Dry Branch @ 110th St. [DBR-30]

NameDry Branch @ 110th St.
CodeDBR-30
CountyWinneshiek
Latitude43.0965
Longitude-91.803
HUC_87060004
Photo Galleryhttps://photos.app.goo.gl/fC6TCUf1ognwwdEY8
Sampled byWinneshiek County Soil and Water Conservation District

Sampling Location

Yearly Averages for Dry Branch @ 110th St. [DBR-30] Download in CSV format
(with comparison to all locations in the watershed)

pH

Chloride mg/L Celsius C Fahrenheit F Transparency cm Turbidity ntu DO mg/L P mg/L Nitrite - IOWATER mg/L Nitrate - IOWATER mg/L Phosphate - IOWATER mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Total Suspended Solids mg/L Chloride (Lab) mg/L Sulfate mg/L Ammonia (Field)

All Years 8.2 (8.3) <33 (<33) 16.9 (15.6) 62.5 (60.0) 55 (52) 31.7 (22.1) 8.2 (8.6) 0.23 (0.21) 0.06 (0.00394736842105263) 8.0 (4.69736842105263) 0.475 (0.316176470588235) 7.7 (6.7) 720 (372) 0.15 (0.09) 14 (29) 22.17 (27.87) 16.82 (22.17) 0.0833333333333333 (0.0833333333333334)
2018 Mean 0.15 (0.24) 9.9 (8.8) 402 (269) 12 (16) 21.67 (34.33) 16.03 (21.18)
2017 Mean (8.3) (13.2) (55.8) (35) 0.13 (0.51) 11.0 (8.8) 220 (298) 11 (79) 16.25 (34.35) 12.75 (19.7)
2015 Mean 8.1 (8.3) <33 (<33) 18.5 (17.3) 65.3 (63.1) 55 (53) 31.7 (22.1) 6.5 (7.2) 0.25 (0.23) 0.06 (0.0075) 8.0 (6.75) 0.475 (0.465625) 6.6 (6.1) 271 (442) 17 (20) 25.14 (22.17) 19.4 (23.58) 0.0333333333333333 (0.0625)
2014 Mean 8.1 (8.2) <33 (<33) 16.0 (14.6) 60.8 (58.3) 60+ (57) 8.3 (8.4) 0.18 (0.18) 7.9 (7.3) 183 (196) 0.133333333333333 (0.104166666666667)
2013 Mean 8.1 (8.2) <33 (<33) 14.9 (13.6) 58.8 (56.5) 42 (46) 8.0 (8.8) 0.42 (0.27) (0.0) (2.9375) (0.14375) 8.3 (7.6) 6690 (960) 0.25 (0.13)
2012 Mean 8.5 (8.3) <33 (<33) 19.1 (17.4) 66.3 (63.3) 60+ (51) 8.5 (8.8) 0.21 (0.17) (0.0) (2.0) (0.20625) 4.4 (4.8) 1739 (374) 0.12 (0.07) (16)
2011 Mean 8.3 (8.3) <33 (<33) 16.7 (15.9) 62.1 (60.7) 49 (58) 9.2 (9.0) 0.15 (0.1) (0.0) (2.0) (0.25) 8.7 (6.4) 455 (237) 0.06 (0.06)

*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 22.7% 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 72.7% 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 Dry Branch @ 110th St. [DBR-30]

Sample Date Time by pH

Chloride mg/L Celsius C Fahrenheit F Transparency cm Turbidity ntu DO mg/L P mg/L Nitrite - IOWATER mg/L Nitrate - IOWATER mg/L Phosphate - IOWATER mg/L N mg/L E. Coli MPN/100mL Ammonia mg/L Total Suspended Solids mg/L Chloride (Lab) mg/L Sulfate mg/L Ammonia (Field)

