Monthly Water Sampling Results for Turkey River @ Main St./W14 (Spillville)

Sample Date by pH

Chloride mg/L Celsius C Fahrenheit F Transparency cm Turbidity ntu DO mg/L P mg/L Nitrite - IOWATER mg/L Nitrate - IOWATER mg/L Phosphate - IOWATER mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Discharge cfs Gage Height ft Precipitation - USGS Gauge in Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L Ammonia (Field)

10/27/15 09:40 Michelle Elliot 8.75 <31 9.2 48.6 60+ 4.93 6.75 0.04 0.0 10.0 0.0 5.2 327 31 2.3 2.8 16.0 32.0 0.0
09/29/15 13:50 Michelle Elliot 8.23 <31 18.7 65.7 60+ 7.8 5.35 0.06 0.0 10.0 4.9 327 36 2.33 4.5 15.5 25.2 0.0
08/25/15 11:10 Corey Meyer 8.1 <31 17.4 63.3 60+ 5.7 0.06 0.0 2.0 0.0 5.7 185 4 15.0 21.0 0.0
07/28/15 09:10 Ruth Sutton 8.3 <29 21.8 71.2 60+ 13.0 8.86 0.08 0.0 5.0 0.1 5.9 1850 2.3 14.0 18.0
06/30/15 10:07 Ruth Sutton 8.1 <29 18.2 64.8 30 36.5 4.63 0.15 0.0 10.0 0.4 13.2 4352 39.5 17.8 16.7
11/05/14 09:50 Michelle Elliot 7.75 <30 6.4 43.5 60+ 9 0.04 8.4 290 58 2.6 0.0 0.5
10/01/14 08:40 Michelle Elliot 7.7 <30 12.7 54.9 60+ 7 0.04 7.7 820 47 2.46 0.01 0.4
09/03/14 09:55 Michelle Elliot 7.53 <29 18.9 66.0 60+ 6 0.1 5.3 930 136 3.05 0.0 0.7
08/06/14 10:20 Corey Meyer 7.4 <29 18.8 65.8 60+ 6 0.05 7.4 8200 82 2.73 0.0 0.4
07/09/14 12:35 Michelle Elliot & KN 8.04 <29 18.9 66.0 60+ 7 0.11 12.0 560 307 3.83 0.0 0.4 0.1
06/04/14 10:25 Michelle Elliot 7.54 <30 18.3 64.9 60+ 5 0.11 8.9 590 185 3.29 0.0 0.4 0.1
05/07/14 10:05 Michelle Elliot 7.5 <30 11.7 53.1 45 7 0.06 12.0 41 317 0.0 0.5 0.1
04/02/14 11:15 Corey Meyer 8.0 <29 4.4 39.9 21 9 0.34 4.2 20 360 0.0 1.2
11/06/13 10:46 Corey Meyer 7.9 <30 6.6 43.9 31 8.3 0.18 7.9 24000+ 0.2 85 2.7 0.0
10/16/13 09:25 Corey Meyer 8.5 <30 10.5 50.9 60+ 9.8 0.06 8.4 530 <0.05 81 2.67 0.0
09/04/13 10:01 Corey Meyer 8.2 <30 16.9 62.4 60+ 7.7 0.06 7.3 430 <0.05 49 2.42 0.0
08/07/13 10:19 Corey Meyer 8.0 <30 20.2 68.4 34 6.2 0.09 7.7 3100 <0.05 161 3.12 0.0
07/10/13 09:52 Corey Meyer 7.8 <30 20.7 69.3 46 7.3 0.07 10.0 3400 <0.05 250
06/05/13 10:54 Corey Meyer 8.0 <30 13.1 55.6 11 8.1 0.28 13.0 12000 0.09 983 6.1 0.0
05/01/13 10:30 Corey Meyer <30 15.7 60.3 60+ 8 0.06 13.0 52 <0.05 195 3.42 0.0
04/10/13 10:30 Corey Meyer 8.3 <30 3.5 38.3 3 6 0.98 4.8 3300 0.39 1070 6.34 0.0
11/07/12 10:15 8.7 <33 7.2 45.0 60+ 10 0.02 3.6 86 <0.05 22 2.35 0.0
10/03/12 09:39 8.5 <33 12.8 55.0 60+ 9 0.04 3.3 230 <0.05 12 2.23 0.0
09/05/12 09:15 8.4 39 20.2 68.4 58 8 0.05 2.3 2800 <0.05 27 2.35 0.0
08/01/12 09:46 8.5 <33 23.6 74.5 56 10 0.05 3.4 250 <0.05 25
07/02/12 09:40 8.5 <33 27.3 81.1 60+ 11 0.07 4.2 390 <0.05 41
06/06/12 09:35 8.4 <33 19.8 67.6 60+ 9 0.05 8.6 200 <0.05 76
05/02/12 09:45 8.3 <33 16.2 61.2 19 9 0.22 11.0 8700 <0.05 278
04/04/12 09:35 8.4 <33 11.8 53.2 60+ 9 <0.02 4.7 120 <0.05 53
11/02/11 09:30 8.4 <33 9.3 48.7 60 9 0.04 5.1 230 <0.05 34
10/05/11 09:12 8.5 <33 14.2 57.6 60+ 9 0.04 5.2 280 <0.05 34
09/07/11 09:14 8.0 <33 14.1 57.4 60+ 9 0.04 5.4 640 <0.05 41
08/03/11 09:26 8.0 <33 23.2 73.8 55 8 0.06 6.1 700 <0.05 73
07/06/11 19:50 0.08 8.0 330 <0.05 102
06/01/11 09:05 8.0 <33 17.0 62.6 47 9 0.07 11.0 460 0.1 252
05/04/11 09:15 8.1 <33 8.2 46.8 55 7 0.06 10.0 98 <0.05 309
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Yearly Averages for Turkey River @ Main St./W14 (Spillville) (with comparison to all sites in the watershed)

