HomeMy WebLinkAboutFile Documents.506 E Main St.0054.2019 (4).ACBKCity of Aspen Water Efficient Landscaping Ordinance City of Aspen Parks and Recreation Dept.
Pre-Submission Packet Completeness Review 585 Cemetery Lane
Aspen, CO 81611
WATER EFFICIENT LANDSCAPE WORKSHEET -- WATER BUDGET ANALYSIS 970-920-5582
Address:Contact Info:
CALCULATING GALLONS OF WATER NEEDED BY PLANT CATEGORY AND IRRIGATION TYPEThe specific irrigation water needs of each hydrozone in the design should be determined using the following formula and factors:
Where:
ETo = Reference Evapotranspiration in inches/season (May - Sept.)
Re = Effective Precipitation in inches/season (May - Sept.)27.4 inches/year
Irrigated Area = Hydrozone Area in Square Feet 17.1 gallons/square foot
Water Use Category Plant Factor Code 6.8 inches/year
Cool Season Turf 0.90 VH 4.2 gallons/square foot
High 0.80 H
Medium 0.65 M
Low 0.40 L Irrigation Method Default Efficiency
Very Low 0.25 VL Overhead 75%
Drip 90%
HYDROZONE 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.
904 Sq. Ft.
1384 Sq. Ft.
Hydrozone
Area Plant Water Need
(Sq. Ft.)(gal/season)
Example Drip 2000 5759
Zone 1 Overhead 2362 8162
Zone 2 Drip 172 1311
Zone 3 Drip 487 1402
Zone 4 Drip 1062 8094
Zone 5 Overhead 1617 20309
Zone 6 Overhead 628 7887
Zone 7 #DIV/0!
Zone 8 #DIV/0!
Zone 9 #DIV/0!
Zone 10 #DIV/0!
TOTAL 6328 47166
7.5
0.80 0.75
Hydrozone
Note: Project Applicant must complete this worksheet as it is a required element of the Landscape & Irrigation Documentation Package.
Britni Johnson, Stan Clauson Associates 970.925.2323
Reference Evapotranspiration
Hydrozones Efficiency
Total area of non-irrigated landscape:
Directions for Use
506 E. Main St. Ste. 300, Aspen, Colorado 81611
Plant Factor
0.80
Irrigation Method Irrigation Efficiency
0.75L
Total area of irrigated public right-of-way:
0.75
0.40
M 0.65
* The average must be less than the Maximum Applied Water Budget of 7.5 gallons/sq.ft./season.
AVERAGE IRRIGATION WATER NEED - ALL ZONES* - In gallons/sq. ft./season
0.90
M 0.65
L 0.40 0.90
L 0.40
0.90
Fill in these blue sections below. Some
columns have drop down menus to assist
you in filling out. The formulas will
calculate the site average annual water
use. Once completed you may either
attach this document to the submital
packet or insert it into the design set.
Irrigation Efficiency
Effective Precipitation
Irrigation Water Budget = [(ETo x Plant Factor) - Re] x Irrigated Area / Irrigation Efficiency x 0.623
H
H
0.90
Plant Water Use Type(s)
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