Cascade provides significant advantages over other drilling contractors. Over the past fifteen years we have successfully completed numerous large drilling projects from Seattle to southern California. Our extensive experience and technical abilities allow us to respond effectively to your needs and help ensure that your project proceeds as smoothly as possible.

Cascade's preparedness and high productivity reduce on-site time and saves you money. In order to boost productivity, we operate a broad range of well maintained, late model equipment operated by experienced, cooperative crews. In order to increase productivity and decrease time in the field, we include a "third man" to assist in decon and site cleanup while the rig moves to the next drilling location.

To reduce site impacts and decontamination costs, Cascade has developed specialized, self-contained decontamination trailers to contain the mess usually associated with cleaning drill equipment. This saves cleanup time and reduces site impact.

Our drillers are licensed to drill and install wells in the states of Oregon, Washington, Montana, Wyoming, California, Nevada, Arizona, and Idaho. Our personnel are continuously trained on the job and in shop training sessions by our Operations Management and by our senior drillers. Our drill rigs and crews are prepared to upgrade to Level C with Tyvek, rubber gloves and boots, and half face respirators. Level B equipment can be provided.

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CASCADE DRILLING, INC. Rig Descriptions

Depths and diameters drilled with the above rigs:
(depth dependent on subsurface conditions and can vary significantly)

1. IR T3W/Speedstar 30K ...............................1000' + with 8" diameter hole

2. Sonic CS-500 ................................................500' + with 8" diameter hole

3. CME 95 High Torque ..................................350' + with 8" diameter hole

4. CME 85 High Torque.................................. 250' with 8" diameter hole

5. CME 75 High Torque.................................. 200' with 8" diameter hole

6. CME 75 Limited Access.............................. 80' with 8" diameter hole

7. CME 75 Rubber Track Rig......................... 150' with 8" diameter hole

Other equipment owned and routinely provided by Cascade:

Vac/Air Knife trucks for buried utility locate, self contained decon trailers with steam cleaners, flatbed and van support trucks, concrete coring equipment, air compressors and a wide assortment of pumps, jackhammers, limited access and tracked vehicles for off road use, geoprobe, hydropunch, and large mud rotary systems.

Sonic Drilling

Sonic drilling ushers in a new era in drilling technology. Cascade has purchased three new CS 500 Sonic Drill Rigs (2005 model year) and they have been operating continuously on projects ranging from small environmental site investigations, to major monitoring well installations for the U.S. Department of Energy at the Hanford Nuclear Reservation, and installation of large thermal remediation systems at Fort Lewis, WA for the U.S. Army Corps of Engineers. Sonic provides the cleanest installations of multi-point (CMT-type) wells where precise depth installations are critical. Cascade has installed over 100 CMT wells to depths of 300 feet (currently the deepest CMT well installations in the U.S.).

Our rigs have been outfitted with hydraulically operated decks which provide a clean platform from which all drilling operations can be conducted. All rigs have hydraulic rod spinners which make adding rod and ‘tripping out’ a much safer and more efficient process. Casing and rod is handled by the boom hoist on board the support rig. Overall, sonic is the safest, cleanest, and most efficient drilling method available.

Sonic Drilling Advantages-

• Increased safety – ergonomic design, rod spinner, hoist for rod and casing handling, new equipment in excellent condition all add up to less risk
• Unmatched productivity – 20 foot stroke, rod spinner, new 2005 model rigs all means less field time and lower overall project costs
• Significant reduction in waste (up to 80% less waste than conventional methods)
• Continuous large diameter core samples provide unmatched lithology
• Sonic drilling is a dry drilling method, no air, water, or mud is introduced; less waste and cleaner samples are
• Better control of heaving sands with continuously advanced casing
• Better well installations – vibration eliminates bridging and allows introduction of a quality sand pack vibrated neatly into place

Hollow Stem Auger

Cascade Drilling, Inc. has converted its late model CME 75 auger rigs to a high torque configuration to obtain 22,000 foot pounds of torque; nearly twice the torque of a Mobile B61. Several rigs are capable of drilling to 200' with 8" diameter hole. One rig is equipped for angle holes up to 45 degrees off of vertical. The CME 75's are truck mounted with a Nodwell tracked vehicle mounting available for access on soft ground.

