Is the lake safe?

Polk County, Florida

Parker Crago Canal algae bloom status

No bloom seen

Latest state sample, 4 June 2025

Is Parker Crago Canal safe to swim in?

Florida's most recent sample from Parker Crago Canal, on 4 June 2025 at Parker Crago Canal, found no visible bloom and no microcystin toxin was detected. All of the reports here come from 2025, so Parker Crago Canal has a short bloom history in the state's records.

No recent report isn't the same as safe, because most lakes are only checked occasionally. Look at the water and the signs before you swim.

Check today on the DEP Algal Bloom Dashboard
Years with blooms
1 of 1
Highest toxin level
3µg/L
Data checked
24 October 2026

Parker Crago Canal algae bloom history

Florida's Department of Environmental Protection sampled Parker Crago Canal 7 times between 2025 and 2025. Staff saw a bloom on 2 visits (29%).

The highest microcystin result recorded here was 3 µg/L, below the US EPA swimming advisory level of 8 µg/L.

  1. 2025 2 of 7 visits
Toxin detected Visits with no bloom seen

When do algae blooms happen at Parker Crago Canal?

Reports are spread across the year, with 50% between May and September.

Blooms can appear, move with the wind and fade within hours or days, so the time of year is only a guide.

January: 0% of reports
February: 0% of reports
March: 50% of reports
April: 0% of reports
May: 50% of reports
June: 0% of reports
July: 0% of reports
August: 0% of reports
September: 0% of reports
October: 0% of reports
November: 0% of reports
December: 0% of reports
Share of reports by month. Darker bars are the peak months.

Recent Parker Crago Canal algae reports

DateLocationResult
4 June 2025 Parker Crago Canal No bloom seen · microcystin not detected
28 May 2025 Parker Crago Canal No bloom seen · microcystin not detected
13 May 2025 Parker Crago Canal Bloom seen · microcystin 0.64 µg/L
5 May 2025 Parker Crago Canal No bloom seen · microcystin 0.93 µg/L
21 April 2025 Parker Crago Canal No bloom seen · microcystin 0.95 µg/L
9 April 2025 Parker Crago Canal No bloom seen · microcystin 1 µg/L
24 March 2025 Parker Crago Canal Bloom seen · microcystin 3 µg/L

What the Florida results mean

Florida records whether staff saw a bloom at each visit and, when a sample is tested, how much microcystin it contained.

Bloom seen
Staff saw a bloom at the sampling site, and no toxin was found or tested.
Toxin detected
Microcystin, a liver toxin made by blue-green algae, was found in the sample.
8 µg/L or more
At or above the level where the US EPA recommends swimming advisories.

Is Parker Crago Canal safe for dogs?

Dogs are at the greatest risk from toxic algae. They swallow water while swimming, eat scum on the shore and lick algae off their fur afterwards, and a small amount can kill a dog within hours.

  • Keep your dog on a lead near water that looks green, scummy, foamy or discoloured, and away from algae washed up on the shore.
  • If your dog gets in, rinse it straight away with clean water and don't let it lick its coat.
  • Call a vet immediately if your dog vomits, drools, has diarrhoea, staggers, shakes or seems weak after being near the water.

Health effects of toxic algae

Blue-green algae (cyanobacteria) can produce toxins that affect the liver, nervous system and skin. Swallowing water during a bloom can cause stomach pain, vomiting and diarrhoea. Skin contact can cause rashes, and breathing spray from the water can irritate the eyes, nose and throat. Children are at higher risk because they are smaller and more likely to swallow water.

How to spot a bloom

Toxic blooms can look like pea soup, spilled paint or green streaks on the surface, and they can also be blue, brown, white or red. Scum often collects along the shore downwind. If you can't see your feet in knee-deep water, or you aren't sure, stay out.

Don't drink untreated lake water, and don't boil it to make it safe: boiling doesn't destroy algal toxins. If you feel unwell after contact with the water, contact a doctor or Poison Control on 1-800-222-1222.

Nearby lakes with algae reports

All Polk County lakes with algae reports

Questions about Parker Crago Canal

Is there algae in Parker Crago Canal right now?

Florida's most recent sample from Parker Crago Canal, on 4 June 2025 at Parker Crago Canal, found no visible bloom and no microcystin toxin was detected. Florida publishes its data in yearly batches, so for today's conditions check the DEP Algal Bloom Dashboard and the signs at the shore.

When was the last algae bloom at Parker Crago Canal?

The most recent entry in Florida's data is from 4 June 2025 at Parker Crago Canal: a sample with no bloom seen.

Has Parker Crago Canal had toxic algae before?

Reports for Parker Crago Canal come from 2025 only.

Can dogs swim in Parker Crago Canal?

Keep dogs out of the water whenever a bloom is reported or the water looks green, scummy or discoloured. Dogs are the animals most often killed by algal toxins because they swallow water and lick their fur. If your dog swims in water that might have algae, rinse it with clean water and call a vet if it vomits, drools, staggers or seems weak.

Can you eat fish caught in Parker Crago Canal during a bloom?

If you keep fish caught during a bloom, health agencies advise removing the guts and liver and rinsing the fillets in clean water before cooking, because toxins collect most in the organs. Some agencies advise not eating fish from an active bloom at all, so follow local guidance.

About this data

This page uses official records from the Florida Department of Environmental Protection (DEP), which published as a yearly file; current sampling is shown on the DEP dashboard. Reports are grouped by waterbody. The site was last rebuilt on 24 October 2026.

States only test some lakes, some of the time, so a lake without a recent report hasn't necessarily been checked. This page is independent, isn't affiliated with the State of Florida, and isn't health advice. View the source data.