Watershed Management Ordinance Effective May 1, 2014 As amended May 16, 2019 [This page is intentionally blank.] METROPOLITAN WATER RECLAMATION DISTRICT OF GREATER CHICAGO 100 EAST ERIE STREET CHICAGO, ILLINOIS 60611 (312) 751-5600 BOARD OF COMMISSIONERS Hon. Kari K. Steele, President Hon. Barbara J. McGowan, Vice President Hon. Frank Avila, Chairman of Finance Hon. Cameron Davis Hon. Kimberly Du Buclet Hon. Marcelino Garcia Hon. Josina Morita Hon. Debra Shore Hon. Mariyana T. Spyropoulos OFFICERS Brian A. Perkovich, Executive Director Mary Ann Boyle, Treasurer Darlene A. LoCascio, Director of Procurement and Materials Management Susan T. Morakalis, General Counsel John P. Murray, Director of Maintenance and Operations Catherine O’Connor, Ph.D., Director of Engineering Edward Podczerwinski, Director of Monitoring and Research Beverly K. Sanders, Director of Human Resources John Sudduth, Director of Information Technology Jacqueline Torres, Clerk/Director of Finance Board of Commissioners and Officers listed as of the date of amendment – May 16, 2019 AN ORDINANCE AN ORDINANCE HEREINAFTER KNOWN AS THE “WATERSHED MANAGEMENT ORDINANCE,” ADOPTED BY THE BOARD OF COMMISSIONERS, METROPOLITAN WATER RECLAMATION DISTRICT OF GREATER CHICAGO, ON OCTOBER 3, 2013 AND AS AMENDED TO, AND INCLUDING, APRIL 17, 2014, MAY 1, 2014, JULY 10, 2014, FEBRUARY 15, 2018, APRIL 4, 2019, AND MAY 16, 2019. [This page is intentionally blank.] Table of Contents ARTICLE 1. AUTHORITY AND PURPOSE ............................................................................................. 1-1 § 100. Statutory Authority ........................................................................................................................ 1-1 § 101. Cook County Stormwater Management Plan ................................................................................ 1-1 § 102. Considerations................................................................................................................................ 1-1 § 103. Purposes of this Ordinance ............................................................................................................ 1-2 § 104. Relationship to the Sewer Permit Ordinance and Manual of Procedures ..................................... 1-4 ARTICLE 2. APPLICABILITY AND GENERAL PROVISIONS ..................................................................... 2-1 § 200. Scope of Regulation ....................................................................................................................... 2-1 § 201. Applicability .................................................................................................................................... 2-2 § 202. Interpretation ................................................................................................................................. 2-5 § 203. Disclaimer of Liability ..................................................................................................................... 2-5 § 204. Severability ..................................................................................................................................... 2-5 § 205. Right of Access ............................................................................................................................... 2-6 § 206. National Flood Insurance Program Eligibility ................................................................................. 2-6 § 207. Multi-County Municipalities ........................................................................................................... 2-6 § 208. Study of Current Provisions of and Potential Amendments to this Ordinance ............................. 2-7 § 209. Amendments .................................................................................................................................. 2-8 § 210. Effective Date ................................................................................................................................. 2-8 ARTICLE 3. WATERSHED MANAGEMENT PERMIT REQUIREMENTS AND SUBMITTALS ........................ 3-1 § 300. General Requirements and Limitation ........................................................................................... 3-1 § 301. Permit Fees ..................................................................................................................................... 3-2 § 302. Watershed Management Permit Application Submittal ................................................................ 3-3 § 303. Plan Set and Exhibits Submittal ...................................................................................................... 3-7 § 304. Terms of Permit/Denial - Appeal ................................................................................................. 3-10 § 305. Construction Timeline Requirements and Approval of Plan Revisions ........................................ 3-10 § 306. Record Drawings .......................................................................................................................... 3-11 § 307. Recordation and Obligations of a Watershed Management Permit ........................................... 3-11 ARTICLE 4. REQUIREMENTS FOR EROSION AND SEDIMENT CONTROL ............................................... 4-1 § 400. Erosion and Sediment Control General Requirements .................................................................. 4-1 § 401. Temporary Erosion and Sediment Control Requirements ............................................................. 4-1 § 402. Permanent Erosion Control Requirements .................................................................................... 4-4 ARTICLE 5. REQUIREMENTS FOR STORMWATER MANAGEMENT ...................................................... 5-1 § 500. General Site Development and Stormwater Management Information ....................................... 5-1 § 501. General Site Development and Stormwater Management Requirements.................................... 5-1 § 502. Runoff Requirements ..................................................................................................................... 5-2 § 503. Volume Control Requirements....................................................................................................... 5-5 § 504. Detention Requirements ................................................................................................................ 5-8 § 505. Development and Redevelopment Tributary to Existing Detention Facilities ............................. 5-13 ARTICLE 6. REQUIREMENTS FOR FLOOD PROTECTION AREAS ........................................................... 6-1 § 600. Flood Protection Areas ................................................................................................................... 6-1 § 601. Requirements for Floodplain, Floodway, and Flood Protection Elevation Determination ............ 6-1 § 602. Requirements for Development within the Floodplain ................................................................. 6-3 § 603. Requirements for Wetland Boundary, Quality, and Buffer Width Determination ........................ 6-7 § 604. Requirements for Development Affecting the Function of Wetlands and Wetland Buffers ....... 6-10 § 605. Wetland Banking .......................................................................................................................... 6-15 § 606. Riparian Environments Requirements ......................................................................................... 6-15 § 607. Requirements for Development Affecting the Function of Riparian Environments .................... 6-17 ARTICLE 7. REQUIREMENTS FOR SEWER CONSTRUCTION ................................................................. 7-1 § 700. General Sewer Construction Requirements ................................................................................... 7-1 § 701. Qualified Sewer Construction ........................................................................................................ 7-2 § 702. Qualified Sewer Construction Requirements ................................................................................. 7-3 ARTICLE 8. INFILTRATION / INFLOW CONTROL PROGRAM ................................................................ 8-1 § 800. Introduction ................................................................................................................................... 8-1 § 801. Scope and Goals ............................................................................................................................. 8-1 § 802. Applicability .................................................................................................................................... 8-2 § 803. General Requirements ................................................................................................................... 8-2 § 804. Short Term Requirements .............................................................................................................. 8-2 § 805. Long Term O&M Program .............................................................................................................. 8-4 § 806. Annual Reporting ........................................................................................................................... 8-5 § 807. Non-Compliance ............................................................................................................................. 8-6 § 808.