Washington Well Water Testing and Treatment Contractors

Find qualified Well Water Testing and Treatment contractors in Washington using our contractor lookup tool. Learn more about NGWA Contractor Certifications here.

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Oasis Drilling

Contractors Company
2017 S 16th Ave
Union Gap, WA 98903-1213
(509) 453-4406

Crabtree Drilling Company

Contractors Company
33349 Eglon Rd NE
Kingston, WA 98346-8664
(360) 638-2317

Davis Pumps Inc

Contractors Company
340 NE Davis Farm Rd
Belfair, WA 98528
United States
(360) 329-2699

Gresham Pump & Drilling Inc

Contractors Company
PO Box 1600
Poulsbo, WA 98370-0195
(360) 779-9323

Dahlman Pump & Well Drilling Inc

Contractors Company
PO Box 422
Burlington, WA 98233-0422
(360) 757-6666

Tacoma Pump & Drilling Company Inc

Contractors Company
30316 Mountain Hwy E
Graham, WA 98338-9640
(253) 847-9352

Aquatech Well Drilling & Pumps Inc

Contractors Company
2675 Butler Creek Rd
Sedro Woolley, WA 98284
United States
(360) 724-6005

RH Drilling & Service Inc

Contractors Company
2550 Caraway Ln
Coupeville, WA 98239-9710
(206) 772-5771

B & C Well Drilling & Pump Service Inc

Contractors Company
888 E Kelly Rd
Bellingham, WA 98226-7460
(360) 398-7081

M Sawyer Drilling & Pump Service Inc

Contractors Company
77 Ej Young Rd
Olga, WA 98279-9343
United States
(360) 376-5280

Arcadia Drilling Inc

Contractors Company
PO Box 1790 172 SE Walker Park Rd
Shelton, WA 98584-5012
(360) 426-3395

Oasis Well Drilling

Contractors Company
164 Spring Rd
Port Angeles, WA 98362
(360) 683-4773

Halme Electric & Pump

Contractors Company
PO Box 1049
Davenport, WA 99122-1049
(509) 725-3500

Moerke & Sons Pump & Drilling

Contractors Company
1162 NW State Ave
Chehalis, WA 98532-1829
United States
(360) 748-3805

L & S Drilling Consultants LLC

Contractors Company
17207 S Clodfelter Rd
Kennewick, WA 99338-9326
(509) 628-3210

Frequently Asked Questions

When should I have my well water tested?

The National Ground Water Association (NGWA) recommends well owners test their water at least annually for bacteria, nitrates, and any contaminants of local concern. More frequent testing should be considered if:

  • There is a change in the taste, odor, or appearance of the well water, or if a problem occurs such as a broken well cap, inundation by floodwaters, or a new contamination source
  • The well has a history of bacterial contamination
  • The septic system has recently malfunctioned
  • Family members or house guests have recurrent incidents of gastrointestinal illness
  • An infant is living in the home, or
  • To monitor the efficiency and performance of home water treatment equipment.

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What can impact groundwater quality?

Forty-seven percent of the United States depend on groundwater for their basic drinking water supply. Having a basic understanding about groundwater quality will help ensure that your well is supplying potable water for your household.

Along with human activities, water quality is affected by a combination of natural processes. Most relate to chemical compositions underground. However, other factors such as biological, physical, and radiological conditions can affect water quality as well.

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How is a well disinfected?

Properly constructed and maintained water well systems are designed to keep microorganisms such as bacteria, viruses, and protozoa from getting inside the well system and into the water. When a water test indicates the presence of microorganisms in a well, disinfection of the well system is recommended along with some level of inspection.

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Washington 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.

Washington 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 2.583 persons per household. The USGS estimates the population of self-supplied water supply users in Washington to be 1,020,000, with 100% of their water supply from groundwater.

  • 2,088 community water systems use groundwater for 3,052,800 people
  • 344 non-community, non-transient water systems use groundwater for 82,800 people
  • 1,773 non-community, transient water systems use groundwater for 316,100 people
  • 6,800 irrigation wells used serving 4,200 farms and 517,000 acres

 

Well Water Testing and Treatment Articles and Resources

Does My Water Well Need Treatment? By Gary L. Hix, R.G., CWD/PI Have you ever asked yourself: “Does my well water need treatment?” The question is not one you can answer if you have not had your water tested recently. You should ask yourself instead: “When was the last time I had my water tested?” If the answer to this question […]

PFAS and Private Well Owners: What You Need to Know NGWA published PFAS and Private Well Owners: What You Need to Know, a two-page fact sheet for home owners concerned about PFAS. Written in easy-to-understand language by groundwater professionals, it explains what PFAS are, how to test wells for PFAS, treatment options, and more.