Infiltration. Each section shall be covered with no less than two feet (0.6 m) of water above the top of the pipe at the highest point. The infiltration will be measured by means of a ▇▇▇▇ located in the downstream manhole. The pressure head of 2 feet (0.6 m) shall be maintained for a period of not less than 24 hours before the ▇▇▇▇ measurements are made.
Appears in 2 contracts
Sources: Amendment to Contract, Amendment to Contract