Volunteer Monitoring
Lake Twelve participates in King County's Lake Stewardship Program, one of the longest-running citizen science lake monitoring programs in the Pacific Northwest. Volunteer monitors collect water samples and field measurements twice monthly from May through October each year.
Our Monitors: Jill & Ken Eide
Jill and Ken Eide have served as Lake Twelve's dedicated volunteer monitors since at least 2017 — nearly a decade of consistent, rigorous field work. Twice a month from May to October, they collect samples and measurements tracking:
💧 Total Phosphorus
Primary indicator of eutrophication risk and focus of the restoration's alum treatment.
🌱 Chlorophyll-a
A measure of algal biomass and overall lake productivity.
👁 Water Clarity (Secchi)
How deep light penetrates — a direct measure of water transparency.
🌡 Temperature & Nitrogen
Seasonal temperature profiles and nitrogen concentrations throughout the water column.
❤️ Thank you, Jill and Ken. Your nearly decade of dedication makes everything possible — from understanding the lake's health to making the case for restoration funding.