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Worried about your water? We can help!

Since 1974, Prein&Newhof’s environmental laboratory has been performing water testing for drinking water, well water, wastewater, groundwater, leachate, and surface water, including nearly 18,000 microbiology tests each year.



Drinking Water

Prein&Newhof is one of the few laboratories in Michigan specializing in the analysis of drinking water samples. We are committed to delivering high quality, well-documented, and scientifically sound test results. Our goal is to help protect public health by aiding all clients in better understanding the results of their water tests.

We test water and/or soils for lead and copper, other metals, organics, inorganics, microbiology, NPDES/IPP Compliance Monitoring, and PFAS/PFOS. See below for more details on PFAS Water Testing.

Download the Chain of Custody Form

Download the 2024 Drinking Water Testing Guide



Accurate test results begins with proper sampling techniques. We tailor our services to meet your needs and our sampling services follow EGLE Sampling Guidance.

Sample Collection & Drop Off

  • If you choose to collect samples yourself, bottles and sample collection instructions are available at our Laboratory in Grand Rapids and at our Holland and Muskegon offices.
  • Please drop off samples at our Lab by 4:30PM Monday – Thursday, and by 3:00PM on Friday. Holiday hours may vary.
  • To drop off samples at our Holland or Muskegon Locations, please call our Lab to coordinate this service.
  • We can collect and pickup your samples for an additional fee. Call us to set up sampling services or order a self-sampling kit: (616) 364–7600.


If you prefer to collect your samples yourself, please follow these instructions according to the sample type:


PFAS Water Testing

Are you looking to get your water source tested for PFAS? Contact us today at (616) 364–7600 or email our Lab Manager Steve Bylsma.


PFAS Drinking Water Testing:

  • Following EPA 537.1 Methodology for Drinking Water
  • $350 per sample, including trip blank*
  • 10-day turn-around; Expedited turn-around time available for a fee.
  • Optional Sampling Service: $2 per mile round trip ($50 minimum)
  • Capacity to test for 18 PFAS compounds


PFAS Waste Water Testing:

  • Following EPA 537 (modified) Methodology
  • $450 per sample, including trip blank*
  • 10-day turn-around; Expedited turn-around time available for a fee.
  • Optional Sampling Service: $100 per man hour (two people required)
  • Capacity to test for 28 PFAS compounds


Still have questions about PFAS? See more answers on our Clean Water page!

* A trip blank is a sample of analyte-free media (aqueous or soil) collected in the same type of container used for the analytical test. It’s meant to remain unopened with the sample containers throughout the sampling and shipping process.


Reporting Results

Waiting on test results can hold up your project and delay your response time. After testing, we’ll send your results in your requested format and help you understand them along with environmental regulations.

Our average turnaround time is five business days, but high-priority jobs can be done sooner if arranged.



Prein&Newhof’s Laboratory is Drinking Water Certified by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) for microbiology, organic chemistry, inorganic chemistry, and metals, including lead and copper.


Laboratory Service Request Form


Or call us!
(616) 364–7600