Monthly Water Sampling Results for Turkey River @ Elkader

Sample Date by pH

Chloride mg/L Celsius C Fahrenheit F Transparency cm DO mg/L P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Discharge cfs Gage Height ft
11/02/11 14:40 8.26 <33 9.8 49.6 60+ 12 0.06 4.6 110 <0.05 219
10/05/11 09:50 8.15 <33 13.4 56.1 60+ 10 0.05 4.7 <10 <0.05 213
09/07/11 09:45 8.23 <33 16.5 61.7 26 7 0.16 4.9 930 <0.05 274
08/03/11 09:10 8.05 <33 24.9 76.8 36 7 0.1 5.3 240 <0.05 344
07/06/11 13:05 8.38 <33 24.8 76.6 35 7 0.22 7.9 86 <0.05 574
06/01/11 09:35 8.3 <33 18.0 64.4 30 7 0.14 11.0 230 <0.05 1530
05/04/11 15:45 8.2 <33 12.1 53.8 55 7 0.09 9.9 10 <0.05 1740
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Yearly Averages for Turkey River @ Elkader (with comparison to all sites in the watershed)

pH

Chloride mg/L Celsius C Fahrenheit F Transparency cm DO mg/L P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Discharge cfs Gage Height ft
All Years 8.2 (8.3) <33 (<33) 17.1 (15.6) 62.7 (60.1) 47 (53) 8.1 (8.6) 0.12 (0.19) 6.9 (6.5) 87 (376) <0.05 (0.09) 699 (648) (5.4)
2011 Mean 8.2 (8.3) <33 (<33) 17.1 (15.9) 62.7 (60.7) 47 (58) 8.1 (9.0) 0.12 (0.1) 6.9 (6.4) 87 (237) <0.05 (0.06) 699 (554)

How to Read the Table

GREEN: Better than average water quality compared to other sites in the watershed

BLACK: Average water quality compared to other sites in the watershed or N/A

RED: Worse than average water quality compared to other sites in the watershed

GRAY: The average value from all sites in the watershed. Useful for comparison.

*All averages are arithmetic means, except for E. Coli and/or Fecal Coliform, which are calculated as geometric means. For purposes of calculating a mean, values that exceed the measurement limit (e.g., <0.05, 60+, <33) are assumed to be 20% greater or less than their limit (e.g., 0.04, 72, 26.4).

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Water Quality Standards

For 14.3% of the data records, Nitrate+Nitrite exceeded 10 mg/L. 10 mg/L represents the U.S. Public Health Service recommended limit of 10 mg/L NO3-N (nitrate-nitrogen) in drinking water.

For 28.6% of the data records, E. coli bacteria exceeded 235 CFU/100 ml. 235 CFU/100 ml represents Iowa's single sample maximum water quality standard for primary contact recreational use (Class A1), secondary contact recreational use (Class A2), and children's recreational use (A3).

Site Information

NameTurkey River @ Elkader
CodeTR-30
CountyClayton
Latitude42.8598
Longitude-91.4067
UTM_X630165.0
UTM_Y4746474.0
NotesIn Elkader, Water Trail Access #39A, Decommissioned Nov 2011
HUC_87060004
USGS Gagewaterdata.usgs.gov/usa/nwis/uv?site_no=05412020
Sampled byNortheast Iowa Resource Conservation and Development

Sampling Location

Photos from TR-30

Nearby Sampling Locations

Downstream →