HOMAIRA SHARIF

27 F St Nw, Washington, Dc 20566
(dccr) proposes to drill and install micropile foundation elements (s-1 through s-20) to support the ventilation control facility at the cso 021 diversion chamber and drop shaft site, located south of the kennedy center and north of i-66. Micropile foundation installation will be performed utilizing a fully cased methodology. After installing the first section of casing, drilling with an auger or bucket is performed until the excavation inside the casing reaches approximately 1. 5 feet above the lower end of the casing. Sandbags and earth dikes will be used to prevent surface runoff from entering the borehole. Reinforced steel will be placed after the excavation of the micropile has been completed, and the design depth of the pile has been reached. Each individual micropile shaft will be permanently filled with 4,0 psi grout. No excavated soils will be used as backfill. The micropile installation, waste management of drill spoils, and groundwater protective measures are comprehensively

3 Water St Se, Washington, Dc 20003
On behalf of the district of columbia water and sewer authority (dc water), the dc clean rivers (dccr) project requests the approval to abandon a monitoring well (bpc- and mpc-04). These monitoring wells were installed by dccr during the investigation and design phase to provide information regarding subsurface conditions. Construction of the tunnel and near surface structures under division a is now complete. Therefore, the well installed as part of this division is no longer needed and will be abandoned. The monitoring well will be abandoned by either removing the well casing or perforating the well casing in the screened interval and filling the well with a cement bentonite slurry, or by backfilling with medium, hydrated, bentonite pellets in accordance with the well regulations (1831. 5). Monitoring wells will be abandoned following doee regulations. See attached work plan for more details.

4 499 Block Of Rhode Island Avenue Ne Washington Dc
Manhole access 1 yr

301 398 Block Of Florida Avenue Nw Washington Dc
Manhole access 1 yr