About the Environmental Lab

The City of Round Rock Environmental Services Laboratory has been providing bacteriological testing services to water utilities and the public since 1996.  The laboratory’s team of professionals consists of degreed and licensed professionals in a variety of scientific disciplines including biochemistry, marine biology and freshwater biology.



The Environmental Services Laboratory is located on the west side of IH-35 between the cities of Round Rock and Georgetown.

Hours of Operation

The Environmental Services Laboratory accepts samples Monday through Thursday from 8 a.m. to 4 p.m.  The laboratory is closed on City holidays and on the day preceding the holiday .

Samples are accepted outside regular business hours of operation at the laboratory’s discretion.  Samples that are approved for analysis outside regular hours of operation will incur 2.0x the regular fee.  Availability of results may vary.

Please call the laboratory at (512) 218-5561 if you need to submit samples outside of the laboratory’s regular hours of operation.

Fee Schedule