The Mackinaw River Basin: 125 miles long, 1,138 square miles drainage area, 99 fish species, 2 State Endangered: Lake Sturgeon and Blacknose Shiner, 1 State Threatened: American Brook Lamprey, 13 Species of Greatest Conservation Need (IWAP), 4 Exotic Species: Common Carp, Grass Carp, Bighead Carp, Silver Carp. PDF [2.65 MB]

Lake Springfield source water quality measureables: sediment/ clarity, Atrazine, Nitrates, Phosphorus, & Bacteria. PDF [796.67 KB]

The Muck Study: Hypothesis: Low dissolved oxygen and/ or a lack of benthic microorganisms is limiting organic sediment decomposition, resulting in sediment build-up. PDF [7.26 MB]

Like Anglers, Individual Lakes and Fish Populations are Usually Unique! PDF [7.22 MB]

WHO NEEDS AN NPDES PESTICIDE GENERAL PERMIT? The General NPDES permit applies to “operators” who apply pesticides to or over waters of the U.S. or at waters edge. Pesticide applications directly to or over waters of the U.S. PDF [116.3 KB]

The History of Clear Lake, CA: One of the oldest natural lakes in North America Giusti’s treatise regarding human influences on Clear Lake in the 20th century points to at least three activities that have caused major environmental problem in the lake beyond just HABs Routinely on the state’s HAB Incident Report Map. PDF [3.07 MB]

Agenda » Establish Current Conditions » Determine Fisheries Goals » Develop a Plan » Implement Plan » Assess Plan. PDF [1.43 MB]

Lake Decatur • Built in 1920-1922 by damming Sangamon River • Primary water supply for Decatur & Mt. Zion • 3,090 Acres, contains 9.7 billion gallons of water • Two water treatment plants use 34 MGD - City of Decatur and Archer Daniels Midland • 245 days or 8 months of water supply • 926 square mile watershed • 83% of watershed used for row crops. PDF [5.19 MB]

Importance of Watershed-Scale Planning for Water Quality: The climate is moving the goalpost, making planning and implementation critical for mission success. PDF [2.15 MB]

MOST COMMON METHOD: • High tech bathymetric mapping using sonar, get thousands of points ,Aquatic plants may reduce accuracy • Combined with old fashioned sediment probing with poles, Limited number of points. PDF [2.25 MB]