The ability o f the water urn to produce and maintain a water of superior quality above the invert level
and another water of inferior quality below the invert level
Tenders are invited for Providing Invert Level
of open side drain at Eraneeshwaran Nagar, Ernavoor in div -4 , Unit-1, Zone-1
Adaptation of the invert level
of the wells to the level of the bottom of the channel,
Employing a company to do a camera survey of the property's drainage layout and recording the invert levels
would be a useful exercise at preliminary design stage.
WAPDA said that KBD could not, in any way, block drainage or cause water logging or salinity as invert levels
of main drains of Mardan SCARP are higher than the reservoir elevation of 915 feet and the back water level in Kabul River and Kala Pani Khwar.