Water damage restoration in Rochester, WA often follows the rivers. Rochester and Grand Mound sit in the wide, flat Chehalis River valley in southwest Thurston County, near where the Black River and Scatter Creek come in. Through our referral line (opening soon), you can be connected with an independent restoration company that works in the 98579 area for river flooding, groundwater and everyday leaks.
The Chehalis and Black rivers
Thurston County names the Chehalis and the Black among the five rivers in the county most prone to significant flooding. Thurston Regional Planning Council points out that the Chehalis has a very large watershed reaching outside the county, so heavy rain upstream can bring flooding here even when local rain has eased. During major floods, Thurston County Emergency Management has issued evacuation orders for the Chehalis River in Thurston County.
After a river flood, cleanup is treated as contaminated water: mud and silt removal, discarding soaked porous materials and cleaning before drying. See storm and flood water cleanup.
Groundwater on the prairie
Much of the land around Rochester and Grand Mound is flat prairie. In those areas, Thurston Regional Planning Council says groundwater can rise after weeks of rain and stand for months because it has nowhere to drain. That kind of water usually turns up under houses rather than over floors, and sandbags do not stop it. A wet crawl space is the most common sign. See crawl space water damage.
West Thurston Regional Fire Authority
Fire and emergency service here comes from West Thurston Regional Fire Authority, created when Thurston County Fire Districts 1 and 11 combined. Its 158-square-mile response area runs about 12 miles along Interstate 5 from the Tumwater city limits to the Lewis County line, with stations in Grand Mound, Rochester, Littlerock and other communities.
Common Rochester and Grand Mound jobs
- River flood cleanup after atmospheric river storms.
- Standing groundwater in crawl spaces.
- Septic backups when drainfields are flooded.
- Well and pressure tank leaks.
- Frozen pipes in outbuildings and crawl spaces.
Flood insurance timing
Standard homeowners policies usually exclude flood. Flood insurance through the National Flood Insurance Program typically has a 30-day waiting period, so it needs to be in place before the wet season. Our Washington insurance guide explains more.
Book help in Rochester
Once officials say it is safe to return, email info@olympiawaterdamagewa.com while our phone line is being set up. Mention whether the water came from the river, from groundwater or from inside the home.
Common questions
Does the Chehalis River flood near Rochester?
Yes. Thurston County lists the Chehalis as one of its five rivers most prone to significant flooding, and has issued evacuation orders for the Chehalis in Thurston County during major floods. Its large watershed means heavy rain upstream, outside the county, can raise it here.
Who provides fire service in Rochester and Grand Mound?
West Thurston Regional Fire Authority, formed when Thurston County Fire Districts 1 and 11 combined. It covers about 158 square miles from the Tumwater city limits along Interstate 5 to the Lewis County line, with stations including Grand Mound, Rochester and Littlerock.
What should I do before a Chehalis River flood?
Sign up for Thurston County community alerts, know your evacuation route, move valuables, documents and chemicals up high, and check your flood insurance well ahead of the season, since new NFIP policies usually take 30 days to start. Follow official evacuation orders.
Sources
Facts on this page come from these public sources. Rules and figures change, so check the source before you rely on them.