A boil water notice has been issued for D & M Water Supply customers living south of Nacogdoches.
Water supply officials say chlorine residuals dropped below the required levels in the water system.
As a result, customers should boil their water prior to consumption.
The areas included in this notice:
FM 2863 (Press Road)
CR 521 (Briar Forest)
CR 522 (Wildhurst)
CR 525 (Big Banks Road)
S. Hwy 59
Old Runaway Road
Deer Run Road
FM 2782 between the intersection of S. Hwy 59 and CR 635
To ensure destruction of all harmful bacteria and other microbes, water for drinking, cooking, and making ice should be boiled and cooled prior to consumption.
Water supply officials said they will notify customers when it is no longer necessary to boil water, and when water is safe for consumption.