Wastewater Storage Reservoir Report

Last Updated: December 5, 2025

Located in Folsom, California, the Wastewater Storage dam stands as a crucial structure for water resource management in the area.


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Summary

Built in 1978, this earth-type dam plays a vital role in flood risk reduction, irrigation, and water supply. With a height of 75 feet and a storage capacity of 212 acre-feet, the dam serves as a reliable source for water storage and management.

Regulated by the Department of Water Resources and Safety of Dams, the Wastewater Storage dam undergoes regular inspections to ensure its structural integrity. With a low hazard potential and a satisfactory condition assessment, the dam is equipped to handle emergencies and meet guidelines for risk management. Its location on the Tr Smuthers Ravine, along with its proximity to the San Francisco District, highlights its importance in the region's water infrastructure.

As a local government-owned structure, the Wastewater Storage dam exemplifies the collaborative efforts in maintaining water resources for the community. With its primary purpose being water supply, the dam plays a critical role in ensuring a sustainable water source for various needs. Its strategic design and construction, coupled with state regulation and inspection, make it a key asset in safeguarding against water-related risks and ensuring efficient water management for the residents of Placer County, California.

Year Completed

1978

Dam Length

385

Dam Height

75

River Or Stream

Tr Smuthers Ravine

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

71

Drainage Area

0.15

Nid Storage

212

Hazard Potential

Low

Nid Height

75
       
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.