• "Locals get a peek at groundwater replenishment test plant," November 5, 2013, Monterey County Herald video and article
  • "Recharging Wells With Purified Wastewater," Jan 3, 2014, KUSP Central Coast Public Radio podcast and article
  • Visit the future of water at our water purification demonstration facility.info
Monterey Peninsula Groundwater Replenishmenet Project

A Groundwater Replenishment Project to Help Address Critical Water Needs for the Region

In support of a sustainable, diverse water supply for the Monterey Peninsula, the Monterey Regional Water Pollution Control Agency (MRWPCA) has formed a partnership with American Water Company and the Monterey Peninsula Water Management District in proposing a Groundwater Replenishment Project (GWR Project). A groundwater replenishment project would recharge the Seaside groundwater basin with high quality purified water. The project being considered is sustainable, drought-resistant and would improve and protect drinking water supplies. The GWR Project is in advanced planning stages, and has been expedited to be online by the Fall of 2016. Funding will be provided by grants, project partners and water users on the Monterey Peninsula.

The GWR Project would:

  • Create a reliable, publicly owned, safe water supply for Monterey Peninsula.
  • Allow other, more energy-intensive, options such as seawater desalination to be smart-sized, thus enhancing the overall environmental benefits.
  • Diversify the community's water supply portfolio for a more secure water supply.
  • Be online sooner and use far less energy than most other water supply alternatives.

Proposed Project Overview

The proposed GWR Project will recharge the Seaside groundwater basin with high quality purified water. The project is sustainable, drought-resistant and will improve and protect drinking water supplies. The project is in advanced planning stages and has been expedited to be online by the fall of 2016 and cost no more than $3,000/Acre-Foot.

For additional project information, browse the Overview Section.

Project Update (December 2014)

Supplement to May 2013 Notice of Preparation of an EIR (PDF)

Project Updates (April 2014)

MPWMD & MRWPCA partnership for Pure Water SolutionsNew Partnership for Pure Water Solutions

In January 2014 the Monterey Peninsula Water Management District  and the Monterey Regional Water Pollution Control Agency joined a partnership in support of the Monterey Peninsula Groundwater Replenishment Project.  Soon afterwards, the Project was renamed “Pure Water Monterey: a Groundwater Replenishment Project.” 

For project reports please visit the following:

  • MRWPCA For all Board and Committee Agendas and Minutes
  • MPWMD For all Board and Committee Agendas and Minutes

Previous Project Updates can be found on the Archives page.

GRP timeline

Groundwater Replenishment Benefits