9421 18TH AVE W LILYS COURT 2025-07-29

k • Soil survey 12 1 • • water capacity is low. Effective rooting depth is 20 to 40 thosee on s saouth- and de inouthcanopaciing slop- g brushen inches. Runoff is rapid, and the hazard of water erosion openings of is high. A seasonal perched water table is at a depth of plants, if not controlled, can delay the• istableh restricted byt a 18 are: 36 inches January to March. rings or seep Cem n ed pan in the Alderwood lings. Because the rooting e•il, trees are subjct to are:s are common. Windt •w. T Everett soil is very deep and so ewhat The m.' limitations of the Iderwood soil for septic • exce•. ively drained. It formed in glace. outwash. b • t. the surfaceisve layer,d whergrayish •'ownollth of sandy slope andnk ra se.fields and gmesites are per, ed water table.steepness Effluent from about inches,: is very dark gravelly •ws aerall above the pan and can loam. T`le subsoil is dark brown ve gravelly sandy loam absorption fields Y about 1 inches thick. The upper p.rt of the substratum seep at the bottom • slopes. Drainage is needed if is brown,ery gravelly loamy sand :bout 5 inches thick. buildings with base, en and crawl spaces are The lower mart to a depth of 60 in hes or more is dark constr maids li Nations of the readily t sohen saturated. l for septic tankbrown extremely gravelly sand. • ThePermeability of the Everett so' is rapid. Available water absorption fe ds are steepness • slope and seepage. If capacity is to . Effective rootin: depth is 60 inches or the dense !'of housing is moderate • high, community more. Runoff I rapid, and th- azard of water erosion is swewage s ses sa are neededsult of to seepage rev fr•contamination on of te moderate. r dP This unit is used mainly a•. woodland and for wildlife sew a disposal systems. Road cuts tend o slough habitat. It is also sed for ban development. reu/di; rToly. protect the soils in this unit from erosion during • Douglas-fir is th main oodland species on the Alderwood soil. On the b.-is of a 100-year site curve, construction,o ff should be controlled.areas need to be seeded and the mean site inde is 14'. On the basis of a 50-year site curve, the mean site index is 108.The mean annual This map unit is in capability subclass Vile. increment at culmina'o (CMAI) for Douglas-fir at age 65 5—Alderwood-Urban land complex, 2 to 8 percent Douglas-fir is feet per a• e. slopes. This map unit is on till plains. Areas are irregular is the m. woodland species on the in shape and are 100 to 1,000 acres in size. The native • Everett soil. On the b. i of a 100-year site curve, the mean site index is 14 . •'n the basis of a 50-year site vegetation is mainly conifers. Elevation is 50 to 550 feet.curve, the mean site nde is 111. The mean annual The average annual precipitation is about 40 inches, the increment at culmin- ion (r average annual air temperature is about 50 degrees F,MAI) for Douglas-fir at age 65 the and the average frost-free season is 170 to 190 days. is 146 cubicfeet This unit is about 60 percent Alderwood gravelly sandy Among trees acre..f limite. extent on this unit are loam and about 25 percent Urban land. The components • western hemlock, esters re n cedar, and red alder.Among the commun forest un•erstory plants are salal, of this unit are so intricately intermingled that it was not practical to map them separately at scale used. evergreen huckle b erry, bracke fern, red huckleberry, p Included in this unit areeseparately small at the of McKennae and common rose, a • Oregon-gra•e. Norma soils and Terric Medisaprists in depressional The main limit.tion for the ha esting of timber is areas and drainageways on plains. Also included are steepness of sl••e. Slope restric the use of wheeled small areas of soils that are very shallow over a and tracked eq pment in skidding operations; cable • yarding system generally are safe and disturb the soils haharilsdpan; terra ll areas of eas outwash Evertt, Indianola,n soils R a have nar less. Harvestin; systems that lift log entirely off the ground reduce the disturbance of th:, protective layer of upa stony about d5 ould ert surface f rfa total layer. Inc n ge.hided areas make duff. Logging roads require suitable surfa ing for year-round The Alderwood soil is moderately deep over a hardpan use. Rock for road construction is not -adily available and'is moderately ell la ai is very formed drip glh aciaown l till. on this unit. ' stablishing plant cover on teep road cut Typically, surface layer • and fill slop:s reduces erosion. Steep ya ding paths, skid gravelly sandy loam about 7 inches thick. The upper part trails, and fi ebreaks are subject to rilling :nd gullying of the subsoil y is dark r yellam about brown ande s dark k. The brown protectednles adequate water bars are provided gr they are very lower is olive brown very gravelly sandy loam about ny oaat cover. 5 inches thick. A weakly cemented hardpan is at a depth Beadles mortality is the main limitation fo the productio of timber. Reforestation can be ak complished of about 35 inches. Depth to the hardpan ranges from by planti g Douglas-fir seedlings. If seed tree are 20 to 40 inches. • present, atural reforestation of cutover areas ay red Permeability of the Alderwood soil is moderately rapid alder oc urs periodically. The high temperature -nd low above the hardpan and very slow through it. Available moistur content of the Everett soil during the g swing water capacity is low. Effective rooting depth is 20 to 40 seaso ause high mortality of seedlings, especi. ly inches. Runoff is slow, and the hazard of water erosion • 6