Monthly Water Sampling Results for Beaver Creek, IA 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 09:45 Theresa Shay 7.6 11.7 53.1 34
09/12/17 10:50 Theresa Shay 7.95 18.4 65.1 44
08/08/17 10:50 Theresa Shay 7.86 19.2 66.6 60+
07/11/17 10:25 Theresa Shay, Sam Boyd 7.56 19.5 67.1 24
06/13/17 10:30 Theresa Shay 7.66 22.0 71.6 46
05/09/17 10:55 Theresa Shay 7.46 12.8 55.0 57
04/11/17 10:56 Josh Dansdill 8.23 7.2 45.0 60+
10/11/16 11:00 Theresa Shay 7.96 14.4 58.0 60+ 0.16 8.5 565 12.8 16.7 1
09/13/16 11:05 Theresa Shay 7.83 17.2 63.0 59 0.21 11.3 959 13.0 14.0 10.3
08/09/16 10:57 Theresa Shay 8.05 20.6 69.0 60+ 0.17 14.0 2613 16.5 16.2 4
07/12/16 09:35 Theresa Shay 8.05 22.2 72.0 60+ 0.16 9.7 2247 16.6 19.1 9.5
06/14/16 10:30 Siepker & Pribyl 7.88 20.0 68.0 24 0.23 20.6 1850 22.2 13.6 48
05/10/16 11:00 Theresa Shay 8.12 11.7 53.0 60+ 0.12 16.4 1515 23.6 17.9 4
04/12/16 10:48 Josh Dansdill 8.62 7.0 44.6 60+ 0.14 16.9 34 19.8 17.6 3.2
10/06/15 11:05 Theresa Shay 7.85 13.8 56.8 60+ 0.05 5.6 213 17.0 22.7 7.5
09/01/15 10:52 Theresa Shay & Mike Siepker 8.14 22.7 72.9 60+ 0.06 9.3 1291 16.2 21.3 3.3
08/04/15 11:15 Theresa Shay 8.16 20.0 68.0 60+ 0.06 9.1 496 13.6 17.3 7.5
07/07/15 11:07 Theresa Shay 8.25 17.7 63.9 60+ 0.05 10.0 738 12.3 14.3 1.8
06/02/15 11:40 Theresa Shay 16.6 61.9 60+ 0.04 16.0 960
05/05/15 11:18 Theresa Shay 13.3 55.9 60+ 0.05 11.0 1200
04/07/15 10:18 Josh Dansdill 8.6 6.6 43.9 60+ 0.04 13.0 41
10/07/14 10:50 Michael Hoeper 10.0 50.0 60+ 0.07 13.0 540
09/02/14 10:55 Michael Hoeper 7.88 18.0 64.4 46 0.13 10.0 4100
08/05/14 10:55 Theresa Shay 7.77 20.7 69.3 36 0.07 5.6 730
07/08/14 11:05 Zach Benttine 8.04 20.0 68.0 54 0.06 18.0 1900
06/03/14 11:15 Theresa Shay 7.7 15.0 59.0 31 0.07 21.0 4100
05/06/14 10:55 Bill Kalishek 7.9 7.7 45.9 60+ 0.03 19.0 63
04/01/14 11:40 Theresa Shay 8.07 0.0 32.0 16 0.32 3.0 110
10/01/13 10:50 Bill Kalishek 7.82 15.5 59.9 53 0.05 4.3 440 <0.05
09/03/13 10:15 Theresa Shay 7.74 15.6 60.1 42 0.06 5.2 580 <0.05
08/06/13 10:34 Tyler Willey 8.78 19.4 66.9 31 0.09 5.9 7300 0.05
07/09/13 00:00 Theresa Shay 24.4 75.9 37 0.06 14.0 5200 0.12
06/04/13 10:40 Theresa Shay 8.31 12.2 54.0 60+ 0.04 20.0 260 <0.05
05/07/13 10:55 Theresa Shay 7.94 7.7 45.9 60+ 0.05 24.0 72 <0.05
04/09/13 00:00 Bill Kalishek 7.98 5.5 41.9 33 0.22 5.2 1200 0.33
10/02/12 15:35 Theresa Shay 8.11 13.9 57.0 60 0.08 <0.1 31 <0.05
09/04/12 14:55 24.4 76.0 42 0.19 <0.1 260 <0.05
08/07/12 15:50 Adam Grim 8.36 22.8 73.0 29 0.15 1.0 750 <0.05
