1995-4260 G/CN
?JI(¡ Ý
Category
1 t{- /UJ /l1 () jJ /0 I¿
Name (
Plan ck. #
recdescv
Street Address
I
C¡39(JL
Serial #
Description
}V¡q 4
Year
..,
8
8
Olsen's Carwash
Final Soils Report Continued:
Based on our review of the "Preliminary Soil Investigation", all associated
reports and results of tests and observations, we hereby certify that all
soil related work on the project has been completed in accordance with
our recommendations and the approved plans and specifications of the City
of Encinitas. All fills placed on the project have been compacted to above
90 % of maximum dry density. Subgrade and Base materials in the Public
Right-of-way of EI Camino Real have been compacted to above the required
95 % of maximum dry density.
The site has been properly prepared, graded and compacted and is
suitable for its intended use.
If you should have any questions after reviewing this report, please do not
hesitate to call. We appreciate this opportunity to provide our
professional services.
Certified:
Scenic Coast Building Sciences
1!11lL~~-------
W. M. Hubbard, RCE 7193
Tue, Dec 19, 1995
-2564 F-
Page 2
. BY""" '";;!"""h""B m"DATEB
CHKO"£,"-,., B'h" DATEB:' ,
8ÐJECTB
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MAR 28 1995
EN~li\¡EERii\C FiV:C!::'::;
",¡TY OF FNC!i\f¡-¡'f!,~~')
- "-H ,," .,-
'.
HYDROLOGY STUDY
@ 127 S. ~L CAMINO REAL
ENCINITAS CA.
ALGERT ENGINEERING, INC.
c,." C"""<EE"""',IA/JO SVAvCYING, LA"O """",,%
428 BROADWAY
CHULA VISTA, CA 91910
(619) 420.7090
D \"rF~ ., l':Þn '~r;
,1/11r:C I-! ~, r;r::PT R CE 19':'73
'Î
- .
, .
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8
'8
2. OF II
RUì\OFF COEFF ICIENTS (RATIONAL ~1ETHOD)
LAND USE
Coefficient, C
Soil Group (1)
B C
.35 .40
D
,45
A
Undeveloped
Residential:
Rura 1
.30
,30 ..35 ,40 ,45
.40 .45 .50 ,55
~
.45 .50 .60 .70
.45 .50 .55 .65
. iO . i5 ,80 @
. SO .85 .90 ,95
Single Family
~ ulti-Units
l>1obile Homes (2)
Commercial (2)
80% Impervious
Industrial (2)
90% Impervious
NOTES:
(1) Obtain soil group from maps on file with the Department of Sanitation
and Flood Control.
(2) Where actual conditions deviate significantly from the tabulated
imperviousness values of 80% or 90%, the values given for coefficie~t
C, may be revised by multiplying 80% or 90% by the ratio of actual
imperviousness to the tabulated imperviousness. However, in no case
shall the final coefficient be less than 0.50. For example: Consiùer
commercial property on D soil group.
Actual imperviousness
= 50%
Tabulated imperviousness = 80%
Revised C = ~ X 0.85 = 0.53
A;'>?E\~';:: ;\
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SAN DIEGO COUNTY
DEPARTMENT OF SPECIAL DISTRICT SERVICES
DESIGN MANUA~,
APPROVED /5, /1, ~~~A1 ,-
COMPUTATION OF EFFECTIVE SLOPE
FOR NATURAL WATERSHEDS
DATE /:1../1;'1
APPENDIX X- =
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I ADD TEN MINUTES T°:1'
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CENTRATION.
~--==-~.::::::' =--=-.--
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10
200
H
L
7é
NOMOGRAPH FOR DETERM/NATrON
OF TIME OF CONCENTRATION CTe)
FOR NATURAL WATERSHEDS
DlTE /2./1/69 AP?E:NDIX X-t.
" . or ;r" ~I;'
SAN DI EGO COUNTY
DEPARTMENT OF SPECIAL DISTRICT SERVICES
DESIGN MANUAL
APPROVED ,~. ,/.,/. /~~ ~~"
l
8
8
S OF-II
¿¿RB/?# /?REh'S t)V'ERL/lA/¿; TIME éJF FLtJW CURVES
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SAN 01 EGO COUNTY
DEPARTMENT OF SPECIAL DISTRICT SERVICES
DESIGN MANUAL.
. -', /-t' ç~
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URBAN AREAS OVERlA~D TIME
OF FLOW CURVES
1'2. /1/1 t¡
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A='='ENDf X X - C
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JNTENSITY~DUMTION DESIGN CHART
---:..-.~.:;-:.:-, ~.'~-
. ---.-. _0> '..
- - . --" "
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. - .. .. - '.. .
, -. --- --,.. ..
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,
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,,-
,1.- ,.,-,.
. .1
-
10 .
15
20
30
40 50 1
Duration
"
2 3
Hours
4
5
6
Directions for Application:
1) From precipitation r'laps detennine 6 hr. and
24 hr. amounts for the selected frequency.
These maps are printed in the County Hydrolo.
Manual (lOa 50 and 100 yr. maps included in t
Design and Procedure Manual).
