Specifications include, but are not limited to: Madison Water Utility is requesting cost proposals to provide impulse rehabilitations and chemical treatments at Unit Wells 20 and 24. The Utility has removed the columns and pumps from the wells and has added sodium hypochlorite to the wells to pre-disinfect and treat their formations. Sequence of activities: 1. Start work within 5 working days of receipt of the approved purchase order. 2. Coordinate setup, schedule, and operations with the Utility. 3. Completely mechanically brush, scrub and scour the walls of the casings. 4. Following brushing, bail accumulated fill from the holes. 5. Apply impulse and chemical rehabilitation to the wells. 6. Upon completion of chemical and impulse treatments, bail accumulated fill from the holes. 7. Video survey the wells to document pre-startup conditions. 8. Demobilize and cleanup sites.
