{HEAD ~ Treated stormwater} passes through the underdrain pipe, through an underdrain pipe opening in the sidewall or bottom to a storm drain or sewer system or other type of discharge system or {TAIL ~ method} 
{ HEAD ~ Treated stormwater } passes through the underdrain pipe , through an underdrain pipe opening in the sidewall or bottom to a storm drain or sewer system or other type of discharge system or { TAIL ~ method }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL