RIVERSIDE BAPTIST CHURCH CHURCH; SWARDHUNI PETHE

6 I St Sw, Washington, Dc 20024
Ecs will install four (4) monitoring wells within the footprint of the planned excavation to characterize groundwater conditions, c. The locations of the proposed monitoring wells are depicted on figure 1. Monitoring wells will be installed using a track-mounted drill rig, which uses continuous flight, hollow-stem augers hsa to advance the borehole. For each monitoring well, filter sand will be placed in the annulus around the well screen and added until it is to two feet above the screen. A two-foot thick low permeability seal constructed of hydrated bentonite chips will then be placed from the top of the sand. The bentonite will be hydrated with potable water as it is poured into the annulus around the well, thereby ensuring that all bentonite is properly hydrated. Bentonite powder and portland cement slurry with a to mix ratio consisting of 1 lbs. Of bentonite powder, 94 lbs. Of portland cement hydrated with 82 gallons of water will then be placed using a tremie pipe from the top of