HomeMy WebLinkAboutCT 15-11; YADA FAMILY FARM SUBDIVISION; FINAL SOILS REPORT; 2020-05-13SUMMARY OF GEOTECHNICAL OBSERVATION AND
TESTING DURING GRADING,
UNDERGROUND UTILITY TRENCH BACKFILL,
SIDEWALK AND STREET SUBGRADE,
STREET BASE GRADE AND ASPHALT TESTING,
AND RETAINING WALL BACKFILL
FOR PROPOSED 12-LOT SUBDIVISION,
4.57 ACRES, 1835 BUENA VISTA WAY
CARLSBAD, SAN DIEGO COUNTY, CALIFORNIA 92008
FOR
CALIFORNIA WEST CONSTRUCTION, INC.
927 PRIESTLY DRIVE, SUITE 110
CARLSBAD, CALIFORNIA 92008
W.O. 7377-B/C/D/E/F-SC MAY 13, 2020
Geotechnical C Geologic C Coastal C Environmental
5741 Palmer Way C Carlsbad, California 92010 C (760) 438-3155 C FAX (760) 931-0915 C www.geosoilsinc.com
May 13, 2020
W.O. 7377-B/C/D/E/F-SC
Carlsbad Buena Vista 12 L.P.
California West Construction, Inc.
927 Priestly Drive, Suite 110
Carlsbad, California 92008
Attention:Mr. Matt Howe
Subject:Summary of Geotechnical Observation and Testing During Grading,
Underground Utility Trench Backfill, Sidewalk and Street Subgrade, Street
Base Grade and Asphalt Testing, and Retaining Wall Backfill for
Proposed 12-Lot Subdivision, 4.57 Acres, 1835 Buena Vista Way, Carlsbad,
San Diego County, California 92008
Dear Mr. Howe:
In accordance with your request and authorization, GeoSoils, Inc. (GSI) is providing this
summary of geotechnical observations and testing during grading within designated lots,
underground utility trench backfill, sidewalk and street subgrade, street base grade and
asphaltic concrete, and retaining wall backfill for Proposed 12-Lot
Subdivision, 4.57 Acres, 1835 Buena Vista Way, Carlsbad, San Diego County, California.
Unless specifically superceded herein, the conclusions and recommendations contained
in the project geotechnical reports, prepared by this firm (see Appendix A), remain
pertinent and applicable, and should be appropriately implemented over the life of the
development, and for any future development projects within the subject property.
GRADING (GSI PHASE B)
Grading under the purview of this report commenced in early October 2018, and with the
exception of Lots 4 and 5 (which were left low), was substantially completed in mid-late
October 2018 (see GSI, 2018a), under the full-time observation and testing services of GSI.
Lots 4 and 5 were utilized to dispose of excess fill materials generated during fine grading
and foundation construction throughout the remainder of the subdivision. Grading on
Lots 4 and 5 commenced on or about April 22, 2019 and was generally completed on
June 17, 2019 (see GSI, 2019). For this portion of grading, GSI was onsite on an
as-needed basis, as solely determined by the client. During grading, line and grade was
the responsibility of others, and not GSI. The fill soils were generally cleansed of organic
matter and deleterious debris, placed in relatively thin lifts, moisture conditioned and mixed
GeoSoils, Inc.
California West Communities W.O. 7377-A-SC
Yada Family Farm Subdivision, Carlsbad May 13, 2020
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to at least optimum moisture content, and then compacted to at least 90 percent of the
laboratory standard (ASTM D 1557), where tested (see Table 1). The locations of the
compaction testing within the limits of grading under the purview of this report, as well as
testing previously reported by GSI (2018a), are shown on Plates 1 and 2 (Field Density Test
Location Maps). The reader is referred to GSI (2018a and 2019) for a more detailed
description of site grading.
UTILITY HOUSE CONNECTIONS BACKFILL TESTING (PHASE C)
GSI performed observations and field density testing during utility house connections for
utilities from street Right-of-Way (ROW) to the individual lot service connection. Soil backfill
materials were moisture conditioned and mixed to at least optimum moisture content,
placed in relatively thin lifts, and mechanically compacted. Field density tests (see
Table 1), indicated that the trench backfill materials were compacted to at least 90 percent
of the laboratory standard (ASTM D 1557), where tested.
UTILITY BACKFILL TESTING (PHASE D)
GSI performed observations and field density testing during the sewer, water, storm drain,
and joint utility backfill placement. Specifically, GSI performed observations and field
density testing during the backfill placement of the sewer main trenches within Yada Place
and Buena Vista Way ROW and sewer crossing at Valley Street. Also, GSI performed
observations and field density testing during the backfill placement of the water main
trenches within Yada Place, Buena Vista Way Right-of-Way, existing utility connection, and
water crossing at Valley Street. In addition, GSI performed observations and field density
testing during the backfill placement of the storm drain utility trenches within
Lots 9 through 12 and Valley Street. GSI performed observations and field density testing
during the backfill placement of the joint utility trenches within Yada Place and Buena Vista
Way ROW as well.
Soil backfill materials were moisture conditioned and mixed to at least optimum moisture
content, placed in relatively thin lifts, and mechanically compacted. Field density tests
indicated that the trench backfill materials were compacted to at least 90 percent of the
laboratory standard (ASTM D 1557), where tested. The upper 12 inches of the utility
backfill materials (i.e., subgrade) were found to have been compacted to at
least 95 percent of the laboratory standard (ASTM D 1557), where tested. Some Class II
aggregate base materials were placed near the top of the water trenches. Field density
tests (water line) indicated that the aggregate base materials were moisture conditioned
to at least optimum moisture content, placed in relatively thin lifts, and mechanically
compacted. Field density tests of the subgrade/aggregate base indicated at
least 95 percent of the laboratory standard (ASTM D 1557), where tested (see Table 1).
GeoSoils, Inc.
California West Communities W.O. 7377-A-SC
Yada Family Farm Subdivision, Carlsbad May 13, 2020
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DRIVEWAY APPROACH RAMP AND SIDEWALK SUBGRADE, DRIVEWAY AND
AGGREGATE BASE OBSERVATION AND TESTING (GSI PHASE E)
GSI performed field density testing on the driveway approach ramp and sidewalk
subgrades located within the City of Carlsbad ROW. Where tested, the driveway approach
ramp subgrade was moisture conditioned to at least optimum moisture content and
compacted to at least 95 percent of the laboratory standard (ASTM D 1557). Field density
testing also indicated that the sidewalk subgrade was moisture conditioned to at least
optimum moisture content and compacted to at least 90 percent of the laboratory standard
(ASTM D 1557), where testing was performed. Testing is summarized in Table 1.
STREET SUBGRADE, CURB AND GUTTER, AND ASPHALTIC CONCRETE
TESTING (GSI PHASE E)
GSI performed field density testing on subgrade materials for the street on Yada Place,
Buena Vista, and Valley Street, curb and gutter subgrade testing on Yada Place, and an
ADA ramp at McCauley. In addition, GSI performed field density testing on asphaltic
concrete (AC) on all street areas. Where tested, the AC compacted to at least 95 percent
of the laboratory standard (ASTM D 1557) wet density (see Table 1).
RETAINING WALL BACKFILL TESTING (GSI PHASE F)
GSI performed field density testing on retaining wall backfill materials for the site basin and
adjacent to Lot 1. Backfill material was moisture conditioned to at least optimum moisture
content prior to placement. Where tested, the backfill materials were compacted to at
least 90 percent of the laboratory standard (ASTM D 1557) wet density (see Table 1).
FIELD TESTING
1.Field density tests were performed using the nuclear (densometer) method
(ASTM D 6938-10 [Procedure A]) and the sand-cone method ASTM D 1556.
The compaction test results are presented on the attached Table 1. The
approximate locations of field density tests performed previously, as well as during
the remaining site grading within Lots 4 and 5, are shown on Plates 1 and 2.
2.Field density tests were taken at periodic intervals and selected locations to check
the compactive efforts provided by the contractor. Where test results indicated less
than optimum moisture content, or less that the necessary relative compaction, the
contractor was notified and the area was reworked until retesting indicated at least
optimum moisture and the specified relative compaction was achieved.
GeoSoils, Inc.
California West Communities W.O. 7377-A-SC
Yada Family Farm Subdivision, Carlsbad May 13, 2020
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3.Visual classification, supplemented by laboratory testing, was the basis for
evaluating which maximum density value to use for a given density test.
4.Field testing and observations were performed on an as-needed, part-time basis,
as solely determined by the Client. GSI relied on the Client for notification of site
earthwork.
LABORATORY TESTING
Maximum Density Testing
The laboratory maximum dry density and optimum moisture content for each of the major
soil types, encountered during earthwork construction was evaluated in general
accordance with test method ASTM D 1557. The following table presents the results.
