Certified Water Labs

Certified Water Labs

Private Well Water Testing in New York

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.

  • Compare local options
  • 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

Suffolk County Water Authority Laboratory

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Suffolk County Water Authority Laboratory (ELAP ID 10311) as a Potable Water certified laboratory at 260 Motor Parkway, Hauppauge, in Suffolk 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 631-563-0259

Service area New YorkSuffolk 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

Certified Laboratories LLC

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Certified Laboratories LLC (ELAP ID 10338) as a Potable Water certified laboratory at 65 Marcus Drive, Melville, in Suffolk 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 516-576-1400

Service area New YorkSuffolk 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

Pace Analytical Services, LLC - Melville, NY

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Pace Analytical Services, LLC - Melville, NY (ELAP ID 10478) as a Potable Water certified laboratory at 575 Broad Hollow Road, Melville, in Suffolk 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 516-370-6000

Service area New YorkSuffolk 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

Suffolk Co Public Env Health Lab

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Suffolk Co Public Env Health Lab (ELAP ID 10528) as a Potable Water certified laboratory at Bldg 487, N County Complex 725 Veterans Highway, Hauppauge, in Suffolk 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 631-853-5528

Service area New YorkSuffolk 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

Enviroscience Consultants, LLC

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Enviroscience Consultants, LLC (ELAP ID 11681) as a Potable Water certified laboratory at 2150 Smithtown Avenue Suite 3, Ronkonkoma, in Suffolk 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 631-580-3191

Service area New YorkSuffolk 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

Long Island Analytical Laboratories, INC

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Long Island Analytical Laboratories, INC (ELAP ID 11693) as a Potable Water certified laboratory at 110 Colin Drive, Holbrook, in Suffolk 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 631-472-3400

Service area New YorkSuffolk 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 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
Source-backed

Grahamsville Laboratory

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Grahamsville Laboratory (ELAP ID 10587) as a Potable Water certified laboratory at 7870 State Route 42, Grahamsville, in Sullivan 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 845-334-7127

Service area New YorkSullivan 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

AG Environmental RSC LLC dba Sullivan County Labs

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists AG Environmental RSC LLC dba Sullivan County Labs (ELAP ID 12081) as a Potable Water certified laboratory at 86 Queen Mountain Road, Ferndale, in Sullivan 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 845-704-8151

Service area New YorkSullivan 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

Town Of Fallsburg Environmental

  • Well Water Testing

New York State ELAP (Environmental Laboratory Approval Program, Wadsworth Center) registry lists Town Of Fallsburg Environmental (ELAP ID 12181) as a Potable Water certified laboratory at 5410 State Route 42, South Fallsburg, in Sullivan 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 845-434-6320

Service area New YorkSullivan 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

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  • What happens next: we route your request to relevant providers for review.
  • We do not verify provider licenses, prices, or reviews yet.
  • Expect providers to follow up directly; nothing is booked automatically.

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 New York listings source-backed?

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

What does this directory do — and not do?

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.

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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