HomeMy WebLinkAbout4226 W Kent Ave - Misc. PermitIL*,
Inc.
April 16, 2019
Amir Aznavian
25072 Adelanto Drive
Laguna Hills, CA 92677
Subject: Report of Summarized Field and Laboratory Compaction Test Results
for Swimming Pool Abandonment at 4226 West Kent Avenue, Santa
Ana, CA
HGEI Proiect No. 19-O3-38O1
Dear Mr. Aznavian:
Imported fill material placed in the above-referenced swimming pool has been tested by a
member of our staff as requested. This report summarizes the results of field and laboratory
tests which were performed periodically on February 27 thru April 4,2019. Prior to backfilling
the pool shell was provided with drainage consisting of (5) small sections removed in the pool
shell bottom and the area filled with open graded gravel with a geotextile fabric on top of the
gravel prior to soil placement. The former pool varied in depth from 2-8 feet.
Backfill Placement & Compaction
The former pool was located in the rear yard of the existing property as shown on the attached
plan, made from google maps, Plate A.
Laboratory & Field Testing
Fill material consisting of import soil was tested in our laboratory for maximum dry
density/optimum moisture content. The result of the test is summarized in the attached Table
1.
Field density testing was performed using the Nuclear Gauge Method (ASTM Test Method
D6938) during our site visits and were compared to the laboratory maximum dry density to
determine the relative compaction of the backfill material during compaction. All density tests
resulted in compaction of at least 85 percent. Broken pieces of the pool shell was incorporated
into the fill which was mixed with the import soil. Random probing of the soils was done to
verifo uniformity of the backfill being compacted. The test results are summarized in the
attached Table 2.
1590 N. Brian Street, Orange, CA 92867-3406 FAx (714) 637-3096 PHONE (714) 637-3093
Please visit our website at www.haninotono@tedni@1.@m
AMIR AZNAVIAN
HGEI Project No. 19-03-3801
April 16, 2O19
Page 2
Conc lusio n
Based on the compaction test data reported herein, it has been concluded that the backfill
material placed to fill the former swimming pool has been sufficiently compacted and is
expected to perform satisfactorily (non-structural).
This report should be reviewed, and additional testing and analysis conducted as necessary if
any future construction is planned in, near or around the former swimming pool backfill area.
The possibility of differential settlements could occur across sections of unforeseen or differing
soils.
Very truly yours,
HARRINGTON GEOTECHNICAL ENGINEERING, INC.
)"1r4
e L. Welch, P.E.
ior Geotechnical Engineer l,JI
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Attachments
(3 copies submitted)
1590 N. Brian Street, Orange, CA 92867-3406 FAX (714) 637-3096 PHONE (714) 637-3093
Please visit our webslle al www.haninotonoetednical.@m
We appreciate this opportunity to be of service and trust this report meets your current needs.
Please call if you have any questions or if we can be of further assistance.
-/'--.
AMIR AZNAVIAN
HGEI Project No. 19-03-3801
April 16, 2019
Page 3
* Acceptable relative compaction (non-structural)
1590 N. Brian Street, Orange, CA 92867-3406 FAX (714) 637-3096 PHONE (714) 637-3093
Please visit our websile al www,haffinotong@tednical.@m
Sample ID Classification Maximum Dry
DensiW (pco
Optimum Moisture (o/o)
1 Brown silty clay 114.0 16.0
Depth (ft)Field
Moisture
(o/o)
Dry
Density
(pcf)Test Fiil
Date Test
No.Test
TYpe
Location Sample
Id
Relative
Compaction
(o/o)
314119 1 NG See Plate A 1 25 99 0 2 87*
3l29l19 2
NG See Plate A 1 18 105 0 2 92*
414119 3
NG See Plate A 1 19 98 0 4 g6*
1 19 99 0 6 87x4141194
NG See Plate A
Table l-Compaction Test Results (ASTM D1557)
Table 2 -Field Density Tests (ASTM Test Method D6938)
It*,Lon
Inc
LEGEND:
X4= APPROXIMATE LOCATION OF FIELD DENSITY TEST
HGEI Pro.ject No. 19-03-3801
PLATE A
1590 N. Brian Street, Orange, CA 92867-3406 FAX (714) 637 -3096 PHONE (714) 637-3093
Please visit our webslte at www.harinotono@dnical.@n
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