Ten Mile [12-TEN-10]

NameTen Mile
Code12-TEN-10
CountyWinneshiek
Latitude43.333
Longitude-91.8526
Sampled byIowa DNR Fisheries ~ Decorah Hatchery

Sampling Location

Yearly Averages for Ten Mile [12-TEN-10] Download in CSV format
(with comparison to all locations in the watershed)

pH

Celsius C Fahrenheit F Transparency cm P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Flow cfs Atrazine ppb Fecal Coliform /100mL Chloride mg/L Sulfate mg/L Total Suspended Solids mg/L
All Years 8.2 (8.2) 15.5 (15.0) 59.9 (58.9) 60+ (59) 0.15 (0.16) 6.1 (5.7) 202 (303) <0.05 (0.07) 9.22 (18.32) 0.22 (0.14) 73 (13321) 15.31 (15.67) 15.77 (14.42) 9 (12)
2018 Mean 8.2 (8.3) 10.9 (9.5) 51.6 (49.0) 57 (46)
2017 Mean 8.1 (8.1) 16.9 (14.7) 62.4 (58.4) 60+ (59) 0.39 (0.37) 6.2 (5.7) 434 (359) 14.26 (15.39) 15.56 (14.51) 13 (15)
2016 Mean 8.2 (8.2) 15.8 (15.1) 60.4 (59.2) 60+ (60+) 0.35 (0.37) 10.5 (7.3) 129 (236) 17.51 (16.26) 16.29 (14.3) 9 (14)
2015 Mean 8.4 (8.4) 15.3 (15.1) 59.5 (59.1) 60+ (60+) 0.09 (0.09) 5.9 (5.8) 245 (197) 13.3 (15.12) 15.23 (14.49) 3 (5)
2014 Mean 8.3 (8.2) 14.9 (13.9) 58.8 (57.0) 58 (48) 0.16 (0.16) 6.5 (6.2) 506 (479)
2013 Mean 8.6 (8.2) 14.4 (13.9) 58.0 (57.0) 60+ (49) 0.11 (0.14) 7.8 (6.3) 299 (437) <0.05 (0.08)
2012 Mean 8.2 (8.3) 18.8 (16.3) 65.8 (61.4) 60+ (60+) 0.08 (0.09) 3.1 (3.7) 110 (230) 0.06 (0.06)
2011 Mean 8.6 (8.4) 16.1 (16.9) 61.0 (62.5) 60+ (60+) 0.09 (0.08) 6.5 (5.5) 162 (214) <0.05 (<0.05)
2010 Mean 8.0 (8.0) 13.6 (13.9) 56.5 (57.0) 60+ (60+) 0.09 (0.1) 6.6 (6.1) 239 (436) <0.05 (<0.05)
2009 Mean 7.8 (8.2) 12.0 (13.4) 53.6 (56.1) 60+ (60+) 0.08 (0.08) 3.7 (4.3) 67 (204) <0.05 (0.05)
2008 Mean 8.1 (8.1) 15.8 (15.0) 60.5 (59.1) 60+ (58) 0.13 (0.12) 5.5 (5.7) 133 (357) 0.08 (0.09) 0.1 (0.09)
2007 Mean 8.2 (8.1) 14.7 (15.4) 58.4 (59.8) 58 (53) 0.14 (0.22) 6.9 (6.2) 905 (745) <0.05 (0.06) 0.22 (0.11)
2006 Mean 8.2 (8.2) 17.3 (16.5) 63.1 (61.7) 58 (56) 0.14 (0.14) 6.6 (5.3) 231 (388) <0.05 (<0.05) 0.17 (0.12)
2005 Mean 8.6 (8.5) 17.6 (16.6) 63.6 (61.9) 58 (55) 0.11 (0.11) 5.4 (5.3) 191 (180) <0.05 (0.11) 9.22 (18.32) 0.34 (0.14)
2004 Mean 0.09 (0.1) 5.8 (5.4) 47 (170) <0.05 (0.05) 0.29 (0.19)
2002 Mean 0.08 (0.21) 3.7 (5.9) <0.05 (0.15) 0.15 (0.09) 60 (11159)
2001 Mean (0.14) (12.6) (0.1) (0.54) (10137)
2000 Mean 0.2 (0.41) 4.0 (4.8) 0.08 (0.12) 0.2 (0.21) 100 (18412)

*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).

Water Quality Standards

For 7.1% 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 48.4% 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).

