In the situation that h2o top quality parameters are sought after to get better than the objective, 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 File a i https://arthur7irzg.blog-mall.com/31660038/the-definitive-guide-to-how-to-clean-sewage-in-qassim