Goldendale Wastewater Pond 2 Reservoir Report

Last Updated: December 14, 2025

Goldendale Wastewater Pond 2, located in Wahkiacus, Washington, is a vital water resource facility owned and regulated by the local government.


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Summary

This Earth-type dam, completed in 1983, serves as a storage reservoir with a maximum capacity of 116 acre-feet and a normal storage level of 89 acre-feet. The pond covers an area of 12 acres and has a drainage area of 0.22 square miles, providing critical water management for the surrounding area.

Managed by the Washington Dept of Ecology, Goldendale Wastewater Pond 2 is designed to handle a maximum discharge of 20 cubic feet per second, ensuring efficient water flow and control during peak periods. With a low hazard potential and a structural height of 19 feet, this facility plays a crucial role in maintaining water quality and availability in the region. Despite its importance, the dam's condition assessment is currently marked as 'Not Rated', highlighting the need for ongoing monitoring and maintenance to ensure its long-term functionality.

As an essential component of the local water infrastructure, Goldendale Wastewater Pond 2 contributes to the overall water resource management in Klickitat County, Washington. With its strategic location and purpose, this facility underscores the importance of sustainable water management practices in the face of changing climate conditions. Water resource and climate enthusiasts can appreciate the role that this dam plays in safeguarding water supply and mitigating potential risks in the region.

Year Completed

1983

Dam Length

1500

River Or Stream

Tr-Klickitat-Offstream

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

19

Drainage Area

0.22

Nid Storage

116

Structural Height

19

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

19
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.