Patterson Creek [21-PAT-10]

NamePatterson Creek
Code21-PAT-10
CountyAllamakee
Latitude43.3602
Longitude-91.5749
Sampled byIowa DNR Fisheries ~ Guttenberg Hatchery

Sampling Location

Yearly Averages for Patterson Creek [21-PAT-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 Chloride mg/L Sulfate mg/L Total Suspended Solids mg/L
All Years 8.4 (8.2) 17.1 (14.9) 62.8 (58.9) 56 (60+) 0.11 (0.12) 2.4 (5.6) 437 (272) 0.06 (0.07) 5.66 (18.32) 0.08 (0.14) 48 (13321) 6.89 (14.45) 15.09 (14.65) 21 (19)
2022 Mean 7.8 (7.9) 19.7 (15.9) 67.5 (60.7) 50 (60+) 0.06 (0.09) 2.3 (6.1) 577 (250) 6.53 (14.69) 16.19 (15.44) 12 (14)
2021 Mean 8.1 (8.1) 16.2 (15.5) 61.3 (59.8) 53 (60+) 0.07 (0.06) 2.2 (4.5) 252 (166) 6.39 (13.83) 16.73 (16.38) 13 (7)
2020 Mean 8.2 (8.1) 14.9 (13.0) 58.8 (55.5) 60+ (60+) 0.04 (0.06) 3.2 (5.2) 199 (121) 6.89 (13.01) 14.79 (14.7) 7 (10)
2019 Mean 8.2 (7.9) 16.5 (13.9) 61.8 (57.0) 60+ (60+) 0.08 (0.11) 3.3 (5.6) 230 (189) 6.49 (12.79) 14.16 (13.72) 6 (10)
2018 Mean 8.3 (8.2) 16.9 (14.1) 62.4 (57.4) 37 (43) 0.1 (0.26) 3.4 (6.1) 428 (391) 8.0 (14.8) 15.03 (13.58) 100 (72)
2017 Mean 8.5 (8.1) 17.0 (14.7) 62.6 (58.4) 55 (59) 0.1 (0.12) 2.6 (5.7) 495 (359) 7.83 (15.39) 14.71 (14.51) 9 (15)
2016 Mean 8.6 (8.2) 17.8 (15.1) 64.1 (59.2) 60+ (60+) 0.08 (0.12) 2.5 (7.3) 217 (236) 6.73 (16.26) 15.39 (14.3) 9 (14)
2015 Mean 8.7 (8.4) 17.6 (15.1) 63.7 (59.1) 60+ (60+) 0.05 (0.09) 1.6 (5.8) 265 (197) 5.8 (15.12) 12.78 (14.49) 4 (5)
2014 Mean 8.7 (8.2) 16.3 (13.9) 61.3 (57.0) 48 (48) 0.12 (0.16) 2.7 (6.2) 289 (479)
2013 Mean 8.4 (8.2) 16.1 (13.9) 60.9 (57.0) 41 (49) 0.1 (0.14) 2.1 (6.3) 960 (437) 0.09 (0.08)
2012 Mean 8.4 (8.3) 18.9 (16.3) 66.0 (61.4) 60+ (60+) 0.06 (0.09) 1.4 (3.7) 860 (230) <0.05 (0.06)
2011 Mean 8.9 (8.4) 18.2 (16.9) 64.8 (62.5) 54 (60+) 0.07 (0.08) 2.8 (5.5) 258 (214) <0.05 (<0.05)
2010 Mean 8.6 (8.0) 16.1 (13.9) 61.0 (57.0) 58 (60+) 0.13 (0.1) 2.9 (6.1) 1092 (436) <0.05 (<0.05)
2009 Mean 8.5 (8.2) 14.9 (13.4) 58.8 (56.1) 58 (60+) 0.06 (0.08) 1.7 (4.3) 457 (204) <0.05 (0.05)
2008 Mean 8.3 (8.1) 17.1 (15.0) 62.8 (59.1) 58 (58) 0.15 (0.12) 2.8 (5.7) 752 (357) 0.18 (0.09) (0.09)
