About

Hi, I’m Betsy Semmens, Principal owner of BAS Groundwater Consulting. I specialize in numerical groundwater flow and transport modeling, GIS and relational database development, and 3D geologic modeling for regulatory compliance, assured water supply, ASR, Arizona Aquifer Protection Permit applications and compliance, and impact analyses.

I have over 20 years of experience in consulting for mines, municipalities, water companies, utilities, and developers.

I am available to sub-contract to other firms or directly to clients!

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