Riverwatch Data collected in the
Boulder Creek Watershed
by Boulder Area Schools

Boulder Creek at the 9th Street Bridge

Select here for Boulder Creek at the 9th Street Bridge metals data


Collection Date pH Water Temperature Dissolved Oxygen Phenol Alkalinity Total Alkalinity Total Hardness
- - ° C mg/l mg/l mg/l mg/l
10/28/93 7.39 6.0 10.0 0.0 39.0 56.0
11/10/93 7.73 6.0 10.7 0.0 58.0 84.0
12/10/93 7.76 4.0 10.8 0.0 40.0 66.0
1/20/94 7.72 0.0 11.7 0.0 38.0 44.0
2/24/94 7.82 0.0 7.6 0.0 32.0 53.0
3/10/94 7.71 3.0 11.6 0.0 36.0 72.0
3/31/94 7.79 6.0 9.1 0.0 42.0 56.0
4/28/94 7.58 2.0 11.0 0.0 32.0 58.0
5/5/94 8.07 12.0 9.5 0.0 32.0 54.0
5/13/94 7.54 14.0 9.2 0.0 18.0 34.0
5/26/94 7.70 14.0 9.2 0.0 16.0 24.0
6/3/94 7.61 14.5 8.9 0.0 13.0 18.0
8/3/94 7.64 18.0 7.8 0.0 12.0 20.0
8/27/94 7.65 16.0 7.7 0.0 21.0 28.0
9/28/94 7.50 10.0 8.8 0.0 11.0 24.0
10/11/94 8.76 9.0 10.0 0.0 18.0 26.0
10/26/94 7.83 8.0 9.0 0.0 10.0 34.0
11/30/94 7.71 0.0 11.0     124.0
1/18/95 7.78 0.0 10.8 0.0 34.0 44.0
2/22/95 7.74 3.0 10.0 0.0 44.0 48.0
3/8/95 7.31 7.0 10.7 0.0 26.0 56.0
3/22/95 7.55 5.0 9.8 0.0 32.0 44.0
4/12/95 7.47 1.0 11.3 0.0 38.0 42.0
5/1/95 7.83 3.0 10.9 0.0 36.0 100.0
5/9/95 7.65 5.0 10.8 0.0 38.0 80.0
5/18/95 7.94 8.0 9.3 0.0 40.0 108.0
6/18/95 7.74 14.0 9.6 0.0 20.0 50.0
7/12/95 7.68 11.0 8.7 0.0 12.0 20.0
7/20/95 7.57 14.0   0.0 20.0 16.0
8/9/95 7.73 12.0 8.0 0.0 20.0 14.0
9/27/95 7.71 9.0 9.5 0.0 19.0 26.0
10/19/95 7.73 4.0 10.0 0.0 30.0 44.0
11/29/95 8.25 3.0 13.0 0.0 54.0 77.0
12/13/95 8.10 3.0 11.0 0.0 30.0 46.0
1/24/96 7.68 0.0 11.0 0.0 31.0 57.0
2/7/96 7.95 0.5 9.9 0.0 47.0 66.0
3/20/96            
4/17/96            
5/1/96            
6/2/96            
9/25/96 7.54 11.0 9.0 0.0 6.0 30.0

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