Monthly Water Sampling Results for South Bear 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
05/09/17 14:10 Kevin Hanson 8.58 11.6 52.9 58
04/11/17 12:34 Ross Evelsizer 8.25 7.6 45.7 60+
10/11/16 14:40 Kevin Hanson 8.74 14.4 57.9 60+ 0.24 3.2 20 6.1 11.4 3.2
09/13/16 15:30 Kevin Hanson 8.55 14.8 58.6 60+ 0.37 3.3 203 7.2 11.8 4.8
08/09/16 12:15 Sindelar - Guttenberg 8.7 17.5 63.5 60+ 0.28 3.8 201 7.6 13.9 2.7
07/12/16 14:15 R. Sindelar 8.89 20.5 68.9 60+ 0.2 3.6 7.2 13.7 2.7
06/14/16 13:45 Kevin Hanson 8.75 18.3 64.9 58 0.23 3.6 160 7.9 13.7 3.2
06/07/16 14:30 8.82 17.3 63.1 60+
05/10/16 15:00 Kevin Hanson 8.68 12.0 53.6 60+ 0.19 4.1 <4 8.0 13.2 1.3
04/12/16 12:42 Ross Evelsizer 7.9 46.2 60+ 0.17 3.7 <4 7.8 13.4 4.2
10/06/15 14:10 Kevin Hanson 8.97 13.4 56.1 60+ 0.06 4.4 41 7.7 14.6 1.8
09/01/15 14:45 Kevin Hanson 9.18 19.5 67.1 60+ 0.06 4.3 41 7.5 4.7 3
08/04/15 13:00 Josh Dansdill 8.6 18.0 64.4 60+ 0.07 3.5 75 8.1 12.8 2.8
07/07/15 14:20 Kevin Hanson 8.93 16.3 61.3 60+ 0.06 3.4 175 7.0 11.6 0.3
06/03/15 14:09 Kevin Hanson 8.86 16.3 61.3 60+ 0.04 3.8 <10
05/05/15 14:15 Kevin Hanson 8.63 13.2 55.8 60+ 0.02 3.5 10
04/07/15 13:45 Kevin Hanson 8.79 8.9 48.0 60+ 0.03 4.3 <10
10/07/14 14:10 Kevin Hanson 8.74 11.8 53.2 60+ 0.09 4.3 31
09/02/14 14:30 Kevin Hanson 8.92 18.4 65.1 60+ 0.07 4.4 180
08/05/14 12:50 Kevin Hanson 8.95 15.8 60.4 60+ 0.06 4.3 250
07/08/14 13:54 Kevin Hanson 9.14 19.3 66.7 60+ 0.05 3.9 370
06/03/14 14:25 Kevin Hanson 8.94 18.0 64.4 60+ 0.05 3.8 2200
05/06/14 13:40 Kevin Hanson 9.04 13.4 56.1 60+ <0.02 3.7 <10
04/01/14 11:56 Josh Dansdill 8.23 4.8 40.6 11 0.22 3.4 41
10/01/13 14:30 Kevin Hanson 8.82 15.2 59.4 60 0.04 4.8 31 <0.05
09/03/13 14:40 Kevin Hanson 8.69 14.2 57.6 60 0.03 4.7 63 <0.05
08/06/13 13:55 Kevin Hanson 8.6 16.3 61.3 60 0.04 4.1 120 0.06
07/09/13 00:00 Kevin Hanson 8.23 18.0 64.4 3 0.36 2.7 24000+ <0.05
06/04/13 00:00 Adam Grim & Crystal Krapfl 8.2 11.4 52.5 60+ 0.07 3.3 300 0.33
05/07/13 00:00 Kevin Hanson 8.75 13.9 57.0 60+ 0.04 3.2 10 <0.05
