§ 56.072 CALCULATIONS, DESIGN STANDARDS AND SPECIFICATIONS.

   (A)   Calculation of land disturbance should follow the guidelines discussed in § 56.057.

   (B)   The calculation methods as well as the type, sizing and placement of all stormwater quality management measures, or BMPs, shall meet the design criteria, standards and specifications outlined in the City of Lebanon Stormwater Technical Standards Manual. The methods and procedures included in this reference are in keeping with the above stated policy and meet the requirements of IDEM’s Rule 13.

(Ord. 06-15, passed 11-13-2006; Ord. 2015-01, passed 1-26-2015)

§ 56.073 EASEMENT REQUIREMENTS.

   All stormwater quality management systems, including detention or retention basins, filter strips, pocket wetlands, in-line fitters, infiltration systems, conveyances, systems, structures and appurtenances located outside of the right-of-way shall be incorporated into permanent easements.

(Ord. 06-15, passed 11-13-2006; Ord. 2015-01, passed 1-26-2015)

§ 56.074 INSPECTION, MAINTENANCE, RECORD KEEPING AND REPORTING.

   (A)   After the approval of the stormwater management permit by the city and the commencement of construction activities, the city has the authority to conduct inspections of the work being done to ensure full compliance with the provisions of this section, the drainage and the terms and conditions of the approved permit.

   (B)   Stormwater quality facilities shall be maintained in good condition, in accordance with the operation and maintenance procedures and schedules listed in the City of Lebanon Stormwater Technical Standards Manual and the terms and conditions of the approved stormwater permit, and shall not be subsequently altered, revised or replaced except in accordance with the approved stormwater permit, or in accordance with approved amendments or revisions in the permit. Following construction completion, inspection and maintenance of stormwater quality facilities shall be the long-term responsibility of the property owner. Assignment of responsibility for maintaining stormwater quality facilities serving more than one lot or holding shall be documented by appropriate covenants to property deeds, unless responsibility is formally accepted by a public body, and determined before the final stormwater permit is approved. Stormwater detention/retention basins may be donated to the city, for ownership and permanent maintenance providing the city or other governmental unit is willing to accept responsibility.

   (C)   All public and privately owned stormwater quality facilities will be inspected by representatives of the project site owner no less than once a year until the project is complete and the property changes hands. At that point, the property owner assumes responsibility for having annual inspections of the stormwater quality facilities completed. The inspections shall be completed by an inspector, approved by the city, and will follow the operation and maintenance procedures included in the City of Lebanon Stormwater Technical Standards Manual and/or permit application for each specific BMP. The inspection will cover physical conditions, available water quality storage capacity and the operational condition of key facility elements. Noted deficiencies and recommended corrective action will be included in an inspection report. A copy of each inspection report will bo provided to the city. If deficiencies are found during the inspection, the owner of the stormwater quality facility will be required to take all necessary measures to correct the deficiencies within 180 days. If the owner fails to correct the deficiencies within the allowed time period, the city will undertake the work and collect from the owner using lien rights, if necessary.

(Ord. 06-15, passed 11-13-2006; Ord. 2015-01, passed 1-26-2015)

PERMIT REQUIREMENTS AND PROCEDURES

§ 56.085 PRELIMINARY DRAINAGE APPROVALS.

   In order to gain an understanding of the drainage requirements for a specific project, a developer may submit preliminary drainage plans and calculations, certified by a licensed professional engineer or a licensed land surveyor registered in the state for review by the city. A preliminary drainage approval must be obtained prior to preliminary plat approval for subdivisions. The direction provided by the city during a review is based on preliminary data and shall not be construed as an approval or binding on either party. The following is a general listing of minimum data requirements for the review of preliminary drainage plans:

   (A)   Two complete sets of plans;

   (B)   Drainage narrative;

   (C)   Watershed boundaries with USGS contours or best information possible;

   (D)   Existing and proposed regulated drains;

   (E)   Drainage calculations to support narrative:

      (1)   Existing and proposed run-off;

      (2)   Existing and proposed curve number;

      (3)   Existing and proposed time of concentration; and

      (4)   Upstream and downstream restrictions.

   (F)   Letter of intent for obtaining any needed consents, off-site easements or right-of-way;

   (G)   Topographic map of the project with layout; and

   (H)   Possible advance payment of the city’s professional fees incurred or to be incurred for the review of the plans.

(Ord. 06-15, passed 11-13-2006; Ord. 2015-01, passed 1-26-2015)

§ 56.086 PERMIT PROCEDURES.

   This subchapter applies to all development or redevelopment of land that results in land disturbance of 10,000 square feet or more. Individual lots with land disturbance less than 10,000 square feet that are developed within a larger permitted project site should refer to §§ 56.055 through 56.058 for plan review requirements and procedures.

