Page 41 - Yucaipa Sustainable Groundwater Management Agency - Yucaipa SGMA

Michael Cruikshank, PG, CHG, MS

Professional Experience

Mr. Cruikshank is a certified hydrogeologist with more than a decade of professional
Education
MS, Civil and Environmental experience. He has technical expertise in hydrogeologic basin analysis, water resource
Engineering, California State planning, and evaluating water quality. Mr. Cruikshank has managed projects in large
University, Fullerton, CA stakeholder environments and assisted in the development of groundwater and surface water
BS, Geology, California State models that are used to make important water resource management decisions. His technical
University, Fullerton, CA experience includes hydrologic data analysis, piezometric data collection and interpretation,
production and monitoring well installation, well design, aquifer testing and analysis,
Professional Registrations managing field data collection programs, geographical information systems (GIS)
Professional Geologist, applications, data management, data visualizations, and report graphics.
California, No. 8854
Certified Hydrogeologist, No. Representative Projects
994 Groundwater Sustainability Plan, Fox Canyon Groundwater Management Agency,
Engineer-in-Training No. 142007
Ventura County, CA. Senior Hydrogeologist. Developed groundwater balances used in
the Groundwater Sustainability Plans (GSP’s) for the four groundwater basins within the
Agency’s jurisdiction: (1) Las Posas; (2) Arroyo Santa Rosa Valley; (3) Pleasant Valley; and
(4) Oxnard. GSP regulations require that each Plan include a water budget for the basin. The
budget accounts for and assesses the total annual volume of groundwater and surface water
entering and leaving the basin, including historical, current, and projected water budget
conditions, and the change in the volume of water stored. DBS&A’s Distributed Parameters
Watershed Model (DPWM) is being applied to evaluate key groundwater balance
components including groundwater recharge by deep percolation of precipitation and
irrigation and mountain front recharge.
Central Coast Blue, Multiple Agencies, Pismo Beach, CA. Program Manager and
QA/QC. Providing technical oversight for the development of the Santa Maria Groundwater
Basin model and managing the hydrogeologic investigations of the Santa Maria
Groundwater Basin. The project will create an advanced treatment facility to treat effluent
for injection into the groundwater basin for indirect potable reuse and to prevent seawater
intrusion.

Recomputation of Ambient Water Quality for the Period 1996 to 2015, Basin
Monitoring Program Task Force, Santa Ana Watershed Project Authority, Santa Ana
River Watershed, CA. Project Manager and Senior Hydrogeologist. The Water Quality
Control Plan (Basin Plan) for the Santa Ana River Basin requires the implementation of a
watershed-wide total dissolved solids (TDS) and nitrogen groundwater monitoring program
to determine ambient water quality in groundwater, assess compliance with groundwater
quality objectives, and determine if assimilative capacity exists in groundwater management
zones. The Basin Plan requires that the ambient water quality (AWQ) be computed every
three years. Mr. Cruikshank has been involved in four ambient water quality determinations.
In the 1996 to 2015 version, Mr. Cruikshank oversaw the development of point statistics for
nitrate and TDS, the preparation of groundwater quality and groundwater elevation contour
maps in the management zones with requisite data, and computed the volume-weighted
ambient TDS and nitrate-nitrogen concentrations using the data generated from the contour
maps. He also led the development of the interpretive tools which included a Spatial analysis
of groundwater quality change, a temporal analysis of groundwater change comparing basin-
scale trends to trends observed in key well locations, and a forward looking well attrition
analysis.

Yucaipa Sustainable Groundwater Management Agency - August 9, 2018 - Page 40 of 208