The Environmental Water Resources Institute (EWRI) of the American Society of Civil Engineers (ASCE) has announced it will conduct public comment periods on revisions to three urban subsurface drainage standards. The standards, Guidelines for Operation and Maintenance of Urban Subsurface Drainage, Guidelines for Installation of Urban Subsurface Drainage and Guidelines for Design of Urban Subsurface Drainage, cover such topics as site analysis, system configuration, filters and envelopes, hydraulics and hydrology, structural considerations, materials, site inspection, excavation, installation, safety, inspection of materials, equipment, and construction of urban subsurface drainage. The public comment period for the proposed revisions is from October 1, 2004, to November 15, 2004.

The public comment period is one of the final stages of the consensus standards development process, and will be conducted using ASCE's Web- based balloting system. Anyone wishing to participate in the public comment period should contact Eileen Boeing, ASCE standards coordinator, at eboeing@asce.org, for specific instructions. Please specify in the e-mail the standard on which you wish to comment. The EWRI Urban Drainage standards committee will review and address all responses submitted during the public comment period.

Source: ASCE, Aug. 17, 2004