(A)
After completion of construction of the project and before final acceptance of the stormwater management plan, a professionally prepared and certified 'as-built' set of plans shall be submitted to the Ingalls Drainage Board for review. Additionally, a digital copy of the 'as-built' plans is required in a format accepted by the Ingalls Drainage Board and/or the Ingalls Town Engineer. These plans shall include all pertinent data relevant to the completed storm drainage system and stormwater management facilities, and shall include:
(1) Pipe size and pipe material;
(2) Invert elevations;
(3) Top rim elevations;
(4) Pipe structure lengths;
(5) BMP types, dimensions, and boundaries/easements;
(6) "As-planted" plans for BMPs, as applicable;
(7) Data and calculations showing detention basin storage volume;
(8) Data and calculations showing BMP treatment capacity; and
(9) Certified statement on plans stating the completed storm drainage system and stormwater management facilities substantially comply with construction plans and the stormwater management permit as approved by the Ingalls Drainage Board. (See certificate in Ingalls Stormwater Technical Standards Manual.)
(B) The property owner, developer or contractor shall be required to file a five-year maintenance bond or other acceptable guarantee with the Ingalls Drainage Board and/or the Ingalls Town Engineer, prior to acceptance, in an amount not to exceed 25% of the cost of the stormwater drainage system, and in a form satisfactory to the Ingalls Drainage Board's attorney in order to assure that such stormwater installation was done according to standards of good workmanship, that the materials used in the construction and installation were of good quality and construction, and that such project was done in accordance with the accepted plans, and this chapter. The bond or other acceptable guarantee shall be in effect for a period of five years after the date of the final project acceptance by the Ingalls Drainage Board and/or the Ingalls Town Engineer.
(C) To verify that all regulated drain tiles are functioning properly, visual recordings (via closed circuit television) of such tile drains shall be required, once following the completion of installation (including the installation of all utility mains) and the second time before release of maintenance bonds. These visual recordings will be scheduled by the Ingalls Drainage Board and/or the Ingalls Town Engineer and paid for by the developer. Notices shall be provided to the Ingalls Drainage Board and/or the Ingalls Town Engineer within 72 hours following the completion of installation and again at least 60 days prior to the expiration date of the maintenance bond so that the noted recordings may be scheduled. Reports summarizing the results of the noted visual recordings shall be reviewed and accepted by the Ingalls Drainage Board and/or the Ingalls Town Engineer before the plat is recommended for recording and again before maintenance bond would be recommended to be released.
(Ord. - -, passed 12-20-21)