City of Longmont Water Quality Monitoring
Saint Vrain Watershed
Stream Flow Time Series for 2000
St. Vrain River at County Line Road

Preliminary Data - subject to revision


Marker Indicates no data available
Marker Indicates data exceeds plot scale.

Information on Stream Flow:

Flow is the volume of water moving past a point in a unit of time. Two things make up flow: the volume of water in the stream, and the velocity of the water moving past a given point. Flow affects the concentration of dissolved oxygen, natural substances, and pollutants in a water body. Flow is measured in units of cubic feet per second (cfs). Peak flows for Boulder Creek in the spring can reach as high as 300-800 cfs and as low as 10-50 cfs in the fall months.

More general information about Stream Flow
Measurement of Stream Flow
Factors affecting Stream Flow
Standards regarding Stream Flow
Interpretation of Saint Vrain Stream Flow data
Data Source: City of Longmont Water Quality Monitoring
Point of Contact: Sheila Murphy
Collection and Analysis notes

Monitoring site information:
SVaCL Map
  • Location: St. Vrain River at County Line Road
  • Name: SVaCL
  • Type: Unknown
  • Frequency: Unknown
  • Longitude: 105 ° W 35'
  • Latitude: 40 ° N 89'
  • Elevation: feet asl
Downstream Site: St. Vrain River at Boulder Creek
Upstream Site: St. Vrain River above WWTP Effluent

Plot Label Date Flow
cfs
01 January, 2000 46.36
02 February, 2000 52.56
03 March, 2000 33.22
04 April, 2000 49.68
05 May, 2000 51.02
06 June, 2000 162.23
07 July, 2000 59.09
08 August, 2000 0.00
09 September, 2000 0.00
10 October, 2000 0.00
11 November, 2000 37.50
12 December, 2000 No Data
*value below detection limit:
Detection Limit (if available)  

Preliminary Data - subject to revision

Select on the parameter name to view all Stream Flow time series plots on the basin map. Select on the table date to view stream Stream Flow profiles observed on that date. Select here to view all parameters at this site.

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