issue No. 8:As there is no recent subsurface exploration to access the present condition of the
existing fill soils provided in the “Update Geotechnical Report…,” please justify
the geotechnical parameters (strength, expansion potential, sulfate exposure, etc.)
that are provided in the report for the soils that will support both the building and
parking/driveway areas.
Response:Please see response to Issue Nos. 1 and 7. In addition, and as discussed in Sections
8.2.2 and 8.2.3 of Reference No. 2, we will perform additional expansion potential
and water-soluble sulfate testing after completion of grading operations to evaluate
the soils present within the upper approximately 3 feet of ultimate design finish
elevation. As is standard for development of a property, we will collect soil samples
and perform necessary laboratory testing during grading to check our geotechnical
design parameters presented in Reference No. 2. If necessary, we will provide
revised recommendations based on information collected during grading.
Issue No. 9:As there is no recent subsurface exploration and associated laboratory testing
(consolidation) provided in the “Update Geotechnical Report…,” with respect to
the present condition of the existing fill soils, please provide the basis for the values
of total and differential settlement for the proposed development that are provided
in the report.
Response:Please see Response to Issue Nos. 1 and 7.
Issue No. 10:As there is no recent subsurface exploration and associated laboratory testing
provided in the “Update Geotechnical Report…,” please provide the basis for the
R-values recommended for pavement design that are provided in the report.
Response:Please see Section 8.11.1 of Reference No. 2. The pavement sections are
PRELIMINARY and NOT for construction. The final pavement sections will be
provided after the grading operations are completed, subgrade soils are sampled,
and laboratory resistance value (R-Value) testing is performed on the soil samples
collected as is industry standard.
Issue No. 11:As there is no recent subsurface exploration to assess the present condition of the
existing fills soils provided in the “Update Geotechnical Report…,” please provide
the basis that only the upper 12 inches of the existing subgrade of the subject lot
requires remedial grading prior to fill placement or other construction.
Response:Our recommendations are based on field observations during the ultimate
development of Carlsbad Oaks North Business Park Lots 4, 5, 13, 14, 20, 23 and
25 that consisted of same soil conditions (granular soils) as Lot 3. In rare instances,
remedial grading may need to be extended deeper than 12-inches. This is why the
statement in Section 8.3.5 of Reference No. 2 states “The actual extent of remedial
grading should be determined in the field by the geotechnical engineer or
engineering geologist”.
Project No. 06442-32-34 - 4 - May 5, 2023
Issue No. 12:With respect to the laboratory testing that was reportedly previously performed as
part of the mass grading of the site 2006 (Appendix B of the “Update Geotechnical
Report…”), please indicate and show on a map the general locations and
depth/elevations within the subject property that the samples for direct shear,
expansion index, and soluble sulfate tests were taken.
Response:Please see response to Issue Nos. 1, 7 and 8. Also, please see Section 8.2.2 of
Reference No. 2 for discussion regarding fill soil zone represented by expansion
potential (EI) and water-soluble sulfate laboratory test results presented in
Appendix B.
Issue No. 13:The text of the “Update Geotechnical Report…” indicates that the foundation
recommendations are based on soils with an Expansion Index less than 50. As soils
with expansion index (EI) over 20 are considered expansive and require mitigation
in accordance with Sections 1803.5.3 and 1808.6 of the 2022 CBC, please provide
recommendations as necessary and a statement that the proposed foundation
system/slabs on-grade will meet the requirement of Section 1808.6 of the 2022
California Building Code. Please indicate the specific method of Section 1808.6
(1808.6.1 through 1808.6.4) that is being recommended to satisfy the code
requirement (for soils with an EI between 20 and 50), and provide the Effective
Plasticity Index and any other parameters for foundation design in accordance with
WRI/CRSI Design of Slab-on-Ground floors or a post-tensioned design in
accordance with PTI DC 10.5 as necessary to address section 1808.6.2 for slabs
on-ground.
Response:The foundation recommendations presented in Reference No. 2 consider the
anticipated soils that may be at ultimate grade and are typical industry standard
recommendations. We have not been provided with the project foundation plans for
our review or been contacted by the structural engineer for additional information.
Section 1808.6.2 of the CBC permits the structural engineer to analyze and design
such slabs by other methods than the two referenced above.
