Stormwater.

Indianapolis-Marion County Revised Code § 741-311

in effect

Sec. 741-311. - Stormwater. A. Drainage facilities are to be designed and constructed to meet the stormwater quality and quantity standards established in the City of Indianapolis Stormwater Design and Construction Specifications Manual. B. Major subdivisions in the Metro Context Area shall meet the stormwater quality and quantity standards using low-impact development and/or green infrastructure techniques. C. For projects where low-impact development and/or green infrastructure techniques are technically infeasible to meet stormwater quantity standards, the applicant shall provide a justification demonstrating why the use of these techniques is not possible. Documentation of technical infeasibility shall include engineering calculations, geologic reports, hydrologic analyses, and site maps. D. Drainage facilities constructed using low-impact development techniques may be adjacent or abutting or in conjunction with a required open space common area component as indicated in Table 741-310-2, however such facilities shall only be counted with one open space common area component. E. All BMPs must be located within an easement. The easement must include access from the public right-of-way to the BMP for inspection and maintenance. The purpose of each easement shall be specified in the maintenance agreement. A copy of the easement should be included in the Operations and Maintenance Manual required by the Stormwater Design and Construction Specifications Manual. F. Maintenance improvements. Facilities providing for the proper on-going maintenance of any drainage facility shall be provided. Signs indicating no-mow areas, fence demarcating boundaries of natural areas, species and informational markers, and grate markings are examples of such improvements. G. The responsibility of maintenance of drainage facilities shall be as set forth by Section 561-211. "Inspection and Maintenance of drainage facilities" of the Revised Code of the Consolidated City and County. Maintenance access shall be provided to drainage facility as set forth to assure continuous operational capacity of the drainage facility. Inspections and maintenance is the responsibility of the owner. Specific guidelines for maintenance can be found in the Stormwater Design and Construction Specifications Manual Chapter 100 Policy and Procedures and Chapter 700 Stormwater Quality. H. Erosion control provisions shall be provided in accordance with Chapter 561 of the Revised Code of the Consolidated City and County and Chapter 600 Erosion and Sediment Control of Stormwater Design and Construction Specifications Manual. I. Class V injection wells, as defined in 40 CFR 146, Underground Injection Well Program shall be registered with the USEPA. (G.O. 64, 2015, § 2; G.O. 17, 2022, § 1; G.O. 33, 2023, § 12; G.O. 23, 2026, § 5)

Source: Consolidated City of Indianapolis and Marion County, Revised Code (Municode Library, library.municode.com)URL: https://library.municode.com/in/indianapolis_-_marion_county/codes/code_of_ordinances?nodeId=TITIIIPUHEWE_CH741SURE_ARTIIIDEINST_S741-311STFetched: 10/27/2026