2007 Mean 8.3 (8.1) 17.6 (15.4) 63.7 (59.8) 44 (53) 0.51 (0.22) 2.9 (6.2) 1377 (745) 0.09 (0.06) (0.11)
2006 Mean 8.6 (8.2) 19.7 (16.5) 67.4 (61.7) 60+ (56) 0.07 (0.14) 1.7 (5.3) 540 (388) <0.05 (<0.05) (0.12)
2005 Mean 8.5 (8.5) 17.7 (16.6) 63.8 (61.9) 60+ (55) 0.06 (0.11) 1.2 (5.3) 308 (180) <0.05 (0.11) 5.66 (18.32) (0.14)
2004 Mean 0.08 (0.1) 1.6 (5.4) 312 (170) <0.05 (0.05) (0.19)
2002 Mean 0.04 (0.21) 2.4 (5.9) <0.05 (0.15) 0.1 (0.09) 27 (11159)
2001 Mean (0.14) (12.6) (0.1) (0.54) (10137)
2000 Mean 0.4 (0.41) 1.6 (4.8) 0.08 (0.12) 0.06 (0.21) 90 (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 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 72.9% 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).

Download in CSV format

Monthly Water Sampling Data for Patterson Creek [21-PAT-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 Chloride mg/L Sulfate mg/L Total Suspended Solids mg/L
10/11/22 13:35 Kevin Hanson 8.4 15.5 59.9 60+ 0.04 2.1 384 5.0 15.6 3.2
09/13/22 13:15 Kevin Hanson 7.8 16.7 62.1 60+ 0.03 2.3 241 5.2 14.5 2
08/09/22 13:00 Kevin Hanson 6.64 21.2 70.2 28 0.07 2.1 1106 7.4 15.3 5.2
07/12/22 12:50 21.9 71.4 60+ 0.06 2.7 450 7.2 17.0 8
06/14/22 14:44 Kevin Hanson 25.6 78.1 35 0.08 3.1 754 7.9 16.7 13.6
05/10/22 13:20 Kevin Hanson 8.25 17.5 63.5 2 0.08 1.8 19863 6.1 15.5 47.2
04/12/22 11:02 Ross Evelsizer 60+ 0.08 2.2 31 6.9 18.7 3.2
10/12/21 13:35 Kevin Hanson 14.6 58.3 44 0.05 2.2 934 6.1 17.2 14.8
09/14/21 12:55 Kevin Hanson 8.42 16.7 62.1 58 0.05 2.2 1187 6.6 16.3 8
08/10/21 12:10 Kevin Hanson 7.88 20.5 68.9 12 0.21 2.2 8664 6.5 16.4 51
07/13/21 12:55 Kevin Hanson 7.9 22.2 72.0 40 0.07 2.0 677 6.4 17.3 4
06/08/21 07:39 Kevin Hanson 17.2 63.0 60+ 0.03 2.1 30 6.0 16.2 7.2
05/11/21 13:05 Kevin Hanson 8.28 14.7 58.5 60+ 0.03 2.2 41 6.2 16.7 2.4
04/13/21 11:45 Josh Dansdill 7.8 46.0 60+ 0.02 2.5 <10 6.9 17.0 1.2
10/13/20 14:15 Kevin Hanson 8.72 14.3 57.7 60+ 0.03 2.8 663 7.2 14.9 5.6
09/08/20 13:48 Kevin Hanson 8.3 12.1 53.8 58 0.04 2.8 2613 6.3 15.0 6.4
08/11/20 14:00 Denver Link 8.48 20.1 68.2 60+ 0.02 3.0 <10 6.4 15.2 2.8
07/14/20 12:15 Denver Link 7.72 19.1 66.4 28 0.09 3.9 464 7.0 14.5 22
