Stormwater Management Standards Manual - Toledo Metropolitan ...

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Figure Appendix B- 9 Example of Stream Crossings - Temporary Stream Ford Source: Mecklenburg, Dan, Rainwater and Land Development, Second Edition, Ohio Department of Natural Resources, Division of Soil and Water Conservation, 1996. Third Edition Stormwater Standards Manual September 2008 Page 178
Appendix C: Documents Recommended for Adoption by Local Agencies ______________________________________________ This introduction is adapted from the Lucas County and 9 Joint Permittees, Stormwater Management Plan, March 1, 2003. Executive Summary Twenty-four political jurisdictions in Lucas and Wood counties are required to submit a stormwater management plan (SWMP) in accordance with 40 CFR Part 122.32 and Ohio Law. Lucas County and nine joint permittees filed a joint SWMP, and the other permittees have individual SWMPs. The SWMP outlines programs to develop, implement and enforce a stormwater management program designed to reduce the discharge of pollutants to the maximum extent practicable, to protect water quality, and to satisfy the appropriate requirements of the Clean Water Act (CWA) in accordance with the Ohio EPA Phase II program. The SWMP addresses the six minimum control measures as required by state regulations. The plan also identifies the jurisdiction’s legal authority to implement the general permit. The Notices of Intent (NOI) and SWMPs were submitted to Ohio EPA in 2003. Legal Authority Municipalities or townships will adopt ordinances or resolutions that will provide them with authority to control the amount and the quality of separate stormwater discharge to storm drainage systems. These authorities address both industrial and municipal discharges. Permit Coverage Area Each political jurisdiction of the Toledo urbanized area is responsible for developing and implementing a SWMP. The Lucas County Consortium stormwater management plan traverses seven townships and two villages within the County limits. The County has a population of 76,336 residents based on the 2000 census within townships and villages named for Phase II permit coverage, and 520 miles of County and Township Roads and numerous stormwater outfalls discharging to the waters of the state. Remaining jurisdictions submitted individual SWMPs. Reporting Requirements Each SWMP jurisdiction is required to report annually during the first term of the permit cycle; the Lucas County Consortium submits a report representing all its member jurisdictions. The report will include the status of compliance with the permit conditions, an assessment of the appropriateness of the BMPs and progress towards achieving the measurable goals for each of the six minimum control measures. A Third Edition Stormwater Standards Manual September 2008 Page 179
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TMACOG STORMWATER MANAGEMENT STANDA
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3.5.3 Drainage Structure Location .
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8.2.2 Regulatory Floodway..........
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GROUND WATER TABLE ................
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TN ................................
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Flow Around Ends ..................
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FIGURES Figure 1-1 Effects of Urban
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Executive Summary The Stormwater Co
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Chapter 8: Regulatory Floodplain an
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has taken 30 years to start to iden
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1.3.1 Changes in Watershed Hydrolog
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A well-designed plan requires consi
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1.5.1 Nonstructural Controls Nonstr
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CHAPTER 2 - Stormwater Management S
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applications. These regulations are
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• Description of how the Runoff R
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Lucas County Lucas County Engineer
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Township of Richfield 3951 Washburn
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CHAPTER 3 - RUNOFF REDUCTION HIERAR
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keeping stormwater pollution out of
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Schueler, T. R., Site Planning for
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Rainfall Intensities in Inches/Hour
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f. HEC-RAS used for FEMA Studies 3.
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3.5.2 Capacity Storm sewers should
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a. All materials should be of such
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4.1.1 Exclusions: Activities that a
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• Total area of the site and the
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stabilization, vegetative buffer st
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The sediment settling pond volume c
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for roads or utilities), the projec
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SWP3 is adequate, or whether additi
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work best in gently sloping areas (
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function by slowing runoff velociti
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Sand filtration systems are most be
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limited to a height of 18 inches. T
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Example of a Perimeter Sand Filter
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5.3 Runoff Treatment 5.3.1 Bioreten
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Site Applicability Bioretention is
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Introducing Runoff Runoff must be i
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Plan View Of A Bioretention Cell Fi
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Underdrain Gravel Underdrain gravel
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Type Botanical Name Common Name F T
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• The cell is draining properly a
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General Applicability Land Area Con
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energy of the inflow. Stone riprap
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Maintenance Maintenance Agreement A
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5.3.3 Wet Detention Ponds Wet deten
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Minimal Water Supply To avoid drawd
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Sediment Removal Sediment removal i
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5.3.4 Dry Extended Detention Basins
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Riser Design Hoods or trash racks s
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Example of a Dry Extended Detention
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CHAPTER 6 - ILLICIT DISCHAGE DETECT
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Should be the same agency as tracin
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Sewer Conversion: Areas that were o
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6.4.2 Dry Weather Field Screening T
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6.5.1 Local Agency Contact Informat
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CHAPTER 7 - Riparian Setbacks _____
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Floodplains perform crucial roles,
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are ecologically compatible and emp
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yards, recycling facilities, quarri
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8.2 Lands Subject to These Control
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more than 1.0 foot. (Some jurisdict
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Page 134 and 135: Oak Openings Region Boundary Figure
Page 136 and 137: Authorized representatives of local
Page 138 and 139: Base Flood The flood having one per
Page 140 and 141: 1. Dry Detention Basin A basin that
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Page 144 and 145: Infiltration The absorption of wate
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Page 148 and 149: Regulatory Floodway The channel and
Page 150 and 151: Soil and Water Conservation Distric
Page 152 and 153: Temporary Soil Erosion and Sediment
Page 154 and 155: Appendix B: Best Management Practic
Page 156 and 157: Example of Matting Installation Fig
Page 158 and 159: Description Applying a protective l
Page 160 and 161: 6. Permanent Seeding Description Pe
Page 162 and 163: Design Guidelines Site Preparation
Page 164 and 165: Example of a Sediment Trap Figure A
Page 166 and 167: Safety Sediment basins shall be con
Page 168 and 169: Example of a Sediment Basin Figure
Page 170 and 171: Example of Silt Fence Installation
Page 172 and 173: Examples of Inlet Protection Techni
Page 174 and 175: Example of Construction Entrance Fi
Page 176 and 177: Maintenance Mud spilled, dropped, w
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Page 182 and 183: Riparian Resolution for Township RI
Page 184 and 185: Riparian Resolution for Township SE
Page 186 and 187: Riparian Resolution for Township 26
Page 188 and 189: Riparian Resolution for Township 1.
Page 190 and 191: Riparian Resolution for Township ap
Page 192 and 193: Riparian Resolution for Municipalit
Page 202 and 203: Conservation Development for Townsh
Page 208 and 209: Conservation Development for Munici
Page 214 and 215: Lucas County Stormwater Quality Rul
Page 216 and 217: Sediment and Erosion Control Ordina
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Sediment and Erosion Control Ordina
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Illicit Discharge & Illegal Connect
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