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Service Interruption: Phone issue ... | last updated: 12/16/2017 - 4:22pm | + read more

Johnson County is experiencing a phone outage today that is impacting some of our offices, however, emergency calls to 911 are not affected.  We are working to resolve the issue as quickly as possible, but do not have an ETA at this time. We will provide an update when the issue has been resolved and we apologize for any inconvenience this may cause our residents.


Phone: 913-715-8500

11811 S. Sunset Drive, Suite 2500, Olathe, Kansas 66061

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Water Quality Lab: About Us

National Certification

Johnson County Wastewater's Water Quality Laboratory was the second lab in the State of Kansas to achieve national certification under the National Environmental Laboratory Accreditation Conference (NELAC).

The Water Quality Laboratory employs sampling strategies, NELAC-accrediated equipment, and techniques perfected over 35 years of continuous operation to accurately determine the chemical properties or constituents of waste and surface waters. We have nine (9) staff members with a total of 159 years of experience in our field.

The Water Quality Laboratory provides analytical and consulting services for:

  • Johnson County Government
  • Private citizens
  • Other municipalities
  • Industries
  • Engineering firms
  • Environmental organizations
  • State and federal agencies