Vandenberg Air Force Base (VAFB), through the U. S. Army Corps of Engineers,
issued Dean Ryan a design/build contract to develop a groundwater supply for irrigation
of Vandenberg Golf Course. As the Prime Consultant, Dean Ryan is responsible for
identifying and delivering ground water to the existing golf course irrigation system.
This includes exploration, analysis and decision making, an assessment of the environmental
impacts on the community and of withdrawing water from the groundwater system, design of
the well(s) and appurtenances, pipelines and construction of the system.
Phase I - Exploration and Development of Alternatives:
Task 1 - Research: Dean Ryan staff compiled and studied published geology and water supply literature for the region; obtained available data and reports for groundwater investigations and water wells on the Base (including environmental drilling in the areas of interest); compiled available information on the Base infrastructure pertinent to water and power distribution. This data compilation includes design and as-built plans for the existing water supply; researched of environmental issues that my require consideration for development of a new groundwater supply. This effort also includes permitting, access limitations, wetlands, construction impacts, and groundwater extraction restrictions; geologic and logistical reconnaissance of selected areas on the Base.
Task II - Field Exploration of Immediate Golf Course Vicinity: Due to the potential extraordinary costs associated with supplying groundwater from a single water source 4 to 5 miles away, it was prudent to thoroughly evaluate any potential closer sources of water.
In order to determine the availability of gourndwater in the immediate vicinity of the golf course, the interpretation of hydrogeologic conditions previously discussed were confirmed by Dean Ryan staff based on limited field exploration.
Task III - Data Evaluation and Report: A report was provided describing geologic and hydrogeologic conditions in the golf course vicinity. Available quantities of groundwater were calculated using test pump data, geologic interpretations and data taken from the references. The impact of varied pumping scenarios were modeled. Pumping and reservoir storage options will be considered to evaluate alternatives. Water quality factors were also evaluated. Dean cost factors were included in the evaluation of alternatives.
Task 1V: Briefing: After the report is completed and delivered, a briefing will be conducted to present and discuss the analysis, conclusions and recommendations.
Phase II - Design
Based upon the results of Phase I currently underway, a Phase II Scope of Work (SOW) and cost for a design program and further exploration will be submitted. Basic elements of Phase II will include the following: Phase III - Construction
This phase of work includes installation of a well(s) and construction of the pumping control, delivery and reservoir system.