ECS MIDATLANTIC LLC

22 Railroad Ave Se, Washington, Dc 20020
We will perform a total of three soil borings on the proposed site. The borings will be advanced to a depth of 65 feet below existing site grades, and 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/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

2201 Shannon Pl Se, Washington, Dc 20020
We will perform a total of two soil borings on the proposed site. The borings will be advanced to a depth of 65 feet below existing site grades, and 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/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

64 New York Ave Ne, Washington, Dc 20002
We will perform a total of three soil borings on the proposed site. The borings will be advanced to a depth of feet below existing site grades, and 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/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

3501 International Pl Nw, Washington, Dc 20008
We will perform a total of three soil borings on the proposed site. Each of the borings will be advanced to a depth of feet below existing site grades, and 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. Borehole abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole.

524 Rhode Island Ave Ne, Washington, Dc 20002
We will perform a total of five soil borings on the proposed site. Three of the borings will be advanced to a depth of feet, and two of the borings will be advanced to a depth of feet below existing site grades, and 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. Borehole abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole.

4525 Benning Rd Se, Washington, Dc 20019
We will perform a total of three 3 soil borings on the proposed site accompanied by three 3 auger probes. The borings will be advanced to a depth of feet below existing site grades and the auger probes will be advanced to 5 feet below existing grade. The borings will be located within the bounds of the private property. The borings will be drilled utilizing a 3. 25 inch hollow stem, continuous flight augers. The borings will be performed utilizing a truck-mounted drill rig and will generate an approximate 6-inch annulus. After geotechnical exploration is completed, the borings will be backfilled, in accordance with ddoe requirements, with bentonite slurry which has a consistency of two pounds bentonite powder to one gallon water.

3 Florida Ave Ne, Washington, Dc 20002
Advance a total of 23 soil borings for the purpose of post excavation confirmatory sampling as per the vrap approved on june 16, 2015. The borings will be used to collect soils samples and following boring completion, the borings will be abandoned using a hydrated bentonite slurry, 2 pounds powdered bentonite to 1 pound water placed progressively at the bottom of the boring with a tremmie pipe to the surface. Ecs will abandon two monitoring wells located within the property. The monitoring wells will be abandoned by making an attempted to remove the 2-inch pvc from the ground. If the pvc cannot be removed, a tool will be inserted into the well to rip the pvc to ensure that the well casing and screen are filled with the grout material. After the pvc has either been removed or ripped, the previously detailed hydrated bentonite slurry will be placed progressively at the bottom of the wells with a tremmie pipe to the surface. Any waste material generated pvc, well cover, etc will be dispos

3 Florida Ave Ne, Washington, Dc 20002
Ecs will abandon two monitoring wells located within the property. The monitoring wells will be abandoned by making an attempted to remove the 2-inch pvc from the ground. If the pvc cannot be removed, a tool will be inserted into the well to rip the pvc to ensure that the well casing and screen are filled with the grout material. After the pvc has either been removed or ripped, the previously detailed hydrated bentonite slurry will be placed progressively at the bottom of the wells with a tremmie pipe to the surface. Any waste material generated pvc, well cover, etc will be disposed of appropriately.

7 M St Se, Washington, Dc 20003
We will perform a total of two soil borings on the proposed site. The borings will be advanced to a depth of feet below existing site grades, and 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. Borehole abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole.

12 4th St Ne, Washington, Dc 20002
We will perform two borings on this lotextended to depths of feet below existing grades. The borings will be drilled utilizing a 3. 25 inch, hollow stem continuous flight auger and will generate an approximately 6 inch annulus. After geotechnical exploration is completed, the boring will be backfilled with bentonite slurry consisting of 2 lb. Of bentonite powder to every 1 gallon of water. Borehole abandonment will be performed tremie grouting via a positive displacement pump for the bottom of the borehole.

3 Florida Ave Ne, Washington, Dc 20002
6 soil borings, including 3 monitoring wells, will be advanced with a hollow stem auger drilling rig. Borings will go to 45 feet below grade and will be approx. 6 inches diameter. Soil borings will be abandoned by filling the hole with bentonite powder and water using a 2 to 1 ratio mix.