07/02/12 15:40 0.12 3.4 52 <0.05
06/05/12 15:15 JJ Moser 19.9 67.8 60+ 0.08 20.0 1700 <0.05
05/01/12 16:05 Theresa Shay 8.93 11.1 52.0 58 0.05 16.0 1900 <0.05
04/03/12 15:50 Theresa Shay 13.6 56.5 60+ 0.05 3.6 98 <0.05
10/04/11 15:50 0.05 2.2 190 <0.05
09/06/11 16:00 Theresa Shay 16.7 62.0 41 0.09 1.9 1300 0.06
08/02/11 15:08 7.87 29.6 85.3 60+ 0.12 3.4 480 <0.05
07/05/11 14:50 22.2 72.0 44 0.08 7.4 590 <0.05
06/07/11 14:52 21.7 71.0 60+ 0.07 12.0 2400 <0.05
05/03/11 14:25 8.4 6.7 44.0 60+ 0.02 11.0 52 <0.05
10/05/10 15:55 Theresa Shay 8.38 7.8 46.0 60+ 0.04 12.0 930 0.05
09/07/10 15:38 JJ Moser 12.2 54.0 60+ 0.05 8.5 8700 <0.05
08/03/10 15:31 JJ Moser 8.14 18.9 66.0 60+ 0.06 13.0 1000 <0.05
07/06/10 14:50 5.9 17.8 64.0 60+ 0.05 15.0 1900 <0.05
06/01/10 15:40 Bill Kalishek 7.7 20.6 69.0 60+ 0.04 8.9 490 <0.05
05/04/10 15:38 JJ Moser 7.81 10.0 50.0 36 0.04 12.0 750 <0.05
04/06/10 15:39 Theresa Shay & JJ Moser 7.93 6.1 43.0 60+ 0.03 8.3 110 <0.05
10/06/09 15:45 7.66 8.0 46.4 60+ 0.08 1.4 560 <0.05
09/01/09 16:15 0.07 2.0 130 <0.05
08/04/09 15:40 8.42 21.1 70.0 42 0.1 2.6 120 <0.05
07/07/09 15:15 7.98 19.0 66.2 60+ 0.05 7.6 620 <0.05
06/02/09 14:55 7.8 16.5 61.7 100+ 0.04 15.0 1600 <0.05
05/05/09 14:30 8.11 11.0 51.8 60+ 0.04 8.8 600 <0.05
04/07/09 14:22 Aaron Schwartzhoff 8.16 2.0 35.6 60+ 0.03 5.2 210 0.09
10/07/08 14:20 0.1 2.1 2700 <0.05 0.06
09/02/08 14:35 8.04 22.0 71.6 42 0.07 2.4 830 0.17 0.08
08/05/08 16:00 8.05 23.3 74.0 51 0.05 4.4 2300 <0.05 0.08
07/01/08 15:40 6.6 19.4 67.0 60+ 0.04 12.0 1900 <0.05 0.22
06/03/08 15:55 8.3 13.3 55.9 60+ 0.02 14.0 2700 0.1 0.19
05/06/08 15:54 Aaron Schwartzhoff 8.23 12.8 55.0 60+ 0.03 11.0 300 0.1 <0.05
04/01/08 15:24 Pecinovsky 7.63 2.2 36.0 8 0.32 9.3 290 0.72 <0.05
10/16/07 14:45 8.04 14.0 57.2 45 0.16 8.7 4800 0.1 0.07
09/04/07 15:59 8.1 18.0 64.4 60+ 0.04 7.7 4900 <0.05 0.1
08/07/07 15:28 7.73 22.0 71.6 60+ 0.21 2.6 0.09 0.27
07/02/07 15:05 7.8 21.1 70.0 52 0.07 6.6 930 0.06 0.07
06/05/07 16:25 7.97 15.6 60.1 50 0.05 18.0 600 <0.05 0.34
05/01/07 14:45 7.7 11.1 52.0 60+ 0.04 12.0 <0.05 <0.05
04/03/07 16:12 7.55 5.0 41.0 28 0.11 13.0 1200 <0.05 <0.06
10/03/06 14:30 8.2 18.0 64.4 60+ 0.07 3.5 120 <0.05 0.08
09/05/06 16:02 8.1 20.5 68.9 47 0.09 2.9 830 <0.05 0.08
08/01/06 15:36 7.45 26.7 80.1 36 0.18 1.8 650 0.08 0.09
07/05/06 15:40 7.92 20.9 69.6 40 0.07 6.7 1100 <0.05 0.12
06/06/06 15:30 7.62 20.1 68.2 32.5 0.12 7.5 4500 0.15 0.4
05/02/06 17:40 7.8 13.9 57.0 60+ 0.03 17.0 140 <0.05 0.34
