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Private Well Testing


PWTA: Background Information

In March 2001, the New Jersey Private Well Testing Act (PWTA) was signed into law, and its regulations became effective in September 2002. The PWTA is specific to New Jersey and it is a consumer information law that requires sellers, buyers, and lessors of properties with wells to test the untreated groundwater for a variety of water quality parameters, including over 40 parameters of human health concern. Sellers and buyers are required to review the test results prior to closing of title. Landlords are required to test their well water once every five years and provide a copy of the test results to each tenant. The test data is submitted electronically by EMSL Analytical, Inc. (EMSL) to the New Jersey Department of Environmental Protection (NJDEP) for statewide analysis of groundwater quality.

Through a rule published in the New Jersey Register on September 4, 2018, the NJDEP amended the PWTA rules and expanded testing for gross alpha and arsenic and required new testing for uranium for private wells. On March 3, 2019, the amendment also required 1,2,3-trichloropropane (1,2,3-TCP), ethylene dibromide (EDB) and 1,2-dibromo-3-chloropropane (DBCP) testing.

The NJDEP adopted additional amendments to the PWTA rules that became effective on June 1, 2020. Under these rule amendments, starting December 1st, 2021, private wells subject to sale or lease are also required to be tested for three per- and polyfluoroalkyl substances (PFAS) compounds: perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), and perfluorononanoic acid (PFNA).

What are PFOA, PFOS, and PFNA?

PFOA, PFOS, and PFNA are included within a group of man-made PFAS chemicals. According to the United States Environmental Protection Agency (EPA), PFAS have been used in industry and consumer products since the 1940’s with PFOA and PFOS being the most widely used and studied of the PFAS chemicals. Many PFAS break down slowly and can accumulate in people, animals, and the environment over time.

As per the EPA, current scientific research suggests that exposure to high levels of certain PFAS may lead to adverse health effects and more research is underway to better understand the health effects associated with low levels of PFAS exposure over long periods of time. There are a variety of ways that people can be exposed to PFAS chemicals, including drinking water that is sourced from a contaminated private drinking water well.

What are the Maximum Contaminant Levels (MCLs) for PFOA, PFOS, and PFNA?

The NJDEP has adopted the following MCLs for these three contaminants:




0.014 ug/l*


0.013 ug/l*


0.013 ug/l*

*micrograms per liter, ug/l (or parts per billion, ppb)

PWTA Testing Services

EMSL provides laboratory testing services in accordance with the PWTA. In addition, EMSL has dedicated NJ State Certified Samplers and Project Coordinators to assist all customers. Our corporate headquarters resides in Cinnaminson, New Jersey and is equipped to handle projects no matter how big or small the request.

What does EMSL offer with its PWTA services?

  • NJ State Certified Samplers and laboratory analysis
  • Short lead-time on scheduled sampling requests
  • Dedicated Project Coordinators to manage your sampling events
  • Easy-to-read, color-coded, interpretive reports (click here to view Sample Report)
  • State-required notifications and reporting of results
  • All analyses performed in-house – no subcontracting required!

EMSL offers a 5-business day turnaround time (TAT) on PWTA services. Additional charges for faster TAT and weekend service will apply.

What should you know before scheduling a NJ PWTA sampling event with EMSL?

  • Scheduling in advanced is preferred
    • Can schedule up to a year in advance
    • Can schedule Monday through Friday collection times
      (we do not sample on Saturday or Sunday)
    • Payment in full, by credit card, is required to schedule a sampling event

  • Turnaround Time (TAT)
    • Standard turnaround for sample analysis is 5 business days from collection
    • Faster turnaround times may be available with prior coordination and approval by your Project Coordinator and/or the laboratory

 How do you schedule a sampling event?

  • Call 1-888-831-1083 to speak with a Project Coordinator directly
  • Email to connect with a Project Coordinator at your convenience
  • Please have your credit card and project information handy
    (example: project address, lockbox code, pets on-site, etc.)

Can EMSL perform additional water tests that are beyond the NJ PWTA requirements?

  • Yes! Tests can be added to treated water samples only. EMSL can report these additional test results directly to the requestor in a separate laboratory report. This entire transaction will be handled independently from the NJ PWTA sampling request. Payment in full, by credit card, is required from the requestor to schedule a sampling event.

What are EMSL's pre-packaged add-on testing panels in addition to PWTA required parameters?


