<tr><td rowspan=4 class="text-center">North Carolina<ref>Brown RA, Asce AM, Hunt WF, Asce M. Underdrain Configuration to Enhance Bioretention Exfiltration to Reduce Pollutant Loads. J Environ Eng. 2011;137(11):1082-1091. doi:10.1061/(ASCE)EE.1943-7870.0000437.</ref></td> | <tr><td rowspan=4 class="text-center">North Carolina<ref>Brown RA, Asce AM, Hunt WF, Asce M. Underdrain Configuration to Enhance Bioretention Exfiltration to Reduce Pollutant Loads. J Environ Eng. 2011;137(11):1082-1091. doi:10.1061/(ASCE)EE.1943-7870.0000437.</ref></td> |