ME Acadia National Park Lake Nutrient data 1975-2005

Water quality data collected by Acadia National Park (U.S. National Park Service) staff using the procedures found in the Maine Department of Environmental Protection’s Lake Assessment Program Standard Operating Procedures (1975-2005 samples). Sampling occurs annually and is scheduled to continue indefinitely. Additional data from non-NPS collaborators are also included.

Parameters measured in the field include Secchi transparency and surface temperature. Secchi depth was always measured using a viewing scope, and a viewing scope with "mask" was used from 1996 to present. Color, chlorophyll a, total nitrogen, total phosphorus, DOC, anion & cation samples were collected as grab samples or depth-integrated epilimnetic samples in lakes, and then sent to a central laboratory for analyses.