§ 52.28  PERMIT REQUIREMENTS AND PROCEDURES.
   (A)   Conceptual drainage plan review.
      (1)   In order to gain an understanding of the drainage requirements for a specific project, a developer may submit conceptual drainage plans and calculations for review by the Town Drainage Board and/or the Town Engineer.
      (2)   The direction provided by the Town Drainage Board and/or the Town Engineer during the review is based on preliminary data and shall not be construed as an approval or binding on either party.
      (3)   The following is a general listing of minimum data requirements for the review of conceptual drainage plans:
         (a)   Two complete sets of conceptual plans showing general project layout, including existing and proposed drainage systems (plan sheets must be larger than 11 inches by 17 inches, but not to exceed 24 inches by 36 inches);
         (b)   General description of the existing and proposed drainage systems in narrative form;
         (c)   Watershed boundaries with U.S.G.S. contours or best information possible; and
         (d)   Existing watercourse or regulated drains.
   (B)   Permit procedures.
      (1)   This section applies to all development, or re-development of land, that results in land disturbance of one acre or more. Individual lots with land disturbance less than one acre that are developed within a larger permitted project site, should refer to division (D) below for plan review requirements and procedures.
      (2)   Figure 1 in division (J) below is a flowchart summarizing the plan review/permit approval process and can be found at the end of this chapter. For projects located within the MS4 area boundary, as shown in division (K) below, the project site owner shall submit an application for a stormwater management permit to the Town Drainage Board and/or the Town Engineer. The application will include an initial notice of intent letter (NOI) that would also act as the permit application form, proof of public notice, construction plan sheets, stormwater drainage technical report, a stormwater pollution prevention plan, and any other necessary support information. Specific information to be included in the application can be found in division (C) below. Four copies of each application must be submitted to the Town Drainage Board and/or the Town Engineer. Additionally, a digital copy of the construction plans is required in a format accepted by the Town Drainage Board and/or the Town Engineer.
      (3)   After the Town Drainage Board and/or the Town Engineer receive the application, the applicant will be notified as to whether his or her application was complete or insufficient. The applicant will be asked for additional information if the application is insufficient. If the application is complete, the Town Drainage Board and/or the Town Engineer will forward one copy of the application to the Soil and Water Conservation District (SWCD) for its review and comment within a ten-day period. The remaining three copies will be reviewed in detail by the Town Drainage Board and/or the Town Engineer and/or its plan review consultants). Once all comments have been received and review completed, the Town Drainage Board and/or the Town Engineer will either accept the project request modifications, or place the project on the agenda of the next scheduled meeting of the Town Drainage Board. If the project must go through a scheduled meeting, the Town Drainage Board and/or the Town Engineer will furnish the applicant a complete list of comments and objections to the plans and accompanying data prior to the scheduled meeting. After the scheduled meeting, the Town Drainage Board will either issue a permit, or request modifications to the construction plans.
      (4)   Any person to which this subchapter applies may request a variance from the provisions of this subchapter in writing and mailed certified mail return receipt requested to the Town Drainage Board c/o the Town Hall. The request shall identify the provision(s) of the subchapter from which the applicant requests the variance and a detailed statement as to the basis for the request. Written notice of the date, time and location at which the variance request will be considered by the Town Drainage Board shall be mailed to the applicant by the Board. At that date, time and location or any other date, time or location as established by the Town Drainage Board, the variance may be considered whereupon a decision to deny, grant or grant in part the variance being requested, will be made. The Town Drainage Board may consider the recommendations and comments of the Town Engineer and/or the Town Public Works Commissioner, as well as the comments of the applicant or any other person(s) having knowledge of information pertinent to the variance request.
      (5)   The Town Drainage Board may grant, in whole or in part, a variance from the terms of this subchapter, but only upon finding that the following requirements have been satisfied:
         (a)   The application of the subchapter provisions will present or cause practical difficulties for a development or development site; provided, however, that practical difficulties shall not include the need for the site owner to incur additional reasonable expenses in order to comply with the ordinance; and
         (b)   The granting of the relief requested will not substantially prevent the goals and purposes of this subchapter, nor result in less effective management of stormwater runoff.
