DESIGN CRITERIA & STANDARDS FOR WATER SUPPLY SYSTEMS VOL.I

PHOTOCOPY

SECTION 1 - FEASIBILITY STUDY -- 1.1 Introduction 1.2 Major activities 1.3 Water demand forecasting 1.4 Water resources study 1.4.1 General 1.4.2 Hydrological study 1.4.3 Dams and reservoirs 1.4.4 Groundwater sources 1.5 Water quality and treatment requirements 1.5.1 Water quality assessment 1.5.2 Treatment requirements 1.6 Formulation of alternative schemes 1.6.1 Existing water supply systems 1.6.2 Formulation of new schemes 1.7 Economic and financial analyses 1.7.1 Economic analysis 1.7.2 Estimating the selling price of water 1.7.3 Financial analysis 1.8 Recommendation of development plan 1.9 Preparation of report SECTION 2 - DESIGN LOW FLOW ESTIM~TION -- 2.1 Introduction 2.2 Design low flow 2.3 Low flow frequency analysis 2.4 Probability density function and cumulative distribution function 2.5 Stream gauging data 2.6 Procedure for calculating low flow for gauged catchments 2.7 Theoretical review of model distributions and 2.6 Goodness of fit tests 2.9 Illustrative example for calculating minimum 7-day flows for given return periods given a set of data record 2.10 The use of Hydrological Procedure No. 12 published by the Drainage and Irrigation Department SECTION 3 - WATER UTLITY -- 3.1 General 3.2 Definition of terms 3.3 Raw water quality criteria 3.4 Criteria for drinking water standard 3.5 Bacteriological quality 3.6 Physical qualities 3.7 Chemical qualities 3.8 Other parameters 3.9 Types and frequency of examination. SECTION 4 - GROUNDWATER INVESTIGATION -- 4.1 Introduction 4.2 Systematic groundwater resources investigation 4.2.1 General 4.2.2 Desk study 4.2.3 Surface study 4.2.4 Subsurface study 4.3 Design of production wells 4.3.1 General 4.3.2 Types of production wells 4.3.3 Components of a production well 4.3.4 Well development 4.3.5 Pumping test 4.3.6 Pump selection 4.3.7 Position of pump 4.4 Long term monitoring SECTION 5 - WATER DEMAND -- 5.1 Water demand for urban areas 5.1.1 General 5.1.2 Planning horizon and staged development 5.1.3 Basic formula for water demand estimation 5.1.4 Population projection 5.1.5 Per capita consumption 5.1.6 Service factor 5.1.7 Provision for additional water demand 5.1.8 Maximum water demand 5.1.9 Unaccounted-for-water 5.1.10 Unsatisfied demand 5.2 Water demand for Felda supplies 5.2.1 General 5.2.2 Basic formula for water demand estimation 5.3 Water demand for regional development authority supplies 5.3.1 General 5.3.2 Basic formula for water demand estimation 5.4 Water demand for housing estates SECTION 6 - WATER TREATMENT PROCESSES -- 6.1 Objectives of water treatment 6.2 Drinking water quality to aim for 6.3 Raw water quality suitable for conventional treatment 6.4 Water treatment processes 6.5 Substances/elements in water and their treatment 6.6 Selection of treatment processes.

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