Monthly Water Sampling Results for Trout River Download in CSV format

Sample Date by pH

Celsius C Fahrenheit F Transparency cm P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Flow cfs Atrazine - Screen ppb Membrane Fecal Coliform /100mL Chloride (Lab) mg/L Sulfate mg/L Total Suspended Solids mg/L
10/10/17 09:53 Josh Dansdill 11.1 52.0 54
09/12/17 13:45 Josh Dansdill 7.72 19.4 66.9 60+
08/08/17 11:27 Josh Dansdill 8.15 17.9 64.2 60+
07/11/17 06:40 Paul Berland 8.28 15.7 60.3 60+
06/13/17 11:00 Josh Dansdill 7.92 18.4 65.1 60+
05/09/17 13:31 Josh Dansdill 8.4 11.9 53.4 60+
04/11/17 07:15 Paul Berland 7.3 45.1 60+
10/11/16 11:30 Josh Dansdill 8.13 14.0 57.2 60+ 0.33 9.1 121 15.5 11.7 3.8
09/13/16 10:54 Josh Dansdill 7.75 13.9 57.0 9 0.86 10.0 2064 16.2 12.6 131
08/09/16 10:20 Josh Dansdill 7.91 16.2 61.2 60+ 0.29 7.6 309 17.0 13.2 3.8
07/12/16 10:00 Josh Dansdill 8.63 18.1 64.6 60+ 0.17 7.3 211 16.2 12.5 7
06/14/16 10:20 Josh Dansdill 8.03 16.1 61.0 42 0.35 10.6 544 18.8 12.3 14.3
05/10/16 09:35 Josh Dansdill 8.2 11.0 51.8 60+ 0.34 7.4 17.5 14.3 5.2
04/12/16 08:58 Josh Dansdill 8.45 5.4 41.7 60+ 0.25 10.3 4 16.6 12.6 5.8
10/06/15 14:00 Paul Berland 8.1 15.3 59.5 60+ 0.07 4.2 201 14.5 15.5 10.5
09/01/15 10:03 Josh Dansdill 9.1 17.5 63.5 60+ 0.08 5.1 279 15.4 15.0 5
08/04/15 14:47 Josh Dansdill 8.4 20.8 69.4 60+ 0.08 5.0 171 12.4 12.5 6.8
07/07/15 10:44 Josh Dansdill 14.5 58.1 60+ 0.08 8.2 259 13.9 10.9 0.3
06/02/15 09:39 Josh Dansdill 8.4 13.5 56.3 60+ 0.09 8.2 500
05/05/15 09:09 Josh Dansdill 8.1 11.2 52.2 60+ 0.04 7.3 52
04/07/15 14:24 Josh Dansdill 8.7 9.0 48.2 60+ 0.04 6.0 10
10/07/14 19:20 0.07 4.8 150
10/07/14 14:15 Paul Berland 8.14 13.5 56.3 60+ 0.06 4.6 74
09/02/14 11:15 Josh Dansdill 8.2 17.3 63.1 60+ 0.08 6.1 1800
08/05/14 11:34 Josh Dansdill 8.21 16.1 61.0 60+ 0.08 7.1 490
07/08/14 12:03 Josh Dansdill 8.04 16.7 62.1 4 0.85 7.6 24000+
06/03/14 10:32 Josh Dansdill 8.42 14.7 58.5 19 0.13 7.2 2600
05/06/14 10:40 Josh Dansdill 7.33 10.4 50.7 60+ 0.04 7.9 <10
04/01/14 09:34 Josh Dansdill 8.23 3.7 38.7 20 0.28 4.8 410
04/01/14 09:34 Josh Dansdill 8.23 3.7 38.7 20 0.27 4.8 470
10/01/13 11:30 Josh Dansdill 8.09 14.4 57.9 60+ 0.03 4.8 140 <0.05
09/03/13 11:00 Josh Dansdill 8.16 14.1 57.4 60+ 0.04 5.8 380 0.08
08/06/13 11:00 Josh Dansdill 8.14 16.3 61.3 53 0.09 6.7 1700 <0.05
07/09/13 00:00 Josh Dansdill 8.14 15.5 59.9 18 0.17 8.2 8200 <0.05
06/04/13 00:00 Josh Dansdill 8.08 10.8 51.4 45 0.11 9.8 360 <0.05
05/07/13 00:00 Josh Dansdill 8.03 10.3 50.5 60 0.08 8.6 86 <0.05
04/09/13 00:00 Josh Dansdill 8.13 6.0 42.8 27 0.2 3.7 240 <0.05
10/02/12 12:35 Paul Berland 8.21 13.4 56.1 60+ 0.03 1.8 300 <0.05
10/02/12 12:30 Paul Berland 8.21 13.4 56.1 60+ 0.03 1.8 330 <0.05
