HomeMy WebLinkAbout; La Costa Various; Soils Report; 1978-03-09-
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BENTON ENGINEERING. INC.
APCUED *aI. M~CH*N,Cs - FO”ND*T#ON.
67,7 CONVO” COURT .*I4 DlEGO. CALIFORNIA 021*3
March 9, 1978 T*L~.*O*I ,734, sss.,ess PHILIP “LNKINO .ENTON
l “r.IosNI C,Y#L ~WTI”ll”
Sunset Pacific Home Builders
4600 Palisades Drive
Corlsbad, California 92008
Attention: Mr. Mike R&on
Subject: Project No. 78-3-7M
Moisture Contents in Subgrade Soils
Lot 215 of La Costa Vale Unit No. 1
Lots 437, 451, and 472 of La Costa South Unit No. 6
Lots 498 and 578 of La Cc&a South Unit No. 7
Lot 12 of La Costa Meadows Unit No. 1, and
Lot 454 of La Costa Meadows Unit No. 3
Carlsbad, California
Gentlemen:
This is to report the results of tests to determine the moirtmxe contents of the soils in the upper
three feet below finished yrnde in the proposed building areas ot the subject sites.in Carlsbad,
California.
The soil samples were obtained on March 7, 1978 and the results of the moisture determinations
are presented OS follows:
Depth of
Sample Below Moisture
Existina Grade Content
Subdivision
La Costa Vale Unit No. 1
Lot
No.
215
La Costa South Unit No. 6 437
Approximate
Location of Samples
Southeasterly portion of
proposed building area
Northwesterly portion of
proposed building area
Northerly portion of
proposed building area
Southerly portion of
proposed building area
(in Lt, (% dry wt)
1.0 17.0
2.0 19.4
3.0 20.9
1.0 23.4
2.0 17.4
3.0 14.7
1 .o 17.8
2.0 24.4
3.0 15.9
1.0 18.5
2.0 21.2
3.0 16.6
Project No. 78-3-7M
Sunset Pacific Home Builders
Subdivision
Lo Costa South Unit No. 6
(Continued)
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Lo Costa South Unot No. 7 498
Lot
No. -
451
472
578
Lo Costa Meadows Unit No. 1 12
-2- March 9, 1978
Approximote
Locat ion of Samples
Southwesterly portion of
proposed building oreo
Northeasterly portion of
proposed building area
Westerly portion of
proposed building oreo
Easterly portion of
proposed building oreo
Eorterly portion of
proposed building oreo
Westerly portion of
proposed building oreo
Easterly portion of
proposed building area
Westerly portion of
proposed building oreo
Southeasterly portion of
proposed building area
Northwesterly portion of
proposed building oreo
Depth of
Sample Below Moisture
Existing Grade Content
(in feet) (% dry wt)
1 .o
2.0
3.0
1.0
2.0
3.0
1.0
2.0
3.0
1 .o
2.0
3.0
1.0
2.0
3.0
1.0
2.0
3.0
1.0
2.0
3.0
1.0
2.0
3.0
1 .o
2.0
3.0
1 .o
2.0
3.0
24.2
25.4
17.9
16.6
15.9
15.3
11.6
12.5
11.8
16.9
10.2
9.3
17.1
13.8
13.0
14.8
15.7
11.2
26.9
20.8
17.1
22.2
21.9
23.6
23.7
21.5
21.1
24.9
21.5
20.0
BENTON CNO1NEE”INO. INC,
Project No. 78-3-7M
Sunset Pacific Home Builders
-3- March 9, 1978
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Depth of
Sample Below Moisture
Lot Approximote Existing Grade Content
Subdivision No. Location of Samples (in feet) (‘3~ dry wt) -
Lo Costa Meadows Unit No. 3 454 Northwesterly portion of 1 .o 15.0
proposed building area 2.0 14.9
3.0 15.0
Southeasterly portion of 1 .o 16.0
proposed building Oreo 2.0 16.9
3.0 17.7
It is concluded from the field observations of the various soil types and the final results of the
moisture determinations that the soils in the upper three feet below finkhed gr,Jde at the loco-
tions sampled have been sufficiently moistened to minimize the potential expansion of the soils,
as recommended in our previous reports on these subdivi:ions.
Respectfully submitted,
BENTON ENGINEERING, INC.
BY gP/ -z4&&4
R .C .-Remer
Reviewed by
Distribution: (3) Addressee
RCR :dr
BENTON ENGINLEIINO. #NC