Issue No. 14:Please clarify the depth of recommended undercutting below proposed FS for
proposed hardscape/parking areas that are underlain by granitic rock.
Response:Per Section 8.3.10 of Reference No. 2, we are not requiring that granitic rock be
undercut for hardscape/parking areas as these improvements can be constructed on
bedrock. We state that the owner will determine the need to undercut these areas to
facilitate construction of planned improvements.
Issue No. 15:The seismic design parameters presented in the report reference the 2019 CBC;
please revisit and revise to reference the currently adopted 2022 CBC and revise
the values of the parameters if necessary.
Response:Please see response to Issue No. 3.
Issue No. 16:Please provide slope setback recommendations for the proposed structure and
improvements per Section 1808.7.2 of the 2022 California Building Code that
address the up to approximately 50’ high descending slopes that bound the west
and south sides of the project area.
Response:The existing descending fill slope with maximum height of 50 feet is located along
the southwest portion of the property. At this location, the proposed building is
Project No. 06442-32-34 - 5 - May 5, 2023
located at least 80 feet from the top of slope and exceeds the minimum CBC
setback.
Issue No. 17:Please assess the potential impact of the proposed bio-filtration basin at the top of
the descending fill slope at the southwest portion of the property on the stability of
the slope and provide recommendations to address as necessary.
Response:Per Section 8.13.3 of Reference No. 2, the project bio-filtration basins should be
lined with an impermeable liner to mitigate slope instability resulting from water
infiltration.
Issue No. 18:Please provide the OSHA Type Soil (A, B, or C) and associated temporary slope
inclination (H:V) that the construction plans and contractors should adhere to
during the design and construction of the development.
Response:Please see Section 8.3.11 of Reference No. 2. In general conformance with
Occupation Safety and Health Act (OSHA) Trenching and Excavation Safety, the
site soils may be considered Soil Type B. The soil type should be revised to Soil
Type C if seeps are encountered along the face of excavations. In accordance with
OSHA, it is the responsibility of the contractor and their competent person to
determine the soil type during construction to ensure all excavations, temporary
slopes and trenches are properly constructed and maintained in accordance with
applicable OSHA guidelines, in order to maintain safety and the stability of the
excavations and adjacent improvements.
Issue No. 19:Please provide a complete summery list of the geotechnical observations/testing
services that should be performed as part of the construction of this proposed
development.
Response:As indicated is Sections 8.3.3 and 8.8.7 of Reference No. 2., we will provide testing
and observation services on a full-time basis during grading. We will check building
and retaining wall foundation excavations prior to placement of rebar and concrete.
We will provide our services on a requested basis during trench backfill, wall
backfill and construction of surface improvements.
Should you have any questions regarding this letter, or if we may be of further service, please contact
the undersigned at your convenience.
Very truly yours,
GEOCON INCORPORATED
Emilio Alvarado
RCE 66915
David B. Evans
CEG 1860
EA:DBE:am
Attached: Figures 2 and 3
(e-mail) Addressee
3
2
0
33
0
34
0
35
0
36
0
37
0
3
1
0
3
2
0
33
0
34
0
35
0
360
3
2
5
3
1
5
31
5
32
5
3
3
5
34
5
355
365
36
5
35
5
34
5
33
5
BUILDING "A"
BUILDING "B"
BUILDING "C"
2
2
2
2
22
2
2
22
3
1
11
1
1
3
3
3
3
3
3
3
3
1
1
1
1
1
1
1 1
1 1 1
1
1
1
1
1
1
1 1
1
1
3
3
3
3
3
4
4
4 44
4
4
4
5
5
66
6
6
6
7 7
6
6
7
6
3
4
T-8
Kgr
T-7
T-9T-1
T-2
T-5
T-3
T-4
T-6
295
273
350
343
324
304
317
304
312
299
307
296
297
284
276
269
260
270
284
298
309
312
296
298
299
284
271 269
258
290
308
Qcf/
Qcf/
Qcf/
Qcf/
Kgr
Kgr
C'
C
B'
BA
A'
Qcf/
PROPERTY BOUNDARY
6960 FLANDERS DRIVE - SAN DIEGO, CALIFORNIA 92121 - 2974
PHONE 858 558-6900 - FAX 858 558-6159 SHEET OF
PROJECT NO.
