County approves Lakeland Village Master Drainage Plan cooperative agreement with EVMWD


The Riverside County Flood Control and Water Conservation District is pursuing the Lakeland Village Master Drainage Plan, and the district board approved a cooperative agreement with the Elsinore Valley Municipal Water District, May 19.

The Riverside County Board of Supervisors members are also the board members of the Riverside County Flood Control and Water Conservation District, and the supervisors’ 5-0 vote authorized the agreement which sets terms and conditions with the water district regarding the relocation of existing EVMWD waterlines.

The Lakeland Village Master Drainage Plan includes what is known as Line H. The first phase will build approximately 1.2 miles of an underground storm drain system in Lakeland Village. The system will capture storm runoff at four locations in the nearby foothills and will redistribute that stormwater to Lake Elsinore, mostly through underground conveyance. When the project is completed approximately 40 acres of floodplain will be eliminated. The Line H sedimentation basin will help improve low-flow water quality before it enters the lake, and the basin will also allow for some groundwater recharge.

On March 10, the county supervisors voted 5-0 on behalf of both agencies to approve a cooperative agreement with each other regarding the 1.2-mile segment. That agreement includes the terms and conditions for the project in which the flood control district will design and construct the facilities while the county’s Transportation Department will take over ownership of the facilities after completion and will be responsible for the operation and maintenance of the improvements.

The flood control district’s design work has identified existing Elsinore Valley Municipal Water District waterlines which will need to be relocated. Under the cooperative agreement, the flood control district will design and construct the relocation of three waterlines, while EVMWD will be responsible for reviewing the waterline relocation plans.

The engineer’s estimate to construct the Stage 1 portion of Line H is $9.4 million although the actual construction costs will be determined by a competitive bidding process. The flood control district will fund the design, construction and construction inspection costs, while EVMWD will reimburse the flood control district for the design and relocation costs of two of the waterlines.

The agreement limits the EVMWD reimbursement amount to $100,000. The flood control district provided the water district with $20,000 for potholing inspection in April 2018. The potholing has been completed, and EVMWD has agreed that the remaining amount from the flood control district will be applied to the water district’s construction inspection costs for the Maiden Lane waterline relocation.

The flood control district also made findings that no updates to the Programmatic Environmental Impact Report approved in March 2015 and an addendum approved in February 2018 were necessary as a result of the cooperative agreement.

Joe Naiman can be reached by email at