What information must the city send to every household that the city supplies with water? 

In the late 1980s, residents of Lake Caliopa, Minnesota, began noticing an unusually high number of lung ailments among their population. A group of concerned local citizens pooled their resources and commissioned a study of the frequency of these health conditions per capita as compared to national averages. The study concluded that residents of Lake Caliopa experienced four to seven times the frequency of asthma, bronchitis, and emphysema as the population nationwide. During the study period, citizens began expressing concerns about the large volumes of smog emitted by the Cotton Design apparel manufacturing plant on the outskirts of town. The plant had opened its production facility two miles east of town beside the Tawakoni River in 1997 and employed seventy fulltime workers by 2008.

Just downstream on the Tawakoni River, the city of Lake Caliopa operated a public water works facility, which supplied all city residents with water. In August 2008, the Minnesota Pollution Control Agency required Cotton Design to install new equipment to control air and water pollution. In May 2009, thirty citizens brought a class-action lawsuit in a Minnesota state court against Cotton Design for various respiratory ailments allegedly caused or compounded by smog from Cotton Design’s factory. Using the information presented in the chapter, answer the above question.