pH

Chloride mg/L Celsius C Fahrenheit F Transparency cm Turbidity ntu DO mg/L P mg/L Nitrite - IOWATER mg/L Nitrate - IOWATER mg/L Phosphate - IOWATER mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Discharge cfs Gage Height ft Precipitation - USGS Gauge in Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L Ammonia (Field)

All Years 8.1 (8.3) <33 (<33) 15.1 (15.6) 59.1 (60.1) 57 (53) 15.6 (22.1) 7.8 (8.6) 0.11 (0.19) 0.0 (0.0) 7.4 (4.7) 0.13 (0.32) 7.4 (6.5) 589 (376) 0.07 (0.09) 176 (648) 3.1 (5.4) 0.000555555555555556 (0.000555555555555556) 11 (20) 0.5625 (0.622) 15.66 (22.17) 22.58 (23.58) 0.05 (0.08)
2015 Mean 8.3 (8.3) <33 (<33) 17.1 (17.3) 62.7 (63.1) 60+ (53) 15.6 (22.1) 6.3 (7.2) 0.08 (0.23) 0.0 (0.01) 7.4 (6.8) 0.13 (0.47) 7.0 (6.1) 693 (442) 34 (396) 2.3 (4.5) 11 (20) 15.66 (22.17) 22.58 (23.58) <0.05 (0.06)
2014 Mean 7.7 (8.2) <33 (<33) 13.8 (14.6) 56.8 (58.3) 60+ (57) 7.0 (8.4) 0.11 (0.18) 8.2 (7.3) 386 (196) 187 (761) 3.0 (5.4) 0.00125 (0.00125) 0.5625 (0.622) 0.1 (0.1)
2013 Mean 8.1 (8.2) <33 (<33) 13.4 (13.6) 56.1 (56.5) 43 (46) 7.7 (8.8) 0.22 (0.27) (0.0) (2.9) (0.14) 9.0 (7.6) 1859 (960) 0.11 (0.13) 359 (965) 3.8 (6.1) 0.0 (0.0)
2012 Mean 8.5 (8.3) <33 (<33) 17.4 (17.4) 63.3 (63.3) 60+ (51) 9.4 (8.8) 0.06 (0.17) (0.0) (2.0) (0.21) 5.1 (4.8) 428 (374) <0.05 (0.07) 67 (361) 2.3 (4.6) 0.0 (0.0) (16)
2011 Mean 8.2 (8.3) <33 (<33) 14.3 (15.9) 57.8 (60.7) 60+ (58) 8.5 (9.0) 0.06 (0.1) (0.0) (2.0) (0.25) 7.3 (6.4) 330 (237) <0.05 (0.06) 121 (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 19.4% 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 72.2% 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 @ Main St./W14 (Spillville)
CodeTR-70
CountyWinneshiek
Latitude43.2081
Longitude-91.9509
UTM_X585225.0
UTM_Y4784454.0
HUC_87060004
USGS Gagewaterdata.usgs.gov/usa/nwis/uv?site_no=05411600
Sampled byWinneshiek County Soil and Water Conservation District

Sampling Location

Photos from TR-70

Nearby Sampling Locations