Waitt Lk Valley Sewage Treatment Lagoon dam
Waitt Lk Valley Sewage Treatment Lagoon
Located in Stevens County, Washington, the Waitt Lake Valley Sewage Treatment Lagoon is a crucial infrastructure owned by the local government. This sewage treatment facility is regulated and permitted by the Washington Department of Ecology, ensuring that it meets state standards for environmental protection. Completed in 1998, the lagoon has a hydraulic height of 10 feet and a storage capacity of 109 acre-feet, with a normal storage level of 78 acre-feet.
The primary purpose of the Waitt Lake Valley Sewage Treatment Lagoon is to manage wastewater in an earth dam structure, serving as a vital component in maintaining water quality in the region. Despite its low hazard potential, the facility has not been rated for its condition assessment. With a surface area of 7.91 acres, the lagoon plays a key role in treating sewage from the surrounding area and ensuring safe water discharge into the Colville River. Climate and water resource enthusiasts will find this infrastructure essential in understanding how wastewater is managed in a sustainable and environmentally responsible manner.
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.
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 Waitt Lk Valley Sewage Treatment Lagoon -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chamokane Creek Below Falls Near Long Lake | 30 cfs | → |
| Little Spokane River At Elk | 48 cfs | → |
| Spokane River Below Nine Mile Dam At Spokane | 6,350 cfs | → |
| Little Spokane River Near Dartford | 437 cfs | → |
| Little Spokane River At Dartford | 187 cfs | → |
| Colville River At Kettle Falls | 177 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Waitt Lk Valley Sewage Treatment Lagoon.
Boat launches
- Viewpoint Road 61, Newport
- Pow Wow Park, Cusick
- Pondoray Shores Road, Newport
- South Shore Diamond Lake Road 765-1255, Newport
- Black Lake-Squaw Creek Road 1976-2198, Colville
- Highway 25 1834-1836, Kettle Falls
Track Waitt Lk Valley Sewage Treatment Lagoon in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Waitt Lk Valley Sewage Treatment Lagoon
Where does the data for Waitt Lk Valley Sewage Treatment Lagoon 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 above 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Waitt Lk Valley Sewage Treatment Lagoon.