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Reference Evapotranspiration (Eto) Amounts:
Jan Feb Mar Apr Mav June July Aua SeDt Oct Nov Dec
Total Yearly Eto: 55.60 inches
P.O.C. 'D' WATER USE CALCULATIONS & SCHEDULING
Irrigation System Information:
Station 'Plant Factol Irr Tvoe ` sa ft area Dot ° Efficiencv' GPM ' Run Days` Cvcle/Dav' Hvdrozone� Notes
A15
0.5
Drip - 18"
742
0.43
90%
3.71
5
2
Moderate
Potable
A16
0.2
Drip - 18"
2,216
0.43
90%
11.10
5
2
Low
Potable
A17
0.5
Bubbler
11
1.00
90%
5.50
5
2
Moderate
Potable
A18
0.2
Drip - 18"
1,438
0.43
90%
7.20
5
2
Low
Potable
A19
0.5
Drip - 18"
2,401
0.43
90%
12.00
5
2
Moderate
Potable
A20
0.5
Bubbler
12
1.00
90%
6.00
5
2
Moderate
Potable
Establishment Irrigation Schedule
Station
Run Days
per week
Cycles
(Start times)
Jan
Feb
Mar
Apr
Minutes per Cycle
May June July
Aug
Sept
Oct
Nov
Dec
A15
5
2
5
6
9
11
13 16 18
17
14
10
6
5
A16
5
2
2
3
4
4
5 6 7
7
5
4
2
2
A17
5
2
2
3
4
5
6 7 8
7
6
4
3
2
A18
5
2
2
3
4
4
5 6 7
7
5
4
2
2
A19
5
2
5
6
9
11
13 16 18
17
14
10
6
5
A20
5
2
2
3
4
5
6 7 8
7
6
4
3
2
Established Irrigation Schedule
Station
Run Days
per week
Cycles
(Start times)
Jan
Feb
Mar
Apr
Minutes per Cycle
May June July
Aug
Sept
Oct
Nov
Dec
A15
5
2
4
5
7
9
11 13 15
14
11
8
5
4
A16
5
2
2
2
3
4
4 5 6
6
5
3
2
2
A17
5
2
2
2
3
4
5 6 7
6
5
4
2
2
A18
5
2
2
2
3
4
4 5 6
6
5
3
2
2
A19
5
2
4
5
7
9
11 13 15
14
11
8
5
4
A20
5
2
2
2
3
4
5 6 7
6
5
4
2
2
NOTE:
FOR THE ESTABLISHMENT PERIOD, THE CONTRACTOR IS TO SELECT THE APPROPRIATE
90 DAY PERIOD (I.E. MAY,JUNE,JULY) FROM THE ANNUAL SCHEDULE PROVIDED
RUN TIMES COMPLY WITH RECLAIMED WATERING WINDOW REQUIREMENTS
PRESSURE LOSS CALCULATIONS
Reference Evapotranspiration (ET")
VALVE #
'A19'
GPM
12.0 GPM
WATER METER'A' (1 1/2")
0.4
BALL VALVES (2")
1.5
BACKFLOW PREVENTER (2")
12.0
FLOW METER
1.2
MASTER VALVE (2")
1.6
VALVE
2.9
MAINLINE (850'@ 2")
0.6
LATERAL LINE
(5.0 MAX.)
ELEVATION CHANGE (UP GRADE 21.1')
9.1
FITTING LOSS (10%)
3.4
TOTAL PRESSURE LOSS
37.7
MINIMUM OPERATING PRESSURE
30
DESIGN PRESSURE REQUIRED
67.7
AVAILABLE PRESSURE (P.O.C.)
114.0
SET PRESSURE REGULATOR @:
75.0
RESIDUAL PRESSURE REMAINING
+7.3
IRRIGATION DESIGN CRITERIA -'A' (POTABLE WATER)
Name of Water Supplier: West Valley Water District 1-4-2017
Pressure Given By: Angela @ Engineering (909) 875-1322
AVAILABLE WATER PRESSURE - 114 PSI
ZONE 7
HIGHEST ELEVATION ON THIS SYSTEM 71.0 104.9 PSI
LOWEST ELEVATION ON THIS SYSTEM 52.6 112.8 PSI
WATER METER ELEVATION = 49.9 114.0 PSI
Contractor shall verify the static water pressure with supplier prior to installation. If different
from PSI noted above, Contractor to notify Owner for instructions. Failure to do so will result in
contractor being responsible for changes that might occur.
California Water Efficient Landscape Worksheet
Reference Evapotranspiration (ET")
1 55.6
Project Type
I Non -Residential
1 0.45
Hydrozone # /Planting
Descriptions
Plant Factor
(PF)
Irrigation
I Method
Irrigation
Efficiency (IE)`
I ETAF
(PRIE)
Landscape
I Area (Sq. Ft.)
I ETAF x
lArea
Estimated Total
Water Use (ETVVU)d
Regular Landscape Areas
Drip - Mod (Potable)
0.5
Drip
0.81
0.62
3143
1940
66880
Drip - Low (Potable)
0.2
Drip
0.81
0.25
3654
902
31 101
Bubbler- Mod (Potable)
0.2
Overhead
0.75
0.27
23
6
211
Q
i-+
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0-
0.75
0.00
0
0
0.75
0.00
0
0
0.75
0.00
0
0
Totals
6820
2848
98193
Special Landscape Areas
1 0 0
1 0 0
1 0 0
1 0 0
Aw"Totals
0 0 0
ETWU Total 98193
Maximum Allowed Water Allowance (MAWA)e 105795
ETAF Calculations
Reaular Landscape Areas
Total ETAF x Area
2848
Total Area
6820
Average ETAF
0.42
All Landscape Areas
Total ETAF x Area
8
Total Area %k
E6820
Average ETAF
0.42
Average ETAF for Regular Landscape
Areas must be 0.55 or below for
residential areas, and 0.45 or below
for non-residential areas.
NOTE:
- TOTAL AREA ABOVE IS AN ADJUSTED TOTAL FOR IRRIGATION CALCULATION
PURPOSES ONLY
- ACTUAL TOTAL LANDSCAPE AREA IS 6,797 SQ. FT.
I LANDSCAPE PLANS
DRAWN IM
at least 2 days
before you dig
Know what's below. CHECKED BYi
Call before you dig.
CITRUS AVENUE MEDIAN
(STA. 115+00 TO 123+00)
IRRIGATION
rp1A
AS SHOWN
S I T E S® A P I@
Landscape Architecture
and Planning
3190 62 Airport Loop Drive
Costa Mesa, CA 92626
Richard Polhumue, License CA -#2782
(949) 644-9370 (714) 210-3140 FAX
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