Portland water extraction

Most Portland extraction jobs start with one of four sources. Plumbing failures, such as supply lines, water heaters and washing machines, happen year-round. Groundwater seeps into older basements after weeks of rain in the wettest months. Surface water from overflowing gutters and window wells comes in during heavy downpours. And in parts of the city, basement floor drains back up when the sewer system is stressed by a big storm.

Portland's rain is persistent rather than dramatic: around 37 inches a year at the airport and about 44 downtown, spread over roughly 157 days. ^[1] Atmospheric rivers break that pattern, dropping several inches in a day or two and overwhelming gutters and drains.

The source matters for extraction. Clean water from a pipe is extracted and dried. Water from a floor drain is treated as contaminated, and porous materials it soaked usually come out. See our main water extraction page for the general process.

Many early twentieth-century Portland houses have poured concrete basements built for storage and laundry and finished decades later. Water that comes through the wall gets behind carpet, framing and drywall. Extraction in these basements often means pulling wet pad, cutting drywall above the wet line and removing insulation so the concrete behind it can dry.

Basements also hold belongings: boxes, photos, furniture. Moving dry items upstairs as soon as it is safe, and photographing what was damaged, helps both recovery and insurance.

Parts of Portland are served by older combined sewers that carry stormwater and sewage together. The city's Big Pipe tunnels reduce overflows to the rivers, but a home's own lateral can still block from roots or be overwhelmed. ^[5] If water rises through a basement floor drain during heavy rain, stop using water, treat it as contaminated and report widespread problems to Environmental Services. Our Portland area page covers this in more detail.

The worst Portland extraction nights usually come during an atmospheric river: a long plume of subtropical moisture that parks over the region and drops several inches of rain in a day or two. Gutters overflow under the city's big trees, window wells fill, storm drains back up at low intersections and older basements start seeping all at once. Contractors can be stretched thin on those nights, which is one more reason to know your shutoff, clear your gutters before the storm and keep belongings off basement floors.

If water is rising during a storm, redirect downspouts away from the foundation if you can do it safely, and keep away from any basement water that may reach the panel or furnace.

Much of Portland's newer housing is attached. A leak upstairs often means water in the unit below, so extraction may happen in two homes at once. Tell your neighbours and the building manager or HOA right away. Renters should notify their landlord in writing as well as by phone and photograph the damage; belongings are covered only by renters insurance.

Extraction itself is the same whoever owns the walls: stop the water, get it out quickly and start drying with readings.

Oregon's Construction Contractors Board licenses residential contractors, and its online search shows whether a license is active and any complaints on file. It takes a minute while you wait for the crew.