Monthly Water Sampling Results for Little Iowa 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 00:00 Caleb Fischer, Aaren Mathison 7.69 11.26 52.3 59
09/12/17 09:15 Caleb Fischer 7.83 17.74 63.9 31
08/08/17 00:00 Caleb Fischer 90
07/11/17 00:00 Caleb Fischer 6.95 18.03 64.5 53
06/13/17 00:00 Caleb Fischer, Madeline Snyder 6.91 18.7 65.7 31
05/09/17 00:00 Caleb Fischer 6.64 12.06 53.7 79
04/11/17 00:00 Caleb Fischer 5.68 42.2 100+
10/11/16 09:25 Jennifer Ronnenberg 7.73 13.88 57.0 100+ 0.14 8.9 243 13.0 14.1 1
09/13/16 09:19 Jennifer Ronnenberg 7.68 16.95 62.5 100+ 0.2 10.5 465 14.0 13.1 5.5
08/09/16 09:15 7.1 20.01 68.0 100+ 0.2 11.9 393 16.9 13.6 5.5
07/12/16 09:25 7.4 22.41 72.3 76 0.11 7.0 677 15.7 17.5 7.3
06/14/16 09:18 Siepker & Pribyl 7.9 18.9 66.0 60+ 0.13 17.3 327 22.2 13.1 9
05/10/16 08:20 6.84 11.85 53.3 100+ 0.13 13.2 1211 22.0 14.6 1.5
04/12/16 08:40 7.82 3.75 38.8 100+ 0.13 14.4 12 18.9 15.2 2.3
10/06/15 09:00 Caleb Fisher & Jennifer Ronnenberg 8.17 13.4 56.1 60+ 0.04 4.7 187 16.1 23.9 5.3
09/01/15 09:45 Caleb Fisher & Jennifer Ronnenberg 7.01 23.0 73.4 60+ 0.06 6.3 323 15.4 22.0 5
08/04/15 00:00 Caleb Fisher & Lindsey Weiss 60+ 0.06 6.4 313 13.5 16.9 5.3
07/07/15 08:35 Jennifer Ronnenberg & Lyndsey Weiss 7.71 16.81 62.3 50 0.06 7.7 199 13.4 15.9 3.8
06/02/15 09:45 Jennifer Ronnenberg & Lyndsey Weiss 8.34 16.3 61.3 60+ 0.02 13.0 130
05/05/15 09:45 Caleb Fisher & Jennifer Ronnenberg 7.64 13.8 56.8 60+ 0.04 9.6 410
04/07/15 08:20 Caleb Fisher 8.14 46.7 60+ 0.05 10.0 10
10/07/14 09:40 Jennifer Ronnenberg 8.03 12.0 53.6 60+ 0.08 11.0 430
09/02/14 09:20 Jennifer Ronnenberg 7.47 19.9 67.8 28 0.12 3.9 1100
08/05/14 09:40 Jennifer Ronnenberg 8.03 21.8 71.2 51 0.09 2.8 86
07/08/14 09:15 Jennifer Ronnenberg 7.35 19.5 67.1 24 1.0 15.0 3100
06/03/14 09:45 Jennifer Ronnenberg 6.88 14.4 57.9 45 0.05 19.0 1100
05/06/14 09:40 Bill Kalishek 7.13 6.6 43.9 60+ 0.02 16.0 20
04/01/14 10:17 Theresa Shay 8.17 0.0 32.0 21 0.35 2.6 31
10/01/13 09:10 Joe MaGee 6.82 15.1 59.2 60+ 0.04 2.3 380 <0.05
09/03/13 09:40 Joe MaGee 7.1 17.1 62.8 59 0.05 2.1 110 <0.05
08/06/13 09:15 Joe MaGee 6.43 18.9 66.0 32 0.08 6.6 24000+ <0.05
07/09/13 00:00 Theresa Shay 22.7 72.9 59 0.06 13.0 910 0.09
06/04/13 09:20 Joe MaGee 7.44 12.51 54.5 60+ 0.06 16.0 84 <0.05
05/07/13 09:20 Joe MaGee 7.42 11.42 52.6 48 0.05 21.0 140 <0.05
04/09/13 09:15 Joe MaGee 6.63 4.1 39.4 60+ 0.15 4.2 41 0.22
10/02/12 14:10 Joe Magee 6.88 13.3 55.9 60+ 0.09 0.67 31 <0.05
09/04/12 14:15 Joe Magee 7.37 21.7 71.1 41 0.13 0.14 10 0.06
08/07/12 14:05 Joe Magee 7.36 21.4 70.5 28 0.14 0.22 31 0.16
07/02/12 14:20 0.12 2.0 31 0.09
06/05/12 14:20 Joe Magee 7.53 19.8 67.6 60 0.05 9.0 410 <0.05
05/01/12 14:15 Joe Magee 7.14 12.5 54.5 60+ 0.05 4.0 500 <0.05
04/03/12 14:25 Joe Magee 8.02 13.4 56.1 50 0.06 1.5 63 <0.05
09/06/11 14:20 7.37 15.1 59.2 60 0.09 2.3 140 <0.05
