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Clean Water Drilling Projects

Our senior team members have over 20 years of experience with clean water wells. Here's a sampling of clean water well projects we've completed.

>> Click photos to enlarge.

AQUIFER STORAGE AND RECOVERY (ASR), WELL 5, SORRENTO WELLFIELD, BEAVERTON, OR
Drill, test, and install a fifth well in the City of Beaverton's aquifer storage and recovery system.

This drilling project was designed as a test well with multiple options for testing and completion. Final completion will be decided based on the results of lower and upper aquifer testing. The preferred completion would have 24 inch casing to 250 feet, 20 inch casing to 520 feet and 16 inch casing to 1,000 feet.

A five-day constant rate test pumping at 1,000 GPM is planned, with the water being conveyed into three discharge points.

Challenging conditions include a tight work site close to existing structures, noise constraints, and drilling in a residential area.

Client: City of Beaverton
Drill Rig: DR-24 truck mounted rig
Drilling Method: Dual Rotary
Duration: 4 Months
Estimated completion: Dec 2016

INSTALL THREE NEW WATER WELLS AT MILITARY BASE NEAR TACOMA, WA
Drill and install water wells at Joint Base Lewis McCord (JBLM), FY 2012 Infra Upgrade Phase I

Drill, install, develop, and test three water wells and two permanent pumping systems, under the Infrastructure Upgrades Phase I contract.

1 - 12 inch x 400 foot water well
1 - 20 inch x 16 inch x 850 foot water well
1 - 20 inch x 16 inch x 12 inch x 1,000 foot water well

Two permanent pumping systems with pitless adaptors were also installed.

Challenging conditions encountered during the drilling consisted of heaving sands, large boulders, and clays. These conditions necessitated sizing down the casings sizes due to casing friction build up.

Client: Joint Base Lewis McCord
Drill Rig: Bucyrus Erie 60-L
Drilling Method: Cable Tool
Duration: 2 years, 3 months
Completed: May 2015

WELL FOR NEW REGIONAL WATER SOURCE AT MCALLISTER WELLFIELD, OLYMPIA, WA
Drill well PW-25 at McAllister Springs and install discharge pipeline

The City of Olympia and the Nisqually Indian Tribe signed an agreement to jointly develop a new regional water source at the McAllister Wellfield.

Holt Services, Inc. was awarded the contract to drill well PW-25 which turned out to be the largest producing well in the wellfield producing 6,900 GPM with a drawdown of only 3 feet.

All drilling was done with a Bucyrus Erie 60-L cable tool drill rig, drilling a 24 inch diameter well to a depth of 430 feet. This drilling method provides excellent formation samples and maintains borehole integrity by casing the borehole as it is advanced.

Our crew installed over one mile of discharge pipe line capable of handling 5,000 GPM for the 24 hour constant rate pumping test.

Client: City of Olympia
Drill Rig: Bucyrus Erie 60-L
Drilling Method: Cable Tool
Duration: 6 months
Completed: March 2013

DRILL AND INSTALL PRODUCTION WATER WELL PW-4, CLARK COUNTY, WA
Drill, install, and develop clean water production well for Clark County PUD

Drill, install and develop production well PW-4 to add to Clark County PUD's existing water supply system.

Used a Bucyrus Erie 60-L cable tool drilling rig to drill and install a 24 inch x 20 inch x 600 foot production water well which produced 3,000 GPM.

Challenging formation to drill consisted of the Troutdale highly cemented conglomerate, boulders, cobbles and clays. A 200 foot filter packed screen assembly was installed in the production aquifer.

Client: Clark County Public Utility District (PUD)
Drill Rig: Bucyrus Erie 60-L
Drilling Method: Cable Tool
Duration: 5 months
Completed: December 2014

INSTALL WATER WELL AND ABANDON WELL AT MILITARY BASE NEAR TACOMA, WA
Two phase water well project for Joint Base Lewis McCord (JBLM)

Phase I: drill, install, develop and test a 1,000 foot water well including the installation of the permanent pump. Well details: 20 in. x 16 in. x 12 in.. Well yield: over 1,000 GPM

Challenging formation conditions of heaving sands, cobbles and boulders necessitated three step-downs in the casing sizes prior to reaching the total depth.

Phase II: safely abandon 22 in. x 18 in. x 1,000 ft. well. Excessive amounts of sealing materials required high pressure pumps to overcome high hydrostatic head pressures.

Client: Joint Base Lewis McCord
Drill Rig: Speed Star-72
Drilling Method: Cable Tool
Duration: 8 months
Completed: October 2015

Contact us to talk with a clean water well specialist about your clean water well needs.

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