2) Adjust 6 hr. precipitation (if necessary) so
that it is within the range of 45% to 65% of
the 24 hr. precipitation. (Not ilrrl icable
to Desert)
3) Plot 6 hr. precipitation on the riaht side
of the chart.
4) Draw a line through the point parallel to thl
plotted lines.
5) This line is the intensity-duration curve fo!
the location being analyzed.
Application Form:
0) Sel ected Frequency I CC> yr.
1) P6 = 2.~ in.. P24=~. *P6 =
P24
in.
c; I %*
2) Adjusted *P 6= 2,7
3) tc = \5,0 - min.
4) I = ~ u 3o! in/hr.
*Not Applicable to Desert Region
Revis~d 1/85 APPENDIX XI-^
-
- -__I
L --j
.ll
<:::I
COUUTY OF' SAN DIEGO
DEPARTMENT OF' SANITATION &.
FLOOD CONTROL
~
Prep"+'d by
45'
.
30' :
33°
.
45'
NATIONAL OCEANIC AND AT~OSPIIERIC AD~IINISTRATION
SPECIAL STUDIES BRANCH. OFFICE OF IIi JlROLOGY. NATIONAL WEATHER SERVICE
U,S, DEPARTMEN/r OF COMMERCE
"
30'
118'
45'
30'
IS'
11]°
3D'
15 .
116°
Revised 1/85
APPENDIX XI-E
--
,
'-
, -" - 0'
1°
LL
~
~'
COUNTY OF SAN DIEGO
DEPARTMENT OF SANITATIon &
FLOOD CONTROL
_330
...,
45'
.
301
151
.
0-0-
451
Prcra+-<I b,
U.s. DEPARTMEN/r OF COMMERCE
NATIONAL OCIi^:-;IC AND A°r:.\OS"IIEHIC AOMINISTHATION
,~~qAL ITOO",' 0." C"-3::' C< 0' ~ ".OLOC Y - .MO~ AL 'UT" '" IE. YOLE
1111"
II~ '
)01
Pi 1
1170
I ~i '
10'
r,1
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Revised 1.1/85
APPENDIX XI -II
8Y,_. m..'".,. "'B"- 0,1, TEu.,U,,?,?',u .UBJECT ...u..,.,~!j[)EÞ~'{BU'~~~
CHKD, BY u. D~ TEu.'m_m'u .u.uJ~,J.n,ß. ..1:::1- CA\I'INO. .ßJ::Ahunu"uhn_,
SHEETNO,u,~u- OF u..lulmu.,
.JOB NO. _nu_.?ZM......uu
um_." mm'mu"",.m
U" "UU"'"U"U""m,
" U"'hu"'h"U'hUBU"'. "'"
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,CALcu LA\" l ON '5 ~
A~EA ~I ~
( ËXJSTI t-JG ~RO\"J Dm: H)
'.
t -= 0.65
1-; S. '7 . UJ/~
A -= O. OΠ~.
Q, Q:) ~ C.LA.
Q\DO ;:: (O.~£X3,'l)(O,OZ8)
62100-= O,O~c..,F~
ARi::.I-\ II ßJI ~
c:::; Q,ßE"
L -:::; 3'7 I~/HR
A ~ Ó. 144A::...,
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Q'OD::: 0, 45 c'FS.
AREA. /I C II g
c = 0,8.5
:r; 3ft n~ / t-\P.-.
A :: (). ~~fok.
~ICV =- (O,6?X3,Î )(0, 3~)
&(100:;' 1.0(0 C.t=:S.
AREA lID 1-' g
G -;: 0.85
.:r -= ô.l.' tN.1HR.
A~ O.\ê.lk.
~\fo -::. (o.~5)( 3,ïX 0, 1s,7)
QIOD:;' O,5B3CF~.
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(CAP.Acny Ct\E.e.J...))
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( PRIVATE')
w/ IZ'~I2.'1
f::>R.COKS t:x:»(
"
ARËP\~ ~ C I., CZ~C~ ,C
c. = 0,008 Ac..,
c.z ::; o. 00, ~
C~ := a,os,=, k
C4 '= O. 1"2.Z;1 ~.
TO11\L. ~ O. \3,?c...
~ \C:.1-J Q.. :.
G..\OO : Cor ~ .
~OD -= (O.ð~)(3Iï)( 0 ,l~7)
QIOO ::: 0, <02 CF~.
n::::.O.o\\
5=- ð.O?:>5
A-:= o,¡e,s
r ~ o. 503
Q.6...Pk-ny = (I .4&:. X.l\)(rZI5) (~"Ž.)
n ..
CiCA9k"ry = ll.4ß~l,1ß!)lQ,!'ð~(o.olg~) \~>O,bfu
0,01:
o,KJ
C 1/ t:þ 'Þ.v,c, @ 2, 5 ~C> "-'I 12.." YIL" t3tZco~ ~x I
Q;::' (1.4-6~)(~)(o:)ß/:5)((),ðz.s-~) . Zl&c..~ >o,gj;:
- CA1"I><-<'T'{ /'J. K -
0,0\1 (..../. -
CZ -r-C=, ::::: 0, 0 ~~~,
....-'
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