Casual observation suggests that many households in Moscow boil water, settle water in pans for some periods (e.g., overnight) before consuming, filter water, and buy bottled water. To date, there has been little empirical analysis of such avoidance behavior. Based on a recently completed survey of 615 households in Moscow, this paper investigates the types and amounts of avoidance measures that are used by households in Moscow to adjust drinking water quality. Survey results show that this is clearly the case: over 88 per cent of the sample boil water regularly due to concerns about water quality; 23 per cent filter water regularly; over 30 per cent settle water regularly; and about 13 per cent buy bottled water regularly. On the other hand, residents are generally content with their cold water supply and quality of delivery. Based on a microeconomic model of household avoidance behavior, logit regression results show how avoidance decisions relate to income, opinions of water quality, and location in the city. It is expected that this analysis from Moscow can also be used as a guide for future studies in other cities in Russia to evaluate opinions of quality, avoidance measures, and citizens' willingness to support public infrastructure projects designed to improve water supply.