Colville Wastewater Lagoons Dam
Colville Wastewater Lagoons
Colville Wastewater Lagoons, located in Stevens County, Washington, serve as an offstream storage facility for the Colville River. Built in 1967, these earth dams have a hydraulic height of 7 feet and a length of 5400 feet, providing a storage capacity of 260 acre-feet for wastewater treatment purposes. The lagoons are state-regulated by the Washington Department of Ecology, with state permitting, inspection, and enforcement in place to ensure compliance with environmental standards.
Despite being categorized as having a low hazard potential, the condition of the Colville Wastewater Lagoons is currently not rated, and no emergency action plan (EAP) or inundation maps have been prepared. The lagoons have not been modified in recent years, and there have been no reported incidents or risks associated with the facility. As water resource and climate enthusiasts, it is crucial to monitor and assess the condition of critical infrastructure like the Colville Wastewater Lagoons to ensure their safe operation and environmental impact.
The lagoons' primary purpose as a wastewater treatment facility highlights the importance of responsible water management in safeguarding local water resources and ecosystems. As advocates for sustainable water practices, it is essential to support ongoing monitoring and maintenance efforts for facilities like the Colville Wastewater Lagoons to uphold water quality standards and protect the surrounding environment for future generations.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Colville Wastewater Lagoons -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Colville River At Kettle Falls | 63 cfs | → |
| Pend Oreille River Below Box Canyon Near Ione | 22,800 cfs | → |
| Kettle River Near Laurier | 854 cfs | → |
| Columbia River At International Boundary | 101,000 cfs | → |
| Outlet Creek Near Metaline Falls | 19 cfs | → |
| Priest R Outflow Nr Coolin | 216 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Colville Wastewater Lagoons.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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More reservoirs
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About Colville Wastewater Lagoons
Where does the data for Colville Wastewater Lagoons come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card below for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
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.
- 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.
- 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.
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, environmental 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.