      (6)   The project site owner must notify the Town Drainage Board and/or the Town Engineer and IDEM 48 hours before beginning construction. Notification shall be in the form of an updated IDEM NOI form. Once a permit has been issued and the updated NOI submitted to the Town Drainage Board and/or the Town Engineer and IDEM 48 hours before beginning construction, construction may commence. Once construction starts, the project owner shall monitor construction activities and inspect all stormwater pollution prevention measures in compliance with this subchapter and the terms and conditions of the approved permit. Upon completion of construction activities, as-built plans must be submitted to the Town Drainage Board and/or the Town Engineer. A notice of termination (NOT) shall be sent to the Town Drainage Board and/or the Town Engineer once the construction site has been stabilized and all temporary erosion and sediment control measures have been removed. The Town Drainage Board and/or the Town Engineer, or representative, shall inspect the construction site to verify the requirements for an NOT have been met. Once the applicant receives a “verified” copy of the NOT, they must forward a copy to IDEM. Permits issued under this scenario will expire five years from the date of issuance. If construction is not completed within five years, the NOI must be resubmitted at least 90 days prior to expiration. No Rule 5 (327 I.A.C. 15-5) permit is required from IDEM for projects within the MS4 area boundary, since the Town Drainage Board is the permitting authority.
   (C)   Information requirements.
      (1)   Specific projects or activities may be exempt from all or part of the informational requirements listed below. Exemptions are detailed in the “applicability and exemptions” sections of §§ 52.24 through 52.27. If a project or activity is exempt from any or all requirements of this subchapter, an application should be filed listing the exemption criteria met in lieu of the information requirements listed below. This level of detailed information is not required from individual lots, disturbing less than one acre of land, developed within a larger permitted project site. Review and acceptance of the lots is covered under division (D) below.
      (2)   The different elements of a permit submittal include a notice of intent (NOI), proof of publication of a public notice, construction plans, a stormwater drainage technical report, a stormwater pollution prevention plan for active construction sites, a post-construction stormwater pollution prevention plan and any other necessary supporting information. All plans, reports, calculations and narratives shall be signed and sealed by a professional engineer or a licensed surveyor, registered in the state.
         (a)   Initial notice of intent. The NOI is a standard form developed by the State Department of Environmental Management which requires general project information. The NOI form should be completed in full and accompanied by proof of publication in a newspaper of general circulation, in the affected area, that notified the public that a construction activity is to commence. The publication must include the following language:
            “(Company name, address) is submitting an NOI letter to notify the Town Drainage Board and/or the Town Engineer and the State Department of Environmental Management of our intent to comply with the requirements of the McCordsville Stormwater Management Ordinance, as well as the requirements of 327 I.A.C. 15-5 and 327 I.A.C. 15-13, to discharge stormwater from construction activities for the following project (name of the construction project address of the location of the construction project and Parcel Identification Number). Runoff from the project site will discharge to (stream(s) receiving the dischargers)).”
         (b)   Construction plans. Construction plan sheets (not to exceed 24 inches by 36 inches in size) and an accompanying narrative report shall describe and depict the existing and proposed conditions. Construction plans need to include the following detailed items:
            1.   Project narrative and supporting documents, including the following information:
               a.   An index indicating the location, in the construction plans, of all information required by this division (C)(2)(b)1.;
               b.   Description of the nature and purpose of the project;
               c.   A copy of a legal boundary survey for the site, performed in accordance with Rule 12 of I.A.C. Title 865, or any applicable and subsequently adopted rule or regulation for the subdivision limits, including all drainage easements and wetlands;
               d.   Soil properties, characteristics, limitations and hazards associated with the project site and the measures that will be integrated into the project to overcome or minimize adverse soil conditions;
               e.   General construction sequence of how the project site will be built, including phases of construction;
               f.   Fourteen-digit watershed hydrologic unit code;
               g.   A reduced plat or project site map showing the lot numbers, lot boundaries, easements and road layout and names. The reduced map must be legible and submitted on a sheet or sheets no larger than 11 inches by 17 inches for all phases or sections of the project site;
               h.   A topographic map of the land to be developed and the adjoining land whose topography may affect the layout or drainage of the development. The contour intervals shall be one foot when slopes are less than or equal to 2%, and shall be two feet when slopes exceed 2%. All elevations shall be given in North American Vertical Datum of 1988 (NAVD). The horizontal datum of topographic map shall be based on State Plane Coordinates, NAD 83. The map will contain a notation indicating these datum information:
                  i.   If the project site is less than or equal to two acres in total land area, the topographic map shall include all topography of land surrounding the site to a distance of at least 100 feet; and/or
                  ii.   If the project site is greater than two acres in total land area, the topographic map shall include all topography of land surrounding the site to a distance of at least 200 feet.
               i.   Identification of any other state or federal water quality permits that are required for construction activities associated with the owner’s project site; and
               j.   Proof of errors and omissions insurance for the registered professional engineer or licensed surveyor showing a minimum amount of $1,000,000 in coverage.
