The Missouri Department of Natural Resources has given the two public beaches in Lake of the Ozarks State Park the green light.


Public Beach No. 1 and Grand Glaize Beach will be open for use this weekend. Grand Glaize Beach has been closed for much of the season due to elevated levels of E. coli in water samples.


The Missouri Department of Natural Resources has given the two public beaches in Lake of the Ozarks State Park the green light.

Public Beach No. 1 and Grand Glaize Beach will be open for use this weekend. Grand Glaize Beach has been closed for much of the season due to elevated levels of E. coli in water samples.

Samples for state park beaches are taken the first of each week and processed and analyzed at DNR's Environmental Services Program laboratory in Jefferson City. Full beach data will be updated by 1 p.m. Friday, though some closure notifications may be made before that time, as results are available.

The Missouri Department of Natural Resources closes beaches when single samples exceed the EPA recommended maximum of 235 E. coli colonies per 100 milliliters of water (235 mpn/100ml) or when the geometric mean — a rolling average of sample data — exceeds 126 E. coli colonies per 100 milliliters of water (126 mpn/100ml).

Park Name: Lake of the Ozarks Grand Glaize Beach
Status: Open
Sample Taken: July 25
Results 1: 4.1 mpn/100ml
Results 2: 5.1 mpn/100ml
Duplicate Sample: N/A mpn/100ml
Geomean: 40.1 mpn/100ml
Notes:

Park Name: Lake of the Ozarks Public Beach 1
Status: Open
Sample Taken: July 25
Results 1: 4.1 mpn/100ml
Results 2: 1.0 mpn/100ml
Geomean: 7.7 mpn/100ml

Lake of the Ozarks Grand Glaize Beach
Status: Open
Sample Taken: July 25
Results 1: 4.1 mpn/100ml
Results 2: 5.1 mpn/100ml

Geomean: 40.1 mpn/100ml