Amendment No. 0002 08Oct2020SiteVisit.pdf

This solicitation is for maintenance services at two clearwell water treatment facilities located at the Dalecarlia Water Treatment Plant in Washington D.C. and Northern Virginia. The Washington Aqueduct seeks upgrades and improvements to the 15 million gallon and 30 million gallon clearwells and their connecting conduits. Work includes upgrading drain lines to eliminate cross connections, rehabilitating and replacing large sluice gates, installing new flow meters and induction mixers, improving the clearwell overflow structure, rerouting chemical analyzer drain pipes, and improving soil drainage. Additional requirements include mold remediation and HVAC upgrades in a building near the 15 million gallon clearwell. Outages must be coordinated with lower seasonal demand periods and sequenced so only one clearwell is out of service at a time. The solicitation was issued by the Department of the Army Corps of Engineers Baltimore District for these critical water supply and storage facilities.