Verified license

Stillwater LLC

Richland, WA · Benton CountyWell drilling

Call (509) 542-8884
Website
License status
Active
checked September 29, 2026
License number
3301
Washington record
Services
3
Well Abandonment and more
Counties served
5
on the state record

About Stillwater LLC

Stillwater LLC is a well drilling contractor based in Richland, WA (Benton County). The Washington licensing program lists license 3301 as active, and we last checked the record on September 29, 2026.

The state record covers well abandonment, well drilling and well repair. It lists 5 counties where the business works, including Franklin County, Benton County and Walla Walla County.

This profile is built from public state license records checked on September 29, 2026. Well Water Insider does not rate or endorse contractors. Own this business? Claim the profile to add photos, hours and a description.

License record

Verified against state records
License number
3301
License type
Well drilling
Status
Active
Expires
February 1, 2028
Last verified
September 29, 2026

Check this license yourself on the official Washington lookup.

What the state record says

Holds an active Washington water well operator license from the Department of Ecology (license 3301), current through 2028-02-01. Works for Stillwater LLC. The Ecology license covers constructing, altering and decommissioning water wells under chapter 173-160 WAC; pump installation is not licensed by the state. Filed 70 water well reports with Ecology since 2016, most recently in May 2025, mostly in Franklin, Benton and Walla Walla counties. Also filed 5 reports for other well types (monitoring, geotechnical, decommissioning).

Services

What the Washington record says Stillwater LLC is licensed or registered to do.

Well Abandonment

Sealing an unused well to state standards so it cannot carry surface water down into the aquifer.

Well Drilling

Drilling a new private well, setting the casing and grouting it the way state rules require.

Well Repair

Fixing casings, caps, pitless adapters and other parts of an existing well.

Service area

Based in Benton County, Washington. The state record lists 5 counties.

Approximate location (Benton County)Counties on the state record

  • Franklin County
  • Benton County
  • Walla Walla County
  • Adams County
  • Yakima County

Well water in Benton County

Useful context before you call a contractor here.

15%of households in Benton County drink from a private well (est.)
Not requiredwater test when a home with a well is sold in Washington
Open the Benton County well guide

Typical costs for these services

National ranges to help you read a quote. They are not prices from Stillwater LLC; ask for a written estimate.

New well drilled$5,500 to $25,000about $25 to $65 per foot
Shock chlorination$80 to $300or about $20 as a DIY job

Before you hire

  1. 1

    Confirm the license

    Look up license 3301 on the Washington state lookup and make sure it is active for the work you need. Open the Washington lookup.

  2. 2

    Get a written estimate

    Ask for the scope, parts, depth or pump size, permit fees and warranty in writing. Compare two or three quotes for big jobs.

  3. 3

    Ask about permits and the well log

    New wells and many repairs are reported to the state. Ask who files the paperwork and for a copy of the well log.

  4. 4

    Test the water after the work

    Any work on a well can disturb bacteria. Test for coliform bacteria once the job is done.

Questions about Stillwater LLC

Is Stillwater LLC licensed?

Yes. The Washington record shows license 3301 (well drilling) with the status "active", last checked on September 29, 2026. You can confirm it on the state lookup.

What services does Stillwater LLC offer?

The state record lists well abandonment, well drilling and well repair. Call to confirm they take on your type of job.

What areas does Stillwater LLC serve?

The business is based in Benton County (Richland, WA). The state record lists 5 counties, including Franklin County, Benton County, Walla Walla County, Adams County and Yakima County.

How do I contact Stillwater LLC?

Call (509) 542-8884, visit their website and email them. The address on the state record is PO BOX 6, Richland, WA 99352.

Other licensed contractors near Richland