BASIN - 2000 Water Quality label for Middle Boulder Creek Above North Boulder Creek Confluence

	BASIN-USGS-COB Boulder Creek Millenium Baseline	WQ Significance WQ Data Plots Site Location Map WQ Data Table
	Boulder Creek Watershed Water Quality Data Data for 2000 - Middle Boulder Creek Above North Boulder Creek Confluence
	Preliminary Data - subject to revision

Data Source:	BASIN-USGS-COB Boulder Creek Millenium Baseline
Point of Contact:	Sheila Murphy


Monitoring site information:

	Location: Middle Boulder Creek Above North Boulder Creek Confluence Name: BC-aNBC Type: Composite Frequency: SemiAnnual Longitude: 105 ° W 24' Latitude: 40 ° N 20' Elevation: 6880 feet asl Site photo

Downstream Site: North Boulder Creek at Boulder Falls

Upstream Site: Boulder Creek at Orodell

Parameter	Units	High Flow Value	Lower Detection Limit	Range Ceiling
Water Temperature	° C	11.20	0.0
Dissolved Oxygen	mg/L	9.05		15
Dissolved Oxygen % of Saturation	-	No Data		200
Specific Conductance	µ mhos/cm	36	1.0	1000
pH	stnd units	7.67	NA
Total Organic Carbon	mg/L	3.15		10
Stream Flow	cfs	93.50		250
Total Alkalinity	mg/L as CaCO₃	9.9	1.0	120
Total Hardness	mg/L as CaCO₃	15.0	0.1
Nitrite	mg/L as N	< 0.0*	0.001	1.2
Nitrate	mg/L as N	0.0*	0.02	5.0
Nitrate	mg/L as N	< 0.1*	0.001	5.0
Nitrate + Nitrite	mg/L as N	No Data	0.1	20.0
Ammonia	mg/L as N	< 0.10*	0.1	2.5
Total Phosphate	mg/L as P	0.03	0.03	6.0
Fecal Coliform	#/100 mL	< 20*	1.0	150
Total Suspended Solids	mg/L	7	1	100
Total Dissolved Solids	mg/L	14	1	660
Turbidity	NTU	2.45	0.01	60
* indicates measured value below analysis detection limit listed in forth column:
* indicates measured value exceeds plot scale range listed in fifth column:

Preliminary Data - subject to revision

Select on the parameter name to view more detailed information on that parameter at this station. Select on the table date to view stream data profiles observed on that date.

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