HomeMy WebLinkAboutCT 14-05; MAGNOLIA TOWNHOMES; FINAL SOILS REPORT; 2019-09-21r--;z;;;;;;;~--S TR AT A-TECH, I NC.
____ __,GEO CO N 5 UL T A N TS ---
310. 968. 2999
September 21, 2019
Expanded
TMS Highland Investments, LLC
Tony Sfreddo
29250 Paseo Sedano
San Juan Capistrano, California
tsfreddo@icloud.com
Reference:
----------
Subject:
s tratatech@yahoo.com
W.O. 273114
As-Built Compaction Report, Multifamily
Residential Development749-763 Magnolia
Dr, Carlsbad, California
STRATA -TECH, INC., Preliminary Geotechnical Engineering Investigation,
Proposed Multi Family Residential Development, 749-763 Magnolia Drive,
Carlsbad, California, WO. 273114 Sept JO, 2014
Mr. Sfreddo:
Submitted herewith is the As-Built Compaction Report for the subject site. The grading
construction was conducted between April 14, 2017 and November 8, 2017, utilizing the
recommendations of the referenced report. Observations of the grading were provided by
STRATA-TECH, Inc.
PLACEMENT OF STRUCTURAL FILL
Compacted fill was placed on the subject site to provide adequate support for the proposed
multifamily dwellings. 0 Compaction testing was provided for
OBSERVATIONS DURING GRADING
Preparation for placement of compacted fill included over excavation to approximately 4 feet
below pad grade, and 5-feet beyond the building foundation to provide a minimum of 2 feet of
STRATA-TECH,INC.
GEOCO N SUL.TANTS
TMS Highland Investments, LLC
As-Built Compaction Report 2 w.o. 273114
September 21, 2019
compacted fill under the footings of the proposed building. Prior to placement of fill, the bottom
was made level, scarified, watered and compacted.
Subsequent fills were placed in 6 to 8 inch loose lifts and compacted to a minimum of 90
percent.
IMPROVMENTS
Utility services
Sewer main and water installed in June -September 2017.
Fire water line in August 2017.
Gas service line installed in October 2017.
Street improvements in May 2019
Interior utilities
Sewer and water were backfilled with birds eye/ pea gravel to avoid damage from mechanical
compaction.
Foundations
Foundations were excavated per plan and penetrate the bearing soils a min of 24". All building
foundations were observed before pouring of concrete with capillary break, 1 Smill visqueen,
sand and steel ready for pour, 1/25/18.
Foundations for sound walls were observed July 2017.
Foundations for screen wall patios observed in February 2019
TESTING
Maximum density optimum moisture relationship determinations were performed for each soil
type encountered during grading operations. Test results were as follows:
Laboratory Standard: (ASTM: D-1557)
4 inch dia. mold; 1/30 cu.ft.vol.;
5 layers-25 blows per layer;
10 lb. hammer dropped 18 inches
STRATA-TECH ,INC.
GEOCO N SUL.TANTS
TMS Highland Investments, LLC
As-Built Compaction Report 4
COMPACTION TEST RESULTS
Test Below Moisture Dry Unit Soil Proposed Content Weight No. Location Type Grade (ft) % (Lbs!fr3)
1 Building Pad A 4 10.8 116.2 I
2 Building Pad A 4 10.2 115.8 I
3 Building Pad A 3 11.1 116.8 I
4 Building Pad A 2 10.5 116.9 I
5 Building Pad A 2 9.4 114.9 I
6 Building Pad A 2 9.8 116.2 I
7 Building Pad C 4 9.9 115.1 I
8 Building Pad C 4 11.1 112.1 I
9 Building Pad B 4 10.1 112.7 I
10 Building Pad B 4 9.9 114.7 I
11 Building Pad C 2.5 11.1 113.2 I
12 Building Pad C 1 10.5 112.0 I
13 Building Pad C 1 9.9 112.7 I
14 Building Pad B R.G. 8.6 115.2 I
15 Building Pad B R.G. 9.4 115.1 I
16 Building Pad C R.G. 8.8 115.2 I
17 Building Pad C R.G 8.1 115.6 I
18 Building Pad A FG 9.2 117.4 I
19 Building Pad A FG 9.1 117.3
20 Building Pad B FG 9.8 116.5
21 Building Pad B FG 9.8 118.3
22 Building Pad C FG 10.4 116.8
23 Building Pad C FG 10.6 118.2
24 See plan 2.5 9.7 112.0
25 " 1.0 10.1 117.4
26 " 3.5 11.0 116.9
27 " 2 9.8 119.4
28 " 2.5 10.8 118.7
28 " 2 8.9 121.9
29 " 1 11.5 123.4
30 1 11.4 120.0
W.O. 273114
September 21. 2019
%Relative Date Compaction
91.5 4-17-17
91.2
92.0
92.1 4-18-17
90.5
91.5
90.7 4-19-17
91.1
91.6 4-20-17
92.5
91.2
90.3
90.4 4-21-17
92.3 4-24-17
91.2
91.4
91.2
92.5 11-8-17
92.4
91.8
93.2 11-17-17
92.0
93.1
90.3 2-11-19
92.4
92.1
94.0
93.6
96.0
97.2
94.4
'STRATA-TECH,INC.
GE □CO N SUL.TANTS
1MS Highland hwestments, LLC
As-Built Compaction Report
Test
No. Location
31 "
32 CG
33 CG
34 CG
35 CG
36 CG
37 D
38 D
39 D
40 D
41 D
R. G.: rough grade
FG: finish grade
G:gas
W: water
F:fore line
S: sewer
D: drive
CG: curb gutters
SG: subgrade
Below
Proposed
Grade (ft)
1
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
Moisture
Content
%
9.7
10.2
9.3
10.5
9.9
9.8
11.1
11.2
10.7
10.3
10.6
5
Dry Unit Soil Weight Type (Lbs!ft3)
121.9 I
123.1 I
122.0 I
121.5 I
120.9 I
121.0 I
121.5 I
120.8 I
121.9 I
121 .0 I
122.0 I
W.O. 273114
September 21, 2019
%Relative
Compaction Date
96.1
96.9 5-5-19
96.0
95.6
95.2
95.3 5-6-19
95.6 4-9-19
95.1
96.
95.2
96.0