Class I effluent for aerobic systems shall discharge to which option?

Class I effluent in aerobic systems is characterized by its high level of treatment, which makes it suitable for various forms of discharge. This type of effluent generally meets or exceeds the public health and environmental standards set by regulatory agencies.

Discharging it to a subsurface seepage system is appropriate as this method allows for the effluent to slowly percolate through the soil, which provides additional natural treatment and minimizes potential contamination of surface water and groundwater.

Using surface discharge is also permissible under specific conditions. This method can be employed if local regulations allow it, and if measures are in place to prevent any potential health risks or environmental impacts from the treated effluent.

Employing a sand filter is another method for discharging Class I effluent. Sand filters provide additional filtration and treatment, following the aerobic treatment process. They can enhance the quality of effluent even further, ensuring any remaining contaminants are significantly reduced.

Thus, since Class I effluent can safely and effectively be discharged using any of these methods, the inclusive option best reflects the flexibility and versatility of Class I effluent management practices.