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Download Excel NPDES Self Monitoring Program
Southern CA Edison Company Balsam Meadows Hydroelectric Project Eastwood Powerhouse Facility
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Organization
Central Valley Regional Water Quality Control Boardshow partners Southern CA Edison
Program website
view
Plan contactMatt Scroggins
559-445-6042
[email protected]
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| Start date | 06/24/2005 |
| End date | None |
| Objectives | This Order regulates the discharge of treated and untreated wastewater to Shaver Lake and North Fork Stevenson Creek, both waters of the United States. The Discharger submitted a Report of Waste Discharge, dated 18 March 2004, and applied for a permit renewal to discharge waste under the NPDES. The underground Facility enerates hydroelectric power through a single pump-turbine connected to a motor/generator and it is part of the Balsam Meadows Hydroelectric Project. The Balsam Project includes a 5, 900-foot diversion tunnel connecting the existing Hungtington-Pitman-Shaver Conduit, a 4,320-foot power tunnel, an access tunnel, a construction tunnel used to store equipment and access different levels of the Facility, and a 7, 500-foot tailrace tunnel with a 16-foot horseshoe section leading to Shaver Lake. The Balsam Project also includes the Balsam Meadows Forebay, a 2,100 acre-foot storage reservoir from which water flows to the Facility. During off-peak electrical consumption hours, water from Shaver Lake may be pumped into the forebay for power generation use the following day. |
| Annual budget | None |
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Basins & sub-basins monitored
- San Joaquin River (Southeast)
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map
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Sites Monitored
| Name |
Code |
Latitude |
Longitude |
Map |
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Stevenson Creek, North Fork, 250 ft US from discharge from access tunnel
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R-1 |
37.139564 |
-119.251235 |
locate |
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Stevenson Creek, North Fork, 250 ft DS from discharge from access tunnel
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R-2 |
37.138487 |
-119.25272 |
locate |
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Shaver Lake, 25 to 125 ft from discharge
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R-3 |
37.1289 |
-119.267168 |
locate |
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Shaver Lake, within 25 ft of pt of discharge from the tailrace Tunnel
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R-4 |
37.129722 |
-119.265212 |
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 |
Biannual, Monthly |
| Hydrology |
Flow |
Monthly |
| Priority Pollutants |
Priority Pollutants |
Other |
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Data Products Available
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