JASON E. UHLEY 1995 MARKET STREET
General Manager-Chief Engineer RIVERSIDE, CA 92501
951.955.1200
951.788.9965 FAX
www.rcflood.org
RIVERSIDE COUNTY FLOOD CONTROL
AND WATER CONSERVATION DISTRICT
254837
February 8, 2024
City of Riverside
Planning Department
3900 Main Street
Riverside, CA 92522
Attention: Brian Norton Re: PR 2021-00119, APNs 241-210-011 and 241-210-013
The Riverside County Flood Control and Water Conservation District (District) does not normally recommend conditions for land divisions or other land use cases in incorporated cities. The District also does not plan check City land use cases or provide State Division of Real Estate letters or other flood hazard reports for such cases.
District comments/recommendations for such cases are normally limited to items of specific interest to the District including District Master Drainage Plan facilities, other regional flood control and drainage fa cilities which could be considered a logical component or extension of a master plan system, and District Area Drainage Plan fees (development mitigation fees). In addition, information of a general nature is provided.
The District's review is based on t he above-referenced project transmittal, received January 26, 2024. The District has not reviewed the proposed project in detail, and the following comments do not in any way constitute or imply District approval or endorsement of the proposed project with respect to flood hazard, public health and safety, or any other such issue:
☒ This project would not be impacted by District Master Drainage Plan facilities, nor are other facilities of regional interest proposed. The property (APNs 241-210-011 and 241-210-013) for this single-family residence extends in the watercourse and low area that conveys flows from the District 's Alessandro Dam to the District's Mary Street Dam. This watercourse and conveyance area should be kept free of grading, buildings, and obstructions. The proposed grading as shown on the City of Riverside P19-0318 Conceptual Grading/Erosion Control Plan dated December 2023 will not impact this flow area between the District's two dam facilities and therefore the District has no objection to this proposal.
☐ This project involves District proposed Master Drainage Plan facilities, namely, . The District will accept ownership of such facilities on written request by the City. The Project Applicant shall enter into a cooperative agreement establishing the terms and conditions of inspection, operation, and maintenance with the District and any other maintenance partners. Facilities must be constructed to District standards, and District plan check and inspection will be required for District acceptance.
Plan check, inspection, and administrative fees will be required. All regulatory permits (and all documents pertaining thereto, e.g., Habitat Mitigation and Monitoring Plans, Conservation Plans/Easements) that are to be secured by the Applicant for both facility construction and maintenance shall be submitted to the District for review. The regulatory permits ' terms and conditions shall be approved by the District prior to improvement plan approval, map recordation, or finalization of the regulatory permits. There shall be no unreasonable constraint upon the District's ability to operate and maintain the flood control facility(ies) to protect public health and safety.
☐ This project proposes channels, storm drains larger than 36 inches in diameter, or other facilities that could be considered regional in nature and/or a logical extension a District's facility, the District would consider accepting ownership of such facilities on written request by the City. The Project Applicant shall enter into a cooperative agreement establishing the terms and conditions of inspection, operation, City of Riverside - 2 - February 8, 2024
Re: PR 2021-00119, APNs 241-210-011 and
241-210-013 254837
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and maintenance with the District and any other maintenance partners. Facilities must be constructed to District standards, and District plan check and inspection will be require d for District acceptance.
Plan check, inspection, and administrative fees will be required. The regulatory permits ' terms and conditions shall be approved by the District prior to improvement plan approval, map recordation, or finalization of the regula tory permits. There shall be no unreasonable constraint upon the District 's ability to operate and maintain the flood control facility(ies) to protect public health and safety.
☐ This project is located within the limits of the District's ______ Area Drainage Plan for which drainage fees have been adopted. If the project is proposing to create additional impervious surface area, applicable fees should be paid (in accordance with the Rules and Regulations for Administration of Area Drainage Plans) to the Flood Control District or City prior to issuance of grading or building permits.
Fees to be paid should be at the rate in effect at the time of issuance of the actual permit.
☐ An encroachment permit shall be obtained for any construction related activities occurring within District right of way or facilities, namely, ____________________. If a proposed storm drain connection exceeds the hydraulic performance of the existing drainage facilities, mitigation will be required. For further information, contact the District's Encroachment Permit Section at 951.955.1266.
☐ The District's previous comments are still valid.
GENERAL INFORMATION
This project may require a National Pollutant Discharge Elimination System (NPDES) permit from the State Water Resources Control Board. Clearance for grading, recordation, or other final approval should not be given until the City has determined that the project has been granted a permit or is shown to be exempt.
If this project involves a Federal Eme rgency Management Agency (FEMA) mapped floodplain, then the City should require the applicant to provide all studies, calculations, plans , and other information required to meet FEMA requirements, and should further require that the applicant obtain a Conditional Letter of Map Revision (CLOMR) prior to grading, recordation, or other final approval of the project and a Letter of Map Revision (LOMR) prior to occupancy.
The project proponent shall bear the responsibility for complying with all applicable mitigation measures defined in the California Environmental Quality Act (CEQA) document (i.e., Negative Declaration, Mitigated Negative Declaration, Environmental Impact Report) and/or Mitigation Monitoring and Reporting Program, if a CEQA document was prepared for the project. The project proponent shall also bear the responsibility for complying with all other federal, state, and local environmental rules and regulations that may apply.
If a natural watercourse or mapped floodplain is impacted by this project, the City should require the applicant to obtain a Section 1602 Agreement from the California Department of Fish and Wildlife and a Clean Water Act Section 404 Permit from the U.S. Army Corps of Engineers, or written correspondence from these agencies indicating the project is exempt from these requirements. A Clean Water Act Section 401 Water Quality Certification may be required from the local California Regional Water Quality Control Board prior to issuance of the Corps 404 permit.
Very truly yours,
AMY MCNEILL
Engineering Project Manager