Stormwater Management Standards Manual - Toledo Metropolitan ...

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GROUND WATER TABLE ...............................................................................................................................................143 GRADING ......................................................................................................................................................................143 GRUBBING ....................................................................................................................................................................143 HAZARDOUS SUBSTANCE..............................................................................................................................................143 HYDRIC SOIL.................................................................................................................................................................143 HYDROGRAPH...............................................................................................................................................................143 HYDROLOGY.................................................................................................................................................................143 HYDROPHYTIC VEGETATION.........................................................................................................................................143 IMPERVIOUS SURFACE ..................................................................................................................................................143 INFILTRATION ...............................................................................................................................................................144 INTENSITY-DURATION-FREQUENCY CURVE .................................................................................................................144 INVERT..........................................................................................................................................................................144 LAND DISTURBANCE.....................................................................................................................................................144 LANDSCAPE ARCHITECT ...............................................................................................................................................144 LANDSLIDE ...................................................................................................................................................................144 LARGER COMMON PLAN OF DEVELOPMENT .................................................................................................................144 LEVEL-SPREADER .........................................................................................................................................................144 LINEAR BUFFER ............................................................................................................................................................144 MANHOLE .....................................................................................................................................................................144 MANNING'S ROUGHNESS COEFFICIENT ("N") ................................................................................................................144 MITIGATION (SEE WETLAND MITIGATION) ...................................................................................................................144 MULTI-FAMILY DEVELOPMENT ....................................................................................................................................144 MAXIMUM EXTENT PRACTICABLE................................................................................................................................145 NGVD ..........................................................................................................................................................................145 NPDES.........................................................................................................................................................................145 NATURAL WATERWAY .................................................................................................................................................145 NATIONWIDE PERMIT (NWP) .......................................................................................................................................145 NON-POINT SOURCE POLLUTION...................................................................................................................................145 NON-STRUCTURAL PRACTICE........................................................................................................................................145 NOXIOUS WEED ............................................................................................................................................................145 OFF-LINE BMP .............................................................................................................................................................145 OFF-SITE DETENTION....................................................................................................................................................145 OHIO EPA GENERAL CONSTRUCTION PERMIT..............................................................................................................145 OHIO RAPID ASSESSMENT METHOD .............................................................................................................................146 ONE HUNDRED YEAR FLOOD (100-YEAR FLOOD) .........................................................................................................146 ONE HUNDRED YEAR FLOODPLAIN ..............................................................................................................................146 ORDINARY HIGH WATER MARK ...................................................................................................................................146 ORIFICE.........................................................................................................................................................................146 PEAK DISCHARGE .........................................................................................................................................................146 PERSON.........................................................................................................................................................................146 PHASING .......................................................................................................................................................................146 PLAT, PLATING PROCESS ..............................................................................................................................................146 POLLUTION ...................................................................................................................................................................146 POST-CONSTRUCTION RUNOFF CONTROL.....................................................................................................................147 POST-DEVELOPMENT ....................................................................................................................................................147 PRE-CONSTRUCTION MEETING .....................................................................................................................................147 PRELIMINARY PLAN......................................................................................................................................................147 PRETREATMENT ............................................................................................................................................................147 PROTECTED WETLAND..................................................................................................................................................147 Third Edition Stormwater Standards Manual September 2008 Page 8
