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 | ||||
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