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    Table of Contents

    Recommended

    Standardsfor Water Works

    2007 Edition

    Policies for the Review and Approvalof Plans and Specifications for Public Water Supplies

    A Report of the Water Supply Committee of theGreat Lakes--Upper Mississippi River Board

    of State and Provincial Public Health and Environmental Managers

    MEMBER STATES AND PROVINCEIllinois Indiana Iowa Michigan Minnesota MissouriNew York Ohio Ontario Pennsylvania Wisconsin

    Published by: Health Research Inc., Health Education Services Division,P.O. Box 7126, Albany, NY 12224(518)439-7286 www.hes.org

    Copyright 2007 by the Great Lakes - Upper Mississippi River Board of State and ProvincialPublic Health and Environmental Managers

    This book, or portions thereof, may be reproduced without permission from the author if proper credit is given.

    TABLE OF CONTENTS

    FOREWORD

    POLICY STATEMENT ON PRE-ENGINEERED WATER TREATMENTPLANTS

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    POLICY STATEMENT ON AUTOMATED/UNATTENDED OPERATION OF SURFACEWATER TREATMENT PLANTSPOLICY STATEMENT ON BAG AND CARTRIDGE FILTERS FOR PUBLIC WATERSUPPLIESPOLICY STATEMENT ON ULTRA VIOLET LIGHT FOR TREATMENT OF PUBLIC WATERSUPPLIESPOLICY STATEMENT ON INFRASTRUCTURE SECURITY FOR PUBLIC WATER SUPPLIESPOLICY STATEMENT ON ARSENIC REMOVAL

    INTERIM STANDARD - NITRATE REMOVAL USING SULFATE SELECTIVE ANIONEXCHANGE RESININTERIM STANDARD - USE OF CHLORAMINE DISINFECTANT FOR PUBLIC WATERSUPPLIESINTERIM STANDARD ON MEMBRANE TECHNOLOGIES FOR PUBLIC WATER SUPPLIES

    PART 1 - SUBMISSION OF PLANS1.0 GENERAL1.1 ENGINEERS REPORT

    1.1.1 General Information1.1.2 Extent of water works system1.1.3 Justification of project1.1.4 Soil, groundwater conditions, and foundationproblems1.1.5 Water use data1.1.6 Flow requirements1.1.7 Sources of water supply1.1.8 Proposed treatment processes

    1.1.9 Sewerage system available1.1.10 Waste disposal1.1.11 Automation1.1.12 Project sites1.1.13 Financing1.1.14 Future extensions

    1.2 PLANS

    1.2.1 General layout1.2.2 Detailed plans

    1.3 SPECIFICATIONS1.4 DESIGN CRITERIA1.5 REVISIONS TO APPROVED PLANS1.6 ADDITIONAL INFORMATION REQUIRED

    PART 2 - GENERAL DESIGN CONSIDERATIONS2.0 GENERAL2.1 DESIGN BASIS2.2 PLANT LAYOUT

    2.3 BUILDING LAYOUT2.4 LOCATION OF STRUCTURES2.5 ELECTRICAL CONTROLS2.6 STANDBY POWER

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    2.7 SHOP SPACE AND STORAGE2.8 LABORATORY FACILITIES2.9 MONITORING EQUIPMENT2.10 SAMPLE TAPS2.11 FACILITY WATER SUPPLY2.12 WALL CASTINGS2.13 METERS2.14 PIPING COLOR CODE2.15 DISINFECTION2.16 OPERATION AND MAINTENANCE MANUAL2.17 OPERATOR INSTRUCTION2.18 SAFETY2.19 SECURITY2.20 FLOOD PROTECTION2.21 CHEMICALS AND WATER CONTACT MATERIAL2.22 OTHER CONSIDERATIONS

    PART 3 - SOURCE DEVELOPMENT3.0 GENERAL3.1 SURFACE WATER

    3.1.1 Quantity3.1.2 Quality3.1.3 Minimum treatment3.1.4 Structures3.1.5 Zebra Mussel control3.1.6 Impoundments and reservoirs

    3.1.7 Security

    3.2 GROUNDWATER

    3.2.1 Quantity3.2.2 Quality3.2.3 Location3.2.4 Testing and records3.2.5 General well construction3.2.6 Aquifer types and construction methods - Special conditions3.2.7 Well pumps, discharge piping and appurtenances

    PART 4 - TREATMENT4.0 GENERAL4.1 CLARIFICATION

    4.1.1 Presedimentation4.1.2 Coagulation4.1.3 Flocculation4.1.4 Sedimentation4.1.5 Solids contact unit

    4.1.6 Tube or plate settlers4.1.7 High rate clarification processes

    4.2 FILTRATION

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    4.2.1 Rapid rate gravity filters4.2.2 Rapid rate pressure filters4.2.3 Diatomaceous earth filtration4.2.4 Slow sand filters4.2.5 Direct filtration4.2.6 Deep bed rapid rate gravity filters4.2.7 Biologically active filters

    4.3 DISINFECTION

    4.3.1 Chlorination equipment4.3.2 Contact time and point of application4.3.3 Residual chlorine4.3.4 Testing equipment4.3.5 Chlorinator piping4.3.6 Housing4.3.7 Ozone4.3.8 Chlorine dioxide4.3.9 Ultra violet light4.3.10 Other disinfecting agents

    4.4 SOFTENING

    4.4.1 Lime or lime-soda process4.4.2 Cation exchange process4.4.3 Water quality test equipment

    4.5 AERATION

    4.5.1 Natural draft aeration4.5.2 Forced or induced draft aeration4.5.3 Spray aeration4.5.4 Pressure aeration4.5.5 Packed tower aeration4.5.6 Other methods of aeration4.5.7 Protection of aerators4.5.8 Disinfection4.5.9 Bypass4.5.10 Corrosion control4.5.11 Quality control

