Seattle Chapter BWTF Results - Golden Gardens

Seattle Chapter
of the Surfrider Foundation

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Blue Water Task Force Results

Carkeek Park

Saltwater and Freshwater Sites

The Blue Water Task Force (BWTF) is the Surfrider Foundation's water quality monitoring, education and advocacy program. We are currently starting a sampling program.

Date	Location	Sample 1	Sample 2	Sample 3	Mean
11/17/2010	Stream *	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS
10/13/2010	Stream *	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS
09/29/2010	Stream *	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS
09/15/2010	Stream *	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS
09/01/2010	Stream *	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS
08/18/2010	Stream *	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS
08/04/2010	Stream *	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS	TC: NS EC: NS
06/23/2010	Stream *	TC: 2,419.6 EC: 99.0	TC: 2,419.6 EC: 95.9	TC: 2,419.6 EC: 105.0	TC: 2,419.6 EC: 100.0
06/23/2010	Sound #	Ent: 6.3	Ent: 5.2	Ent: 3.1 Ent: 2.0	Ent: 4.2

So what do the numbers mean, you ask. Following is a list of pertinent information.

The units for measurement are MPNs (Most Probable Number) per 100ml
TC -> Total Coliforms
- Total coliform counts are a drinking water standard, used in the state of California to regulate water quality, but not a recreational use standard"
EC -> E. coli
- The 1986 EPA freshwater standard for full-contact recreational use is 126/100mL
- E.coli is a better indicator of danger to humans than fecal coliforms

* next to the site name means the site is a freshwater site
# At marine sites we only test for Enterococcus.
N/S means there was no sample.
A ! next to the same means there was an issue with the sample and an associated note will be included at the bottom of the page

BWTF Main Page BWTF Testing Site Map BWTF Equipment Photos
Fecal coliform Wikipedia Enterococcus Wikipedia
2003 - EPA summary of bacterial water standards; Please see page 31 for Washington standards.