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San Joaquin County, California 51
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<br /> i opacity is low. The effective rooting depth is 60 inches slopes of 2 to 5 percent. Included areas make up about
<br /> +`..more. Runoff is slow, and the hazard of water 15 percent of the total acreage.
<br /> erosion is slight. The rate of water intake in irrigated Permeability is rapid in the Delhi soil. Available water
<br /> :areas is 3.0 inches per hour. The hazard of soil blowing capacity is low. The effective rooting depth is 60 inches
<br /> s'very severe. or more. Runoff is slow, and the hazard of water
<br /> °:Most areas of this unit are used for irrigated crops, erosion is slight. The rate of water intake in irrigated
<br /> orchards, or vineyards. A few areas are used for areas is 3.0 inches per hour. The hazard of soil blowing
<br /> homesite development. is severe.
<br /> This unit is suited to irrigated row, field, orchard, and Most areas of this unit are used for irrigated crops,
<br /> vineyard crops. The main limitation is the low available orchards, or vineyards. A few areas are used for
<br /> water capacity. General management considerations homesite development.
<br /> include the very severe hazard of soil blowing. The high This unit is suited to irrigated row, field, orchard, and
<br /> splercentage of sand in the soil reduces the amount of vineyard crops. The main limitation is the low available
<br /> Tioisture available for plant growth. Because the soil is water capacity. General management considerations
<br /> aioughty, applications of irrigation water should be light include the severe hazard of soil blowing. The high
<br /> and frequent. The water should be applied in amounts percentage of sand in the soil reduces the amount of
<br /> sufficient to wet the root zone but small enough to moisture available for plant growth. Because the soil is
<br /> urnO.irnize the leaching of plant nutrients. Sprinkler and droughty, applications of irrigation water should be light
<br /> drip.irrigation systems are suitable. They permit an and frequent. The water should be applied in amounts
<br /> even, controlled application of water, help to prevent sufficient to wet the root zone but small enough to
<br /> .excessive runoff, and minimize the risk of erosion. A minimize the leaching of plant nutrients. Sprinkler and
<br /> ige pan forms easily if the soil is tilled when wet. drip irrigation systems are i
<br /> — p suitable. The permit n
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<br /> Cf iseling or subsoiling breaks up the pan. When the even, controlled application of water, help to prevent
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<br /> wind velocity is high in spring, the hazard of soil excessive runoff, and minimize the risk of erosion. A
<br /> ;Mewing can be reduced by properly managing all crop tillage pan forms easily if the soll is tilled when wet.
<br /> residue and by minimizing tillage. Chiseling or subsolling breaks up the pan. When the
<br /> If this unit is used for homesite development, the wind velocity is high in spring, the hazard
<br /> of soil
<br /> in limitation is the rapid permeability in the blowing can be reduced bYproperly man+ in all cro
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<br /> substratum. Community sewage systems may be residue and by minimizing tillage.
<br /> needed because seepage from onsite sewage disposal If this unit is used for homesite development, the
<br /> systems can result in the contamination of water main limitation is the rapid permeability in the
<br /> supplies. substratum. Community sewage systems may be
<br /> is map unit is in capability units Ills-4 (MLRA-17), needed because seepage from onsite sewage disposal
<br /> irrigated, and !Ve-4 (MLRA-17), nonirrigated. It is in systems can result in the contamination of water
<br /> rieg+3tative soil group B. supplies.
<br /> This map unit is in capability units Ills-4 (MLRA-17),
<br /> .42—Delhi loamy sand, 0 to 2 percent slopes.'This irrigated, and IVe-4 (MLRA-17), nonirrigated. It is in
<br /> fiery:deep, somewhat excessively drained, nearly level vegetative soil group B.
<br /> soEl.is on dunes. It formed in wind-modified alluvium
<br /> derived from granitic rock sources. Elevation is 25 to 143—Delhi-Urban land complex, 0 to 2 percent
<br /> 135 feet. The average annual precipitation is about 11 slopes. This nearly level map unit is on dunes.
<br /> nehes, the average annual air temperature is about 60 Elevation is 25 to 135 feet. The average annual
<br /> 2degrees F, and the average frost-free period is about precipitation is about 11 inches, the average annual air
<br /> 7t) days. temperature is about 60 degrees F, and the average
<br /> Typically, the surface layer is grayish brown and light frost-free period is about 270 days.
<br /> tarownish gray loamy sand about 16 inches thick. The This unit is 50 percent Delhi loamy sand and 35
<br /> t?p<per 10 inches of the underlying material is grayish percent Urban land. The components of this unit occur
<br /> bVown loamy sand. The lower part to a depth of 60 as areas so intricately intermingled that it was not
<br /> ;inches is pale brown sand. In some areas the surface practical to map them separately at the scale used.
<br /> layef is loamy fine sand or tine sand. Included in this unit are small areas of Honcut,
<br /> Included in this unit are small areas of Honcut, Tinnin, and Veritas soils in the slightly lower landscape
<br /> Tnnin, and Veritas soils in the slightly lower landscape positions. Also included are small areas of soils that
<br /> positions. Also included, on the slightly higher parts of have been altered by construction activities. Included
<br /> the,l`andscape, are small areas of Delhi soils that have areas make up about 15 percent of the total acreage.
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