Volunteers with the Indiana Volunteer Lake Monitoring Program collect seven parameters. Field and laboratory protocols are described or linked below.
IN Volunteer Lake Monitoring Program contact:
Sarah Powers
Indiana Clean Lakes Program
Indiana University
1315 East 10th Street, Rm 375
Bloomington IN 47404
Office: (812) 855-7980
E-mail: sarellis@indiana.edu
Protocol information updated: July 2014
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Parameter
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Field Protocol
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Laboratory Protocol
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Chlorophyll a
|
Expanded Volunteer Lake Monitoring Manual, page 12
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Chlorophyll a concentration is determined using the acetone extraction, grinding, and spectrophotometric method in Standard Methods for the Examination of Water and Wastewater, 20th ed (Section 10200 H). A Varian model DMS-80 spectrophotometer is used for this analysis
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Dissolved
Oxygen (DO)
|
Volunteer Lake Monitoring Manual, page 13
|
Not applicable
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| Invasive Aquatic Plants |
Aquatic Invasive Species Manual |
Not applicable |
| Lake Level |
Volunteer Lake Monitoring Manual, page 5
|
Not applicable |
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Total
Phosphorus
|
Expanded Volunteer Lake Monitoring Manual, pages 12
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A 50-ml aliquot of sample is analyzed for total phosphorus by sulfuric acid-nitric acid digestion (Standard Methods for the Examination of Water and Wastewater, 20th ed, Section 4500-P B) on LabConCo Micro-Kjeldahl model 60300 digesters. The final phosphorus measurement is determined by the ascorbic acid method of colorimetry listed in Standard Methods for the Examination of Water and Wastewater, 20th ed (Section 4500-P E). A Varian model DMS-80 spectrophotometer is used in this analysis. Calibration is conducted with at least five serial dilutions of a standard phosphate solution and a solution blank.
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Transparency
(Secchi depth)
|
Volunteer Lake Monitoring Manual, page 6
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Not applicable
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| Water Color |
Volunteer Lake Monitoring Manual, page 5
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Not applicable |
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Water
Temperature
|
Volunteer Lake Monitoring Manual, page 13
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Not applicable
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