Lake Michigan environmental survey : final report / [edited] by John C. Ayers.

Table C-7
SUMMARY TABLE
Inputs, via 19 major tributaries in 1963-64, of
Inputs in pounds per day. Data of USPHS.
Actual Sum
Ammonia-Nitrogen 75,105
Nitrate-Nitrogen 58,963
Organic-Nitrogen 53,305
Total Soluble P04 24,061
Silica (Si02) 737,648
Total Dissolved Solids 27,485,694
Total Suspended Solids 1,913,980
Calcium 4,685,019
Chloride 1,927,912
Sulphate 4,290,971
Sodium 1,150,493
Potassium 224,703
Magnesium 1,551,221
MBAS (detergents) 11,767
Copper 8,309
Nickel 2,375
Zinc 1,208

materials into Lake Michigan.
Accepted Value
75,000
59,000
53,000
24,000
738,000
27,486,000
1,914,000
4,685,000
1,928,000
4,291,000
1,150,000
225,000
1,551,000
12,000
8,000
2,000
1,000

C-10