06/09/20 11:45 Denver Link 7.98 16.9 62.4 60+ 0.02 2.9 624 7.3 14.5 4.8
05/12/20 13:30 Kevin Hanson 8.22 14.7 58.5 60+ 0.02 2.8 41 6.8 14.8 5.6
04/14/20 14:30 Kevin Hanson 8.24 6.9 44.4 60+ 0.03 3.9 75 7.2 14.6 4
10/08/19 13:50 Kevin Hanson 8.58 14.6 58.3 60+ 0.09 4.3 450 7.3 14.0 10.8
09/10/19 13:20 Josh Dansdill 18.3 65.0 60+ 0.09 2.7 1850 5.9 14.8 12.8
08/13/19 12:00 Dakota 8.15 17.1 62.8 60+ 0.07 2.8 545 6.0 12.9 3.6
07/09/19 14:45 8.04 20.4 68.7 40 0.09 4.6 173 6.8 13.8 5.5
06/11/19 14:00 Kevin Hanson 7.92 13.7 56.7 60+ 0.08 3.2 836 7.0 14.2 1
05/14/19 13:55 Karen Osterkamp 8.1 15.0 59.0 60+ 2.7 52 6.9 14.5 5
04/09/19 00:00 0.08 2.6 10 5.5 14.9 2.8
10/09/18 13:50 Tori Nimrod 8.66 14.8 58.6 4.2 3.0 19863 7.2 10.7 612
09/11/18 13:50 Theresa Shay & Kevin Hanson 8.12 19.6 67.3 42 0.09 3.7 638 8.6 16.5 14.8
08/14/18 12:45 Kevin Hanson 8.31 19.7 67.5 60+ 0.07 2.7 201 9.0 17.5 2.8
07/10/18 13:05 Kevin Hanson 8.27 22.0 71.6 30 0.1 3.2 262 7.9 15.8 15
06/12/18 13:14 Kevin Hanson 8.26 15.6 60.1 24 0.13 3.9 1720 7.3 13.7 31
05/08/18 12:40 Kevin Hanson 8.28 16.4 61.5 36 0.12 4.8 231 9.6 15.2 17
04/17/18 13:25 Kevin Hanson 10.0 50.0 54 0.11 2.7 10 6.4 15.8 6.5
10/10/17 13:40 8.39 11.7 53.1 57 0.11 2.2 789 6.0 16.1 1.2
09/12/17 14:30 Karen Osterkamp 8.7 21.3 70.3 42 0.1 2.5 1723 7.4 16.8 34.8
08/08/17 13:20 Kevin Hanson 8.52 20.9 69.6 54 0.08 2.1 275 6.0 15.2 6.4
07/11/17 00:00 Guttenberg AIS 8.57 20.3 68.5 57 0.09 2.1 450 6.2 14.5 2.5
06/13/17 13:15 Kevin Hanson 8.5 22.1 71.8 59 0.08 2.5 1019 15.9 14.2 6
05/09/17 13:30 Kevin Hanson 8.41 13.6 56.5 46 0.15 3.4 573 6.5 12.7 5.6
04/11/17 13:30 Ross Evelsizer 8.38 9.0 48.2 60+ 0.09 3.1 74 6.8 13.5 8
10/11/16 13:50 Kevin Hanson 8.58 16.6 61.9 60+ 0.07 2.2 122 5.7 13.7 3.3
09/13/16 14:35 Kevin Hanson 8.41 16.2 61.2 57 0.11 5.3 1211 9.5 14.5 7
08/09/16 11:25 Sindelar - Guttenberg 8.55 20.2 68.4 60+ 0.08 1.6 404 5.8 16.2 2.9
07/12/16 12:55 R. Sindelar 8.66 21.8 71.2 60+ 0.08 1.7 464 5.7 15.5 6.3
06/14/16 12:40 Kevin Hanson 8.49 21.8 71.2 15 0.1 3.0 1210 7.4 15.7 37
06/07/16 14:00 8.68 20.3 68.5 56
05/10/16 14:20 Kevin Hanson 8.57 13.7 56.7 60+ 0.07 1.9 213 6.3 15.8 2.4
