Baseline water quality inventory - Fort Clatsop National Memorial
Larson GL and Ek DA. 1998. Baseline water quality inventory - Fort Clatsop National Memorial. Technical Report NPS/CCOOSU/NRTR-98/12. National Park Service. Seattle, WA
A general water quality survey of selected water resources was conducted at Fort Clatsop National Memorial (FOCL) during the period from 1994 to 1997. The sampling sites included the Lewis and Clark River and an associated slough, two permanent streams, one ephemeral stream, two ephemeral springs, and three ephemeral ponds. The water quality characteristics among the sites were relatively diverse and variable. Seasonal changes of most water quality variables were pronounced. No obvious impacts from human-related activities were observed,with the exception of dioxin/furan contamination of the sediment in the Lewis and Clark River.Based on the results of this initial survey, a long-term water quality monitoring program was recommended to document normal average conditions for each variable at each sampling site. FOCL was encouraged to seek advice and assistance from local, state, and federal agencies to interpret its water quality data and to assess the importance of the data to the management of the Lower Columbia River Estuary System.