Toxic Blue-green Algae and Bacteria Sampling Results


Note: The September 28, 2006 sampling results are the final results for 2006.
DEQ will resume sampling for toxic algae and bacteria in May 2007.

The Department of Environmental Quality (DEQ) is conducting weekly and bi-monthly sampling for toxins and bacteria at a number of public recreational lakes across Nebraska, and the results will be updated weekly, usually on Fridays. Depending on circumstances, there may be additional lakes added to the weekly sampling schedule.

Samples taken: week of September 25, 2006 (unless noted otherwise)
Analysis completed: September 28, 2006

The analysis of recent sampling shows that the following lakes are currently considered in Health Alert status for toxic blue-green algae:

Pawnee Reservoir near Emerald (west of Lincoln)

The map below shows the locations of the 35 lakes that are being regularly sampled from May through September 2006. Below the map is a chart that lists the lakes that were sampled, and the level of toxin found at the lake.
Lake # on Map
Lake Name
County
Date Sampled
Level of Microcystin (ppb)
Toxic Algae Health Alert?
***E. coli Bacteria, Col./100 ml
Bader Memorial Park Lake at Swimming Beach
Merrick
9/25/06
0.00
No
0
1
Big Indian Res. at Swimming Beach
Gage
9/18/06
0.75
No
No result available
2
Bluestem Reservoir at Swimming Beach
Lancaster
9/25/06
0.08
No
14
3
*Box Butte Res. at North Swimming Beach
Dawes
9/25/06
0.00
No
6
4
Branched Oak Lake at Area 10 & Liebers Point Beaches
Lancaster
9/25/06
Area 10 – 0.04

Lieber’s Pt – 0.07
No
Area 10 – 517

Lieber’s Pt. – 77
5
Bridgeport Middle Lake at Swimming Beach
Morrill
9/11/06
0.06
No
3
6
**Carter Lake at North Boat Ramp
Douglas
9/25/06
6.55
No
5
7
Conestoga Res. at Boat Ramp
Lancaster
9/25/06
0.43
No
2
8
Cub Creek Reservoir #12A at Swimming Beach
Jefferson
9/18/06
0.05
No
No result available
9
Elwood Reservoir at Boat Ramp
Gosper
9/11/06
0.06
No
15
10
Fremont Lake #9 at Fremont Beach
Dodge
9/25/06
0.10
No
6
11
Fremont Lake #10 at Brick’s Bay Beach
Dodge
9/25/06
0.14
No
1
12
Fremont Lake #20 at East & West Beaches
Dodge
9/25/06
East – 13.42
West – 12.54
No
East - 3

