Specifications include, but are not limited to:. The number of homes affected is unknown. Defective foundations are known to exist in Andover, Ashford, Bolton, Columbia, Coventry, East Hartford, East Windsor, Ellington, Enfield, Glastonbury, Manchester, Mansfield, Somers, South Windsor, Stafford, Tolland, Union, Vernon, Willington and Woodstock, but there may be as-yet-unidentified properties in other North Central and Northeastern communities. The expectation is that an indefinite number of homeowners and/or homebuyers will require the assistance of structural engineers to identify the scope of work for replacing their crumbling concrete foundation. . CRCOG is seeking to add to its list of professional, experienced and qualified residential structural engineers who can inspect the foundation, advise homeowners on next steps, and develop plans and provide cost estimates for completing the work.