04/09/13 00:00 Josh Dansdill 8.2 7.3 45.1 60 0.05 3.9 41 <0.05
10/02/12 19:50 Kevin Hanson 8.68 14.6 58.3 60+ 0.02 4.7 20 <0.05
09/04/12 18:45 Kevin Hanson 8.44 19.8 67.6 60+ 0.07 4.8 260 <0.05
08/07/12 13:50 Kevin Hanson 8.17 17.0 62.6 60+ 0.04 4.9 170 <0.05
07/02/12 18:37 0.05 4.5 160 0.05
06/05/12 18:51 Dan Weber 8.65 20.7 69.3 60+ 0.06 4.1 52 <0.05
05/01/12 19:15 Kevin Hanson 8.57 12.8 55.0 60+ 0.03 4.4 10 <0.05
04/03/12 19:40 Kevin Hanson 8.8 15.4 59.7 60+ 0.04 4.7 10 <0.05
10/04/11 18:45 0.06 4.9 10 <0.05
09/06/11 18:10 Nikki Schlitter 9.19 13.2 55.8 60+ 0.05 4.8 160 <0.05
08/02/11 19:15 Kevin Hanson 9.0 18.1 64.6 60+ 0.06 4.6 120 <0.05
07/05/11 19:08 Kevin Hanson 9.0 18.6 65.5 60+ 0.04 4.0 41 <0.05
06/07/11 19:36 Kevin Hanson 9.0 22.2 72.0 60+ 0.05 4.0 31 <0.05
05/03/11 16:15 8.6 8.9 48.0 60+ 0.03 3.9 <10 <0.05
10/05/10 18:50 8.7 14.4 57.9 60+ 0.04 4.9 31 <0.05
09/06/10 20:15 Aaron Schwartzhoff 8.6 12.9 55.2 60+ 0.07 4.6 230 <0.05
08/03/10 19:20 Aaron Schwartzhoff 8.7 18.1 64.6 60+ 0.08 4.2 <0.05
07/06/10 19:13 Kevin Hanson 60+ 0.08 3.8 4100 <0.05
06/01/10 17:00 Aaron Schwartzhoff 60+ 0.05 4.1 41 <0.05
05/04/10 18:35 Kevin Hanson 60+ 0.03 4.1 <10 <0.05
04/06/10 19:15 Aaron Schwartzhoff 60+ 0.03 4.1 <10 <0.05
10/06/09 17:55 8.25 10.2 50.4 60+ 0.06 4.6 52 <0.05
09/01/09 17:45 0.06 4.6 31 <0.05
08/04/09 18:20 8.44 18.7 65.7 60+ 0.03 5.2 41 <0.05
07/08/09 17:20 8.26 14.4 57.9 60+ 0.07 4.2 130000 <0.05
06/02/09 18:35 8.6 17.1 62.8 60+ 0.05 4.3 10 <0.05
05/05/09 18:43 8.51 15.1 59.2 60+ 0.02 4.2 20 <0.05
04/07/09 17:45 8.39 7.3 45.1 60+ 0.03 4.9 <10 <0.05
10/07/08 19:25 0.04 4.9 40 <0.05
09/02/08 18:30 8.35 16.4 61.5 60+ 0.07 5.1 130 <0.05
08/05/08 17:30 8.2 15.7 60.3 60+ 0.07 5.2 2200 <0.05
07/01/08 18:45 8.46 19.1 66.4 60+ 0.05 4.1 70 <0.05
06/03/08 18:00 8.51 14.4 57.9 60+ 0.04 4.2 80 <0.05
05/06/08 18:50 Scott Gritters 8.25 15.2 59.4 60+ 0.05 3.8 <10 <0.05
04/01/08 15:46 Aaron Schwartzhoff 5.6 42.1 22 0.18 4.1 380 0.14
10/16/07 19:45 8.56 13.8 56.8 60+ 0.05 4.3 110 <0.05