SOIL TYPE
MAXIMUM DENSITY
(PCF)
MOISTURE CONTENT
(PERCENT)
A - Reddish Brown Silty SAND 130.6 8.1
B - Reddish Brown Silty SAND 130.6 8.5
C - Class II Aggregate Base 135.7 7.3
D - Crushed Miscellaneous Base (CMB)116.1 12.3
AC - Asphaltic Concrete (wet density
from plant)
145.9 N/A
Expansion Index
Expansion index (E.I.) testing was performed on soils exposed near finish grade. Testing
of expansion potential classification was performed in general accordance with
ASTM D 4829. The results of expansion testing are indicated in Table 2.
Corrosion (Saturated Resistivity, pH, and Soluble Sulfates, and Soluble Chlorides)
Previous laboratory testing indicates that the tested sample of the onsite soils is neutral
with respect to soil acidity/alkalinity, is moderately corrosive to exposed, buried metals
when saturated, presents negligible sulfate exposure to concrete, and is slightly elevated
with respect to chlorides. Reinforced concrete mix design for foundations, slab-on-grade
floors, and pavements should minimally conform to “Exposure Classes S0, W0, and C1”
in Table 19.3.1.1 of ACI 318-14, as concrete would likely be exposed to moisture. It should
be noted that GSI does not consult in the field of corrosion engineering. Therefore,
additional comments and recommendations may be obtained from a qualified corrosion
GeoSoils, Inc.
As defined in the California Business and Professions Code, Division 3, Chapter 15, Article 5,1
Section 8770.6.
California West Communities W.O. 7377-A-SC
Yada Family Farm Subdivision, Carlsbad May 13, 2020
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engineer based on the level of corrosion protection required for the project, as determined
by the project architect and/or structural engineer.
CONCLUSIONS
The work performed to date appears to be in general conformance with the preliminary
recommendations contained in GSI (2018b and 2015), GSI field recommendations,
Appendix Chapter J of the 2016 CBC (CBSC, 2016) and with the grading guidelines of the
City of Carlsbad, California, from a geotechnical standpoint. Field testing indicates that fills
placed under the purview of this report have been minimally compacted
to 90 or 95 percent of the laboratory standard (ASTM D 1557), where tested. Based on the
observation and compaction testing performed during grading, GSI concludes that
engineered fills, placed during site grading, are suitable for their intended use from a
geotechnical perspective. Foundation design should adhere to GSI (2018b).
RECOMMENDATIONS
The following recommendations should be incorporated into the balance of site
development.
•Surface drainage will need to be periodically checked and maintained by the
homeowner and homeowner’s association (HOA) over the life of the project. Water
should not be allowed to pond near foundations, enter into the driveway and
roadway pavement sections, nor flow uncontrollably down any slope.
•The slab subgrade should be pre-moisturized to at least the soil’s optimum moisture
content to a depth of 12 inches below finish grade. The slab subgrade moisture
content should be evaluated by GSI within 72 hours of the placement of the
underlayment sand and vapor retarder.
•The recommendations for retaining wall backfill, utility backfill, pavements,
infiltration, flatwork, etc., provided in GSI (2018b), should be followed.
REGULATORY COMPLIANCE
The soil engineering and engineering geologic aspects of the construction are in general
compliance with approved geotechnical report and geotechnical aspects of the
construction. Furthermore, with respect to the grading plans, GSI will certify that the soil1
engineering and engineering geologic aspects of the grading are in general compliance
with the approved geotechnical report and the grading plan.
GeoSoils, Inc.
California West Communities W.O. 7377-A-SC
Yada Family Farm Subdivision, Carlsbad May 13, 2020
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LIMITATIONS
The conclusions and recommendations presented herein are professional opinions. These
opinions have been derived in accordance with current standards of practice, and no
warranty, either express or implied, is given. Standards of practice are subject to change
with time. GSI assumes no responsibility or liability for work or testing performed by
others, or their inaction; or work performed when GSI is not requested to be onsite, to
evaluate if our recommendations have been properly implemented. Use of this report
constitutes an agreement and consent by the user to all the limitations outlined above,
notwithstanding any other agreements that may be in place. In addition, this report may
be subject to review by the controlling authorities.
GeoSoils, Inc.
California West Communities W.O. 7377-A-SC
Yada Family Farm Subdivision, Carlsbad May 13, 2020
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If you have any questions or comments regarding this letter, please do not hesitate to
contact the undersigned.
Respectfully submitted,
GeoSoils, Inc.
John P. Franklin David W. Skelly
Engineering Geologist, CEG 1340 Civil Engineer, RCE 47857
TMP/JPF/DWS/mn
Attachments:Table 1 - Field Density Test Results
Table 2 - As- Graded Lot Conditions
Appendix A - References
Appendix B - Laboratory Test Results
Plates 1 & 2 - Field Density Test Location Map
Distribution:(3) Addressee (via US mail and email)
Table 1
FIELD DENSITY TEST RESULTS
TEST UTILITY DATE TEST LOCATION TRACT ELEV MOISTURE DRY REL TEST SOIL
NO.TYPE OR CONTENT DENSITY COMP TYPE TYPE
DEPTH (ft)(%)(pcf)(%)
REMEDIAL GRADING
BT-2 10/5/18 Lot 4 Yada Pl 179.0 9.4 118.7 -ND B
BT-5 10/9/18 Lot 5 Yada Pl 180.0 6.6 117.1 -ND B
1 10/2/18 Yada Place Adj Lot 8 Yada Pl 143.0 8.2 124.1 95.0 ND A
2 10/2/18 Yada Place Adj Lot 8 Yada Pl 144.9 8.6 126.3 96.7 ND A
3 10/2/18 Yada Place Adj Lot 6 Yada Pl 150.7 8.1 129.0 98.8 ND A
4 10/2/18 Yada Place Adj Lot 6 Yada Pl 147.6 8.4 127.6 97.7 ND A
5*10/2/18 Yada Place Adj Lot 6 Yada Pl 156.3 6.2 123.1 94.2 ND A
