Dealing with water, flood, fire or smoke damage in Hermiston

Hermiston lies at about 482 feet, roughly seven miles south of the Columbia River near McNary Dam and Lake Wallula. The Umatilla River passes through on its last few miles to the Columbia, and Riverfront Park lines 16 acres of its bank. Irrigation from Cold Springs Reservoir, finished in 1908, turned the surrounding sagebrush into farmland, and the World War II Army depot helped multiply the town’s population in the 1940s.

Fire & Water Energy is a referral service whose phone line points Columbia Basin callers toward outside firms. By calling (866) 937-3230, you let us try to locate an independent restoration contractor that covers Hermiston. Availability varies with the providers active in Umatilla County. Our referral disclosure and the how it works page describe exactly where our part ends and the contractor’s begins.

Steppe climate extremes and the lower Umatilla River

Hermiston has a cold semi-arid steppe climate with about 8.6 inches of precipitation a year. Summers are hot and dry; the town reached 118°F on June 29, 2021. Winters are colder than many expect, with several light snowstorms a year and a record low of −16°F.

The Umatilla River drains about 2,450 square miles of the Blue Mountains and the plateau below before reaching Hermiston around river mile 9. FEMA records show Umatilla County in declarations for severe winter storms in 2004 (DR-1510), severe storms with flooding, landslides and mudslides in both 2019 (DR-4452) and 2020 (DR-4519), and wildfires in 2025 (DR-4854).

Water damage repair when freezes and heat stress plumbing

Sub-zero cold snaps can freeze and split pipes in crawlspaces, garages, manufactured-home skirting and exterior walls, and the leak often shows up only after a thaw. In summer, cooling systems run nearly nonstop, so a blocked condensate drain, failed evaporative cooler line or burst water heater are frequent sources of soaked floors. Irrigation lines and sprinklers placed too close to the foundation can also push water into crawlspaces.

A contractor doing water damage restoration in Hermiston will usually stop the leak, remove standing water, pull out materials that cannot be dried, and run dehumidifiers and air movers until readings return to normal. Our burst pipe water damage page covers freeze breaks, while water extraction explains removal of standing water.

Federal disaster declarations that included Umatilla County

FEMA records show Umatilla County was included in 4 major disaster declarations for weather or fire events from 2000 through 2026 (2 flood, 1 fire, 1 severe storm, by FEMA incident type). Declarations are made at the county level, so they do not mean every neighborhood in Hermiston was affected. The most recent:

• 2025 – Wildfires (DR-4854)
• 2020 – Severe Storms, Flooding, Landslides, and Mudslides (DR-4519)
• 2019 – Severe Storms, Flooding, Landslides, and Mudslides (DR-4452)
• 2004 – Severe Winter Storms (DR-1510)

Source: OpenFEMA Disaster Declarations Summaries, retrieved 2026-10-10. Counts include major disaster (DR) declarations with hurricane, flood, severe storm, tropical storm, fire, tornado, coastal storm, winter or ice storm, mudslide and dam/levee incident types.

Fire, smoke and dry-season risk in the Columbia Basin

Dry grass and wind make summer and early fall the riskiest time for fires, and Umatilla County was part of a 2025 FEMA wildfire declaration. Smoke from fires on the surrounding rangeland or farther away can seep into homes and leave odor in carpets, drapes and ductwork. Inside the home, cooking, heating equipment and electrical faults are common fire starters.

Fire restoration contractors typically secure the building, remove burned materials, clean soot from each surface with an appropriate method, and use air scrubbers and deodorizers to address smell. See fire damage restoration, and for persistent haze residue, smoke damage cleanup.

After the 2019 and 2020 flood declarations: storm and flood cleanup

Despite the low annual rainfall, Umatilla County landed in flood-related federal declarations two years running, in 2019 and 2020. The river collects water from a large mountain basin upstream, so heavy rain or melt far from town can raise it here, and properties near the river or low ground are the most exposed. Summer thunderstorms can also dump intense rain that dry, hard ground does not absorb quickly.

Floodwater should be treated as contaminated, so saturated carpet, insulation and drywall usually come out before cleaning and drying begin. Our flood cleanup and storm water damage restoration pages walk through the process.

Mold can still grow in a desert town

Outdoor air is dry, but a hidden leak, swamp cooler moisture or a crawlspace that took on floodwater can keep materials wet long enough for mold. Growth often appears behind baseboards, under sinks and on the underside of subfloors.

EPA guidance indicates that patches under about 10 square feet can often be cleaned by a homeowner. Larger growth, mold inside HVAC equipment, or contamination from floodwater or sewage calls for a professional using containment and HEPA filtration; see mold remediation.

Practical steps for Hermiston residents in an emergency

• Call 911 for fire, injuries, a gas odor or downed lines, and evacuate when officials say so during floods or wildfires.
• Shut off the water main for plumbing leaks, and avoid standing water near outlets or appliances.
• Sign up for Umatilla County notifications by looking up your ZIP code at OR-Alert.
• Document all damage with photos before anything is removed. Coverage depends on your policy, and an early call to your insurer or agent can save confusion later.

Neighborhoods and nearby communities

Nearby communities with their own pages (straight-line distance from Hermiston):

• Kennewick, WA · 27 mi
• Pendleton · 27 mi
• Pasco, WA · 29 mi
• Richland, WA · 31 mi
• West Richland, WA · 32 mi
• Sunnyside, WA · 48 mi

Restoration guides

• Burst Pipe Water Damage
• Water Extraction
• Flood Cleanup
• Storm Water Damage Restoration
• Fire Damage Restoration
• Mold Remediation

Local resources for Hermiston residents

• OR-Alert (Oregon emergency alerts)

Sources

• Wikipedia: Hermiston, Oregon
• Wikipedia: Umatilla River
• OR-Alert

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