Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My Public Portal
About
00-toc_0
THE METROPOLITAN ST, LOUIS SEWER DISTRICT Iv' SI' RULES AND REGULATIONS AND ENGINEERING DESIGN REQUIREMENTS FOR SANITARY SEWER AND STORMWATER DRAINAGE FACILITIES FEBRUARY 2006 Revised 2/15/2015 2 RULES AND REGULATIONS AND ENGINEERING DESIGN REQUIREMENTS FOR SANITARY SEWER AND STORMWATER DRAINAGE FACILITIES FEBRUARY 2006 TABLE OF CONTENTS 1. GENERAL .............................................................................................................................................................. 10 1.010 Projects Requiring Review By the District............................................................................................... 10 1.020 Regulations Governing the Use of Public and Private Sewerage Facilities ........................................... 10 1.020.01 Unlawful Discharges and Sewage Disposal ...................................................................................... 10 1.020.02 Public Sewer Available ....................................................................................................................... 10 1.020.03 Public Sewer Not Available ................................................................................................................ 10 1.020.04 Prohibited Discharges and Waste Disposal Into Sanitary Sewers .................................................. 11 1.020.05 Wastes Having Excessive Biochemical Oxygen Demand (B.O.D.), ................................................. 11 1.020.06 Measurements, Tests or Analyses ...................................................................................................... 12 1.020.07 Furnishing Records ............................................................................................................................. 12 1.030 Submission, Review and Approval of Plans and Specifications ............................................................... 12 1.040 Procedures..................................................................................................................................................... 13 1.040.01 Preliminary Conferences .................................................................................................................... 13 1.040.02 Required Submittals by the Engineer ............................................................................................... 13 1.040.03 Subdivisions ......................................................................................................................................... 14 1.040.04 Projects Normally Requiring a Sewer Connection - Permit Only .................................................. 14 1.040.05 Return of Plans Without Review ....................................................................................................... 15 1.040.06 Return of Plans for Revision .............................................................................................................. 15 1.040.07 Failure to Revise or Correct Plans Promptly ................................................................................... 15 1.040.08 Fees for Review ................................................................................................................................... 15 1.050 Plan Requirements ....................................................................................................................................... 15 1.050.01 Drawing Sizes ...................................................................................................................................... 15 1.050.02 Plans Submitted Shall Include: .......................................................................................................... 15 1.060 Storm Drainage Design Data, Maps and Computation ............................................................................. 16 1.060.01 General Criteria:................................................................................................................................. 16 1.060.02 Basic Design Data To Include: ........................................................................................................... 17 1.070 Sanitary Sewer Design Data, Maps and Computations ............................................................................ 17 1.070.01 General Criteria:................................................................................................................................. 17 1.070.02 Basic Design Data To Consider: ........................................................................................................ 17 2. DEFINITIONS ....................................................................................................................................................... 18 3. DESIGN REQUIREMENTS FOR SANITARY SEWERS ................................................................................ 23 3.010 General .......................................................................................................................................................... 23 3.020 General Requirements of Sanitary Sewer Construction ........................................................................... 23 3.020.01 Size and Shape ..................................................................................................................................... 23 3.020.02 Materials ............................................................................................................................................. 23 Revised 2/15/2015 3 3.020.03 Bedding ................................................................................................................................................ 23 3.020.04 Pipe or Conduit Under Streets and Pavements ................................................................................ 24 3.020.05 Joints ................................................................................................................................................... 24 3.020.06 Monolithic Structures ......................................................................................................................... 24 3.020.07 Alignment ........................................................................................................................................... 24 3.020.08 Location .............................................................................................................................................. 24 3.020.09 Flowline ................................................................................................................................................ 25 3.020.10 Manholes ............................................................................................................................................. 25 3.020.11 Sewage Treatment Facilities .............................................................................................................. 26 3.030 Design Requirements .................................................................................................................................... 27 3.030.01 General................................................................................................................................................. 27 3.030.02 Gradients ............................................................................................................................................ 27 3.030.03 Depth and Minimum Cover .............................................................................................................. 27 3.030.04 Flow Design ........................................................................................................................................ 28 3.030.05 Population Factors ............................................................................................................................. 28 3.030.06 Sanitary Flow Table .......................................................................................................................... 28 3.030.07 Hydraulic Grade Line........................................................................................................................ 29 1. Hydraulic Grade Line Limits ................................................................................................................. 29 2. Computation Methods ............................................................................................................................. 29 a. Friction Loss ......................................................................................................................................... 29 b. Curve Loss ............................................................................................................................................ 30 c. Turn Loss .............................................................................................................................................. 30 d. Junction Chamber Loss ......................................................................................................................... 