04/04/06 17:40 7.4 5.8 42.4 31 0.09 15.0 60 <0.05 0.052
10/04/05 15:45 7.87 17.5 63.5 42 0.11 12.0 2900 0.1 22.82 0.08
09/06/05 14:30 8.23 23.4 74.1 34 0.06 4.4 730 <0.05 0.17
08/02/05 16:00 7.94 20.5 68.9 1 0.06 11.0 3700 <0.05 11.2 0.14
07/05/05 17:05 8.55 25.1 77.2 41.5 0.07 14.0 3500 <0.05 0.21
06/07/05 17:15 8.8 5.4 41.7 60+ 0.07 13.0 2800 0.11 6.16 0.93
05/03/05 14:30 8.5 12.1 53.8 40 <0.02 10.0 210 <0.05 9.34 0.12
04/06/05 18:00 8.5 12.1 53.8 40 0.07 12.0 170 0.05 <0.05
10/26/04 15:30 0.04 8.8 140 <0.05 0.07
09/28/04 15:00 0.06 10.0 1300 0.06 0.15
08/31/04 17:45 0.05 7.1 350 0.05 0.18
07/27/04 16:50 0.04 15.0 1500 <0.05 0.34
06/29/04 17:30 0.08 17.0 760 <0.05 0.47
04/27/04 15:35 0.05 3.9 1000 0.13 0.13
05/02/02 19:03 0.1 13.0 <0.05 0.1 50.0
01/30/02 17:00 0.08 5.3 0.09 0.07 300.0
10/11/00 14:45 0.1 4.2 <0.1 0.16 30.0
  • 10/10/2017: Flows up. Water off color due to rain on weekend.
  • 09/12/2017: Low water, brown color, air temps low 80s. Crop dusting - corn?
  • 08/08/2017: water level low, very green
  • 07/11/2017: Flows up, water turbid.
  • 06/13/2017: Hot, humid, hazy today.
  • 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, baseflow
  • 09/13/2016: flows up
  • 07/12/2016: low flows, sandbars evident upstream
  • 05/10/2016: green tint to water
  • 04/12/2016: Base flow, Clear
  • 09/01/2015: - IC in total P bottle
  • 06/02/2015: Lots of Swallows
  • 04/07/2015: Low & clear
  • 10/07/2014: PH meter died
  • 09/02/2014: Lots of traffic
  • 08/05/2014: Low flow, green tint
  • 07/08/2014: Medium flow
  • 06/03/2014: Water flows up
  • 05/06/2014: Clear and normal water levels
  • 04/01/2014: Up and Muddy
  • 10/01/2013: low, behind beaver dam
  • 09/03/2013: Water green/dirty
  • 06/04/2013: High flows but clear
  • 05/07/2013: Water green tint
  • 04/09/2013: Rain Slowing,
  • 09/04/2012: Low & Clear; Above Beaver dam; pH Out of Calibration
  • 06/05/2012: pH Not Calibrated
  • 04/03/2012: Low & Clear; pH Out of Calibration
  • 06/01/2010: Normal water level
  • 05/04/2010: Sunny 64 degrees, Breezy, No odor
  • 04/07/2009: low & clear
  • 05/06/2008: Moderate to High Flow, Clear
  • 04/01/2008: High, Muddy

Yearly Averages for Beaver Creek, IA (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 8.0 (8.2) 15.6 (15.1) 60.1 (59.2) 56 (60) 0.08 (0.15) 9.6 (5.7) 663 (299) 0.07 (0.07) 12.38 (18.32) 0.17 (0.14) 77 (74) 16.69 (15.85) 17.34 (14.37) 9 (11)
2017 Mean 7.8 (8.1) 15.8 (14.7) 60.5 (58.4) 50 (59)