PUBLIC ROAD DEVELOPMENT.......................................................................................................................................147 QUALIFIED WETLAND PROFESSIONAL ..........................................................................................................................147 RAINWATER AND LAND DEVELOPMENT MANUAL........................................................................................................147 RATIONAL FORMULA ....................................................................................................................................................147 REGULATORY FLOODPLAIN ..........................................................................................................................................147 REGULATORY FLOODWAY ............................................................................................................................................148 RELEASE RATE..............................................................................................................................................................148 RETENTION ...................................................................................................................................................................148 RETENTION BASIN ........................................................................................................................................................148 RETENTION STRUCTURE ...............................................................................................................................................148 REVERSE SLOPE PIPE ....................................................................................................................................................148 RIGHT-OF-WAY ............................................................................................................................................................148 RIPARIAN AREA ............................................................................................................................................................148 RIPARIAN LANDS ..........................................................................................................................................................148 RIPARIAN SETBACK ......................................................................................................................................................148 RIPRAP..........................................................................................................................................................................148 RISER ............................................................................................................................................................................149 RIVERINE ......................................................................................................................................................................149 RUNOFF.........................................................................................................................................................................149 RUNOFF COEFFICIENT...................................................................................................................................................149 RUSLE (REVISED UNIVERSAL SOIL LOSS EQUATION) .................................................................................................149 SEDIMENT .....................................................................................................................................................................149 SEDIMENT BASIN ..........................................................................................................................................................149 SEDIMENT POLLUTION ..................................................................................................................................................149 SEDIMENTATION ...........................................................................................................................................................149 SHEET FLOW .................................................................................................................................................................149 SHORT CIRCUITING .......................................................................................................................................................149 SLOUGHING/SLUMPING.................................................................................................................................................149 SOIL AND WATER CONSERVATION DISTRICT................................................................................................................150 SOIL CONSERVATION ....................................................................................................................................................150 SOIL DISTURBING ACTIVITY .........................................................................................................................................150 SOIL GROUP, HYDROLOGIC...........................................................................................................................................150 SOIL LOSS .....................................................................................................................................................................150 SPECIAL FLOOD HAZARD AREA (SFHA) ......................................................................................................................150 SPILLWAY .....................................................................................................................................................................150 SOURCE CONTROLS.......................................................................................................................................................150 STABILIZATION .............................................................................................................................................................150 STORM DRAIN...............................................................................................................................................................150 STORMWATER MANAGEMENT.......................................................................................................................................150 STORMWATER QUALITY TREATMENT...........................................................................................................................150 STORMWATER RUNOFF .................................................................................................................................................151 STORMWATER STANDARDS MANUAL ...........................................................................................................................151 STORMWATER WETLAND..............................................................................................................................................151 STREAM ........................................................................................................................................................................151 STRUCTURAL CONTROLS ..............................................................................................................................................151 SUBSOIL........................................................................................................................................................................151 SUBSTANTIAL IMPROVEMENT .......................................................................................................................................151 SWALE ..........................................................................................................................................................................151 SWPPP (STORMWATER POLLUTION PREVENTION PLAN) .............................................................................................151 Third Edition Stormwater Standards Manual September 2008 Page 9
Page 2 and 3: TMACOG STORMWATER MANAGEMENT STANDA
Page 4 and 5: 3.5.3 Drainage Structure Location .
Page 6 and 7: 8.2.2 Regulatory Floodway..........
Page 10 and 11: TN ................................
Page 12 and 13: Flow Around Ends ..................
Page 14 and 15: FIGURES Figure 1-1 Effects of Urban
Page 16 and 17: Executive Summary The Stormwater Co
Page 18 and 19: Chapter 8: Regulatory Floodplain an
Page 20 and 21: has taken 30 years to start to iden
Page 22 and 23: 1.3.1 Changes in Watershed Hydrolog
Page 24 and 25: A well-designed plan requires consi
Page 26 and 27: 1.5.1 Nonstructural Controls Nonstr
Page 28 and 29: CHAPTER 2 - Stormwater Management S
Page 30 and 31: applications. These regulations are
Page 32 and 33: • Description of how the Runoff R
Page 34 and 35: Lucas County Lucas County Engineer
Page 36 and 37: Township of Richfield 3951 Washburn
Page 38 and 39: CHAPTER 3 - RUNOFF REDUCTION HIERAR
Page 40 and 41: keeping stormwater pollution out of
Page 42 and 43: Schueler, T. R., Site Planning for
Page 44 and 45: Rainfall Intensities in Inches/Hour
Page 46 and 47: f. HEC-RAS used for FEMA Studies 3.
