Installation of 18 geotechnicial borings at the south corrodon project stage-1-b-site in support of design for the proposed suitland parkway interstate 295 interchange improvement. Borings diameter eight inches by feet deep. The work will take place in different section i-295/anacostia fwy, howard road se, suitland parkway se and mlk jr. Ave se, as per site plans, work plans report, de well construction form and schematic form; this project is for ddot. (dcka-2011-q-0241)

Installation of 18 geotechnicial borings at the south corrodon project stage-1-b-site in support of design for the proposed suitland parkway interstate 295 interchange improvement. Borings diameter eight inches by feet deep. The work will take place in different section i-295 anacostia fwy, howard road se, suitland parkway se and mlk jr. Ave se, as per site plans, work plans report, de well construction form and schematic form; this project is for ddot. (dcka-2011-q-0241)

Excavation; boring test pit (single)

Installation of 18 geotechnicial borings at the south corrodon project stage-1-b-site in support of design for the proposed suitland parkway interstate 295 interchange improvement. Borings diameter eight inches by feet deep. The work will take place in different section i-295 anacostia fwy, howard road se, suitland parkway se and mlk jr. Ave se, as per site plans, work plans report, de well construction form and schematic form; this project is for ddot. (dcka-2011-q-0241)

On behalf of the district of columbia water and sewer authority (dc water), the dc clean rivers (dccr) project requests the approval to abandon 1 monitoring well (sac-101). The well is located adjacent to suitland parkway and howard rd se. The monitoring well was 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 are now complete. Therefore, the wells installed as part of this division are 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. Monitoring wells will be abandoned following doee regulations. See attached work plan for more details.

Scb will perform 3 borings will extend to the depth of feet and 4 borings to feet unless refusal is encountered at shallower depths. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. Borings located in potentially contaminated areas will use cased mud-rotary methods. The borings will be performed utilizing a truck-mounted drill rig and will generate an approximately 6-inch diameter annulus. Sampling will be conducted using a 2-inch o. D., split-barrel sampler driven into the soil a distance of 18 or 24 inches by a 140-pound hammer falling inches.

Excavation; boring test pit (single)

Excavation; boring test pit (single)

Excavation; boring test pit (each addl)

Installation of 18 geotechnicial borings at the south corrodon project stage-1-b-site in support of design for the proposed suitland parkway interstate 295 interchange improvement. Borings diameter eight inches by feet deep. The work will take place in different section i-295 anacostia fwy, howard road se, suitland parkway se and mlk jr. Ave se, as per site plans, work plans report, de well construction form and schematic form; this project is for ddot. (dcka-2011-q-0241)

On behalf of the district of columbia water and sewer authority (dc water), the dc clean rivers (dccr) project requests the approval to abandon 1 monitoring well (sac-101). The well is located adjacent to suitland parkway and howard rd se. The monitoring well was 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 are now complete. Therefore, the wells installed as part of this division are 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. Monitoring wells will be abandoned following doee regulations. See attached work plan for more details.

Scb will perform 3 borings will extend to the depth of feet and 4 borings to feet unless refusal is encountered at shallower depths. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. Borings located in potentially contaminated areas will use cased mud-rotary methods. The borings will be performed utilizing a truck-mounted drill rig and will generate an approximately 6-inch diameter annulus. Sampling will be conducted using a 2-inch o. D., split-barrel sampler driven into the soil a distance of 18 or 24 inches by a 140-pound hammer falling inches.

Construction staging area