31 e. Losses at Junctions of Several Flows in Manholes ............................................................................... 32 f. Transition Loss ..................................................................................................................................... 33 (1) Closed Conduits ............................................................................................................................... 33 3.030.08 Infiltration .......................................................................................................................................... 34 3.030.09 Special Situations and Design Requirements ................................................................................... 34 l. Connections to Manholes ........................................................................................................................ 34 2. Adjusting Manholes to Grade................................................................................................................. 35 3. Swimming Pools ....................................................................................................................................... 35 4. Storm Sewers Crossing Over Sanitary Sewers ..................................................................................... 35 5. Location in Conjunction with Water Service ........................................................................................ 35 6. Sanitary Sampling Appurtenance .......................................................................................................... 35 7. Abandonment of Sanitary Sewer Services ............................................................................................. 36 8. Private Force Main Connections ............................................................................................................ 36 9. Oil/Gas Separators, Sand Filters, and Grease Traps............................................................................ 36 10. Coldwater Creek Gravity Elevation .................................................................................................. 37 11. Common Laterals ................................................................................................................................ 37 12. Private Lateral .................................................................................................................................... 37 13. Separate Laterals and Sewers ............................................................................................................ 37 14. Protection from Surcharging ............................................................................................................. 38 15. Residential Basement Garage Flooding ............................................................................................ 38 16. Lateral for Commercial Use ............................................................................................................... 38 3.040 Sanitary Detention Requirements ............................................................................................................... 38 3.040.01 Surcharged Sanitary Sewers ............................................................................................................. 38 4. DESIGN REQUIREMENTS FOR STORM DRAINAGE FACILITIES .......................................................... 42 4.010 General ............................................................................................................................................................. 42 4.020 General Requirements of Storm Sewer Construction .................................................................................. 42 4.020.01 Size and Shape .................................................................................................................................... 42 4.020.02 Materials ............................................................................................................................................. 42 Revised 2/15/2015 4 4.020.03 Bedding ............................................................................................................................................... 42 4.020.04 Concrete Pipe or Conduit Strengths ................................................................................................. 42 4.020.05 Monolithic Structures ......................................................................................................................... 43 4.020.06 Alignment ............................................................................................................................................ 43 4.020.07 Location .............................................................................................................................................. 43 4.020.08 Sinkhole Areas .................................................................................................................................... 44 1. Sinkhole Report ....................................................................................................................................... 44 2. Procedure for Utilization of Sinkholes ................................................................................................... 45 4.020.09 Flowline ............................................................................................................................................... 45 4.020.10 Manholes ............................................................................................................................................. 46 4.020.11 Overflow/Design System .................................................................................................................... 47 4.030 Stormwater Design Criteria ........................................................................................................................ 47 4.030.01 Flow Quantities .................................................................................................................................. 47 1. Rainfall Frequency .................................................................................................................................. 48 2. Impervious Percentages and Land Use .................................................................................................. 48 3. Reduction in P.I. with Time and Area ................................................................................................... 49 4.030.02 Hydraulic Grade Line for Closed Conduits .................................................................................... 50 1. Computation Methods ............................................................................................................................. 50 a. Friction Loss ......................................................................................................................................... 50 b. Curve Loss ............................................................................................................................................ 51 c. Entrance Loss at Terminal Inlets ........................................................................................................... 51 d. Turn Loss .............................................................................................................................................. 51 e. Junction Chamber Loss ......................................................................................................................... 52 f. Losses at Junctions of Several Flows in Manholes and/or inlets 53 g. Transition Loss ..................................................................................................................................... 54 (1) Closed Conduits ............................................................................................................................... 54 (2) Open Channel Transitions ................................................................................................................ 55 4.030.03 Hydraulic Grade Line Limits ............................................................................................................ 55 4.030.04 Inlets .................................................................................................................................................... 56 4.030.05 Open Channels ................................................................................................................................... 57 1. Size and Shape ......................................................................................................................................... 57 2. Materials................................................................................................................................................... 57 3. Bedding ..................................................................................................................................................... 58 4. Structural Considerations ....................................................................................................................... 