04/12/16 13:26 Ross Evelsizer 8.84 12.0 53.6 60+ 0.06 2.1 <4 6.7 16.3 1.8
10/06/15 13:15 Kevin Hanson 8.8 15.0 59.0 59 0.05 1.7 637 5.4 16.9 5.5
09/01/15 14:05 Kevin Hanson 9.05 23.7 74.7 55 0.06 1.3 383 5.4 5.5 4.2
08/04/15 13:51 Josh Dansdill 8.5 21.6 70.9 60+ 0.06 1.7 97 6.4 14.6 5.5
07/07/15 13:40 Kevin Hanson 8.65 20.2 68.4 60+ 0.07 1.9 6.0 14.1 1.3
06/03/15 13:30 Kevin Hanson 8.7 18.5 65.3 60+ 0.05 1.5 510
05/05/15 13:40 Kevin Hanson 8.5 13.9 57.0 60+ 0.03 1.3 260
04/07/15 13:15 Kevin Hanson 8.8 10.3 50.5 60+ 0.03 1.6 110
10/07/14 13:30 Kevin Hanson 8.72 13.4 56.1 60+ 0.17 1.5 300
09/02/14 13:45 Kevin Hanson 8.93 20.9 69.6 48 0.09 1.5 170
08/05/14 12:10 Kevin Hanson 8.84 17.9 64.2 60+ 0.08 1.4 330
07/08/14 13:07 Kevin Hanson 8.64 21.4 70.5 12 0.11 6.0 4900
06/03/14 13:35 Kevin Hanson 8.7 21.1 70.0 11 0.19 3.8 2500
05/06/14 13:00 Kevin Hanson 8.86 14.4 57.9 60+ 0.03 1.9 41
04/01/14 11:10 Josh Dansdill 8.15 5.0 41.0 49 0.15 2.7 20
10/01/13 13:15 Kevin Hanson 8.78 17.0 62.6 60 0.03 1.6 330 <0.05
09/03/13 14:00 Kevin Hanson 8.68 18.2 64.8 60 0.03 1.6 130 <0.05
08/06/13 13:00 Kevin Hanson 8.34 20.0 68.0 33 0.08 1.7 1300 0.06
07/09/13 00:00 Kevin Hanson 8.13 22.0 71.6 5 0.3 1.8 24000+ 0.09
06/04/13 00:00 Adam Grim & Crystal Krapfl 8.1 12.4 54.3 40 0.08 4.4 740 0.29
05/07/13 00:00 Kevin Hanson 8.73 16.1 61.0 60+ 0.06 2.0 <0.05
04/09/13 00:00 Josh Dansdill 8.16 6.8 44.2 17 0.15 1.9 660 <0.05
10/02/12 19:00 Kevin Hanson 8.68 17.7 63.9 60+ 0.02 1.2 490 <0.05
09/04/12 18:15 Kevin Hanson 8.49 23.0 73.4 53 0.1 1.4 6500 <0.05
08/07/12 13:05 Kevin Hanson 7.79 20.4 68.7 58 0.04 1.4 1200 <0.05
07/02/12 17:51 0.08 1.2 2400 <0.05
06/05/12 17:40 Dan Weber 8.68 21.0 69.8 45 0.06 1.3 240 <0.05
05/01/12 18:20 Kevin Hanson 8.68 13.9 57.0 60+ 0.06 1.7 990 <0.05
04/03/12 19:00 Kevin Hanson 8.1 17.4 63.3 60+ 0.03 1.4 160 <0.05
10/04/11 17:45 0.07 2.1 2100 <0.05
09/06/11 17:20 Nikki Schlitter 9.33 15.5 59.9 60+ 0.07 2.2 690 <0.05
08/02/11 18:35 Kevin Hanson 8.9 21.0 69.8 39 0.08 2.4 790 <0.05
07/05/11 18:21 Kevin Hanson 8.8 21.4 70.5 40 0.07 2.8 790 <0.05
06/07/11 18:45 Kevin Hanson 8.8 23.9 75.0 46 0.09 2.9 <10 <0.05
