| Name | Dry Branch @ 110th St. |
| Code | DBR-30 |
| County | Winneshiek |
| Latitude | 43.0965 |
| Longitude | -91.803 |
| HUC_8 | 7060004 |
| Photo Gallery | https://photos.app.goo.gl/fC6TCUf1ognwwdEY8 |
| Sampled by | Winneshiek County Soil and Water Conservation District |
GREEN = Better than average water quality compared to other sites in the watershed
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.
| 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).
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).
| 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 |