16 Kalmia Rd Nw, Washington, Dc 20012
We will perform a total of two soil borings on the proposed site. The borings will be advanced to a depth of feet below existing site grades, and will be located within the bounds of the private property. The borings will be drilled utilizing 4. 25-inch hollow stem, continuous flight augers and/or mud rotary drilling. The borings will be performed utilizing a truck or atv-mounted drill rig and will generate an approximate 6-inch annulus. After geotechnical exploration is completed, the borings/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

P St Ne, Washington, Dc 20002
1x foot soil boring drilled with 3. 25 inch hollow-stem augers, creating a 6 inch boring annulus. Boring grouted upon completion.

28 8th St Ne, Washington, Dc 20017
We will perform a total of four borings on the proposed site. The borings will each be extended to a depth of feet below existing site grades. The borings will be sited within the asphalt-paved auto yard and parking area and will be located within the bounds of private property. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The borings will be performed utilizing a truck-mounted drill rig and will generate an approximately 6-inch annulus. Backfill of the boring will be with bentonite slurry that has a mix design of two pounds bentonite powder to one gallon of water. No additional additives besides potable water will be incorporated into the drilling fluid. Each borehole will be grouted as soon as possible, but no more than twenty-four hours after each borehole drilling has been completed.

64 New York Ave Ne, Washington, Dc 20002
We will perform a total of four soil borings on the proposed site. The borings will be advanced to a depth of feet below existing site grades, and 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/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

4101 Reservoir Rd Nw, Washington, Dc 20007
Three geotechnical soil borings to depths of 25 feet with an atv- or truck-mounted drill rig by a continuous hollow-stem auger method. The borings will have an annulus of approximately 6 inches.

23 H St Nw, Washington, Dc 20037
We will perform a total of two geotechnical soil borings on the proposed site. The borings will be advanced to a depth of 45 feet below existing site grades, and 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.

2 K St Ne, Washington, Dc 20002
2x1 geotechnical borings drilled with 4. 25 hollow-stem augers creating a 6 inch annulus. Once the confining layer is reached, a permanent casing will be installed ( feet into the confining layer) and grouted into place to the ground surface. The borings will be completed with mud-rotary drilling through the casing and grout. After completion of the borings, the borings will be grouted to (below-grade) and converted into monitoring wells. Additionally, two separate, monitoring wells will be installed with 4. 25 hollow-stem augers, creating a 6 inch boring annulus. All four wells to be abandoned in accordance with ddoe approved abandonment permit.

0 Water St Sw, Washington, Dc 20024
Ten soil borings. The borings will each be extended to a depth of feet below existing site grades.

323 62nd St Ne, Washington, Dc 20019
Eight soil gas sampling points will be installed to a depth of feet below existing surface grades. Sampling points will be installed using 0. 5 inch steel rods and will consist of a stainless steel soil gas sampling point connected to 0. 25 inch polyethylene tubing. The sampling points are not expected to penetrate groundwater depths.

501 K St Nw, Washington, Dc 20001
Eightatv mounted drill rig and will generate an approximately 6-inch 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. If the confining unit is encountered during drilling then advancement of the augers should be halted and the permanent outer casing should be set into 5 feet down to the confining unit and grouted in place using bentonite slurry. Drilling should resume through the casing and grout.

23 Florida Ave Ne, Washington, Dc 20002
1x foot soil boring drilled with 3. 25 inch hollow-stem augers, creating a 6 inch annulus. Boring grouted upon completion.

61 Pierce St Ne, Washington, Dc 20002
We will perform a total of three soil borings on the proposed site. The borings will be advanced to a depth of 75 feet below existing site grades, and 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.

2607 Military Rd Nw, Washington, Dc 20015
We will perform a total of six soil borings on the proposed site. Two borings will be advanced to a depth of feet below existing site grades, two borings will be advanced to a depth of 25 feet below existing site grades, and two borings will be advanced to a depth of feet below existing site grades. All borings will be located within the bounds of the private property. The borings will be drilled utilizing 4. 25-inch hollow stem, continuous flight augers and/or mud rotary drilling. 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/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

14 Rhode Island Ave Ne, Washington, Dc 20018
We will perform two soil borings and two infiltration auger probes on the proposed site. The borings and infiltration auger probes will be advanced to depths of feet and 8 feet, respectively. The borings/auger probes will be located within the bounds of the property. The borings/auger probes will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The borings/auger probes will be performed utilizing an atv and/or truck-mounted drill rig and will generate an approximate 6-inch annulus. After geotechnical exploration is completed, the borings/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

222 M St Sw, Washington, Dc 20024
We will perform a total of five soil borings on the proposed site. The borings will be advanced to a depth of feet below existing site grades, and 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. Borehole abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole.