(Ord. 06-15, passed 11-13-2006; Ord. 2015-01, passed 1-26-2015)

§ 56.087 INFORMATION REQUIREMENTS.

   (A)   Generally.  Specific projects or activities may be exempt from all or part of the informational requirements listed below. Exemptions are detailed in §§ 56.020 and 56.070. If a project or activity is exempt from any or all requirements of this chapter, 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 10,000 square feet of land, developed within a larger permitted project site. Review and approval of the lots is covered under § 56.088.

   (B)   Elements of permit submittal.  The different elements of a permit submittal include a draft 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 of Indiana.

   (C)   Draft notice of intent.

      (1)   The NOI is a standard form developed by IDEM which requires general project information. As part of the city stormwater management permit application package, the NOI form should be completed in full based on data and information available at the time of application.

      (2)   An updated version of this form, 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, will need to be resubmitted later after the stormwater management permit is granted and at least 48 hours prior to commencement of construction. The publication must include the following language:

         (Company name, address) is submitting an NOI letter to notify the city and the State Department of Environmental Management of our intent to comply with the requirements of the city stormwater code, 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). Run-off from the project site will discharge to (stream(s) receiving the discharge(s)).

   (D)   Construction plans.  Construction plan sheets and an accompanying narrative report shall describe and depict the existing and proposed conditions. Note that in order to gain an understanding of and to evaluate the relationship between the proposed improvements for a specific project section/phase and the proposed improvements for an overall multi-section (phased) project, the detailed information requested herein for the first section/phase being permitted must be accompanied by an overall project plan that includes the location, dimensions, and supporting analyses of all detention/retention facilities, primary conveyance facilities, and outlet conditions. Construction plans need to include items listed in the application checklist provided in the City of Lebanon Stormwater Technical Standards Manual.

   (E)   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. Note that in order to gain an understanding of and to evaluate the relationship between the proposed improvements for a specified project section/phase and the proposed improvements for an overall multi-section (phased) project, the detailed information requested herein for the first section/phase being permitted must be accompanied by an overall project plan that includes the location, dimensions, and supporting analyses of all detention/retention facilities, primary conveyance facilities, and outlet conditions. The technical report needs to include items listed in the application checklist provided in the City of Lebanon Stormwater Technical Standards Manual.

   (F)   Stormwater pollution prevention plan for construction sites.  For sites with total disturbance of one acre or more, a stormwater pollution prevention plan associated with construction activities must be designed to, at least, meet the requirements of this chapter. The SWPPP and construction plans must include the items listed in the application checklist provided in the City of Lebanon Stormwater Technical Standards Manual. For land disturbances totaling 10,000 square feet or more of land area but less than one acre, appropriate erosion and sediment control measures that are consistent with the City of Lebanon Technical Standards Manual must be designed and shown on the plans.

   (G)   Post-construction stormwater pollution prevention plan. For sites with total land disturbance of 10,000 square feet or more of total land area, a post-construction stormwater pollution prevention plan must be designed to, at least, meet the requirements of this chapter and must include the information provided in the City of Lebanon Stormwater Technical Standards Manual. The post- construction storm water pollution prevention plan must include items listed in the application checklist provided in the City of Lebanon Stormwater Technical Standards Manual.

(Ord. 06-15, passed 11-13-2006; Ord. 2015-01, passed 1-26-2015)

§ 56.088 REVIEW OF INDIVIDUAL LOTS WITHIN A PERMITTED PROJECT.

   (A)   Although no permit is required for individual lots disturbing less than 10,000 square feet of land, developed within a larger permitted project, a formal stormwater review will be required before a building permit can be issued. All stormwater management measures necessary to comply with this chapter must be implemented in accordance with permitted plan for the larger project.

   (B)   The following information must be submitted to the city, for review and approval, by the individual lot operator, whether owning the property or acting as the agent of the property owner, prior to the issuance of a building permit:

      (1)   A site layout for the subject lot and all adjacent lots showing building pad location, dimensions and elevations and the drainage patterns and swales;

      (2)   Erosion and sediment control plan that, at a minimum, includes the following measures:

         (a)   Installation and maintenance of a stable construction site access;

         (b)   Installation and maintenance of appropriate perimeter erosion and sediment control measures prior to land disturbance;

         (c)   Minimization of sediment discharge and tracking from the lot;

         (d)   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 and rules;

         (e)   Adjacent lots disturbed by an individual lot operator must be repaired and stabilized with temporary or permanent surface stabilization; and

         (f)   Self-monitoring program including plan and procedures.

      (3)   Certification of compliance stating that the individual lot plan is consistent with the stormwater management permit, as approved by the city, for the larger project.

   (C)   The individual lot operator is responsible for installation and maintenance of all erosion and sediment control measures until the site is stabilized.

(Ord. 06-15, passed 11-13-2006; Ord. 2015-01, passed 1-26-2015)