Cascade Water Alliance to begin milfoil treatment at Lake Tapps in July

  • Monday, June 10, 2019 10:13am
  • News

Cascade Water Alliance, which owns and operates the Lake Tapps Reservoir, conducted two milfoil surveys this spring. Based on these surveys, Cascade is announcing its 2019 planned milfoil treatment.

The areas designated to receive treatment are marked on the map shown above. Treatment will occur during the second week of July. Residents in planned treatment areas will be notified regarding time and dates of treatment prior to actual application.

This year, Cascade will be using one or more of the following treatments.

The first is a newly approved treatment ProcellaCOR. The State Department of Ecology recently authorized use of this aquatic herbicide that has been deemed to be more a more effective chemical than has been used previously. It is environmentally friendlier, and with this new treatment, results are expected to be significantly better. This treatment may affect water that is used for irrigation, but, as a reminder, pumping or drawing Lake Tapps Reservoir water for irrigation is never permitted.

Treatments may also include the aquatic herbicide RenovateOTF (triclopyr). The Washington Department of Ecology recommends not swimming in the area treated by RenovateOTF for at least 12 hours post treatment.

For aquatic plant management options for lakefront property owners at Lake Tapps, see Aquatic Plant Removal or Control, which includes the Washington Department of Fish and Wildlife’s Aquatic Plants & Fish Pamphlet.

Milfoil is found in most Northwest lakes. It has been in Lake Tapps on and off for years. Milfoil is no longer classified as a noxious weed, and therefore, Cascade has no legal obligation to address milfoil. However, Cascade is as interested as residents and recreation enthusiasts in keeping the reservoir clean and safe. This is why, over the past decade, Cascade has treated and addressed milfoil management on a regular basis at its own cost. Cascade does not manage natural vegetation.

In addition, Cascade has teamed up with the Tacoma-Pierce County Health Department to offer residents TappsWise, a natural yard care and septic system maintenance program to keep Lake Tapps clean and healthy.

For more information visit cascadewater.org.

More in News

Senate passes Wilson bill to correct timetable for childcare payments

Another bill prohibits solitary confinement of youths

Metro describes benefits of future bus base to city leaders

King County’s population has grown by more than 2 percent every year… Continue reading

Student arrested after bringing gun to Thomas Jefferson High School

Police believe the student discarded the handgun during or at the end of a fight with another student and retrieved it again later in the day.

Schools stage Future Lions Family Fitness Night on Feb. 27

Program includes entertainment, music and activities, fitness dance instruction, games and obstacle courses

From left, social workers Tamara Liebich-Lantz and Carrie Talamaivao, SKFR Capt. Roy Smith and VRFA Firefighter Johan Friis smile for a photo in front of the CARES SUV at the Valley Regional Fire Authority Station 35. Photo courtesy of CARES
South King Fire, Valley Regional Fire CARES for the local community

The Community Assistance, Referrals and Education Services unit fills niche of emergency assistance to help South King County’s most vulnerable populations.

Seattle Police bust Auburn man for possession of illegal drugs and firearms

Seattle Police Department SWAT and narcotics detectives recently arrested a 37-year-old Auburn… Continue reading

Auburn’s local streets in good shape

Collectors and arterials, eh, not so hot

Senate passes Wilson bill to make childcare facilities gun-free zones

Childcare facilities would carry the same prohibitions on deadly weapons as K-12… Continue reading

Most Read