Shadrock Underground

Sanitation System/Side Sewers · Tacoma, WA · License #SHADRU*804QO

Registration expired per WA L&I as of Oct 23, 2022.

What do these mean?

Shadrock Underground is one of 7 Sanitation System/Side Sewers contractors registered in Tacoma, registered with WA L&I since 2020. Principals on record since 2020.

How confident can you be in Shadrock Underground?

Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Oct 23, 2022.

Source:License facts on this pageVerify at WA L&I

Are they who they say they are?

Not yet verified — Shadrock Underground hasn't claimed this listing. Own this business? Claim it free.

Do other pros stand behind them?

No endorsements yet from other licensed contractors in Tacoma.

Do they have jobs on record?

Not yet measured — Shadrock Underground hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.

Subser doesn't do star ratings or reviews — just verified records. What do these mean?

License facts

License type
CONSTRUCTION CONTRACTOR
Effective date
Oct 23, 2020
Expiration date
Oct 23, 2022
Suspend date
Sep 4, 2021
UBI
604650930
Business type
Individual
Phone
(253) 754-0713
Location
Tacoma, WA 98444

Source: WA L&I contractor registration — checked Nov 12, 2026. Applies to every row above.

Registration lapsed Oct 2022 per WA L&I records.

Is this your business? Claim it free to verify ownership — takes about two minutes.

Claim this free listing

Bond & insurance on file

What the bond and insurance requirements mean for homeowners

A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (general contractors file $30,000).

The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.

Principals

NameStart date
Ryan Allen ShadduckOct 23, 2020
What is a Sanitation System/Side Sewers contractor licensed to do in Washington?

Septic and side sewer contractors install and repair on-site sewage systems and the side sewer lines that connect buildings to a main. Typical jobs include septic tank and drainfield installation, sewer line replacement, and repairs found during inspections. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 7 Sanitation System/Side Sewers contractors registered in Tacoma.

Looking for reviews of Shadrock Underground?

Subser doesn't have reviews or star ratings. This page shows Shadrock Underground's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.

Own Shadrock Underground? Claim the listing free. Worked with Shadrock Underground? Endorse them from your own listing.

Other Sanitation System/Side Sewers contractors in Tacoma, WA

Browse the directory

Built from Washington State L&I public records, updated Nov 12, 2026. Subser doesn't do star ratings or reviews — just verified records.