09/04/12 19:00 Paul Berland 8.14 23.6 74.5 60+ 0.09 1.7 860 <0.05
08/07/12 13:12 Paul Berland 7.3 17.7 63.9 60+ 0.04 2.1 150 <0.05
08/07/12 13:10 Paul Berland 7.3 17.7 63.9 60+ 0.1 2.2 140 <0.05
07/02/12 15:15 Paul Berland 8.3 22.4 72.3 60+ 0.07 2.7 320 <0.05
06/05/12 12:20 8.4 15.7 60.3 60+ 0.07 4.2 280 <0.05
05/01/12 19:40 Paul Berland 8.43 15.7 60.3 60+ 0.09 5.1 20 <0.05
05/01/12 19:30 Paul Berland 8.43 15.7 60.3 60+ 0.08 5.0 10 <0.05
04/03/12 14:35 Paul Berland 8.25 11.3 52.3 60+ 0.06 3.2 10 <0.05
04/03/12 14:30 Paul Berland 8.25 11.3 52.3 60+ 0.04 3.2 <10 <0.05
10/04/11 18:27 0.06 4.2 210 <0.05
09/06/11 18:05 Paul Berland 8.1 17.1 62.8 0.05 4.8 150 <0.05
09/06/11 18:00 Paul Berland 8.1 17.1 62.8 0.06 4.8 170 <0.05
08/02/11 18:50 Paul Berland 8.12 20.9 69.6 60+ 0.07 5.9 630 0.09
08/02/11 18:45 Paul Berland 8.12 20.9 69.6 60+ 0.05 6.1 <0.05
07/05/11 19:45 Brad Crawford 8.61 20.8 69.4 60+ 0.06 6.5 280 <0.05
07/05/11 19:35 Brad Crawford 7.95 20.1 68.2 60+ 0.07 6.6 360 <0.05
06/07/11 19:55 Brad Crawford 8.2 22.6 72.7 45 0.09 7.2 320 <0.05
05/03/11 19:50 Paul Berland 8.59 12.1 53.8 60+ 0.04 7.7 <10 <0.05
05/03/11 19:45 Paul Berland 8.59 12.1 53.8 60+ 0.04 7.7 <10 <0.05
10/05/10 19:20 0.04 5.5 170 <0.05
09/07/10 19:20 Deneb Woods 8.37 13.5 56.3 60+ 0.08 6.0 470 <0.05
08/03/10 19:20 8.76 18.5 65.3 60+ 0.07 7.3 310 <0.05
07/06/10 18:30 Deneb Woods 7.94 15.9 60.6 11 0.36 8.3 48000 <0.05
06/01/10 15:00 Aaron Schwartzhoff 8.62 13.4 56.1 60+ 0.05 6.7 210 <0.05
05/04/10 14:40 Richard Kittleson 8.27 11.2 52.2 0.1 5.4 52 0.07
04/06/10 13:00 Paul Berland & Brad Crawford 8.25 8.9 48.0 50 0.05 6.2 200 0.08
10/06/09 20:00 8.29 10.0 50.0 60+ 0.12 4.4 4600 <0.05
09/01/09 18:15 8.34 15.5 59.9 60+ 0.07 5.2 230 <0.05
08/04/09 18:30 8.336 20.2 68.4 60+ 0.05 4.9 510 <0.05
07/07/09 20:30 7.42 17.5 63.5 60+ 0.05 5.3 680 <0.05
06/02/09 18:20 8.25 15.7 60.3 60+ 0.06 4.7 290 <0.05
05/05/09 18:30 0.04 4.6 570 <0.05
04/07/09 16:30 8.09 7.5 45.5 60+ 0.12 4.5 <10 <0.05
10/07/08 16:45 0.04 4.5 430 <0.05
09/02/08 19:15 8.11 22.3 72.1 60+ 0.08 5.6 180 <0.05
08/05/08 13:30 7.86 15.6 60.1 54 0.08 7.0 2400 <0.05
07/01/08 20:00 8.24 19.7 67.5 53 0.08 7.5 790 <0.05
06/03/08 15:15 8.09 13.9 57.0 56 0.05 6.8 2900 <0.05
05/06/08 16:32 Paul Berland 8.01 14.6 58.3 26 0.1 8.2 50 <0.05
04/01/08 14:25 Paul Berland 7.95 6.5 43.7 12 0.24 7.2 1000 <0.05
10/16/07 15:35 8.04 14.3 57.7 56 0.08 7.9 580 <0.05
09/05/07 12:00 7.9 14.2 57.6 33 0.11 8.1 470 <0.05
08/07/07 15:20 7.8 19.1 66.4 2 1.2 4.5 0.07
07/02/07 15:00 8.03 16.0 60.8 56 0.08 8.6 <0.05
06/05/07 14:55 7.86 14.5 58.1 23 0.16 9.4 4200 <0.05
05/01/07 15:01 8.13 14.3 57.7 58 0.06 6.8 90 <0.05
04/03/07 14:00 7.76 9.5 49.1 8 0.29 8.5 4600 <0.05
