Thomas Roberts Pond [14-TRP-10]

NameThomas Roberts Pond
Code14-TRP-10
CountyWinneshiek
Latitude43.3074
Longitude-91.7863
Sampled byCity of Decorah Water Department

Sampling Location

Yearly Averages for Thomas Roberts Pond [14-TRP-10] Download in CSV format
(with comparison to all locations in the watershed)

P mg/L N mg/L Ammonia mg/L Atrazine ppb Fecal Coliform /100mL
All Years 0.19 (0.14) <0.1 (5.7) <0.05 (0.07) 0.18 (0.14) <10 (13321)
2002 Mean 0.19 (0.21) <0.1 (5.9) <0.05 (0.15) 0.18 (0.09) <10 (11159)
2001 Mean (0.14) (12.6) (0.1) (0.54) (10137)
2000 Mean (0.41) (4.8) (0.12) (0.21) (18412)

*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.

Download in CSV format

Monthly Water Sampling Data for Thomas Roberts Pond [14-TRP-10]

Sample Date Time by P mg/L N mg/L Ammonia mg/L Atrazine ppb Fecal Coliform /100mL
05/02/02 14:05 0.19 <0.1 <0.05 0.18 <10.0

One-time Rainfall Event Samples for Thomas Roberts Pond (Not part of above statistics)

Sample Date Time by P mg/L N mg/L Ammonia mg/L Atrazine ppb Fecal Coliform /100mL
07/29/02 19:00 0.07 0.2 <0.05 <0.05 1500.0
06/04/02 21:05 0.11 0.4 0.29 0.55 1500.0
06/15/01 14:30 <0.1 <0.1 <0.1 0.95 410.0
04/03/01 16:00 <0.1 0.3 <0.1 <0.05 <10.0
08/17/00 14:25 0.2 0.3 0.2 0.06 8000.0
07/05/00 14:15 0.2 0.4 0.7 0.18 64.0
05/18/00 19:35 0.1 0.4 0.5 1.3 310.0
02/24/00 14:55 0.8 0.8 0.5 <0.05 250.0

Nearby Sampling Locations

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