Open invitation to prequalify, deadline 17.11.2011, for microtunnelling contracts at upcoming Broad Creek Augmentation Conveyance Project, solicitation number CP4231C05 MT RFQu. Further information from Jessica Wright at Washington Suburban Sanitary Commission, tel +1 301 206-8245, or visit www.wsscwater.com/home/jsp/content/contract-business-ops.faces. 40/11.