3
you want to find specific depth, dissolved oxygen, and temperature combinations. I find
dissolved oxygen and temperature data most useful if simply left in a data table.
The following comments are by section:
Executive Summary
1. Several typographical errors in the Executive Summary.
See comments in text (the report has been included).
(a)(1) Lake Identification and Location
1. Table 1. The parameters “Surface Area” and “Watershed Area” are not in line
with the description. Move them up a line.
2. The total watershed area for the lakes does not match that provided in Table 6.
Table 1 eliminates the water surface area in the total. This acreage should be
included in the total watershed area reported.
(a)(2) Geological and Soils Description of Drainage Basin
1. Requirement met.
(a)(3) Description of Public Access
1. Need tables and more descriptions – see comments in text.
(a)(4) Description of Size and Economic Structure of Potential User Population
1. Need tables and/or graphs to help better present the population info. – see
comments in text.
(a)(5) Summary of Historical Lake Uses
1. Include public water supply usage in the table.
2. Add user day information to the table for some of the uses (i.e. swimming,
fishing).
3. Elaborate on the studies (and their value) done by SIUC. See comments in text.
4. There is no analysis of the relationship between historical trends in lake water
quality, uses, and usage.
(a)(6) Population Segments Adversely Affected by Lake Degradation
1. Elaborate and clarify – see comments in text.
(a)(7) Comparison of Lake Uses to Uses of Other Lakes in Region
1. Add the missing items to Table 4 – see comments in text.
(a)(8) Inventory of Point Source Pollution Discharges
1. Need more information in tables & text.
2. Need a map of the watersheds showing discharge points. See comments in text.
(a)(9) Land Uses and Nonpoint Pollutant Loadings
1. See comments in text.
(a)(10) Baseline and Current Limnological Data
1. See comments in text.
2. Spell out Secchi disk transparency depth (not just Secchi depth).
3. Please note that there is a numeric water quality standard for pH.
Measurements from both lakes exceed the numeric pH standard during the