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Johnson County

Research-based Information You Can Trust — Localized for your needs

Johnson County
11811 S. Sunset Drive
Suite 1500
Olathe, KS 66061

Office Hours:

Monday - Friday,
8:30 a.m. - 5 p.m.

(913) 715-7000
(913) 715-7005 fax

Map to our office

K-State Research and Extension is committed to making its services, activities and programs accessible to all participants. Reasonable accommodations for persons with disabilities may be requested by contacting Johnson County Extension at (913)715-7000. Notify staff of accommodation needs as early as possible.

Kansas State University Agricultural Experiment Station and Cooperative Extension Service

K-State Research and Extension is an equal opportunity provider and employer.

Mill Creek Stream Team

The Mill Creek Stream Team collects water chemistry and macroinvertebrate samples along Mill Creek to supplement other monitoring efforts in the area. Other activities include stream cleanups along waterways, education programs with Friends of the Kaw, and riparian restoration with Johnson County Parks and Recreation.

photo of mill creekOur Mission

To monitor, maintain, and restore natural conditions in Mill Creek and other Johnson County streams while providing education and outreach to the public.

Stream Monitoring

Our team monitors water quality indicators in the stream four times a year. We sample for water quality chemical indicators using field instruments and test kits and perform macroinvertebrate sampling twice a year.

Stream Maintenance

Working with the Johnson County Parks and Recreation District and other partners, the water quality project organizes and participates in stream cleanups and habitat restoration, including removal of invasive species, such as Bush Honeysuckle and Garlic Mustard, from stream riparian corridors.

Clean water: It takes all of us.

people walking in mill creek

What you can do:

  • Don't wash your car in the driveway
  • Don't use too many chemicals on your lawn
  • Get your soil tested to apply correct amounts of fertilizer
  • Pick up after your pet
  • Dispose of waste properly
  • Use less water
  • Plant a rain garden
  • Use native plants
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