| Name | Volga River, North Branch @ Highway 93 |
| Code | VRN-10 |
| County | Fayette |
| Latitude | 42.847 |
| Longitude | -91.9174 |
| HUC_8 | 7060004 |
| Sampled by | Fayette 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 | DO mg/L | P mg/L | N mg/L | E. Coli MPN/100mL | Ammonia mg/L | Total Suspended Solids mg/L | Chloride (Lab) mg/L | Sulfate mg/L | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All Years | 8.1 (8.3) | <33 (<33) | 14.3 (15.6) | 57.8 (60.0) | 60+ (52) | 7.9 (8.6) | 0.11 (0.21) | 8.0 (6.7) | 562 (372) | 0.06 (0.09) | 14 (29) | 20.7 (27.87) | 31.4 (22.17) |
| 2015 Mean | 7.7 (8.3) | <33 (<33) | 16.0 (17.3) | 60.7 (63.1) | 54 (53) | 7.6 (7.2) | 0.11 (0.23) | 8.1 (6.1) | 530 (442) | 14 (20) | 20.7 (22.17) | 31.4 (23.58) | |
| 2014 Mean | 8.1 (8.2) | <33 (<33) | 13.1 (14.6) | 55.6 (58.3) | 60+ (57) | 7.4 (8.4) | 0.09 (0.18) | 8.4 (7.3) | 345 (196) | ||||
| 2013 Mean | 8.1 (8.2) | <33 (<33) | 12.0 (13.6) | 53.6 (56.5) | 60+ (46) | 8.8 (8.8) | 0.17 (0.27) | 9.3 (7.6) | 964 (960) | 0.09 (0.13) | |||
| 2012 Mean | 8.1 (8.3) | <33 (<33) | 16.0 (17.4) | 60.7 (63.3) | 55 (51) | 7.8 (8.8) | 0.11 (0.17) | 6.2 (4.8) | 723 (374) | 0.06 (0.07) | (16) | ||
| 2011 Mean | 8.0 (8.3) | <33 (<33) | 14.9 (15.9) | 58.9 (60.7) | 60+ (58) | 7.7 (9.0) | 0.07 (0.1) | 8.3 (6.4) | 416 (237) | <0.05 (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 30.6% 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 80.6% 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).
| Sample Date | Time | by | pH |
Chloride mg/L | Celsius C | Fahrenheit F | Transparency cm | DO mg/L | P mg/L | N mg/L | E. Coli MPN/100mL | Ammonia mg/L | Total Suspended Solids mg/L | Chloride (Lab) mg/L | Sulfate mg/L |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10/27/15 | 14:00 | Adam Grim | 37 | 9.2 | 48.6 | 60+ | 8 | 0.08 | 3.1 | 52 | 4 | 32.9 | 37.3 | ||
| 09/29/15 | 14:20 | Adam Grim | <32 | 16.2 | 61.2 | 35 | 8 | 0.13 | 4.0 | 3873 | 10.5 | 15.5 | 35.7 | ||
| 08/25/15 | 14:20 | Adam Grim | <32 | 15.3 | 59.5 | 60+ | 6 | 0.08 | 4.8 | 135 | 6.3 | 16.6 | 34.6 | ||
| 07/28/15 | 14:12 | Adam Grim | <32 | 21.0 | 69.8 | 60+ | 8 | 0.09 | 5.1 | 776 | 2.3 | 16.0 | 33.0 | ||
| 06/30/15 | 14:35 | Adam Grim | 7.7 | <29 | 18.1 | 64.6 | 21 | 8 | 0.17 | 23.3 | 1989 | 46.7 | 22.5 | 16.4 | |
| 11/05/14 | 15:20 | Adam Grim | 7.9 | <30 | 6.6 | 43.9 | 60+ | 7 | 0.06 | 6.1 | 86 | ||||
| 10/01/14 | 15:00 | Adam Grim | 7.8 | <29 | 12.2 | 54.0 | 60+ | 8 | 0.05 | 5.5 | 240 | ||||
| 10/01/14 | 15:00 | Adam Grim | 7.8 | <29 | 12.2 | 54.0 | 60+ | 8 | 0.06 | 5.4 | 340 | ||||
| 09/03/14 | 14:00 | Adam Grim | 8.1 | <29 | 17.9 | 64.2 | 60+ | 8 | 0.11 | 4.1 | 280 | ||||
