Calumet City Zoning Code
STORM WATER
MANAGEMENT
§ 153.140 INTENT; PURPOSE.
The purpose of this subchapter is to provide adequate measures for the retention, detention and distribution of storm water in a manner that minimizes the possibility of adverse impacts on both water quantity and water quality during development, as well as adverse impacts on neighboring properties.
(Ord. 160, passed 4-21-2022)
§ 153.141 APPLICABILITY.
No development requiring a site plan review in this chapter shall take place except in conformity with an approved storm water management plan.
(Ord. 160, passed 4-21-2022) Penalty, see § 153.999
§ 153.142 STORM WATER MANAGEMENT FACILITIES.
(A) Level of service standard. Storm water detention shall mitigate peak flow rates to predevelopment or existing development conditions.
(B) Grading. No premises shall be filled or graded so as to discharge surface runoff onto abutting premises or in such a manner that will cause inconvenience or damage to adjacent properties. When property is developed adjacent to existing properties previously developed, existing grades have priority.
(C) Storm sewer system.
(1) No development shall be allowed to discharge storm water runoff into the municipal storm sewer system unless approved by the North Houghton County Sewer Authority.
(2) Where storm water runoff will be direct to the municipal storm sewer system, the use of pre-treatment structures such as oil-water separators shall be required.
(D) Low impact development storm water management.
(1) All projects not approved to discharge storm water runoff into the municipal storm sewer system shall incorporate low impact development (LID) water quality technologies to manage storm water onsite.
(2) LID water quality technologies shall include, but are not limited to, rain gardens, green roofs, vegetated swales, cisterns, permeable pavers, porous pavement and filtered storm water structures, and will be required on-site as a component of the overall storm water plan.
(3) The Planning Commission shall have the authority to approve the type of LID that will be used as part of the site plan review process.
(E) Maintenance. On-site detention facilities shall be privately owned and shall be maintained in their designed state. A maintenance schedule may be required by the village prior to approval of a site plan.
(Ord. 160, passed 4-21-2022) Penalty, see § 153.999