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Featured Recycled Water Projects

Todd Groundwater has significant experience in both developing and evaluating impacts of recycled water projects.

  • Indirect Potable Reuse Groundwater Studies, Santa Clara County, California — The Santa Clara Valley Water District retained Todd Groundwater to assesss the feasibility of indirect potable reuse projects Read more …
  • Monterey Regional Water Pollution Control Agency — Todd Groundwater is helping the Agency implement a recycled water vadose zone injection well. Read more …
  • Los Angeles County Sanitation District — The attenuation of n-nitrosodimethylamine (NDMA) associated with recycled water was characterized through a program of field investigations and modeling. Read more …
  • WateReuse Foundation — Observation data were used to assess the fate and transport of NDMA from recycled water projects. Read more …
  • West Basin Municipal Water District — Intrinsic tracers were used to assess travel times at the West Coast Basin Seawater Intrusion Barrier. Read more …
  • Central Basin and West Coast Basin, Los Angeles County — These densely populated basins have some of the most significant recycled water recharge projects in the country. Read more …

Recycled Water

Growing uncertainty in traditional sources of water supply and better understanding of treatment technology, both at the treatment plant and underground, have led to increasing public acceptance of recycled water use.

Recycled water is municipal wastewater that has been purified through multiple levels of treatment. Recycled water is required to comply with stringent regulations to ensure that it is safe for approved uses such as irrigation and groundwater replenishment.

Drought conditions in California can lead to over-pumping of groundwater basins and reduced availability of surface water supplies. Recycled water provides a reliable, local, and high-quality source of water supply. As a result, California is a leader in the reuse of recycled water. The California State Water Resources Control Board’s (SWRCB’s) Recycled Water Policy has the stated goals of:

  • Increasing recycled water use by at least one million acre-feet per year (AFY) by 2020 and by at least two million AFY by 2030
  • Substituting as much recycled water for potable water as possible by 2030.

As part of drought relief measures, California has allocated $200 million in grants to recycled water projects. Todd Groundwater has been highly successful in assisting our clients in winning state grants for water projects. Todd Groundwater has considerable experience with recycled water projects including:

  • Feasibility studies and implementation of recycled water recharge projects including spreading basins and vadose zone and aquifer injection
  • Modeling of managed aquifer recharge impacts in terms of mounding, sustainability, and water quality
  • Preparation of engineering reports for recycled water recharge projects in compliance with the California Division of Drinking Water’s Groundwater Replenishment with Recycled Water Regulations
  • Preparation of Salt and Nutrient Management Plans assessing water quality impacts of recycled water projects in accordance with the SWRCB’s Recycled Water Policy
  • Tracer studies to assess recycled water travel in the subsurface

Contact Todd Groundwater

We understand the issues surrounding recycled water use for both indirect potable and non-potable uses. Let us assist you in developing your recycled water projects. For more information, contact Todd Groundwater