Water Storage
| Lake Cuyamaca 8,195 acre feet of water storage capacity Earthen dam first built in 1887 Lake Cuyamaca captures watershed runoff. Helix owns and operates the dam and reservoir. |
| Lake Jennings 9,790 acre feet of water storage capacity Earthen dam built in 1965 Lake Jennings primarily stores imported water from the Colorado River and Northern California. Helix owns and operates the dam and reservoir and provides camping, fishing, boating and other recreation. |
| El Capitan Reservoir 10,000 acre feet of water storage rights The city of San Diego owns and operates El Capitan Reservoir. Helix traded ownership of Lake Murray for water storage rights in El Capitan because it is at a higher elevation, which allows delivery of the water by gravity to the R.M. Levy Water Treatment Plant. |