Officials required blasting and painting 230 hydrants in phase one, and 1,000 hydrants in phase two and three; other municipal hydrants, would be scheduled after the completion of phase three. Silver Sponge Media TM abrasive was specified for the project based upon key process benefits: ¦ Operator Safety - The suppression of airborne lead particles was critical in the small containment system. ¦ Cutability - The process had to aggressively cut multilayered, 1.6 to 3.2 micron (40 to 80-mil), lead coatings and provide a surface profile. ¦ System Mobility - The system had to be mobile enough to fit down city and residential streets. ¦ Quick Set-up and Clean-up - Efficient site preparation and cleanup was necessary to blast and repaint ten hydrants per day. The phase one contractor used the

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