(A) 
Projects subject to this section are the same per the applicability and exemption criteria for construction sites described in AMC § 13.15.600(A) and (B). Additional exemptions under this section include:
(1) 
Land-disturbing activities where there will be no additional impervious surfaces associated with the final completed project, including, but not limited to, ditch construction/reconstruction and utility installation/maintenance activities.
(2) 
Single-family residential strip development offered for sale or lease without land improvements and the project is not part of a larger common plan of development or sale.
(3) 
Residential developments consisting of four or fewer lots of developments where the proposed impervious surfaces are 10 percent or less of the project acreage. Imperviousness is determined by the sum of all infrastructure (roads, paths, parking, etc.) and the average project's hard surfaces associated with all building lots within the project.
(Ord. 1751-2024)
(A) 
Developed areas, as compared to undeveloped areas, generally have increased imperviousness, decreased infiltration rates, increased runoff rates, and increased concentrations of pollutants such as fertilizers, herbicides, greases, oil, salts and other pollutants. As new development and redevelopment continues in Angola, measures must be taken to promote runoff volume reduction, infiltrate stormwater into the ground and intercept and filter pollutants from stormwater runoff prior to reaching regional creeks, streams, rivers and wetlands. Using BMPs, harmful amounts of sediment, nutrients, and contaminants will be removed from stormwater runoff.
(B) 
Stormwater quality measures are incorporated as a permanent feature into construction projects and are left in place following completion of construction activities to continuously treat stormwater runoff from the stabilized site. The following will be implemented as a minimum:
(1) 
The control of stormwater quality will be based on the management of total suspended solids (TSS). The City of Angola requires a minimum of 80 percent removal of TSS including floatables without resuspension. "TSS" is defined as particles smaller than 125 microns in diameter.
(2) 
New retail gasoline outlets and refueling areas or those that replace their existing tank systems, regardless of size, are required to install appropriate measures to reduce lead, copper, zinc, and polyaromatic hydrocarbons in stormwater runoff.
(3) 
Infiltration practices will not be allowed in wellhead protection areas as the primary water quality treatment measure, unless the measure is designed to treat the pollutant(s) of concern that originate in the drainage area of the measure.
(4) 
Discharges from new development and redevelopment sites will not be allowed directly into karst features without pre-treatment.
(5) 
Outfalls must be designed to reduce outfall scouring and bank erosion.
(Ord. 1751-2024)
(A) 
Calculation of land disturbance should follow the guidelines discussed in the City of Angola Stormwater Technical Standards Manual.
(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 Indiana Stormwater Quality Manual or the City of Angola Stormwater Technical Standards Manual. The methods and procedures included in these two references are in keeping with the above-stated policy and meet the requirements of IDEM's CSGP and MS4GP.
(C) 
A pre-approved list of BMP(s) is specified in the City of Angola Stormwater Technical Standards Manual. The noted BMPs must be designed, constructed, and maintained according to guidelines provided or referenced in the City of Angola Stormwater Technical Standards Manual. Practices other than those specified in the pre-approved list may be utilized. However, the burden of proof, as to whether the performance (minimum 80 percent TSS removal) and ease of maintenance of such practices will be according to guidelines provided in the City of Angola Stormwater Technical Standards Manual, would be placed with the applicant. Details regarding the procedures and criteria for consideration of acceptance of such BMPs are provided in the City of Angola Stormwater Technical Standards Manual.
(Ord. 1751-2024)
All stormwater quality management systems, including detention or retention basins, filter strips, pocket wetlands, in-line filters, infiltration systems, conveyance systems, structures and appurtenances located outside of the right-of-way, shall be incorporated into permanent easements. For the purposes of monitoring, inspection, and general maintenance activities, adequate easement width, as detailed in the City of Angola Stormwater Technical Standards Manual, beyond the actual footprint of the stormwater quality management facility as well as a 20-foot-wide or alternate width as approved by the City Engineer, access easement from a public right-of-way to each BMP shall be provided.
(Ord. 1751-2024)
(A) 
Design plans, technical information, and the SWPPP with post-construction stormwater quality measures shall be submitted per the application process in AMC § 13.15.300 et seq. The post-construction SWPPP shall include the requirements identified in the City of Angola Stormwater Technical Standards Manual.
(B) 
It will be the responsibility of the project site owner to ensure proper construction and installation of all stormwater BMPs in compliance with this chapter, the City of Angola Stormwater Technical Standards Manual, the terms and conditions of the approved site improvement permit, and CSGP.
(C) 
The project site owner and the City of Angola will execute a stormwater management/BMP facilities agreement as a condition of approval for the project site owner's stormwater pollution prevention plan. The standard agreement forms are available from the City of Angola Municipal Separate Storm Sewer System (MS4) Coordinator. The forms shall be executed by the project site owner and submitted with the stormwater pollution prevention plan. The signed and approved agreement shall be recorded with the property by the County Recorder's office. The cost of recordation will be billed to project site owner.
(Ord. 1774-2025 § 1; Ord. 1751-2024)
(A) 
Inspection by the City of Angola.
(1) 
After the approval of the site improvement permit by the City of Angola and the commencement of construction activities, the City of Angola has the authority to conduct inspections of the work being done to ensure full compliance with the provisions of this chapter, the Stormwater Technical Standards, and the terms and conditions of the CSGP.
(2) 
The City of Angola has the authority to perform or require inspections of all public or privately owned stormwater quality facilities.
(B) 
Owner Operation and Maintenance.
(1) 
An O&M manual shall be prepared and submitted for approval in accordance with AMC § 13.15.330 and must include the required information detailed in the City of Angola Stormwater Technical Standards Manual. The signed and approved O&M Manual shall be recorded with the property by the County Recorder's office. The cost of recordation will be billed to project site owner.
(2) 
Following construction completion, the operation, maintenance, and inspection of stormwater quality BMPs shall be the long-term responsibility of the owner of the stormwater quality BMP.
(3) 
Stormwater quality facilities shall be maintained in good condition, in accordance with the operation and maintenance manual approved under the site improvement permit, and shall not be subsequently altered, revised or replaced without the approval of the City of Angola.
(4) 
The owner of stormwater quality facilities shall be responsible for inspections that evaluate physical conditions, available treatment capacity, and the operational condition of the stormwater quality BMP(s) in accordance with the O&M manual. Requirements of the O&M manual shall not be altered without approval from the City of Angola.
(5) 
If deficiencies are found during an inspection by the City of Angola, the owner of the facility will be notified by the City of Angola and will be required to take all necessary measures to correct such deficiencies. If the owner fails to correct the deficiencies within the allowed time period, as specified in the notification letter, the City of Angola will undertake the work and collect from the owner using lien rights if necessary.
(C) 
Inspection reports and documentation records must be maintained by the owner for a period of five years and produced upon request by City of Angola personnel within 48 hours of the request.
(Ord. 1774-2025 § 2; Ord. 1751-2024)