ECS MIDATLANTIC

6 I St Sw, Washington, Dc 20024
We will perform five geotechnical borings on the proposed site. Three of the borings will be advanced to a depth of feet, the remaining two will be advanced to a depth of 1 feet and all will be located within the bounds of the property. The borings will be performed utilizing an atv-mounted drill rig utilizing 3. 25-inch hollow stem, continuous flight augers. The borings will generate an approximate 6-inch annulus. After geotechnical exploration is completed, the boring will be backfilled with bentonite slurry.

11 Michigan Ave Ne, Washington, Dc 20017
Six soil boring will be advanced for environmental and geothermal testing. The remaining four borings will be advanced to for the collection of environmental stamples.

1449 U St Nw, Washington, Dc 20009
We will perform a total of four soil borings on the proposed site. Two of the boring will be advanced to a depth of feet, and two borings will be advanced to a depth of feet. The borings will be located within the bounds of the private property. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The borings will be performed utilizing an atv-mounted drill rig and will generate an approximate 6-inch annulus. After geotechnical exploration is completed, the borings will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water.

1325 36th St Nw, Washington, Dc 20007
We will perform two soil borings on the proposed site. The boring will be advanced to a depth of 25 feet, and will be located within the bounds of the property. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The boring will be performed utilizing an atv- mounted drill rig and will generate an approximate 6-inch annulus. After geotechnical exploration is completed, the boring will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water.

1427 Rhode Island Ave Nw, Washington, Dc 20005
We will perform a total of one geotechnical boring on the proposed site. The boring will be drilled to 45 feet bsg, utilizing 3. 25-inch hollow stem, continuous flight augers. The boring will be performed utilizing an atv mounted drill rig and will generate an approximately 6-inch annulus. Backfill of the boring upon completion will be with bentonite slurry that has a mix design of two pounds bentonite powder to one gallon of water.

4525 Benning Rd Se, Washington, Dc 20019
We will perform a total of two borings extended to a depth of 25 feet. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The borings will be performed utilizing an atv mounted drill rig and will generate an approximately 6-inch annulus. Backfill of the boring upon completion will be with bentonite slurry that has a mix design of two pounds bentonite powder to one gallon of water. Additiionally, three(3) test pits will be advanced next to the westernmost retaining walls to measure the existing wall footing.

1429 Rhode Island Ave Nw, Washington, Dc 20005
We will perform a total of one geotechnical boring on the proposed site. The boring will be drilled to 45 feet bsg, utilizing 3. 25-inch hollow stem, continuous flight augers. The boring will be performed utilizing an atv mounted drill rig and will generate an approximately 6-inch annulus. Backfill of the boring upon completion will be with bentonite slurry that has a mix design of two pounds bentonite powder to one gallon of water.

1766 Lanier Pl Nw, Washington, Dc 20009
We will perform a total of two borings at the proposed site. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The boring will be performed utilizing an atv mounted drill rig and will generate an approximately 6-inch annulus. Backfill of the boring upon completion will be with bentonite slurry that has a mix design of two bentonite powder to one gallon of water.

48 Georgia Ave Nw, Washington, Dc 20011
Installation of 4 2 inch groundwater monitoring well using a hollow-stem auger rig. The wells will be installed to a depth of approximately feet bgs or five feet into the water column or when refusal is encountered. The wells will be constructed of gauge pvc with feet of 0. 0 inch slotted screen at the bottom of each well. Number 2 sand will be placed around the screen with 2 feet of medium bentonite chips extending above the sand. A bentonite/portland cement/potable water grout will then be placed from the top of the bentonite chips tot just below the surface. The wells will be flush mounted with locking well caps. Soil samples and groundwater will be collected for laboratory analysis.