HomeMy WebLinkAboutCT 07-05; LA COSTA GREENS NEIGHBOROOD 1.3; SEWER STUDY; 2008-04-04·.I '.,
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PLANNING
ENGINEERING
SURVEYING
IRVINE
LOS ANGELES
RIVERSIDE
SAN DIEGO
ARIZONA
HUNSAKER
&ASSOClATES
5 AND lEG 0, INC.
SEWER STUDY
for
LA COSTA GREENS
NEIGHBORHOOD 1.3
CT 07-05
in the City of CarlSbadq 0 7 ~
Prepared for:
Colrich Communities
4747 Morena Blvd.
Suite 100
San Diego, CA 92117
Hunsaker & Associates
San Diego, Inc.
W.O. 2301-15
April 4, 2008
DAVE HAMMAR
LEX WILLIMAN
ALiSAVIALPANDO ~
DAN SMITH
RAYMARTIN -L::""".~~-+p~:,--------
CHUCK CATER David A. lalock, R.C.E.
9707 Waples Street
San Diego, CA 92121
(8S8) 558·4500 PH
(85B) 558·1414 FX
www.HunsakerSD.com
Info@HunsakerSD.com
DB,kc h'\reportsI2301115\Sewer study·01 doc
w 0 2301-15 4/10/2008 "08 PM
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La Costa Greens, Neighborhood 1.3
Sewer Study
TABLE OF CONTENTS
Design Criteria
Sewer Input Data and Performance
Sewer Study Map
SECTION
II
III
DB:p mswordlh:\reportsI2301\15\sewer study·Ol.doc
wo 2352·11601-15 41412008
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La Costa Greens, Neighborhood 1.3
Sewer Study
Design Criteria
38 Dwelling Units
Demand
Peak Factor
Maximum Depth
Roughness, n
220 gal/cap/day
2.5
0.50 diameter
0.011 for PVC
Sample ~ Calculation
Peak Flow = Dwelling Units x Demand x Peak Factor
Peak Flow = 38 units x 220 gal/unit day X 2.5
Peak Flow = 20,900 gal/day (
1 cfs ) 646,300 gal/day
Peak Flow = 0.0323 cfs
DB:p mswordlh:lreportsI2301l151sewer study-01,.doc
wo 2352-11601-15 4/4/2008
- ----
FOR: CITY OF CARLSBAD
w.o. 2301-15
BY: PhiliQ Brand
DWELLING
LINE # FROMMH TOMH UNITS PER
LINE
8-1 16 15 4
8-2 15 14 1
8-3 14 13 4
8-4 13 12 5
8-5 12 10 0
8-6 11 10 8
8-7 10 9 3
8-8 9 8 0
8-9 8 7 0
8-10 7 6 5
8-11 6 5 2
8-12 5 4 3
8-13 4 3 3
8-14 3 2 0
8-15 2 1 0
".
--- -----
SEWER STUDY SUMMARY
'La Costa Greens N. 1.3
IN·LlNE PEAKI AVC. PEAK DESIGN FLOW LINE SIZE DESIGN VELOCITY
D.U.'s RATIO (INCHES) SLOPE(%) dn (FEET) dniD (F.P,S.) M.G.D. C.F.S.
4 2.5 0.002 0.003 8 1.34 0.03 0.04 0.73
5 2.5 0.003 0.004 8 1 0.03 0.04 0.91
9 2.5 0.005 0.008 8 1 0.04 0.06 0.90
14 2.5 0.008 0.012 8 1.02 0.05 0.07 1.11
14 2.5 0.008 0.012 8 1.02 0.05 0.07 1.11
8 2.5 0.004 0.007 8 1.21 0.03 0.05 1.04
25 2.5 0.014 0.021 8 2 0.05 0.08 1.63
25 2.5 0.014 0.021 8 1.94 0.05 0.08 1.63
25 2.5 0.014 0.021 8 1.01 . 0.06 0.09 ' 1.37
30 2.5 0.017 0.026 8 1 0.07 0.10 1.40
32 2.5 0,018 0.027 8 2.02 0.06 0.09 1.75
35 2.5 0.019 0.030 8 2 0.06 0.09 1.91
38 2.5 0.021 0.032 8 19.88 0.04 0.06 3.79
38 3.5 0.029 0.045 8 1E-06 0.67 1.00 0.13
38 4.5 0.038 0.058 8 4.89 0.07 0.10 3.20
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SH 1 OF 1 I -
DATE 4/4/2008
REFER TO DWG. NO.:
COMMENTS
8ump modelled as slope near zero.
Sewer Study Summary N 1,3.xls
4/412008
-
LA COSTA GREENS
NEIGHBORHOOD 1.3
SEWER STUDY MAP
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LEGEND
~ DIRECTION OF FLOW
~ 4" SEWER LA TERAL o LINE NUMBER
o SEWER MANHOLE
RI\0510\ScEng\Exhllolts\NEIGHBORHOOD 1.3\EX OLSE\oIER STUDY EXHIBIT,dwg[]Apr-04-2008114I08 -.-----------------