08/02/11 14:30 7.84 24.9 76.8 81 0.07 3.0 230 <0.05
07/05/11 14:20 Joe Magee 7.75 21.6 70.9 74 0.05 7.8 830 <0.05
06/07/11 14:35 Joe Magee 7.7 20.3 68.5 80 0.04 11.0 660 <0.05
05/03/11 14:20 Joe Magee/Jennifer Ronnenberg 7.93 6.2 43.2 100+ 0.02 12.0 52 <0.05
10/05/10 14:30 Jennifer Ronnenberg 7.98 10.98 51.8 100+ 0.03 10.0 330 <0.05
09/07/10 14:30 Joe Magee, Jennifer Ronnenberg 83 0.06 7.6 3600 <0.05
08/03/10 14:25 Joe Magee, Joel Grolen 7.29 20.9 69.6 100+ 0.05 9.6 1600 <0.05
07/06/10 14:25 Joe Magee 7.8 18.9 66.0 100+ 0.04 13.0 930 0.06
06/01/10 14:25 Joe Magee, EH 7.1 16.4 61.5 100+ 0.06 6.0 430 0.09
05/04/10 14:25 Joe Magee, Jason Carlson 6.7 11.6 52.9 100+ 0.03 9.1 85 <0.05
04/06/10 14:10 Joe Magee 6.96 9.1 48.4 100+ 0.02 7.0 30 <0.05
10/06/09 14:20 60+ 0.05 2.2 120 <0.05
09/01/09 14:30 0.06 1.7 75 <0.05
08/04/09 14:10 7.83 21.3 70.3 100+ 0.04 1.4 52 <0.05
07/07/09 14:05 7.7 19.7 67.5 60+ 0.03 7.6 610 <0.05
06/02/09 14:10 7.66 15.4 59.7 100+
05/05/09 13:55 7.76 12.4 54.3 100+ 0.05 6.9 98 <0.05
04/07/09 14:00 Adam King/Joe Magee 100+ 0.03 4.2 20 <0.05
10/07/08 13:55 0.04 2.0 290 <0.05 <0.05
09/02/08 13:55 8.36 22.2 72.0 47 0.1 1.6 140 <0.05 <0.05
08/05/08 14:15 7.68 21.1 70.0 60+ 0.03 3.6 130 <0.05 0.07
07/01/08 14:00 8.02 17.7 63.9 100+ 0.02 9.8 460 <0.05 0.06
06/03/08 14:10 7.72 11.8 53.2 60+ <0.02 14.0 250 <0.05 0.09
05/06/08 14:00 Adam Kina 15.0 59.0 60+ <0.02 12.0 60 <0.05 <0.05
04/01/08 14:00 Donna Rasmussen 7.25 0.3 32.5 11 0.29 9.2 150 0.56 <0.05
10/16/07 14:15 7.79 13.6 56.5 60+ 0.06 9.1 670 <0.05 0.06
09/04/07 14:20 7.96 19.2 66.6 60+ 0.04 7.4 800 <0.05 0.08
08/07/07 14:15 7.51 22.0 71.6 60+ 0.1 3.6 280 0.08 0.1
07/02/07 14:20 7.96 20.1 68.2 60+ 0.05 8.2 230 <0.05 0.11
06/05/07 14:15 8.03 13.6 56.5 60+ 0.03 14.0 250 <0.05 0.16
05/01/07 15:00 8.0 15.0 59.0 60+ 0.03 9.0 30 <0.05 0.06
04/03/07 16:05 7.79 5.6 42.1 60+ 0.02 13.0 36 <0.05 0.06
10/03/06 14:05 7.95 16.4 61.5 60+ 0.04 3.7 64 <0.05 <0.05
09/05/06 17:20 8.16 21.4 70.5 60+ 0.05 2.3 170 <0.05 0.07
08/01/06 14:00 7.99 26.6 79.9 58 0.11 1.3 91 0.1 0.07
07/05/06 13:55 7.93 19.3 66.7 43 0.06 7.0 70 <0.05 0.09
06/06/06 14:00 7.78 19.4 66.9 58 0.11 8.4 2800 0.07 0.26
05/02/06 14:27 7.9 9.44 49.0 60+ 0.03 15.0 82 0.07 0.06
04/04/06 14:20 8.15 2.8 37.0 50 0.07 14.0 510 <0.05 <0.05
10/04/05 14:15 8.52 19.2 66.6 60+ 0.04 11.0 570 <0.05 27.14 0.06
09/06/05 13:55 8.37 23.4 74.1 52 0.06 4.3 100 <0.05 0.08
08/02/05 14:49 7.46 22.1 71.8 4 0.06 7.9 320 0.05 4.35 0.15
07/05/05 19:30 8.34 22.0 71.6 60+ 0.06 9.0 160 <0.05 0.11
06/07/05 16:15 8.93 4.7 40.5 60+ 0.07 8.4 260 0.13 3.13 0.17
05/03/05 14:45 8.57 11.5 52.7 60+ <0.02 11.0 20 <0.05 14.29 0.08
04/06/05 19:10 8.57 11.5 52.7 60+ 0.06 8.9 <10 <0.05 <0.05
10/27/04 18:40 0.04 8.2 50 <0.05 0.05
09/30/04 17:20 400
09/28/04 13:45 0.04 11.0 <0.05 0.12
