Annual Water Use Table - Irrigation Plan#
Instructions
- Irrigated areas for each zone should be a "best estimate," splitting areas between zones as necessary. For drip irrigation, the irrigated area should estimate the area actually wetted by the emitters.
- Determine the average annual water use (in gallons per square foot) by referring to the hydrozones listed on the Water Use Table on the landscape plan.
- Determine the annual total water use (in gallons) by multiplying the irrigated area (in square feet) by the average gallons per square foot for that zone.
- Divide the total water use by the irrigated area to determine overall gallons per square foot (not to exceed 15 gal./s.f.).
| Zone I.D. |
Irrigated Area (s.f.) |
Hydrozone |
Water Use (gal./s.f.) |
Total Water Use (gal.) |
|---|---|---|---|---|
| A1 | 6,380 | Moderate | 14 | 89,320 |
| A2 | 8,100 | Moderate | 14 | 113,400 |
| A3 | 5,330 | High | 18 | 95,940 |
| A4 | 1,500 | High | 18 | 27,000 |
| A5 | 820 | Low | 8 | 6,560 |
| A6 | 490 | Low | 8 | 3,920 |
| TOTAL | 22,620 | Avg*: 14.9 | 336,140 | |
| *must not exceed 15 gal./s.f./season | ||||
Did You Know?
Ensuring programmable thermostats are programmed correctly can save energy and costs.
Shrubs and trees require less water than bluegrass, so it's best to water them separately.
Rebates are available for 1.1 gallons per flush, WaterSense-labeled toilets.