(A) Performance bonds or irrevocable letter of credit for storm water treatment BMPs. If not required by other local agencies or regulations, the Administering Authority may, at its discretion, require the submittal of a performance bond or letter of credit prior to issuance of a permit in order to ensure that the storm water practices listed below in division (A)(1) and (2) of this section are installed by the permit holder as required by the approved storm water management plan. The performance security shall contain forfeiture provisions for failure to complete such work as specified in the storm water management plan. The amount of the installation performance security shall be the total estimated construction cost plus 25% of the storm water management practices approved under the permit, including:
(1) Total installed cost for storm drain pipe, culvert, manhole, and box inlet installation; and
(2) Total cost for site filling and grading, including construction of open drainage swales and detention/retention facilities.
(B) Maintenance bonds. If a financial guarantee is required under division (A) of this section, then prior to the release of the storm water facility performance surety, a maintenance surety will be required. The maintenance surety will be in an amount not to exceed 20% of the cost of construction and cover a period of three years from the date of acceptance by the Administering Authority.
(C) As-built documents required.
(1) As part of the final acceptance process, as-built documents, being plans and calculations of the as-built conditions, of the storm water facilities, must be submitted to the Administering Authority, as set forth herein, for the following types of developments:
(a) All platted subdivisions;
(b) Industrial and commercial sites.
(2) As-built drawings shall be prepared and certified by either a land surveyor or a professional engineer licensed in the State of Indiana and provide the following information:
(a) Building pad elevations;
(b) Structure inverts, pipe inverts, top- of-casting elevation and the flow line of rear and/or side yard swales at 50-foot intervals or at lot lines;
(c) Horizontal alignment of storm drain pipes, culverts, streets, and storm drain structures, to a minimum accuracy of +/- two feet;
(d) The horizontal location and/or bank cross-sections for all detention/retention facilities or other information sufficient to verify that the constructed detention/retention facility provides the required minimum runoff storage volume; and
(e) A tag reference to the operations and maintenance manual for each BMP will be included.
(3) As-built plans will be submitted as both digital and paper copy. The digital submittal will be in a format compatible with the county's Geographical Information System (GIS) database. If notice of noncompliance is not given within 30 calendar days from the date of submission of as-built documents, the documents shall be construed as approved.
(D) Release of sureties. Notice of scheduled date for completion of construction shall be provided to the Administering Authority at least 72 hours prior to its planned completion. The contractor or owner will schedule the final inspection with the Administering Authority's observer. Upon final approval and acceptance, the performance bond or letter of credit will be released at the subsequent meeting of the Board.
(Ord. 2010-BCC-13, passed 4-19-10) Penalty, see § 154.99