Herbicide Treatment at Lake Wilderness

Business & residents within 1/4 mile of Lake Wilderness will be receiving notices this month in regards to scheduled water treatment using the herbicide Aquathol and Reward. A notice will also be posted for public & private shoreline properties 400 feet of the treatment areas 48 hours before treatment.

During  this process:

• No swimming during or for 24 hours after treatment
• No potable water withdrawals
• No irrigation water withdrawals until concentration is less then 0.1 parts per million (usually 72 hours)
• No restrictions for fishing

The treatment is consistent with City of Maple Valley’s permit coverage under the Aquatic Plant and Algae Management General Permit No. WAG-994020 and will be limited to approximately five acres in the south-southwest bay, one acre in the boat launch area and one to two acres near the swimming beach.

• Integrated Aquatic Vegetation Management Plan (IAVMP) [PDF]
  Aquatic Plan and Algae Management General Permit [PDF]

For more information visit www.maplevalleywa.gov/lakes.

Advertisement