Riverwatch Data collected in the
Boulder Creek Watershed
by Boulder Area Schools
Boulder Creek at Boulder High School

Select here for Boulder Creek at Boulder High School metals data

Collection Date pH Water Temperature Dissolved Oxygen Phenol Alkalinity Total Alkalinity Total Hardness
- - ° C mg/l mg/l mg/l mg/l
12/7/91 7.60 3.5 12.0 0.0 56.0 80.0
12/28/91 7.57 1.0 11.0 0.0 50.0 72.0
1/16/92 7.47 1.0 8.0 0.0 40.0 68.0
2/10/92 8.11 4.0 10.0 0.0 54.0 110.0
3/2/92 8.28 8.0 8.0 0.0 58.0 92.0
3/18/92 8.27 5.0 10.0 0.0 80.0 116.0
4/6/92 8.07 6.0 12.0 0.0 58.0 102.0
4/13/92 8.21 11.0 10.0 0.0 46.0 66.0
4/20/92 7.94 8.0 8.0 0.0 34.0 50.0
4/27/92 8.17 13.0 8.0 0.0 44.0 60.0
5/5/92 8.35 14.0 10.0 0.0 38.0 44.0
5/11/92 7.80 13.0 9.0 0.0 22.0 34.0
5/18/92 7.76 14.0 9.0 0.0 20.0 26.0
5/26/92 7.82 9.0 10.0 0.0 18.0 28.0
6/8/92 7.69 12.0 8.0 0.0 18.0 28.0
6/15/92 7.58 13.0 10.0 0.0 18.0 27.0
6/22/92 7.61 17.0 9.0 0.0 16.0 22.0
6/29/92 7.59 16.0 9.0 0.0 18.0 20.0
7/15/92 7.53 14.5 10.0 0.0 14.0 26.0
7/20/92 7.61 17.5 9.0 0.0 16.0 22.0
8/1/92 7.49 14.0 9.0 0.0 22.0 34.0
8/10/92 7.76 19.0 8.0 0.0 36.0 46.0
8/31/92 7.82 12.0 9.0 0.0 26.0 36.0
9/14/92 7.87 15.0 9.0 0.0 32.0 44.0
10/19/92 7.72 11.0 10.0 0.0 30.0 42.0
11/9/92 7.62 3.0 8.0 0.0 40.0 58.0
12/7/92 7.67 4.0 7.0 0.0 58.0 78.0
1/11/93 7.68 1.0 13.0 0.0 44.0 52.0
2/9/93 8.73 7.0 10.0 4.0 42.0 60.0
3/1/93 8.56 7.0 11.0 8.0 48.0 70.0
3/15/93 9.15 8.0 9.0 6.0 55.0 82.0
4/5/93 8.27 9.0 9.0 0.0 58.0 88.0
4/12/93 8.36 9.0 10.0 0.0 68.0 96.0
4/19/93 8.50 10.0 8.0 4.0 60.0 90.0
5/3/93 8.39 12.0 8.0 0.0 42.0 58.0
5/10/93 8.02 13.0 7.0 0.0 48.0 44.0
5/17/93 7.66 11.0 6.0 0.0 22.0 30.0
5/24/93 7.83 10.0 8.0 0.0 15.0 22.0
6/7/93 7.74 11.0 10.0 0.0 15.0 19.0
6/15/93 7.46 13.0 10.0 0.0 16.0 20.0
6/21/93 7.48 12.0 10.0 0.0 14.0 20.0
6/28/93 7.64 13.0 9.0 0.0 14.0 18.0
7/13/93 7.91 9.0 8.0 0.0 10.0 12.0
7/19/93 7.90 14.0 6.0 0.0 12.0 16.0
7/26/93 7.63 14.0 6.0 0.0 12.0 20.0
8/9/93 7.41 14.0 7.0 0.0 19.0 23.0
8/23/93 7.93 11.0 11.0 0.0 28.0 38.0
9/13/93 8.01 8.0 7.0 0.0 22.0 26.0
10/8/93 7.36 8.0 6.0 0.0 34.0 44.0
11/8/93 8.18 3.5   0.0 60.0 88.0
12/13/93 8.44 1.0 8.0 0.0 42.0 65.0
1/10/94 8.40 2.0 6.0 0.0 50.0 76.0
2/7/94 8.41 1.0 7.0 0.0 42.0 62.0
3/7/94 7.84 3.5 6.0 0.0 53.0 88.0
3/28/94 8.31 5.0 7.5 0.0 48.0 88.0
4/11/94 8.10 3.0 6.0 0.0 60.0 98.0
4/18/94 8.76 10.0 6.5 0.0 38.0 72.0
4/25/94 8.30 5.5 6.0 0.0 27.0 44.0
5/2/94 8.18 8.0 7.0 0.0 38.0 52.0
5/9/94 8.03 11.0 6.0 0.0 28.0 41.0
5/16/94 8.16 13.0 5.0 0.0 26.0 36.0
5/23/94 7.63 11.0 6.0 0.0 18.0 46.0
6/6/94 7.66 14.0 6.0 0.0 17.0 22.0
6/15/94 7.50 10.0 6.0 0.0 17.0 21.0
6/20/94 7.82 13.0 6.5 0.0 18.0 19.0
6/28/94 7.72 16.0 6.0 0.0 14.0 16.0
7/6/94 7.47 13.5 6.0 0.0 21.0 23.0
7/25/94 7.65 15.0 5.0 0.0 17.0 22.0
8/25/94 7.67 16.0 5.0 0.0 40.0 48.0
9/12/94 7.43 14.0 5.0 0.0 26.0 30.0
10/10/94 7.92 10.0 7.0 0.0 24.0 28.0
9/27/95 7.89 12.0 5.0 0.0 30.0 26.0
10/11/95 8.83     0.0 30.0 80.0
10/25/95 7.02     0.0 24.0 38.0
11/1/95 8.14 3.0 5.0 0.0 36.0 38.0
11/15/95 8.16 7.0 6.0 0.0 32.0 70.0
11/29/95            
1/9/96 8.20 2.0 6.0 0.0 46.0 136.0
2/7/96 7.75 3.0 7.0 0.0 48.0 124.0
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