2016 Mean 8.1 (8.2) 16.2 (15.1) 61.1 (59.2) 60+ (60+) 0.17 (0.37) 13.9 (7.3) 843 (236) 17.79 (16.26) 16.44 (14.3) 11 (14)
2015 Mean 8.2 (8.4) 15.8 (15.1) 60.5 (59.1) 60+ (60+) 0.05 (0.09) 10.6 (5.8) 466 (197) 14.78 (15.12) 18.9 (14.49) 5 (5)
2014 Mean 7.9 (8.2) 13.1 (13.9) 55.5 (57.0) 47 (48) 0.11 (0.16) 12.8 (6.2) 706 (479)
2013 Mean 8.1 (8.2) 14.3 (13.9) 57.8 (57.0) 49 (49) 0.08 (0.14) 11.2 (6.3) 804 (437) 0.09 (0.08)
2012 Mean 8.5 (8.3) 17.6 (16.3) 63.7 (61.4) 56 (60+) 0.1 (0.09) 6.3 (3.7) 268 (230) <0.05 (0.06)
2011 Mean 8.1 (8.4) 19.4 (16.9) 66.9 (62.5) 60+ (60+) 0.07 (0.08) 6.3 (5.5) 454 (214) <0.05 (<0.05)
2010 Mean 7.6 (8.0) 13.3 (13.9) 56.0 (57.0) 60+ (60+) 0.04 (0.1) 11.1 (6.1) 934 (436) <0.05 (<0.05)
2009 Mean 8.0 (8.2) 12.9 (13.4) 55.3 (56.1) 60+ (60+) 0.06 (0.08) 6.1 (4.3) 377 (204) <0.05 (0.05)
2008 Mean 7.8 (8.1) 15.5 (15.0) 59.9 (59.1) 53 (58) 0.09 (0.12) 7.9 (5.7) 1126 (357) 0.17 (0.09) 0.1 (0.09)
2007 Mean 7.8 (8.1) 15.3 (15.4) 59.5 (59.8) 56 (53) 0.1 (0.22) 9.8 (6.2) 1736 (745) 0.06 (0.06) 0.13 (0.11)
2006 Mean 7.8 (8.2) 18.0 (16.5) 64.4 (61.7) 47 (56) 0.09 (0.14) 7.8 (5.3) 429 (388) 0.06 (<0.05) 0.17 (0.12)
2005 Mean 8.3 (8.5) 16.6 (16.6) 61.9 (61.9) 39 (55) 0.07 (0.11) 10.9 (5.3) 1155 (180) 0.06 (0.11) 12.38 (18.32) 0.24 (0.14)
2004 Mean 0.05 (0.1) 10.3 (5.4) 646 (170) 0.06 (0.05) 0.22 (0.19)
2002 Mean 0.09 (0.21) 9.2 (5.9) 0.07 (0.15) 0.09 (0.09) 122 (32)
2001 Mean (0.14) (12.6) (0.1) (0.54) (934)
2000 Mean 0.1 (0.41) 4.2 (4.8) 0.08 (0.12) 0.16 (0.21) 30 (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 43.5% 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 75.9% 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 Beaver Creek, IA (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 16:05 7.19 0.0 32.0 23 0.38 3.0 860 0.48 <0.05
07/25/05 17:20 8.75 22.7 72.9 60+ 0.61 1.5 41000 0.12 0.14
05/25/04 16:45
05/25/04 16:45 0.17 22.0 1000 0.1 1.7
07/29/02 17:13 0.16 1.6 <0.05 0.15 2400.0
06/04/02 16:26 0.43 9.5 0.15 2.4 18000.0
06/15/01 15:45 0.1 13.0 <0.1 5.3 13000.0
04/03/01 14:30 0.3 7.3 0.2 0.06 40.0
07/05/00 14:55 0.1 15.0 <0.1 0.35 5700.0
05/18/00 21:05 0.2 11.0 0.2 2.5 13000.0
02/24/00 16:05 0.5 3.5 0.5 0.16 580.0

Site Information

NameBeaver Creek, IA
Code05-BEI-10
CountyHoward
Latitude43.4599
Longitude-92.3062
UTM_X556125.0
UTM_Y4812118.0
Sampled byIowa DNR Fisheries ~ Decorah Hatchery

Sampling Location

Nearby Sampling Locations

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