Deer Park Wastewater Storage Lagoon No Reservoir Report
Last Updated: December 15, 2025
Deer Park Wastewater Storage Lagoon No, located in Spokane, Washington, serves as a vital water resource facility for the local community.
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Summary
Owned by the Local Government and regulated by the Washington Dept of Ecology, this lagoon was completed in 1997 and has a maximum storage capacity of 94 acre-feet. The lagoon, with a structural height of 10.85 feet and a hydraulic height of 42.85 feet, plays a crucial role in managing wastewater and protecting the environment.
With a drainage area of 0.02 square miles and associated with Tr-Dragoon Creek, Deer Park Wastewater Storage Lagoon No is designed as an Earth dam with Rockfill core types. The facility is inspected regularly, with the last assessment in May 2019 indicating a fair condition. However, it has a high hazard potential, emphasizing the importance of maintaining its structural integrity. As a key component of the local water infrastructure, this lagoon underscores the intersection of water resource management and environmental stewardship in the face of climate change challenges.
Deer Park Wastewater Storage Lagoon No embodies the critical role that water infrastructure plays in safeguarding communities and ecosystems. As a state-regulated facility with a clear purpose of water management, it stands as a testament to the collaborative efforts between local governments and regulatory agencies to ensure the safety and sustainability of water resources. With ongoing inspections and risk assessments, this lagoon serves as a model for effective water resource management in the context of evolving climate conditions and environmental concerns.
Year Completed |
1997 |
Dam Length |
2183 |
River Or Stream |
Tr-Dragoon Creek |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
42.85 |
Drainage Area |
0.02 |
Nid Storage |
94 |
Structural Height |
10.85 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
43 |
Seasonal Comparison
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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.
Deer Park Wastewater Storage Lagoon No