An investigation into the representativeness of random daytime sampling for lead in drinking water, using computational modelling - Nick Croft (Journal of Water Supply: Research and Technology—AQUA, 2012)
This contribution relates to ongoing discussions with the US environmental protection agency and North American water companies and academics with respect to best practise for testing drinking water for metal, specifically lead, content. Most American testing is currently based on stagnation tests which give good information on the premises plumbing but little on the service line. As the service line tends to be the primary source of lead, random daytime testing is a better option. This paper demonstrates a computational tool that can be used in conjunction with sample taking to understand the behaviour of a pipe network.