AWWA WQTC65753

This powerpoint presentation begins by providing a brief overview of contaminant accumulation within a distribution system. Project objectives include: determining the composition of solids in fire hydrant flush samples collected from water distribution systems that reported measurable levels of radium in their finished waters. Topics covered include: sample collection; solids analysis methods; elemental analysis; solid metal analysis; Radionuclides; Radium Isotopes; Thorium Isotopes; Uranium Isotopes; Water Quality Relationships Alpha/Beta Radiation; and, Water Quality Relationships Radium/Thorium. Includes figure.