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Download Excel NPDES Self Monitoring Program
Donner Summit PUD, WWTP
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Organization
Donner Summit Public Utility Departmentshow partners CVRWQCB
Program website
view
Plan contactThomas Skjelstad
(530) 426-3456
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| Start date | 04/24/2009 |
| End date | None |
| Objectives | The Donner Summit Public Utility District (Discharger) operates a tertiary municipal wastewater treatment plant (WWTP) referred to as the Donner Summit PUD WWTP. The WWTP consists of a 142,000-gallon equalization tank, bar screens, two parallel package activated sludge units, coagulation and three parallel single media filters, a chlorine contact chamber, and an emergency 1.56 million-gallon emergency storage/operation tank. In addition, the facility contains two aerobic sludge digesters (part of the package sludge units), a 600,000-gallon sludge storage tank and sludge drying beds. Dewatered sludge is disposed off-site at a permitted disposal facility. The existing wastewater treatment plant has a design flow of 0.52 million gallons per day (mgd). The average dry weather flow (ADWF) is 0.27 mgd and the average wet weather flow (AWWF) is 0.34 mgd. The daily peak wet weather flow (PWWF) is 1.70 mgd. During the months of October through June (and occasionally portions of July during winters with above-average snowfall) treated municipal wastewater is discharged to the South Yuba River. From July through September and when conditions permit further spraying operations, the Discharge spray irrigates between 0.1 and 0.49 million gallons per day (mgd) of treated wastewater at the Soda Springs Ski Area. Runoff collection and recycling facilities are installed and operated at the bottom of the ski hills that receive the spray irrigation. The Discharger proposes to extend reclamation of wastewater through the winter by using tertiary treated effluent for snow making at the Soda Springs Ski Area. Snow runoff goes into the South Yuba River via ditches. Any tertiary effluent not used in snowmaking will be discharged to the South Yuba River. Administrative Civil Liability Order No. R5-2007-0528. |
| Annual budget | None |
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Basins & sub-basins monitored
- Sacramento River (Sacramento River)
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map
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Sites Monitored
| Name |
Code |
Latitude |
Longitude |
Map |
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South Yuba River, 50 ft US from point of discharge
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RSW-001 |
39.333703 |
-120.401722 |
locate |
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South Yuba River, 500 ft DS from point of discharge
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RSW-002 |
39.333428 |
-120.404749 |
locate |
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Parameters Monitored
| Group | Parameters | Frequency |
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| General Water Quality |
Dissolved Oxygen (DO), Hardness, pH, Specific Conductance [EC @ 25 deg C], Temperature, Turbidity |
Biweekly |
| Hydrology |
Flow |
Biweekly |
| Nutrients |
Ammonia as Nitrogen NH3-N, Nitrate as N NO3-N, Nitrite as N NO2-N, Total Kjeldahl Nitrogen (TKN) |
Biweekly |
| Other |
Visual Observation |
Biweekly |
| Pathogens & Bacteria |
Fecal Coliforms |
Quarterly |
| Pesticides |
Organophosphates |
Biweekly |
| Priority Pollutants |
Priority Pollutants |
Annual |
| Radioactivity |
Radionuclides |
Annual |
| Water Toxicity |
Toxicity (chronic) - Ceriodaphnia, Toxicity (chronic) - Fathead minnow, Toxicity (chronic) - other |
Quarterly |
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Data Products Available
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