05/03/11 16:55 8.7 9.4 49.0 60+ 0.03 4.2 41 <0.05
10/05/10 17:28 8.7 14.3 57.8 60+ 0.05 2.5 340 <0.05
09/06/10 19:25 Aaron Schwartzhoff 8.6 13.8 56.8 60+ 0.06 3.0 3600 <0.05
08/03/10 18:32 Aaron Schwartzhoff 8.5 20.2 68.4 54 0.08 3.7 1200 <0.05
07/06/10 18:36 Kevin Hanson 5 0.56 3.7 29000 <0.05
06/01/10 16:10 Aaron Schwartzhoff 59 0.07 2.6 1200 <0.05
05/04/10 17:45 Kevin Hanson 60+ 0.05 1.9 98 <0.05
04/06/10 18:25 Aaron Schwartzhoff 60+ 0.04 2.8 370 0.06
10/06/09 17:10 8.15 11.1 52.0 26 0.13 1.6 12000 0.07
09/01/09 17:20 0.06 1.9 460 <0.05
08/04/09 17:40 8.49 20.4 68.7 58 0.05 1.5 150 <0.05
07/08/09 16:40 8.3 16.0 60.8 49 0.09 1.9 3300 <0.05
06/02/09 17:43 8.64 17.5 63.5 60+ 0.04 1.3 270 <0.05
05/05/09 17:45 8.54 16.2 61.2 60+ 0.05 1.6 700 <0.05
04/07/09 16:55 8.6 8.2 46.8 60+ <0.02 1.8 <10 <0.05
10/07/08 18:35 0.03 1.8 240 <0.05
09/02/08 17:35 8.23 22.7 72.9 60+ 0.05 1.9 740 <0.05
08/05/08 16:40 8.26 19.4 66.9 60+ 0.08 2.7 2700 <0.05
07/01/08 17:00 8.22 22.01 71.6 60+ 0.04 2.8 260 <0.05
06/03/08 17:32 8.39 16.1 61.0 60+ 0.03 2.3 2200 <0.05
05/06/08 17:35 Scott Gritters 8.2 17.3 63.1 52 0.07 3.9 60 <0.05
04/01/08 15:00 Aaron Schwartzhoff 5.0 41.0 8 0.73 4.4 8300 1.0
10/16/07 18:30 8.4 13.8 56.8 60+ 0.04 3.3 520 <0.05
09/04/07 18:00 8.32 21.9 71.4 60+ 0.06 4.4 1200 <0.05
08/07/07 17:12 8.16 23.0 73.4 1 2.6 1.9 22000 0.26
07/02/07 19:05 8.61 20.9 69.6 60+ 0.05 2.6 380 <0.05
06/05/07 17:30 8.34 16.8 62.2 12 0.2 3.7 3600 <0.05
05/01/07 17:15 8.63 17.1 62.8 60+ 0.03 1.4 10 <0.05
04/03/07 17:50 7.88 10.0 50.0 7 0.59 3.3 50000 0.16
10/03/06 17:00 8.56 17.1 62.8 60+ 1.2 820 <0.05
09/05/06 18:00 60+ 0.06 1.3 1000 <0.05
08/01/06 18:20 53 0.07 1.2 750 0.05
07/05/06 18:00 8.71 23.6 74.5 60+ 0.05 1.4 1100 <0.05
06/06/06 18:28 8.62 22.5 72.5 60+ 0.09 1.6 6700 <0.05
05/02/06 16:40 8.69 15.5 59.9 60+ 0.04 2.5 370 <0.05
04/04/06 17:55 60+ 0.08 2.7 <10 <0.05
10/04/05 16:00 8.4 21.2 70.2 55 0.1 1.4 13000 <0.05 6.06
09/06/05 19:30 8.44 22.6 72.7 0.09 1.1 840 0.08
08/02/05 17:15 8.02 22.0 71.6 56 0.06 1.4 820 <0.05 7.28
07/05/05 19:05 60+ 0.05 0.99 300 <0.05
06/07/05 20:35 8.8 12.0 53.6 60+ 0.04 1.1 410 <0.05 5.04
05/03/05 17:48 8.75 14.1 57.4 60+ <0.02 1.3 <10 <0.05 4.24
