Fire Hydrant Testing May 2 - June 24


4/15/20167 years ago

caution sign The information on this page may be outdated as it was published 7 years ago.

open hydrant flowing water

Fire Hydrant Testing through June 24
May Cause Water Discoloration & Clothing Stains

The Cambridge Water and Fire Departments will be conducting annual fire hydrant maintenance and flow testing weekdays between 9 a.m.-2 p.m., beginning May 2nd through June 24th, excluding holidays. Hydrant testing is performed to ensure operability and to identify and repair those hydrants requiring maintenance.  In addition to hydrant testing, crews will be performing water main flushing.  Approximately 25 hydrants will be tested in each area, each day.  

Hydrant testing may disturb the sediment that naturally occurs in the water piping system.  Water from your faucet and toilet may appear rust colored from the disturbance.  Rust discoloration may last for several hours after the tests have been completed.  Discolored water does not usually present a health hazard, however, the Water Department recommends that anyone who has doubts about the rust colored water should not drink it.  You may wish to store tap water or two-gallon containers in your refrigerator for the day of the test.

We also suggest that the residents check their water before doing laundry because the discolored water may stain your clothes. If your laundry is stained, the Water Department will provide you with a wash additive to remove the stains.  

If you would like to know when the hydrants are being tested in your neighborhood, please review the schedule shown below.  You can also follow us on Twitter (@CambWaterDept), like us on Facebook, check your local cable television stations for updates on test areas, or call the Cambridge Fire Department at 617-349-4921 between 8:00 AM to 8:45 AM for daily test locations.  If you have any questions on water quality, please call Ed Dowling, Laboratory Manager, Cambridge Water Department at 617-349-4780. Below are general reference dates for Cambridge neighborhoods: 

 East Cambridge  Area   Engine 3  May 2 through May 13
 North Cambridge Area  Engine 4  May 2 through May 13
 Riverside Area  Engine 6  May 16 through May 27
 Observatory Hill Area  Engine 8  May 16 through May 27
 Harvard Square Area  Engine 1  May 31 through June 10
 Central Square Area  Engine 2  May 31 through June 10
 West Cambridge Area  Engine 9  June 13 through June 24 
 Inman Square Area  Engine 5   June 13 through June 24

Please note that these dates for testing remain flexible due to weather and Fire Department activities.

For a map of the fire hydrant testing areas, please click on the link below:

fire hydrant map