Lab analysis of water from a lake showed it contains 0.25 mg/L cyanide, 0.19 mg/L nickel2+ and 12.2 mg/L chromium3+. Provided the reference dose value for cyanide, nickel and chromium are 0.02mg/kg-day, 0.02 mg/kg-day and 1.0 mg/kg-day, respectively. Assess whether consumption of this water is safe or not. Assume adult is 70kg and drink 2L/day.