Edwards Aquifer Research & Data Center (EARDC)

Who we are

EARDC was established in 1979 with special funding for Texas State University to provide a public service in the study, understanding and use of the very fragile natural resource, the Edwards Aquifer.

work collage pic

2024 TGIF Registration

The Texas Groundwater Invertebrate Forum (TGIF) is scheduled November 8, 2024, at the City of San Marcos Dunbar Recreation Center. To view the meeting schedule and access an interactive map of the location, click here.  In addition, a virtual eDNA lecture will be held on November 7, 2024. Click the link below to register.

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"When the well's dry, we know the worth of water"

~ Benjamin Franklin

real science, real fun!

The Aquatic Summer Adventure Camp (ASAC) is the place to be this summer. Send your kids or kids tell your parents. Don't miss out on the cool summer fun.

kids river collecting aquatic bugs

EARDC Laboratory (NELAP)

Hours of operation : Monday-Friday 8 - 5 Sample drop off : Monday - Thursday 8 - 5 or contact us for special arrangements
lab analysis
SAN MARCOS WEATHER