In Pacific, black mold most often follows White River flooding that left drywall, insulation and floors wet for days. Removal means drying the house, cutting out soaked porous materials, cleaning and drying the framing, and getting the right city approvals before rebuilding. Call the number on this page to be connected with a local mold remediation company in Pacific.

Pacific is a small city of about 7,200 people on the lower White River, also called the Stuck River, between Auburn and Sumner and about 25 miles from Seattle. It is mostly in King County with a piece in Pierce. The river has flooded the town repeatedly. Record November rains in 2006 pushed it over its banks along Pacific City Park, creating a temporary 25-acre lake. On Jan. 8, 2009, water releases from Mud Mountain Dam caused rapid flooding with almost no warning. Early on Dec. 16, 2025, a White River levee breached and flooded a large part of the city; police and Valley Regional Fire ordered a Level 3 "Go Now" evacuation, more than 200 homes were affected and over 600 people were displaced.
What to do now
- Assume growth if things stayed wet. EPA says a flooded home that couldn't be dried within 24 to 48 hours should be treated as moldy.
- Protect yourself. Wear at least an N-95 respirator, gloves and eye protection, and keep children out of cleanup, per EPA.
- Document everything. Photograph water lines and damaged items before they go to the curb.
- Get wet materials out. Soaked carpet, pad, drywall and insulation rarely dry in time.
- Talk to the city before rebuilding. Pacific says flood repairs need building permits and/or floodplain approvals.
- Call your insurer. Homeowners insurance doesn't cover floods; flood coverage is separate.

What you see and what it usually means
| What you see | Likely cause |
|---|---|
| Dark growth just above or below a water line on walls | Floodwater wicking up drywall |
| Black spots on the back of baseboards and cabinet toe kicks | Water trapped behind trim after the flood receded |
| Musty smell weeks after cleanup | Wet insulation or framing still inside the walls |
| Buckled or soft flooring with dark edges | Subfloor that never dried |
| Spots on window frames in winter | Ordinary condensation, separate from the flood |
Cost factors
Angi's Seattle cost guide puts a typical remediation job at $1,008 to $2,967, but flood jobs often run larger, with whole-house work at $8,275 to $24,800. The amount of material removed, drying time, containment and rebuilding drive the price. Check that the company is registered with Washington L&I as a construction contractor on L&I's Verify tool; the state has no mold license.
Black Mold Removal questions in Pacific
Floodwater got into my house. Should I assume black mold?
Do I need a permit to replace drywall after black mold is removed?
Will homeowners insurance pay for black mold removal?
Can my family stay home while black mold is being removed?
More mold services in Pacific
Black Mold Removal nearby
Sources
- Wikipedia: Pacific, Washington
- City of Pacific: 2025 Flood
- Fox Weather: Over 200 homes affected by levee breach in Washington town
- City of Pacific: Building Inspector/Code Enforcement job description (pdf)
- EPA: Homeowner's and Renter's Guide to Mold Cleanup After Disasters (pdf)
- Angi: How Much Does Mold Remediation Cost in Seattle, WA?
- L&I: Verify a Contractor, Tradesperson or Business
- EPA: Mold Cleanup in Your Home
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