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 {HEAD ~ other type} of {TAIL ~ discharge system} or method 
of
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 { HEAD ~ other type } of { TAIL ~ discharge system } or method
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 HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH