Harold Reservoir
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Los Angeles |
| Nearest City | Palmdale |
| River/Stream | Tr Antelope Val |
| Coordinates | 34.54610, -118.11150 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 2,800 ft |
| Year Completed | 1891 (135 years old) |
Storage & Hydraulics
| NID Storage | 3,870 acre-ft |
| Max Storage | 3,870 acre-ft |
| Surface Area | 218 acres |
| Drainage Area | 4 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Palmdale Water District |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/01/2025 |
| Emergency Action Plan | Yes |