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COLUMBIA COUNTY COLUMBIA COUNTY WATER UTILITY CONSTRUCTION STANDARDS AND SPECIFICATIONS WATER UTILITY ENGINEERING AND INSPECTIONS DEPARTMENT MARCH 2010 REVISED: JULY 2014 ---PAGE BREAK--- A Community of Pride A County of Vision Endless Opportunities www.columbiacountyga.gov COLUMBIA COUNTY WATER UTILITY CONSTRUCTION STANDARDS AND SPECIFICATIONS March 2010, Revised July 2014 Columbia County Water Utility Administrative Office 2140 William Few Parkway Grovetown, GA 30813 P.O. Box 960 Grovetown, GA 30813 [PHONE REDACTED] Columbia County Water Utility Engineering and Inspections Department [PHONE REDACTED] Office [PHONE REDACTED] Fax Please direct any questions concerning specifications or details to the Columbia County Water Utility Engineering and Inspections Department. All documents are available free via the Columbia County Website under the Water Utility Engineering and Inspection section. All documents are in Adobe Acrobat format and downloadable. Complete bound copies may be purchased from the Administrative Office. It is the sole intent of these documents to facilitate the design and construction of all water and sanitary sewer utilities and associated appurtenances for Columbia County, Georgia. All other County Ordinances and Standards and Specifications shall apply as required during the design and construction of the water and sewer facilities. For more information concerning all other design and construction in Columbia County, see the Columbia County Construction Standards on file with the Development Services Department. Erosion and Sediment Control design, construction, inspections and enforcement shall be reviewed and governed by the Columbia County Development Services Department. ---PAGE BREAK--- COLUMBIA COUNTY WATER UTILITY CONSTRUCTION STANDARDS AND SPECIFICATIONS TABLE OF CONTENTS TBC-1 SECTION 11.0 SANITARY SEWER AND WATER DISTRIBUTION 11-1 thru 11-19 DESIGN CRITERIA 11.1 Plan Submittal, Extensions, Standard Details, Standard Notes, As Built Submittal, Final Plat Submittal, and Final Package Submittal 11-1 thru 11-8 11.2 GDOT Utility Encroachment Permits 11-8 thru 11-9 11.3 Sanitary Sewer Design 11-9 thru 11-14 11.4 Lift Station Design 11-14 thru 11-16 11.5 Water Distribution System Design 11-16 thru 11-20 Sanitary Sewer Extension Forms Appendix A Water Line Extension Form Development – Water Supply & Demand Calculations Appendix B Water System Demand and Sanitary Sewer Contribution Form (Single Site Only) Appendix AB Water Meter Flow & Head Loss Design Information Appendix C Project Construction Cost Form Appendix D Sewer Flow Test Request Form Appendix E Water Flow Test Request Form Appendix F GDOT Encroachment Permit Check List Appendix G Sanitary Sewer Basin Map & WWTP Locations Appendix H Water System Pressure Zone Map Appendix I Development Plan Review Check List DPRC-1 thru 2 Final Plat / Easement Plat Review Check List PRC-1 As Built Review Check List ARC-1 SECTION 12.0 SANITARY SEWER SYSTEM CONSTRUCTION 12-1 thru 12-29 12.1 Construction of Gravity Sanitary Lines 12-1 thru 12-3 12.2 Protection of Existing Utilities and Restoration of Property 12-3 12.3 Work Site Safety 12-3 thru 12-4 12.4 Warranty of Work 12-4 12.5 Materials 12-4 thru 12-9 12.6 Gravity Sewer Line Installation 12-9 thru 12-10 12.7 Dewatering and Drainage of Excavated Areas 12-10 12.8 Protection Against Flotation 12-10 thru 12-11 12.9 Shoring and Protection of Excavation 12-11 12.10 Blasting 12-11 12.11 Trench Excavation 12-11 thru 12-13 12.12 Pipe Laying 12-14 thru 12-15 12.13 Testing of Gravity Sanitary Sewer Lines 12-15 thru 12-17 12.14 Standard Manholes 12-17 thru 12-22 ---PAGE BREAK--- COLUMBIA COUNTY WATER UTILITY CONSTRUCTION STANDARDS AND SPECIFICATIONS TABLE OF CONTENTS TBC-2 12.15 Air Release Valve (ARV) Manholes 12-22 12.16 Service Laterals 12-22 thru 12-23 12.17 Bore and Jack Crossings / Creek Crossings 12-23 thru 12-24 12.18 Aerial Crossings 12-24 thru 12-25 12.19 Force Main 12-25 thru 12-26 12.20 Force Main Valves 12-26 thru 12-27 12.21 Miscellaneous Equipment 12-28 12.22 Final Inspections 12-29 Sanitary Sewer Line Air Testing Data Sheet 12-30 Manhole Vacuum Testing Data Sheet 12-31 SECTION 13.0 LIFT STATION CONSTRUCTION 13-1 thru 13-20 13.1 Construction of Lift Station 13-1 thru 13-3 13.2 Precast Wet Well and Valve Vault 13-3 thru 13-6 13.3 Pump Design / Construction 13-6 thru 13-9 13.4 Motor Design / Construction 13-9 13.5 Lift Station Control Center 13-9 thru 13-13 13.6 Primary Control System 13-13 thru 13-14 13.7 Primary Level Sensor 13-14 13.8 Backup Level Sensor 13-15 13.9 As Built Drawings and Diagrams 13-16 13.10 Instrumentation and Control 13-16 thru 13-18 13.11 Lift Station Control Center Framework 13-18 13.12 Lift Station Access Road 13-18 13.13 Lift Station Site 13-19 13.14 Fencing 13-19 13.15 Miscellaneous Equipment 13-19 thru 13-20 SECTION 14.0 WATER DISTRIBUTION SYSTEM CONSTRUCTION 14-1 thru 14-31 14.1 Construction of Water Lines 14-1 thru 14-3 14.2 Materials 14-3 thru 14-4 14.3 Pipe Specifications 14-4 thru 14-9 14.4 Water Line Installation 14-9 thru 14-12 14.5 Pipe Laying 14-12 thru 14-14 14.6 Fittings 14-14 14.7 Fitting Installation 14-15 14.8 Gate Valves 14-15 thru 14-16 14.9 Gate Valve Installation 14-16 thru 14-17 14.10 Service Line and Appurtenances 14-17 thru 14-19 ---PAGE BREAK--- COLUMBIA COUNTY WATER UTILITY CONSTRUCTION STANDARDS AND SPECIFICATIONS TABLE OF CONTENTS TBC-3 14.11 Service Line Installation 14-19 14.12 Meter Boxes / Meter Vault 14-19 thru 14-20 14.13 Meter Box / Meter Vault Installation 14-20 thru 12-21 14.14 Hydrants 14-21 thru 14-22 14.15 Hydrant Installation 14-22 14.16 Tapping Sleeves / Service Saddles 14-22 thru 14-23 14.17 Tapping Sleeve / Service Saddle Installation 14-23 thru 14-25 14.18 Bore and Jack Crossings 14-25 thru 14-26 14.19 Creek Crossings 14-26 14.20 Hydrostatic Testing (Pressure and Leakage) 14-26 thru 14-27 14.21 Chlorination / Disinfection 14-27 thru 14-30 14.22 Connections or Repairs to Existing Water System 14-30 thru 14-31 14.23 Final Inspection 14-31 STANDARD DETAILS STANDARD DETAILS TABLE OF CONTENTS TCSD-1 thru TCSD-2 STANDARD DETAILS