1624 Crescent Pl Nw, Washington, Dc 20009
Six geotechnical soil borings drilled with 3. 25 inch hollow-stem augers. Two borings at 45, 2 at 60, and 2 at 70.

1601 South Capitol St Sw, Washington, Dc 20003
One soil boring approximately 6 inches in diameter with a geotechnical drill rig by hollow auger stem method and approximately 15 feet in depth.

2607 Military Rd Nw, Washington, Dc 20015
We will perform a total of two soil borings on the proposed site. The borings will be advanced to a depth of feet below existing site grades, and will be located within the bounds of the private property. The borings will be drilled utilizing 4. 25-inch hollow stem, continuous flight augers and/or mud rotary drilling. 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/auger probes will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive-displacement pump from the bottom of the borehole/auger probe.

3299 M St Nw, Washington, Dc 20007
We will perform a total of two borings on the proposed site. The borings will each be extended to a depth of feet below the existing slab on-grade utilizing a wildcat dcp and a hand-operated auger. Coring of the existing concrete slab on-grade will be performed to make access for the two borings. The hand auger will generate an approximate 4-inch annulus. Sampling will be conducted by obtaining the auger spoils and placing them in glass jars for geotechnical classification. 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.

222 Massachusetts Ave Nw, Washington, Dc 20001
Install one monitoring well on the property to gauge depth to groundwater and collect one groundwater sample for as required by the dc water temporary discharge authorization permit application.

1925 14th St Nw, Washington, Dc 20009
We will perform two soil borings on the proposed site. The boring will be advanced to a depth of 65 feet, and will be located within the bounds of the property. The boring 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.

10 Brentwood Rd Ne, Washington, Dc 20018
We will perform a total of soil borings on the proposed site. The borings will each be advanced to a depth of feet, and 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.

3221 12th St Ne, Washington, Dc 20017
We will perform one soil boring on the proposed site. The boring will be advanced to a depth of feet, and will be located within the bounds of the property. The boring 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.

2101 Martin Luther King Jr Ave Se, Washington, Dc 20020
1 geotechnical soil boring drilled to ft using a hollow stem auger, creating a boring approximately 6-inch in diameter

4 6th St Sw, Washington, Dc 20024
Advance four 2-inch soil borings using hand equipment consisting of a slide hammer and rods to a depth of 4 feet below ground surface beneath the slab of an existing building to create one composite soil sample. The composite soil sample will be analyzed for soil disposal parameters typically requested by a soil disposal facility.

3 Morse St Ne, Washington, Dc 20002
4 geotechnical soil borings drilled to feet using a hollow stem auger, creating a boring approximately 6-inch in diameter

2241 Martin Luther King Jr Ave Se, Washington, Dc 20020
1 geotechnical soil boring drilled to ft using a hollow stem auger, creating a boring approximately 6-inch in diameter

3219 12th St Ne, Washington, Dc 20017
We will perform one soil boring on the proposed site. The boring will be advanced to a depth of feet, and will be located within the bounds of the property. The boring 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.

2235 Shannon Pl Se, Washington, Dc 20020
3 geotechnical soil borings drilled to feet using a hollow stem auger, creating a boring approximately 6-inch in diameter

901 16th St Nw, Washington, Dc 20006
We will perform four borings at the private parking lot used by liuna. The borings will be extended to 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. Upon completion of drilling operations the borehole will be backfilled with bentonite slurry that has a mix design of two pounds bentonite powder to one gallon of water.

15 Pennsylvania Ave Se, Washington, Dc 20003
2 total soil borings - 1 to ft, 1 to ft

1351 Wallach Pl Nw, Washington, Dc 20009
We will perform one soil boring on the proposed site. The boring will be advanced to a depth of 65 feet, and will be located within the bounds of the property. The boring 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.

1215 K St Ne, Washington, Dc 20002
We will perform a total of 2 soil borings on the proposed site. The borings will each be advanced to a depth of feet, and 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.

38 Reservoir Rd Nw, Washington, Dc 20057
We will perform a total of four geotechnical borings on the proposed site. The borings will be extended to varying depths as follow: one boring to feet, two borings to feet, and the remaining boring to feet, all depths below existing grades. The borings will be drilled utilizing 3. 25-inch hollow stem - 6-inch o. D., continuous flight augers. Upon completion, backfill of the borings will be with bentonite slurry.

