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Crawford Hydrology Laboratory provides professional consulting and field and laboratory services regarding groundwater tracing in karst and non-karst areas.

We specialize in groundwater investigations with the use of fluorescent dyes and utilize techniques we have developed and enhanced over the past 38 years. We provide quality supplies and analyses for groundwater traces and conduct full field investigations. Crawford Hydrology Laboratory has extensive experience conducting dye trace investigations for commercial clients as well as government agencies.

We look forward to working with you!

Imagine a Day Without Water 2018

Join CHL in participating in Imagine a Day Without Water. This event focuses on raising education and awareness of the value of water.

Student Research Grant

CHL is now accepting proposals for their 2018 student research grants.


CHL Assistant Director, Lee Anne Bledsoe, recently traveled to Bosnia Herzegovina where she presented ‘Dye Tracing Case Studies from the US’ at the International Seminar and Field Course – Characterization and Engineering of Karst Aquifers.