1995-4191 EX/G 5L SOVKERN CALIFORNIA
T SCtI. & TESTING, INC.
h28U Riverdale Street, Sun Diego, CA 92120
P.O. Box 600627. San Diego, CA 97.16(1 - 0627
619.280 -4321, FAX 619 - 280.4717
March 29, 1995
Mr. Glenn K. Rich SCS &T $921037
5332 Mount Burnham Drive Report No. 8
San Diego, California 92111
SUBJECT: Compaction Verification Letter, Proposed Residence, 1316 Neptune Avenue,
Encinitas, California.
REFERENCE: "Response to Correction List and Additional Recommendations, Proposed
Residence; Southern California Soil and Testing, Inc;.; June 3, 1994.
Dear Mr. Rich;
This letter has been prepared to verify that Southern California Soil and Testing, Inc., has
performed in - place density tests to determine the relative compaction of the foundation soils for
the proposed property ine retaining walls (Pha ase I per lens re
b { P n prepared by La Caste Engineering,
dated February 1, 1995). The tests indicate relative compactions exceeding the minimum 90
percent required. A formal report presenting the locations and results of our in -place density tests
will he submitted after the rest of the work is finished.
If you should have any questions regarding this report, please do not hesitate to contact this office.
This opportunity to be of professional service is sincerely appreciated.
Respecif illy submitted,
SOUTHERN CALIFORNIA SOIL AND TESTING, INC.
"101B. , it. .E. #3 7 ��Q4ESSIphgr
DBA :mw �!
cc: (3) Submitted NU. 36037
(3) La Costa Engineering 4g EXP. 6- 30 - 9�a
OF CAI��
SC
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' SUMMARY OF
IN -PLACE DENSITY TESTS
t PROPOSED RESIDENTIAL PROJECT
1316 NEPTUNE AVENUE
ENCINITAS, CALIFORNIA
PREPARED FOR:
LA COSTA ENGINEERING
1967 NORTH HIGHWAY 101, SUITE B
ENCINITAS, CALIFORNIA 92024
PREPARED BY:
SOUTHERN CALIFORNIA SOIL AND TESTING, INC.
' 6280 RIVERDALE STREET
SAN DIEGO, CALIFORNIA 92120
Providing Professional Engineering g f g g Services Since 1959
SOUTHERN CALIFORNIA
SOIL &TESTING, INC.
' 6280 Riverdale Street, San Diego, CA 92120
P.O. Box 600627, San Diego, CA 92160 -0627
619 - 280 -4321, FAX 619 - 280 -4717
May 4, 1995
La Costa Engineering SCS &T 8921037
1967 North Highway 101, Suite B Report No. 9
Encinitas, California 92024
SUBJECT: Summary of In -Place Density Tests, Proposed Residential Project, 1316 Neptune
' Avenue, Encinitas, California.
Gentlemen:
' In accordance with re our request, this report has been prepared to summarize the results of the in-
Y q P P P
' place density tests performed at the subject site by Southern California Soil and Testing, Inc.
These tests were performed between March 27 and April 28, 1995.
SITE DESCRIPTION
The subject site is located at 1316 Neptune Avenue, in the City of Encinitas, California. The areas
' tested were associated with the construction of perimeter retaining walls as well as small
miscellaneous retaining walls west of the existing structure.
' SCOPE OF SERVICE
' The scope of our work consisted of performing in -place density tests on the foundation soils of the
perimeter retaining walls as well as the backfill of said wall. In addition, the backfill of small
' retaining walls west from the structure were also tested. The tests were performed on an on -call
basis. Where observed, compaction was performed using a hand whacker.
AVAILABLE PLANS
To assist in determining the locations and elevations of our field density tests and to define the
' general extent of the site grading for this phase of work, we were provided with a grading plan
(site retaining wall details) prepared by La Costa Engineering, dated February 1, 1995.
' SCS &T 8921037 May 4, 1995 Page 2
FIELD TESTING
' Field density tests were performed by Southern California Soil and Testing, Inc. The density tests
were taken according to ASTM D1556 -82 (sand cone) and D2922 -81 (nuclear gauge). The
' location and results of those tests are shown on the attached plates. The locations and elevations
of the in -situ tests were determined in accordance with survey control provided by other than
' Southern California Soil and Testing, Inc. representatives. Unless otherwise noted, their locations
and elevations were determined by pacing and hand level methods and should be considered
accurate only to the degree implied by the method used.
' LABORATORY TESTS
' Maximum dry density determinations were performed on a representative sample of the soils used
in the compacted fills according to ASTM D1557 -78, Methods A and C. Method A specifies that
a four (4) inch diameter cylindrical mold of 1/30 cubic foot volume be used and that the soil tested
be placed in five (5) equal layers with each layer compacted by twenty -five (25) blows of a 10-
' pound hammer with an 18 -inch drop. Method C specifies that a six (6) inch diameter cylindrical
mold of 1/13 cubic foot volume be used and that the soil tested be placed in five (5) equal layers
with each layer compacted by fifty -six (56) blows of a 10 -pound hammer with an 18 -inch drop.
The results of these tests, as presented on Plate Number 2, were used in conjunction with the field
' density tests to calculate the degree of relative compaction of the compacted fill.
