07/16/2026
ALERT: BOIL WATER NOTICE
Mandatory Language for Surface Water Treatment Technique Violation
SURFACE WATER TREATMENT TECHNIQUE: ACUTE
The Texas Commission on Environmental Quality (TCEQ) sets minimum water quality standards for public drinking water. One of these standards is a turbidity limit. Turbidity by itself has no health effects. However, turbidity can interfere with disinfection and provide a medium for microbial growth. Turbidity may also indicate the presence of disease-causing organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea, and associated headaches. These symptoms can be particularly severe in people who are not as resistant to infections as most of the population. If you experience severe symptoms, please consult with your doctor to determine what actions you should take.
The Canyon Lake Shores, PWS ID TX0460019, failed to meet the minimum treatment technique requirements for the month of July 2026. Specifically, our water system had Combined filter effluent turbidity (CFE) readings above 5.0 NTU.
Due to the nature and severity of this violation, the TCEQ has required us to issue this public notice and to tell all our customers that they should boil their water prior to consumption.
To ensure destruction of all harmful bacteria and other microbes, any water that you use for drinking, cooking, or ice making should be boiled prior to consumption. The water should be brought to a vigorous rolling boil and then boiled for two minutes. (Be sure to let it cool before drinking it.) In lieu of boiling, you may purchase bottled water or obtain water from some other suitable source. When it is no longer necessary to boil the water, we will notify you.
Due to the severe flooding along the Guadalupe River on July 15 and currently increasing with additional rainfall, our Canyon Lake Shores Treatment Plant is experiencing a significant influx of debris and sediment into Canyon Lake. This is resulting in elevated turbidity levels at the intake into our treatment plant. In response to regulatory requirements, a Boil Water Notice (BWN) is being issued to protect public health.
The notice remains in effect while we work to safely reduce sediment levels and ensure the water meets all applicable state drinking water safety standards. During this time, treatment operations are continuously being monitored, and corrective actions are being implemented to restore normal conditions and maintain regulatory compliance.
This notice affects customers in the following areas:
Bulverde Hills, City of Bulverde, City of Blanco water customers, Copper Canyon, Cypress Springs on the Guadalupe, Edgebrooke, Hidden Trails, Hwy 281 North, Lantana Ridge, Oakland Estates, River Crossing, Riverwood Estates, Saddleridge, Singing Hills, Spring Branch Meadows, The Crossing @ Spring Creek, The Woods @ Spring Branch, Canyon Lake Acres, Canyon Lake Island, Canyon Lake Shores, Canyon Ranch, Cascada at Canyon Lake, Canyon Lake Villas, Canyon Lake Vistas, Comal Hills, Cougar Ridge, Deer River, Devils Backbone Heights, Enclave Subdivision, Glenmare, Goldsmith, Hancock Canyon, Hancock Oaks Hills, Hancock, Hillcrest Estates, Lake of the Hills, Lakewood Hills, Mystic Bluff, Mystic Shores, North Lake Estates, Rancho Del Lago West, Rocky Creek Ranch, RCM – Cypress Lake at Gardens, RCM – Rebecca Creek Estates, RCM – Rebecca Creek Park, RCM – Springs at Rebecca Creek, Scenic Terrace, Serenity Oaks, Stallion Estates, Stallion Springs, Summit North, Tamarack Shores, Tanglewood Shores, The Cedars, The Point, and The Summit at Fischer.
Please share this information with all people who drink this water, especially those who may not have received this notice directly (i.e., people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.
If you have questions regarding this matter, you may contact us at [email protected] or (830) 312-4600.
https://member.everbridge.net/311578402488546/notif/u0ss46Owj
Posted /Delivered on:
July 16th, 2026
