Monthly Water Sampling Results for Elk Creek @ Colesburg Rd/X3C 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 Total Suspended Solids mg/L Chloride (Lab) mg/L Sulfate mg/L
10/27/15 16:30 Gary Siegwarth 8.48 11.5 52.7 60+ 0.07 2.0 160 4 14.0 18.4
09/29/15 16:00 Gary Siegwarth 8.23 18.7 65.7 13 0.23 1.4 17329 66 13.0 15.6
08/25/15 15:30 Gary Siegwarth 8.41 20.2 68.4 54 0.09 1.5 317 12.3 14.0 17.8
07/28/15 14:45 Gary Siegwarth 8.25 22.9 73.2 30 0.17 2.2 323 5 12.5 14.4
06/30/15 17:01 Gary Siegwarth 8.48 23.1 73.6 55 0.15 3.6 573 8.3 15.6 18.0
11/05/14 17:50 Aaron Schwartzhoff 8.64 <29 7.7 45.9 60+ 10 0.09 3.4 110
10/01/14 15:27 Wayne Wingert 8.34 <33 14.8 58.6 60+ 9 0.04 2.6 130
09/03/14 16:43 Gary Siegwarth 8.45 <33 24.6 76.3 49 9 0.14 3.1 200
08/06/14 16:40 Gary Siegwarth, Andrew 8.33 <29 21.9 71.4 45 11 0.13 3.3 1400
07/09/14 15:26 Wayne Wingert, Andrew 9.06 <29 20.7 69.3 60+ 10 0.07 5.8 570
06/04/14 17:18 Gary Siegwarth, Andrew 8.24 <33 21.4 70.5 60+ 9 0.11 2.5 180
05/07/14 13:45 330
05/07/14 13:45 Gary Siegwarth 8.5 <33 13.2 55.8 60+ 9 0.07 3.9 350
04/02/14 16:50 Gary Siegwarth 8.28 <33 6.5 43.7 34 9 0.16 4.4 75
11/06/13 18:30 Gary Siegwarth <30 9.6 49.3 60+ 11 0.08 3.2 2400 <0.05
10/16/13 15:00 Wayne Wingert <30 13.0 55.4 60+ 9 0.03 3.0 120 <0.05
09/04/13 16:30 Amelia Schaller <30 17.8 64.0 60+ 11 0.06 3.0 760 <0.05
08/07/13 16:40 Gary Siegwarth, Maury 8.4 <30 24.1 75.4 60+ 9 0.07 4.0 4600 <0.05
07/10/13 14:25 Gary Siegwarth 8.0 <30 22.0 71.6 5 9 0.5 4.2 24000 0.16
06/05/13 15:40 Amelia Schaller 8.2 <30 14.0 57.2 13.4 9 0.22 6.1 1300 0.08
05/01/13 19:40 Gary Siegwarth 8.6 <30 20.5 68.9 53 0.07 4.3 1900 <0.05
04/10/13 15:45 Gary Siegwarth 8.1 <30 5.4 41.7 4 11 1.1 4.0 24000 0.35
11/07/12 19:00 8.6 <33 7.9 46.2 60+ 12 0.03 2.9 41 <0.05
10/03/12 17:00 8.5 <33 18.2 64.8 60+ 12 0.03 2.4 110 <0.05
09/05/12 14:52 8.0 <33 22.0 71.6 5 7 0.47 1.8 24000+ 0.08
08/01/12 11:54 8.1 <33 21.8 71.2 60+ 6 0.07 1.7 41 <0.05
07/02/12 15:14 8.3 <33 27.7 81.9 60+ 11 0.08 2.5 98 <0.05
06/06/12 13:06 8.2 <33 18.8 65.8 51 11 0.08 3.5 210 <0.05
05/02/12 15:58 8.3 <33 15.7 60.3 4 11 24000+
04/04/12 16:30 8.4 <33 13.7 56.7 42 11 0.08 4.1 120 <0.05
11/02/11 17:30 8.4 <33 9.8 49.6 60+ 9 0.04 4.1 98 <0.05
10/05/11 16:50 8.7 <33 16.6 61.9 60+ 12 0.05 3.9 290 <0.05
09/07/11 14:50 8.4 <33 16.9 62.4 30.2 11 0.14 4.4 1600 <0.05
08/03/11 15:50 8.4 <33 24.5 76.1 54 10 0.11 5.4 590 0.06
07/06/11 16:38 8.6 <33 25.9 78.6 60+ 12 0.07 3.9 200 <0.05
06/01/11 16:40 8.6 <33 20.2 68.4 60+ 10 0.08 4.4 160 <0.05
05/04/11 16:34 8.4 <33 12.2 54.0 60+ 10 0.05 5.1 10 <0.05
05/04/11 16:34 8.4 <33 12.2 54.0 60+ 10 0.05 5.1 10 <0.05
  • 10/27/2015: Low flow, drought conditions.
  • 08/25/2015: Slightly green, adjacent pool pea green
  • 11/06/2013: pH meter not working
  • 10/03/2012: Good evidence of silt load & fine silt deposits at this site as well. Need to clearly explain the negative effects to the likes of Chuck Grassley.

Yearly Averages for Elk Creek @ Colesburg Rd/X3C (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 Total Suspended Solids mg/L Chloride (Lab) mg/L Sulfate mg/L
All Years 8.4 (8.3) <33 (<33) 17.4 (15.6) 63.3 (60.1) 53 (53) 10.0 (8.6) 0.14 (0.19) 3.5 (6.5) 492 (368) 0.06 (0.09) 19 (19) 13.82 (22.01) 16.84 (22.15)
2015 Mean 8.4 (8.3) (<33) 19.3 (17.3) 66.7 (63.1) 45 (53) (7.2) 0.14 (0.23) 2.1 (6.1) 695 (442) 19 (20) 13.82 (22.17) 16.84 (23.58)
2014 Mean 8.5 (8.2) <33 (<33) 16.4 (14.6) 61.4 (58.3) 60+ (57) 9.5 (8.4) 0.1 (0.18) 3.6 (7.3) 239 (196)
2013 Mean 8.3 (8.2) <33 (<33) 15.8 (13.6) 60.4 (56.5) 45 (46) 9.9 (8.8) 0.27 (0.27) 4.0 (7.6) 2480 (960) 0.1 (0.13)
2012 Mean 8.3 (8.3) <33 (<33) 18.2 (17.4) 64.8 (63.3) 49 (51) 10.1 (8.8) 0.12 (0.17) 2.7 (4.8) 374 (374) <0.05 (0.07) (16)
2011 Mean 8.5 (8.3) <33 (<33) 18.0 (15.9) 64.4 (60.7) 60+ (58) 10.6 (9.0) 0.08 (0.1) 4.5 (6.4) 189 (237) <0.05 (0.06)

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 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 52.8% 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 Elk Creek @ Colesburg Rd/X3C (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 Total Suspended Solids mg/L Chloride (Lab) mg/L Sulfate mg/L
05/30/13 21:10 Gary & Marcus Siegwarth 7.9 <33 18.6 65.5 5.2 9 0.58 6.3 0.24
03/11/13 20:45 Gary Siegwarth 8.4 <33 2.2 36.0 11 0.67 1.2 3900 0.71

Site Information

NameElk Creek @ Colesburg Rd/X3C
CodeELK-10
CountyClayton
Latitude42.7333
Longitude-91.2801
UTM_X640793.0
UTM_Y4732634.0
HUC_87060004
Sampled byIowa DNR Fisheries ~ Big Spring Hatchery

Sampling Location

Nearby Sampling Locations