Monthly Water Sampling Results for Volga River @ Littleport Rd/X21 Download in CSV format

Sample Date 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 Discharge cfs Gage Height ft Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L
10/27/15 16:00 Gary Siegwarth 8.33 10.7 51.3 60+ 0.04 2.4 41 54 3.63 1.2 12.6 20.5
09/29/15 15:01 Gary Siegwarth 8.32 17.8 64.0 55 0.07 1.9 1670 83 3.82 5.5 10.9 17.2
08/25/15 14:30 Gary Siegwarth 8.35 18.4 65.1 60+ 0.07 2.5 41 5.7 12.7 20.3
07/28/15 13:50 Gary Siegwarth 8.4 22.6 72.7 49 0.08 3.0 521 3 11.7 17.2
06/30/15 16:07 Gary Siegwarth 8.21 20.7 69.3 5 0.7 10.3 10462 434.5 14.9 14.1
11/05/14 17:07 Aaron Schwartzhoff 8.46 <29 7.4 45.3 60+ 10 0.03 3.6 20 117 4.02 0.3
10/01/14 14:41 Wayne Wingert 8.34 <33 13.7 56.7 60+ 10 0.04 2.7 160 83 3.82 0.3
09/03/14 16:03 Gary Siegwarth 8.34 <33 21.5 70.7 34 8 0.12 2.8 1200 181 4.34 0.6
08/06/14 15:23 Gary Siegwarth, Andrew 8.25 <29 20.9 69.6 60+ 9 0.06 3.8 20 136 4.16 0.4
07/09/14 14:46 Wayne Wingert, Andrew 8.49 <29 20.2 68.4 27 8 0.15 8.4 660 538 5.64 0.6
06/04/14 16:22 Gary Siegwarth, Andrew 8.0 <33 21.1 70.0 60+ 7 0.12 5.4 84 238 4.53 0.3
05/07/14 13:05 Gary Siegwarth 8.3 <33 13.2 55.8 60+ 9 0.05 8.7 110 463 0.5
04/02/14 16:14 Gary Siegwarth 8.17 <33 5.6 42.1 20 9 0.25 3.4 41 489 0.98
11/06/13 16:43 Gary Siegwarth <30 9.0 48.2 60+ 11 0.05 3.3 140 0.1 119 4.23
10/16/13 14:17 Wayne Wingert <30 12.1 53.8 60+ 9 0.02 2.8 110 <0.05 80 4.0
09/04/13 15:00 Amelia Schaller <30 20.0 68.0 60+ 9 0.05 3.0 160 <0.05 86 4.04
08/07/13 15:30 Gary Siegwarth, Maury 8.4 <30 23.1 73.6 60+ 9 0.06 3.6 350 <0.05 179 4.53
07/10/13 13:24 Gary Siegwarth 8.1 <30 22.1 71.8 27 7 0.1 6.0 990 <0.05 330
06/05/13 14:30 Amelia Schaller 8.1 <30 13.5 56.3 20.2 9 0.14 8.6 380 <0.05 871 6.61
05/01/13 17:49 Gary Siegwarth 8.1 <30 18.4 65.1 53 9 0.1 8.2 270 <0.05 460 5.47
04/10/13 15:10 Gary Siegwarth 8.1 <30 5.1 41.2 4 12 0.95 3.4 13000 0.15 1320 7.67
11/07/12 18:01 8.4 <33 7.4 45.3 60+ 12 0.02 2.0 63 <0.05 73 3.92
10/03/12 15:23 8.2 <33 13.5 56.3 60+ 11 0.03 1.7 30 <0.05 52 3.77
09/05/12 15:31 8.0 <33 18.8 65.8 1.1 12 1.6 0.82 24000 0.22 199 4.58
08/01/12 12:36 8.3 <33 21.6 70.9 37 7 0.07 2.0 160 <0.05 84
07/02/12 14:00 8.1 <33 26.6 79.9 60+ 9 0.06 2.7 200 0.05
06/06/12 12:10 8.3 <33 18.9 66.0 43 11 0.08 7.0 110 <0.05 257
05/02/12 16:35 8.3 <33 16.0 60.8 12 9 0.18 5.9 8200 <0.05 551
04/04/12 15:28 8.3 <33 13.1 55.6 55 7 0.03 5.0 52 <0.05 323
04/04/12 15:09 8.2 <33 13.3 55.9 55 7 0.03 5.0 31 <0.05 320
11/02/11 16:50 8.3 <33 9.7 49.5 60+ 9 <0.02 3.3 110 <0.05 115
10/05/11 16:10 8.5 <33 14.3 57.7 60+ 10 0.04 3.7 130 <0.05 140
10/05/11 15:48 8.5 <33 14.3 57.7 60+ 10 0.04 3.7 74 <0.05 140
09/07/11 13:40 8.4 <33 15.8 60.4 22 9 0.16 6.2 930 <0.05 417
08/03/11 15:10 8.4 <33 24.8 76.6 22.5 8 0.14 6.0 750 <0.05 345
07/06/11 15:36 8.3 <33 24.9 76.8 60+ 9 0.06 4.5 98 <0.05 170
06/01/11 15:35 8.5 <33 20.2 68.4 36 8 0.11 8.0 140 <0.05 399
05/04/11 15:35 8.1 <33 10.3 50.5 48 10 0.08 7.3 98 <0.05 554
  • 10/27/2015: Low flow, drought conditions.
  • 08/25/2015: Very low flow, dry conditions
  • 06/30/2015: up from previous night's rain
  • 11/06/2013: lots of floating & submersed leaves in the drift!, pH Meter jumping around