            2.   Vicinity map depicting the project site location in relationship to recognizable local landmarks, towns and major roads, such as a U.S.G.S. topographic quadrangle map, or county or municipal road map;
            3.   An existing project site layout that must include the following information:
               a.   Location, name and normal water level of all wetlands, lakes, ponds and water courses on, or adjacent to, the project site;
               b.   Location of all existing structures on the project site;
               c.   One hundred-year floodplains, floodway fringes and floodways. Please note if none exists;
               d.   Soil map of the predominant soil types, as determined by the United States Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS) Soil Survey, or as determined by a soil scientist. Hydrologic classification for soils should be shown when hydrologic methods requiring soils information are used. A soil legend must be included with the soil map;
               e.   Identification and delineation of vegetative cover such as grass, weeds, brush and trees on the project site;
               f.   Location of storm, sanitary, combined sewer and septic tank systems and outfalls;
               g.   Land use of all adjacent properties;
               h.   Identification and delineation of sensitive areas;
               i.   Existing topography at a contour interval appropriate to indicate drainage patterns;
               j.   The location of regulated drains, farm drains, inlets and outfalls, if any of record or known; and
               k.   Location of all existing cornerstones within the proposed development and a plan to protect and preserve them.
            4.   Final project site layout including the following information:
               a.   Location of all proposed site improvements, including roads, utilities, lot delineation and identification, proposed structures and common areas;
               b.   One hundred-year floodplains, floodway fringes and floodways. Please note if none exists; and
               c.   Proposed final topography, at a contour interval appropriate to indicate drainage patterns.
            5.   A grading plan, including the following information:
               a.   Delineation of all proposed land-disturbing activities, including off-site activities that will provide services to the project site;
               b.   Location of all soil stockpiles and borrow areas;
               c.   Information regarding any off-site borrow, stockpile or disposal areas that are associated with a project site, and under the control of the project site owner; and
               d.   Existing and proposed topographic information.
            6.   A drainage plan, including the following information:
               a.   An estimate of the peak discharge, based on the ten-year storm 24-hour event of the project site for post-construction conditions;
               b.   The proposed 100-year and ten-year release rates determined for the site, showing the methodology used to calculate them and detailing considerations given to downstream restrictions (if any) that may affect the calculated allowable release rates;
               c.   Calculation showing peak runoff rate after development for the ten-year and 100-year return period 24-hour storms do not exceed the respective allowable release runoff rates;
               d.   Location, size and dimensions of all existing streams to be maintained, and new drainage systems such as culverts, bridges, storm sewers, conveyance channels and 100-year overflow paths/ponding areas shown as hatched areas, along with all associated easements;
               e.   Locations where stormwater may be directly discharged into groundwater, such as abandoned wells or sinkholes. Please note if none exists;
               f.   Locations of specific points where stormwater discharge will leave the project site;
               g.   Name of all receiving waters. If the discharge is to a separate municipal storm sewer, identify the name of the municipal operator and the ultimate receiving water;
               h.   Location, size and dimensions of features such as permanent retention or detention facilities, including natural or constructed wetlands, used for the purpose of stormwater management. Include existing retention or detention facilities that will be maintained, enlarged or otherwise altered and new ponds or basins to be built and the basis of their design;
               i.   The estimated depth and amount of storage required by design of the new ponds or basins; and
               j.   One or more typical cross-sections of all existing and proposed channels or other open drainage facilities carried to a point above the 100-year high water and showing the elevation of the existing land and the proposed changes, together with the high water elevations expected from the 100-year storm under the controlled conditions called for by this subchapter, and the relationship of structures, streets and other facilities.
            7.   Any other information required by Town Drainage Board and/or the Town Engineer in order to thoroughly evaluate the submitted material.
         (c)   Stormwater drainage technical report. A written stormwater drainage technical report must contain a discussion of the steps taken in the design of the stormwater drainage system. The technical report needs to include the following detailed items:
            1.   A summary report, including the following information:
               a.   The significant drainage problems associated with the project;
               b.   The analysis procedure used to evaluate these problems and to propose solutions;
               c.   Any assumptions or special conditions associated with the use of these procedures, especially the hydrologic or hydraulic methods;
               d.   The proposed design of the drainage control system; and
               e.   The results of the analysis of the proposed drainage control system showing that it does solve the project’s drainage problems. Any hydrologic or hydraulic calculations or modeling results must be adequately cited and described in the summary description. If hydrologic or hydraulic models are used, the input and output files for all necessary runs must be included in the appendices. A map showing any drainage area subdivisions used in the analysis must accompany the report.
