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 water quality data

Collection Date Dissolved Cadmium Total Cadmium Dissolved Copper Total Copper Dissolved Iron Total Iron Dissolved Manganese Total Manganese Dissolved Lead Total Lead Dissolved Zinc Total Zinc
- µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l
10/28/93                        
11/10/93                        
12/10/93                        
1/20/94   0.00   0.0   134.0   0.0   0.0   10.0
2/24/94   0.00   10.4   0.0   0.0   0.0   0.0
3/10/94   0.13   0.0   0.0   0.0   0.0   0.0
3/31/94   0.00   2.0   0.0   17.0   0.0   10.0
4/28/94   0.00   3.2   825.0   40.0   1.4   0.0
5/5/94   0.00   2.4   351.0   42.0   0.0   0.0
5/13/94   0.11       695.0   31.0   0.0   0.0
5/26/94   0.39   4.2   1897.0   63.0   4.4   12.0
6/3/94   1.58   5.2   668.0   34.0   2.5   12.0
8/3/94   0.00   1.9   370.0   0.0   0.0   16.0
8/27/94   1.40   3.0   148.0   0.0   0.0   18.0
9/28/94   0.24   1.9   201.0   0.0   0.0   14.0
10/11/94   0.00   1.1   252.0   0.0   0.0   13.0
10/26/94   0.00   1.3   175.0   0.0   0.0   0.0
11/30/94   0.00   0.0   0.0   0.0   0.0   0.0
1/18/95   0.00   0.0   186.0   0.0   0.0   0.0
2/22/95   0.00   0.0   163.0   0.0   0.0   0.0
3/8/95   0.00   0.0   307.0   0.0   0.0   12.0
3/22/95   0.00   0.0   111.0   20.0   0.0   16.0
4/12/95   0.00   2.0   144.0   18.0   0.0   0.0
5/1/95   0.00   5.3   1450.0   78.0   2.3   43.0
5/9/95   0.00   4.3   885.0   56.0   1.7   60.0
5/18/95   0.11   7.6   2565.0   117.0   3.9   58.0
6/18/95                        
7/12/95                        
7/20/95                        
8/9/95   0.00   2.5   203.0   0.0   0.0   18.0
9/27/95   0.00   1.8   174.0   13.0   0.0   69.0
10/19/95   0.00   1.9   120.0   18.0   0.0   0.0
11/29/95   0.00   1.8   0.0   15.0   0.0   0.0
12/13/95   0.31   7.1   107.0   0.0   1.4   0.0
1/24/96   0.00   10.1   119.0   0.0   0.0   0.0
2/7/96   0.00   1.7   0.0   0.0   0.0   12.0
3/20/96   0.00   2.4   152.0   14.0   0.0   0.0
4/17/96   0.00   3.0   513.0   37.0   0.0   0.0
5/1/96   0.00   5.1   2200.0   114.0   17.9   16.0
6/2/96   0.00   4.0   442.0   11.0   0.0   0.0
9/25/96   0.00   1.7   194.0   12.0   0.0   0.0
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