On May 28th, at 11:18 pm, a 10.6 foot tide occurred.  Our class collected water samples the next day, roughly 11 hours after this tide.  From our “rule of twelfths” and water depth measurements in the culvert, we hypothesize that tides greater than 10.3 likely flood the marsh.  We wanted to collect and test water samples from the marsh and see if any salinity could be measured.

Addie collecting a water sample on May 29th

What we found was this:

May 29th, about 11 hours after a 10.6 tide at 11:18 pm on May 28th.

Ella using a refractometer