Providing quality water is a solved problem, but only if you can count on the humans involved.<p>Hell, seven people died in Canada when the local purification plant was run by a couple incompetent brothers [1].<p><i>&quot;The Walkerton Public Utilities Commission operators engaged in a host of improper operating practices, including failing to use adequate doses of chlorine, failing to monitor chlorine residuals daily, making false entries about residuals in daily operating records, and misstating the locations at which microbiological samples were taken.&quot;</i><p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Walkerton_E._coli_outbreak" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Walkerton_E._coli_outbreak</a>