09/18/18 00:00 Eric Palas 0.16 7.5 697 18.4 19.6 15.3
08/14/18 00:00 Eric Palas 0.18 7.9 345 6.8 22.3 17.6
07/11/18 00:00 Eric Palas 0.15 10.6 4884 21.5 21.1 15.5
06/12/18 00:00 Eric Palas 0.18 14.8 1153 16.5 20.7 13.7
05/08/18 00:00 Eric Palas 0.14 11.3 156 4 24.7 16.4
04/10/18 00:00 Eric Palas 0.1 7.0 20 4.4 21.6 17.7
05/30/17 00:00 0.12 10.0 282 12.4 11.7 11.3
04/25/17 00:00 0.13 12.0 171 9.2 20.8 14.2
10/27/15 16:45 Michelle Elliot 8.05 <31 10.0 50.0 60+ 10.2 7.09 0.1 0.0 5.0 0.3 4.0 41 2.5 24.6 22.1 0.1
09/29/15 20:40 Michelle Elliot 7.97 <31 19.3 66.7 60+ 81.9 5.08 0.44 0.0 5.0 4.8 1947 50.3 22.2 19.0 0.0
08/25/15 19:22 Corey Meyer 8.1 <31 22.3 72.1 52 7.4 0.17 0.0 10.0 0.2 5.0 272 15.3 25.8 19.9 0.0
07/28/15 15:59 Ruth Sutton 8.2 <29 21.1 70.0 40 20.9 6.94 0.27 0.0 10.0 0.6 6.2 2359 4 24.1 17.1
06/30/15 17:01 Ruth Sutton 8.3 <29 19.8 67.6 41 13.8 6.08 0.27 0.3 10.0 0.8 13.0 24+ 10.8 29.0 18.9
11/05/14 17:50 Michelle Elliot 8.06 <30 7.3 45.1 60+ 10 0.15 9.4 85
10/01/14 15:10 Michelle Elliot 7.96 <30 13.3 55.9 60+ 7 0.09 7.2 110
09/03/14 17:05 Michelle Elliot 8.32 <30 21.7 71.1 60+ 8 0.38 5.7 1400
08/06/14 17:01 Corey Meyer 7.8 <29 21.3 70.3 60+ 7 0.19 9.2 540
07/09/14 19:30 Michelle Elliot & KN 8.23 <29 20.7 69.3 60+ 9 0.17 3.1 1500 0.2
06/04/14 18:00 Michelle Elliot 8.25 30 19.4 66.9 60 8 0.15 8.6 1200 0.1
05/07/14 18:08 Michelle Elliot 8.44 30 15.7 60.3 60+ 11 0.1 13.0 10 0.1
04/02/14 19:00 Corey Meyer 7.8 34 8.5 47.3 47 6 0.22 7.3 10
11/06/13 19:30 Corey Meyer 8.2 <30 8.4 47.1 14 6.8 0.59 6.4 20000 0.46
10/16/13 15:47 Corey Meyer 8.1 <30 10.5 50.9 60+ 9 0.1 5.4 5500 <0.05
09/04/13 18:45 Corey Meyer 8.2 <30 24.7 76.5 60+ 8.1 0.23 6.3 530 <0.05
08/07/13 17:52 Corey Meyer 8.1 <30 20.4 68.7 29 7.7 0.37 6.7 4100 0.07
07/10/13 16:36 Corey Meyer 7.9 <30 22.0 71.6 60+ 7.3 0.22 11.0 24000+ 0.07
06/05/13 18:16 Corey Meyer 8.0 <30 12.1 53.8 3 9.1 0.69 14.0 24000+ 0.34
05/01/13 18:00 Corey Meyer <30 17.3 63.1 60+ 8 0.2 7.2 2200 0.35
04/10/13 17:50 Corey Meyer 8.2 <30 3.8 38.8 5 8 0.99 9.6 9200 0.66
11/07/12 18:14 8.5 <33 8.2 46.8 60+ 9 0.06 3.3 41 <0.05
10/03/12 16:45 8.2 <33 15.5 59.9 60+ 7 0.11 1.8 9200 <0.05
09/05/12 16:05 8.2 <33 21.3 70.3 60+ 7 0.18 0.95 3900 <0.05
08/01/12 17:15 8.6 <33 23.8 74.8 60+ 8 0.14 2.2 1300 <0.05
07/02/12 16:24 8.6 <33 28.1 82.6 60+ 9 0.2 4.4 2000 0.08
06/06/12 16:28 8.7 <33 20.6 69.1 60+ 11 0.13 9.4 6900 <0.05
05/02/12 17:15 8.4 <33 20.4 68.7 5 6 0.77 7.8 24000+ 0.63
04/04/12 16:50 8.5 <33 14.6 58.3 52 11 0.05 5.2 110 <0.05
11/02/11 16:30 8.4 11.6 52.9 44 9 0.12 6.1 820 <0.05
10/05/11 16:17 8.5 <33 17.2 63.0 49 11 0.12 6.6 260 <0.05
09/07/11 16:25 8.2 <33 16.9 62.4 53 9 0.23 7.2 460 <0.05
08/03/11 16:32 8.3 <33 25.8 78.4 52 9 0.16 8.7 720 0.08
07/07/11 02:00 0.16 9.3 3400 <0.05
06/01/11 16:30 8.1 <33 17.7 63.9 26 7 0.18 12.0 840 0.13
05/04/11 17:15 8.5 <33 11.0 51.8 60+ 10 0.07 11.0 20 <0.05
  • 09/29/2015: very muddy, no cows
  • 11/06/2013: 1.71 in of rain in last 24 hrs

Nearby Sampling Locations

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