A harmful algal bloom advisory has been issued for East Wallsburg Bay at Deer Creek Reservoir, as monitoring data indicates the presence of cyanobacteria that may pose health risks to humans and animals. The advisory comes amid ongoing efforts by state and local officials to track water quality and manage public safety in Utah's recreational waterways.
Risks of Cyanobacteria
The Utah Division of Water Quality monitors popular recreational waters across the state for two primary health concerns: harmful algal blooms (HABs) and waterborne pathogens such as E. coli. According to information from Utah State University Extension, these blooms develop when naturally enough cyanobacteria multiply rapidly, forming visible scums or mats within a waterbody.
These blooms are particularly concerning because they can produce dangerous toxins. These toxins create significant health risks not only for humans but also for pets and livestock. The presence of such blooms often triggers specific safety protocols to prevent accidental ingestion or contact with contaminated water.
Public Safety Protocols
Utah State Parks emphasizes a "Take Time Before Playtime" approach, urging all visitors to check current algae conditions before entering the water. Officials noted that algae conditions are a constantly changing variable in the outdoors, much like ice thickness or avalanche warnings.
To keep the public informed, Utah State Parks management works in coordination with both local and state health officials. When a specific state park waterbody is designated as having a harmful algal bloom, park management is responsible for posting appropriate warnings on each individual park website. Additionally, if necessary, local health officials will post physical advisory signs at the park, which are most commonly located at the entrance booths of each state park.
Levels of Water Advisories
The severity of water quality issues is categorized into different levels of advisories, including Health Watches, Warning Advisories, and Danger Advisories. Under a Health Watch or a Warning Advisory, the primary instructions include a directive to not swim or water ski, and a strict prohibition against drinking the water or getting it in one's mouth.
When an advisory is specifically linked to a harmful algal bloom, additional precautions are required for those using the water for recreation. Boaters are instructed to avoid areas containing algae scum, and owners must keep animals away from the affected areas. For those engaged in fishing, officials recommend cleaning fish well and discarding the guts to mitigate risk.
Danger Advisory Restrictions
The most severe classification is a Danger Advisory, which is issued when an established threshold has been exceeded by a waterbody for harmful algal blooms. This indicates that the bloom has become very large or that high levels of dangerous toxins have been measured.
During a Danger Advisory, the restrictions are even more stringent. In addition to prohibitions on swimming, water skiing, and drinking the water, individuals are advised not to boat in the area. While fishing may still occur, users are urged to exercise extreme caution because the effects of these toxins on aquatic life are not well understood. As with lower-level advisories, anyone choosing to fish must clean the fish thoroughly and discard the guts.
Reporting and Resources
For those seeking more information regarding harmful algal blooms or wishing to report a new bloom, the Utah Division of Water Quality maintains a dedicated resource at habs.utah.gov. Residents and visitors are encouraged to remain vigilant by monitoring current water quality maps and official park communications.