| 08/06/14 | 13:15 | Dan Bahe | 8.01 | <29 | 19.0 | 66.2 | 60+ | 6 | 0.08 | 6.5 | 410 | ||||
| 07/09/14 | 14:41 | Adam Grim, Dan Bahe | 8.0 | <29 | 18.0 | 64.4 | 60+ | 7 | 0.08 | 16.0 | 860 | ||||
| 06/04/14 | 14:00 | Adam Grim, Dan Bahe | 7.9 | <29 | 17.0 | 62.6 | 60+ | 7 | 0.13 | 10.0 | 550 | ||||
| 05/07/14 | 14:10 | Adam Grim | 8.1 | <30 | 10.8 | 51.4 | 60+ | 9 | 0.05 | 15.0 | 420 | ||||
| 04/02/14 | 14:40 | Adam Grim, Bill Bennett | 8.9 | <29 | 3.4 | 38.1 | 54 | 7 | 0.18 | 4.0 | 300 | ||||
| 11/06/13 | 15:20 | Bill Bennett & Josh Dansdill | 7.8 | 48 | 6.83 | 44.3 | 60+ | 8 | 0.09 | 4.1 | 440 | 0.14 | |||
| 10/16/13 | 14:40 | Carrie Davis | 8.2 | <32 | 10.2 | 50.4 | 60+ | 8 | 0.05 | 4.0 | 260 | <0.05 | |||
| 09/04/13 | 13:57 | Carrie Davis | 8.4 | <30 | 17.3 | 63.1 | 60+ | 8 | 0.07 | 4.9 | 1000 | <0.05 | |||
| 08/07/13 | 13:50 | Carrie Davis | 8.0 | <30 | 21.4 | 70.5 | 60+ | 8 | 0.09 | 5.1 | 1100 | 0.08 | |||
| 07/10/13 | 14:12 | Eric Boehm, LaVonne | 8.0 | 30 | 60+ | 8 | 0.07 | 11.0 | 2200 | <0.05 | |||||
| 06/05/13 | 14:00 | Carrie Davis | 8.0 | 30 | 12.5 | 54.5 | 60+ | 8 | 0.11 | 18.0 | 670 | 0.08 | |||
| 05/01/13 | 14:00 | Carrie Davis | 8.2 | <30 | 12.9 | 55.2 | 60+ | 10 | 0.06 | 15.0 | 1300 | <0.05 | |||
| 04/10/13 | 13:47 | Carrie Davis | 8.3 | <30 | 3.0 | 37.4 | 4 | 12 | 0.81 | 12.0 | 3100 | 0.25 | |||
| 11/07/12 | 14:32 | 8.5 | <33 | 5.9 | 42.6 | 60+ | 10 | 0.04 | 2.9 | 180 | <0.05 | ||||
| 10/03/12 | 13:55 | 8.1 | <33 | 13.4 | 56.1 | 46 | 6 | 0.08 | 2.7 | 520 | <0.05 | ||||
| 09/05/12 | 13:37 | 8.0 | <33 | 20.1 | 68.2 | 27 | 6 | 0.24 | 2.0 | 11000 | 0.1 | ||||
| 08/01/12 | 13:50 | 7.9 | <33 | 22.2 | 72.0 | 60+ | 6 | 0.13 | 2.7 | 500 | 0.06 | ||||
| 07/02/12 | 15:12 | 8.1 | <33 | 24.5 | 76.1 | 60+ | 8 | 0.1 | 4.5 | 1800 | 0.1 | ||||
| 06/06/12 | 14:00 | 8.0 | <33 | 16.5 | 61.7 | 49 | 10 | 0.1 | 14.0 | 1600 | <0.05 | ||||
| 05/02/12 | 14:21 | 8.0 | <33 | 14.4 | 57.9 | 30 | 8 | 0.17 | 12.0 | 670 | 0.07 | ||||
| 04/04/12 | 13:40 | 8.4 | <33 | 10.6 | 51.1 | 60+ | 8 | 0.02 | 8.8 | 75 | <0.05 | ||||
| 11/02/11 | 13:45 | 8.0 | <33 | 9.3 | 48.7 | 60+ | 6 | 0.05 | 3.7 | 200 | <0.05 | ||||
| 10/05/11 | 14:22 | 8.0 | <33 | 13.2 | 55.8 | 60+ | 8 | 0.06 | 5.2 | 390 | <0.05 | ||||
| 09/07/11 | 13:55 | 7.8 | <33 | 16.0 | 60.8 | 60+ | 10 | 0.08 | 7.5 | 1300 | <0.05 | ||||
| 08/03/11 | 13:07 | 8.2 | <33 | 23.3 | 73.9 | 60+ | 6 | 0.1 | 7.2 | 3400 | <0.05 | ||||
| 08/03/11 | 13:07 | 8.1 | <33 | 23.0 | 73.4 | 60+ | 6 | 0.1 | 7.3 | 1100 | 0.05 | ||||
| 07/06/11 | 13:35 | 8.3 | <33 | 20.0 | 68.0 | 56 | 6 | 0.08 | 7.3 | 760 | <0.05 | ||||
| 06/01/11 | 13:40 | 7.9 | <33 | 15.1 | 59.2 | 45 | 10 | 0.08 | 15.0 | 620 | <0.05 | ||||
| 05/04/11 | 13:53 | 8.1 | <33 | 7.9 | 46.2 | 60+ | 8 | 0.06 | 12.0 | 41 | <0.05 |