Bear Creek @ Hamlet Rd [BEA-10]

NameBear Creek @ Hamlet Rd
CodeBEA-10
CountyClayton
Latitude42.737
Longitude-91.3245
HUC_87060004
Sampled byIowa DNR Fisheries ~ Big Spring Hatchery

Sampling Location

Yearly Averages for Bear Creek @ Hamlet Rd [BEA-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 8.3 (8.3) <33 (<33) 17.1 (15.6) 62.7 (60.0) 50 (52) 9.2 (8.6) 0.19 (0.21) 1.9 (6.7) 345 (372) 0.08 (0.09) 30 (29) 19.8 (27.87) 18.82 (22.17)
2015 Mean 8.3 (8.3) (<33) 18.7 (17.3) 65.7 (63.1) 27 (53) (7.2) 0.18 (0.23) 2.9 (6.1) 307 (442) 30 (20) 19.8 (22.17) 18.82 (23.58)
2014 Mean 8.4 (8.2) <33 (<33) 16.0 (14.6) 60.7 (58.3) 60+ (57) 9.3 (8.4) 0.09 (0.18) 1.7 (7.3) 149 (196)
2013 Mean 8.2 (8.2) <33 (<33) 15.8 (13.6) 60.4 (56.5) 42 (46) 9.3 (8.8) 0.29 (0.27) 2.0 (7.6) 739 (960) 0.1 (0.13)
2012 Mean 8.2 (8.3) <33 (<33) 17.9 (17.4) 64.3 (63.3) 44 (51) 8.8 (8.8) 0.27 (0.17) 1.0 (4.8) 445 (374) 0.06 (0.07) (16)
2011 Mean 8.4 (8.3) <33 (<33) 17.6 (15.9) 63.8 (60.7) 60+ (58) 9.4 (9.0) 0.09 (0.1) 2.4 (6.4) 304 (237) 0.07 (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).

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 41.7% 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 Bear Creek @ Hamlet Rd [BEA-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 16:15 Gary Siegwarth 8.36 11.2 52.2 52 0.08 0.9 86 3 13.7 16.2
09/29/15 15:30 Gary Siegwarth 8.22 18.0 64.4 8 0.35 9.5 24+ 103.7 46.4 33.0
08/25/15 15:00 Gary Siegwarth 8.27 19.5 67.1 30 0.12 0.7 197 16.3 13.6 15.2
07/28/15 14:30 Gary Siegwarth 8.29 23.0 73.4 19 0.18 1.4 2359 6.5 11.5 13.7
06/30/15 16:17 Gary Siegwarth 8.41 21.8 71.2 26 0.15 1.8 2359 22 13.8 16.0
11/05/14 17:25 Aaron Schwartzhoff 8.54 <29 7.8 46.0 60+ 10 0.06 1.9 86
10/01/14 15:04 Wayne Wingert 8.3 <33 15.1 59.2 60+ 9 0.06 0.6 200
09/03/14 16:38 Gary Siegwarth 8.39 <33 22.8 73.0 47 10 0.13 1.3 1000
08/06/14 15:35 Gary Siegwarth, Andrew 8.27 <29 21.7 71.1 60+ 9 0.11 1.4 200
07/09/14 15:05 Wayne Wingert, Andrew 8.48 <29 20.4 68.7 60+ 9 0.07 2.8 320
06/04/14 16:35 Gary Siegwarth, Andrew 8.09 <33 21.1 70.0 58 7 0.11 0.88 160
05/07/14 13:17 Gary Siegwarth 8.4 <33 12.9 55.2 60+ 9 0.05 1.7 140
04/02/14 16:30 Gary Siegwarth 8.4 <33 5.9 42.6 60+ 11 0.16 3.3 10
11/06/13 17:17 Gary Siegwarth <30 8.6 47.5 36 11 0.13 1.7 1100 <0.05
10/16/13 14:40 Wayne Wingert <30 13.2 55.8 60+ 9 0.11 0.91 200 <0.05
09/04/13 17:00 Amelia Schaller <30 18.3 65.0 60+ 9 0.06 0.44 41 <0.05
08/07/13 16:13 Gary Siegwarth, Maury 8.4 <30 24.0 75.2 60+ 9 0.06 1.4 260 <0.05
07/10/13 13:48 Gary Siegwarth 8.0 <30 22.4 72.3 11 7 0.35 3.5 17000 0.14
06/05/13 15:00 Amelia Schaller 8.2 <30 13.8 56.8 48 9 0.13 3.2 370 <0.05
05/01/13 18:08 Gary Siegwarth 8.4 <30 21.1 70.0 20 9 0.15 1.8 210 <0.05
04/10/13 15:30 Gary Siegwarth 8.1 <30 4.7 40.5 3.5 11 1.3 2.8 24000+ 0.44
11/07/12 18:28 8.4 <33 7.2 45.0 60+ 12 0.04 1.2 52 <0.05
10/03/12 16:00 8.2 <33 16.7 62.1 58 11 0.06 0.16 240 <0.05
09/05/12 15:12 7.9 <33 20.6 69.1 2.2 7 1.2 0.77 24000+ 0.17
08/01/12 12:14 8.0 <33 23.6 74.5 57 6 0.08 0.11 41 <0.05
07/02/12 14:20 8.0 <33 27.2 81.0 59 7 0.12 0.37 390 0.08
06/06/12 12:40 8.1 <33 18.8 65.8 51.2 9 0.06 1.0 180 <0.05
05/02/12 16:17 8.2 <33 16.0 60.8 4 9 0.57 1.6 24000+ 0.06
04/04/12 16:05 8.4 <33 13.2 55.8 46 9 0.06 2.5 52 <0.05
11/02/11 17:12 8.3 <33 10.2 50.4 60+ 9 0.05 2.3 140 <0.05
10/05/11 16:25 8.4 <33 15.4 59.7 60+ 10 0.06 2.0 220 <0.05
09/07/11 14:20 8.4 <33 15.5 59.9 27.6 9 0.14 2.6 2900 0.15
08/03/11 15:35 8.3 <33 25.4 77.7 60+ 10 0.1 2.7 810 0.11
07/06/11 16:00 8.5 <33 26.1 79.0 60+ 11 0.09 1.6 160 <0.05
06/01/11 15:59 8.5 <33 20.3 68.5 45 8 0.11 2.5 190 <0.05
05/04/11 16:09 8.4 <33 10.6 51.1 60+ 9 0.06 3.2 110 <0.05
  • 10/27/2015: An obvious impaired stream. I suspect the dairy operation just upstream of this site should be looked at. Low flow, drought conditions.
  • 08/25/2015: Holy eutrophic looking stream - obvious excess nutrient problem. Stream looked pea green. This stream has problems!
  • 09/03/2014: Green tint to water. Would be interesting to take Dissolved Oxygen at 5 AM, could be hypoxia
  • 11/06/2013: opaque color to the water. Record traffic (6 vehicles. Lots of people wanting to talk, one young Amish man trapping - taught him about a river
  • 05/01/2013: Guy on bulldozer literally pushing trees along the stream into the stream as I was sampling
  • 11/07/2012: Ther was some odd looking suspended material in the stream
  • 10/03/2012: Good evidence of excessive silt load in pool by bridge. This is unacceptable for the stream health!

One-time Rainfall Event Samples for Bear Creek @ Hamlet Rd (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
05/30/13 20:53 Gary & Marcus Siegwarth 7.9 <33 17.2 63.0 5 9 0.48 3.5 0.09
03/11/13 20:59 Gary Siegwarth 8.3 <33 2.4 36.3 14 0.52 1.3 2600 0.82

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