System Maintenance: Starting on Saturday, April 26, 2025 from 8 PM to Sunday, April 27, 2025 at 5 AM, we will be performing maintenance on our systems. During this time, Manage My Account, all other web portals, customer alert notifications, and our automated phone system will be unavailable. EZ Pay credit card payment processing and visibility to bills in Manage My Account will be unavailable. We will still be able to process emergency gas and electric requests by calling 210-353-HELP (4357) or 1-800-870-1006.
Design Criteria
Related Links
- Spruce Drains Pond Certification-Alternative Composite Liner Design Documentation
- Hazard Potential Classification for Existing CCR Surface Impoundments - 5 Year Update (2023)
- Spruce Drains Pond Certification-IDF Control System Plan
- Spruce Drains Pond Certification-Liner Construction Completion
- Hazard Potential Classification for Existing CCR Surface Impoundments - 5 Year Update (2021)
- Calaveras Inflow Design Flood Control Plan - 5 Year Update (2021)
- Calaveras Structural Stability and Safety Factor Assessments - 5 Year Update (2021)
- Liner Design Criteria for Existing CCR Surface Impoundments
- Hazard Potential Classification for Existing CCR Surface Impoundments
- Calaveras Compilation of Construction History
- Calaveras Inflow Design Flood Control Plan
- Calaveras Structural Stability and Safety Factor Assessments
- Coal Combustion Residue Impoundment Round 12 - Dam Assessment Report - Spruce Power Plant
- Coal Combustion Residue Impoundment Round 12 - Dam Assessment Report - Deely Power Plant
