Monthly Water Sampling Results for Turkey River @ Highway 13

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 Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L
10/27/15 10:40 Brad Crawford 10.0 50.0 60+ 0.07 4.1 31 201 5.31 1.3 22.5 26.2
09/29/15 12:40 Brad Crawford 19.4 66.9 60+ 0.08 3.4 265 269 5.55 5.3 19.6 23.0
08/25/15 10:35 Brad Crawford 0.07 4.3 41 11 19.7 24.2
07/28/15 10:50 Brad Crawford 23.3 73.9 49 0.11 5.5 228 3.5 17.7 21.2
06/30/15 12:15 Ross Evelsizer 21.2 70.2 18 0.21 12.0 906 82 19.4 22.9
11/05/14 11:00 Brad Crawford 8.19 <29 7.5 45.5 60+ 12 0.06 7.2 20 388 5.95 0.3
10/01/14 14:00 Brad Crawford 8.18 15.8 60.4 60+ 0.06 5.9 <10 269 5.77
10/01/14 14:00 Brad Crawford 8.18 15.8 60.4 60+ 0.04 5.9 31 269 5.77 0.5
09/03/14 13:40 Brad Crawford 8.4 <29 22.3 72.1 42 10 0.14 5.4 160 516 6.29
09/03/14 13:35 Brad Crawford 8.4 <29 22.3 72.1 40 10 0.13 5.3 120 511 6.28 0.7
08/06/14 13:25 Brad Crawford 8.34 <29 22.2 72.0 45 0.07 7.0 31 538 5.66 0.6
07/09/14 10:40 Brad Crawford 8.38 <29 19.1 66.4 15 8 0.18 12.0 800 2080 7.73 0.7
06/04/14 10:20 Brad Crawford 8.16 <29 20.3 68.5 60+ 8 0.13 7.3 160 714 6.08 0.4
05/07/14 10:15 Brad Crawford 8.3 <29 12.3 54.1 33 10 0.12 12.0 75 1920 0.7
04/02/14 11:05 Brad Crawford 8.24 <29 4.7 40.5 6 10 0.53 3.2 10 2800 1.7
11/06/13 09:58 Brad Crawford & Richard Kittelson 8.57 <30 7.7 45.9 60+ 10 0.11 6.8 63 <0.05 409 5.27
10/16/13 11:30 Brad Crawford 7.63 <30 11.7 53.0 60+ 9 0.07 6.8 86 <0.05 383 5.21
09/04/13 09:50 Brad Crawford and Dave Pahlas 8.25 <30 19.8 67.6 40 10 0.08 5.8 41 <0.05 324 5.2
08/07/13 09:26 Brad Crawford and Dave Pahlas 8.14 <30 21.5 70.7 19 8 0.25 6.3 8700 0.11 947 6.32
07/10/13 14:30 Brad Crawford 8.3 23.9 75.0 20 0.16 8.8 1100 0.05 1600
06/05/13 10:55 Brad Crawford and Dave Pahlas 8.04 <30 13.8 56.8 18 10 0.25 13.0 790 <0.05 2480 8.34
05/01/13 10:15 Brad Crawford 8.27 30 16.6 61.9 51 11 0.09 11.0 110 <0.05 1020 6.71
04/10/13 11:25 Brad Crawford, Dave Pahlas 8.13 <30 5.4 41.7 5 10 0.74 3.5 4600 0.21 2120 7.98
11/07/12 13:15 8.5 <33 6.6 43.9 60+ 12 0.04 3.7 10 <0.05 142 5.04
10/03/12 14:05 8.66 <33 16.6 61.9 60+ 12 0.1 2.7 <10 <0.05 120 4.95
09/05/12 13:36 8.41 <33 22.4 72.3 32 12 0.14 2.2 2500 <0.05 177 5.17
08/01/12 14:40 <33 25.6 78.0 23 12 0.15 2.0 74 <0.05 194
07/02/12 09:45 8.02 <33 25.6 78.0 36 8 0.12 5.2 130 <0.05 249
06/06/12 12:35 <33 23.3 73.9 33 12 0.1 9.4 110 <0.05 591
05/02/12 14:15 7.96 <33 17.8 64.0 15 10 0.24 8.4 7700 <0.05 1320
04/04/12 14:22 8.45 <33 15.5 59.9 60+ 9.8 0.05 4.8 10 <0.05 387
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Yearly Averages for Turkey River @ Highway 13 (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 Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L
All Years 8.3 (8.3) <33 (<33) 16.9 (15.6) 62.3 (60.1) 44 (53) 10.2 (8.6) 0.15 (0.19) 6.5 (6.5) 141 (376) 0.06 (0.09) 852 (648) 6.0 (5.4) 21 (20) 0.7 (0.622) 19.78 (22.17) 23.5 (23.58)
2015 Mean (8.3) (<33) 18.5 (17.3) 65.3 (63.1) 53 (53) (7.2) 0.11 (0.23) 5.9 (6.1) 147 (442) 235 (396) 5.4 (4.5) 21 (20) 19.78 (22.17) 23.5 (23.58)
2014 Mean 8.3 (8.2) <33 (<33) 15.5 (14.6) 59.9 (58.3) 44 (57) 9.7 (8.4) 0.16 (0.18) 7.5 (7.3) 62 (196) 1153 (761) 6.2 (5.4) 0.7 (0.622)
2013 Mean 8.2 (8.2) <33 (<33) 15.1 (13.6) 59.1 (56.5) 37 (46) 9.7 (8.8) 0.22 (0.27) 7.8 (7.6) 413 (960) 0.07 (0.13) 1160 (965) 6.4 (6.1)
2012 Mean 8.3 (8.3) <33 (<33) 19.2 (17.4) 66.5 (63.3) 44 (51) 11.0 (8.8) 0.12 (0.17) 4.8 (4.8) 106 (374) <0.05 (0.07) 398 (361) 5.1 (4.6) (16)

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 17.2% 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 31.0% 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).

One-time Rainfall Event Samples for Turkey River @ Highway 13 (Not part of above statistics)

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 Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L
05/30/13 13:10 Brad Crawford & Ross Evelsizer 8.04 17.0 62.6 1 3.0 6.0 0.33 10300 15.05
03/11/13 14:10 Gary Siegwarth 8.6 <33 0.9 33.6 6.5 0.94 0.72 6500 1.2 5850 11.75

Site Information

NameTurkey River @ Highway 13
CodeTR-28
CountyClayton
Latitude42.8432
Longitude-91.4006
UTM_X630698.0
UTM_Y4744645.0
NotesUSGS Station, Water Samping Site Added April 2012
HUC_87060004
USGS Gagewaterdata.usgs.gov/usa/nwis/uv?site_no=05412020
Sampled byNortheast Iowa Resource Conservation and Development

Sampling Location

Photos from TR-28

Nearby Sampling Locations

← Upstream