10/03/06 17:10 60+ 0.08 3.3 520 <0.05
09/05/06 15:50 8.36 16.9 62.4 60+ 0.07 4.4 530 <0.05
08/01/06 14:10 8.1 21.2 70.2 60+ 0.07 5.3 1400 <0.05
07/05/06 14:50 8.35 14.3 57.7 60+ 0.08 6.7 720 <0.05
06/06/06 14:40 8.25 15.2 59.4 18 0.12 6.3 3900 <0.05
05/02/06 15:15 8.46 11.5 52.7 33 0.15 8.5 14000 <0.05
04/04/06 14:45 8.09 6.1 43.0 21 0.18 8.2 220 <0.05
10/04/05 17:45 8.59 21.7 71.1 60+ 0.08 4.1 550 <0.05 10.18
09/06/05 16:20 8.38 15.4 59.7 34 0.12 4.4 2300 <0.05
08/02/05 12:15 7.89 22.6 72.7 2 0.14 6.9 3500 <0.05 27.23
07/05/05 16:22 8.38 17.3 63.1 45 0.06 4.2 760 <0.05
06/07/05 13:30 7.56 4.0 39.2 60+ 0.11 3.7 3100 0.05 13.49
05/03/05 13:00 8.26 11.4 52.5 55 0.03 4.1 250 <0.05 10.12
04/06/05 14:00 8.26 11.4 52.5 55 0.08 4.3 180 <0.05
10/26/04 13:30 0.05 4.5 410 <0.05
09/28/04 15:30 0.04 4.8 500 <0.05
08/31/04 15:00 0.06 5.7 550 <0.05
07/27/04 15:00 0.08 7.7 490 <0.05
06/29/04 14:15 0.04 8.0 380 <0.05
04/27/04 13:30 0.06 3.2 380 0.36
05/02/02 17:30 0.06 6.4 <0.05 0.05 <10.0
01/30/02 14:25 <0.05 5.7 <0.05 <0.05 36.0
10/11/00 14:30 0.3 5.0 <0.1 <0.05 830.0
  • 10/10/2017: Baseflow, mucky. 46 degrees. Sunny, rain on Friday/Saturday
  • 09/12/2017: Low, clear. Haven't had rain in a long time.
  • 08/08/2017: Low, clear.
  • 06/13/2017: Low, clear. Rain last night
  • 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: Cloudy, 37 degree air temperature
  • 10/11/2016: Base flow, Clear
  • 09/13/2016: high, muddy
  • 08/09/2016: low, clear
  • 07/12/2016: Base flow, Clear
  • 06/14/2016: Murky
  • 05/10/2016: Base flow, Clear, rain last few days on and off
  • 04/12/2016: low, clear, sunny day
  • 09/01/2015: Low & clear
  • 08/04/2015: Low & clear
  • 07/07/2015: Low & clear
  • 06/02/2015: Low & clear
  • 05/05/2015: raining, clear flow
  • 04/07/2015: Low & clear
  • 09/02/2014: Clear with low flow
  • 08/05/2014: Clear and low
  • 07/08/2014: Very muddy, avg/high flow, Rain last night (1/4in ?)
  • 06/03/2014: High water, very murky, water from UIR mixing with Trout River
  • 05/06/2014: Clear and low
  • 04/01/2014: Lots of debris, very murky, high flow
  • 04/01/2014: Lots of debris, very murky, high flow
  • 10/01/2013: Sunny, Clear skies, 70's, clear and low
  • 09/03/2013: Running low
  • 08/06/2013: Sunny day, Water is murky, rained yesterday
  • 06/04/2013: Rain stopped
  • 05/07/2013: Great sunny day
  • 04/09/2013: Rain overnight, morning rain - residual snowmelt
  • 07/05/2011: Light drizzle, 79 degrees
  • 07/05/2011: Light drizzle, 79 degrees
  • 06/01/2010: Normal Flow, cattle in stream
  • 05/04/2010: Clear
  • 04/06/2010: Rained night before
  • 05/06/2008: Slightly Elevated
  • 04/01/2008: Elevated flow, muddy

