Lake Creek is one of the major tributaries to the Sol Duc and it contains some of most productive coho habitat in the Quillayute system; these coho include a unique, resident population. All of the sockeye in the entire Quillayute system spawn in Lake Pleasant, which they access via Lake Creek.

Major knotweed infestations had been seen on Lake Creek for several years and during the 2006 season some control work was done on the lower portion of Lake Creek and on two properties near Lake Pleasant. Both the Lake Pleasant sites were significant in size and had plants over six feet tall.

In 2006, the Quileutes surveyed Lake Creek and recorded 106 sites. Almost half of the sites had canes taller than six feet, and 41% had 200 or more canes. However, ">200" was the highest category available in the Data Dictionary at that time (more categories were added later). In some cases the surveyor wrote a better estimate of the number in the "Comments" column. Fifteen sites were estimated to have between 200 and 1,000 stems; ten were estimated to have 1,000 to 2,000 and 11 were thought to have over 2,000.

In 2007 the CCNWCB crew treated all of the sites on Lake Creek identified in the 2006 survey. They also treated some additional sites on Lake Pleasant as well as a site in the nearby community of Beaver.

In 2008 the same team monitored all sites and re-treated as necessary. Two new sites were treated on Lake Pleasant.

In 2009 treatment continued. Although this was the third year of treatment, herbicide use increased slightly, mainly because the crew treated Lake Creek in August and September, when plants had been able to reach full size.

In 2010 CCNWCB did no treatments on Lake Creek or Lake Pleasant. However, a landowner there attended our landowner training session in Sekiu, and was actively involved in controlling not only his own but also his neighbors' knotweed. This is EXACTLY the type of result we were hoping for when we began our outreach efforts. Also, much of the land on Lake Creek is owned by Rayonier Timberlands and we met with their silviculturist and discussed knotweed monitoring and control. Rayonier will eventually incorporate this into their forestry program.

Similar outreach took place as has been described in previous sections. We wrote to landowners in April, explaining we would not be able to send a crew out this year, asking them to monitor and spray their own knotweed, and giving some control recommendations. We held training workshops in Sekiu, Forks and other locations. All were extensively advertised locally through posters, radio, newspaper and email. Equipment and supplies were made available to landowners who took our training.