Watts Bros Organic Dairy Lagoon 1 Reservoir Report
Last Updated: December 14, 2025
Watts Bros Organic Dairy Lagoon 1 is a significant earth dam located in Benton, Washington, built in 2007 with a primary purpose of serving as a storage facility.
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Summary
The lagoon has a structural height of 21 feet and a hydraulic height of 13 feet, with a storage capacity of 43 acre-feet and a normal storage level of 33.4 acre-feet. It covers an area of 3.1 acres and is situated offstream from Glade Creek.
Managed by a private owner, Watts Bros Organic Dairy Lagoon 1 is regulated by the Washington Dept of Ecology and undergoes regular inspections to ensure its fair condition and significant hazard potential are adequately managed. The dam is designed by SCM Consultants and is part of a network of dams in the area that contribute to water resource management and environmental conservation efforts. This lagoon plays a crucial role in maintaining water levels and quality for the surrounding community and ecosystem.
With a focus on sustainability and responsible resource management, Watts Bros Organic Dairy Lagoon 1 serves as a key infrastructure for the local agricultural operations and contributes to the overall water resilience in the region. As climate change continues to impact water resources, the proper maintenance and monitoring of dams like this are essential to ensure the safety and sustainability of water supplies for future generations.
Year Completed |
2007 |
Dam Length |
2700 |
River Or Stream |
Offstream - Glade Creek |
Primary Dam Type |
Earth |
Surface Area |
3.1 |
Hydraulic Height |
13 |
Drainage Area |
0.01 |
Nid Storage |
43 |
Structural Height |
21 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Umatilla River Near Umatilla
|
516cfs |
Yakima River At Kiona
|
23800cfs |
Yakima River At Mabton
|
28900cfs |
Granger Drain At Granger
|
13cfs |
Walla Walla River Near Touchet
|
1040cfs |
Willow Creek At Morgan Street
|
2cfs |
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.
Watts Bros Organic Dairy Lagoon 1