BASIN-USGS-COB Boulder Creek Millenium Baseline
Boulder Creek Watershed
Water Quality Data Data for 2000 - Boulder Creek above WW Plant

Preliminary Data - subject to revision


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

Monitoring site information:
BC-aWWTP Map
  • Location: Boulder Creek above WW Plant
  • Name: BC-aWWTP
  • Type: Composite
  • Frequency: SemiAnnual
  • Longitude: 105 ° W 11'
  • Latitude: 40 ° N 30'
  • Elevation: 5125 feet asl
  • Site photo
Downstream Site: Boulder Creek at 61st St.
Upstream Site: Boulder Creek at 75th St

Parameter Units High Flow Value Lower Detection LimitRange Ceiling
Water Temperature° C 17.80 0.0 
Dissolved Oxygenmg/L 7.70   15
Dissolved Oxygen % of Saturation- No Data   200
Specific Conductanceµ mhos/cm 104 1.01000
pHstnd units 8.20 NA 
Total Organic Carbonmg/L 3.14   10
Stream Flowcfs 86.91   250
Total Alkalinitymg/L as CaCO3 28.6 1.0120
Total Hardnessmg/L as CaCO3 60.0 0.1 
Nitritemg/L as N < 0.0* 0.0011.2
Nitratemg/L as N 0.1 0.025.0
Nitratemg/L as N < 0.1* 0.0015.0
Nitrate + Nitritemg/L as N No Data 0.120.0
Ammoniamg/L as N < 0.10* 0.12.5
Total Phosphatemg/L as P 0.03 0.036.0
Fecal Coliform#/100 mL No Data 1.0150
Total Suspended Solidsmg/L 13 1100
Total Dissolved Solidsmg/L 26 1660
TurbidityNTU 10.20 0.0160
* 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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