58 5. Alignment ................................................................................................................................................. 58 6. Locations .................................................................................................................................................. 58 7. Flowline .................................................................................................................................................... 58 8. Other Open Channel Considerations and Requirements ..................................................................... 58 9. Design Limitations ................................................................................................................................... 59 10. Hydraulic Grade Line......................................................................................................................... 59 a. Computation Methods ........................................................................................................................... 59 (1) Control Sections ............................................................................................................................... 60 (2) Friction Loss .................................................................................................................................... 60 (3) Flow in Curved Channels ................................................................................................................. 60 (a) Curve Losses ............................................................................................................................... 60 (b) Superelevations ........................................................................................................................... 60 (4) Transitions ........................................................................................................................................ 61 (a) Proportioning ............................................................................................................................... 61 (b) Losses .......................................................................................................................................... 61 (c) Freeboard .................................................................................................................................... 62 (d) Hydraulic Jump ........................................................................................................................... 62 (e) Sudden Enlargement and Contraction ......................................................................................... 62 (5) Constrictions .................................................................................................................................... 63 (6) Obstructions ..................................................................................................................................... 63 b. Hydraulic Grade Line Limits ................................................................................................................ 63 Revised 2/15/2015 5 11. Hydraulic Jump .................................................................................................................................. 63 12. Open Channel Junctions .................................................................................................................... 63 a. General .................................................................................................................................................. 63 b. Confluence Design Criteria ................................................................................................................... 63 13. Erosion Protection .............................................................................................................................. 64 14. Sanitary Sewer Crossings ................................................................................................................... 64 4.030.06 Culverts ............................................................................................................................................... 64 1. Hydraulic Design ..................................................................................................................................... 64 2. Entrances and Headwalls - Outlets and Endwalls ................................................................................ 64 4.040 Bridges ........................................................................................................................................................... 64 4.040.01 Waterway Capacity and Backwater Effects .................................................................................... 64 4.040.02 Clearance ............................................................................................................................................ 65 4.040.03 Waterway Alignment ......................................................................................................................... 65 4.040.04 Erosion Protection ............................................................................................................................. 65 4.050 Outlet Erosion Protection ............................................................................................................................ 65 4.060 Limitations on Areas Draining Across Sidewalks or Driveways ............................................................. 65 4.070 Impervious Areas - In City of St. Louis ...................................................................................................... 65 4.080 General Performance Criteria for Stormwater Management ................................................................. 65 4.080.01 When Required .................................................................................................................................. 65 4.080.02 Unified Stormwater Sizing Criteria ................................................................................................. 67 1. General ..................................................................................................................................................... 67 2. Water Quality Volume (WQv) ................................................................................................................ 67 3. Channel Protection Storage Volume Requirements (Cpv) ................................................................... 68 4. Flood Protection Volume Requirement (Qp2 & Qp100) ........................................................................... 70 4.080.03 Limits of Maximum Ponding in Stormwater Ponds ....................................................................... 71 4.080.04 General Stormwater Basin Design Requirements .......................................................................... 72 4.080.05 Acceptable Urban BMP Options ...................................................................................................... 74 1. BMP Group 1. Stormwater Ponds ......................................................................................................... 75 2. BMP Group 2. Stormwater Wetlands.................................................................................................... 75 3. BMP Group 3. Infiltration Practices ..................................................................................................... 76 4. BMP Group 4. Filtering Practices .......................................................................................................... 76 5. BMP Group 5. Open Channel Practices ................................................................................................ 76 4.080.06 Stormwater Credits ........................................................................................................................... 76 4.080.07 Easement Required ............................................................................................................................ 77 4.080.08 Maintenance Agreement ................................................................................................................... 77 4.090 Dam Permit Requirements .......................................................................................................................... 77 4.100 Detention Report .......................................................................................................................................... 77 EXHIBIT 4-A .............................................................................................................................................................. 78 Check List for Review of Stormwater Detention ................................................................................................ 78 5. FLOOD PLAIN REQUIREMENTS .................................................................................................................... 91 5.010 Flood Plain Study/100 – Year Hydraulic Study ......................................................................................... 