Ochoa Ob-3 Process Water Storage Lagoon Reservoir Report
Last Updated: December 15, 2025
The Ochoa Ob-3 Process Water Storage Lagoon, located in Warden, Washington, is a private-owned facility regulated by the Washington Dept of Ecology.
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Summary
Completed in 2009, this offstream lagoon serves as a vital resource for the surrounding area, with a maximum storage capacity of 361 acre-feet and a normal storage capacity of 306 acre-feet. The lagoon's primary purpose is designated as 'Other', highlighting its importance in managing water resources in the region.
Designed by Stewart Hilmes, P.E., the Ochoa Ob-3 lagoon stands at a hydraulic height of 32 feet, with a structural height matching that measurement. Its earth dam, constructed with stone core and soil foundation, spans 2000 feet in length and covers a surface area of 16.4 acres. The facility's hazard potential is rated as 'High' with a fair condition assessment as of the last inspection in August 2020, emphasizing the need for continued monitoring and maintenance to ensure its safety and functionality for the community.
With its critical role in water storage and management, the Ochoa Ob-3 Process Water Storage Lagoon serves as a key infrastructure in Adams County, Washington. Its construction and regulatory oversight demonstrate a commitment to sustainable water resource management, showcasing the importance of such facilities in mitigating climate-related challenges. As climate enthusiasts, understanding the intricacies of water storage systems like the Ochoa Ob-3 lagoon is essential in promoting resilience and adaptability in the face of changing environmental conditions.
Year Completed |
2009 |
Dam Length |
2000 |
River Or Stream |
offstream drains toLind Coulee |
Primary Dam Type |
Earth |
Surface Area |
16.4 |
Hydraulic Height |
32 |
Nid Storage |
361 |
Structural Height |
32 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Crab Creek Near Moses Lake
|
26cfs |
Crab Creek At Irby
|
2cfs |
Coal Creek At Mohler
|
1cfs |
Palouse River At Hooper
|
645cfs |
Crab Creek Near Beverly
|
160cfs |
Wilson Creek Below Corbett Draw Near Almira
|
0cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Ochoa Ob-3 Process Water Storage Lagoon