Download in CSV format

Monthly Water Sampling Data for Ten Mile [12-TEN-10]

Sample Date Time by pH

Celsius C Fahrenheit F Transparency cm P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Flow cfs Atrazine ppb Fecal Coliform /100mL Chloride mg/L Sulfate mg/L Total Suspended Solids mg/L
05/08/18 12:25 Steve Pecinovsky 8.12 13.9 57.0 41
04/17/18 13:40 T. Shay, S. Pecinovsky 8.33 7.9 46.2 60+
10/10/17 13:30 Theresa Shay 7.98 12.2 54.0 60 0.57 4.3 2481 17.0 20.9 7.8
09/12/17 13:30 Theresa Shay 8.02 19.0 66.2 60+ 0.36 3.6 134 14.5 17.1 4
08/08/17 13:35 Theresa Shay 8.27 20.4 68.7 60+ 0.31 5.5 52 15.4 15.9 2.4
07/11/17 14:00 Theresa Shay, Sam Boyd 8.04 21.2 70.2 30 0.52 8.6 2382 13.6 14.4 16
06/13/17 13:30 Theresa Shay 8.17 22.0 71.6 50 0.36 5.6 4106 12.3 12.9 11.6
05/09/17 13:50 Theresa Shay 8.02 13.9 57.0 60+ 0.28 8.4 199 13.5 13.7 5.2
04/11/17 14:10 Josh Dansdill 8.31 9.5 49.1 60+ 0.31 7.4 86 13.5 14.0 45.6
10/11/16 13:38 Theresa Shay 8.32 16.1 61.0 60+ 0.33 7.4 31 13.0 13.8 0.8
09/13/16 13:50 Theresa Shay 8.08 16.7 62.0 39 0.51 8.6 1658 13.4 13.3 21
08/09/16 08:00 Theresa Shay 7.81 16.7 62.0 60+ 0.38 11.3 644 15.9 15.2 12
07/12/16 07:30 Theresa Shay 8.33 18.3 65.0 60+ 0.26 9.9 496 18.2 17.0 10.5
06/14/16 12:37 Siepker & Pribyl 8.0 20.0 68.0 60+ 0.38 14.1 556 23.9 17.8 10.3
05/10/16 14:08 Theresa Shay 8.42 12.8 55.0 60+ 0.31 9.6 20 20.0 19.8 3
04/12/16 13:16 Josh Dansdill 8.7 9.9 49.8 60+ 0.28 12.7 <4 18.2 17.1 4
10/06/15 13:45 Theresa Shay 8.18 15.5 59.9 60+ 0.1 2.9 262 13.8 16.2 1.7
09/01/15 07:41 Theresa Shay & Mike Siepker 8.11 16.6 61.9 60+ 0.11 3.9 269 14.7 17.7 4.8
08/04/15 13:45 Theresa Shay 8.41 19.4 66.9 60+ 0.1 4.1 538 12.3 14.6 3.8
07/07/15 14:30 Theresa Shay 8.52 18.3 64.9 42 0.12 7.2 10462 12.4 12.4 1.5
06/02/15 14:10 Theresa Shay 17.2 63.0 60+ 0.09 9.3 330
05/05/15 14:00 Theresa Shay 12.12 53.8 60+ 0.05 7.1 41
04/07/15 13:52 Josh Dansdill 8.9 7.9 46.2 60+ 0.06 6.7 10
10/07/14 13:41 Michael Hoeper 13.8 56.8 60+ 0.19 5.4 290
09/02/14 15:35 Michael Hoeper 8.31 19.7 67.5 60+ 0.23 5.0 6900
08/05/14 13:35 Theresa Shay 8.33 17.1 62.8 60+ 0.11 6.2 570
07/08/14 14:07 Zach Benttine 8.31 21.1 70.0 29 0.16 7.0 3400
06/03/14 13:47 Theresa Shay 8.37 18.3 64.9 60+ 0.07 7.4 730
05/06/14 12:45 Bill Kalishek 8.5 11.11 52.0 60+ 0.06 10.0 10
04/01/14 14:13 Theresa Shay 8.13 3.3 37.9 17 0.32 4.2 300
10/01/13 13:00 Bill Kalishek 9.3 16.6 61.9 60+ 0.07 3.8 10 <0.05
09/03/13 12:40 Theresa Shay 8.73 16.1 61.0 60+ 0.08 5.2 51 <0.05
08/06/13 13:08 Tyler Willey 8.64 19.4 66.9 30 0.16 6.1 24000+ <0.05
07/09/13 00:00 Theresa Shay 20.6 69.1 58 0.1 8.7 1100 <0.05
06/04/13 13:20 Theresa Shay 8.76 9.4 48.9 53 0.11 12.0 460 <0.05
05/07/13 13:30 Theresa Shay 8.35 12.2 54.0 60+ 0.11 15.0 63 <0.05
04/09/13 00:00 Bill Kalishek 7.73 6.6 43.9 60+ 0.13 4.1 460 <0.05
