BASIN: Boulder Creek Watershed Riverwatch Data


	Riverwatch Data collected in the Boulder Creek Watershed by Boulder Area Schools
	Boulder Creek at 4 Mile Creek

Select here for Boulder Creek at 4 Mile Creek 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	0.5	13.0	0.0	44.0	74.0
12/28/91	8.02	-1.0	13.0	0.0	66.0	126.0
1/16/92	7.88	0.0	12.0	0.0	52.0	90.0
2/10/92	8.38	1.9	12.0	0.0	48.0	86.0
3/2/92	8.80	7.0	8.0	12.0	62.0	92.0
3/18/92	8.34	4.0	9.0	0.0	78.0	120.0
4/7/92	8.43	8.0	11.0	0.0	56.0	84.0
4/13/92	8.35	10.0	9.0	8.0	50.0	64.0
4/20/92	8.05	8.0	10.0	0.0	34.0	48.0
4/27/92	8.28	12.0	10.0	0.0	40.0	56.0
5/5/92	8.26	14.0	9.0	0.0	34.0	44.0
5/11/92	7.84	12.0	8.0	0.0	22.0	32.0
5/18/92	8.03	14.0	9.0	0.0	16.0	24.0
5/25/92	7.95	9.0	11.0	0.0	18.0	34.0
6/8/92	8.25	12.0	9.0	0.0	12.0	20.0
6/15/92	7.53	12.0	10.0	0.0	20.0	22.0
6/22/92	7.73	17.0	8.0	0.0	20.0	16.0
6/29/92	7.86	15.0	8.0	0.0	12.0	16.0
7/15/92	7.94	13.5	10.0	0.0	12.0	18.0
7/20/92	7.92	16.5	9.0	0.0	12.0	18.0
8/1/92	7.77	14.0	10.0	0.0	13.0	22.0
8/10/92	7.83	17.0	9.0	0.0	16.0	18.0
8/31/92	8.01	13.5	9.0	0.0	18.0	22.0
9/14/92	7.73	15.5	10.0	0.0	18.0	20.0
10/19/92	8.30	11.0	10.0	0.0	24.0	34.0
11/9/92	8.05	3.0	9.0	0.0	30.0	48.0
12/7/92	8.21	2.0	9.0	0.0	62.0	112.0
1/11/93	8.07	1.0	10.0	0.0	72.0	106.0
2/9/93	8.59	3.0	13.0	8.0	72.0	102.0
3/1/93	8.45	2.0	12.0	0.0	48.0	78.0
3/15/93	8.70	3.0	9.0	4.0	52.0	84.0
4/5/93	8.24	5.0	12.0	0.0	48.0	96.0
4/12/93	8.56	6.0	12.0	0.0	58.0	98.0
4/19/93	8.31	4.5	12.0	0.0	64.0	84.0
5/3/93	8.19	9.0	11.0	0.0	36.0	54.0
5/10/93	8.74	7.5	11.0	0.0	32.0	46.0
5/17/93	7.90	9.5	12.0	0.0	20.0	28.0
5/24/93	7.92	10.0	9.0	0.0	16.0	24.0
6/7/93	7.49	10.0	10.0	0.0	12.0	20.0
6/15/93	7.86	11.5	10.0	0.0	12.0	20.0
6/21/93	7.87	11.5	10.0	0.0	14.0	17.0
6/28/93	7.58	12.0	10.0	0.0	10.0	13.0
7/13/93	7.57	0.0	8.0	18.0	12.0	14.0
7/19/93	7.75	14.0	6.0	0.0	12.0	14.0
7/24/93	8.21	4.0	6.0	0.0	11.0	15.0
8/9/93	7.98	13.0	6.0	0.0	8.0	14.0
8/23/93	7.69	12.0	6.0	0.0	12.0	16.0
9/13/93	8.43	9.0	6.0	0.0	12.0	20.0
10/8/93	7.64	8.0	6.0	0.0	20.0	26.0
11/8/93	8.70	0.0	8.0	0.0	46.0	84.0
12/13/93	8.74	-0.5	7.0	0.0	38.0	60.0
1/10/94	8.45	0.0	7.0	0.0	50.0	77.0
2/7/94	8.96	0.0	5.0	0.0	54.0	84.0
3/6/94	8.68	1.0	8.0	0.0	42.0	88.0
3/28/94	8.66	3.0	6.0	0.0	54.0	90.0
4/11/94	8.40	2.0	8.5	0.0	28.0	96.0
4/18/94	8.70	7.5	7.0	0.0	50.0	76.0
4/25/94	8.52	5.0	6.5	0.0	24.0	58.0
5/2/94	8.56	6.0	8.0	0.0	34.0	46.0
5/9/94	8.20	9.0	7.0	0.0	24.0	40.0
5/16/94	8.05	10.0	6.0	0.0	22.0	32.0
5/23/94	8.53	11.0	6.0	0.0	18.0	24.0
6/6/94	7.62	13.0	6.5	0.0	14.0	22.0
6/15/94	7.49	10.0	6.0	0.0	16.0	18.0
6/20/94	7.84	13.0	6.0	0.0	13.0	15.0
6/28/94	7.68	16.0	6.0	0.0	12.0	15.0
7/6/94	7.54	12.5	6.0	0.0	12.0	16.0
7/25/94	7.67	15.0	5.0	0.0	10.0	14.0
8/11/94	7.10	19.0	5.0	0.0	14.0	17.0
8/25/94	7.66	14.5	5.5	0.0	18.0	22.0
9/12/94	7.50	13.0	6.0	0.0	14.0	20.0
10/10/94	7.39	6.0	6.0	0.0	16.0	20.0
5/14/95	7.62	5.0	6.0	0.0	36.0	56.0
12/6/95	8.14	3.0	11.0	0.0	46.0	72.0

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