Palo Verde Evaporation Pond #1
Key Takeaway
Palo Verde Evaporation Pond #1 is classified as high hazard in Arizona. It was completed in 1981 and is 45 years old. Its primary use is other. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 51.1% in AZ) |
| Dam Length | 13,400 ft |
| Dam Type | Earth |
| Max Storage | 6.6K acre-ft |
| Normal Storage | 5.4K acre-ft |
| Surface Area | 264 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1981 (45 years old) |
| NID ID | AZ00201 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ARIZONA PUBLIC SERVICE COMPANY, PHOENIX OFFICE
Public Utility
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Palo Verde Evaporation Pond #1?
Palo Verde Evaporation Pond #1 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Palo Verde Evaporation Pond #1?
Palo Verde Evaporation Pond #1 is owned by ARIZONA PUBLIC SERVICE COMPANY, PHOENIX OFFICE (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Palo Verde Evaporation Pond #1 built?
Palo Verde Evaporation Pond #1 was completed in 1981, making it 45 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Palo Verde Evaporation Pond #1?
Palo Verde Evaporation Pond #1 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Palo Verde Evaporation Pond #1?
Palo Verde Evaporation Pond #1 has a dam height of 30 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Palo Verde Evaporation Pond #1 last inspected?
Palo Verde Evaporation Pond #1 was last inspected on May 20, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.