Map of SJI Sampling Sites
Biannual San Juan Island Water Quality Result Overviews
2006-2008:
2004-2006:
2002-2004:
*Fecal coliform must meet two separate conditions in order to determine class. **A circle that contains two colors shares standards.
All surface water sites in San Juan County are to meet the Extraordinary or Class AA Washington State water quality standard.
Percentage of Fecal coliform Sampling Averages per Class Level
Graphed Annual Water Quality Results
NOTE: Fecal coliform must meet two separate conditions in order to determine class (See standards above).
NOTE: For graphing purposes, all raw data has been adjusted to correspond with different turbidity background levels (BGL) for each site.
NOTE: Due to sampling dates with no flow data taken, a line has been inserted to connect points separated by a missing flow data point. For example, if the water was still, dry or too dangerous to enter.
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