Sec. 6-66. As Built Grading Survey; Certificate Of Completion:
   (a)   An "as built" grading survey shall be provided after completion of the following construction work and grading activities for which a stormwater drainage plan was required, and subject to the further requirements set forth in subsections (b) through (j) of this section:
      (1)   The construction of a new single-family residential building;
      (2)   Any work or grading activity which increases the runoff volume or rate, or changes the runoff pattern;
      (3)   Any work or grading activity within a drainage easement or swale.
   (b)   An approved licensed design professional shall provide certified calculations for runoff volume, rate and sewer capacity. Postconstruction as built survey is to be prepared and certified by the original design professional for the project and is to include elevations for top of foundation (T/F), brick ledge(s), and adjacent grades at foundation, rim and inverts for all drainage structures, downspout and sump discharges and drainage swales, at a minimum.
   (c)   All work within the flood prone zones shall be documented.
   (d)   Datum for surveys shall be NAVD 88 or the latest datum used by the village.
   (e)   All as built drawings are to be submitted on paper and electronically in the latest format compatible with the village's geographical information system (GIS).
   (f)   After original plan approval, all subsequent changes must be submitted in writing with supporting calculations. Submittals will also be required for building additions and any work necessitating a stormwater drainage plan.
   (g)   As a condition of approval of an as built grading plan, written maintenance instructions are to be submitted for review and approval. The owner must provide a maintenance commitment to the village.
   (h)   The owner of the site shall provide a certificate of completion by owner's contractor, or by a surveyor, after completion of all construction work and grading activities not described in subsection (a) of this section for which a stormwater drainage plan was required. A certificate of completion from owner's contractor or from a surveyor is acceptable only with prior approval of the village engineer. Otherwise, only an "engineer's certificate of completion", as defined in section 6-60 of this chapter, shall be acceptable.
   (i)   The village engineer shall approve the "as built" grading survey or certificate of completion if the village engineer determines that the approved stormwater drainage plan for the site has been implemented as required by this article. No occupancy permit of any kind shall be issued until such survey or certificate has been approved by the village engineer and is on file with the director of community development.
   (j)   All "as built" grading surveys shall include public record easement information for the site. "As built" grading surveys shall be provided to the village in paper and electronic formats. (Ord. 0-09-09, 4-20-2009)