Transparency Times: Newsletter of the Citizen Lake and Citizen Stream Monitoring Programs
Minnesota Pollution Control Agency sent this bulletin at 06/07/2012 03:17 PM CDT
Citizen Lake Monitoring Program News
|
![]() CLMP sampling remindersCheck out our Citizen Lake
Monitoring Program Training Videos for a
monitoring refresher! Also, additional monitoring and program information can be found in the Citizen Lake Monitoring Program Instructional Manual.
As you know, weekly
readings help create a robust dataset, particularly for statistical
analysis. If you’re unable to collect weekly readings, please try to
collect at least two readings per month.
Here are a few reminders to ensure that you
collect the most accurate water quality data:
|
- If you’re able, try to take your readings between the hours of 10 a.m. and 3 p.m. on bright, calm days.
- To reduce the impact of glare, take your reading on the shaded side of your boat and without wearing sunglasses.
-
The “PC” and “RS” columns on your
datasheet are for recording “Physical Condition” and “Recreational
Suitability.” The PC and RS scales are located on the back of your datasheets.
These should be recorded before taking your Secchi disk reading.
- Your Secchi disk rope is marked in feet. Red lines indicate ½ foot intervals, black lines indicate 1 foot intervals, and double black lines indicate 5 foot intervals. Round your reading to the nearest ½ foot.
Thank you for your continued monitoring with the CLMP. Have a safe and fun summer on the lake!
Important site information for CLMP volunteers
Knowing your site number is important for accessing the new online Citizen Monitoring
Individual Site Report Tool, as well as completing the Citizen Lake Monitoring Program Electronic Datasheet. Site numbers are comprised of the lake number followed by a three digit site I.D. Consequently, the site number is no longer a three digit number, rather it is now an eleven digit number as seen in the example below. While the number appears lengthy, it helps all of us better track your data and when using the new site number, you can be assured lake data collected at specific CLMP site is specific to your site.

Citizen Stream Monitoring Program News
![]() Secchi tube transition complete!In March the MPCA sent approximately 500 Secchi tubes to
CSMP volunteers, replacing the old, 60 and 100 cm transparency tubes used since
the program began in 1998. This switch to the Secchi tube will greatly improve the
quality and usability of stream transparency data.
We had two primary goals for disposal of the old tubes: to
ensure that they are no longer used to measure stream transparency,
and to reuse or recycle as much of the materials as possible in an effort to reduce waste. We
had an amazing response to our call for returning old tubes, with about 400 of
the 60-cm tubes and approximately 200 of the longer tubes received. Thank you! The plastic tubes, mini Secchi disks, and rubber corks will all be
recycled, and the screws will be re-used.
Next steps include
finalizing the comparison of transparency tube and Secchi tube data to determine if
a conversion factor is needed, and developing a system for using Secchi tube
data to assess compliance with sediment related water quality standards for
rivers. For more information on the Secchi tube and reasons for making the switch, visit the Secchi tube webpage.
We hope you’ve had a chance to get out and use your new Secchi tube to
measure transparency on your river or stream!
|
![]() |
WANTED: Photos of Secchi tube monitoring in action!We need your help building a photo library of our citizen scientists in action!
Please send us photographs of you using the new Secchi tube by either emailing
electronic images as attachments to the CSMP mailbox at csmp.pca@state.mn.us, or mail hard copy
photographs to the Citizen Stream Monitoring Program at MPCA, 520 Lafayette Rd
N, Saint Paul, MN 55155.
Please note: All images submitted will be used in
various CSMP materials to promote and increase understanding and awareness of
the program.
|
CSMP sampling remindersCheck
out our Citizen Stream Monitoring Programs
Training Videos for a monitoring refresher! As you monitor your stream’s transparency this summer, here are a few reminders to ensure
that you collect the most accurate data:
Weekly
readings help ensure a robust dataset, particularly for statistical
analyses. If you’re unable to collect weekly readings, please try to
collect at least two readings per month.
Thank you for your continued monitoring. Have a safe and fun summer on the water!
|
![]() |
Questions? Contact csmp.pca@state.mn.us
& clmp.pca@state.mn.us or call 651-296-6300 (Twin Cities) and 800-657-3864 (Greater Minnesota).