Page 48 and 49: 3.5.2 Capacity Storm sewers should
Page 50 and 51: a. All materials should be of such
Page 52 and 53: 4.1.1 Exclusions: Activities that a
Page 54 and 55: • Total area of the site and the
Page 56 and 57: stabilization, vegetative buffer st
Page 58 and 59:
The sediment settling pond volume c
Page 60 and 61:
for roads or utilities), the projec
Page 62 and 63:
SWP3 is adequate, or whether additi
Page 64 and 65:
work best in gently sloping areas (
Page 66 and 67:
function by slowing runoff velociti
Page 68 and 69:
Sand filtration systems are most be
Page 70 and 71:
limited to a height of 18 inches. T
Page 72 and 73:
Example of a Perimeter Sand Filter
Page 74 and 75:
5.3 Runoff Treatment 5.3.1 Bioreten
Page 76 and 77:
Site Applicability Bioretention is
Page 78 and 79:
Introducing Runoff Runoff must be i
Page 80 and 81:
Plan View Of A Bioretention Cell Fi
Page 82 and 83:
Underdrain Gravel Underdrain gravel
Page 84 and 85:
Type Botanical Name Common Name F T
Page 86 and 87:
• The cell is draining properly a
Page 88 and 89:
General Applicability Land Area Con
Page 90 and 91:
energy of the inflow. Stone riprap
Page 92 and 93:
Maintenance Maintenance Agreement A
Page 94 and 95:
5.3.3 Wet Detention Ponds Wet deten
Page 96 and 97:
Minimal Water Supply To avoid drawd
Page 98 and 99:
Sediment Removal Sediment removal i
Page 100 and 101:
5.3.4 Dry Extended Detention Basins
Page 102 and 103:
Riser Design Hoods or trash racks s
Page 104 and 105:
Example of a Dry Extended Detention
Page 106 and 107:
CHAPTER 6 - ILLICIT DISCHAGE DETECT
Page 108 and 109:
Should be the same agency as tracin
Page 110 and 111:
Sewer Conversion: Areas that were o
Page 112 and 113:
6.4.2 Dry Weather Field Screening T
Page 114 and 115:
6.5.1 Local Agency Contact Informat
Page 116 and 117:
CHAPTER 7 - Riparian Setbacks _____
Page 118 and 119:
Floodplains perform crucial roles,
Page 120 and 121:
are ecologically compatible and emp
Page 122 and 123:
yards, recycling facilities, quarri
Page 124 and 125:
8.2 Lands Subject to These Control
Page 126 and 127:
more than 1.0 foot. (Some jurisdict
Page 128 and 129:
• Be consistent with the need to
Page 130 and 131:
• Category 1 - wetlands are consi
Page 132 and 133:
eissued (extended), and revoked fro
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
Page 142 and 143:
Fill Added earth that is designed t
Page 144 and 145:
Infiltration The absorption of wate
Page 146 and 147:
Ohio Rapid Assessment Method A mult
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
Page 178 and 179:
Figure Appendix B- 9 Example of Str
Page 180 and 181:
summary of the activities the juris
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 194 and 195:
Page 196 and 197:
Page 198 and 199:
Page 200 and 201:
Page 202 and 203:
Conservation Development for Townsh
Page 204 and 205:
Page 206 and 207:
Page 208 and 209:
Conservation Development for Munici
Page 210 and 211:
Page 212 and 213:
Page 214 and 215:
Lucas County Stormwater Quality Rul
Page 216 and 217:
Sediment and Erosion Control Ordina
Page 218 and 219:
Page 220 and 221:
Page 222 and 223:
Page 224 and 225:
Page 226 and 227:
Page 228 and 229:
Page 230 and 231:
Page 232 and 233:
Page 234 and 235:
Page 236 and 237:
Page 238 and 239:
Illicit Discharge & Illegal Connect
Page 240 and 241:
Page 242 and 243:
Page 244 and 245:
Page 246:
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