COMMUNITY PUBLIC WATER SYSTEMS DESIGN CRITERIA

1 COMMUNITY PUBLIC WATER SYSTEMS DESIGN CRITERIA Division of WATER Resources Tennessee Department of Environment and Conservation 2018 Division of WATER Resources COMMUNITY PUBLIC WATER SYSTEMS DESIGN CRITERIA (04/2018) TABLE OF CONTENTS Page Introduction .. 1 Part 1. Submission of Engineering Documents .. 2 General .. 2 Engineer's Report .. 2 Plans .. 5 Specifications .. 7 Revisions to Approved Plans .. 7 As-Built Plans .. 7 Part 2. General DESIGN Considerations .. 8 Plant Layout.

2 8 Building Layout .. 8 Standby Power .. 8 Automatic Equipment .. 8 Storage and Shop Space .. 9 Provisions for Future Expansion .. 9 Metering .. 9 Part 3. Source Development .. 10 General .. 10 Surface WATER .. 10 Ground WATER .. 11 General Well Construction Requirements .. 12 Part 4. Treatment .. 20 General .. 20 Clarification .. 20 Filtration .. 23 Package Treatment Plants, Membranes and Other Technologies .. 29 Disinfection .. 29 31 Aeration .. 33 Iron and Manganese Control .. 34 Fluoridation.

3 36 Corrosion Control .. 37 Taste and Odor Control .. 38 Waste Disposal .. 39 Part 5. Chemical Application .. 41 General .. 41 Feed Equipment .. 41 Chemicals .. 45 47 Operator Safety .. 48 Page Division of WATER Resources COMMUNITY PUBLIC WATER SYSTEMS DESIGN CRITERIA (04/2018) Part 6. Laboratory Facilities .. 49 General .. 49 49 Laboratory Space and Facilities .. 49 Sample Taps .. 49 Part 7. Pumping Facilities .. 50 General .. 50 Location .. 50 Ground WATER Facilities .. 50 Surface WATER Facilities.

4 51 Booster Pumps .. 52 Automatic and Remote Controlled Stations .. 53 Appurtenances .. 53 Part 8. Finished WATER Storage .. 54 General .. 54 Plant Storage .. 56 Pressure Tanks .. 56 Distribution Storage .. 57 Part 9. Distribution SYSTEMS .. 59 system DESIGN .. 59 Installation of Mains .. 60 Separation of WATER Mains and Sewers .. 61 Surface WATER Crossings .. 62 Cross Connections .. 62 WATER Services and Plumbing .. 62 Materials-General .. 62 Pipe .. 63 Valve, Air Relief, Meter and Blow-off Chambers.

5 64 Division of WATER Resources COMMUNITY PUBLIC WATER SYSTEMS DESIGN CRITERIA (04/2018) 1 INTRODUCTION This publication is a revised edition of our DESIGN CRITERIA for COMMUNITY PUBLIC WATER SYSTEMS . They have been prepared as a guide to WATER SYSTEMS , DESIGN engineers, and our own staff. There has been no attempt to address every situation. We also know that there will be occasions when these CRITERIA will not apply. Exceptions will be handled on an individual basis. The Tennessee Safe Drinking WATER Act of 1983 requires The Department of Environment & Conservation to: "Exercise general supervision over the construction of PUBLIC WATER SYSTEMS throughout the state.

6 Such general supervision shall include all the features of construction of PUBLIC WATER SYSTEMS which do or may affect the sanitary quality or the quantity of the WATER supply. No new construction shall be done nor shall any change be made in any PUBLIC WATER system until the plans for such new construction or change have been submitted and approved by the department." (Extract of part of Section 68-221-706, Tennessee Code) Where the terms shall and must are used, it is intended to be a mandatory requirement.

7 Other terms such as should, recommend, preferred, and the like, are intended to show desirable equipment, procedures, or methods. We encourage development of new methods and equipment. However, any new developments must be demonstrated to be satisfactory before we can approve their use. Operating data from other installations, or demonstration of the equipment by a manufacturer's representative, or both, may be needed for our review. These CRITERIA are a compilation of information from a number of sources. The principle source, however, is Recommended Standards for WATER Works, 1982 Edition.

8 This publication is a report of "The Committee of the Great Lakes Upper Mississippi River Board of State Sanitary Engineers" and is commonly known as Ten-State Standards. Division of WATER Resources COMMUNITY PUBLIC WATER SYSTEMS DESIGN CRITERIA (04/2018) 2 Part 1 - SUBMISSION OF ENGINEERING DOCUMENTS GENERAL - All reports, final plans and specifications should be submitted at least 30 days prior to the date on which action by the Department is desired. Per Division of WATER Resources Regulation , the appropriate plans review fee payment (payable to TDEC) must be submitted with the engineering documents.

9 Preliminary plans and the engineer's report should be submitted for review prior to the preparation of final plans when the project will significantly change the distribution system or alter the treatment plant. No approval for construction will be issued until final, complete, detailed plans and specifications have been submitted to the Department and found to be satisfactory. All submittals must be signed by a responsible official of the WATER utility or its designated representative and the name of the system must be clearly identified.

10 Documents submitted for formal approval shall include but not be limited to: a. summary of the basis of DESIGN , b. hydraulic calculations and profiles, c. operation requirements, where applicable, d. general layout, e. detailed plans, f. specifications (See Section ). At least four copies of the reports, final plans and specifications are required. Submittals should be addressed to: Engineering Manager, Drinking WATER Unit Division of WATER Resources 312 Rosa Parks Avenue, 11th floor Nashville, TN 37243 Phone: (615) 532-0191 Fax: (615) 532-0686 ENGINEER S REPORT - In general, the engineering report for WATER works improvements shall clearly present: a.