City of Boulder Storm Water Quality Program
Boulder Creek Watershed
Total Phosphate Time Series for 1999
Boulder Creek at 107th St

Preliminary Data - subject to revision

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

Information on Total Phosphate:

Phosphorus is generally found as phosphate (PO4-3). The primary sources of phosphates to surface water are detergents, fertilizers, and natural mineral deposits.

More general information about Total Phosphate
Measurement of Total Phosphate
Factors affecting Total Phosphate
Standards regarding Total Phosphate
Interpretation of Boulder Creek Total Phosphate data
Data Source: City of Boulder Water Quality Monitoring
Point of Contact: Chris Rudkin
Collection and Analysis notes
Analysis method: SM 4500-P B.5

Monitoring site information:
BC-107 Map
BC-107 Photo
  • Location: Boulder Creek at 107th St
  • Name: BC-107
  • Type: Composite
  • Frequency: Monthly
  • Longitude: 105 ° W 61'
  • Latitude: 40 ° N 35'
  • Elevation: 5010 feet asl
  • Site photo
Downstream Site: Boulder Creek Above Coal Creek
Upstream Site: Boulder Creek at 95th St

Plot Label Date TP
mg/L as P
01 January, 1999 0.81
02 February, 1999 1.13
03 March, 1999 No Data
04 April, 1999 1.04
05 May, 1999 0.48
06 June, 1999 0.18
07 July, 1999 0.38
08 August, 1999 0.35
09 September, 1999 0.70
10 October, 1999 1.03
11 November, 1999 0.94
12 December, 1999 1.24
*value below detection limit:
Detection Limit (if available) 0.03

Preliminary Data - subject to revision

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

Return to the BASIN water quality catalog

Return to the BASIN environmental data catalog

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