SCH Number 2020090506
Project Info
- Title
- Lake Fordyce Dam Seepage Mitigation - Mitigated Negative Declaration and Notice of Intent
- Description
- Lake Fordyce Dam is on Fordyce Creek, a tributary of the South Fork of the Yuba River, in Nevada County. The dam is about 7 miles northwest of Soda Springs, California, and 15.5 miles northwest of Truckee, California. Water released from Lake Fordyce flows into Fordyce Creek, which then drains to PG&E’s Lake Spaulding. In 2005, the California Department of Water Resources, Division of Dam Safety (DSOD) instituted a seepage threshold of 30 cubic feet per second (cfs) for Lake Fordyce Dam. Seepage at Lake Fordyce Dam exceeded the threshold in November 2011. Accordingly, in 2012 DSOD required PG&E to submit a plan and schedule to mitigate the seepage. The Project is intended to bring Lake Fordyce Dam into compliance with DSOD’s seepage threshold. The Project consists of a number of prescribed improvements designed to reduce seepage. To implement these dam improvements, Lake Fordyce Road would be improved to allow construction equipment access. Additionally, a cofferdam would be constructed in Lake Fordyce to create a dry work area on the upstream face of the dam. The Project is scheduled to occur from April to October each year for three consecutive years and possible a fourth
8 documents in project
| Type | Lead/Public Agency | Received | Title |
|---|---|---|---|
| ADM | State Water Resources Control Board, Division of Water Rights | Lake Fordyce Dam Seepage Mitigation Project | |
| NOD | State Water Resources Control Board, Division of Water Rights | Lake Fordyce Dam Seepage Mitigation Project | |
| NOD | State Water Resources Control Board | Addendum to the Initial Study and Mitigated Negative Declaration for the Lake Fordyce Dam Seepage Mitigation Project | |
| NOD | State Water Resources Control Board | Notice of Determination for Lake Fordyce Dam, No. 97-28 | |
| NOD | State Water Resources Control Board | Lake Fordyce Dam Seepage Mitigation (Lake or Streambed Alteration Agreement No. 1600-2020- 0147-R2) | |
| FIN | State Water Resources Control Board, Division of Water Rights | Lake Fordyce Dam Seepage Mitigation, Notice of Determination | |
| NOD | State Water Resources Control Board, Division of Water Rights | Lake Fordyce Dam Seepage Mitigation, Notice of Determination | |
| MND | State Water Resources Control Board, Division of Water Rights | Lake Fordyce Dam Seepage Mitigation - Mitigated Negative Declaration and Notice of Intent |