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City of Boulder Storm Water Quality Program |
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Boulder Creek Watershed
Ortho-phosphate Time Series for 2000
Boulder Creek at 75th St |
Preliminary Data - subject to revision
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 Indicates no data available |
 Indicates data exceeds plot scale. |
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Information on Ortho-phosphate:
Phosphorus
in natural waters is usually found in the form of phosphates (PO4-3).
Phosphates can be in inorganic form (including orthophosphates and
polyphosphates), or organic form (organically-bound phosphates).
Orthophosphate is sometimes referred to as "reactive phosphorus."
Orthophosphate is the most stable kind of phosphate, and is the form used
by plants. Orthophosphate is produced by natural processes and is found in
sewage.
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More general information about Ortho-phosphate
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Interpretation of Boulder Creek Ortho-phosphate data
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Monitoring site information: |
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- Location: Boulder Creek at 75th St
- Name: BC-75
- Type: Composite
- Frequency: Monthly
- Longitude: 105 ° W 10'
- Latitude: 40 ° N 30'
- Elevation: 5105 feet asl
- Site photo
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| Downstream Site: Boulder Creek above Dry Creek |
| Upstream Site: Boulder Creek above WW Plant |
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| Plot Label |
Date |
OP_Dis
mg/L as P |
| 01 |
January, 2000 |
2.02 |
| 02 |
February, 2000 |
2.54 |
| 03 |
March, 2000 |
3.13 |
| 04 |
April, 2000 |
2.64 |
| 05 |
May, 2000 |
1.17 |
| 06 |
June, 2000 |
0.85 |
| 07 |
July, 2000 |
0.67 |
| 08 |
August, 2000 |
0.62 |
| 09 |
September, 2000 |
1.53 |
| 10 |
October, 2000 |
1.49 |
| 11 |
November, 2000 |
1.71 |
| 12 |
December, 2000 |
1.88 |
| *value below detection limit: |
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| Detection Limit (if available) |
0.03 |
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Preliminary Data - subject to revision
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Select on the parameter name to view all Ortho-phosphate time series plots on the basin map.
Select on the table date to view stream Ortho-phosphate profiles observed on that date.
Select here to view all parameters at this site.
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To find out more about how you can be involved,
click here.
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