West - 3
13
Glen Cunningham Lake at Marina Boat Ramp
Douglas
Will not be sampled during 2006 due to lake renovation
Holmes Lake at North Shore
Lancaster
9/25/06
0.01
No
18
Hugh Butler Lake (Red Willow) at Swimming Beach
Frontier
9/25/06
0.00
No
Not Sampled for Bacteria
14
Iron Horse Trail at Iron Horse Beach
Pawnee
9/25/06
1.05
No
146
15
Johnson Res. at Southeast Beach
Gosper
9/25/06
0.00
No
No result available
16
Kirkman’s Cove at Swimming Beach
Richardson
9/25/06
0.12
No
186
17
**Lewis & Clark Reservoir at Weigand Beach
Knox
9/26/06
0.00
No
35
18
Louisville Lake #2 Swimming Beach
Cass
9/25/06
0.00
No
2
19
Lake McConaughy at Martin’s Bay Beach
Keith
9/25/06
0.13
No
6
20
Maloney Res. at
Outlet Beach
Lincoln
9/18/06
0.12
No
No result available
21
Maskenthine Lake Swimming Beach
Stanton
9/11/06
0.82
No
12- sample collected 9/25
22
*Merritt Reservoir Swimming Beach
Cherry
9/18/06
2.47
No
2
23
Lake Minatare at Lighthouse Point Swimming Beach
Scotts Bluff
9/11/06
0.08
No
11
24
Morman Island Lake at Swimming Beach
Hall
9/25/06
0.00
No
4
25
Lake North at NW Swimming Beach
Platte
9/20/06
Not Sampled for Toxic Algae
No
42
26
*Oliver Res. at Swimming Beach
Kimball
9/11/06
0.10
No
0 – sample collected on 9/25
27
Pawnee Res. at East & West Beaches
Lancaster
9/25/06
East – >55
West – >55
Yes
East – 155
West – 31
Silver Creek City Pond at Swimming Beach
Merrick
9/25/06
0.00
No
6
28
Sutherland Res. at Hershey Beach
Lincoln
9/25/06
0.00
No
No result available
29
Swan Creek Reservoir 5A at Swimming Beach
Saline
9/18/06
4.29
No
No result available
30
Two Rivers SRA Lake #4 at
Swimming Beach
Douglas
9/25/06
0.00
No
6
31
*Valentine Mill Pond
Cherry
9/18/06
0.04
No
29
32
Wagon Train Lake at Swimming Beach
Lancaster
9/25/06
0.00
No
10
33
Willow Creek Reservoir at Swimming Beach
Pierce
9/11/06
0.16
No
111 – sample collected on 9/25
34
Wirth Brothers Lake at Swimming Beach
Johnson
9/25/06
0.00
No
830
35
**Lake Yankton (Cottonwood) at Training Dike Swimming Beach
Cedar
9/26/06
0.01
No
0
Other lakes previously sampled:
Lake Name
County
Date Sampled
Most Recent Microcystin Value (ppb)
Box Butte Reservoir @ Boat Ramp
Dawes
6/19/06
0.0
Box Butte Reservoir @ Mid-Lake
Dawes
9/20/06
0.08
Burchard Lake
Pawnee
8/15/06
At dam - .92
At dock – 14.52
At NW cove - .52
Czechland Reservoir at Boat Ramp
Saunders
6/11/06
0.11
Davis Creek Reservoir @ Mid-Lake
Valley
9/18/06
0.08
Enders Reservoir @ Mid-Lake
Chase
9/14/06
0.05
Enders Reservoir @ Boat Ramp
Chase
8/16/06
0.20
Harlan County Reservoir @ Mid-Lake
Harlan
9/11/06
0.10
Harlan County Reservoir @ Beach
Harlan
8/15/06
0.06
Hugh Butler Lake (Red Willow)
@ Mid-Lake
Frontier
9/13/06
0.03
Hugh Butler Lake (Red Willow)
@ Boat Ramp
Frontier
6/19/06
0.06
Johnson Lake @ Mid-Lake
Gosper
9/5/06
0.20
McConaughy @ Boat Ramp
Keith
6/19/06
0.0
McConaughy @ Mid-Lake
Keith
7/25/06
0.21
An explanation of Health Alert: This designation means that the state believes that the level of toxins in the water make it unsafe for full-body recreational activities, such as swimming.

During a Health Alert at a public lake, signs will be posted advising the public to use caution. Affected swimming beaches will be closed. Boating and other recreational activities will be allowed, but the public will be advised to use caution and avoid prolonged exposure to the water, particularly avoiding any activity that could lead to drinking the water.

The level established in 2005 for a Health Alert is 20 parts per billion of the toxin Microcystin. Lakes under Health Alert will be sampled weekly, and the Health Alert will stay in effect until the level stays below 20 parts per billion for two consecutive weeks.
Click here for more information about toxic algae and its potential health effects.

*An explanation of bacteria data: In addition to sampling for toxins, DEQ concurrently samples for bacteria at public lakes and beaches. Click here for more information about bacteria and its potential health effects.
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Nebraska Department of Environmental Quality
1200 "N" Street, Suite 400
P.O. Box 98922
Lincoln, Nebraska 68509
(402) 471-2186