What does excess lush vegetation in the drain field area suggest regarding water levels?

Excess lush vegetation in the drain field area is an indicator of high water levels. This is because a drain field functions by allowing wastewater to seep into the soil, where it is naturally filtered and treated before reentering the groundwater system. When a drain field has high water levels, it can result in saturated soil conditions, which in turn promote the growth of lush vegetation.

Plants thrive in such moist conditions, often leading to dense growth. In contrast, other options like optimal drainage or healthy soil would typically not co-exist with excessive moisture, as they would suggest a balanced environment where water is properly absorbed and managed. Low nutrient levels do not directly correlate to lush vegetation; indeed, lush plants often indicate the presence of nutrients in the soil. Therefore, the presence of excess lush vegetation serves as a clear sign that water levels are elevated in the drain field area.