5A 10/2/18 Yada Place Adj Lot 6 Yada Pl 156.3 8.1 126.4 96.8 ND A
6 10/2/18 Yada Place Adj Lot 6 Yada Pl 157.7 8.7 125.9 96.4 ND A
7 10/3/18 Yada Place Adj Lot 8 Yada Pl 151.0 8.4 126.1 96.5 ND A
8 10/3/18 Yada Place Adj Lot 8 Yada Pl 153.0 8.6 125.8 96.5 ND A
9 10/3/18 Yada Place Adj Lot 6 Yada Pl 164.9 7.9 127.6 97.7 ND A
10 10/3/18 Yada Place Adj Lot 6 Yada Pl 160.6 8.2 129.5 99.2 ND A
11 10/3/18 Yada Place Adj Lots 7/8 Yada Pl 160.0 8.6 130.5 99.9 ND A
12* 10/3/18 Yada Place Adj Lot 8 Yada Pl 155.0 6.3 123.8 94.8 ND A
12A 10/3/18 Yada Place Adj Lot 8 Yada Pl 155.0 8.2 124.8 95.6 ND A
13 10/3/18 Yada Place Adj Lot 6 Yada Pl 165.0 8.3 128.0 98.0 ND A
14 10/3/18 Yada Place Adj Lot 7 Yada Pl 161.0 8.1 130.1 99.6 ND A
15 10/3/18 Yada Place Adj Lot 8 Yada Pl 157.0 8.5 129.2 98.9 ND A
16 10/4/18 Yada Place Adj Lot 2 Yada Pl 165.0 8.9 120.4 91.2 ND B
17*10/4/18 Yada Place Adj Lot 1 Yada Pl 168.0 6.5 115.2 88.2 ND B
17A 10/4/18 Yada Place Adj Lot 1 Yada Pl 168.0 8.7 124.3 95.2 ND B
18 10/4/18 Yada Place Adj Lots 1/2 Yada Pl 170.0 8.6 124.6 95.4 ND B
19 10/4/18 Yada Place Adj Lots 1/2 Yada Pl 172.0 9.6 126.4 96.8 ND B
20 10/4/18 Yada Place Adj Lot 8 Yada Pl 172.0 8.9 121.3 92.9 ND B
21 10/4/18 Lot 1 N W Yada Pl 158.0 8.6 126.9 97.2 ND B
22 10/4/18 Lot 1 N W Yada Pl 160.0 8.8 120.4 92.2 ND B
23 10/5/18 Lot 1 N Center Yada Pl 166.0 10.4 126.9 97.1 ND B
24 10/5/18 Lot 1 S Center Yada Pl 167.0 10.3 126.4 96.8 ND B
25 10/5/18 Lot 3 N Center Yada Pl 178.0 8.6 128.7 98.5 ND B
26 10/5/18 Lot 3 S Center Yada Pl 179.0 8.8 120.3 92.1 ND B
27 10/5/18 Lot 2 N Center Yada Pl 171.5 9.1 119.8 91.8 ND B
29 10/9/18 Lot 8 Yada Pl 164.0 9.0 129.2 98.9 ND B
30 10/9/18 Lot 8 Yada Pl 166.0 9.0 128.6 98.5 ND B
31 10/9/18 Lot 8 Yada Pl 167.0 9.2 118.8 91.0 ND B
32 10/9/18 Lot 9 Yada Pl 162.5 8.8 121.7 93.2 ND B
33 10/9/18 Lot 9 Yada Pl 161.5 8.9 120.9 92.6 ND B
34 10/9/18 Lot 8 Yada Pl 162.0 8.5 119.9 91.8 ND B
35 10/9/18 Lot 4 Yada Pl 181.0 8.7 128.7 98.6 ND B
36 10/9/18 Lot 4 Yada Pl 182.0 9.2 125.6 96.2 ND B
37*10/9/18 Lot 10 Yada Pl 165.0 6.0 116.2 89.0 ND B
37A 10/9/18 Lot 10 Yada Pl 165.0 8.6 121.1 92.7 ND B
38 10/9/18 Lot 10 Yada Pl 166.5 9.0 120.9 92.6 ND B
39 10/9/18 Lot 7 Yada Pl 170.0 9.2 117.8 90.1 ND B
40*10/9/18 Lot 7 Yada Pl 171.0 7.0 107.1 82.0 ND B
40A 10/9/18 Lot 7 Yada Pl 171.0 8.6 122.0 93.4 ND B
41 10/9/18 Lot 11 Yada Pl 171.0 8.5 130.5 99.9 ND B
42 10/9/18 Lot 11 Yada Pl 173.0 8.8 128.1 98.1 ND B
43 10/9/18 S End Lot 6 Yada Pl 175.5 8.5 118.6 90.8 ND B
44 10/9/18 N End Lot 6 Yada Pl 178.2 8.9 124.2 95.1 ND A
45 10/9/18 Lot 6, Mid End Yada Pl 176.9 7.9 121.2 92.8 ND A
46 10/9/18 Lot 11, Mid End Yada Pl 175.2 9.0 117.6 92.8 ND A
47*10/9/18 Lot 6, N Corner Yada Pl 178.5 9.2 110.5 84.6 ND A
47A 10/9/18 Lot 6, N Corner Yada Pl 178.2 8.3 122.5 93.8 ND A
48 10/9/18 Lot 6, Middle Yada Pl 180.8 7.1 119.2 91.3 ND A
49 10/15/18 Lot 6, N End Yada Pl 181.6 8.9 124.0 94.9 ND A
50 10/15/18 Lot 6, S End Yada Pl 181.1 10.1 125.9 96.4 ND A
51 10/15/18 Lot 12, NW End Yada Pl 174.1 8.5 119.5 91.5 ND A
52 10/15/18 Lot 12, Middle Yada Pl 174.5 7.2 118.6 90.8 ND A
53 10/16/18 Lot 12, Middle Yada Pl 176.2 8.9 118.5 90.8 ND A
54 10/16/18 Lot 12, Middle Yada Pl 177.6 9.9 123.2 94.3 ND A
55 10/16/18 Lot 12, W End Yada Pl 177.5 8.1 122.8 94.0 ND A
56 10/17/18 Lot 12, N End Yada Pl 176.5 9.0 119.4 91.4 ND A
57 10/17/18 Lot 12, N End Yada Pl 177.5 9.5 118.2 90.5 ND A
49'4/22/19 Lot 4 Yada Pl 179.2 10.9 119.5 91.5 ND A
50'4/22/19 Lot 4 Yada Pl 179.2 11.5 117.9 90.3 ND A
51'4/22/19 Lot 4 Yada Pl 179.2 10.5 118.0 90.4 ND A
52'4/22/19 Lot 4 Yada Pl 179.1 12.0 117.5 90.0 ND A
California West Communities
Yada Family Farm Subdivision, Carlsbad
File: C\excel\tables\7300\7377b.tbl GeoSoils, Inc.
W.O. 7377-B/C/D/E/F-SC
May 2020
Page 1
Table 1
FIELD DENSITY TEST RESULTS
TEST UTILITY DATE TEST LOCATION TRACT ELEV MOISTURE DRY REL TEST SOIL
NO.TYPE OR CONTENT DENSITY COMP TYPE TYPE
DEPTH (ft)(%)(pcf)(%)
53'4/22/19 Lot 4 Yada Pl 179.1 11.4 117.7 90.1 ND A
54'4/23/19 Lot 4 Yada Pl 182.5 9.7 120.2 92.0 ND A
55'4/23/19 Lot 4 Yada Pl 183.0 9.0 119.3 91.3 ND A
56'4/23/19 Lot 4 Yada Pl 182.0 8.5 121.0 92.6 ND A
57'4/24/19 Lot 5 Yada Pl 177.0 10.4 118.3 90.6 ND A
58 4/24/19 Lot 5 Yada Pl 177.4 9.9 118.0 90.4 ND A
59 4/24/19 Lot 5 Yada Pl 180.0 14.8 118.8 94.8 ND A
60 4/24/19 Lot 5 Yada Pl 180.0 14.6 111.5 95.4 ND A
61 5/29/19 Lot 5 Yada Pl 179.0 9.0 119.3 91.3 ND A
62 5/29/19 Lot 5 Yada Pl 179.0 8.9 121.0 92.6 ND A
63 5/29/19 Lot 5 Yada Pl 181.0 9.3 119.8 91.7 ND A
64 5/29/19 Lot 5 Yada Pl 181.5 8.4 120.0 91.9 ND A
65 5/30/19 Lot 5 Yada Pl FG 8.4 118.2 90.5 ND A
66 5/30/19 Lot 5 Yada Pl FG 8.1 117.9 90.3 ND A
67 6/17/19 Lot 4 Yada Pl FG 8.9 121.8 93.3 ND A
SIDEWALK/DRIVEWAY SUBGRADE
1 SG 9/18/19 Driveway Apron, Lot 1 Buena Vista/Valley SG 9.4 124.9 95.6 ND A
2 SG 9/18/19 Driveway Apron, Lot 2 Buena Vista/Valley SG 9.0 125.0 95.7 ND A
3 SG 9/18/19 Driveway Apron, Lot 7 Buena Vista/Valley SG 8.3 125.4 96.0 ND A
4 SG 9/18/19 Driveway Apron, Lot 8 Buena Vista/Valley SG 8.8 124.7 95.5 ND A
5 SG 9/18/19 Sidewalk, Lots 1/ 2 Buena Vista/Valley SG 10.0 122.6 93.9 ND A
6 SG 9/18/19 Sidewalk, Lots 7/ 8 Buena Vista/Valley SG 9.6 124.0 94.9 ND A
7 SG 9/18/19 Adj N Return, Valley St Buena Vista/Valley SG 11.2 121.9 93.3 ND A
8 SG 9/18/19 Adj N Return, Valley St Buena Vista/Valley SG 10.7 123.4 94.5 ND A
9 SG 10/3/19 Driveway, Yada Residence Buena Vista/Valley SG 11.2 124.8 95.6 ND A
10 SG 10/3/19 Driveway, Yada Residence Buena Vista/Valley SG 11.0 124.5 95.3 ND A
11 SG 10/3/19 City Sidewalk, N Buena Vista/Valley SG 8.8 118.5 90.7 ND A
12 SG 10/3/19 City Sidewalk, N Buena Vista/Valley SG 9.0 119.0 91.1 ND A
13 SG 10/3/19 City Sidewalk, S Buena Vista/Valley SG 8.3 119.2 91.3 ND A
14 SG 10/3/19 City Sidewalk, S Buena Vista/Valley SG 8.4 118.8 91.0 ND A
15 SG 12/16/19 Approach, Lot 3 Buena Vista/Valley SG 10.7 124.5 95.3 ND A
16 SG 12/16/19 Sidewalk, Lots 3/4 Buena Vista/Valley SG 11.4 118.0 90.4 ND A
17 SG 12/16/19 Approach, Lot 4 Buena Vista/Valley SG 12.2 125.5 96.1 ND A
