Svcsd Reclamation Pond 1 is an earth dam located in Sonoma County, California, built in 1990. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 3,437 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Svcsd Reclamation Pond 1
The primary purpose of Svcsd Reclamation Pond 1 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Sonoma County Water Agency (local government). It impounds the Offstream.
The dam stands 17 feet tall and stretches 3,437 feet across, creates a reservoir covering 11 acres, and has a maximum storage capacity of 166 acre-feet. Completed in 1990, the structure is 36 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/08/2025.
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Location
| State | California |
| County | Sonoma |
| River/Stream | Offstream |
| Coordinates | 38.21900, -122.39040 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 3,437 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 166 acre-ft |
| Max Storage | 166 acre-ft |
| Surface Area | 11 acres |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Sonoma County Water Agency |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/08/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA01407 |
| Federal ID | CA01407 |
| More Info | State Dam Safety Program |