10/02/12 18:06 Theresa Shay 8.02 15.0 59.0 60+ 0.05 0.8 63 <0.05
09/04/12 19:00 22.2 72.0 60+ 0.06 0.86 150 <0.05
08/07/12 18:10 Adam Grim 8.44 22.8 73.0 60+ 0.06 1.2 63 <0.05
07/02/12 18:42 0.1 2.5 250 <0.05
06/05/12 18:10 JJ Moser 19.2 66.6 60+ 0.07 5.2 73 0.18
05/01/12 18:40 0.11 7.8 1800 <0.05
04/03/12 18:40 Theresa Shay 14.8 58.6 60+ 0.1 3.1 10 <0.05
10/04/11 18:00 0.1 2.8 20 <0.05
08/02/11 17:42 60+ 0.08 5.4 800 <0.05
07/05/11 16:50 18.9 66.0 60+ 0.09 6.7 290 <0.05
06/07/11 17:38 21.7 71.0 60+ 0.1 8.7 280 <0.05
05/03/11 12:25 8.6 7.8 46.0 60+ 0.08 9.0 86 <0.05
10/05/10 19:00 Theresa Shay 11.1 52.0 60+ 0.07 7.8 85 <0.05
09/07/10 18:03 JJ Moser 12.2 54.0 60+ 0.09 5.9 440 <0.05
08/03/10 18:10 JJ Moser 8.65 19.4 67.0 60+ 0.11 7.4 300 <0.05
07/06/10 13:25 5.9 48 0.14 8.2 16000 <0.05
06/01/10 17:50 Bill Kalishek 8.4 18.3 65.0 60+ 0.09 6.2 97 <0.05
05/04/10 18:23 JJ Moser 8.56 12.8 55.0 60+ 0.07 5.0 41 <0.05
04/06/10 18:07 Theresa Shay & JJ Moser 8.25 7.8 46.0 60+ 0.07 5.5 63 <0.05
10/06/09 17:50 5.14 10.0 50.0 60+ 0.12 3.0 170 <0.05
09/01/09 18:15 0.1 2.5 120 <0.05
08/04/09 18:50 8.42 17.7 63.9 60+ 0.07 2.3 41 <0.05
07/07/09 17:55 8.4 16.0 60.8 60+ 0.09 3.9 85 <0.05
06/02/09 13:00 8.0 11.1 52.0 60+ 0.04 5.8 120 <0.05
05/05/09 16:50 8.39 11.0 51.8 60+ 0.08 4.4 85 <0.05
04/07/09 18:35 Aaron Schwartzhoff 8.52 6.0 42.8 60+ 0.08 3.7 <10 0.09
10/07/08 18:10 0.07 2.9 90 <0.05 0.07
09/02/08 17:30 8.38 20.0 68.0 60+ 0.1 3.5 40 <0.05 0.09
08/05/08 18:55 8.46 20.0 68.0 60+ 0.1 5.1 20 <0.05 0.1
07/01/08 18:30 6.6 19.4 67.0 60+ 0.09 7.5 830 <0.05 0.23
06/03/08 17:45 8.7 14.4 57.9 60+ 0.06 6.0 410 <0.05 0.09
05/06/08 18:35 Aaron Schwartzhoff 8.55 15.6 60.1 60+ 0.07 6.9 20 0.07 0.05
04/01/08 17:30 Pecinovsky 8.14 5.6 42.1 10 0.42 6.7 1500 0.31 <0.05
10/16/07 17:35 8.44 13.0 55.4 60+ 0.14 7.5 1200 <0.05 0.06
09/04/07 14:05 8.32 16.0 60.8 59 0.11 6.3 520 <0.05 <0.05
08/07/07 17:53 8.31 19.0 66.2 60+ 0.1 3.2 200 <0.05 0.12
07/02/07 17:59 8.37 18.9 66.0 60+ 0.09 6.1 220 <0.05 0.1
06/05/07 13:55 8.3 14.4 57.9 43 0.16 9.0 2100 <0.05 1.1
05/01/07 17:40 8.3 15.5 59.9 60+ 0.07 6.7 <0.05 <0.05
04/03/07 13:37 7.57 6.0 42.8 13 0.32 9.3 9500 <0.05 <0.14
10/03/06 12:25 8.1 15.0 59.0 60+ 0.1 2.4 120 <0.05 0.17
09/05/06 18:15 8.67 20.2 68.4 60+ 0.09 2.7 91 <0.05 0.08
08/01/06 18:18 8.2 23.7 74.7 60+ 0.11 3.3 210 <0.05 0.08
07/05/06 13:40 8.14 16.9 62.4 60+ 0.1 6.3 380 <0.05 0.17
06/06/06 18:10 8.14 20.5 68.9 45 0.17 6.5 350 <0.05 0.24
05/02/06 20:00 8.3 15.0 59.0 46 0.2 13.0 2300 0.08 0.38
04/04/06 19:50 8.0 9.7 49.5 29 0.18 12.0 50 <0.05 0.077
10/04/05 18:30 8.57 21.8 71.2 55 0.11 6.8 200 <0.05 9.84 0.14
09/06/05 17:35 8.55 19.4 66.9 55 0.11 3.1 350 <0.05 0.27
08/02/05 13:40 8.7 23.3 73.9 5 0.12 6.5 3300 <0.05 11.71 0.18