18 SG 12/16/19 Sidewalk, Lots 5/6 Buena Vista/Valley SG 8.7 118.8 91.0 ND A
19 SG 12/16/19 Approach, Lot 5 Buena Vista/Valley SG 10.4 124.7 95.5 ND A
20 SG 12/16/19 Approach, Lot 6 Buena Vista/Valley SG 12.2 126.2 96.6 ND A
21 SG 12/18/19 Driveway Approach, Lot 11 Buena Vista/Valley SG 9.5 125.3 95.9 ND A
22 SG 12/18/19 Sidewalk, Lots 10/11 Buena Vista/Valley SG 10.2 119.0 91.1 ND A
23 SG 12/18/19 Driveway Approach, Lot 10 Buena Vista/Valley SG 9.7 126.4 96.8 ND A
24 SG 3/18/19 Driveway, Model Buena Vista/Valley SG 10.0 124.6 95.4 ND A
25 SG 3/18/19 Driveway, Model Buena Vista/Valley SG-6'9.0 124.9 95.6 ND A
26 SG 4/8/19 McCauley Ped Ramp Buena Vista/Valley SG 8.2 120.4 92.2 ND A
27 SG 4/8/19 Pedestrian Ramp, Valley St N Buena Vista/Valley SG 9.1 119.6 91.6 ND A
28 SG 5/13/19 Sidewalk, Model Buena Vista/Valley SG 9.9 118.4 90.7 ND A
29 SG 5/13/19 Driveway Approach, Model Buena Vista/Valley SG 10.0 124.9 95.6 ND A
SEWER HOUSE CONNECTS
1*SHC 7/19/19 Lot 6 Yada Pl -1.5 9.2 114.5 87.7 ND A
1A SHC 7/19/19 Lot 6 Yada Pl -1.0 9.0 118.0 90.4 ND A
2 SHC 7/19/19 Lot 5 Yada Pl -2.0 11.0 121.0 92.6 ND A
3 SHC 7/19/19 Lot 4 Yada Pl -2.0 10.3 118.9 91.0 ND A
4 SHC 7/22/19 Lot 10 Yada Pl -1.5 9.2 119.5 97.7 ND A
5 SHC 7/22/19 Lot 11 Yada Pl -1.0 9.0 118.0 90.4 ND A
6 SHC 7/22/19 Lot 11 Yada Pl -2.0 11.0 121.0 92.6 ND A
SEWER
1 SM 11/2/18 Yada Place Lot 2, 3+00 1835 Buena Vista Way 172.0 9.8 123.9 94.8 ND A
2 SM 11/2/18 Yada Place Lot 2, 3+30 1835 Buena Vista Way 174.0 9.1 125.4 96.0 ND A
3 SL 11/2/18 Yada Place Lot 3, 3+50 1835 Buena Vista Way 173.0 8.8 124.7 95.4 ND A
4 SL 11/6/18 Yada Place Lot 4 1835 Buena Vista Way 174.0 9.5 124.5 95.3 ND A
5 SL 11/6/18 Yada Place Lot 5 1835 Buena Vista Way 173.0 9.1 125.7 96.2 ND A
6 SM 11/6/18 Yada Place Lot M/H 2 1835 Buena Vista Way 174.0 10.2 124.4 95.2 SC A
7 SM 11/6/18 Yada Place Lot M/H 2 1835 Buena Vista Way 175.0 9.3 125.2 95.8 ND A
8 SL 11/6/18 Yada Place Lot 6 1835 Buena Vista Way 173.0 10.4 124.8 95.5 ND A
9 SL 11/6/18 Yada Place Lot 7 1835 Buena Vista Way 167.0 9.5 123.9 94.8 ND A
10 SL 11/6/18 Yada Place Lot 8 1835 Buena Vista Way 158.0 9.2 124.7 95.4 SC A
11 SL 11/8/18 Buena Vista Way Lot 10 1835 Buena Vista Way 163.0 9.6 124.1 95.0 ND A
12 SL 11/8/18 Buena Vista Way Lot 10 1835 Buena Vista Way 166.0 10.7 126.5 96.8 ND A
13 SL 11/9/18 Buena Vista Way Lot 9 1835 Buena Vista Way 156.0 9.5 124.5 95.3 ND A
14 SL 11/9/18 Buena Vista Way Lot 9 1835 Buena Vista Way 158.0 10.1 125.1 95.7 ND A
California West Communities
Yada Family Farm Subdivision, Carlsbad
File: C\excel\tables\7300\7377b.tbl GeoSoils, Inc.
W.O. 7377-B/C/D/E/F-SC
May 2020
Page 2
Table 1
FIELD DENSITY TEST RESULTS
TEST UTILITY DATE TEST LOCATION TRACT ELEV MOISTURE DRY REL TEST SOIL
NO.TYPE OR CONTENT DENSITY COMP TYPE TYPE
DEPTH (ft)(%)(pcf)(%)
15 SL 11/9/18 Buena Vista Way Lot 9 1835 Buena Vista Way 159.0 9.3 124.8 95.5 ND A
16 SM 11/13/18 Buena Vista Way 3+80 1835 Buena Vista Way 169.0 9.4 124.8 95.5 ND A
17 SM 11/13/18 Buena Vista Way 3+60 1835 Buena Vista Way 167.0 10.1 124.1 95.0 ND A
18 SM 11/13/18 Buena Vista Way 3+40 1835 Buena Vista Way 166.0 9.6 125.2 95.8 ND A
19 SM 11/19/18 Buena Vista Way 4+05 1835 Buena Vista Way 171.0 9.4 124.9 95.6 ND A
20 SM 11/19/18 Buena Vista Way 4+15 1835 Buena Vista Way 174.0 8.8 125.3 95.9 ND A
21 SM 11/19/18 Buena Vista Way 4+25 1835 Buena Vista Way 172.0 9.5 126.1 96.5 ND A
22 SL 11/20/18 Buena Vista Way Lot 11 1835 Buena Vista Way 167.0 9.5 125.1 95.7 ND A
23 SL 11/20/18 Buena Vista Way Lot 11 1835 Buena Vista Way 169.0 9.1 125.1 95.8 ND A
24 SL 11/20/18 Buena Vista Way Lot 12 1835 Buena Vista Way 173.0 10.4 124.7 95.4 ND A
25 SL 11/20/18 Buena Vista Way Lot 12 1835 Buena Vista Way 175.0 9.6 124.4 95.2 ND A
26 SM 11/28/18 Buena Vista Way M/H 3 1835 Buena Vista Way 164.0 9.8 125.1 95.7 ND A
27 SM 11/28/18 Buena Vista Way M/H 3 1835 Buena Vista Way 164.0 9.5 125.3 95.9 ND A
28 SM 11/28/18 Buena Vista Way M/H 3 1835 Buena Vista Way 166.0 8.8 125.6 96.1 ND A
29 SM 11/28/18 Buena Vista Way M/H 3 1835 Buena Vista Way 167.0 9.7 124.8 95.5 ND A
30 S 1/4/19 Yada Pl/Valley St Yada Farm 151.0 9.9 121.8 93.3 ND A
31 S 1/4/19 Yada Pl/Valley St Yada Farm 153.0 10.8 122.4 93.7 ND A
32 S 1/4/19 Yada Pl/Valley St Yada Farm 155.0 10.6 121.0 92.6 ND A
33 S 1/4/19 Yada Pl/Valley St Yada Farm 157.5 8.3 122.9 94.1 ND A
34 S 1/8/19 Sewer Crossing, Valley St Yada Farm 155.0 9.9 121.8 93.3 ND A
35 S 1/8/19 Sewer Crossing, Valley St Yada Farm 157.0 10.8 122.4 93.7 ND A
36 S 1/8/19 Sewer Crossing, Valley St Yada Farm 159.0 10.6 121.0 92.6 ND A
37 S 1/11/19 Yada Place Yada Farm 157.0 11.0 122.0 93.4 ND A
38 S 1/11/19 Yada Place Yada Farm 161.0 10.4 120.6 92.3 ND A
39 S 3/14/19 1835 Buena Vista Way Yada Farm -4.0 10.5 118.0 90.4 ND A
40 S 3/14/19 1835 Buena Vista Way Yada Farm -2.0 11.0 118.2 90.5 ND A
41 S 3/14/19 1835 Buena Vista Way Yada Farm FG 9.9 121.0 92.6 ND A
42 S 3/15/19 1835 Buena Vista Way Yada Farm -3.0 9.2 119.0 91.1 ND A
43 S 3/15/19 1835 Buena Vista Way Yada Farm -1.0 8.5 118.6 90.8 ND A
WATER
1 WL 11/16/18 Yada Place Lot 5 1835 Buena Vista Way 178 8.5 120.9 92.5 ND A
2 WL 11/16/18 Yada Place Lot 6 1835 Buena Vista Way 177 9.1 121.5 93.0 ND A
3 WM 11/16/18 Yada Place Lot 3+50 1835 Buena Vista Way 178 9.4 123.7 94.7 ND A
4 WM 11/16/18 Yada Place Lot 3+23 1835 Buena Vista Way 176 8.8 121.5 93.1 ND A
5 WL 11/16/18 Yada Place Lot 3 1835 Buena Vista Way 176 9.1 120.9 92.5 ND A
6 WL 11/16/18 Yada Place Lot 2 1835 Buena Vista Way 173 9.5 121.8 93.2 ND A
7 WM 11/16/18 Yada Place 2+50 1835 Buena Vista Way 168 9.3 122.4 93.7 ND A
8 WM 11/16/18 Yada Place Lot 2+00 1835 Buena Vista Way 163 8.9 121.5 93.1 ND A
9 WL 11/27/18 Buena Vista Way 1835 Buena Vista Way 168.0 9.4 124.5 95.3 ND A
10 WL 11/27/18 Buena Vista Way 1835 Buena Vista Way 169.0 9.9 125.7 96.2 ND A
11 WL 12/3/18 Buena Vista Way Lot 10 3+04 1835 Buena Vista Way 167.0 9.5 124.6 95.4 ND A
12 WL 12/3/18 Buena Vista Way Lot 10 3+04 1835 Buena Vista Way 167.0 9.3 125.1 95.7 ND A
