Monthly Water Sampling Results for Turkey River, North Branch @ 115th St

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 13:00 Neil Shaffer 7.9 <32 10.0 50.0 60+ 8 0.06 3.5 122 13.2 89.0
09/29/15 09:30 Neil Shaffer 8.2 <32 18.0 64.4 60+ 8 0.08 3.2 464 5.3 10.5 55.6
08/25/15 10:00 Neil Shaffer 8.4 <33 16.0 60.8 60+ 9 0.05 5.0 414 5.2 9.2 27.9
07/28/15 14:40 DCG/HCS 8.3 <32 24.7 76.5 26 0.16 4.8 3076 7.3 10.4 17.9
06/30/15 08:31 Derek Grube 8.2 <32 18.3 65.0 26 5 0.1 15.8 504 16 17.6 19.3
11/05/14 10:20 Neil Shaffer 8.0 <29 8.0 46.4 60+ 11 0.04 8.3
10/01/14 13:50 Neil Shaffer 8.2 <29 13.0 55.4 60+ 10 0.13 7.6 560
09/03/14 09:00 Neil Shaffer 8.0 <29 18.0 64.4 35 7 0.17 5.6 3700
08/06/14 08:55 Neil Shaffer, HCS 9.5 <29 18.0 64.4 60+ 4 0.04 6.2 320
08/06/14 08:50 Neil Shaffer, HCS 9.3 <29 18.0 64.4 60+ 4 0.05 6.2 470
07/09/14 13:21 Neil Shaffer, HCS 9.0 <32 19.0 66.2 60+ 7 0.05 13.0 370
06/04/14 07:30 Neil Shaffer, HCS 8.4 <32 16.0 60.8 60+ 7 0.08 15.0 2500
06/04/14 07:20 Neil Shaffer, HCS 8.6 <32 16.0 60.8 60+ 7 0.04 14.0 570
05/07/14 13:00 Neil Shaffer 8.0 <29 9.4 49.0 60+ 9 0.04 13.0 <10
04/02/14 14:05 Neil Shaffer 7.8 <29 4.4 40.0 55 10 0.15 5.0 <10
11/06/13 11:15 Neil Shaffer 7.9 <30 4.4 40.0 38 11 0.13 2.9 5500 <0.05
11/06/13 11:00 Neil Shaffer 8.0 <30 4.4 40.0 40 11 0.15 9.6 4900 0.06
10/16/13 15:00 Neil Shaffer 8.3 <30 10.6 51.0 60+ 7 0.03 9.4 730 <0.05
09/04/13 15:00 Neil Shaffer 8.3 <30 21.7 71.0 60+ 9 0.03 5.9 200 <0.05
08/07/13 13:30 Neil Shaffer, Ethan Theis 7.9 <30 21.1 70.0 60+ 8 0.06 13.0 1200 <0.05
07/10/13 09:30 Neil Shaffer & Dale Dennler 8.1 <30 19.4 67.0 44 6 0.07 12.0 2400 0.08
06/05/13 11:20 Neil Shaffer, Ethan Theis 8.0 <30 13.4 56.1 31 10 0.11 14.0 4600 <0.05
05/01/13 10:30 Neil Shaffer 8.0 <30 8.9 48.0 60+ 9 0.05 16.0 95 <0.05
04/10/13 11:30 Neil Shaffer 8.2 <30 2.0 35.6 5 10 1.1 2.6 1800 0.46
11/07/12 09:54 8.4 <33 6.0 42.8 60+ 10 0.04 1.7 85 <0.05
10/03/12 13:00 8.3 <33 15.0 59.0 60+ 12 0.05 0.66 130 <0.05
10/03/12 13:00 8.3 <33 15.0 59.0 60+ 12 0.04 0.64 93 <0.05
09/05/12 08:15 8.1 <33 21.0 69.8 60 4 0.08 0.73 2200 <0.05
08/01/12 08:35 8.0 <33 21.5 70.7 60 4 0.07 1.2 500 <0.05
07/02/12 12:35 8.1 <33 28.0 82.4 60+ 5 0.07 2.7 220 0.1
07/02/12 12:35 8.1 <33 28.0 82.4 60+ 5 0.06 2.8 360 0.13
06/06/12 08:14 8.2 <33 17.0 62.6 60+ 5 0.07 11.0 410 <0.05
05/02/12 13:30 7.9 <33 14.0 57.2 20 13 0.25 13.0 16000 <0.05
04/04/12 12:45 8.4 <33 13.0 55.4 60+ 8 <0.02 4.3 41 <0.05
11/02/11 14:24 9.2 <33 5.0 41.0 60+ 10 0.06 2.6 750 <0.05
11/02/11 14:24 9.2 <33 5.0 41.0 60+ 10 0.08 2.6 440 <0.05
10/05/11 13:45 8.2 <33 16.7 62.0 60+ 10 0.07 2.5 310 <0.05
09/07/11 12:01 8.3 <33 15.6 60.0 60+ 10 0.08 3.6 590 0.05
08/03/11 12:50 8.1 <33 22.78 73.0 60+ 10 0.06 4.3 330 <0.05
08/03/11 12:34 8.2 <33 25.6 78.0 60+ 10 0.04 4.3 290 0.08
07/06/11 12:11 8.2 <33 22.2 72.0 60+ 10 0.06 7.2 480 <0.05
06/01/11 11:15 8.2 <33 14.4 57.9 60 10 0.05 12.0 130 <0.05
05/04/11 11:20 7.8 <33 6.7 44.1 60+ 8 0.04 10.0 <10 <0.05
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Yearly Averages for Turkey River, North Branch @ 115th St (with comparison to all sites 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 8.2 (8.3) <33 (<33) 14.9 (15.6) 58.8 (60.1) 60+ (53) 8.4 (8.6) 0.1 (0.19) 7.4 (6.5) 395 (376) 0.07 (0.09) 8 (20) 12.18 (22.17) 41.94 (23.58)
2015 Mean 8.2 (8.3) <33 (<33) 17.4 (17.3) 63.3 (63.1) 54 (53) 7.5 (7.2) 0.09 (0.23) 6.5 (6.1) 515 (442) 8 (20) 12.18 (22.17) 41.94 (23.58)
2014 Mean 8.4 (8.2) <33 (<33) 13.2 (14.6) 55.8 (58.3) 60+ (57) 8.1 (8.4) 0.08 (0.18) 9.1 (7.3) 201 (196)
2013 Mean 8.1 (8.2) <33 (<33) 12.7 (13.6) 54.8 (56.5) 51 (46) 8.8 (8.8) 0.2 (0.27) 10.3 (7.6) 1062 (960) 0.1 (0.13)
2012 Mean 8.2 (8.3) <33 (<33) 16.9 (17.4) 62.5 (63.3) 60+ (51) 7.6 (8.8) 0.08 (0.17) 4.4 (4.8) 413 (374) 0.05 (0.07) (16)
2011 Mean 8.3 (8.3) <33 (<33) 15.2 (15.9) 59.3 (60.7) 60+ (58) 9.7 (9.0) 0.06 (0.1) 6.0 (6.4) 197 (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).

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Water Quality Standards

For 30.6% 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 71.4% 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).

Site Information

NameTurkey River, North Branch @ 115th St
CodeTRN-10
CountyHoward
Latitude43.3492
Longitude-92.1879
UTM_X565817.0
UTM_Y4799912.0
NotesSchmauss
HUC_87060004
Sampled byHoward County Soil and Water Conservation District

Sampling Location

Photos from TRN-10

Nearby Sampling Locations

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