Page 76 - Yucaipa Sustainable Groundwater Management Agency - Yucaipa SGMA

Cover Letter

June 20, 2018

Aaron Jones
Assistant Engineer
San Bernardino Valley Municipal Water District
380 East Vanderbilt Way
San Bernardino, California 92408
Subject: Develop Groundwater Sustainability Plan for the Yucaipa Basin Area

Dear Mr. Jones,
Dudek is pleased to submit a proposal to the San Bernardino Valley Municipal Water District (Valley
District) for the preparation of a Groundwater Sustainability Plan (GSP) for the Yucaipa Basin
(Basin). Dudek is an established firm with extensive groundwater planning experience, including
preparation of the first three preliminary draft GSPs to have been released for public review in
California. Dudek understands the importance and complexity of this planning effort for the Yucaipa
Groundwater Sustainability Agency (GSA), stakeholders, and community within the Basin.

Dudek’s experience with developing GSPs for the Fox Canyon Groundwater Management Agency
(FCGMA) and the Borrego Valley GSA has provided us with a unique perspective and knowledge that
we will apply in preparing the Basin GSP. Fundamentally, the GSP must adopt an adaptive
management strategy that identifies uncertainty, while striving to reduce it over the 20-year plan
implementation period. Our team will work collaboratively with the member agencies of the GSA
and the Basin stakeholders to produce a GSP that provides operational flexibility, meets the
regulatory requirements of the Department of Water Resources (DWR), and optimizes the use of
the Basin for public benefit.

Extensive GSP Experience. Dudek is actively working on multiple GSPs for the Oxnard, Pleasant
Valley, Las Posas, and Borrego Valley groundwater basins. As part of these efforts, we have:

• Facilitated stakeholder outreach efforts, board of directors workshops, and monthly meetings
of the technical advisory group for the FCGMA;
• Provided technical analyses for GSP development based on the regulatory language from the
Sustainable Groundwater Management Act (SGMA) and DWR guidance documents;
• Utilized an existing U.S. Geological Survey (USGS) numerical model to quantify uncertainty in
the estimate of sustainable yield for the Borrego Valley groundwater basin;
• Developed a data management system to support GSP development; and
• Conducted an analysis of water credits and potential modifications to activities to achieve
groundwater sustainability.

Develop Groundwater Sustainability Plan for the Yucaipa Basin Area Page i
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