Home / Water / Lagoon Drowning Risks

Lagoon Drowning Risks

Drowning in a lagoon is different from drowning in a pond, and that difference makes prevention essential. This guide explains why, in general terms.

What makes drowning in a lagoon different?

The contents of a lagoon are thicker than water, and a person cannot swim in it as in a pond. Clothes and boots become heavy, and the slick, steep sides make climbing out extremely difficult. Floating crust may hide the edge.

Gases may also affect a person near the lagoon, which adds danger beyond drowning. For these reasons, prevention matters far more than any plan for response.

The mix of heavy clothing, boots and a crust of floating material can trap a person quickly. Because of this, no clothing or footwear choice makes a lagoon safe to enter. Even a small lagoon can be deadly, so size should never be used to decide whether the hazard is serious.

• Thick contents hinder swimming.
• Banks are slick and steep.
• Gases add to the danger.

Who is most at risk?

Children, workers doing sampling or maintenance, people retrieving equipment or animals, and anyone unfamiliar with the farm are at risk. Fatigue, heat and hurry also play a role.

Pets and livestock can wander near. Do not let an animal's distress lead you into a dangerous move. The animal can be replaced; a person cannot.

Teenagers who help with farm work may be asked to do tasks near the lagoon. Confirm youth work rules with the U.S. Department of Labor and keep teens away from hazardous work unless the rules clearly allow it.

• Children and visitors.
• Workers on maintenance tasks.
• People trying to help animals.

What prevention measures help most?

Barriers keep people away from the edge. Fences, locked gates and warning signs set a clear boundary. What type of fence is required or recommended varies by state and by the agency, so check local rules.

Rules for who goes near the lagoon matter just as much. Keep a short list of people authorized for lagoon tasks, and make sure they are trained.

Talk with a trusted professional about edge stability. Banks that look solid may give way under the weight of a person or machine.

• Install and maintain barriers.
• Limit access to trained people.
• Check local fencing rules.

How should work near the lagoon be planned?

Before any task near the lagoon, plan how the job will be done without anyone entering or leaning over the edge. Do not work alone, and make sure someone knows where you are and when you will be done.

Do not use ladders, planks or makeshift platforms over or near the lagoon. Ask your extension office about safe sampling methods and equipment.

Pick a safe spot to stand, with a clear, firm footing, and keep tools on long handles when possible. Do not lean over water to reach an item. If a job cannot be done safely from outside the fence line, stop and ask a professional how to do it, even if that delays the work.

• Plan the task in advance.
• Use a buddy or check-in system.
• Avoid makeshift platforms.

How can you talk with children and visitors?

Explain that the lagoon is not a pond and nobody goes near it. Keep the message simple and consistent. Remind visitors at the start of each visit.

Older children and teens need an honest conversation about the danger. Invite their questions.

Revisit the conversation when conditions change, for example when a new building goes up or workers change.

• Keep the message simple.
• Remind visitors each visit.
• Talk openly with teens.

What should you do if a person or animal falls in?

Call 911 immediately and give a clear location. Do not enter or reach over the lagoon. Keep others back. This article does not give rescue instructions, because improvised rescue has put rescuers in danger. Trained responders have the equipment and training.

Tell the dispatcher it is a manure lagoon so responders can prepare for the hazards. Follow the dispatcher's directions.

Do not allow bystanders to crowd the area. More people near the edge means more risk, and responders need room. Be ready to describe the location by landmark, gate and road, and assign someone to meet responders at the entrance and open the gate.

What about training and planning?

Ask your fire department, extension office and farm safety organizations about training for large-scale rescue awareness. Plan with the household and workers, and practice the 911 call.

After any incident or near miss, review and improve. NIOSH and extension publications explain the hazards of manure storage.

Consider talking with neighbors who also have lagoons. Shared experience and local meetings can reveal practical ideas.

Last reviewed: November 12, 2026. Written by the Farm Safety Editorial Team. See our editorial policy.