Soggy lawn spot in Olalla, WA

The likely causes here

The most common cause we find in Olalla is a natural seep or perched water. Common on bluff and hillside lots. On waterfront on Colvos Passage with outwash that drains and hides leaks underneath, that's where we look first.

We also check a failed drain line, because in Olalla it explains a real share of soggy lawn spot calls. A crushed downspout or yard drain line discharging into the lawn instead of its outlet.

Finally, a service line leak surfacing downhill. The pressurized line between the meter and the house has failed, and the water has followed the trench or the hardpan to the nearest low spot. Worth five minutes before anyone digs bluff clay on Colvos Passage.

What to check first

Outwash that drains hides the leak; peat in the Olalla Creek valley holds it.

Before we arrive in Olalla, three things you can do: note whether the spot is wet in dry weather or only after rain. Don't dig at the spot. Note whether the spot is downhill of the meter-to-house line's route. None of it requires tools, and all of it helps us correlate faster on pasture parcels off Olalla Valley Road.

The fix in Olalla

Fixing soggy lawn spot here usually ends with underground water leak detection near Al's Grocery: correlate with leak noise correlator, repair, if you want us to on wooded acreage on Banner Road, confirm there is a leak. One crew, one visit, peat in the Olalla Creek valley put back the way it was.

We've handled soggy lawn spot near Fragaria where the cause was 1970s and 80s polyethylene gone brittle, and near Colvos Passage where hardpan on Banner Road was hiding a drain failure. About forty minutes down Highway 16; we schedule Olalla so you aren't waiting a whole day.