HomeMy WebLinkAboutWater Budget Calculator_Chick-Fil-ASECTION 3 - WATER BUDGET AREA CALCULATOR
The Water Budget Area is the Total Lot Area minus the Building Footprint, Walkways, Hardscape (e.g. sidewalk, pavers, or driveway), Exemptions (e.g. edible gardens or retention ponds), and Artificial Plant Material areas.
Category Area (sq. ft.)
Total Lot Area 200,463
Building Footprint 6,320
Hardscape (e.g. sidewalk or
pavers)159,883
Walkways 0
Exemptions (e.g. retention
pond)3,461
Artificial Plant Materials 0
Water Budget Area (sq. ft.)30,799
WATER BUDGET CALCULATOR
Hydrozones are a portion of the landscaped area which has plants with similar water needs grouped together that are typically irrigated by one valve or station with the same irrigation type.
When different plant factors are grouped in one hydrozone, the highest plant factor determines the hydrozone water use category.
For example, 0.1 and 0.3 plant factor species hydrozoned together would be placed into the low, or 0.3, hydrozone water use category.
Another example, drip irrigation with temporary overhead irrigation would be placed into the drip irrigation's hydrozone water use category.
Bare mulch areas are included as part of its adjacent hydrozone to account for any future plantings in that area.
Section 3 Water Budget Calculator for developments subject to BMC 38.550.040 (e.g. plats, site plans, planned development zones). Water budget not to exceed 8 gal/square foot.
Water Budget Area (sq. ft.)30,799
Hydrozone Water Use
Category
Plant Factor
(PF)Net ETo Irrigation
Type
Irrigation
Efficiency
High 0.8 26 Overhead 0.7
Medium 0.6 26 Drip 0.9
Medium 0.6 26 Overhead 0.7
Low 0.3 26 Drip 0.9
Low 0.3 26 Overhead 0.7
Very Low 0.1 26 Drip 0.9
Very Low 0.1 26 Overhead 0.7
Temporary Irrigation 0.1 26 Overhead 0.7
Tree Water Calculator
Tree Water Use
Category
Plant Factor
(PF)Net ETo Irrigation
Efficiency
Irrigation
gallons per
sq. ft.
High 0.8 26 0.9 14.3
Medium 0.6 26 0.9 10.7
Low 0.3 26 0.9 5.4
Very Low 0.1 26 0.9 1.8
Reference Tables
Plant Factor Reference Table*Irrigation Efficiency Table
Plant Type
Hydrozone
Water Use
Category
Selected
Plant Factor
(PF)
Irrigation
Type
Turfgrass cool season/water High 0.8 Overhead
Annual Flowers High 0.8 Drip
Warm season turfgrass Medium 0.6
Woody plants and herbacious
perennials Medium 0.6
Drought adapted woody
plants and herbacious
perennials Low 0.3
Drought Tolerant Very Low 0.1
Areas with temporary
irrigation only
Temporary
Irrigation 0.1
*Refer to plant list for exact species plant factors.
The Water Budget Area is the Total Lot Area minus the Building Footprint, Walkways, Hardscape (e.g. sidewalk, pavers, or driveway), Exemptions (e.g. edible gardens or retention ponds), and Artificial Plant Material areas.
Hydrozones are a portion of the landscaped area which has plants with similar water needs grouped together that are typically irrigated by one valve or station with the same irrigation type.
When different plant factors are grouped in one hydrozone, the highest plant factor determines the hydrozone water use category.
For example, 0.1 and 0.3 plant factor species hydrozoned together would be placed into the low, or 0.3, hydrozone water use category.
Another example, drip irrigation with temporary overhead irrigation would be placed into the drip irrigation's hydrozone water use category.
Bare mulch areas are included as part of its adjacent hydrozone to account for any future plantings in that area.
Section 3 Water Budget Calculator for developments subject to BMC 38.550.040 (e.g. plats, site plans, planned development zones). Water budget not to exceed 8 gal/square foot.
Irrigation
gallons per
sq. ft.
Sq. Ft.Water Use
(gal)
Percent of Total
Water Budget
Area
Percent of
Total
Irrigation
Demand
18.4 - - 0%0%
10.7 - - 0%0%
13.8 - - 0%0%
5.4 20,271 108,923 66%57%
6.9 10,528 72,733 34%38%
1.8 - - 0%0%
2.3 - - 0%0%
2.3 - - 0%0%
Total Area 30,799
Number of
Trees Sq. Ft.Water Use
(gal)
Percent of Total
Water Budget
Area
Percent of
Total
Irrigation
Demand
- - - 0%0%
- - - 0%0%
52 1,456 7,824 5%4%
14 392 702 1%0%
TOTAL WATER USE 190,182
GAL/SF (AVG)6.2
Not to exceed 8 GAL/SF.
Irrigation Efficiency Table
Irrigation
Efficiency
0.7
0.9