Safe to Swim? See the Latest Missouri Lake Water Bacteria Results

I grew up in the Missouri generation that lived dangerously. We drank directly out of water hoses because we were daredevils. Yes, a little sarcasm here, but it's a real concern with the upcoming 4th of July holiday weekend about the latest status of lakes and beaches in Missouri. The state has the latest bacteria test results available.

The Missouri Department of Natural Resources has a helpful site and map showing the status of water areas that get tested regularly for nasty bugs like E. Coli. Here's the latest status as of this writing:

Wakonda SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 48.7

Result 2: 56.3

Duplicate Sample: N/A

Geomean: 52.4

Thousand Hills SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 18.7

Result 2: 14.5

Duplicate Sample: N/A

Geomean: 16.5

Long Branch SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 1

Result 2: 2

Duplicate Sample: N/A

Geomean: 1.4

Mark Twain SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 2

Result 2: <1.0

Duplicate Sample: N/A

Geomean: 1

Cuivre River SP - Lake Lincoln Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 59.1

Result 2: 10.9

Duplicate Sample: N/A

Geomean: 25.4

Finger Lakes SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 24.1

Result 2: 16

Duplicate Sample: N/A

Geomean: 19.6

Watkins Woolen Mill SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 3.1

Result 2: <1.0

Duplicate Sample: N/A

Geomean: 1.2

Harry S Truman SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 15.8

Result 2: 21.3

Duplicate Sample: N/A

Geomean: 18.3

Lake of the Ozarks SP - Grand Glaize Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 6.3

Result 2: 5.1

Duplicate Sample: N/A

Geomean: 5.7

Lake of the Ozarks SP - Public Beach #1

Sample Taken: 6/17/2024

Status: Open

Result 1: 32.3

Result 2: 33.1

Duplicate Sample: N/A

Geomean: 32.7

Pomme de Terre SP - Hermitage Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 4.1

Result 2: 14.6

Duplicate Sample: N/A

Geomean: 7.7

Stockton SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 1

Result 2: 1

Duplicate Sample: N/A

Geomean: 1

St. Joe SP - Monsanto Lake

Sample Taken: 6/17/2024

Status: Open

Result 1: 12.1

Result 2: 16

Duplicate Sample: N/A

Geomean: 13.9

Trail of Tears SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 86

Result 2: 72.3

Duplicate Sample: N/A

Geomean: 78.9

Lake Wappapello SP - Public Beach

Sample Taken: 6/17/2024

Status: Open

Result 1: 21.3

Result 2: 16.9

Duplicate Sample: N/A

Geomean: 19

The overall good news is that no major Missouri lakes or beaches have tested at a high enough bacteria level to make any warnings or advisories necessary, but it's good to check the beach status from the Missouri Department of Natural Resources site before planning your next water fun trip.