(A) At a minimum, inspections shall be made and documented at the following specified stages of construction.
(1) For ponds.
(a) Upon completion of excavation to sub-foundation and when required, installation of structural supports or reinforcement for structures, including, but not limited to:
1. Core trenches for structural embankments;
2. Inlet and outlet structures, anti-seep collars or diaphragms and watertight connectors on pipes; and
3. Trenches for enclosed storm drainage facilities.
(b) During placement of structural fill, concrete and installation of piping and catch basins;
(c) During backfill of foundations and trenches;
(d) During embankment construction; and
(e) Upon completion of final grading and establishment of permanent stabilization.
(2) Wetlands. At the stages specified for pond construction in division (A)(1) above of this section, during and after wetlands reservoir area planting, and during the second growing season to verify a vegetation survival rate of at least 50%.
(3) For infiltration trenches.
(a) During excavation to subgrade;
(b) During placement and backfill of underdrain systems and observation wells;
(c) During placement of geotextiles and all filter media;
(d) During construction of appurtenant conveyance systems such as diversion structures, pre-filters and filters, inlets, outlets and flow distribution structures; and
(e) Upon completion of final grading and establishment of permanent stabilization.
(4) For infiltration basins. At the stages specified for pond construction in division (A)(1) above of this section and during placement and backfill of underdrain systems.
(5) For filtering systems.
(a) During excavation to subgrade;
(b) During placement and backfill of underdrain systems;
(c) During placement of geotextiles and all filter media;
(d) During construction of appurtenant conveyance systems such as flow diversion structures, pre-filters and filters, inlets, outlets, orifices and flow distribution structures; and
(e) Upon completion of final grading and establishment of permanent stabilization.
(6) For open channel systems.
(a) During excavation to subgrade;
(b) During placement and backfill of underdrain systems for dry swales;
(c) During installation of diaphragms, check dams or weirs; and
(d) Upon completion of final grading and establishment of permanent stabilization.
(7) For nonstructural practices. Upon completion of final grading, the establishment of permanent stabilization, and before issuance of use and occupancy approval.
(B) The Town Planning and Zoning Commission, its agent(s) or the Town Engineer may, for enforcement purposes, use any one or a combination of the following actions:
(1) A notice of violation shall be issued specifying the need for a violation to be corrected if the stormwater management plan noncompliance is identified;
(2) A stop work order shall be issued for the site by the Town Planning and Zoning Commission, its agent(s) or the Town Engineer if a violation persists;
(3) Bonds or securities may be withheld or the case may be referred for legal action if reasonable efforts to correct the violation have not been undertaken; or
(4) In addition to any other sanctions, a civil action or criminal prosecution may be brought against any person in violation of the stormwater management regulations or this chapter.
(C) Any step in the enforcement process may be taken at any time, depending on the severity of the violation.
(D) Once construction is complete, as-built plan certification shall be submitted by a professional engineer licensed in the state to ensure that constructed stormwater management practices and conveyance systems comply with the specifications contained in the approved plans. At a minimum, as-built certification shall include a set of drawings comparing the approved stormwater management plan with what was constructed the Town Planning and Zoning Commission, its agent(s) or the Town Engineer may require additional information.
(Ord. passed 7-14-2008)