RG-211: Chapter 8 Filter Assessments and Reports https://www.tceq.texas.gov/downloads/drinking-water/operating-reports/rg-211-chapter-8.pdf/view https://www.tceq.texas.gov/@@site-logo/TCEQ-logo-header.png RG-211: Chapter 8 Filter Assessments and Reports rg-211-chapter8.pdf — 450.8 KB