SCALE DATE
FIGURE
Plotted:05/05/2023 2:31PM | By:JONATHAN WILKINS | File Location:Y:\PROJECTS\06442-32-34 (Con Lot-3)\SHEETS\06442-32-34 GeologicMAP.dwg
GEOTECHNICAL ENVIRONMENTAL MATERIALS
1" =
GEOLOGIC 1AP
CARLSBAD OAKS NORTH BUSINESS PARK - LOT 3
CARLSBAD, CALIFORNIA
30' 05 - 05 - 2023
06442 - 32 - 34
1 1 2
252
257
T-9
GEOCON LEGEND
........COMPACTED FILLQcf
........APPROX. LOCATION OF EXPLORATORY TRENCH EXCAVATIONS
........APPROX. LOCATION OF GEOLOGIC CONTACT
........APPROX. LOCATION OF GEOLOGIC CROSS-SECTIONC C'
........GRANITIC ROCK (Dotted Where Buried)Kgr
........APPROX. BOTTOM ELEVATION OF COMPACTED FILL
........APPROX. ELEVATION OF CANYON SUBDRAIN
........APPROX. LOCATION OF EXISTING CANYON SUBDRAIN
........APPROX. LIMITS OF BUILDING PAD UNDERCUT
----------·v1------v1------v1-------v1·-----------vl vi vi vi v1---------vl
" _ ... ,ooP
__________ ..--:-r--s,--------':;---------<;-'+-9
------" ----------.S 'f
I " 11 I 11r-++--
l ,sl i I I"''°" f.G 1 !3.?4,4ll FS
I
32 .45 FL \
32 .80 TC l
32 .JO FL \ ~ VJ
LL
I
I
I
\1
!\
00
\l
I
I
I
I
I
I
ff:= 3.0
p[a 22.2f
I
I
I
I
I
2.6} TC
2. 10 Fl
• •
SJ--~-~ :/
s :· •• :·•: =···
J~::::::----'f--•••••• :: ~ _j __ ,,___.--··~···
322.20 TC '\ J _j
~""-321.70 FL '\
\
\
~
~~~·.·.~~ ~
~,•,·~···~·· •• ·~·~·
EX. 12" ?VC WATER w--------vl-------'vJ EX-12" P\/C WATE.R
EX. 11,' CMLC W'1\;j•--------'vl-------', EX. 16" CMlC WATER,, _v1::::::::::~-•v1-------·v1--------lll---'vl ________ \_ '\,l_.1.--~!.-------vl----
w w-v1------vl ____ _,__,, __ -111--1----v11---' __ -1--v1--1-------\,I----
W1RPTM-LooP ' ' '" '
O:. 8" P\/C SE.W~ ---~SM)-H ___ _.-;;-~17i-------"' <' ' ~ ~e, ,o
O
,S
-:,-=-'-'==--s------+----s-------'-';---'"'N\-__cc\--4:W:--l------~~-l--_s,sMll/oHl',.---"·N1----_Q""-''"''·--''iO"_l'e;~c:_;s~E•~ERS -
~ r5
Rvl -----Rvl _____ 311 ,001c
~
I
I
I
8" FIRE SPRIN LER ?OC \ FIRE R/S[R ROOM ~
[B
0
I
6. I
I
Rvl _____ .,JX· B" P"JC >fi/1Jrn
-~t·,~~~~':::
2-3,62· TG-~:32l'\1l====:zyic[06f :ti2JF.L~ -~~:..----, ~.--·-·. -
--=---......-=--.. -
I ~
I
\
~1CT~-t~,~~t:,to{·(8 ___ '~,~~~~\~1•~~~~~~%~1:[)¾:~~;~.~~-~-~-'_,_,,,~,-,-,-c-_:_=_=_=_ii-~~~~~t,;~il
0
if=r----:-1'~\..~q~===~~JOL ix I I
~
\ l~~N
I 6,
~~~I s ~ 1 J --------\ i--
\,, ~
32200 TC ~ l\1='==::7~~J I ~I
321.50 FS \ "' r,~rc x O =d~~L/
321.45 rs \
0
f;li Q
SJ
"i
SJ
\.. ~I ~-~ ~Q ~---t--s SJ
320.85 TC
321.00 TC
Jr-50 F'S
X
\~1 1
321.75 TC
J21.25 FL
321.30 TC
J]0.80 Fl. J2if40 TC ~
p ~ \
' ~ ..---:::
----· _--_-_--+---~100--------~
~------------280
I 3\ 1-,.vJ
F
"i
\ \--__ JI
f----___JI I
o·
-0
30'
SCALE
...
