Public notices

The proposed project would occur within the area (saddle) between Blue Diamond Basin and Bond Basin at the Santiago Basins, in the city of Orange in Orange County, California. The Santiago Basins are bounded by Prospect Avenue to the west, Hewes Avenue to the east, Bond Avenue to the south and Villa Park Road to the north.  The proposed project consists of the reconstruction of a flow equalization box culvert for protection of the saddle apron and the reconstruction of slopes to (a) alleviate safety concerns when maintenance activities are occurring and (b) reduce risk of future slope failure that would harm or destroy riparian vegetation and environmental resources. The proposed project activities include the dewatering of the basin, stabilization of the saddle side slopes, reconstruction of the saddle apron, reconstruction of an equalization box culvert for the protection of the saddle apron, and restoration of any vegetation removed for the proposed project.

Project documents:

- Notice of intent
- Draft initial study/mitigated negative declaration
- Appendix A - streambed alteration agreement notification
- Appendix B - air quality and greenhouse gas emissions technical memorandum
- Appendix C - biological resources assessment
- Appendix D - phase 1 cultural resources report
- Appendix E - AB52 tribal consultation
- Appendix F - noise and vibration technical memorandum

The proposed project involves the construction and operation of a multi-depth monitoring well located on the Orange Coast College (OCC) campus in the City of Costa Mesa, California.  The monitoring well would replace an existing well that is currently maintained by OCWD within the OCC campus. The purpose of the well is to monitor potential seawater intrusion and groundwater flow beneath the Newport Mesa.  The existing monitoring well is located within the planned footprint development of a future student housing construction project and would be removed by OCC as part of a separate student housing project.

Project documents:

- Draft initial study/mitigated negative declaration
- Appendix A - air quality & GHG impact analysis
- Appendix B - cultural resources records search
- Appendix C - paleontological records search
- Appendix D - noise impact analysis
- Appendix E - tribal consultation

The proposed project involves the destruction and permanent decommissioning of seven extraction wells including demolition of the associated structures and pipeline and construction of one new monitoring well within the city of Huntington Beach, Calif. The extraction wells and associated pipelines were constructed in the 1960s by OCWD as components of a system intended to extract and convey saline groundwater within the Talbert Gap in an effort to reduce the potential for seawater intrusion into the Orange County Groundwater Basin. Operation of the extraction wells was stopped in 1981 and all components of the system are inactive. The proposed project would be intended to permanently decommission the inactive components of the extraction well system and install one new monitoring well on city of Huntington Beach right of way.

Project documents:
- Draft initial study/mitigated negative declaration
- Appendix A - air quality and GHG impact analysis
- Appendix B - cultural resources records search
- Appendix C - noise impact analysis

For questions about this project, please contact Shawn Nevill.