09/04/07 19:00 8.34 20.9 69.6 60+ 0.07 3.4 110 <0.05
08/07/07 17:24 8.49 20.6 69.1 60+ 0.04 4.6 520 <0.05
07/02/07 19:50 8.66 18.2 64.8 60+ 0.04 4.3 82 <0.05
06/05/07 18:50 8.42 16.1 61.0 60+ 0.08 3.5 1000 <0.05
05/01/07 16:30 8.6 13.8 56.8 60+ 0.03 3.3 140 <0.05
04/03/07 17:05 8.09 8.9 48.0 55 0.08 3.8 460 <0.05
10/03/06 17:40 3.8 40 <0.05
09/05/06 18:40 60+ 0.04 4.2 280 <0.05
08/01/06 19:00 60+ 0.07 3.9 180 <0.05
07/05/06 19:53 8.8 20.2 68.4 60+ 0.05 3.6 <0.05
06/06/06 19:26 8.37 21.3 70.3 11 0.18 2.6 5700 <0.05
05/02/06 18:00 8.93 16.1 61.0 60+ 0.03 3.8 55 <0.05
04/04/06 18:30 60+ 0.04 3.5 <10 <0.05
10/04/05 17:35 8.51 19.5 67.1 60+ 0.07 4.0 70 0.09 8.69
09/06/05 20:15 8.61 20.3 68.5 0.07 3.7 140 <0.05
08/02/05 17:50 8.42 22.8 73.0 60+ 0.08 3.6 260 <0.05 9.02
07/05/05 20:30 8.64 21.4 70.5 60+ 0.07 3.8 130 <0.05
06/07/05 19:40 8.9 11.4 52.5 60+ 0.05 3.5 45 0.06 10.87
05/03/05 19:20 8.64 14.5 58.1 60+ 0.02 3.7 <10 <0.05 9.33
04/06/05 17:15 8.64 14.5 58.1 60+ 0.05 3.4 <10 6.4
10/26/04 18:25 0.06 4.2 50 <0.05
09/30/04 15:20 91
09/28/04 18:55 0.04 3.9 <0.05
08/31/04 19:30 0.06 3.8 230 <0.05
07/27/04 18:30 0.03 3.7 90 <0.05
06/30/04 19:30 0.09 3.3 80 <0.05
04/27/04 18:15 0.03 3.2 <10 <0.05
05/02/02 18:00 <0.05 3.6 <0.05 0.06 <10.0
01/30/02 20:40 <0.05 4.7 <0.05 <0.05 10.0
10/11/00 19:10 0.2 4.5 <0.1 0.06 10.0
05/17/00 22:00 0.5 3.0 0.3 1.6 95000.0
  • 05/09/2017: overcast, temps mid 50s. T-storms overnight over UIR, dropping variable amounts of rain (0.10 - 1.33 inches in Dorchester)
  • 08/04/2015: Low & clear
  • 06/03/2015: Data from 6/3/2015 (Regular Sampling date was 6/2/2015. No rain event occurred overnight.)
  • 05/06/2014: ph meter may not be working properly
  • 04/01/2014: muddy, the water level has dropped significanlty (grass flattended)
  • 05/07/2013: Low and Clear
  • 05/03/2011: Clear - normal flow
  • 09/06/2010: Slightly high, crystal clear
  • 08/03/2010: a little high
  • 06/01/2010: Normal Flow
  • 04/01/2008: Slightly High Water, Chalky Water, Recent Rain

