Past Projects / Workgroups

Big Bear Lake TMDL Task Force

Big Bear Lake TMDL Task ForceThe Big Bear Lake nutrient Total Maximum Daily Load (TMDL) Task Force addresses water quality in Big Bear Lake and its surrounding watershed. This Task Force effort was initiated by SAWPA in September 2007 in response to the Santa Ana Regional Water Quality Control Board formally adopting nutrient TMDLs for Big Bear Lake through Resolution No.R8-2006-0023. The TMDL task force works together with stakeholders and the Regional Board to implement a number of actions required in the Basin Plan Amendment.
Read more…

Riverside Basin Groundwater Modeling

Riverside Basin Groundwater ModelingThe Riverside Groundwater Basin is a large alluvial fill basin that is bounded by major faults and topographic barriers. Recharge to the basin occurs by the underflow from basins to the north, contributions from the Santa Ana River, and from percolation of surface water runoff from the surrounding uplands, in particular the Box Spring Mountains to the east. The City of Riverside currently produces about 18,000 acre-feet per year (ac-ft/yr) of water from the southern portion of the Riverside Basin and is planning to increase production up to a total of 45,000 ac-ft/yr in the future. To address the issues associated with increasing groundwater production in the southern portion of the Riverside Basin, SAWPA is assisting the City of Riverside in developing a groundwater flow modeling study.
Read more…

Southern California Water Recycling Initiative

Southern California Water Recycling InitiativeThis effort is associated with the Southern California Comprehensive Water Reclamation and Reuse Study. This cooperative effort is a partnership of the following agencies: the U.S. Bureau of Reclamation, the California Department of Water Resources, Central Basin and West Basin Municipal Water Districts, City of Los Angeles, City of San Diego, Metropolitan Water District of Southern California, San Diego County Water Authority, SAWPA, and South Orange County Reclamation Authority.
Read more…

TIN/TDS Task Force

TIN/TDS Task ForceOn December 19, 1995, a Task Force, composed of approximately 20 water, wastewater, and groundwater agencies in the Santa Ana Watershed, was formed to evaluate the impact of total inorganic nitrogen (TIN) and total dissolved solids (TDS) on water resources in the Santa Ana River Watershed. At that time, the Task Force established agreements between SAWPA and two consultants, Risk Sciences and Wildermuth Environmental Inc., to perform the consulting services for the Study . A separate agreement was formed between SAWPA and the State Water Resources Control Board (SWRCB) to obtain the Santa Ana Region RWQCB staff support in an advisory role.
Read more…

Quail Valley Cooperative Efforts

Quail Valley Cooperative EffortsThe City of Menifee formed the Quail Valley Task Force to address the problems associated with the failing septic tanks in Quail Valley. Read more…

Perchlorate Report(Commission Memo PDF, Full Report PDF, PowerPoint Presentation PDF) Note: The Presentation PDF file size is large (approximately 19 MB).