In the case that drinking water good quality parameters are sought after being better than the target, e.g., residual chlorine, the excursion is estimated as follows: e x c u r s i o n i = O b j e c t i v e i F a i https://cruzdq6w6.loginblogin.com/37994899/the-smart-trick-of-how-to-clean-sewage-in-qassim-that-no-one-is-discussing