Monthly Water Sampling Results for Grannis Creek @ Fox Road 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 12:10 Pat Schaefers 8.57 7.5 45.5 60+ 8 0.06 2.8 <10 1.3 9.8 17.9
09/29/15 12:10 Pat Schaefers 8.36 13.6 56.5 60+ 6 0.09 2.6 389 4 8.6 15.8
08/25/15 12:10 Pat Schaefers 8.53 <33 11.6 52.9 60+ 6 0.07 3.3 31 2.3 9.5 17.4
07/28/15 11:30 Pat Schaefers 8.25 <32 14.1 57.4 60+ 7 0.06 3.3 <10 1 9.7 15.5
06/30/15 12:30 Pat Schaefers 8.5 <29 13.2 55.8 60+ 8 0.09 6.1 691 5.3 12.1 12.8
11/05/14 13:00 Pat Schaefers 8.63 <29 12.0 53.6 60+ 10 0.08 3.0 <10
10/01/14 12:30 Pat Schaefers 8.29 <29 11.3 52.3 60+ 8 0.04 3.4 52
09/03/14 12:30 Pat Schaefers 8.21 <29 12.1 53.8 60+ 8 0.12 3.5 280
08/06/14 12:30 Pat Schaefers 8.3 <29 12.6 54.7 60+ 10 0.05 3.6 2200
07/09/14 13:30 Pat Schaefers 8.14 <29 12.4 54.3 60+ 8 0.06 5.8 260
06/04/14 12:10 Pat Schaefers 8.05 <29 12.2 54.0 60+ 8 0.05 3.7 1800
05/07/14 12:15 Pat Schaefers 8.38 <29 9.4 48.9 60+ 10 0.05 4.8 1900
04/02/14 12:10 Pat Schaefers 8.46 <29 4.2 39.6 60+ 8 0.1 3.6 <10
11/06/13 13:30 Pat Schaefers 8.5 <30 7.3 45.1 60+ 10 0.07 2.8 110 <0.05
10/16/13 13:45 Brad Crawford 7.59 <30 9.4 49.0 60+ 9 0.04 3.2 31 <0.05
09/04/13 12:20 Pat Schaefers 8.43 <30 11.6 52.9 60+ 8 0.04 3.4 180 <0.05
08/07/13 13:20 Pat Schaefers 8.34 <30 13.5 56.3 60+ 10 0.05 4.0 400 <0.05
07/10/13 12:30 Pat Schaefers 8.26 <30 12.6 54.7 60+ 9 0.04 5.2 180 <0.05
06/05/13 14:00 Eric Palas 8.3 <30 10.1 50.2 60 9 0.07 5.7 63 <0.05
05/01/13 12:40 Pat Schaefers 8.34 <30 9.6 49.3 60+ 10 0.03 5.2 10 <0.05
04/10/13 12:45 Pat Schaefers 8.5 <30 4.0 39.2 5 8 0.73 5.3 11000 0.17
04/10/13 12:45 Pat Schaefers 8.51 <30 4.1 39.4 5 8 0.75 5.3 10000 0.16
11/07/12 13:30 8.52 <33 6.7 44.1 60+ 8 0.04 2.4 20 <0.05
10/03/12 13:00 8.5 0.6 9.5 49.1 52 8 0.05 2.4 110 <0.05
09/05/12 12:35 8.5 <33 17.2 63.0 60+ 6 0.12 2.7 900 <0.05
08/01/12 12:20 8.16 <33 15.3 59.5 31 6 0.1 2.4 230 <0.05
07/02/12 12:30 8.3 <33 17.1 62.8 60+ 7 0.26 3.4 220 0.06
06/06/12 13:20 8.6 <33 11.4 52.5 60+ 10 0.06 4.7 270 <0.05
06/06/12 13:20 8.6 <33 11.4 52.5 60+ 10 0.06 4.7 260 <0.05
05/02/12 14:40 7.99 <33 13.6 56.5 4 10 0.97 4.4 24000+ 0.15
04/04/12 12:45 8.41 <33 8.9 48.0 60+ 8 <0.02 3.4 41 <0.05
11/02/11 12:40 8.4 0.8 10.1 50.2 60+ 10 0.04 3.4 52 <0.05
10/05/11 12:45 8.39 <33 9.9 49.8 60+ 8 0.06 3.7 41 <0.05
09/07/11 15:00 8.19 <33 12.2 54.0 60+ 10 0.07 4.2 490 <0.05
08/03/11 12:35 8.42 <33 14.1 57.4 60+ 8 0.07 4.5 300 <0.05
07/06/11 12:40 6.8 <33 12.7 54.9 60+ 10 0.04 4.0 150 <0.05
06/01/11 12:30 9.53 <33 10.4 50.7 60+ 10 0.04 4.2 150 <0.05
05/04/11 13:00 8.4 <33 5.6 42.1 60+ 10 0.04 4.6 10 <0.05
  • 09/29/2015: just rained 2"
  • 08/01/2012: very little water in stream

Yearly Averages for Grannis Creek @ Fox Road (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 8.3 (8.3) <33 (<33) 11.1 (15.6) 52.0 (60.1) 60+ (53) 8.5 (8.6) 0.11 (0.19) 3.9 (6.5) 145 (368) 0.05 (0.09) 3 (19) 9.94 (22.01) 15.88 (22.15)
2015 Mean 8.4 (8.3) <33 (<33) 12.0 (17.3) 53.6 (63.1) 60+ (53) 7.0 (7.2) 0.07 (0.23) 3.6 (6.1) 56 (442) 3 (20) 9.94 (22.17) 15.88 (23.58)
2014 Mean 8.3 (8.2) <33 (<33) 10.8 (14.6) 51.4 (58.3) 60+ (57) 8.8 (8.4) 0.07 (0.18) 3.9 (7.3) 192 (196)
2013 Mean 8.3 (8.2) <33 (<33) 9.8 (13.6) 49.6 (56.5) 60+ (46) 9.1 (8.8) 0.14 (0.27) 4.4 (7.6) 152 (960) 0.06 (0.13)
2012 Mean 8.4 (8.3) <33 (<33) 12.5 (17.4) 54.4 (63.3) 56 (51) 7.9 (8.8) 0.2 (0.17) 3.2 (4.8) 273 (374) 0.06 (0.07) (16)
2011 Mean 8.3 (8.3) <33 (<33) 10.7 (15.9) 51.3 (60.7) 60+ (58) 9.4 (9.0) 0.05 (0.1) 4.1 (6.4) 95 (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 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 Grannis Creek @ Fox Road (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
03/11/13 19:42 Eric Palas/Pat Schaefers <33 4.0 39.2 23 0.43 1.3 2300 0.54

Site Information

NameGrannis Creek @ Fox Road
CodeGRA-10
CountyFayette
Latitude42.8338
Longitude-91.7088
UTM_X605529.0
UTM_Y4743164.0
HUC_87060004
Sampled byClayton County Soil and Water Conservation District

Sampling Location

Nearby Sampling Locations

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