The City of Morro Bay is building a new water reclamation facility (WRF) with the goal of producing the maximum amount of reclaimed water possible to augment the City’s water supply. To help the City assess how best to use this recycled water, GSI provided technical support to evaluate potential alternatives including: 1) recharging into upstream infiltration basins, 2) delivering recycled water to growers in the Morro or Chorro Valleys in exchange for reduced groundwater pumping, 3) injection and recovery at City wells, and 4) injection into a seawater intrusion barrier. GSI conducted groundwater modeling of the basin, which indicated that the indirect potable reuse via injection of advanced treated recycled water into the aquifer was likely to bring the greatest water supply benefit to the City and its residents.
GSI's work involved:
This work is being followed in 2019 by additional detailed groundwater modeling, pilot injection well installation and testing, and initiation of long-term groundwater monitoring.