Each soil type has a certain level of acidity. This acidity is measured by pH levels. Certain turf types do not grow well in higher pH soils. These soils are considered acidic. Dolomitic limestone is applied as a base element to balance out the acidity in the soil bringing the pH down to a desired level. Lime applications are recommended on an annual basis for lawns in the triangle area. Most lawns in the triangle have clay soils causing them to be acidic or have high levels of pH.