91 5.010.01 When Required .................................................................................................................................. 91 5.010.02 Criteria For Preparation ................................................................................................................... 91 5.010.03 Filling in Flood Plain Areas .............................................................................................................. 93 5.010.04 Detention Basins in Flood Plains ...................................................................................................... 93 5.010.05 Bridges in Flood Plains ...................................................................................................................... 93 Revised 2/15/2015 6 5.010.06 Parking Lots in Flood Plains ............................................................................................................. 93 5.010.07 Site Plan Requirements ..................................................................................................................... 94 6. RECOUPMENT RULES AND REGULATIONS ............................................................................................... 95 6.010 General .......................................................................................................................................................... 95 6.020 Contract Between District and Owner(s) ................................................................................................... 95 6.030 Recoupment Provisions ................................................................................................................................ 95 6.040 Recoupment Procedures and Project Costs ............................................................................................... 95 6.050 Objections to Certified Completed Construction Costs ............................................................................ 95 6.060 Recoupment Fees .......................................................................................................................................... 95 6.070 Areas Served by More Than One Sewer Facility Under Recoupment .................................................... 96 6.080 Connection to Recoupment Sewer Facility................................................................................................. 96 6.090 Reports of Owner of Sewer Facility ............................................................................................................ 96 6.090.01 Annual .................................................................................................................................................. 96 6.090.02 Interim ................................................................................................................................................. 96 6.100 Extent of and Time Limits of Recoupment ................................................................................................. 96 7. EASEMENTS ......................................................................................................................................................... 97 7.010 General .......................................................................................................................................................... 97 7.020 Use of Existing Easements ........................................................................................................................... 97 7.030 Location of Easements ................................................................................................................................. 97 7.040 Width of Easements ...................................................................................................................................... 97 7.050 Wording of Easements ................................................................................................................................. 97 7.060 Easement Plat Preparation Information Guidelines ................................................................................. 97 7.060.01 Label Established Lines Affecting Tract and/or Mentioned in its Legal Description: ................ 97 7.060.02 Identify Parcel or Tract: ................................................................................................................... 98 7.060.03 Provide Accurate Title Box Information: ........................................................................................ 98 7.060.04 Easement Plat Drafting Guidelines ................................................................................................... 98 7.070 Vacation of Easements ................................................................................................................................. 99 7.080 Easement Encroachment............................................................................................................................ 100 7.090 Indemnity Agreement ................................................................................................................................. 101 8. APPROVAL AND DEDICATION OF PROJECTS WITH PUBLIC SEWERS ........................................... 102 8.010 General ........................................................................................................................................................ 102 Revised 2/15/2015 7 8.020 Requirements for Plan Approval and Issuance of Permits ..................................................................... 102 8.020.01 Agreement to Dedicate .................................................................................................................... 102 8.020.02 Construction Escrow Deposit and Cash Deposit Agreement ....................................................... 102 8.020.03 Conditional Plan Approval ............................................................................................................. 102 8.020.04 Flexibility for BMP Permitting & Inspection 102 8.030 Requirements for Construction Approval ................................................................................................ 103 8.030.01 Construction Inspection .................................................................................................................. 103 8.030.02 Field Changes and Plan Revisions ................................................................................................... 103 8.030.03 As-Built Drawings ............................................................................................................................ 103 1. Storm, Sanitary and Combined Sewers ............................................................................................... 104 2. Detention Basin ...................................................................................................................................... 104 3. Pump Station Construction................................................................................................................... 104 4. Subdivision Plats .................................................................................................................................... 105 5. Geotechnical Engineer's Certification ................................................................................................. 105 6. State Plane Coordinates ........................................................................................................................ 105 a. Horizontal Data ................................................................................................................................... 105 b. Vertical Data ....................................................................................................................................... 105 c. Deliverables ........................................................................................................................................ 105 8.030.04 Stormwater Quality mangem Facilities and Construction Deposit Agreement .......................... 106 8.030.05 Notification of Construction Approval 106 8.040 Requirments for District Approval of Stormwater Management Facility Construction ..................... 106 8.040.01 Contruction Inspections ................................................................................................................... 106 8.040.02 Field Changes and Plan Revisions ................................................................................................... 106 8.040.03 As-Built Drawings ............................................................................................................................. 107 8.050 Dedication and Release of Construction Deposit ..................................................................................... 107 8.050.01 Residential and Commercial Subdivisions, Apartments and Condominiums 107 a. Initial Dedication Inspection 107 b. Final Dedication Inspection 107 8.050.02 Sewer Extensions and Single Lot Developments 108 8.050.03 Dedication Inspection Fees 108 8.060 Pump Stations ............................................................................................................................................. 