13 WL 12/4/18 Buena Vista Way Lot 12 4+36 1835 Buena Vista Way 176.5 8.4 124.6 95.4 ND A
14 WL 12/4/18 Buena Vista Way Lot 9 2+02 1835 Buena Vista Way 159.0 9.6 125.7 96.2 ND A
17 W 2/7/19 Valley/Yada Tie in 1835 Buena Vista Way -2.0 8.2 121.0 92.6 ND A
18 W 2/7/19 Valley/Yada Tie in 1835 Buena Vista Way -2.0 9.0 121.6 93.1 ND A
19 W 2/13/19 Valley/Yada Crossing 1835 Buena Vista Way -4.0 10.0 123.2 94.3 ND A
20 W 2/13/19 Valley/Yada Crossing 1835 Buena Vista Way -2.0 9.8 121.8 93.3 ND A
21 W 2/13/19 Valley/Yada Crossing 1835 Buena Vista Way -1.0 11.2 122.4 93.7 ND A
22 W 2/27/19 Model Lot Hydrant 1835 Buena Vista Way -3.5 9.7 122.8 94.0 ND A
23 W 2/27/19 Model Lot Hydrant 1835 Buena Vista Way -2.0 9.9 124.6 95.4 ND A
24 W 2/27/19 Model Lot Hydrant 1835 Buena Vista Way -1.0 8.9 121.5 93.0 ND A
25 W 4/9/19 Valley St, Yada 1835 Buena Vista Way -3.0 8.5 125.3 95.9 ND A
26 W 4/9/19 Valley St, Yada 1835 Buena Vista Way -1.0 8.8 125.4 96.0 ND A
27 W 4/10/19 Corner, Buena Vista Way/Valley St Yada Farm -4.0 8.8 126.7 97.0 ND A
28 W 4/10/19 Corner, Buena Vista Way/Valley St Yada Farm -2.0 9.3 124.6 95.4 ND A
29 W 4/10/19 Corner, Buena Vista Way/Valley St Yada Farm -2.0 8.2 125.2 95.9 ND A
30 W 4/11/19 Valley St 2+60 Yada Farm -12.0 9.1 124.7 95.5 ND A
31 W 4/11/19 Valley St 2+60 Yada Farm -24.0 11.4 125.0 95.7 ND A
32 W 4/11/19 Valley St 2+60 Yada Farm -12.0 11.0 124.8 95.6 ND A
33 W 4/11/19 Valley St 2+60 Yada Farm -18.0 8.8 124.6 95.4 ND A
STORM DRAIN
1 SD 12/11/18 North Lot 12 1835 Buena Vista Way 177.0 9.6 119.5 91.5 ND A
2 SD 12/11/18 North Lot 12 1835 Buena Vista Way 176.0 10.1 120.8 92.4 ND A
3 SD 12/11/18 North Lot 12 1835 Buena Vista Way 174.0 11.2 121.4 93.0 ND A
4 SD 12/11/18 North Lot 12 1835 Buena Vista Way 173.0 10.9 119.7 91.6 ND A
5 SD 12/12/18 North Lot 11 1835 Buena Vista Way 172.0 8.5 120.8 92.4 ND A
6 SD 12/12/18 North Lot 11 1835 Buena Vista Way 172.0 9.3 123.2 94.3 ND A
California West Communities
Yada Family Farm Subdivision, Carlsbad
File: C\excel\tables\7300\7377b.tbl GeoSoils, Inc.
W.O. 7377-B/C/D/E/F-SC
May 2020
Page 3
Table 1
FIELD DENSITY TEST RESULTS
TEST UTILITY DATE TEST LOCATION TRACT ELEV MOISTURE DRY REL TEST SOIL
NO.TYPE OR CONTENT DENSITY COMP TYPE TYPE
DEPTH (ft)(%)(pcf)(%)
7 SD 12/13/18 North Lot 11 1835 Buena Vista Way 172.0 8.6 120.8 92.4 ND A
8 SD 12/13/18 North Lot 10 1835 Buena Vista Way 166.0 9.5 121.5 93.0 ND A
9 SD 12/13/18 North Lot 10 1835 Buena Vista Way 167.0 10.1 120.7 92.4 ND A
10 SD 12/13/18 North Lot 9 1835 Buena Vista Way 162.0 8.7 121.8 93.2 ND A
11 SD 12/20/18 Entry, Valley St Left Side 1835 Buena Vista Way -1.0 10.0 123.2 94.3 ND A
12 SD 12/20/18 Entry, Valley St Left Side 1835 Buena Vista Way FG 9.5 120.8 92.5 ND A
JOINT TRENCH
1 JT 12/12/18 Yada Place 2+44 1835 Buena Vista Way 168.0 8.5 120.8 92.4 ND A
2 JT 12/12/18 Yada Place 2+26 1835 Buena Vista Way 166.0 9.2 122.4 93.7 ND A
3 JT 12/17/18 Buena Vista Way 3+89 1835 Buena Vista Way 171.0 9.5 126.6 96.9 ND A
4 JT 12/17/18 Buena Vista Way 3+89 1835 Buena Vista Way 172.0 8.7 125.4 96.0 ND A
5 JT 12/17/18 Buena Vista Way 3+98 1835 Buena Vista Way 172.0 9.3 124.7 95.4 ND A
6 JT 12/17/18 Buena Vista Way 3+98 1835 Buena Vista Way 172.0 8.9 124.9 95.6 ND A
7 JT 12/17/18 Buena Vista Way 2+47 1835 Buena Vista Way 162.0 9.1 125.2 95.8 ND A
8 JT 12/17/18 Buena Vista Way 2+47 1835 Buena Vista Way 162.0 8.5 124.4 95.2 ND A
9 JT 12/20/18 Buena Vista Way 2+58 1835 Buena Vista Way 163.0 9.1 125.1 95.7 ND A
10 JT 12/20/18 Cul-De-Sac 1835 Buena Vista Way -1.0 9.8 121.3 92.9 ND A
11 JT 12/20/18 Cul-De-Sac 1835 Buena Vista Way -2.0 9.5 119.0 91.1 ND A
12 JT 12/20/18 Cul-De-Sac 1835 Buena Vista Way -0.5 10.0 122.4 93.7 ND A
13 JT 12/20/18 Cul-De-Sac 1835 Buena Vista Way 8.9 8.9 120.1 92.0 ND A
14 JT 1/9/19 Yada Place 1835 Buena Vista Way 158.0 9.8 119.4 91.4 ND A
15 JT 1/9/19 Yada Place 1835 Buena Vista Way 160.0 9.5 120.4 92.2 ND A
19 JT 2/13/19 Valley/Yada Crossing 1835 Buena Vista Way -4.0 10.0 123.2 94.3 ND A
20 JT 2/13/19 Valley/Yada Crossing 1835 Buena Vista Way -2.0 9.8 121.8 93.3 ND A
21 JT 2/13/19 Valley/Yada Crossing 1835 Buena Vista Way -1.0 11.2 122.4 93.7 ND A
SUBGRADE
1 SG 2/20/19 Water Trench Crossing Buena Vista/Valley SG 9.5 125.6 96.2 ND A
2 SG 2/20/19 Water Trench Crossing Buena Vista/Valley SG 9.9 124.9 95.6 ND A
3 SG 2/20/19 Sewer Trench Crossing Buena Vista/Valley SG 9.7 125.3 95.9 ND A
4 SG 2/20/19 Sewer Trench Crossing Buena Vista/Valley SG 10.2 125.0 95.7 ND A
5 SG 2/20/19 Crossing Valley St.Buena Vista/Valley SG 10.4 124.2 95.1 ND A
6 SG 2/20/19 Buena Vista/Valley Buena Vista/Valley SG 9.3 124.6 95.4 ND A
7 SG 2/27/19 Sta 4+95 Buena Vista/Valley SG 8.7 125.4 96.0 ND A
8 SG 2/27/19 Sta 1+35 Buena Vista/Valley SG 8.5 124.3 95.2 ND A
9 SG 2/28/19 Sta 2+50 Buena Vista/Valley SG 9.0 124.5 95.3 ND A
10 SG 2/28/19 Sta 3+00 Buena Vista/Valley SG 8.7 124.8 95.6 ND A
11 SG 2/28/19 Sta 2+75 Buena Vista/Valley SG 8.4 125.5 96.1 ND A
12 SG 3/1/19 Gutter Crossing, Sta 1+25 Buena Vista/Valley SG 9.8 125.1 95.8 ND A
13 SG 3/1/19 Sta 1+75 Buena Vista/Valley SG 8.4 124.2 95.1 ND A
14 SG 3/1/19 Sta 2+25 Buena Vista/Valley SG 8.6 124.1 95.0 ND A
15 SG 3/4/19 Gutter Crossing, Sta 1+20 Buena Vista/Valley SG 8.9 124.7 95.5 ND A
16 SG 3/4/19 Yada/Valley Buena Vista/Valley SG 8.7 124.3 95.2 ND A
19 SG 3/4/19 Yada/Valley Buena Vista/Valley SG 9.2 125.1 95.8 ND A
20 SG 3/5/19 Gutter Crossing, Sta 1+20 Buena Vista/Valley SG 9.2 124.8 95.6 ND A
21 SG 3/5/19 Yada/Valley Buena Vista/Valley SG 8.7 124.1 95.0 ND A
22 SG 3/5/19 Yada Place 2+00 Buena Vista/Valley SG 9.5 126.0 96.5 ND A
23 SG 3/5/19 Yada Place 2+50 Buena Vista/Valley SG 8.8 125.3 95.9 ND A
24 SG 3/5/19 Yada Place 3+00 Buena Vista/Valley SG 8.4 124.9 95.6 ND A
25 SG 3/5/19 Yada Place 1+75 Buena Vista/Valley SG 9.0 126.0 96.5 ND A
26 SG 3/5/19 Valley St 4+00 Buena Vista/Valley SG 10.5 125.0 95.7 ND A
27 SG 3/5/19 Valley St 3+50 Buena Vista/Valley SG 11.0 125.3 95.9 ND A
