HYATTSVILLE, Md. (AP/WJZ) — Officials say about 100,000 residents in Prince George’s County should boil their water before drinking it following a water main break.

The Washington Suburban Sanitary Commission (WSSC) says the residents are under a precautionary water-boil advisory until sometime Thursday or Friday. The advisory was issued Tuesday after a 59-year-old water main broke in Hyattsville.

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WSSC spokeswoman Lyn Riggins says when a water system loses pressure, there’s an increased risk of contamination. But she said Wednesday that there’s been no evidence of contamination so far since the break.

All impacted schools will receive bottled water to meet the needs of the students and staff in each building. Officials say there will be no interruptions or changes to meal services.

Parents will be notified of any changes to bus stops and routes around the area where repairs are taking place.

The commission is advising residents to boil their water before drinking it, brushing their teeth, washing dishes, making ice or preparing food.

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Affected residents live in Hyattsville, Bladensburg, Mount Rainier, Cheverly, Chillum, Edmonston, Landover Hills, Glen Arden, Fairmount Heights, Seat Pleasant and Brentwood.

Related Story: Parts Of Prince George’s County To Be Without Water For Days

Last year, more than 125,000 Prince George’s County residents were affected by another failing water main.

(Copyright 2013 by The Associated Press. All Rights Reserved.)

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