c::::J
I\
D
g~gcoN
ORATED
■
~ ◄
60' 90' 120·
1" 30' (On 36x24}
■
EL
E
V
A
T
I
O
N
(
M
S
L
)
EL
E
V
A
T
I
O
N
(
M
S
L
)
DISTANCE (FEET)
SCALE: 1" = 30' (Vert. = Horiz.)
GEOLOGIC CROSS-SECTION A-A'
270
300
330
360
390
270
300
330
360
390
0 30 60 90 120 150 180 210 240 270 300 330
EL
E
V
A
T
I
O
N
(
M
S
L
)
EL
E
V
A
T
I
O
N
(
M
S
L
)
DISTANCE (FEET)
SCALE: 1" = 30' (Vert. = Horiz.)
GEOLOGIC CROSS-SECTION B-B'
270
300
330
360
390
270
300
330
360
390
0 30 60 90 120 150 180 210 240 270 300 330 360
EL
E
V
A
T
I
O
N
(
M
S
L
)
EL
E
V
A
T
I
O
N
(
M
S
L
)
DISTANCE (FEET)
SCALE: 1" = 30' (Vert. = Horiz.)
GEOLOGIC CROSS-SECTION C-C'
240
270
300
330
360
390
240
270
300
330
360
390
0 30 60 90 120 150 180 210 240 270 300 330 360 390 400
A A'
C
B B'
C'
EXISTING GRADE
?
?
Kgr
Kgr
Kgr
Qcf
PROPOSED DRIVE
ISLE PROPOSED BLDG C PROPOSED DRIVE
ISLE
EXISTING WHIPTAILLOOP WEST (ROW)
PL
PROPOSEDRETAININGWALL
PL
PROPOSED GRADE
T-6(Projected Approx.
10' North)
T-2(Projected Approx.40' South)T-9(Projected Approx.15' South)
Kgr
Qcf
Kgr
Qcf
EXISTING GRADEPROPOSED GRADE
PL
PROPOSED DRIVE ISLE PROPOSED BLDG B PROPOSED DRIVEISLE
PROPOSEDBIO-BASIN
EXISTING WHIPTAILLOOP WEST (ROW)
PL
????
?
Kgr
Qcf
Qcf Qcf
Kgr
Kgr
?
?
?
?
EXISTING GRADE
PROPOSED GRADE
EXISTING CANYONSUBDRAIN
PL PROPOSEDBIO-BASIN PROPOSEDDRIVE ISLE PROPOSED BLDG A
PROPOSED
DRIVE ISLE
PROPOSED
BIO-BASIN
EXISTING WHIPTAILLOOP WEST (ROW)
PL
6960 FLANDERS DRIVE - SAN DIEGO, CALIFORNIA 92121 - 2974
PHONE 858 558-6900 - FAX 858 558-6159 SHEET OF
PROJECT NO.
SCALE DATE
FIGURE
Plotted:05/05/2023 2:47PM | By:JONATHAN WILKINS | File Location:Y:\PROJECTS\06442-32-34 (Con Lot-3)\SHEETS\06442-32-34 Cross-Section.dwg
GEOTECHNICAL ENVIRONMENTAL MATERIALS
1" =
GEOLOGIC CROSS - SEC8ION
CARLSBAD OAKS NORTH BUSINESS PARK - LOT 3
SAN DIEGO, CALIFORNIA
30' 05 - 05 - 2023
06442 - 32 - 34
1 1 3
T-9
?
