Proposed Drainage improvements and Restoration Activities at the Rancho Mission Viejo Riding Park

2 Documents in Project


SCH Number
Lead Agency
San Juan Capistrano, City of (City of San Juan Capistrano)
Document Title
Proposed Drainage improvements and Restoration Activities at the Rancho Mission Viejo Riding Park
Document Type
MND - Mitigated Negative Declaration
Project Applicant
City of San Juan Capistrano
Present Land Use
Open Space Recreation (OSR) / Natural Open Space (NOS)

Document Description
The proposed Project consists of three principal components including: 1) removal of an existing Arizona Crossing (i.e., low-water bridge) across San Juan Creek; 2) streambank restoration along the Riding Park's border with the eastern bank of the creek; and 3) installation of a stormwater capture and treatment system to prevent the incidental discharge of stormwater pollutants. The City is undertaking the proposed Project to restore the natural conditions of San Juan Creek, protect the creek from potential incidental discharge of stormwater pollutants, and convey annual flood events at the Riding Park, while also restoring wetland habitat functions and values and surface water features that are under the jurisdiction of the U.S. Army Corps of Engineers (USAGE), San Diego Regional Water Quality Control Board (RWQCB), and California Department of Fish and Wildlife (CDFW).

Contact Information
Joe Parco
City of San Juan Capistrano
32400 Paseo Adelanto
San Juan Capistrano, CA 92675

Phone : (949) 443-6353


33°31'02"N 117°57'21"W
San Juan Capistrano
Cross Streets
Avenida La Pata and Ortega Highway (SR-71)
Total Acres
Parcel #
State Highways
San Juan Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Recreational (Drainage Improvements and Restoration Activities)
Local Action
Use Permit CWA 401, CDFW 1600
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Land Use
Reviewing Agencies
Cal Fire California Air Resources Board California Department of Conservation California Department of Fish and Wildlife, South Coast Region 5 California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, San Diego Region 9 Department of Toxic Substances Control Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Drinking Water California Department of Transportation, District 12


Environmental Document
Appendix A - CalEEMod Analysis (July 2019)   PDF 485 K Appendix B - Biological Resources Assessment (March 2019)   PDF 6594 K Appendix C - Jurisdictional Delineation (April 2018)   PDF 7402 K Appendix D - Cultural Resources Assessment (May 2019)   PDF 5221 K RMV_Public Draft ISMND   PDF 4458 K Summary_Form_for_Document_Submittal   PDF 756 K
NOC   PDF 1431 K
State Comments
2019099080_Caltrans_12-ORA-2019-01237   PDF 220 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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