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Brief Project Description: The proposed project calls for the development of a wetlands habitat in the Augustus B. Hawkins Nature Park (Figure 2 below). This wetlands habitat would be comprised of two elements: a freshwater marsh wetlands and surrounding riparian vegetation. The wetlands would provide multiple benefits: treatment of non-point source pollution, wildlife habitat, recreation, and education.

The wetlands would reduce pollutants through natural treatment of the on-site nonpoint source runoff from the Park during both dry weather and wet weather. During wet weather, the wetlands would be designed to increase in size and capacity allowing the capture and treatment of the storm flows before they reach the Los Angeles River.

This wet weather feature would provide a flood control benefit by discharging the Park’s stormwater runoff after the peak flow from the storm event has past. The wetlands would be constructed to make habitat for frogs and fish as well as resident and migratory birds. The proposed wetlands will provide an excellent outdoor classroom on aquatic and riparian ecosystems which will be a nice addition to the Parks existing environmental education program. The proposed project is planned to be completed and operational before the 2003 late fall rainy season.

Figure 1

The wetlands would be constructed to make habitat for aquatic species such as frogs and fish as well as resident and migratory birds. Landscaping around the wetlands will be done with native riparian plants and trees. The proposed wetlands will provide an excellent outdoor classroom on aquatic and riparian ecosystems.

In addition to water quality improvements and aquatic habitat development, the constructed wetlands will have public education component built into project. Visitors to the wetlands habitat will be able to view information about how the wetlands work to reduce nonpoint source pollutants and how clean neighborhoods can further help by protecting the environment, locally and globally.

Goals and Objectives: The proposed Augustus B. Hawkins Wetlands Habitat will provide tangible benefits that will accomplish the goals presented in the Regional Board’s Watershed Management Initiative Chapter. These benefits include protection and enhancement of fish and wildlife habitat, removal of exotic vegetation, enhancement of recreational areas, attaining a balance between water reclamation and minimum flows to support habitat, management of storm water quality, and reductions of contaminated sediments reaching the LA River estuary.
The project is consistent with the Nonpoint Source Pollution Control Program in the ARD (1149, 114-110, & R4-11) by demonstrating the effectiveness of wetlands in removing nitrogen compounds, nutrient, bacteria, and other pollutants from urban runoff. The project would also be consistent with the high priority items in the Watershed Management Initiatives by supporting the updated ammonia objectives (WQ0-1) and by demonstrating bacteria removal technologies (WQO-2) that can be implemented throughout the Los Angeles River watershed and other watersheds in the region.

Figure 2


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