28 SG 3/5/19 Valley St 3+00 Buena Vista/Valley SG 11.2 126.0 96.5 ND A
29 SG 3/11/19 Valley St 2+50 Buena Vista/Valley SG 11.9 124.8 95.6 ND A
30 SG 3/11/19 Valley St 2+00 Buena Vista/Valley SG 12.4 124.5 95.3 ND A
31 SG 3/11/19 Return, Valley St Buena Vista/Valley SG 10.8 124.9 95.6 ND A
32 SG 3/13/19 S Curb Inlet, Yada Pl Buena Vista/Valley SG 12.6 124.2 95.1 ND A
33 SG 3/13/19 N Curb Inlet, Yada Pl Buena Vista/Valley SG 12.0 125.0 95.7 ND A
34 SG 3/14/19 Return, Valley/Buena Vista Buena Vista/Valley SG 11.6 124.8 95.6 ND A
35 SG 3/14/19 Buena Vista Lot 9 Buena Vista/Valley SG 12.1 124.5 95.3 ND A
36 SG 3/14/19 Buena Vista Lot 9 Buena Vista/Valley SG 11.5 125.1 95.8 ND A
34 SG 3/15/19 Buena Vista 3+00 Buena Vista/Valley SG 9.3 125.0 95.7 ND A
35 SG 3/15/19 Buena Vista 3+15 Buena Vista/Valley SG-1'11.4 124.2 95.1 ND A
36 SG 3/15/19 Buena Vista 3+15 Buena Vista/Valley SG 10.1 124.1 95.0 ND A
39 SG 3/19/19 Valley St/Buena Vista Buena Vista/Valley SG 11.5 124.8 95.6 ND A
40 SG 3/19/19 Valley St/Buena Vista Buena Vista/Valley SG 11.1 124.6 95.4 ND A
41 SG 3/19/19 Valley St/Buena Vista Buena Vista/Valley SG 12.0 124.4 95.3 ND A
42 SG 3/20/19 Valley St/Buena Vista Buena Vista/Valley SG 10.1 124.4 95.3 ND A
43 SG 3/20/19 Valley St/Buena Vista Buena Vista/Valley SG 9.7 124.6 95.4 ND A
California West Communities
Yada Family Farm Subdivision, Carlsbad
File: C\excel\tables\7300\7377b.tbl GeoSoils, Inc.
W.O. 7377-B/C/D/E/F-SC
May 2020
Page 4
Table 1
FIELD DENSITY TEST RESULTS
TEST UTILITY DATE TEST LOCATION TRACT ELEV MOISTURE DRY REL TEST SOIL
NO.TYPE OR CONTENT DENSITY COMP TYPE TYPE
DEPTH (ft)(%)(pcf)(%)
44 SG 3/20/19 Valley St/Buena Vista Buena Vista/Valley SG 9.5 124.1 95.0 ND A
45 SG 3/20/19 Valley St/Buena Vista Buena Vista/Valley SG 10.4 125.0 95.7 ND A
46*SG 3/22/19 Valley St/Buena Vista Buena Vista/Valley SG 11.6 121.4 93.0 ND A
46A SG 3/22/19 Valley St/Buena Vista Buena Vista/Valley SG 9.9 125.6 96.2 ND A
47*SG 3/22/19 Valley St/Buena Vista Buena Vista/Valley SG 10.9 120.7 92.4 ND A
47A SG 3/22/19 Valley St/Buena Vista Buena Vista/Valley SG 10.4 125.3 95.9 ND A
48 SG 3/25/19 Buena Vista Buena Vista/Valley SG 11.6 121.4 93.0 ND A
49 SG 3/25/19 Buena Vista Buena Vista/Valley SG 10.9 120.7 92.4 ND A
50 SG 3/25/19 Buena Vista Buena Vista/Valley SG 9.9 125.6 96.2 ND A
51 SG 3/25/19 Buena Vista Buena Vista/Valley SG 10.4 125.3 95.9 ND A
BASE GRADE
1 BG 2/20/19 Water Trench Crossing Buena Vista/Valley BG 8.0 129.2 95.2 ND C
2 BG 2/20/19 Water Trench Crossing Buena Vista/Valley BG 7.7 129.9 95.7 ND C
3 BG 2/20/19 Water Trench Crossing Buena Vista/Valley BG 8.2 131.2 96.7 ND C
4 BG 2/20/19 Water Trench Crossing Buena Vista/Valley BG 8.0 130.5 96.2 ND C
5 BG 2/20/19 Valley St Crossing Buena Vista/Valley BG 7.6 132.6 97.7 ND C
6 BG 2/20/19 Valley/Buena Vista Crossing Buena Vista/Valley BG 7.9 131.4 96.8 ND C
7 BG 3/1/19 McCauley 5+00 Buena Vista/Valley BG 13.8 110.7 95.4 ND D
8 BG 3/1/19 McCauley 3+75 Buena Vista/Valley BG 13.0 110.5 95.3 ND D
9 BG 3/6/19 McCauley 2+50 Buena Vista/Valley BG 14.0 110.9 95.6 ND D
10 BG 3/6/19 N Return, McCauley 1+25 Buena Vista/Valley BG 14.9 111.5 96.1 ND D
11 BG 3/6/19 Valley St Lot 1 Buena Vista/Valley BG 15.3 110.7 95.4 ND D
12 BG 3/6/19 S Return, Yada Pl Buena Vista/Valley BG 14.7 111.0 95.7 ND D
13 BG 3/6/19 Yada 2+00 Buena Vista/Valley BG 13.9 110.8 95.5 ND D
14 BG 3/6/19 Yada 3+00 Buena Vista/Valley BG 14.8 110.2 95.0 ND D
15 BG 3/6/19 Yada 1+50 Buena Vista/Valley BG 15.0 111.3 95.9 ND D
16 BG 3/6/19 N Return, Yada Pl Buena Vista/Valley BG 13.7 111.0 95.7 ND D
17 BG 3/6/19 McCauley Sta 5+10 Buena Vista/Valley BG 14.0 110.9 95.6 ND D
18 BG 3/6/19 McCauley Sta 5+20 Buena Vista/Valley BG 14.9 111.5 96.1 ND D
19*BG 3/18/19 McCauley/Valley St Buena Vista/Valley BG 14.6 108.0 93.1 ND D
19A BG 3/19/19 McCauley/Valley St Buena Vista/Valley BG 13.9 112.1 96.6 ND D
20 BG 3/18/19 Valley St Buena Vista/Valley BG 13.7 111.2 95.9 ND D
21 BG 3/18/19 Valley St Buena Vista/Valley BG 14.2 110.6 95.3 ND D
22 BG 3/18/19 Valley St Buena Vista/Valley BG 13.2 111.4 96.0 ND D
23 BG 3/18/19 Valley St Buena Vista/Valley BG 13.8 110.3 95.1 ND D
24 BG 3/18/19 Valley St Buena Vista/Valley BG 15.0 110.2 95.0 ND D
25 BG 3/18/19 Valley St/Buena Vista Buena Vista/Valley BG 13.7 110.9 95.6 ND D
26 BG 3/19/19 Valley St/Buena Vista Buena Vista/Valley BG 14.2 111.5 96.1 ND D
27 BG 3/19/19 Valley St/ Buena Vista Buena Vista/Valley BG 13.2 110.8 95.5 ND D
28 BG 2/25/29 Yada Pl 1+35 Buena Vista/Valley BG 13.4 111.7 96.3 ND D
29 BG 2/25/29 Yada Pl 2+50 Buena Vista/Valley BG 15.6 112.5 97.0 ND D
30 BG 2/25/29 Yada Pl 3+25 Buena Vista/Valley BG 15.0 112.0 96.6 ND D
31 BG 2/25/29 Yada Pl 3+50 Buena Vista/Valley BG 13.3 111.5 96.1 ND D
32 BG 3/29/19 Water Tie In, Valley St Buena Vista/Valley BG 13.0 111.0 95.7 ND D
33 BG 3/29/19 1835 Buena Vista Way Buena Vista/Valley BG 13.5 110.3 95.1 ND D
34 BG 3/29/19 1835 Buena Vista Way Buena Vista/Valley BG 14.0 110.6 95.3 ND D
37 BG 9/19/19 Driveway Approach, Lot 1 Buena Vista/Valley BG 15.3 110.6 95.3 ND D
38 BG 9/19/19 Driveway, Approaching Lot 2 Buena Vista/Valley BG 14.2 111.3 95.9 ND D
39 BG 9/19/19 Driveway, Approaching Lot 12 Buena Vista/Valley BG 16.6 111.7 96.3 ND D
40 BG 9/19/19 Driveway Buena Vista/Valley BG 15.1 110.6 95.3 ND D
41 BG 9/20/19 Driveway Approaching Lot 8 Buena Vista/Valley BG 13.2 111.2 95.9 ND D
42 BG 9/20/19 Driveway Approaching Lot 7 Buena Vista/Valley BG 13.7 110.7 95.4 ND D
43 BG 10/3/19 Driveway Buena Vista/Valley BG 13.2 111.2 95.9 ND D
44 BG 10/3/19 Approaching Lot 2 Buena Vista/Valley BG 13.7 110.7 95.4 ND D
45 BG 12/17/19 Driveway Approach, Lot 3 Yada Pl BG 14.1 111.1 95.8 ND D
46 BG 12/17/19 Driveway Approach, Lot 4 Yada Pl BG 13.7 112.3 96.8 ND D
47 BG 12/17/19 Driveway Approach, Lot 5 Yada Pl BG 12.7 111.5 96.1 ND D
48 BG 12/17/19 Driveway Approach, Lot 6 Yada Pl BG 14.2 113.4 97.8 ND D
49 BG 12/18/19 Lot 10 Yada Pl BG 12.2 110.9 95.6 ND D
50 BG 12/18/19 Lot 11 Yada Pl BG 14.3 110.2 95.0 ND D
ASPHALTIC CONCRETE TEMP.WET DENS.