            2.   A hydrologic/hydraulic analysis, consistent with the methodologies and calculation included in the McCordsville Stormwater Technical Standards Manual, and including the following information:
               a.   A hydraulic report detailing existing and proposed drainage patterns on the subject site. The report should include a description of present land use and proposed land use. Any off-site drainage entering the site should be addressed as well. This report should be comprehensive and detail all of the steps the engineer took during the design process;
               b.   All hydrologic and hydraulic computations should be included in the submittal. These calculations should include, but are not limited to: runoff curve numbers and runoff coefficients, runoff calculations, stage-discharge relationships, times-of-concentration and storage volumes;
               c.   Copies of all computer runs. These computer runs should include both the input and the outputs. Electronic copies of the computer runs with input files must also be included;
               d.   A set of exhibits should be included showing the drainage sub-areas and a schematic detailing of how the computer models were set up; and
               e.   A conclusion which summarizes the hydraulic design and details how this design satisfies this subchapter.
         (d)   Stormwater pollution prevention plan for construction sites. A stormwater pollution prevention plan associated with construction activities must be designed to, at least, meet the requirements of this subchapter and must include the following:
            1.   Location, dimensions, detailed specifications and construction details of all temporary and permanent stormwater quality measures;
            2.   Temporary stabilization plans and sequence of implementation;
            3.   Permanent stabilization plans and sequence of implementation;
            4.   Temporary and permanent stabilization plans shall include the following:
               a.   Specifications and application rates for soil amendments and seed mixtures; and
               b.   The type and application rate for anchored mulch.
            5.   Construction sequence describing the relationship between implementation of stormwater quality measures and stages of construction activities;
            6.   A typical erosion and sediment control plan for individual lot development;
            7.   Self-monitoring program including plan and procedures;
            8.   A description of potential pollutant sources associated with the construction activities, which may reasonably be expected to add a significant amount of pollutants to stormwater discharges;
            9.   Material handling and storage associated with construction activity shall meet the spill prevention and spill response requirements in 327 I.A.C. 2-6.1; and
            10.   Name, address, telephone number and list of qualifications of the trained individual in charge of the mandatory stormwater pollution prevention self-monitoring program for the project site.
         (e)   Post-construction stormwater pollution prevention plan. The post-construction stormwater pollution prevention plan must include the following information:
            1.   A description of potential pollutant sources from the proposed land use, which may reasonably be expected to add a significant amount of pollutants to stormwater discharges;
            2.   Location, dimensions, detailed specifications and construction details of all post-construction stormwater quality measures;
            3.   A description of measures that will be installed to control pollutants in stormwater discharges that will occur after construction activities have been completed. These practices include infiltration of runoff, flow reduction by use of open vegetated swales and natural depressions, buffer strip and riparian zone preservation, filter strip creation, minimization of land disturbance and surface imperviousness, maximization of open space and stormwater retention and detention ponds;
            4.   A sequence describing when each post-construction stormwater quality measure will be installed;
            5.   Stormwater quality measures that will remove or minimize pollutants from stormwater runoff;
            6.   Stormwater quality measures that will be implemented to prevent or minimize adverse impacts to stream and riparian habitat; and
            7.   A narrative description of the maintenance guidelines for all post-construction stormwater quality measures to facilitate their proper long term function. This narrative description shall be made available to future parties who will assume responsibility for the operation and maintenance of the post-construction stormwater quality measures.
   (D)   Review of individual lots within a permitted project.
      (1)   For individual lots disturbing less than one acre, developed within a larger permitted project a formal review and issuance of an individual lot plot plan permit will be required before a building permit can be issued. All stormwater management measures necessary to comply with this subchapter must be implemented in accordance with permitted plan for the larger project.
      (2)   The following information must be submitted to the Town Drainage Board and/or the Town Public Works Commissioner, for review and acceptance, by the individual lot operator, whether owning the property or acting as the agent of the property owner, as part of a request for review and issuance of an individual lot plot plan permit that must be obtained prior to the issuance of a building permit.
