ORANGE COUNTY
WATER ASSOCIATION

May 2019 Industry Insight Presentation

  • 15 May 2019
  • 11:30 AM - 1:00 PM (PDT)
  • Dave & Buster's – Irvine Spectrum • 661 Irvine Spectrum, Irvine CA

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May 15, 2019 Industry Insight Presentation


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Groundwater Reliability Plus

Presenter:
David P. Ahles, P.E.
Senior Civil Engineer,
Engineering – Recycled Water Enterprise Group
Eastern Municipal Water District

  TOMORROW!  

  Make Your Reservation Now  

YU

About Our Presentation

The Eastern Municipal Water District recently initiated the development of a potable groundwater augmentation program using recycled water and advanced treated recycled water to replenish local groundwater aquifers in the form of a Groundwater Replenishment Reuse Project (GRRP), called the Purified Water Replenishment Project (PWR).

The proposed PWR Project is part of the District’s Groundwater Reliability Plus Program advanced by the District to improve the quality and yield of the San Jacinto Groundwater Basin.

From the start, Eastern Municipal Water District established goals that anticipate a two-phase implementation program with an ultimate capacity of 15,000 acre-feet per year (AFY) for the completed PWR project.

Recharged flow will consist of 50% RO permeate and 50% tertiary media filtered recycled water. To accomplish these recharge goals, EMWD plans to install an Advanced Water Purification Facility for treating tertiary effluent from the San Jacinto Valley Regional Water Reclamation Facility through membrane filtration and RO treatment processes.

The RO permeate from the AWPF is proposed to be conveyed to the Alessandro Blending Station for blending with tertiary RW. The blended flow will be conveyed to the Mountain Avenue West Recharge Pond for percolation into the San Jacinto Groundwater Basin.

Implementation of the PWR Project is consistent with EMWD’s objectives to fully utilize recycled water within its service area, maximize potable water offset through use of recycled water, create new local potable water supplies, optimize cost efficiency, and manage salt balance in the local groundwater basins.

Plan now to join us May 15 for an informative Industry Insight that promises to explore in great detail Eastern Municipal Water District’s ambitious Groundwater Replenishment project. This promises to be a fascinating look at an ambitious program. Make your reservations today!


OCWA Members with Reservations:  $30.00

Non-Members with Reservations:  $45.00

OCWA Members without Reservations:  $45.00 (at the door)

Non-Members without Reservations:  $45.00 (at the door)

Reservations must be made by end-of-day, Tuesday, May 14,
to qualify for the Reservation Rate.
Cancellations received AFTER this date CANNOT be refunded.



About Our Speaker

David P. Ahles, P.E.
Senior Civil Engineer
Engineering – Recycled Water Enterprise Group
Eastern Municipal Water District

Mr. David Ahles is a Senior Civil Engineer with EMWD’s Engineering Department. He is the manager for the Recycled Water Enterprise Group. His current responsibilities include planning, design, and construction support for EMWD’s Capital Improvement Program. He is also the Project Manager for the District’s Indirect Potable Groundwater Recharge Project. Mr. Ahles started working for EMWD in April 2015. Prior to that he spent 13 years with the Carlsbad Municipal Water District and 10 years with the San Diego County Water Authority.

Mr. Ahles is a Registered Civil Engineer, with a Bachelor of Science in Civil Engineering, and a Master’s of Public Administration.

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