' CONCLUSIONS
' Based on our field observations and the in -place density test results, it is the opinion of Southern
California Soil and Testing, Inc. that the grading work was performed substantially in accordance
with the City of Encinitas grading ordinance, and the Uniform Building Code. Recommendations
' for the minimum design of foundations, as presented in the referenced report, remain applicable.
LIMITATIONS
i only services performed between March 27 April 2 1 limited
'
This report covers o y the se ces p o bet ee arc and p 1 8, 995. As 1 ted
by the scope of the services which we agreed to perform, our opinions presented herein is based
' on our observations and the relative compaction tests results. Our services were performed in
accordance with the currently accepted standards of practice and in such a manner as to provide
SCS &T 8921037 May 4, 1995 Page 3
' a reasonable measure of the compliance of the backfill operations with the job requirements. No
warranty, express or implied, is given or intended with respect to the services which we have
' performed, and neither the performance of those services nor the submittal of this report should
be construed as relieving the contractor of his primary responsibility to conform with the job
' requirements.
' If you should have any questions after reviewing this report, please do not hesitate to contact this
office. This opportunity to be of professional service is sincerely appreciated.
Respectfully Submitted,
' SOU HERN LIFORNIA SOIL AND TESTING, INC.
pFESS /
' Daniel B. Adler, R.C. . #36037 B. A���F
DBA:mw CC N0. 36031
' ♦c
EXP. 6-30-96
cc: (3) Submitted CIV11r �!
(3) Mr. Glenn K. Rich lglf OF CAFE
SOU TI ERN CALIFORNIA SOIL & TESTING, INC.
T 6280 RNERDALE STREET, P.O. BOX 600627, SAN DIEGO, CA. 92160 (619) 280 -4321
747 ENTERPRISE STREET, ESCONDMO, CA. 92025, (619) 746 -4544
OMPRESSIVE STRENGTH TEST REPORT
ILE NUMBER 8921037 DATE: Apr. 7 1995 ❑ CONCRETE (ASTM C39)
ROJECT TITLE Rich Residence ❑ MORTAR (UBC 24 -22)
ROJECT LOCATION 1316 Neptune 93 GROUT (ASTM C1019)
RCHITECT
PERMIT No. [:1 PRISMS (ASTM E447)
NGINEER La Costa Engineering ❑
ONTRACTOR Sierra Cascade Concrete PLAN FILE No.
OCATION IN STRUCTURE Retaining Walls
M ATERIAL SUPPLIER Superior Ready Mix
A DMIXTURE(S) POZZ
IX DESIGNATION 68P
T IME IN MIXER, MINUTES
SLUMP, INCHES
SAMPLES FABRICATED BY L.C.E.
SAMPLES TESTED BY COD TRUCK No. 543 TICKET No 254752
LABORATORY No 8685 8686 8687
MARK
DATE MADE 04 -03 -95
DATE RECEIVED 04 -06 -95
DATE TESTED 04 -06 -95 04 -10 -95 05 -01-95
DIAMETER, INCHES 6.00
AREA. SQUARE INCHES 28. 27
MAXIMUM LOAD, LBS 61,000 81,750 120,500
COMPRESSIVE STRENGTH, PSI 2,160 2,890 4 , 260
AGE TESTED. DAYS 3 7 28
REQUIRED 28 DAY STRENGTH, PSI 2,000
UNIT WT. /CU. FT. (PLASTIC) /.., v..
DISTRIBUTION (3) La Costa Engineering
(3) Glenn K. Rich
(1) Superior Ready Mix
SOZJTIERN CALIFORNIA
SOIL & TESTING, INC.
REVIEWED BY• � �Z, t '�
Michael B. Wheeler, R.C.E. #45358
JOB NAME: 1316 NEPTUNE AVENUE JOB NO: 8921037
' IN PEA CE DENSITY TESTS
ELEVATION MOISTURE DRY DENSITY SOIL REL. COMP.
TEST DATE LOCATION feet, MSL (percent) .c.f. TYPE (percent
1 3/27/95 See Site Plan 76.5 9.0 119.9 1 99.1
1 2 3/27/95 See Site Plan - 76.5 8.8 116.7 1 96.4
3 3/27/95 See Site Plan 69.5 8.6 118.3 1 97.8
4 3/27/95 See Site Plan 69.0 8.9 111.0 1 91.7
' 5 3/27/95 See Site Plan 74.5 9.6 116.9 1 96.6
6 3/28/95 See Site Plan 69.0 8.8 116.3 1 96.1
7 3/28/95 See Site Plan 76.0 10.8 115.6 1 95.5
8 4/12/95 See Site Plan 74.0 11.8 120.3 1 99.4
9 4/12/95 See Site Plan 74.0 11.3 114.8 1 94.9
10 4/12/95 See Site Plan 76.0 12.6 119.3 1 98.6
11 4/12/95 See Site Plan 77.0 9.8 112.7 1 93.1
12 4/29/95 See Site Plan 84.0 7.5 116.9 1 96.6 *
13 4/29/95 See Site Plan 85.5 7.5 115.9 1 95.8 *
* Sand Cone Test
' MAXIMUM DEN'SM U. OPTIMUM. MOISTURE: SUMMARY: ASTM D155:7
SOIL TYPE SOIL DESCRIPTION OPTIMUM MOISTURE, % MAXIMUM DENSITY, pcf
1 9.0 121.0
1
r
PLATE NO: 2