The Strawberry Sill sampling program was included as part of the long-term Lake Whatcom monitoring program. Five lake sites are included in the long-term monitoring program: Sites 1–4, located at the deepest points in their respective basins, and the Intake site (Figure 1, page 12). Beginning in October 1996, three sampling sites were added along the 40-meter contour of Strawberry Sill (Sites s1–s3 on Figure 2, page 13). The sill sampling effort was limited to monthly Hydrolab measurements and biannual water quality analyses. In October 2000, the sampling effort along the sill was reduced to a single site (s2), and all sampling was discontinued after September 2002.
Matthews, Robin A., "Strawberry Sill Water Quality Analysis" (2004). Lake Whatcom Other Reports. 5.