Plans take shape for underground drainage system at San Mateo County Event Center
Expected to temporarily hold excess sewer flows during storms, a project to build an underground flow equalization system underneath the San Mateo County Event Center parking lot is one of several components of San Mateo’s Clean Water Program. … But for many residents … pile driving and the installation of dewatering wells included in the project’s construction plans drew concerns about noise, the structural integrity of nearby homes and the project’s impact on neighbors’ quality of life.