Rockford Lake (SRA) Southeast Beach (Sampling Site 36)

The table below shows the most recent sampling information for  toxic algae (Microcystin) and bacteria (E.coli) ,
Samples are typically collected on Monday and posted on the web site on Thursday or Friday.

Nearest City - Holmesville Gage County
This Lake is Sampled Weekly.
Toxic Algae Data updated on:
7/12/18
Bacteria (E. coli) data updated:
7/12/18
Level of Microcystin (ppb) E. coli (# per 100 ml)
1.59 1
Toxic Algae (Microcystin) Information
For more information about toxic algae and its potential health effects.
Bacteria (E. coli) Information
For more information about bacteria and its potential health effects.
This Lake is NOT on Toxic Algae Health Alert.


On the table below, the level to trigger a toxic algae Health Alert is 20 parts per billion for the toxin Microcystin. Health Alerts stay in effect until the level stays below 20 ppb for two consecutive weeks
In the Bacteria (E.coli) column, a single sample of 235 counts (or higher) per 100 ml is considered a higher risk for illness through ingestion
.
Week Starting Weekly Health Alert Level of Microcystin (ppb) E. coli (# per 100 ml)
May 7, 2018 No 0 24
May 14, 2018 No 0 29
May 21, 2018 No 0 5
May 28, 2018 No 1.09 2
June 4, 2018 No 0.63 0
June 11, 2018 No 0.22 0
June 18, 2018 No 0 3
June 25, 2018 No 0.12 6
July 2, 2018 No 0 8
July 9, 2018 No 1.59 1
July 16, 2018
July 23, 2018
July 30, 2018
August 6, 2018
August 13, 2018
August 20, 2018
August 27, 2018
September 3, 2018
September 10, 2018
September 17, 2018
September 24, 2018
October 1, 2018