Study for the North Carolina Septic Inspector Exam. Use detailed flashcards and multiple choice questions with hints and explanations. Get exam-ready today!

Multiple Choice

Which soil group corresponds to LTAR range 1.2 - 0.8 gpd/ft2?

Long-Term Acceptable Rate (LTAR) tells you how much effluent soil can absorb per day per square foot over the long term. Soils are grouped I through IV based on their LTAR values: higher LTAR means the soil can accept more wastewater per unit area, while lower LTAR means less. The range 1.2 to 0.8 gpd/ft2 falls into the higher end of what soils can handle, which is assigned to the best soils—Soil Group I. In other words, this LTAR range indicates the soil has strong absorptive capacity, aligning with Group I characteristics.

Long-Term Acceptable Rate (LTAR) tells you how much effluent soil can absorb per day per square foot over the long term. Soils are grouped I through IV based on their LTAR values: higher LTAR means the soil can accept more wastewater per unit area, while lower LTAR means less. The range 1.2 to 0.8 gpd/ft2 falls into the higher end of what soils can handle, which is assigned to the best soils—Soil Group I. In other words, this LTAR range indicates the soil has strong absorptive capacity, aligning with Group I characteristics.