Required Tests – The following are the minimum required tests that must be performed during each scheduled visit: • Raw Water o pH o Conductivity o M-alkalinity o Calcium hardness o Silica o Ortho phosphate o Chloride o Free Chlorine • Tower Water o pH o Conductivity o M-alkalinity o Calcium hardness o Silica o Trace o Phosphonate o Copper o Azole o Turbidity o Free halogen o ORP o Biological count (by strip method inoculated 48 hours prior by LES personnel and incubated at 35° C) • Closed Loop Water o pH o Conductivity o Molybdenum, nitrite, and/or glycol (where applicable) o Copper o Iron o Azole o Turbidity o Biological count (by strip method inoculated 48 hours prior by LES personnel and incubated at 35° C) • Geothermal Water o Silica o Free chlorine dioxide o pH o Conductivity o Copper o Iron o Turbidity o Biological count (by strip method inoculated 48 hours prior by LES personnel and incubated at 35° C)
