Valley R Center-CS 870406TO
ALBERT H. HALFF ASSOCIA*; cS, INC.
Engineers and Scientists
8616 Northwest Plaza Drive
DALLAS, TEXAS 75225
Telephone (214) 739-0094
WE ARE SENDING YOU [] Attached [] Under separate cover via the following items:
[] Shop drawings [] Prints [] Plans [] Tracings [] Specifications
[] Copy of letter [] Change order []
C~ES DATE NO. DESCRIPTION
/ .~D-I~ - .~%-~"7, %D-Iq
/ / ?~,,,,.,' b..~, _t~ ~~_
/ / ~'~ ~~~.~
THESE ARE TRANSMITTED as checked below:
[] For approval
[] For your use
[] As requested
[] For review and comment
[] FOR BIDS DUE
[] Approved as submitted
[] Approved as noted
[] Returned for corrections
19
[] Resubmit
[] Submit
[] Return
copies for approval
copies for distribution
corrected prints
__ [] PRINTS RETURNED AFTER LOAN TO US
SIGNED: v ~ ~
ORIGAMI, INC, ' DS ~
~-~?o? If e~losu~s a~ n~ as ~ed, kindly n~ us ~ on
SANITARY cc
_WER DEMAND
RECEIVED APR 0 ? :JB? i
ZONE
ZONE B
ZONE C
P~KWA¥
SANITARY SEWER DESIGN CHART
IAF,:EA NO. ~ AREA I POPUL. :AVG. FLON i PEAKING i !NFiLT. ~PSAK FLOWiPIPE SiZE~
I (AC.) ~ ', (MGD) ~ FACTOR ~ (MGD) ~ (MGD) I /GRADE I
! I ii;9 ~ 2592 ~ 0.078 i 5.50 ~ 0.002 ~ 0.275 ~B"l 0.32%1
',' ~ I0.0 I 456 i 0.0i.5. ' 4,00 ; 0 &? i 0,0,,, ~S"/
ZONE B ',
IAREA NO. : AREA ~ POP~. IA~.FLOW I PEAKING I INFILT. :PEAK FLOW:PIPE SIZEi
I (AC.) : ~ (HSD) I FACTOR I (MGD) I (MGD) i /GRADE
S I 29.7 ~ 1294 I 0.059 i 5.75 I 0.006 I 0,!52 ~8'!t 0.52%1
4 I 29,3 I ~.o I 0,038 I ~,75 I 0,006 I 0. i48
ZONE C
IAREA NO. I AREA : POPUL, IAVS.FLOW : PEAKING I tNFiLT. ~PEAK FLOWIPIPE SIZEI
: (AC.) : : (MGD) I FACTOR I (MGD) I (MGD) : /GRADE
5 I 20.6 I 896 : 0..027 : ~.83 : 0,004 : 0,107 IS"/ 0.~92%1
DALLY WATER DENAI~D
RECEIVED APR 0 7 1987
RETAIL Land Use:
Area - 11.9 Acres
ASSUNE:
50Z coverage
lZ person per 100 square feet
30 gallon per day per person
5~ landscape area irrigated l"/week
POPLUATION = 11.9 Acre x ~u~l_~x 0.5 x J..p.~o]l
Acre 2
100 ft
- 2,592 persons
Avg. Domestic Water Demand = 2,592 persons x ~
person
77,760 gpd
2
Irrigation Water Demand = 11.9 Acres x ~3.560 it x 0.05 x 0.833 f~ x 1 ~eak x ~
Acres Week 7 Days 3
ft
' 2,307 gpd
OFFICE SHO~ROOH Land Use:
Area - 10.0 + 29.7 + 29.3 +20.6 - 89.6 Acres
Assume:
50~ Coverage
50I of Coverage is office and 50I is warehouse
1 person per 250 square feet
30 gallons per day per person
15I landscape area irrgated 1'/week
2
Population - 89.6 x ~3560 it x 0.50 x 0.50 x l_l~.Led~
Acre 2
250 ft
-3,903 persons
Avg. Domestic #ater and Sever Demand - 3,~03 persons x ~
person
= 117,090 gpd
Irrigation Water Demand - 86.9 Acres x /O_~L~2~L_x 0.15 x 0.0833 f~ x 1 ve~k x Acres Week 7 Days
= 52,112 gpd
· SUNNARY:
Domestic
Irrlga~[on
77,760
2,307
117,090
.~2,112
19~, 850
2&9,269 8pd