1 AC 3/13/19 McCauley Sta 5+00 Buena Vista/Valley AC -139.7 95.7 ND AC
2 AC 3/13/19 McCauley Sta 3+50 Buena Vista/Valley AC -141.2 96.7 ND AC
3 AC 3/13/19 McCauley Sta 2+00 Buena Vista/Valley AC 292.6 139.0 95.2 ND AC
4 AC 3/13/19 McCauley Sta 4+50 Buena Vista/Valley AC -141.2 96.7 SC AC
5 AC 3/13/19 McCauley Sta 3+00 Buena Vista/Valley AC -139.9 95.9 SC AC
6 AC 3/13/19 McCauley Sta 1+80 Buena Vista/Valley AC 288.6 140.3 96.2 SC AC
7 AC 3/19/19 Valley St Buena Vista/Valley AC 297.0 141.0 96.6 ND AC
California West Communities
Yada Family Farm Subdivision, Carlsbad
File: C\excel\tables\7300\7377b.tbl GeoSoils, Inc.
W.O. 7377-B/C/D/E/F-SC
May 2020
Page 5
Table 1
FIELD DENSITY TEST RESULTS
TEST UTILITY DATE TEST LOCATION TRACT ELEV MOISTURE DRY REL TEST SOIL
NO.TYPE OR CONTENT DENSITY COMP TYPE TYPE
DEPTH (ft)(%)(pcf)(%)
7'AC 3/25/19 Yada Pl. 3+25 S Buena Vista/Valley AC 289.0 139.0 95.2 ND AC
8 AC 3/25/19 Yada Pl. 2+50 S Buena Vista/Valley AC 297.0 138.9 95.1 ND AC
9 AC 3/25/19 Yada Pl. 1+50 S Buena Vista/Valley AC 312.0 141.6 97.0 ND AC
10 AC 3/25/19 Yada Pl. 3+75 N Buena Vista/Valley AC 294.0 142.5 97.6 ND AC
11 AC 3/25/19 Yada Pl. 2+65 N Buena Vista/Valley AC 303.0 139.8 95.8 ND AC
12 AC 3/25/19 Yada Pl. 1+25 N Buena Vista/Valley AC 305.0 140.6 96.3 ND AC
RETAINING WALL
1 RW 1/11/19 Basin Wall Buena Vista/Valley 2.0 10.2 119.0 91.1 ND A
2 RW 1/11/19 Basin Wall Buena Vista/Valley 2.5 9.4 119.4 91.4 ND A
3 RW 1/11/19 Basin Wall Buena Vista/Valley 2.0 11.6 118.3 90.6 ND A
4 RW 3/5/19 Basin Wall, S Buena Vista/Valley -6.0 13.0 118.0 90.4 ND A
5 RW 3/5/19 Basin Wall, S Buena Vista/Valley -6.0 12.8 117.6 90.0 ND A
6*RW 3/5/19 Basin Wall, S Buena Vista/Valley -4.0 13.0 112.0 85.0 ND A
6A RW 3/5/19 Basin Wall, S Buena Vista/Valley -4.0 12.5 119.2 91.3 ND A
7*RW 3/5/19 Basin Wall, S Buena Vista/Valley -4.0 12.5 111.3 85.2 ND A
7A RW 3/5/19 Basin Wall, S Buena Vista/Valley -4.0 12.1 118.8 91.0 ND A
8 RW 3/5/19 Basin Wall, S Buena Vista/Valley -2.0 11.9 117.5 90.0 ND A
9 RW 3/5/19 Basin Wall, S Buena Vista/Valley -2.0 12.4 117.9 90.3 ND A
10 RW 3/6/19 Slope, Lot 1 Buena Vista/Valley 163.0 10.7 122.0 93.4 ND A
11 RW 3/6/19 Slope, Lot 1 Buena Vista/Valley 163.0 11.2 121.7 93.2 ND A
12 RW 3/6/19 Lot 1 Buena Vista/Valley 165.0 10.3 119.0 91.1 ND A
13 RW 3/6/19 Lot 1 Buena Vista/Valley 166.0 11.0 123.1 94.3 ND A
14 RW 3/8/19 Basin Wing, S Buena Vista/Valley -5.0 9.9 120.3 92.1 ND A
15 RW 3/8/19 Basin Wing, S Buena Vista/Valley -3.0 8.5 119.2 91.3 ND A
16 RW 3/8/19 Basin Wing, N Buena Vista/Valley -4.0 9.4 118.9 91.0 ND A
17 RW 3/8/19 Basin Wing, N Buena Vista/Valley -2.0 10.0 119.2 91.3 ND A
18 RW 3/8/19 Basin, N Buena Vista/Valley -4.0 11.6 118.2 90.5 ND A
LEGEND
* = Failing Test S =Sewer
' =Repeated Test Number SD = Storm Drain
A = Retest SG = Subgrade
AC =Asphaltic Concrete SHC =Sewer House Connects
BG =Base Grade SL =Sewer Lateral
BT = Bottom Test SM = Sewer Main
DENS =Density STA =Station
FG = Finish Grade W =Water
JT =Joint Trench WL =Water Lateral
ND = Nuclear Densometer WM =Water Main
RW =Retaining Wall
California West Communities
Yada Family Farm Subdivision, Carlsbad
File: C\excel\tables\7300\7377b.tbl GeoSoils, Inc.
W.O. 7377-B/C/D/E/F-SC
May 2020
Page 6
GeoSoils, Inc.
TABLE 2
AS-GRADED LOT CONDITIONS
TRACT/ LOT
NUMBER
EXPANSION
POTENTIAL
APPROXIMATE AS-BUILT FILL
THICKNESS ACROSS LOT (FEET)
Lot 1 Very Low ±3 to±7
Lot 2 Very Low ±3 to ±6.3
Lot 3 Very Low ±3 to ±4.7
Lot 4 Very Low ±3 to ±6.2
Lot 5 Very Low ±3.2 to ±4.4
Lot 6 Very Low ±3 to ±6.5
Lot 7 Very Low ±3 to ±4.5
Lot 8 Very Low ±3 to ±7.1
Lot 9 Very Low ±3.7 to ±5.3
Lot 10 Very Low ±3 to ±4.7
Lot 11 Very Low ±3.3 to ±5.3
Lot 12 Very Low ±3.2 to ±6.1
GeoSoils, Inc.
APPENDIX A
REFERENCES
GeoSoils, Inc.
APPENDIX A
REFERENCES
American Concrete Institute, 2014a, Building code requirements for structural concrete
(ACI 318-14), and commentary (ACI 318R-14): reported by ACI Committee 318,
dated September.
_____, 2014b, Building code requirements for concrete thin shells (ACI 318.2-14), and
commentary (ACI 318.2R-14), dated September.
