Best Practice Guide on Managing Metals and Related Substances in Small Water Supplies

This Best Practice Guide aims to share best practice and experience from around the world on a practical level. It looks at general issues relating to small supplies and ways of managing these, adopting a Water Safety Plan approach to deliver sound and lasting improvements to quality. Management techniques and treatment relating to specific metals will be covered, from a theoretical and practical perspective, to deliver a publication that will act as an authoritative guide for all those faced with the problem of ensuring the quality of a small water supply. Varied case-studies will help to illustrate issues and ways in which they have been resolved.

Table of contents

The Difficulties of Managing Water Quality in Small WaterSupplies; What are Small Supplies?; The Management and Regulation of SmallWater Supplies; The Vulnerability of Small Water Supplies to Contamination byMetals; Water Safety Plans for Small Water Supplies; Making WSPs Work for SmallSupplies; Teamwork- The Value of a WSP Team; APractical Guide to Developing a WSP for a Small Supply; Practical Guidance for Risk Assessments; Establishing the MetalsProblem: Risk Assessment, Sampling and Analysis; The Range of PossibleProblems; Metal Solubility and Influencing Factors; Risk Assessment of SmallWater Supply Systems; Sampling and Analysis; Consumer Awareness; Sources ofMetals in Small Water Supplies; Origin of Contaminants; Contamination ofSurface Waters; Contamination of Ground Water; Contamination from TreatmentProcesses; Contamination in Distribution Pipework; Contamination from PlumbingFittings; Water Treatment Processes Available for Use on Small Water Systems;Process Selection; Types of Treatment; Practical Considerations of Treatmentfor Metals in Small Water Supplies; Iron; Manganese; Conditioning of Water toPrevent Dissolution of Plumbing Materials or Post-treatment Contamination; Treatmentis Only Part of the Story; Indications and Effects of Post-treatment Metal Contamination in Small WaterSupplies; Establishing the Source of the Problem; Factors Controlling theCorrosion of Metals into Small Water Supplies; The Conditioning of Water toMinimise Corrosion; Manual of Individual Metals in Small Water Supplies, Aluminium,Antimony, Arsenic, Barium, Beryllium, Boron, Cadmium, Chromium, Cobalt, Copper,Iron, Lead, Manganese, Mercury, Nickel, Selenium, Tin, Tungsten, Uranium, Vanadium,Zinc; Case Studies; Arsenic removal in Small Supplies in Italy; A New BoreholeSupply with Iron Removal for a Single Property in England, UK; Metals in SmallWater Supplies in Areas of Water Scarcity in African Regions; Unexplained LeadContamination of a Small Water Supply in Northern Scotland

EDITORS

Matt Bower, Drinking Water Quality Regulator for Scotland,UK

Colin Hayes, Swansea University, UK