BASIN-USGS-COB Boulder Creek Millenium Baseline
Boulder Creek Watershed
Middle Boulder Creek - Boulder Creek
Longitudinal Fecal Coliform Profiles for October, 2000

Preliminary Data - subject to revision

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

Information on Fecal Coliform:

Fecal Coliform Bacteria is found in the intestinal tracts of mammals. High concentrations of the bacteria in water or sludge suggest the presence of disease-causing organisms, and may be caused by septic tank failure, poor pasture and animal keeping practices, pet waste, and urban runoff.

To measure fecal coliform bacteria, water samples are collected in sterilized containers, filtered, and incubated at a certain temperature. The resulting bacterial colonies that form are counted and recorded as the number of colony producing units per 100 ml of water (CPU/100 ml). Safe drinking water should have fecal coliform counts of 0 CPU/100 ml. For safe swimming, concentrations less than 200 CPU/100 ml is desirable, and for boating, less than 1000 CPU/100 ml is desirable. However, these standards may vary at the local, state, and federal level.

More general information about Fecal Coliform
Factors affecting Fecal Coliform
Standards regarding Fecal Coliform
Interpretation of Boulder Creek Fecal Coliform data
Data Source:
Point of Contact:
Collection and Analysis notes

Indicated monitoring site:

The above map indicates water quality monitoring sites. To view data at a specific site select it from the map with the mouse.

Plot Label SiteName FColi
#/100 mL
MBC-ELDORA Middle Boulder Creek above town of Eldora 1
MBC-WTP Middle Boulder Creek @ Nederland WTP 0*
MBCaW Middle Boulder Creek at PSCo Weir 0*
BC-aNBC Middle Boulder Creek Above North Boulder Creek Confluence 50
BC-ORO Boulder Creek at Orodell 20
BC-CAN Boulder Creek at Eben G. Fine Park 20
BC-30 Boulder Creek at 30th St. 694
BC-61 Boulder Creek at 61st St. 130
BC-aWWTP Boulder Creek above WW Plant 80
BC-75 Boulder Creek at 75th St 330
BC-aDC Boulder Creek at Dry Creek 230
BC-95 Boulder Creek at 95th St 80
BC-107 Boulder Creek at 107th St 80
BC-aCC Boulder Creek Above Coal Creek 220
BC-bCC Boulder Creek Below Coal Creek 130
BC-aSV Boulder Creek above St. Vrain 2
*value below detection limit:
Detection Limit (if available) 1.0

Preliminary Data - subject to revision

Select on the parameter name to view more detailed information for that parameter in this month. Select on the site name to view data time series observed at that station. For monitoring site locations see site location map.

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