Certified valuesAlkalinity,Total(as CaCO3).184mg/L Nitrate + Nitrite (as N) . 4.3 mg/L Calcium . 90.6 mg/L pH. 8.3Chloride. 93 mg/L Potassium . 4.0 mg/L Dissolved Inorganic Carbon (DIC) . 42.7 mg/L Silica (as Si) . 1.16 mg/L Dissolved Organic Carbon (DOC)