Yearly Averages for Volga River @ Littleport Rd/X21 (with comparison to all sites in the watershed) Download in CSV format

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 Discharge cfs Gage Height ft Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L
All Years 8.3 (8.3) <33 (<33) 16.5 (15.6) 61.7 (60.1) 50 (53) 9.2 (8.6) 0.16 (0.19) 4.6 (6.5) 245 (368) 0.06 (0.09) 297 (648) 4.6 (5.4) 90 (19) 0.4975 (0.622) 12.56 (22.01) 17.86 (22.15)
2015 Mean 8.3 (8.3) (<33) 18.0 (17.3) 64.5 (63.1) 51 (53) (7.2) 0.19 (0.23) 4.0 (6.1) 433 (442) 69 (396) 3.7 (4.5) 90 (20) 12.56 (22.17) 17.86 (23.58)
2014 Mean 8.3 (8.2) <33 (<33) 15.5 (14.6) 59.8 (58.3) 55 (57) 8.8 (8.4) 0.1 (0.18) 4.9 (7.3) 108 (196) 281 (761) 4.4 (5.4) 0.4975 (0.622)
2013 Mean 8.2 (8.2) <33 (<33) 15.4 (13.6) 59.8 (56.5) 49 (46) 9.4 (8.8) 0.18 (0.27) 4.9 (7.6) 429 (960) 0.06 (0.13) 431 (965) 5.2 (6.1)
2012 Mean 8.2 (8.3) <33 (<33) 17.0 (17.4) 62.6 (63.3) 46 (51) 9.8 (8.8) 0.26 (0.17) 3.4 (4.8) 283 (374) 0.06 (0.07) 219 (361) 4.1 (4.6) (16)
2011 Mean 8.4 (8.3) <33 (<33) 17.1 (15.9) 62.8 (60.7) 49 (58) 9.0 (9.0) 0.09 (0.1) 5.6 (6.4) 186 (237) <0.05 (0.06) 306 (554)

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 2.8% 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 38.9% 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).

One-time Rainfall Event Samples for Volga River @ Littleport Rd/X21 (Not part of above statistics)

Sample Date 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 Discharge cfs Gage Height ft Total Suspended Solids mg/L Total Kjeldahl Nitrogen as N mg/L Chloride (Lab) mg/L Sulfate mg/L
05/30/13 20:20 Gary & Marcus Siegwarth 7.8 <33 18.4 65.1 2 11 1.9 5.2 0.11 5220 13.65
03/11/13 21:06 Gary Siegwarth 8.7 <33 0.9 33.6 4 1.1 0.52 910 0.58 3820 11.79

Site Information

NameVolga River @ Littleport Rd/X21
CodeVR-20
CountyClayton
Latitude42.7539
Longitude-91.3691
UTM_X633466.0
UTM_Y4734775.0
NotesUSGS Station
HUC_87060004
USGS Gagewaterdata.usgs.gov/usa/nwis/uv?site_no=05412400
Sampled byIowa DNR Fisheries ~ Big Spring Hatchery

Sampling Location

Nearby Sampling Locations