Proposed Professional Services Agreement
(PSA) with Montrose Environmental
Solutions, Inc for California Environmental
Quality Act Compliance for Santa Rosa
Water’s Water Supply Alternatives Plan
Contract Review Subcommittee Meeting
October 21, 2024
Peter Martin – Deputy Director Water Resources
2 Background - Water Supply Alternatives
Plan
Purpose
Enhance Santa Rosa’s water supply
resiliency and reliability to mitigate
impacts of shortages due to severe
droughts and emergencies.
Approach
Assess the feasibility of new water
supply options and develop a plan
for increasing resiliency.
Background - Water Supply Alternatives Plan Project
• How much new water supply is optimal
to mitigate the risk of shortages?
• Which supply options should be studied?
• What criteria should be used to assess
each supply option?
• Which mix(es) of options will best help
us meet our supply resiliency goal?
• What is the most reasonable and
adaptive path forward?
Study
Portfolios
Plan
4 Water Supply Goals
Mitigating Droughts Mitigating Natural Disasters &
Catastrophic Events Mitigating Peak Day Demand
Meet 30% of City’s water demand
with municipal supplies to mitigate
impacts of Russian River supply
shortages (e.g., due to prolonged
and/or severe drought).
Based on current City demand
projections, the volume of water
required to meet this is 7,500 acre-
feet per year (AFY) by 2045.
Provide 50% of normal
domestic/indoor demand for
potable water with municipal
supplies during Russian River supply
disruption.
Based on current City demand
projections, the volume of water
required to meet this is 9 million
gallons per day (MGD) by 2045.
Meet 30 percent of peak month
average day demand for potable
water with municipal supplies.
Based on current City demand
projections, the volume of water
required to meet this is 9 MGD by
2045.
5 Portfolios of Options
Option Description
Portfolio 1
Most
Economical
Portfolio 2
Fastest
Portfolio 3
Most Water
Portfolio 4
Most
Adaptive
GW-1 Add Extraction Wells (Up to 12)
GW-2 Convert Emergency Wells to
Production Wells
GW-3 Aquifer Storage & Recovery Wells Consider
PR-2 Satellite Direct Potable Reuse Consider
PR-4 Regional Direct Potable Reuse at
Laguna Treatment Plant Consider
SW-1 Stormwater Storage in Aquifer Consider Consider
E-1 Efficiency Programs
Desalination Consider
6 Next Steps were identified for Portfolio 4
1. Identify funding
2. Plan for Phase 1 of E-1
3. Begin Hydrogeologic studies for
GW-2 & determine CEQA pathway
4. Prepare siting study for GW-1+
5. Track DPR regulations and initiate
planning studies for PR-2+
6. Conduct modeling and siting study
for SW-1
7 RFP Process and Consultant Selection
RFP process
• Request For Proposals was advertised June 10, 2024
• 2 qualified proposals were received
Staff from multiple divisions reviewed the proposals
• Montrose Environmental, Inc. was the highest scoring proposal • Responsive to city needs, proposal team has quality water resources experience and project references
• Not to exceed amount of $448,788
Recommendation
It is recommended by Santa Rosa Water staff that the
Contract Review Subcommittee recommend that the
Board of Public Utilities approve a Professional Service Agreement (PSA) with EKI Montrose Environmental,
Inc. in an amount not to exceed $448,788.