Stony Brook Estates plans revised drainage; board asks for updated as-built and DOT coordination

Mark Day of Day & Stoza and project engineers presented revised drainage and grading for the Stony Brook Estates project, describing a plan to intercept an existing storm sewer, remove a short pipe section, and route stormwater through a vegetated swale with concrete sidewalls and a 4-by-8 concrete box at the roadway entrance. The presentation noted prior DOT discussions and that a DOT permit for the access is under review.

Engineers said the proposal also retains the previously proposed septic in its original location and that the pump station and forced mains remain part of the system design. Board engineering staff asked for updated existing-conditions mapping to verify the location of the existing detention pond and confirm that earlier construction matched approved plans; they also flagged concerns about outstanding erosion-control obligations and stop-work orders issued during prior unauthorized site work.

Board members asked the applicant to provide correspondence or a letter from the water company confirming proposed water connections and to update the SWPPP (stormwater pollution prevention plan) and as-built mapping to show recent site changes. The board recommended a sitewalk to observe current conditions and asked applicants to identify how prior violations will be corrected during final approvals.

Next steps: applicants to submit updated drainage details, existing-conditions maps, written confirmation from the water company, responses to outstanding engineering comments, and correction plans for prior erosion-control violations; staff will consider a sitewalk to confirm conditions before advancing approvals.