_____, 2006, Design of slabs-on-ground (ACI 360R-06), reported by ACI Committee 360.
American Society for Testing and Materials (ASTM), 2006, Design of slabs-on-ground (ACI
360R-06), reported by ACI Committee 360.
_____, 2005, E 1643-98, Standard practice for installation of water vapor retarders used in
contact with earth or granular fill under concrete slabs.
_____, 2004, E 1745-97, Standard specification for plastic water vapor retarders used in
contact with soil or granular fill under concrete slabs.
_____, 2003, Standard test method for infiltration rate of soils in field using double-ring
infiltrometer, Designation D 3385-03, dated August.
_____, 1998, Standard practice for installation of water vapor retarder used in contact with
earth or granular fill under concrete slabs, Designation: E 1643-98 (Reapproved
2005).
_____, 1997, Standard specification for plastic water vapor retarders used in contact with
soil or granular fill under concrete slabs, Designation: E 1745-97 (Reapproved
2004).
American Society of Civil Engineers, 2014, Supplement No. 2, Minimum design loads for
buildings and other structures, ASCE Standard ASCE/SEI 7-10, dated
September 18.
_____, 2013a, Expanded seismic commentary, minimum design loads for buildings and
other structures, ASCE Standard ASCE/SEI 7-10 (included in third printing).
_____, 2013b, Errata No. 2, minimum design loads for buildings and other structures,
ASCE Standard ASCE/SEI 7-10, dated March 31.
_____, 2013c, Supplement No. 1, minimum design loads for buildings and other structures,
ASCE Standard ASCE/SEI 7-10, dated March 31.
GeoSoils, Inc.California West Communities Appendix A
File:wp12\7300\7377bcdef.sog Page 2
Basssenian/Lagoni, 2017, Carlsbad SFD, Carlsbad, CA, architectural plans, sheets: cover,
G.1, 1.1., 1.1-1, 1.1-2, 1.2, 1.7, 1.9, 2.1, 2.1-1, 2.2, 2.7, 3.1, 3.2, 3.2-1, 3.2-2, 3.2-3,
and 3.7; no job number, dated November 27.
bHA, Inc., 2017a, Site Plan for CT 15-11, Lots 9/10, Carlsbad 12, JN# 1289, dated
September 13.
_____, 2017b, Grading plans for: Yada family farm subdivision, 7-sheets, 30-scale,
undated.
California Building Standards Commission, 2016a, California Building Code, California
Code of Regulations, Title 24, Part 2, Volume 2 of 2, based on the 2015 International
Building Code, 2016 California Historical Building code, Title 24, Part 8, 2016
California Existing Building Code, Title 24, Part 10, and the 2015 International
Existing Building Code.
_____, 2016b, California Building Code, California Code of Regulations, Title 24, Part 2,
Volume 1 of 2, Based on the 2015 International Building Code.
Clar, M.L., Bartfield, B.J., O’Conner, T.P., 2004, Stormwater best management practice
design guide, volume 3, basin best management practices, US EPA/600/R-04/121B,
dated September.
City of Carlsbad, 2016, BMP Design Manual Appendices, effective February 16.
GeoSoils, Inc., 2019, Interim Report of Rough Grading, Lots 4 and 5, Yada Family Farm
Subdivision, Carlsbad, San Diego County, California, City of Carlsbad Project No.:
CT 15-11, W.O. 7377-B-SC, dated June 19.
_____, 2018a, As-graded compaction report Yada family farm subdivision, lots 1-3, and 6-
12, Carlsbad, San Diego County, California, W.O. 7377-B-SC, dated November 5.
_____, 2018b, Plan review and update geotechnical evaluation, proposed 12-lot
subdivision, 4.57 acres, 1835 Buena Vista Way, APN 156-220-01, Carlsbad,
San Diego County, California, W.O. 7377-A-SC, dated February 12.
_____, 2017, Memorandum: Supplemental geotechnical recommendations, walls and
bioretention basins, Carlsbad12, 1835 Buena Vista Way, APN 156-220-01,
W.O. 6927-A1-SC, dated November 8.
_____, 2015, Preliminary geotechnical investigation, proposed 14-lot subdivision,
4.14 acres, 1835 Buena Vista Way, APN 156-220-01, Carlsbad, San Diego County,
California, W.O. 6927-A-SC, dated August 3.
JD Reinforcing, Inc., 2018, Carlsbad SFD, 10-sheets, ¼”= 1' scale.
GeoSoils, Inc.California West Communities Appendix A
File:wp12\7300\7377bcdef.sog Page 3
Kanare, H.M., 2005, Concrete floors and moisture, Engineering Bulletin 119, Portland
Cement Association.
Orco Block Inc, 2018, Orco Wall System, structural calculations, 13 pages, dated
January 2.
PTDU, 2017, Calculations for post-tension slab on grade foundation design, 10 pages,
PTDU #3091, dated October 9.
Romanoff, M., 1957, Underground corrosion, originally issued April 1.
Swanson & Associates, 2018, Carlsbad SFD, Carlsbad CA, plans and structural
calculations, 18-sheets and 24 pages, respectively, dated January 8.
Sowers and Sowers, 1979, Unified soil classification system (After U. S. Waterways
Experiment Station and ASTM 02487-667) in Introductory Soil Mechanics,
New York.
State of California, 2020, Civil Code, Sections 895 et seq.
State of California Department of Transportation, Division of Engineering Services,
Materials Engineering, and Testing Services, Corrosion Technology Branch, 2003,
Corrosion Guidelines, Version 1.0, dated September.
United States Geological Survey, 2011, Seismic hazard curves and uniform hazard
response spectra - v5.1.0, dated February 2
GeoSoils, Inc.
APPENDIX B
LABORATORY TEST RESULTS
Cal Land Engineering, Inc.
dba Quartech Consultant
Geotechnical, Environmental, and Civil Engineering
SUMMARY OF LABORATORY TEST DATA
GeoSoils, Inc. QCI Project No.: 18-029-010e
5741 Palmer Way, Suite D Date: November 1, 2018
Carlsbad, CA 92010 Summarized by: MW
W.O.:
7377-B-SC
Project:
Cal-West
Test:
Corrosion
Corrosivity Test Results
Sample ID
Sample Depth
(ft)
pH
CT-532 (643)
Chloride
CT-422
(ppm)
Sulfate
CT-417
% By Weight
Resistivity
CT-532 (643)
(ohm-cm)
Lot 6
N/A
7.48
60
0.0404
2,600
Lot 12
N/A
7.60
100
0.0766
2,700
576 East Lambert Road, Brea, California 92821; Tel: 714-671-1050; Fax: 714-671-1090
W.O. 7377-B/C/D/E/F-SC
PLATE B-1
ALL LOCATIONS ARE APPROXIMATE
This document or efile is not a part of the Construction
Documents and should not be relied upon as being an
accurate depiction of design.
W.O.DATE:SCALE:7377-B-SC 1" = 20'
Plate 1
FIELD DENSITY TEST
LOCATION MAP
05/20
X-5,A
144.4
X-6
X-17,A
X-13
169.5
X-10
X-4
X-3
X-9
X-19
146.5
154.7
159.3
160.5
140.9
161.0
162.2 165.0
164.0 167.2
163.4 166.5
167.3 170.5 175.5
179.7
169.1 174.5
160.9
168.7 169.7 177.6
177.1
178.9
178.8
177.8
177.0
176.3
177.9
178.2
180.2
180.0
X-BT-7
X-45
X-48
X-50
X-44 X-47,A
X-49
X-35
X-36X-BT-2
X-26
X-25
175.8
X-39
X-40,A
X-20 X-14X-11
X-16
X-18
X-8
X-7
X-15
X-12,A
X-2
X-1
X-34
X-31 X-29
X-BT-4
X-30
X-22X-21
X-23
X-BT-1
X-24
X-27
X-28
X-43
141.9141.9
140.9
142.4
149.2
150.8 153.3
151.8
154.1
179.9
X-49'
X-50'
X-51'
X-52'
X-53'
X-54'
X-56'
X-55'
X-57'
X-58
X-59
X-60
X-61
X-62
X-63
X-66FG
X-65FG
X-64
X-67FG
X-BT-5
GSI LEGEND
X-67
187.5
X-57'
X-BT-7
X-67FG
ALL LOCATIONS ARE APPROXIMATE
This document or efile is not a part of the Construction
Documents and should not be relied upon as being an
accurate depiction of design.
W.O.DATE:SCALE:7377-B-SC 1" = 20'
Plate 2
FIELD DENSITY TEST
LOCATION MAP
05/20
SEE PLATE 1 FOR LEGEND
173.1
171.1
173.2 173.8170.7
168.8
169.9167.5163.5
164.5164.7
160.9159.3
159.8159.4
162.8
X-52
X-54
X-53
X-51
X-57
X-56
X-55
X-41
X-46
X-42
X-BT-6
X-37,A
X-38
X-32
X-33
X-58