Hart & Hickman conducted a lead-based paint survey of large wastewater clarifiers located at a wastewater treatment plant. The clarifiers dated from the 1940s and were slated for renovation and upgrades. The clarifiers were coated with multiple paint layers. The paint layers were separated and laboratory analyzed. Based on the results, three paint layers contain lead-based paint (>0.5%), and the lead based paint was managed properly during the upgrades.