Dean WSC Boil Water Notices are typically NOT issued for an actual bacterial presence. Almost 100% of the time, the reason we have to issue a Boil Water Notice is because the Texas Commission on Environmental Quality REQUIRES it for the reasons listed at the bottom of this page. 99.99% of the Boil Water Notices issued by our office are for the reasons provided in RED LETTERS.
The latest boil water advisory was issued for Dean WSC on Monday, March 16, 2026 and rescinded on Tuesday, March 17, 2026.
Click HERE for more information.
If your water is discolored after a water outage, click HERE for more information.
UNDERSTANDING A BOIL WATER NOTICE/ADVISORY
According to the Texas Commission on Environmental Quality (TCEQ), there are certain conditions, even in the absence of a laboratory-confirmed microbial contaminant, that necessitates the issue of a boil water notice. Per the TCEQ's authority, Dean WSC must issue a boil water notice, though no public health threat is yet confirmed, whenever the following conditions occur:
Additional Conditions
- Any event where conditions at a PWS are such that public health protection is compromised or potentially compromised (ACCORDING TO THE STATE RULES) [30 TAC 290.46(q) ]
- Low pressure (i.e., below 20 pounds per square inch)
- Water outages (due to line breaks or repairs)
- Disinfectant residual levels below the required minimum (i.e., 0.2 mg/L free and 0.5 mg/L total)
- Line breaks or repairs (construction)
- Storage problems
- Well problems
- Mechanical equipment problems
- Power outages
- Treatment facility problems
- Natural disasters
