Grants & Projects

The Rio Hondo Ecosystem Restoration Project is divided into two distinct phases: (1) the Peck Road Park Lake restoration area and improvements, and (2) the cluster of parcels immediately to the north of Peck Road Park Lake encompassed by Live Oak Avenue, Peck Road, and Lynd Avenue.

The project seeks to improve water quality discharged to the Sawpit Wash and to the Rio Hondo Watershed. In addition, the project also proposes to address water supply benefit by restoring the basins in Peck Road Water Conservation Park and rehabilitate areas of the park. The project consists of 2 stormwater diversions from the LACFCD Sawpit Wash Channel. The water captured will be filtered by a combination of pretreatment systems and flow through a combination wetland and groundwater recharge basin system ultimately discharging into the two large storage basins in Peck Road Water Conservation Park and subsequently, the Rio Hondo.

The design phase is funded by the Safe Clean Water Program.

Project Benefits:

• Water Quality Improvement in the Sawpit Wash and Peck Road Park Lake by removing trash, metals, and nutrients in stormwater

• Nature-Based treatment wetlands and recharge basins with sustainable native landscaping and lake storage

• Park recreational enhancements with a wetland/habitat area and a lake restoration

• Public Access to Waterways with new public access to natural treatment wetlands and pedestrian pathways

Fact Sheet

This stormwater capture project is located at Encanto Park in the City of Duarte directly west of the San Gabriel River. Active use parks provide unique opportunities for multi-benefit regional projects because of the large available public space where a subsurface infiltration gallery can be constructed beneath an existing parking lot and/or recreational field and then restored back to the same, or better condition.

Encanto Park has two large storm drainpipes that converge on the west side of the property before discharging to the San Gabriel River. This project proposes a storm drain diversion to intercept stormwater and convey it to a subsurface infiltration gallery beneath the parking lot that will reduce pollutant loading to the San Gabriel River. This project complements the green stormwater infrastructure already installed at Encanto Park. There is also a potential for onsite treatment and reuse of captured stormwater to offset the irrigation demand of the park if onsite monitoring reveals a sufficient supply of dry weather runoff.

The design phase is funded by the Safe Clean Water Program.

Project Objectives:

• Improve the water quality of the San Gabriel River

• Divert stormwater runoff to local groundwater aquifers via infiltration Update/improve existing park surfaces and amenities

• Educate the public on the local water supply and demands

The primary mechanisms by which the Project will achieve these objectives are through runoff/pollutant capture, treatment, infiltration, filtration, and release to the San Gabriel River.

Fact Sheet

Notice of Intent to Adopt a Mitigated Negative Declaration

Mitigated Negative Declaration (MND)