GEOCON LEGEND
........COMPACTED FILLQcf
........APPROX. LOCATION OF EXPLORATORY TRENCH EXCAVATION
........APPROX. LOCATION OF GEOLOGIC CONTACT (Queried Where Uncertain)
........GRANITIC ROCKKgr
........APPROX. LIMITS OF BUILDING PAD UNDERCUT
-I I I I I I I I I I -
-I I -~
I_ -I I -~
I_ -I I_
-j--+---+ r: +----j--+---+ +----j--+-H +---I-_J -I--~ -1 r ,--~ ----r-I ----
I f--I I I I I I -I I -I I ' I I ' ' -I I I I I I I I I LI 11-I I 1 ----~
-I_ --+ t -I --+ I -I ---+ -I -
-+-,_ - --,_ +--
-~
~.... +-
-~ T +I t I-1T --,-. r I i-I i, I I I I I I II I ' ' ' ' ' I -I , -I I ' I I I I I I I I I , ...... I I I ,_ -I -1 -=-v-r ~ = ~ ~ I q --.... -'1 -":'f -=t - -+---F -
+--= ----I-_ "--I I I I I ,-+--t-' ---...... I I r+--I IT' --I r , ------~-1T,-
-~' I I I I I I I f--I I I I I I I I I I
-I~ ·~ I
-,-I - -
I -,--,-- --,-I -,-I -
-+-R +----j--+-R +----j--+-R +---4 --4 ---4 ---4 --4 ---4 ---4 -
-__u_ _u_ J u_ --U m : L _u: I llD I I I-U-JU---Um I I L _u: I llD I I U-JU---Um : I L _u: I UDU---
I
I I ,-I I = I I ,-I I = I I
rr i H T -,_ ,_ -
1:-m I; t ,_ j-
I TT -t--TT -1:--I; t ,_ j-
I TT -t--TT -1:-I I I ;TT :-rr r 11 -I I , I I I I I , I I I -UL __ I I l ' I I I ' I l I I I I l I I I ' I I I : I I u L_J ~ I I I I ' I J 11'
I I ,_ t--t t t -t 1 t H t-: m+ l r,j l ,_ m, i-1 h 1:-1j--f-k 1:rr1~ I :TT1 I rt TTI :-,rt TI _j_ -mm rt•-1TT1 :TT1 -TTTTT -I . I -U I I I I I I I : I I _UI llill I I IL I 1\1 I I : I I +-,_lil'W _j -----i -_--+ i rf V '
t-
-_J ,..._ -t i t
i1ffi1 f 1 f l 11-111TTt
y -~ ----'CJ-,_ -,. I -,-,-
I ffi, I TTTirrl--•
TITTi' I -lmi, TTTT1 -r -I ,--TTTI I -, 1 I I I I I I I ' f--
JlLWJl 1 I I ' I I ' I --t I lilll I L JJ: I JJJI I _JI j__ : I : I lillil-+--I 1 f
t -t t 1 I 1 ~ ]
t I I
f l I I =l I J I l I I : --
-f--+ j -+ r -
I_,_ I_,_ I__ +-I-+ _ I_,_ I_,_ I__ +-I-+ _ I_,_ I_,_ I __ -I I -,---j--+-~ +-----j--+-~ +-----j--+-~ +-
--~ I T I ---+-I T I --~ I T I --~ I --I -I-+-T I ---+-I T I --~ I T I --~ I --I -I-+-T I -H I --4 I I I I I H -+-I
~I--+ 1-h: ~ I I --+-----< I I I I I I I I I I f ~ 7 I ,---
-_ ~:=7~~,~= =7 ~-=7r 1 0 I 17 1=1[ ~H 17 11= C7
-1-1--I--t t=l----+-1-+ I l +-1 I-+ F H +-1-+ - -
-t-+-+-+-t-++-+--+-+-+-+-i-+-+-+-+-+--+--++-+-+-+-tf----+-+-+-+
I I +-I-+ I +-I-+ I I +-I-+ I I +-I-+ I +-I-+ I +-I-+ I I +-I-+ I I +-I-+ I -f-~ =-=+ ~ ----r---I I ___.. I~:= =f= -s=±::f=a=i==t~~i=±=±=tii±±=as=±±tti==f~±F±=±=ttt±±=a=i==~~~~~,-~s=±±=a=f=i=t=EiE -j
~~r=t=L-+--+-----1=:::t=l--H ---+---+--+-, ----t-+--+---+-+--+-+---+----+-+-+-+-+--+--+-+--+-+---+----+--+ -
t= r=I I
1::::: =l E -----
~ =+ l= § -§ -
E =l --
-----
---+ -- ---
' ----t-
t-----
+-+-+---I-:==
' ' f--
i----------
_ ,_ _ , _ _, _
l
GEOCON
I NCORPORATED
e __ .....__ ____
■ ■