08/31/04 18:30 0.04 7.6 120 <0.05 0.12
07/27/04 18:15 0.03 9.3 40 0.08 0.19
06/29/04 17:20 0.03 16.0 150 <0.05 0.21
04/27/04 14:45 0.02 6.3 110 <0.05 0.22
05/02/02 16:15 <0.05 12.0 <0.05 0.07 <10.0
06/06/01 13:10 0.1 13.0 <0.1 0.16 350.0
10/11/00 14:55 0.2 5.4 <0.1 0.1 45.0
  • 10/10/2017: High stage. Slow flow. Cloudy conditions.
  • 09/12/2017: Stagnant flow, cloudy, turbid water.
  • 08/08/2017: Stagnant water. Small patchs of foam all over water surface. Some leaf debris.
  • 07/11/2017: Higher than normal flow. Slow almost stgnant. Turbid conditions
  • 06/13/2017: Almost stagnant. Turbid flow from recent rain events
  • 05/09/2017: Slow, almost stagnant flow. Slightly cloudy
  • 10/11/2016: very slow moving flow. Some leaf debris
  • 09/13/2016: Slow moving, clear base flow, leaves on surface
  • 08/09/2016: very slow to stagnant flow, leaves on surface
  • 07/12/2016: very slow, slightly cloudy, leaves on surface
  • 05/10/2016: (Lake Louise SP Bridge) slow, slightly cloudy
  • 04/12/2016: slow flow, slightly cloudy. Small veg debris
  • 10/06/2015: Stagnant no-flow, leaves on surface, mucky looking
  • 09/01/2015: Stagnant base flow, leaf litter
  • 08/04/2015: Stagnant, scum on surface, no flow
  • 07/07/2015: Elevated, slightly cloudy flow no debris, 3 in rain earlier in week
  • 06/02/2015: slow, nearly stagnant base flow, leaf debris
  • 05/05/2015: very slow, non-turbid
  • 04/07/2015: Almost stagnant flow
  • 10/07/2014: Leaf debris, very slow flow, clear
  • 09/02/2014: Stagenant flow, w/leaf/twig debris
  • 08/05/2014: Virtually no flow, leaf debris on surface
  • 07/08/2014: Cloudy, slow flow, small amount of leaf debris
  • 06/03/2014: Cloudy, leaf debris, elevated stage
  • 05/06/2014: Clear and normal water levels
  • 04/01/2014: Equipment Freezing
  • 10/01/2013: 70 degrees, partly sunny
  • 06/04/2013: 55 degrees, Raining, rained over weekend
  • 05/07/2013: 50 degrees and sunny
  • 10/02/2012: 70 degrees, sunny, dry
  • 09/04/2012: 85-90 degrees, sunny, dry
  • 08/07/2012: 75 degrees, sunny, rain over weekend, slow and stagnant, duckweed
  • 06/05/2012: 75-80 degrees, sunny, no more bridge construction
  • 05/01/2012: 50 degrees, cloudy, construction at bridge, sampled downstream
  • 04/03/2012: Bridge out - contrstruction taking place, sampled downstream of bridge
  • 09/06/2011: 65 degrees, sunny, rained over weekend
  • 08/02/2011: 85 degrees, partly cloudy
  • 07/05/2011: 50 degrees, Sunny, seemed stagnant, not much for flow
  • 06/07/2011: Hot!, Sunny
  • 05/03/2011: 50 degrees, Sunny
  • 10/05/2010: cool, calm water
  • 09/07/2010: 65 degrees, cloudy, rained last night
  • 08/03/2010: 75 degrees, cloudy
  • 07/06/2010: 75 degrees, cloudy
  • 06/01/2010: Sunny, 70 degrees
  • 05/04/2010: 60 degrees, sunny
  • 04/06/2010: 50 degrees, cloudly, light rain, rained 0.10 inches overnight