Conductor casing up to 9" diameter can be set up to 50 feet deep by using 10" ID x 15" OD augers. Monitoring wells may then be set using a 4 1/4 ID auger. The rigs are also equipped with asphalt "cookie cutter"and concrete "bull dog" bits.

Direct Push (Probe) and in-situ Injection Services

Cascade Drilling has been a leader in providing probe and injection services since inception. Back in the early 1990’s we fabricated our own probe rigs and they were the most powerful rigs available at the time. A few are still in operation and they continue to hold their own, however we have moved away from manufacturing major pieces of equipment as companies like Geoprobe and AMS now produce equipment that is state of the art. We were the first company in Western North America to inject Regenesis’ HRC™ at a dry cleaner site in the Northwest and we continue to lead the way in the injection of in-situ remediation products. (Join our email list to receive notification of our next seminar on ‘In-situ Remediation Technologies’).

Cascade has a growing fleet of 15 Direct Push rigs, including:

Air Rotary

Cascade Drilling, Inc. has equipped its late model Ingersoll Rand T3Ws and Speedstar rigs to be as versatile as possible. The air rotary rigs are set up to drill air rotary and drive casing, or air rotary with Odex and are operated by a three man crew.

The rig's air compressor is double filtered to remove residual oil. Sampling is accomplished with a 140 pound Mobil safety driver which is lowered down the hole on a wireline. The sampler is driven by a free fall winch and retrieved, saving time over the drill rod method. The sampler may be attached to drill rods if required. Drilling deeper holes in unconsolidated formations is accomplished with the drill and drive method. The casing is advanced by an Aardvark hammer which swings out for ease of sampling and well installation. Cascade has 13", 12", 10", and 7" OD threaded casing in 5' and 10' lengths to allow for various sampling intervals. Odex underreamer systems are used when drill and drive is not possible due to large boulders or bedrock.

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Selected Project Experience

Cascade Drilling Inc. has performed hundreds of projects for environmental assessments and groundwater investigations. Below is a short list of projects we have performed which required environmental drilling services.

• CH2M Hill, Railroad Tie Treatment Facility, OR

Description: Air rotary Odex drilling to install 17-8" diameter DNAPL extraction wells and 6-8" hydraulic containment wells. Auger drilling of 23 water flooding wells and abandonment of four monitoring wells to depths of 90-feet. Rock coring of basalt.

• SECOR Inter., Inc., Clackamas, OR

Description: Air rotary Odex drilling to install several Waterloo multilevel groundwater monitoring systems within alluvial gravels. Multilevel systems were used to obtain hydrologic data from various elevations within a single borehole. Complex instrumentation clusters were installed in wells.

• EMCON, Manufacturing Facility, Gresham, OR

Description: Air rotary Odex drilling to install 4-6" diameter extraction wells with step downs in casing sizes at aquitards through alluvium and sandstone formations.

• Boeing, Boeing Gresham Facility, OR

Description: Air rotary Odex drilling to install numerous monitoring wells, vapor extraction wells, and water extraction wells to depths of up to 350 feet with multiple step downs in casing size to isolate different water zones encountered at site.

• Roy F. Weston, Mine Site, Southern Oregon

Description: Multiple rigs employed to enhance project schedule. Air rotary both drill and drive and Odex, were used to install multiple monitoring wells to up to 400-feet depth through alluvium, tailings, and fractured basalt. Auger drilling with truck and track mounted CME drill rigs.

. • Kleinfelder, Inc., Oil Terminal, Portland, Oregon Description: Crane-assisted drilling with limited access drill rig to install 4" vapor wells & 1" sparge points within a 27-foot high containment wall.  A total of eight drill rig placements by a 45-ton crane were required.  Two-way communication was used to safely move equipment & supplies over the 27-foot high wall.  Project was completed 2 days ahead of schedule. .• Landau Associates, Sand & Gravel Facility, Portland, Oregon  Description: Over water barge work with limited access rig.  Completed sediment sampling in settling ponds to depths of 40 feet.  Cascade used a continuous sampling system with 5-foot long core barrels (3 1/4" ID sampler) to provide sufficient sample volume for sediment analysis.  The continuous system used provided sample orientation & directional trends of contaminates.  . Back to Top of Page [Who We Are] [Safety][Environmental][Geotechnical][ATV&Low Clearance][On-Line Services][Helpful Facts][News]