California Water Well Drilling Contractors

Find qualified Water Well Drilling contractors in California using our contractor lookup tool. Learn more about NGWA Contractor Certifications here.

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Landino Drilling Co

Contractors Company
PO Box 419
Davenport, CA 95017-0419
(831) 426-4129

Rumsey-Lang Well Drilling & Pumps

Contractors Company
PO Box 1021
Shingle Springs, CA 95682
(530) 677-5361

Robert Alexander

Contractor Individual
911 West Hwy 246
Buellton, CA 93427

Water Tech Systems

Contractors Company
PO Box 446
San Ramon, CA 94583-0446
(925) 820-6875

Confluence Technical Services Inc

Contractors Company
774 Rubier Way
Rio Vista, CA 94571
(707) 639-7709

Martell Water Systems Inc

Contractors Company
1818 Loveridge Rd
Pittsburg, CA 94565-4111
United States
(800) 498-4282

Cascade Well & Pump Co

Contractors Company
1200 Via Regina
Santa Barbara, CA 93111-1358
(805) 965-7246

Edwin Brown

Contractor Individual
PO Box 50010
Santa Barbara, CA 93150-0010

Geocentric Drilling Inc

Contractors Company
1980 S River Rd Ste E
West Sacramento, CA 95691
(916) 304-2665

Boston Henry Company Inc

Contractors Company
33605 Agua Dulce Canyon Rd
Agua Dulce, CA 91390-4551
United States
(661) 268-1731

Ryan Lea

Contractor Individual
2100 Goodyear Road
Benicia, CA 94510
(925) 313-5800

Wildheron Drilling

Contractors Company
6558 Lonetree Boulevard Suite #101
Rocklin, CA 95765
(916) 625-3807

HPC Inc aka WellJet

Contractors Company
413 Dawson Dr
Camarillo, CA 93012-8009
(805) 383-2868

Worshams Pump Co

Contractors Company
4844 Cole Rd
Vacaville, CA 95688-9618

Clayton Bartholomew

Contractor Individual
506 De Carlo Ave
Richmond, CA 94801
(510) 357-3677

Frequently Asked Questions

What is a drilled well?

A drilled well consists of a hole bored (a borehole) into the ground, with the upper part or the entire depth of the well being lined with casing. Drilling is most typically conducted with a portable drilling machine brought to the site to construct the borehole. Various methods are used to advance the borehole to the necessary depth, and to remove formation material loosened and suspended by the drilling bit and fluid circulation or bailing system.

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Does water well drilling require a license?

In the United States, most states require licensing of water well contractors, and in most cases, this means that licensed contractors have passed tests and met certain professional requirements to obtain their license. Canadian provinces, Australian states, and New Zealand also use qualification-based licensing. To find out if a contractor is licensed, contact your state government (licensing is often handled by the Department of Natural Resources or Department of Health).

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What is a Certified Well Driller (CWD)?

The Certified Well Driller (CWD) designation from the National Ground Water Association (NGWA) encompasses general industry knowledge as well as practice and expertise in at least one well drilling method.

To achieve NGWA certification, contractors must pass exams testing their technical knowledge, and they must have at least twenty-four consecutive months of full-time groundwater contracting experience. They maintain their certification by obtaining continuing education credits annually.

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California Groundwater and Water Well Statistics

Few states can accurately or confidentially determine how many residential wells are in place. For each region, the American Housing Survey by the U.S. Census provides regional data.

California is found in the West, along with these other states: Alaska, Hawaii, Washington, Oregon, California, Idaho, Utah, Nevada, Arizona, New Mexico, Colorado, Wyoming, and Montana.

The last American Housing Survey Census indicates this region had 1,540,0002 households served by residential wells, with an average of 2.973 persons per household. The USGS estimates the population of self-supplied water supply users in California to be 1,440,000 for which groundwater is 85% of their water source.

  • 2,081 community water systems use groundwater for 7,286,000 people
  • 1,393 non-community, non-transient water systems use groundwater for 371,400 people
  • 2,874 non-community, transient water systems use groundwater for 603,200 people
  • 59,500 irrigation wells used serving 23,600 farms and 3,860,000 acres

Water Well Drilling Articles and Resources

Mud Rotary Drilling Method: What You Need to Know By Gary L. Hix, R.G., CWD/PI There are many different ways to drill a domestic water well. One is what we call the “mud rotary” method. Whether or not this is the desired and/or best method for drilling your well is something more fully explained in this brief summary. Air and water are both fluids […]