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Blue Green Algae Blooms

Levels of blue-green algae may be high during summer in some local lakes and reservoirs. Avoid coming into direct contact with the algae or swallowing lake water. Keep a close eye on pets or small children, who may ingest water containing toxins produced by these algae.

Exposure to blue-green algae during swimming, wading, and water-skiing can lead to rashes, skin, eye irritation, and effects such as nausea, stomach aches, and tingling in fingers and toes. After you swim, wade or ski, be sure to shower with warm soapy water.

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Current alerts

Updated July 12, 2024

Sampling Results - Beach Closed Alert Level (Red Sign)

Algae and toxin levels make beach currently unsafe for swimming.

  • None.

Sampling Results - Beach Caution Alert Level (Orange Sign)

Swimming and boating permitted. Children and those with compromised immune systems should not swim. Avoid contact with algae. Avoid swallowing water while swimming. Take a bath or shower with warm soapy water after coming in contact with lake water. Do not use lake water for cooking or bathing. Although our test results are specifically for the beach where pets are not permitted to swim, please keep pets out of the water along shallow banks and the shoreline.

  • None at this time.

Sampling Results - Beach Advisory Alert Level (Yellow Sign)

Swimming and boating permitted. Avoid contact with algae. Avoid swallowing water while swimming. Take a bath or shower with warm soapy water after coming in contact with lake water. Do not use lake water for cooking or bathing. Do not allow your pets to swim or drink water where algae are present.

  • Brookville Lake – Mounds SRA Beach
  • Cagles Mill Lake – Lieber SRA Beach
  • Cecil M. Harden Lake – Raccoon Lake SRA Beach
  • Hardy Lake – Hardy Lake SRA Beach
  • Salamonie Lake - Lost Bridge West SRA Beach
  • Starve Hollow SRA – Starve Hollow Lake Beach
  • Whitewater Memorial SP – Whitewater Lake Beach

Sampling Results – Beach Low Risk Alert Level (Blue Sign)

Don't drink the water, shower after you swim.

  • Brookville Lake – Quakertown SRA Beach
  • Chain O’Lakes SP – Sand Lake Beach
  • Deam Lake SRA – Deam Lake Beach
  • Ferdinand State Forest – Ferdinand Lake Beach
  • Lincoln SP – Lake Lincoln Beach
  • Mississinewa Lake – Miami SRA Beach
  • Monroe Lake – Fairfax SRA Beach
  • Monroe Lake – Paynetown SRA Beach
  • Ouabache SP – Kunkel Lake Beach
  • Patoka Lake – Newton Stewart SRA Beach
  • Pokagon SP – Main Beach
  • Pokagon SP – Potawatomi Inn Beach
  • Potato Creek SP – Worster Lake Beach
  • Summit Lake SP – Summit Lake Beach

What Alerts Mean

Low Risk: Don't drink the water. Shower After you swim. Indicated with blue diamond on sign.

Advisory: Swimming and boating permitted. Avoid contact with algae. Avoid swallowing water while swimming. Take a bath or shower with warm soapy water after coming in contact with lake water. Do no use lake water for cooking or bathing. Do not allow your pets to swim or drink water where algae are present. Indicated with yellow diamond on sign.

Caution: Follow all advisory level precautions. Children and those with compromised immune systems should not swim. Indicated with orange diamond on sign.

Closed: Algae and toxin levels make beach currently unsafe for swimming. Indicated with red diamond on sign.

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