QUESTION: What are the soil factors used to determine the long term acceptance rate (LTAR) or soil-sizing factor?
ANSWER: This is one of the most common soils questions I hear. And specifically what is being asked is, "How can I identify soil texture, structure and consistence?''
The LTAR or soil-sizing factor is based on analysis of soil characteristics at the depth the soil treatment unit is installed. The factor is expressed in terms of gallons per day per square foot. Establishment of the LTARs is based on numerous research studies dating back as early as the













