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Will Joiner Micro Labs tell me what treatment system I need?

No. Joiner Micro Labs performs laboratory analysis and reports the findings from the submitted sample. The laboratory does not diagnose water-quality problems, interpret results, or recommend treatment systems.

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Does Joiner Micro Labs come to my Manassas property to collect samples?

No. Customers collect and submit their own samples using the appropriate containers and instructions provided for the selected test. For Manassas customers, samples can be submitted through the local Manassas/Bristow…

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Where can I drop off a water sample in Manassas?

Joiner Micro Labs has a drop-off location at The UPS Store, 9994 Sowder Village Square in Manassas. Samples are picked up at 9:30 a.m. on Tuesday, Wednesday, and Thursday.

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What if a Manassas-area property cannot connect to public water?

For new homes in Prince William County that cannot connect to public water and sewer, the county directs property owners to the Prince William Health District for private well and…

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Can I test the water when buying a Manassas home with a private well?

Yes. Private well testing is commonly part of real estate transactions. Joiner Micro Labs notes that most contracts involving private wells require a satisfactory coliform bacteriological test before settlement, although…

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When should I retest my well outside of routine testing?

Consider testing after a broken well cap, damaged water line, well repairs, flooding, or a noticeable change in the water’s color or taste. These conditions are among the reasons Joiner…

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How often should I test a private well in Manassas?

Joiner Micro Labs notes that the EPA recommends testing private well water at least once a year, including testing for coliform bacteria and nitrates. Additional testing may be appropriate when…

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What should a Manassas private well be tested for?

Routine testing commonly includes total coliform bacteria and nitrate-nitrite. Depending on the property and reason for testing, additional analyses may include lead, pH, hardness, iron, manganese, sulfates, and total dissolved…

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Do I need private water testing if my Manassas home uses city water?

The City of Manassas routinely monitors its municipal drinking water system for regulatory compliance. Additional testing at an individual property may still be considered when there is a specific concern…

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Does Manassas have both public water and private wells?

Yes. The City of Manassas operates a municipal drinking water system, but private wells are also used by some properties in Manassas and surrounding Prince William County. Virginia Cooperative Extension…

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Joiner Micro Laboratories, Inc
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© 2026 Joiner Micro Labs. All Rights Reserved.     Privacy Policy     Terms & Conditions    Accreditation     Privacy Settings

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Company
  • About
  • Resources
  • Forms
  • Contact Us
  • Realtors
  • Drop Offs
Testing
  • What to Test
  • Choose Your Test
  • Private Water Testing
  • Public Water Testing
  • Wastewater Testing
Contact Us
  • icon-location_on

    77 West Lee Street #202
    Warrenton, VA  20186

  • icon-call

    540-347-7212

  • icon-mail

    lab@joinermicrolab.com

Office Hours

Mon-Fri - 9:00am-5:00pm
Sat,Sun - CLOSED

© 2026 Joiner Micro Labs. All Rights Reserved.
Privacy Policy      Terms & Conditions     Accreditation     Privacy Settings
Website by Johnny Flash Productions(opens in new tab)

C12 (opens in new tab)