07/05/05 14:00 9.05 23.0 73.4 60+ 0.11 5.2 250 <0.05 0.31
06/07/05 14:45 9.0 9.8 49.6 60+ 0.12 5.5 2000 0.08 3.38 1.3
05/03/05 17:20 8.22 12.8 55.0 60+ 0.08 4.8 <10 <0.05 11.95 0.13
04/06/05 14:40 8.22 12.8 55.0 60+ 0.09 6.2 10 <0.05 0.07
10/26/04 17:20 0.1 4.1 36 <0.05 0.12
09/30/04 18:35 10
09/28/04 17:45 0.1 4.4 <0.05 0.16
08/31/04 19:45 0.09 6.0 <0.05 0.37
07/27/04 13:50 0.1 7.9 380 <0.05 0.38
06/29/04 14:30 0.06 9.1 220 <0.05 0.63
04/27/04 17:25 0.07 3.1 <10 0.05 0.1
05/02/02 16:19 0.06 3.7 <0.05 0.2 10.0
01/30/02 15:10 0.09 3.6 <0.05 0.09 110.0
10/11/00 17:35 0.2 4.0 <0.1 0.2 100.0
  • 05/08/2018: good flow
  • 04/17/2018: off color
  • 10/10/2017: Flows up - started raining.
  • 09/12/2017: Low flow.
  • 08/08/2017: Lots of fish under bridge
  • 07/11/2017: Flows up, water turbid.
  • 05/09/2017: overcast, temps mid 50s. T-storms overnight over UIR, dropping variable amounts of rain (0.10 - 1.33 inches in Dorchester)
  • 04/11/2017: Clear, good baseflow
  • 09/13/2016: flows up
  • 08/09/2016: mostly sunny, humid, morning temp: 63 degrees
  • 07/12/2016: overcast, rain early AM
  • 05/10/2016: green tint to water
  • 04/12/2016: Base flow, Clear
  • 09/02/2014: Heavy dump truck traffic
  • 08/05/2014: water flow good, clear
  • 07/08/2014: Low-Medium flow, slightly turbid
  • 06/03/2014: Awesome!
  • 05/06/2014: Clear and normal water levels
  • 04/01/2014: Up and Muddy
  • 10/01/2013: Low and Clear
  • 06/04/2013: Flows up
  • 05/07/2013: higher flows new channel being cut above bridge
  • 10/02/2012: water backed up by beaver dam below bridge
  • 09/04/2012: Low & Clear; pH Out of Calibration
  • 06/05/2012: pH Not Calibrated
  • 04/03/2012: Low & Clear; pH Out of Calibration
  • 05/03/2011: Slightly high flow
  • 06/01/2010: Normal water level
  • 05/04/2010: Sunny 78 degrees, Breezy
  • 04/07/2009: a little low & very clear
  • 05/06/2008: Moderate to High Flow, Clear
  • 04/01/2008: High, Muddy

One-time Rainfall Event Samples for Ten Mile (Not part of above statistics)

Sample Date Time by pH

Celsius C Fahrenheit F Transparency cm P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Flow cfs Atrazine ppb Fecal Coliform /100mL Chloride mg/L Sulfate mg/L Total Suspended Solids mg/L
03/14/07 13:15 7.62 0.0 32.0 11 0.64 3.0 2600 1.2 0.06
07/25/05 15:10 8.62 22.0 71.6 60+ 0.19 4.6 7500 0.06 0.34
05/25/04 14:30
05/25/04 14:30 0.34 14.0 6400 0.14 2.4
07/29/02 15:30 1.3 3.0 0.26 1.0 120000.0
06/04/02 13:50 0.47 4.1 <0.05 1.1 1000.0
06/15/01 17:20 0.5 8.3 0.3 5.0 110000.0
04/03/01 16:21 0.5 6.5 0.1 0.15 160.0
08/17/00 15:20 0.2 4.7 <0.1 0.26 700.0
07/05/00 17:40 0.1 7.2 0.1 0.52 430.0
05/18/00 20:30 0.1 3.0 0.2 1.1 2700.0
02/24/00 13:50 1.5 3.0 1.1 0.76 4500.0

Nearby Sampling Locations

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