Big Spring @ Big Spring Hatchery [BIG-10]

NameBig Spring @ Big Spring Hatchery
CodeBIG-10
CountyClayton
Latitude42.9096
Longitude-91.4699
HUC_87060004
Sampled byIowa DNR Fisheries ~ Big Spring Hatchery

Sampling Location

Yearly Averages for Big Spring @ Big Spring Hatchery [BIG-10] Download in CSV format
(with comparison to all locations in the watershed)

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 7.3 (8.3) <33 (<33) 11.8 (15.6) 53.2 (60.0) 60+ (52) 8.4 (8.6) 0.21 (0.21) 10.6 (6.7) 104 (372) <0.05 (0.09) 3 (29) 25.94 (27.87) 25.5 (22.17)
2015 Mean 7.4 (8.3) (<33) 13.2 (17.3) 55.8 (63.1) 60+ (53) (7.2) 0.28 (0.23) 10.4 (6.1) 66 (442) 3 (20) 25.94 (22.17) 25.5 (23.58)
2014 Mean 7.3 (8.2) <33 (<33) 11.2 (14.6) 52.2 (58.3) 60+ (57) 8.5 (8.4) 0.17 (0.18) 10.7 (7.3) 88 (196)
2013 Mean 7.5 (8.2) <33 (<33) 10.4 (13.6) 50.7 (56.5) 41 (46) 8.0 (8.8) 0.2 (0.27) 11.0 (7.6) 3900 (960) <0.05 (0.13)

*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 50.0% 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 28.6% 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).

Download in CSV format

Monthly Water Sampling Data for Big Spring @ Big Spring Hatchery [BIG-10]

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 15:30 Gary Siegwarth 7.36 11.2 52.2 60+ 0.27 8.8 10 1 36.9 33.5
09/29/15 19:00 Brad Crawford 13.5 56.3 60+ 0.47 6.4 63 2.5 17.5 18.9
08/25/15 13:30 Gary Siegwarth 7.38 13.1 55.6 60+ 0.25 9.9 109 2.3 28.6 29.1
07/28/15 13:30 Gary Siegwarth 7.46 14.5 58.1 60+ 0.22 10.2 161 1.5 23.4 24.7
06/30/15 14:54 Gary Siegwarth 7.23 13.9 57.0 60+ 0.17 16.6 110 7.3 23.3 21.3
11/05/14 16:15 Aaron Schwartzhoff 7.62 <29 9.6 49.3 60+ 8 0.06 9.8 280
10/01/14 14:01 Wayne Wingert 7.48 <33 12.0 53.6 60+ 9 0.2 10.0 41
09/03/14 15:03 Gary Siegwarth 7.29 <33 14.3 57.7 60+ 9 0.22 9.6 430
08/06/14 14:26 Gary Siegwarth, Andrew 7.41 <29 14.7 58.5 60+ 8 0.19 11.0 130
07/09/14 13:41 Wayne Wingert, Andrew 7.3 <29 11.9 53.4 60+ 8 0.11 13.0 860
06/04/14 18:05 Brad Crawford 7.12 <29 10.7 51.3 60+ 8 0.13 11.0 85
05/07/14 12:15 Gary Siegwarth 7.2 <33 9.1 48.4 60+ 9 0.12 14.0 <10
04/02/14 13:50 Gary Siegwarth 6.9 <33 7.4 45.3 42.2 9 0.33 7.1 10
08/07/13 14:30 Gary Siegwarth, Maury 7.5 <30 12.9 55.2 35 7 0.2 11.0 3900 <0.05
04/10/13 14:05 Gary Siegwarth 7.4 <30 7.9 46.2 47 9
  • 08/25/2015: Low flow, dry conditions
  • 09/03/2014: Sample by SHL at 7 AM the same morning. Would be a good comparative sample of parameters
  • 04/02/2014: Cleared significantly from 3 days prior. We have water sample data to show this change.
  • 04/10/2013: There is a delay with rainfall spring discharge

One-time Rainfall Event Samples for Big Spring @ Big Spring Hatchery (Not part of above statistics)

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
03/11/13 18:07 Gary Siegwarth 8.3 <33 4.3 39.7 4 1.1 2.0 2300 0.7

Nearby Sampling Locations

← Upstream

    Downstream →