         (a)   A site layout for the subject lot and all adjacent lots showing building pad location, dimensions and elevations, and the drainage patterns and swales;
         (b)   Erosion and sediment control plan that at a minimum, includes the following measures:
            1.   Installation and maintenance of a stable construction site access;
            2.   Installation and maintenance of appropriate perimeter erosion and sediment control measures prior to land disturbance;
            3.   Minimization of sediment discharge and tracking from the lot;
            4.   Clean-up of sediment that is either tracked or washed onto roads. Bulk clearing of sediment shall not include flushing the area with water. Cleared sediment must be redistributed or disposed of in a manner that is in compliance with all applicable statutes, ordinances and rules;
            5.   Adjacent lots disturbed by an individual lot operator must be repaired and stabilized with temporary or permanent surface stabilization; and
            6.   Self-monitoring program including plan and procedures.
         (c)   Certification of compliance stating that the individual lot plan is consistent with the stormwater management permit as approved by the Town Drainage Board, for the larger project; and
         (d)   Name, address, telephone number and list of qualifications of the trained individual in charge of the mandatory stormwater pollution prevention self-monitoring program for the project site.
      (3)   The individual lot operator is responsible for installation and maintenance of all erosion and sediment control measures until the site is stabilized.
   (E)   Changes to plans.
      (1)   Any changes or deviations in the detailed plans and specifications after approval of the applicable stormwater management permit shall be filed with, and accepted by, the Town Drainage Board and/or the Town Engineer prior to the land development involving the change.
      (2)   Copies of the changes, if accepted, shall be attached to the original plans and specifications.
   (F)   Fee structure.
      (1)   Fee amount. As a condition of the submittal and the review of development plans by the town, the applicant shall agree to pay the Town Engineer the applicable fee, as set by the Town Drainage Board and the Town Engineer with respect to the review of all drainage submittals, preliminary plans, final plans, construction plans and accompanying information and data, as well as pre-paid inspection fees.
      (2)   Time of payment. After the meeting at which the Town Drainage Board is scheduled to consider acceptance of the applicant’s stormwater management plan, the Town Drainage Board and/or the Town Engineer will furnish a written statement to the applicant, specifying the total amount due the Town Engineer in connection with the review of the applicant’s submittals, plans and accompanying information and data, including the amount required to be paid by applicant for review and pre-paid inspection fees.
         (a)   As a condition of acceptance of the stormwater management plan by the Town Drainage Board and/or the Town Engineer, applicant shall pay to the Town Engineer the sum set forth in the statement. The Town Engineer may issue the billing statement before the project advances to the final acceptance stage, and the payment is due by applicant upon receipt of the billing statement regardless of whether the project is advanced to the final acceptance stage.
         (b)   The Town Drainage Board and/or the Town Engineer shall have the right to not accept the drainage improvements or to not accept the advancement of any project for which the applicable fees have not been paid.
      (3)   Method of payment. Fees shall be paid by one of the following methods:
         (a)   Certified check;
         (b)   Cashier’s check; or
         (c)   Money order.
      (4)   Refund of payment. Fees are refundable only if the Town Drainage Board and/or the Town Engineer determines that compliance by the development to this subchapter is not necessary.
   (G)   Required assurances.
      (1)   As a condition of approval and issuance of the permit, the Town Drainage Board and/or the Town Engineer shall require the applicant to provide assurance in form of an irrevocable letter of credit or a performance bond when the stormwater management plan has been accepted, all applicable fees paid, and before construction begins.
      (2)   The assurance will guarantee a good faith execution of the stormwater drainage plan, the stormwater pollution prevention plan, the stormwater quality management plan and any permit conditions.
      (3)   The assurance shall be for an amount equal to 110% of the total costs of all stormwater management measures for the entire project.
      (4)   The above-mentioned costs shall be based on an estimate as prepared by a registered engineer or land surveyor and approved by the Town Engineer.
      (5)   The costs shall be for the installation and ongoing monitoring and maintenance of erosion control measures and the construction and ongoing monitoring and maintenance of storm drainage infrastructure, detention/retention facilities and stormwater quality BMP, as regulated under this subchapter, until the construction is completed, site is stabilized, and as-built plans are accepted by the Town Drainage Board and/or the Town Engineer.
      (6)   Assurances shall be for a minimum of $5,000.
      (7)   The intent of this assurance is not only to complete the installation of storm drain infrastructure for the project but also to assure that adequate stormwater pollution prevention measures are properly installed and maintained.
      (8)   If adequate assurances are set aside by the project site owner for the overall project proof of total assurance can be submitted in place of an individual stormwater assurance.