1005 1st St Ne, Washington, Dc 20002
4 geotechnical soil borings drilled to feet using a hollow stem auger, creating a boring approximately 6-inch in diam

11 Michigan Ave Ne, Washington, Dc 20017
Advance eight soil borings using a geoprobe direct-push drill rig to collect soil and groundwater samples across the property. The borings will be 2-inch diameter and will be completed at a depth of feet below ground surface. Temporary piezometers will be placed in four of the borings to facilitate groundwater collection, but will be removed the day of drilling.

39 Georgia Ave Nw, Washington, Dc 20011
2 - geotechnical soil borings

1311 13th St Nw, Washington, Dc 20005
2 geotechnical soil boring drilled to feet using a hollow stem auger, creating a boring approximately 6-inch in diameter

10 3rd St Ne, Washington, Dc 20002
We will perform a total of one soil boring on the proposed site. The boring will be advanced to a depth of feet, and will be located within the bounds of the private property. The boring 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.

1725 15th St Ne, Washington, Dc 20002
Two deep geotechnical soil borings drilled with 3. 25 inch hollow-stem augers.

1449 U St Nw, Washington, Dc 20009
We will perform two borings on the proposed site. The borings will be extended to feet and will be located within 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 approximately 6-inch annulus. After geotechnical exploration is finished the backfill of the borings will be with bentonite slurry that has a minimum mix design of two pounds bentonite powder to one gallon of water.

911 2nd St Ne, Washington, Dc 20002
Perform 3 40-foot deep soil borings and two foot deep soil borings on the subject property for geotechnical engineering exploration. Two infiltration tests will also be performed.

10 21st St Nw, Washington, Dc 20036
Perform 4 borings for a geotechnical exploration on the site.

1026 3rd St Ne, Washington, Dc 20002
We will perform a total of one soil boring on the proposed site. The boring will be advanced to a depth of feet, and will be located within the bounds of the private property. The boring 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.

12 4th St Ne, Washington, Dc 20002
Drill twol borings to a depth of 35 feet from grade using geoprobe methods. Collect soil and groundwater samples for testing. Containerize drill cuttings. Remove all temporary well screens the same day as drilling, grout holes and patch concrete.

2852 Connecticut Ave Nw, Washington, Dc 20008
2 - geotechnical borings at the rear of the property.

611 Alabama Ave Se, Washington, Dc 20032
Perform four soil borings and four insitu infiltration tests.

3217 12th St Ne, Washington, Dc 20017
We will perform one soil boring on the proposed site. The boring will be advanced to a depth of feet, and will be located within the bounds of the property. The boring 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.

0 Kenilworth Ter Ne
Perform a total of 3 boring on the propossed site. Advanced to a depth of to ft below the site grades. Borings to be in private property. The borings will be drilled using 3. 25 inch hollow-stem continuos flight augers. Borings to be performed utilizing a truck- mounted drill rig and will generate 6-inch annulis. After testing, the borings will be backfilled in accordance with doee requirements with a bentonine slurry, which has a consistency of 2 pounds bentonite powder to one gallon of water.

0 Kenilworth Ter Ne
Perform a total of 2 boring on the propossed site. Advanced to a depth of to ft below the site grades. Borings to be in private property. The borings will be drilled using 3. 25 inch hollow-stem continuos flight augers. Borings to be performed utilizing a truck- mounted drill rig and will generate 6-inch annulis. After testing, the borings will be backfilled in accordance with doee requirements with a bentonine slurry, which has a consistency of 2 pounds bentonite powder to one gallon of water.

6201 Georgia Ave Nw, Washington, Dc 20011
Eight borings advanced with a 6" hollow stem auger to a top a confining level were shollow groudwater is encountered . Soil and ground water will be collected from the temporary piezometer installed in the boring also four interior boring will be advance using 2" hand equipment untill refusal. All boring will be filled using a bentonite slurry filling from bottom of boring to the top.

648 H St Ne, Washington, Dc 20002
Five environmental borings will be advanced with geoprobe direct-push drill rig to a depth of 25 ft below ground surface. Diameter of borings will be approximately 3". Soil will be screened and sampled onsite and groundwater samples will be collected from temporary piezometers placed in two of the five borings. All borings will be grouted with approved bentonite slurry upon completion. Work will be completed on square 0858; lots 0801, 0802, 0800, 0001, & 0002.