    4.5.12 Redundancy

    4.6 IRON AND MANGANESE CONTROL

    4.6.1 Removal by oxidation, detention, and filtration

    4.6.2 Removal by the lime-soda softening process4.6.3 Removal by manganese-coated media filtration4.6.4 Removal by ion exchange4.6.5 Biological removal4.6.6 Sequestration by polyphosphates

    4.6.7 Sequestration by sodium silicates4.6.8 Sampling taps4.6.9 Testing equipment shall be provided for all plants

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    4.7 FLUORIDATION

    4.7.1 Fluoride compound storage4.7.2 Chemical feed equipment and methods4.7.3 Secondary controls4.7.4 Protective equipment4.7.5 Dust control4.7.6 Testing equipment

    4.8 STABILIZATION

    4.8.1 Carbon dioxide addition4.8.2 Acid addition4.8.3 Phosphates4.8.4 Split treatment4.8.5 Alkali feed4.8.6 Carbon dioxide reduction by aeration4.8.7 Other treatment4.8.8 Water unstable due to biochemical action in distributionsystem4.8.9 Control

    4.9 TASTE AND ODOR CONTROL

    4.9.1 Flexibility4.9.2 Chlorination4.9.3 Chlorine dioxide4.9.4 Powdered activated carbon4.9.5 Granular activated carbon

    4.9.6 Copper sulfate and other copper compounds4.9.7 Aeration4.9.8 Potassium permanganate4.9.9 Ozone4.9.10 Other methods

    4.10 MICROSCREENING

    4.10.1 Design

    PART 5 - CHEMICAL APPLICATION5.0 GENERAL

    5.0.1 Plans and specifications5.0.2 Chemical application5.0.3 General equipment design5.0.4 Chemical Information

    5.1 FEED EQUIPMENT

    5.1.1 Feeder redundancy

    5.1.2 Control5.1.3 Dry chemical feeders5.1.4 Positive displacement solution pumps5.1.5 Liquid chemical feeders - siphon control

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    5.1.6 Cross-connection control5.1.7 Chemical feed equipment location5.1.8 In-plant water supply5.1.9 Storage of chemicals5.1.10 Solution tanks5.1.11 Day tanks5.1.12 Feed lines5.1.13 Handling5.1.14 Housing

    5.2 CHEMICALS

    5.2.1 Shipping containers5.2.2 Specifications5.2.3 Assay

    5.3 OPERATOR SAFETY

    5.3.1 Ventilation5.3.2 Respiratory protection equipment5.3.3 Chlorine leak detection5.3.4 Other protective equipment

    5.4 SPECIFIC CHEMICALS

    5.4.1 Chlorine gas5.4.2 Acids and caustics5.4.3 Sodium chlorite for chlorine dioxide generation5.4.4 Sodium hypochlorite5.4.5 Ammonia5.4.6 Potassium permanganate5.4.7 Fluoride

    PART 6 - PUMPING FACILITIES6.0 GENERAL6.1 LOCATION

    6.1.1 Site protection

    6.2 PUMPING STATIONS

    6.2.1 Suction well6.2.2 Equipment servicing6.2.3 Stairways and ladders6.2.4 Heating6.2.5 Ventilation6.2.6 Dehumidification6.2.7 Lighting6.2.8 Sanitary and other conveniences

    6.3 PUMPS

    6.3.1 Suction lift6.3.2 Priming

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    6.4 BOOSTER PUMPS

    6.4.1 Duplicate pumps6.4.2 Metering6.4.3 Inline booster pumps6.4.4 Individual home booster pumps

    6.5 AUTOMATIC AND REMOTE CONTROLLED STATIONS6.6 APPURTENANCES

    6.6.1 Valves6.6.2 Piping6.6.3 Gauges and meters6.6.4 Water seals6.6.5 Controls6.6.6 Standby power6.6.7 Water pre-lubrication6.6.8 Oil or Grease Lubrication

    PART 7 - FINISHED WATER STORAGE7.0 GENERAL

    7.0.1 Sizing7.0.2 Location of reservoirs7.0.3 Protection from contamination7.0.4 Protection from trespassers7.0.5 Drains7.0.6 Stored Water Turnover

    7.0.7 Overflow7.0.8 Access7.0.9 Vents7.0.10 Roof and sidewall7.0.11 Construction materials7.0.12 Safety7.0.13 Freezing7.0.14 Internal catwalk7.0.15 Silt stop

    7.0.16 Grading

    7.0.17 Painting and/or cathodic protection7.0.18 Disinfection7.0.19 Provisions for sampling

    7.1 TREATMENT PLANT STORAGE

    7.1.1 Filter washwater tanks7.1.2 Clearwell7.1.3 Adjacent storage7.1.4 Other treatment plant storage tanks

    7.2 HYDROPNEUMATIC TANK SYSTEMS

    7.2.1 Location7.2.2 System sizing

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    7.2.3 Piping7.2.4 Appurtenances

    7.3 DISTRIBUTION SYSTEM STORAGE

    7.3.1 Pressures7.3.2 Drainage7.3.3 Level controls

    PART 8 - DISTRIBUTION SYSTEM PIPING AND APPURTENANCES8.0 GENERAL8.1 MATERIALS

    8.1.1 Standards and material selection8.1.2 Permeation by organic compounds8.1.3 Used materials8.1.4 Joints

    8.2 SYSTEM DESIGN

    8.2.1 Pressure8.2.2 Diameter8.2.3 Fire protection8.2.4 Dead ends

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