Form 20797b: TCEQ Groundwater Operational Evaluation Report Form 20797b: TCEQ Groundwater Operational Evaluation Report https://www.tceq.texas.gov/downloads/drinking-water/chemicals/20797b-gw-oel.pdf/view https://www.tceq.texas.gov/@@site-logo/TCEQ-logo-header.png Form 20797b: TCEQ Groundwater Operational Evaluation Report Form 20797b: TCEQ Groundwater Operational Evaluation Report 20797b-gw-oel.pdf — 1.3 MB