1601 Wisconsin Ave Nw, Washington, Dc 20007
Nine geotechnical and environmental soil borings to an approximate depth of feet below existing site grades to be located within private property. Three borings will be converted to permanent monitoring wells. The borings will be drilled with a 3. 25 inch hollow stem auger, generating a 6 inch annulus.

631 H St Nw, Washington, Dc 20001
4 environmental borings will be advanced with geoprobe direct-push drill rig to foot depth, 2. 25 inches diameter. 4 geotechnical borings will be advances to 55 foot depth, 4. 25 inches diameter will be dug with hallow stem auger drill rig. 6 test pits (2. 5 x 2. 5 x 4) will be dug with a backhoe to observe foundations and will be backfilled with spoils. All borings to be grouted with bentonite slury upon completion.

1441 U St Nw, Washington, Dc 20009
Ecs will employ a geoprobe direct-push drill rig to collect soil samples from 11 boring locations located throughout the site, outside of the existing buildings. Soil borings will be advanced to refusal, groundwater, or to the planned depth of excavation, whichever is encountered first. Four of the soil borings will be advanced to groundwater, assuming it is encountered at a depth obtainable by a geoprobe drilling rig. The maximum depth for a geoprobe is ft. Backfill of the boring will be with bentonite slurry with a mix design of two pounds bentonite powder to one gallon of water and the grout will be placed via tremie to the bottom of each bore hole.

1827 Wiltberger Street Nw Washington Dc
Construction staging area

28 8th St Ne, Washington, Dc 20017
Install 4 borings on the property using a below-stem auger frill rigg to a depth of feet. Each of the borings will be converted into temporary monitoring wells in order to sample groundwater beneath the property.

105 Harry Thomas Way Ne, Washington, Dc 20002
A total of 11 borings will be completed utilizing geoprobe direct push drill rig using a duel a tube sampling device. The borings will create a 2. 25 inch anulus. 5 borings will be completed to a depth of 35 feet below ground surface and 6 borings will be completed to a depth of feet below ground surface. Following completion of the soil borings holes will be tremme grouted from bottom to top using a mixture of powdered bentonite and potable water per doee recommendation.

17 Good Hope Rd Se, Washington, Dc 20020
A total of 5 borings will be completed utilizing a geoprobe direct push drill rig using a duel tube sampling device. The boring will create a 2. 25 inch anulus. The geoprobe will advance 1 borings to and anticipated depth of 35 feet below ground surface, and 4 borings to an anticipated depth of feet below ground surface. Soils will be screened using a pid and select samples will be selected for laboratory analysis. Following completion of the soil borings holes will be tremme grouted from the bottom to the top using a mixture of powdered bentonite and potable water.

6 T St Nw, Washington, Dc 20001
Preform one soil boring to a depth of 35 feet below surface grade or until groundwater is encountered, whichever is first. The diameter of the bore hole will be 2. 25 inches. Select soil and groundwater samples will be collected from the boring. Permanent groundwater monitoring wells will not be installed. Following the completion of the borings, borings will be grouted. See the attached work plan for specific details regarding the soil sampling and grouting.

608 T St Nw, Washington, Dc 20001
Preform one soil boring to a depth of 35 feet below surface grade or until groundwater is encountered, whichever is first. The diameter of the bore hole will be 2. 25 inches. Select soil and groundwater samples will be collected from the boring. Permanent groundwater monitoring wells will not be installed. Following the completion of the borings, borings will be grouted. See the attached work plan for specific details regarding the soil sampling and grouting.

105 Harry Thomas Way Ne, Washington, Dc 20002
A total of borings will be completed utilizing a geoprobe direct push drill rig using a duel tube sampling device. The borings will create a 2. 25 inch anulus. 3 borings will be completed to a depth of feet below ground surface and 7 borings will be completed to a depth of feet below ground surface. Following completion borings will be tremme grouted from bottom to top using a mixture of powdered bentonite and potable water per doee recommendation.

1827 Wiltberger Street Nw Washington Dc
Construction staging area

1827 Wiltberger Street Nw Washington Dc
Construction staging area

27 16th St Nw, Washington, Dc 20009
Preform a total of 8 soil borings across the property with a geoprobe drill rig to a depth of 35 ft below surface grade. The diameter of the boreholes will be 2. 25 inches. Select soil and groundwater samples will be collected from each boring. Permanent groundwater wells will not be installed. Following completion of the borings, the borings will be grouted. See the attached workplan for specific details regarding the soil/groundwater sampling and grounting

1827 Wiltberger Street Nw Washington Dc
Construction staging area