#16 MEASURING THE HEALTH OF OUR FRESH WATERS

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Title of Water:Missouri River

Type of Water: __ stream _x_river __lake

Nearest Town, City: State: Chamberlain, South Dakota

Description of Site: Raining outside, slow river, wide, no visible current (lakes and damming further upstream), docks nearby with small boats, river grass on edges and floating near docks, small pebbles at river's edge, greenish brown color.

Elevation: 1275 feet

Date: July 28, 1997 Time of Day: 12:30 pm

Temperature: 22 C

Ph: 8.04

Dissolved Oxygen: 12.03

TDS: 35.53

Current Speed:

Who to contact in the area with the data results and concerns:

editor@argusleader .com

Factor

Measured at

Q Score

Times the Q value

Final Quotient

Dissolved Oxygen

12.03 or 142 % sat

79

.38

30

PH

8.04

85

.24

20.4

TDS (conductivity)

35.53

88

.16

14.1

Temperature

22 C

18

.22

4

The Total Water Quality Index for the Missouri River in South Dakota was 68.5 which is above average. Strongest scores were in acidity and conductivity. The temperature was too warm, which brought the water quality index score down.