HomeMy WebLinkAboutFile Documents.395 Thunderbowl Ln.0153.2017 (51).ARBKWEL Comment #3 04.26.2018
Page: IR-1.0 IRRIGATION LEGEND AND NOTES
Author: mollys
Date: 4/26/2018 2:51:09 PM
Because sod area in irrigation zone A1 has changed to a fescue from a buffalo grass it is no longer a very low water use, but a low water use. please change.
IR-1.0 IRRIGATION LEGEND AND NOTES (1)
Page: Z.02A HYDROZONE AND PLANTING PLAN
Author: mollys
Date: 4/26/2018 3:20:09 PM
Plants listed in zone one are now medium water use plants.
Z.02A HYDROZONE AND PLANTING PLAN (2)
Page: Z.02A HYDROZONE AND PLANTING PLAN
Author: mollys
Date: 4/26/2018 3:06:52 PM
Missing statement:
"I have complied with the criteria of the Water Efficient Landscaping Standards and applied them for the efficient use of water in the landscape design plan”
The specific irrigation water needs of each hydrozone in the design should be determined using the following formula and factors:
Irrigation Water Budget = [(ETo x Plant Factor) - Re] x Irrigated Area + Irrigation Efficiency x 0.623
Where:
ETo = Reference Evapotranspiration = 27.4 inches/season (May through September)
Re = Effective Precipitation = 6.8 inches/season (May through September)
Irrigated Area = Hydrozone Area in Square Feet
Water Use Category Plant Factor Irrigation Method Default Efficiency
Cool Season Turf 0.90 Overhead 75%
High 0.80 Drip 90%
Medium 0.65
Low 0.40
Very Low 0.25
SECTION B. HYDROZONE INFORMATION TABLE AND WATER BUDGET CALCULATION:
Complete the hydrozone table for each hydrozone. Use as many rows as necessary to provide the square footage of landscape are per hydrozone.
Reference ET
27.4 inches/year
17.1 gallons/square foot
Effective Precipitation
6.8 inches/year
4.2 gallons/square foot
Hydrozone Plant Water Use Type(s)Plant Factor Irrigation Method Irrigation Efficiency
Hydrozone
Area Plant Water Need
(Sq. Ft.)(gal/season)
Example L 0.40 Drip 0.90 2000 5759
Zone 1 VL 0.25 Rotary 0.75 1827 76
Zone 2 M 0.65 Drip 0.90 771.5 5880
Zone 3 L 0.40 Drip 0.90 1710.3 4925
Zone 4 M 0.65 Drip 0.90 656.8 5006
Zone 5 M 0.65 Drip 0.90 1271.2 9688
Zone 6 L 0.40 Drip 0.90 529.8 1526
Zone 7 L 0.40 Rotary 0.75 3590 12406
Zone 8 L 0.40 Rotary 0.75 1410 4872
Zone 9 L 0.40 Rotary 0.75 3780 13062
Zone 10 L 0.40 Rotary 0.75 2905 10038
Zone 11 L 0.40 Rotary 0.75 1869 6458
Zone 12 L 0.40 Rotary 0.75 2520 8708
Zone 13 M 0.65 Rotary-Rooftop 0.75 800 7317
Zone 14 M 0.65 Rotary-Rooftop 0.75 900 8231
Zone 15 L 0.40 Drip 0.90 675 1944
TOTAL 25215.6 100137
AVERAGE IRRIGATION WATER NEED - ALL ZONES* - In gallons/sq. ft./season 4.0
* The average must be less than the Maximum Applied Water Budget of 7.5 gallons/sq.ft./season.
Total area of irrigated
public right-of-way:0 Sq. Ft.
Total area of
non-irrigated landscape:0 Sq. Ft.
0.25
14
A1
1"
RST SSTLST
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A
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RGK
2
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Because sod area in
irrigation zone A1 has
changed to a fescue
from a buffalo grass it
is no longer a very
low water use, but a
low water use. please
change.
pervious)
RASS = VERY LOW WATER USE (1827 SF)
WILD FLOWER SEED= LOW WATER USE (16,074 SF)
VERY LOW WATER USE (2699 sf)
ATIVE GRASS & WILD FLOWER SEED = LOW WATER USE (1,700
Plants listed in zone
one are now medium
water use plants.
1
As
All ideas, desig
indicated or rep
owned by and ar
Architects, PC a
conjunction wi
of the ideas, de
shall be used b
whatsoever wit
of David Johnst
HRUB
NATIVE GRASS & WILD FLOWER SEED = LOW WATER USE (1,700 SF)
SEED SPECIFICATIONS AT SHEET Z.02B
Missing statement:
"I have complied with the criteria of the Water Efficient
Landscaping Standards and applied them for the efficient
use of water in the landscape design plan”
05/01/2018