108 8.070 Abandonment of Work 109 8.080 Release of Stormwater Quality Management Facilities Construction Deposit 109 9. FEES AND DEPOSITS REQUIRED BEFORE PLAN APPROVALAND ISSUANCE OF CONSTRUCTION PERMITS ................................................................................................................................. 111 9.010 Fees Required Before Plan Approval ....................................................................................................... 111 9.010.01 Submittal Fee .................................................................................................................................... 111 9.010.02 Review Fee ........................................................................................................................................ 111 9.010.03 Connection and System Development Fees .................................................................................... 111 9.010.04 Recording Fees ................................................................................................................................. 111 9.020 Deposits Required Before Issuance of Construction Permits ................................................................. 111 9.020.01 As-Built Deposit ............................................................................................................................... 112 9.020.02 Construction Deposit ....................................................................................................................... 112 9.020.03 Pump Station Escrow Deposit ......................................................................................................... 112 9.020.04 Conditional Plan Approval Deposit................................................................................................ 112 9.020.05 BMP Deposit 112 Revised 2/15/2015 8 10. CONSTRUCTION PERMITS .......................................................................................................................... 113 10.010 General ........................................................................................................................................................ 113 10.010.01 Permits Required ............................................................................................................................. 113 10.010.02 Defaults ............................................................................................................................................. 113 10.020 Permittee ..................................................................................................................................................... 113 10.030 Performance Bond ...................................................................................................................................... 113 10.040 Construction and Connection Permit and Fees ....................................................................................... 114 10.040.01 Connection Permit and Fee .............................................................................................................. 114 10.040.02 Construction Permit and Fee ........................................................................................................... 114 10.040.03 Machine Tap Permit and Fee ........................................................................................................... 114 10.050 Inspection Fee Deposit ............................................................................................................................... 115 10.060 Expiration and Extension of Permits and Approved Plans .................................................................... 115 10.060.01 Approved Plans ................................................................................................................................ 115 10.060.02 Construction and Connection Permits ........................................................................................... 115 10.070 Cancellation of Permits and Refunds of Fees and Deposits .................................................................... 115 10.070.01 Prior to the Start of Work ............................................................................................................... 115 10.070.02 After the Start of Work ................................................................................................................... 116 10.070.03 Connection Permits .......................................................................................................................... 116 10.080 Final Determination of Construction Inspection Fees ............................................................................. 116 10.090 Minimum Insurance Requirements for Off Site Construction ............................................................... 116 10.090.01 Comprehensive Automobile Liability: ........................................................................................... 117 10.090.02 Commercial General Liability (occurrence from): ....................................................................... 117 10.090.03 Cancellation & Replacement Policy ............................................................................................... 117 11. INSPECTION .................................................................................................................................................... 120 11.010 General ........................................................................................................................................................ 120 11.020 Privately Constructed Sewers and Treatment Facilities ......................................................................... 120 11.030 Maintenance and Operation Inspection ................................................................................................... 120 11.040 Fees .............................................................................................................................................................. 120 11.050 Inspection ................................................................................................................................................... 120 12. REGULATION AND CORRECTION OF IMPROPER PRIVATE SEWER FACILITIES ..................... 121 12.010 General ........................................................................................................................................................ 121 12.020 Notification to Owner................................................................................................................................. 121 12.030 Expiration of Period Without Work Being Done .................................................................................... 121 12.040 District to Proceed with Work................................................................................................................... 121 Revised 2/15/2015 9 12.050 Cost of Work - A Lien ................................................................................................................................ 121 12.060 Appeal from Decision to Proceed with Work ........................................................................................... 121 13. SEWAGE PUMPING STATIONS ................................................................................................................... 122 13.010 General ........................................................................................................................................................ 122 13.020 Pump Station Plan Review Procedure ...................................................................................................... 122 13.020.01 Design Report .................................................................................................................................... 122 13.020.02 Design Drawings .............................................................................................................................. 122 13.020.03 Required Submittal .......................................................................................................................... 123 13.030 Low Pressure Sewer Systems (LPSS) ....................................................................................................... 123 13.030.01 General............................................................................................................................................... 123 13.030.02 LPSS Plan Review Procedure ......................................................................................................... 123 1. Low Pressure Sewer System Design Report: ....................................................................................... 123 2. Design Drawings: ................................................................................................................................... 123 13.030.03 Required Submittal ........................................................................................................................... 123 14. APPENDIX – VOLUMETRIC METHOD 15. RESERVED (FOR FUTURE INDEX)