04/06/05 16:09 8.75 14.1 57.4 60+ 0.03 1.2 30 <0.05
10/26/04 17:25 0.11 1.6 2000 <0.05
09/28/04 18:22 0.04 1.3 250 <0.05
08/31/04 19:00 0.07 1.7 410 <0.05
07/27/04 17:15 0.06 2.4 420 <0.05
06/30/04 18:00 0.06 1.8 360 <0.05
04/27/04 16:45 0.14 0.91 30 <0.05
05/02/02 16:37 <0.05 3.0 <0.05 0.08 45.0
01/30/02 19:30 <0.05 1.8 <0.05 0.11 <10.0
10/11/00 20:30 0.4 1.6 <0.1 0.06 90.0
  • 08/09/2022: Cows in water upstream
  • 06/14/2022: pH Meter Not Calibrated
  • 08/10/2021: cattle in strea 1/4 mile upstream
  • 04/09/2019: Field sheet missing
  • 07/10/2018: Cattle in stream at site
  • 09/12/2017: Cattle wading in stream
  • 05/09/2017: overcast, temps mid 50s. T-storms overnight over UIR, dropping variable amounts of rain (0.10 - 1.33 inches in Dorchester)
  • 06/14/2016: Cattle in field upstream
  • 08/04/2015: Low & clear
  • 07/07/2015: - no E coli sample
  • 06/03/2015: Data from 6/3/2015 (Regular Sampling date was 6/2/2015. No rain event occurred overnight.)
  • 07/08/2014: Cattle upstream
  • 06/03/2014: Cattle in stream
  • 05/06/2014: ph meter may not be working properly
  • 04/01/2014: somewhat clear, lots of areas washed out
  • 05/07/2013: Low and Clear
  • 06/05/2012: Cattle in Creek
  • 08/02/2011: Rain Stopped
  • 05/03/2011: Clear - normal flow
  • 09/06/2010: Slightly high
  • 08/03/2010: a little high
  • 06/01/2010: Normal Flow
  • 04/01/2008: Cattle Upstream, High water, Muddy, Recent Rain

One-time Rainfall Event Samples for Patterson 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 Chloride mg/L Sulfate mg/L Total Suspended Solids mg/L
03/14/07 16:55 6 0.55 1.9 600 0.72
07/25/05 18:00 8.55 18.0 64.4 56 0.9 0.84 130000 0.17
05/25/04 17:40
05/25/04 17:40 0.13 4.1 2100 0.11
07/29/02 17:15 1.7 1.5 0.12 0.46 83000.0
06/04/02 18:15 1.4 2.4 0.33 3.7 110000.0
06/15/01 16:06 1.8 2.2 0.3 8.6 170000.0
04/03/01 16:44 0.4 4.4 0.3 0.12 110.0
08/17/00 18:05 0.3 3.1 0.1 0.22 45000.0
07/05/00 19:30 0.1 3.4 <0.1 0.37 2100.0
05/18/00 22:10 0.2 1.3 0.2 0.23 83000.0
02/24/00 19:00 0.3 1.8 0.3 0.12 650.0

Nearby Sampling Locations

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