  • 04/07/2009: 35 degrees, sunny, thin layer of ice near banks, pH meter not working
  • 05/06/2008: Medium Flow
  • 04/01/2008: Bankful, muddy, slow current

Yearly Averages for Little Iowa (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 7.6 (8.2) 15.5 (15.1) 59.8 (59.2) 60+ (60) 0.08 (0.15) 8.2 (5.7) 177 (299) 0.06 (0.07) 12.23 (18.32) 0.1 (0.14) 50 (74) 16.46 (15.85) 16.35 (14.37) 5 (11)
2017 Mean 7.2 (8.1) 13.9 (14.7) 57.1 (58.4) 60+ (59)
2016 Mean 7.5 (8.2) 15.4 (15.1) 59.7 (59.2) 60+ (60+) 0.15 (0.37) 11.9 (7.3) 282 (236) 17.53 (16.26) 14.46 (14.3) 5 (14)
2015 Mean 7.8 (8.4) 15.2 (15.1) 59.4 (59.1) 60+ (60+) 0.05 (0.09) 8.2 (5.8) 153 (197) 14.6 (15.12) 19.68 (14.49) 5 (5)
2014 Mean 7.6 (8.2) 13.5 (13.9) 56.2 (57.0) 45 (48) 0.24 (0.16) 10.0 (6.2) 263 (479)
2013 Mean 7.0 (8.2) 14.5 (13.9) 58.2 (57.0) 59 (49) 0.07 (0.14) 9.3 (6.3) 340 (437) 0.07 (0.08)
2012 Mean 7.4 (8.3) 17.0 (16.3) 62.6 (61.4) 54 (60+) 0.09 (0.09) 2.5 (3.7) 63 (230) 0.07 (0.06)
2011 Mean 7.7 (8.4) 17.6 (16.9) 63.7 (62.5) 60+ (60+) 0.05 (0.08) 7.2 (5.5) 247 (214) <0.05 (<0.05)
2010 Mean 7.3 (8.0) 14.6 (13.9) 58.4 (57.0) 60+ (60+) 0.04 (0.1) 8.9 (6.1) 410 (436) 0.05 (<0.05)
2009 Mean 7.7 (8.2) 17.2 (13.4) 63.0 (56.1) 60+ (60+) 0.04 (0.08) 4.0 (4.3) 91 (204) <0.05 (0.05)
2008 Mean 7.8 (8.1) 14.7 (15.0) 58.4 (59.1) 60+ (58) 0.07 (0.12) 7.5 (5.7) 177 (357) 0.11 (0.09) 0.05 (0.09)
2007 Mean 7.9 (8.1) 15.6 (15.4) 60.1 (59.8) 60+ (53) 0.05 (0.22) 9.2 (6.2) 191 (745) <0.05 (0.06) 0.09 (0.11)
2006 Mean 8.0 (8.2) 16.5 (16.5) 61.6 (61.7) 60+ (56) 0.07 (0.14) 7.4 (5.3) 187 (388) 0.06 (<0.05) 0.09 (0.12)
2005 Mean 8.4 (8.5) 16.3 (16.6) 61.4 (61.9) 59 (55) 0.05 (0.11) 8.6 (5.3) 103 (180) 0.05 (0.11) 12.23 (18.32) 0.1 (0.14)
2004 Mean 0.03 (0.1) 9.7 (5.4) 108 (170) <0.05 (0.05) 0.15 (0.19)
2002 Mean 0.04 (0.21) 12.0 (5.9) <0.05 (0.15) 0.07 (0.09) <10 (32)
2001 Mean 0.1 (0.14) 13.0 (12.6) 0.08 (0.1) 0.16 (0.54) 350 (934)
2000 Mean 0.2 (0.41) 5.4 (4.8) 0.08 (0.12) 0.1 (0.21) 45 (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 31.1% 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 44.8% 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 Little Iowa (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 16:50 26 0.47 3.3 1100 0.93 0.06
07/25/05 19:15 8.6 17.9 64.2 48 0.08 2.0 180 0.17 0.1
05/25/04 12:26
05/25/04 12:26 0.08 24.0 450 <0.05 1.3
07/29/02 18:35 0.07 1.5 <0.05 0.13 100.0
06/04/02 16:30 0.87 12.0 0.53 14.0 1800.0
04/03/01 14:40 1.3 6.4 0.2 0.11 18.0
05/18/00 22:00 0.4 16.0 0.5 5.0+ 1200.0
02/24/00 16:30 1.8 5.0 0.7 0.17 220.0

Site Information

NameLittle Iowa
Code02-LIT-10
CountyMower
Latitude43.5324
Longitude-92.5185
UTM_X538905.0
UTM_Y4820050.0
Sampled byFillmore County Soil and Water Conservation District

Sampling Location

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