May 4 - Boil-Water Order Lifted*

No. 2010-05
To: Principals and Pastors
From: Mary Grassa O’Neill and Joseph McEnness
RE: Boil-Water Order Lifted

Date: May 4, 2010

Governor Patrick said the water supply is now clean and safe for all purposes for all MWRA communities. The boil-water order, which was issued at 4 p.m. on Saturday, has been lifted for all 30 MWRA communities east of Weston whose water service was interrupted by a rupture of the MetroWest Water Supply Tunnel on Saturday.

Guidelines for water use going forward are as follows:

Residents and businesses are advised to “flush” their water following the lifting of the boil order in order to clear plumbing of potentially contaminated water.  Flushing your water lines includes interior and exterior faucets; showers; water and ice dispensers; water treatment units, etc.

Cold Water Faucets: Run tap water until the water feels cold, 1 minute or more, before drinking, tooth brushing, or using for food preparation.

Hot Water Faucets: To clear hot water pipes and water heater of untreated water, turn on all hot water faucets and flush for a minimum of 15 minutes for a typical household 40-gallon hot water tank and 30 minutes for an 80-gallon hot water tank or larger. Never use water from the “hot” faucet for drinking, cooking, or other internal-consumption purposes. After this flushing, hot water is then safe to use for washing hands, and for hand washing of dishes, pots and pans, etc. 

Refrigerators:  Water dispensers from refrigerators should be flushed by at least one quart of water.

Dishwashers:  After flushing hot water pipes and water heater, run dishwasher empty one time. 

Humidifiers: Discard any water used in humidifiers, Continuous Positive Airway Pressure (CPAP), oral, medical or health care devices, and rinse the device with clean water.

Food and baby formula: Be sure you have discarded any baby formula or other foods prepared with water on the days of the boil order. (If unsure of the dates contact your water Department.)

Ice cubes: Automatic ice dispensers should be emptied of ice made during the boil order.  Then, discard ice made over an additional 24-hour period to assure complete purging of the water supply line.

Due to the flushing of the lines by residents and the flushing of the hydrants, some customers may experience a lack of water pressure and/or discolored water. However, this is an expected result and does not pose a health risk. Contact your local Water Department if you have any questions.