Coon Creek [19-COO-10]

NameCoon Creek
Code19-COO-10
CountyWinneshiek
Latitude43.3329
Longitude-91.6432
Sampled byNortheast Iowa Resource Conservation and Development

Sampling Location

Yearly Averages for Coon Creek [19-COO-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
All Years 8.0 (8.2) 13.5 (15.0) 56.3 (59.0) 60+ (58) 0.21 (0.14) 5.9 (5.7) 679 (308) 0.08 (0.07) 3.53 (18.32) 0.09 (0.14) 69 (13321)
2009 Mean 8.1 (8.2) 12.8 (13.4) 55.0 (56.1) 60+ (60+) 0.07 (0.08) 5.4 (4.3) 297 (204) <0.05 (0.05)
2008 Mean 7.8 (8.1) 13.5 (15.0) 56.3 (59.1) 58 (58) 0.12 (0.12) 6.5 (5.7) 1133 (357) 0.12 (0.09) (0.09)
2007 Mean 7.7 (8.1) 14.4 (15.4) 58.0 (59.8) 45 (53) 0.87 (0.22) 7.9 (6.2) 4208 (745) 0.2 (0.06) (0.11)
2006 Mean 8.2 (8.2) 12.7 (16.5) 54.8 (61.7) 60+ (56) 0.12 (0.14) 6.4 (5.3) 938 (388) <0.05 (<0.05) (0.12)
2005 Mean 8.1 (8.5) 13.9 (16.6) 57.1 (61.9) 60 (55) 0.08 (0.11) 4.5 (5.3) 256 (180) <0.05 (0.11) 3.53 (18.32) (0.14)
2004 Mean 0.06 (0.1) 5.2 (5.4) 250 (170) <0.05 (0.05) (0.19)
2002 Mean 0.06 (0.21) 5.1 (5.9) <0.05 (0.15) 0.08 (0.09) <10 (11159)
2001 Mean (0.14) (12.6) (0.1) (0.54) (10137)
2000 Mean 0.1 (0.41) 4.8 (4.8) 0.08 (0.12) 0.12 (0.21) 190 (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 2.3% 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 78.0% 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).

Download in CSV format

Monthly Water Sampling Data for Coon Creek [19-COO-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
10/06/09 19:45 8.49 9.0 48.2 60+ 0.1 4.8 200 <0.05
09/01/09 18:30 7.98 14.0 57.2 60+ 0.06 6.1 320 <0.05
08/04/09 18:45 8.19 15.9 60.6 60+ 0.05 5.8 200 <0.05
07/07/09 20:45 7.96 14.4 57.9 60+ 0.06 5.9 610 <0.05
06/02/09 18:30 8.14 13.7 56.7 60+ 0.06 5.0 120 <0.05
05/05/09 16:30 7.91 13.3 55.9 0.08 4.9 5500 <0.05
04/07/09 16:00 7.91 9.1 48.4 60+ 0.05 5.0 40 <0.05
10/07/08 17:00 0.06 5.1 610 <0.05
09/02/08 19:30 7.8 19.0 66.2 54 0.1 5.6 750 <0.05
08/05/08 14:00 7.5 13.4 56.1 56 0.1 6.3 1300 <0.05
07/01/08 20:15 7.77 16.2 61.2 60+ 0.1 6.8 790 <0.05
06/03/08 15:30 7.72 13.1 55.6 60+ 0.06 5.9 1800 <0.05
05/06/08 16:18 Paul Berland 8.22 13.8 56.8 60 0.11 8.2 660 0.06
04/01/08 14:40 Paul Berland 7.86 5.6 42.1 34 0.34 7.9 4300 0.58
10/16/07 15:20 7.69 14.1 57.4 52 0.12 8.3 1200 <0.05
09/05/07 12:15 7.69 13.0 55.4 60+ 0.11 8.9 950 <0.05
08/07/07 15:45 7.6 21.4 70.5 1 1.8 3.8 56000 0.1
07/02/07 15:20 7.65 14.8 58.6 60+ 0.09 8.0 880 <0.05
06/05/07 15:15 7.72 14.3 57.7 55 0.17 12.0 3600 <0.05
05/01/07 15:20 7.78 14.1 57.4 59 0.09 6.4 550 <0.05
04/03/07 14:15 7.54 9.4 48.9 2 3.7 7.9 210000 1.1
10/03/06 16:35 60+ 0.08 4.4 290 <0.05
09/05/06 16:15 8.05 15.0 59.0 60+ 0.09 5.8 330 <0.05
08/01/06 13:45 8.15 15.3 59.5 60+ 0.1 6.2 580 <0.05
07/05/06 15:20 8.11 15.4 59.7 60+ 0.07 6.2 890 <0.05
06/06/06 15:09 8.05 13.6 56.5 55 0.19 5.8 20000 <0.05
05/02/06 15:43 8.36 10.8 51.4 60+ 0.17 8.2 4300 <0.05
04/04/06 15:15 8.31 5.9 42.6 56 0.11 8.4 150 <0.05
10/04/05 16:00 8.03 16.8 62.2 60+ 0.07 4.5 450 0.06 3.62
09/06/05 14:40 8.2 15.2 59.4 58 0.11 4.4 1900 <0.05
08/02/05 13:00 7.77 20.9 69.6 2 0.1 5.5 910 <0.05 4.53
07/05/05 16:00 8.0 16.7 62.1 60+ 0.11 4.4 240 <0.05
06/07/05 14:00 8.28 5.4 41.7 60+ 0.06 4.2 640 <0.05 2.66
05/03/05 13:30 8.06 11.2 52.2 60+ <0.02 4.4 30 <0.05 3.29
04/06/05 14:23 8.06 11.2 52.2 60+ 0.06 4.2 20 <0.05
10/26/04 13:50 0.02 5.0 230 <0.05
09/28/04 15:50 0.06 5.3 300 <0.05
08/31/04 14:45 0.08 5.6 550 <0.05
07/27/04 15:15 0.09 5.9 350 <0.05
06/29/04 14:30 0.06 5.8 310 <0.05
04/27/04 16:00 0.06 3.8 60 0.06
05/02/02 17:05 0.06 5.1 <0.05 0.07 <10.0
01/30/02 14:45 0.05 5.1 <0.05 0.08 <10.0
10/11/00 15:00 0.1 4.8 <0.1 0.12 190.0
  • 04/01/2008: Slightly elevated flow

One-time Rainfall Event Samples for Coon Creek (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
03/14/07 15:00 9 0.64 5.9 1500 0.87
07/25/05 18:31 9.02 19.6 67.3 55 0.85 7.0 640000 0.21
05/25/04 16:00
05/25/04 16:00 0.22 9.1 9200 0.1
07/29/02 15:00 1.8 5.0 0.25 0.38 670000.0
06/04/02 21:00 2.2 4.8 0.35 14.0 140000.0
06/15/01 13:40 0.9 4.8 0.5 11.0 1100000.0
04/03/01 13:30 0.2 9.2 <0.1 0.09 150.0
07/05/00 15:25 0.2 5.5 <0.1 0.22 7200.0
05/18/00 19:15 0.2 3.6 0.2 0.27 32000.0
02/24/00 17:30 1.6 4.8 0.7 <0.05 5300.0

Nearby Sampling Locations

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