At 482 feet, Hermiston sits low in the Columbia Basin, about seven miles south of the Columbia River and near the slack water of Lake Wallula behind McNary Dam. The Umatilla River passes just west of town on its last few miles to the Columbia, and in February 2020, when record flooding rolled down from the Blue Mountains, the river spread across Riverfront Park for the second year running. Farther upstream, about 50 homes in Echo were damaged and properties near Stanfield took water.
Most Hermiston water damage is less dramatic than that, but it still needs fast attention. Call The Restoration Job at (888) 317-9980 at any hour; the call is free, and we'll connect you with an independent restoration provider that serves the Hermiston area. The provider handles the assessment and work with you directly.
How the call works: when you call (888) 317-9980, The Restoration Job connects you with an independent restoration provider that serves Hermiston. That provider inspects the damage, explains the scope and quotes the work. The Restoration Job doesn't perform restoration itself. Read our referral disclosure.
The Umatilla's Final Miles and Riverfront Park
By the time the Umatilla reaches Hermiston, around river mile 9, it has collected water from the North and South Forks, Meacham, McKay, Birch and Butter creeks. A big rain-on-snow event in the Blue Mountains can push all of that downstream at once, and the 2020 flood showed how quickly the lower river can leave its banks. Riverfront Park, 16 acres of grass along the river, is the most visible place where that happens.
If your home or business is near the river or a low drainage, check the address on the FEMA Flood Map Service Center and think about separate flood coverage, since homeowners policies do not pay for surface flooding. River water inside a building means flood cleanup: mud removal, cutting out wet drywall and insulation, and disinfecting before drying.
Triple-Digit Summers and Cooling-System Leaks
Hermiston hit 118 degrees on June 29, 2021, and the record high here is 119. Long, hot summers mean air conditioners and evaporative coolers work hard for months. That brings a steady trickle of leaks that start small:
- Clogged condensate drain lines that overflow into a ceiling or closet.
- Rusted drain pans under attic air handlers.
- Evaporative cooler supply lines and float valves that stick open and flood a roof or wall.
- Ice-maker and refrigerator lines that split behind the appliance.
Most of these are clean-water losses. Caught within a day or two, they can usually be dried in place.
Cold Snaps in a Low-Elevation Town
Low elevation does not mean mild winters every year. The record low is 16 below zero, set in December, and a hard freeze can linger for several days once it arrives. Pipes in crawl spaces, garages and outbuildings, and outdoor faucets still connected to hoses, are the usual casualties. Drain irrigation lines and hose bibs in fall, insulate exposed piping, and keep heat on in vacant rentals. When a frozen line splits, shut off the main valve first and then call for water extraction before water spreads under flooring.
Irrigation Country and Moisture Around the Foundation
Irrigated farming here dates to 1908, when the Bureau of Reclamation completed Cold Springs Reservoir for the Umatilla Basin Project, and lawns and gardens across town are watered heavily through a dry summer that averages under nine inches of precipitation for the whole year. Sprinkler heads aimed at siding, broken lines next to the foundation and downspouts that drain toward the house can all keep crawl spaces damp. That steady moisture, not humidity in the air, is what usually feeds mold in local homes. Point sprinklers away from walls, check crawl spaces once a season, and investigate any musty odor promptly.
Working With a Provider After a Loss
On the first call, describe where the water came from and how long it has been there, since a clean supply line leak and floodwater call for different handling. Once on site, the provider typically maps the wet area with moisture meters, removes what cannot be saved, and sets dehumidifiers and air movers. Keep photos, receipts and a list of discarded items for your insurer. Upriver in Pendleton, the same 2020 storm brought far worse flooding, which is a good reminder to keep a plan ready even in dry years.
Where Callers in the Hermiston Area Are
The same line also serves nearby communities such as:
Hermiston Water Damage Questions
Did the 2020 Umatilla River flood affect Hermiston?
Yes, though less severely than towns upstream. The river flooded Riverfront Park west of town for the second consecutive year, while Echo saw roughly 50 damaged homes and properties near Stanfield were also hit. Homes near the river or low ground in the Hermiston area should check FEMA flood maps and consider flood insurance, which is separate from a homeowners policy.
My evaporative cooler leaked through the ceiling. Is that a big job?
It depends on how long it ran and where the water went. A short leak onto drywall can often be dried in place after the cooler is repaired. Water that soaked attic insulation or ran inside walls for days may require removing and replacing materials. Turn off the cooler's water supply, move belongings, and call (888) 317-9980 to reach an independent provider for an inspection.
How do I keep my crawl space dry in summer?
Most crawl space moisture here comes from outside water rather than humid air. Aim sprinklers away from the foundation, extend downspouts, and make sure soil slopes away from the house. Check for leaking supply lines under the floor at least once a season. If insulation is sagging or wet, or you notice a musty smell inside, have the space inspected before mold has time to establish.