Prosser Warehouse Treatment Lagoon dam
Prosser Warehouse Treatment Lagoon
Prosser Warehouse Treatment Lagoon, located in Prosser, Washington, is a privately owned water treatment facility regulated by the Washington Department of Ecology. Completed in 2012, this Earth-type dam stands at a hydraulic height of 12 feet and has a storage capacity of 17 acre-feet, with a normal storage level of 13.8 acre-feet. Despite its significant hazard potential, the dam's condition assessment in 2018 deemed it satisfactory, ensuring the safety and efficiency of its operations.
The lagoon serves a primary purpose of water resource management, providing crucial treatment and storage capacity for the surrounding area. It undergoes regular inspections, with a frequency of every 5 years, to maintain its structural integrity and prevent any potential risks. The facility's emergency action plan was last revised in 2019, demonstrating a commitment to preparedness and ensuring that the necessary measures are in place to address any unforeseen situations effectively.
With its strategic location in Benton County and proximity to Congressional District 04, the Prosser Warehouse Treatment Lagoon plays a vital role in environmental protection and sustainable water management practices. As a key asset in the region, it exemplifies the importance of regulatory oversight and proactive maintenance to safeguard water resources and address the challenges posed by climate change.
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 Prosser Warehouse Treatment Lagoon -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Yakima River At Kiona | 1,210 cfs | → |
| Yakima River At Mabton | 4,700 cfs | → |
| Granger Drain At Granger | 44 cfs | → |
| Columbia River Below Priest Rapids Dam | 149,000 cfs | → |
| Umatilla River Near Umatilla | 214 cfs | → |
| Yakima River Above Ahtanum Creek At Union Gap | 2,580 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Prosser Warehouse Treatment Lagoon.
Boat launches
- Bryon Road, Prosser
- Sunnyside Mabton Road 6448-7798, Mabton
- North State Route 225 Benton County
- North Harrington Road 113600, Richland
- Vantage Highway Benton County
- Richland
Track Prosser Warehouse 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 Prosser Warehouse Treatment Lagoon
Where does the data for Prosser Warehouse 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 Significant 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 Prosser Warehouse Treatment Lagoon.