Fircrest soil, wetlands, and permits
The USDA describes the Alderwood series as moderately well drained, with a parent material of glacial drift and outwash over dense glaciomarine deposits on glacial drift plains. Its dense layer, which the survey calls the densic contact, sits 50 to 100 centimeters down, and a perched seasonal water table can form above it at times from December through April, 30 to 90 centimeters below the surface. The county soil survey shows which series lies under a given lot, so we check the map for each address.
Fircrest’s wetland chapter regulates excavation, grading, dumping or fill, drainage changes, and any new structure inside a regulated wetland or its buffer, and it does not allow stormwater management facilities in buffers of Category I or II wetlands. Buffer widths follow each wetland’s category and habitat score under the Washington State rating system. The city’s land use element names Leach Creek, and the R-6 zone caps structures at 40 percent of the lot and structures plus other impervious surface at 50 percent, with narrow exceptions.
Nearby, we also build in Tacoma, University Place, Lakewood, and Steilacoom, and we serve the rest of western Washington.