   (H)   Terms and conditions of permits.
      (1)   In granting a stormwater management permit, the Town Drainage Board and/or the Town Engineer may impose terms and conditions as are reasonably necessary to meet the purposes of this subchapter.
      (2)   The project site owner shall ensure compliance with those terms and conditions. Noncompliance with the terms and conditions of permits will be subject to enforcement as described in § 52.29.
      (3)   The project site owner shall inform all general contractors, construction management firms, grading or excavating contractors, utility contractors and the contractors that have primary oversight on individual building lots of the terms and conditions of the stormwater management permit and the schedule for proposed implementation.
      (4)   In the event that a project site is determined to impact or discharge to a sensitive area or is located in an impact drainage area, the Town Drainage Board and/or the Town Engineer and/or the Town Public Works Commissioner may require more stringent stormwater quantity and quality measures than detailed in this subchapter or in the Indiana Stormwater Quality Manual.
         (a)   Determination of sensitive areas.
            1.   Sensitive areas include highly erodible soils, wetlands, threatened or endangered species habitat outstanding waters, impaired waters, recreational waters and surface drinking water sources.
            2.   A listing of highly erodible soils, outstanding water, impaired water, recreation water and surface drinking water sources can be found in the McCordsville Stormwater Technical Standards Manual.
            3.   If wetlands are suspected on a site, a wetland delineation should be completed in accordance with the methodology established by the U.S. Army Corps of Engineers (COE).
            4.   The presence of threatened or endangered species habitat will be determined by the Town Drainage Board and/or the Town Engineer and/or the Town Public Works Commissioner during the permit review process.
            5.   Special terms and conditions for development determined to impact or discharge to any sensitive area shall be included in the stormwater management permit.
         (b)   Determination of impact drainage areas. The Town Drainage Board is authorized, but is not required, to classify certain geographical areas as impact drainage areas. In determining impact drainage areas, the Town Drainage Board shall consider such factors as topography, soil type, capacity of existing drains and distance from adequate drainage facility.
            1.   The following areas shall be designated as impact drainage areas, unless good reason for not including them is presented to the Town Drainage Board:
               a.   A floodway or floodplain as designated by the most updated town code dealing with floodplain regulation;
               b.   Land within 75 feet of each bank of any ditch within the town’s system; and
               c.   Land within 75 feet of the centerline of any drain tile or enclosed conduit within the town’s system.
            2.   Land that does not have an adequate outlet, taking into consideration the capacity and depth of the outlet may be designated as an impact drainage area by the Town Drainage Board. Special terms and conditions for development within any impact drainage area shall be included in the stormwater management permit.
   (I)   Certification of as-built plans.
      (1)   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 Town Drainage Board for review.
      (2)   Additionally, a digital copy of the as-built plans is required in a format accepted by the Town Drainage Board and/or the Town Engineer.
      (3)   These plans shall include all pertinent data relevant to the completed storm drainage system and stormwater management facilities, and shall include:
         (a)   Pipe size and pipe material;
         (b)   Invert elevations;
         (c)   Top rim elevations;
         (d)   Pipe structure lengths;
         (e)   BMP types, dimensions and boundaries/easements;
         (f)   “As-planted” plans for BMP, as applicable;
         (g)   Data and calculations showing detention basin storage volume;
         (h)   Data and calculations showing BMP treatment capacity; and
         (i)   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 Town Drainage Board. (See certificate in McCordsville Stormwater Technical Standards Manual.)
      (4)   (a)   The property owner, developer or contractor shall be required to file a five-year maintenance bond or other acceptable guarantee with the Town Drainage Board and/or the 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 Town Drainage Board’s attorney in order to assure that the stormwater system 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 the project was done in accordance with the accepted plans, and this subchapter.
         (b)   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 Town Drainage Board and/or the Town Engineer.
      (5)   To verify that all regulated drain tiles are functioning properly, visual recordings (via closed circuit television) of the 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.
         (a)   These visual recordings will be scheduled by the Town Drainage Board and/or the Town Engineer and paid for by the developer.
         (b)   Notices shall be provided to the Town Drainage Board and/or the 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.
         (c)   Reports summarizing the results of the noted visual recordings shall be reviewed and accepted by the Town Drainage Board and/or the Town Engineer before the plat is recommended for recording and again before maintenance bond would be recommended to be released.
   (J)   Permit approval process.
Figure 1: Permit Approval Process
   (K)   Town corporate limits.
(Ord. 030805, passed - -2005)