Geotechnical Drilling Services
Our fist of hundreds of geotechnical drilling jobs started in 1986. We offer experienced and professional crews to help determine ground conditions and soil formations. To obtain this information we have a variety of truck, track and remote access drilling equipment.
Type of Services
- Soil borings – hollow stem & solid flight augers
- SPT sampling
- CAL mod sampler
- 5’ Dry core sampling
- Selby tube sampler
- Monitor Wells
Groundwater Investigation - Wells Along Russian River - Sonoma County
Truck, track, Remote Access
CME 75 - Santa Rosa
Slide Drilling - St. Helena - Napa County
Deeprock - DR5K
Medium Torque Truck Auger Rig- 15’ stroke, Fast with solid-flight augers for borings to 25’-30’ as can hang 10’ – 15’ of augers.
- Auger Rig
- Torque – 5,000 Ft.-lb.
- Long stroke – 15’
- Cathead, 140#, 30” drop
- 8.25’ Wide
- 22’ Long
- 11.5’ high (mast dn.)
- 25’ high (mast up)
- Weight – 23,000 lb.
Limited Access Track Rigs
DR8K - Sacramento
Deeprock - DR8K
Rubber track auger rig- variable height mast. Excellent inside bldg. under power-lines, under canopies and inside narrow spaces. Can take 10” augers to 100’
- Auger Rig
- Angle drilling
- Torque – 7500 ft-.lb
- Mono Pump
- Powers Portable rig for remote use
- 5 ’-2” Wide
- 13’ Long
- 7 ’ 3” high (mast dn.)
- Min. Ht. 8’-9” with SFA
- Min. Ht. 9’-6” with HSA
- Weight 10,300 lb.
All-Terrain Track Auger Rigs
Creek Bed - Mendocino County
Morooka Track - All-Terrain Drill Rig
If you can walk it we can drill it.
Very stable. Slopes up to 30 degrees. Excellent on muddy sites.
Portable drill rig can be powered up to 250’ from this rig.
- Augers - up to 11”
- Torque – 3,000 ft-lb
- Rubber tracks – 20” wide
- Cathead and 140# drop hammer
- 7’ wide
- 13’ Long
- 7 ’ high
- Weight - 12,000 lb.
Remote Access – Portable - Auger Rig
Hillside Los Gatos
Portable Remote Access Auger Drill
Can be set up in remote locations – hillsides, under canopies, under bridges, in ditches, inside closets, in rooms, basements, etc.
Access to drill location can be through narrow door, through windows, over walls, down hillsides, etc.
Rig is hand carried to drill locations in components (mast, rotary head, base, cathead, controls, 140# drop hammer, samplers, rods, augers) and assembled over hole.
Two hydraulic hoses are extended from DR8K or Morooka rig to power Portable drilling rig. Maximum distance from power source – 250’
- Augers up to 11”
- Torque – 3,000 Ft.-lb.
- Cathead and 140 lb .drop-hammer
- Concrete coring
- Rig can be bolted to concrete floor
- Rig can be staked to hillside
- Minimum passage width 24”.
- Minimum work area 3’ X 6’
- Minimum overhead 8’ with SFA & 9.5’ with HSA .
Off-Road Support Equipment
All-Terrain - Northern California
Morooka Support Vehicle
All-terrain, rubber tracks.
It can go where our support trucks cannot go.
It has a hydraulic dump bed and is capable of moving pallets of materials, augers, rods, water tank, generator and other equipment.
- Width – 7’
- Length – 12’
- Height – 6.5’
- Weight – 12,000 lbs.
Support trucks, pumps, generators, pressure washers, decon ponds, hoses, forklift, hopper, concrete core barrels, etc.
Click on the picture for more information
For more photos (click here) To go to our photo gallery
Health and Safety:
All personnel have current 40-hr OSHA health and safety training and participate in a medical surveillance program. We provide our own PPE.