Certified Water Labs

Private Well Water Testing in Ulster County

Private well owner running a routine or first-time test for common contaminants (coliform bacteria, nitrate, arsenic) and needing a certified lab that fits their region and well.

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Questions to ask
Next steps

When to contact private well water testing

Contact private well water testing when you need local process, feasibility, and next-step guidance before relying on a decision.

Questions to ask before hiring

Which contaminants should I test for based on my region and well depth?
Is the lab certified for the specific analytes (coliform bacteria, nitrate, arsenic)?
How should I collect and transport the sample to keep it valid?
How often should I retest?

Source-backed Private Well Water Testing listings

Source-backed

Kingston Laboratory - NYC DEP

Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Kingston Laboratory - NYC DEP (ELAP ID 10030) as a Potable Water certified laboratory at 71 Smith Avenue, Kingston, in Ulster County. This directory has not independently verified current certification scope, whether the lab accepts private-well or consumer samples, pricing, turnaround, reviews, or suitability for any mortgage (FHA/VA/USDA) or PFAS/lead analyte-specific testing requirement.

Call 845-334-7112

Service area New YorkUlster County

No reviews collected
Facts limited to cited public sources
Provider approval is not implied
Use the hiring checklist before contacting

View profile Hiring checklist

Source-backed

Kingston Water Department Lab

Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Kingston Water Department Lab (ELAP ID 10160) as a Potable Water certified laboratory at 1442 Sawkill Road, Kingston, in Ulster County. This directory has not independently verified current certification scope, whether the lab accepts private-well or consumer samples, pricing, turnaround, reviews, or suitability for any mortgage (FHA/VA/USDA) or PFAS/lead analyte-specific testing requirement.

Call 845-679-2216

Service area New YorkUlster County

No reviews collected
Facts limited to cited public sources
Provider approval is not implied
Use the hiring checklist before contacting

View profile Hiring checklist

Source-backed

Environmental Labworks INC

Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Environmental Labworks INC (ELAP ID 10824) as a Potable Water certified laboratory at 1348 Route 9w, Marlboro, in Ulster County. This directory has not independently verified current certification scope, whether the lab accepts private-well or consumer samples, pricing, turnaround, reviews, or suitability for any mortgage (FHA/VA/USDA) or PFAS/lead analyte-specific testing requirement.

Call 845-236-7823

Service area New YorkUlster County

No reviews collected
Facts limited to cited public sources
Provider approval is not implied
Use the hiring checklist before contacting

View profile Hiring checklist

Source-backed

Aqua Check Laboratories, INC

Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Aqua Check Laboratories, INC (ELAP ID 11546) as a Potable Water certified laboratory at 3555 Main Street, Stone Ridge, in Ulster County. This directory has not independently verified current certification scope, whether the lab accepts private-well or consumer samples, pricing, turnaround, reviews, or suitability for any mortgage (FHA/VA/USDA) or PFAS/lead analyte-specific testing requirement.

Call 845-687-0420

Service area New YorkUlster County

No reviews collected
Facts limited to cited public sources
Provider approval is not implied
Use the hiring checklist before contacting

View profile Hiring checklist

Buyer guides for private well water testing

How to verify a New York water lab's ELAP certification for the exact test you need
New York's ELAP certification is issued per specific category, analyte, and method — not as one blanket approval. Here is how to use the state's free public search tool to confirm a lab is currently certified for your test before you schedule it.
Selling a well home in Westchester, Suffolk, or Rockland County, NY? The county well-water test law (and why a mail-in kit won't satisfy it)
Westchester, Suffolk, and Rockland Counties each require a private-well water test before a home sale closes — and in each one, a self-collected or mail-in kit sample does not satisfy the law. Here is who tests, who pays, and what the sample-collection rule actually requires.

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We do not verify provider licenses, prices, or reviews yet.
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Certified Water Labs is an independent directory. We do not certify, accredit, endorse, or perform water testing. Laboratory certification is issued by state programs under EPA oversight; always verify a lab's current certification and your required test panel directly with the lab and your state program or lender before scheduling. Content is general information, not legal, financial, or health advice.

Frequently asked questions

Are these Private Well Water Testing in Ulster County listings source-backed?

Only providers with source-backed public records are shown. Invalid and unverified provider rows are excluded from public listing pages.

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What should buyers verify independently?

Verify credentials, current availability, scope, and pricing directly with the provider and the official sources linked on each listing. This site never invents those details.

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