Yearly Averages for Trout River (with comparison to all sites in the watershed) Download in CSV format

pH

Celsius C Fahrenheit F Transparency cm P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Flow cfs Atrazine - Screen ppb Membrane Fecal Coliform /100mL Chloride (Lab) mg/L Sulfate mg/L Total Suspended Solids mg/L
All Years 8.2 (8.2) 14.6 (15.1) 58.3 (59.2) 57 (60) 0.13 (0.15) 6.1 (5.7) 383 (299) <0.05 (0.07) 15.26 (18.32) <0.05 (0.14) 62 (74) 15.82 (15.85) 13.01 (14.37) 18 (11)
2017 Mean 8.1 (8.1) 14.5 (14.7) 58.1 (58.4) 60+ (59)
2016 Mean 8.2 (8.2) 13.5 (15.1) 56.4 (59.2) 59 (60+) 0.37 (0.37) 8.9 (7.3) 181 (236) 16.83 (16.26) 12.74 (14.3) 24 (14)
2015 Mean 8.5 (8.4) 14.5 (15.1) 58.2 (59.1) 60+ (60+) 0.07 (0.09) 6.3 (5.8) 131 (197) 14.05 (15.12) 13.48 (14.49) 6 (5)
2014 Mean 8.1 (8.2) 13.2 (13.9) 55.8 (57.0) 47 (48) 0.22 (0.16) 6.5 (6.2) 565 (479)
2013 Mean 8.1 (8.2) 12.5 (13.9) 54.5 (57.0) 50 (49) 0.1 (0.14) 6.8 (6.3) 476 (437) <0.05 (0.08)
2012 Mean 8.1 (8.3) 17.1 (16.3) 62.8 (61.4) 60+ (60+) 0.07 (0.09) 3.0 (3.7) 116 (230) <0.05 (0.06)
2011 Mean 8.2 (8.4) 18.6 (16.9) 65.4 (62.5) 60+ (60+) 0.06 (0.08) 6.1 (5.5) 127 (214) <0.05 (<0.05)
2010 Mean 8.4 (8.0) 13.6 (13.9) 56.4 (57.0) 55 (60+) 0.11 (0.1) 6.5 (6.1) 427 (436) 0.05 (<0.05)
2009 Mean 8.1 (8.2) 14.4 (13.4) 57.9 (56.1) 60+ (60+) 0.07 (0.08) 4.8 (4.3) 336 (204) <0.05 (0.05)
2008 Mean 8.0 (8.1) 15.4 (15.0) 59.8 (59.1) 46 (58) 0.1 (0.12) 6.7 (5.7) 577 (357) <0.05 (0.09) (0.09)
2007 Mean 7.9 (8.1) 14.6 (15.4) 58.2 (59.8) 34 (53) 0.28 (0.22) 7.7 (6.2) 861 (745) <0.05 (0.06) (0.11)
2006 Mean 8.3 (8.2) 14.2 (16.5) 57.6 (61.7) 51 (56) 0.11 (0.14) 6.1 (5.3) 1188 (388) <0.05 (<0.05) (0.12)
2005 Mean 8.2 (8.5) 14.8 (16.6) 58.7 (61.9) 48 (55) 0.09 (0.11) 4.5 (5.3) 898 (180) <0.05 (0.11) 15.26 (18.32) (0.14)
2004 Mean 0.06 (0.1) 5.7 (5.4) 447 (170) 0.09 (0.05) (0.19)
2002 Mean 0.05 (0.21) 6.1 (5.9) <0.05 (0.15) <0.05 (0.09) 17 (32)
2001 Mean (0.14) (12.6) (0.1) (0.54) (934)
2000 Mean 0.3 (0.41) 5.0 (4.8) 0.08 (0.12) <0.05 (0.21) 830 (157)

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).

Water Quality Standards

For 2.2% 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 67.1% 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 Trout River (Not part of above statistics)

Sample Date by pH

Celsius C Fahrenheit F Transparency cm P mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Flow cfs Atrazine - Screen ppb Membrane Fecal Coliform /100mL Chloride (Lab) mg/L Sulfate mg/L Total Suspended Solids mg/L
03/14/07 14:40 3 0.71 4.3 1200 0.58
07/25/05 18:17 8.68 21.2 70.2 60+ 1.4 3.4 160000 0.15
05/25/04 15:40
05/25/04 15:40 0.24 10.0 4500 <0.05
07/29/02 14:35 2.6 2.1 0.26 0.38 320000.0
06/04/02 20:40 0.53 6.4 0.06 19.0 6600.0
06/15/01 13:20 0.1 7.4 <0.1 0.41 6300.0
04/03/01 14:00 0.4 10.0 0.1 0.06 250.0
08/17/00 16:00 0.5 5.8 <0.1 0.1 39000.0
07/05/00 15:00 <0.1 8.1 <0.1 0.16 1300.0
05/18/00 19:00 <0.1 3.2 0.2 0.1 2700.0
02/24/00 17:00 0.6 3.7 0.6 0.08 2000.0

Site Information

NameTrout River
Code18-TRI-10
CountyWinneshiek
Latitude43.3176
Longitude-91.6705
UTM_X607810.0
UTM_Y4796944.0
Sampled byNortheast Iowa Resource Conservation and Development

Sampling Location

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