During a PreCautionary Boil Order.

Boiling the water for at least 1or 2 minutes to kill the germs. This is the safest way to sanitize drinking water. 

 A Precautionary Boil Water Notice,

 is Posted if there is a loss of CL2 disinfection (Chlorine), water pressure, due to Electrical, mechanical, or other problem, preventing RWD#12 from providing sufficient disinfection and or water pressure.

Sometimes a water line break, or a planned repair, or new Main line install are cause to Post a Precautionary Boil Order. 

Chlorine disinfection , and Water pressure help keep pollutants from entering the underground pipes that bring drinking water to your house.