Thumbnail of the Cover of GI-251, Preserving and Improving Water Quality
a short guide to defining and measuring surface water quality in Texas and TCEQ programs for preserving and improving water quality.
https://www.tceq.texas.gov/downloads/water-quality/tmdl/images/gi-351-cover.png/view
https://www.tceq.texas.gov/@@site-logo/TCEQ-logo-header.png
Thumbnail of the Cover of GI-251, Preserving and Improving Water Quality
a short guide to defining and measuring surface water quality in Texas and TCEQ programs for preserving and improving water quality.