Harmful algal bloom confirmed at Elk Grove Pond - Closure issued

Harmful algal bloom confirmed at Elk Grove Pond – Closure issued A Harmful Algal Bloom (HAB) is present at the Elk Grove Pond in the Elk Grove Subdivision south of Four Corners. This pond is now under a closure advisory.

Do not fish, swim, or recreate in the water until further notice. Keep all pets and livestock away from the water. Advisory signs are posted in the area warning the public that toxic algae have been identified in the water and toxins are present.

HABs are caused by blue-green algae that are native to Montana’s freshwater lakes and reservoirs. Not all varieties of blue-green algae are harmful, but some can produce dangerous toxins. Ingestion or prolonged contact with the algal bloom may result in illness, with impacts such as muscle twitching, staggering, convulsions, paralysis, and death.

Children and pets are more likely to ingest HAB infested water. Toxin exposure can occur in humans from recreational activities where water might be ingested such as swimming, windsurfing, jet skiing, and waterskiing.

Children and pets are more likely to ingest HAB infested water because they spend most of their time wading in the shallow waters where algae can accumulate, and they have less control over how much water they ingest. Animals and livestock that drink large amounts of contaminated water, and pets that collect scum on their fur and then ingest it by licking, are at high risk of toxin exposure.

Blue-green algal blooms often look like pea soup, grass clippings or green latex paint. The algae are usually suspended in the water or appear as floating mats. Suspect a HAB? When in doubt, stay out. Do not drink, swallow, or swim in water that shows signs of a HAB and be sure to keep kids, pets, and livestock out too.

If you suspect a HAB-related illness in a person or animal call Poison Control 1-800-222-1222 and seek medical attention. Report a suspected HAB at www.hab.mt.gov or call 1-888- 849-2938. You may also report a suspected HAB by calling the Gallatin City-County Health Department Environmental Health at 406-582-3120. The Gallatin City-County Health Department has resources for water quality on their website, www.healthygallatin.org.

HABs can look like green latex paint, pea soup, or grass clippings. A HAB is present at the Elk Grove Pond south of Four Corners.