Diemer Ozone Contact Basin dam
Diemer Ozone Contact Basin
The Diemer Ozone Contact Basin, located in Orange County, California, is a vital part of the state's water supply infrastructure. Completed in 2011, this offstream facility serves as a key component for water storage and treatment. With a height of 32 feet and a storage capacity of 23 acre-feet, the basin plays a crucial role in ensuring the region's water security.
Managed by a public utility, the Diemer Ozone Contact Basin is regulated and inspected by the California Department of Water Resources (DWR) and Safety of Dams division. Its satisfactory condition assessment and high hazard potential highlight the importance of regular maintenance and monitoring to prevent any potential risks. With a focus on water supply, the basin exemplifies the state's commitment to sustainable water management practices in the face of changing climate conditions.
Situated within the Los Angeles District, the Diemer Ozone Contact Basin stands as a testament to California's dedication to ensuring a reliable and resilient water supply for its residents. As water resource and climate enthusiasts, understanding the significance of infrastructure like this basin is essential in safeguarding our water resources 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 Diemer Ozone Contact Basin -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Carbon C Bl Carbon Cyn Dam Ca | · | → |
| Fullerton C Bl Fullerton Dam Nr Brea Ca | 1 cfs | → |
| Brea C Bl Brea Dam Nr Fullerton Ca | 0 cfs | → |
| Chino C A Schaefer Avenue Nr Chino Ca | 0 cfs | → |
| San Antonio C A Riverside Dr Nr Chino Ca | 2 cfs | → |
| Santa Ana R Bl Prado Dam Ca | 88 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Diemer Ozone Contact Basin.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Diemer Ozone Contact Basin
Where does the data for Diemer Ozone Contact Basin 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 High 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.