Yearly Averages for South Bear (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 8.6 (8.2) 15.3 (15.0) 59.6 (59.0) 60+ (60) 0.08 (0.15) 4.0 (5.7) 73 (299) 0.14 (0.07) 9.48 (18.32) 0.44 (0.14) 93 (74) 7.46 (15.85) 12.25 (14.37) 3 (11)
2017 Mean 8.4 (8.2) 9.6 (10.0) 49.3 (50.0) 60+ (60+)
2016 Mean 8.7 (8.2) 15.3 (15.1) 59.6 (59.2) 60+ (60+) 0.24 (0.37) 3.6 (7.3) 33 (236) 7.4 (16.26) 13.01 (14.3) 3 (14)
2015 Mean 8.9 (8.4) 15.1 (15.1) 59.1 (59.1) 60+ (60+) 0.05 (0.09) 3.9 (5.8) 28 (197) 7.58 (15.12) 10.93 (14.49) 2 (5)
2014 Mean 8.9 (8.2) 14.5 (13.9) 58.1 (57.0) 60+ (48) 0.08 (0.16) 4.0 (6.2) 121 (479)
2013 Mean 8.5 (8.2) 13.8 (13.9) 56.8 (57.0) 55 (49) 0.09 (0.14) 3.8 (6.3) 135 (437) 0.08 (0.08)
2012 Mean 8.6 (8.3) 16.7 (16.3) 62.1 (61.4) 60+ (60+) 0.04 (0.09) 4.6 (3.7) 50 (230) <0.05 (0.06)
2011 Mean 9.0 (8.4) 16.2 (16.9) 61.2 (62.5) 60+ (60+) 0.05 (0.08) 4.4 (5.5) 35 (214) <0.05 (<0.05)
2010 Mean 8.7 (8.0) 15.1 (13.9) 59.2 (57.0) 60+ (60+) 0.05 (0.1) 4.3 (6.1) 65 (436) <0.05 (<0.05)
2009 Mean 8.4 (8.2) 13.8 (13.4) 56.9 (56.1) 60+ (60+) 0.05 (0.08) 4.6 (4.3) 75 (204) <0.05 (0.05)
2008 Mean 8.4 (8.1) 14.4 (15.0) 57.9 (59.1) 60+ (58) 0.07 (0.12) 4.5 (5.7) 110 (357) 0.05 (0.09) (0.09)
2007 Mean 8.5 (8.1) 16.0 (15.4) 60.9 (59.8) 60+ (53) 0.06 (0.22) 3.9 (6.2) 229 (745) <0.05 (0.06) (0.11)
2006 Mean 8.7 (8.2) 19.2 (16.5) 66.6 (61.7) 60+ (56) 0.07 (0.14) 3.6 (5.3) 131 (388) <0.05 (<0.05) (0.12)
2005 Mean 8.6 (8.5) 17.8 (16.6) 64.0 (61.9) 60+ (55) 0.06 (0.11) 3.7 (5.3) 51 (180) 0.96 (0.11) 9.48 (18.32) (0.14)
2004 Mean 0.05 (0.1) 3.7 (5.4) 63 (170) <0.05 (0.05) (0.19)
2002 Mean 0.04 (0.21) 4.2 (5.9) <0.05 (0.15) 0.05 (0.09) <10 (32)
2001 Mean (0.14) (12.6) (0.1) (0.54) (934)
2000 Mean 0.35 (0.41) 3.8 (4.8) 0.19 (0.12) 0.83 (0.21) 975 (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 0.0% 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 18.6% 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 South Bear (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 16:00 17 0.45 1.9 1700 0.58
07/25/05 20:00 8.74 21.6 70.9 60+ 0.11 3.6 1100 <0.05
05/25/04 19:50
05/25/04 19:50 0.12 2.9 2200 0.19
07/29/02 18:35 0.09 3.6 <0.05 0.05 73000.0
06/04/02 15:00 0.39 3.2 0.1 0.88 89000.0
06/15/01 16:59 <0.1 3.6 <0.1 0.14 11000.0
04/03/01 18:18 <0.1 4.1 <0.1 <0.05 <10.0
08/17/00 19:45 <0.1 3.7 <0.1 0.08 1300.0
07/05/00 20:50 0.1 3.8 <0.1 0.37 5300.0
02/24/00 20:25 0.5 2.7 0.5 0.08 1600.0

Site Information

NameSouth Bear
Code23-SBE-10
CountyWinneshiek
Latitude43.4475
Longitude-91.6181
UTM_X611817.0
UTM_Y4811439.0
Sampled byIowa DNR Fisheries ~ Guttenberg Hatchery

Sampling Location

Nearby Sampling Locations

← Upstream

    Downstream →