Laserfiche WebLink
Hpowagiaoull ml�w overly. owns", <br />Description <br />Hydmlopk soil groups are based on esfunates o(mn0potentlat &oils are <br />sSgned to one of four groups common to the rate of waferinbltmtihn when tom <br />soils are not protected by Vegetation, are thompghlV wet, and resolve <br />precipitation term long durallon source <br />The soils In the United Slates are accused to four groops(A, B. C. and Band <br />three dual classes SAD BIB, and CID). The groups are defined as follows: <br />Group A. Sails having a high lnblle ion rate (low mnoR pateni when <br />thoroughly wet These moved mainly of deep, well brainetl to excessively <br />drained sands or gravelly sands. These sails have ahigh rate of water. <br />transmission. <br />Group B. Boils having a moderate interstice rate when thoroughly wet These <br />sin put of moderately deep or deep modeately was drained or wall <br />drained soils mat lave moderately fine seem to moderately imdrse feature. <br />These soils haver a moderate rate of wager transmission. <br />Groan C. Gets inu og a slow infiitalion rase when thoroughly mt. These consist <br />chlew of ephemeral a layer that impedes the downward treatment of water or <br />sell of moderately tine tedua or fine tetlure. These share have aplaw rate of <br />water. lrahsmtssam. <br />Group D. Soils laving a very slow research rate (BtIII runoff patermalj when <br />thoroughly wet. These consist chiefly hf clays that have M1igh shrink silver <br />layer at osoils mss M1aver.an waterbale, eons mat have apayimpe lh <br />layereal err me surface very Ms rat of shallow impervlaus <br />meRral. These coils have very May rate of water lansmissian. <br />if a soil is assigned to a dual hydrahogic group (AN. Bar, or CID), the first letter Is <br />for drained areas and the second is far unnamed areas. Only the carry that in <br />their natural madalon are in drum D are asvgaed to dual classes <br />Rating Options <br />Aggmg ba MWM1M Domtnanl Condition <br />Component Perm»I Cont NOnd Spearked <br />pe -!cork Wrbr, Higher <br />Wei <br />cotmemuaesorvea dorio.w���asPSOes rage 4 04 <br />uV <br />