Loon Lake Sewer Dist No 4 Waste Lagoon

Offstream· Stevens, Washington· Built 1998· Other·
Low Hazard Other Public Utility

Key Takeaway

Loon Lake Sewer Dist No 4 Waste Lagoon is classified as low hazard in Washington. It was completed in 1998 and is 28 years old. Its primary use is other.

Physical Details

Dam TypeOther
Max Storage87 acre-ft
Normal Storage73 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge5 cfs
Year Completed1998 (28 years old)
Year Modified1998
NID IDWA00667

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: November 9, 2023
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Loon Lake Sewer Dist No 4

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Loon Lake Sewer Dist No 4 Waste Lagoon?

Loon Lake Sewer Dist No 4 Waste Lagoon is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Loon Lake Sewer Dist No 4 Waste Lagoon?

Loon Lake Sewer Dist No 4 Waste Lagoon is owned by Loon Lake Sewer Dist No 4 (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Loon Lake Sewer Dist No 4 Waste Lagoon built?

Loon Lake Sewer Dist No 4 Waste Lagoon was completed in 1998, making it 28 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Loon Lake Sewer Dist No 4 Waste Lagoon?

Loon Lake Sewer Dist No 4 Waste Lagoon serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Loon Lake Sewer Dist No 4 Waste Lagoon last inspected?

Loon Lake Sewer Dist No 4 Waste Lagoon was last inspected on November 9, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.