Metals I

This package adds: Chromium, Copper, Nickel, Uranium, Zinc

 5 Business Day Turnaround

Faster turnaround times may be available with prior coordination and approval by your Project Coordinator and/or the laboratory.



Metals II

This package adds: Antimony, Barium, Beryllium, Cadmium, Selenium, Thallium

5 Business Day Turnaround

Faster turnaround times may be available with prior coordination and approval by your Project Coordinator and/or the laboratory.




This package adds: Chloride, Fluoride, Sulfate

 5 Business Day Turnaround

Faster turnaround times may be available with prior coordination and approval by your Project Coordinator and/or the laboratory.




This package adds: Cyanide

5 Business Day Turnaround

Faster turnaround times may be available with prior coordination and approval by your Project Coordinator and/or the laboratory.




This package adds: Legionella (M343), Cryptosporidium, Giardia
2 Week Turnaround Time Available


Contact a Project Coordinator Today!

Meg Freudenrich              Email:               Phone: 1-888-831-1083

 >> Click here to view our Sample Report


Additional Resources:

Full list of services provided for NJ Private Well Testing Act ( click for details )
Laboratories providing NJ Private Well Testing Act ( click for details )
Atlanta, GA (LAB 07) - NVLAP Lab Code 101048-1Baton Rouge, LA (LAB 25) - NVLAP Lab Code 200375-0Beltsville, MD (LAB 19) - NVLAP Lab Code 200293-0Boston, MA (LAB 13) - NVLAP Lab Code 101147-0Buffalo, NY (LAB 14) - NVLAP Lab Code 200056-0Carle Place, NY (LAB 06) - NVLAP Lab Code 101048-10Charlotte, NC (LAB 41) - NVLAP Lab Code 200841-0Chicago, IL (LAB 26) - NVLAP Lab Code 200399-0Cinnaminson, NJ (LAB List in Description) - NVLAP Lab Code 101048-0Dallas, TX (LAB 11) - NVLAP Lab Code 600111-0Denver, CO (LAB 22) - NVLAP Lab Code 200828-0EMSL Canada - Calgary, AB (LAB 65) - NVLAP Lab Code 500100-0EMSL Canada - Edmonton, AB (LAB 50) - NVLAP Lab Code 600321-0EMSL Canada - Markham, ON (LAB 66) - NVLAP Lab Code 600317-0EMSL Canada - Montreal, QC (LAB 68) - NVLAP Lab Code 201052-0EMSL Canada - Ottawa, ON (LAB 67) - NVLAP Lab Code 201040-0EMSL Canada - Toronto, ON (LAB 55) - NVLAP Lab Code 200877-0EMSL Canada - Vancouver, BC (LAB 69) - NVLAP Lab Code 201068-0Fort Lauderdale, FL (LAB 56) - NVLAP Lab Code 500085-0Houston, TX (LAB 15) - NVLAP Lab Code 102106-0Huntington Beach, CA (LAB 33) - NVLAP Lab Code 101384-0Indianapolis, IN (LAB 16) - NVLAP Lab Code 200188-0Kernersville, NC (LAB 02) - NVLAP Lab Code 102104-0Las Vegas, NV (LAB 31) - NVLAP Lab Code 600140-0Long Island City, NY (LAB 03) - NVLAP Lab Code 101048-9Meriden, CT (LAB 24) - NVLAP Lab Code 200700-0Miami, FL (LAB 17) - NVLAP Lab Code 200204-0Minneapolis, MN (LAB 35) - NVLAP Lab Code 200019-0Ontario, California (San Bernadino County / Inland Empire) (LAB 71) - NVLAP Lab Code 600239-0Orlando, FL (LAB 34) - NVLAP Lab Code 101151-0Phoenix, AZ (LAB 12) - NVLAP Lab Code 200811-0Piscataway, NJ (LAB 05) - NVLAP Lab Code 101048-2Plymouth Meeting, PA (LAB 18) - NVLAP Lab Code 200699-0Raleigh, NC (LAB 29) - NVLAP Lab Code 200671-0Rochester, NY (LAB 53) - NVLAP Lab Code 600183-0San Diego, CA (LAB 43) - NVLAP Lab Code 200855-0San Leandro, CA (LAB 09) - NVLAP Lab Code 101048-3Santa Clara, CA (LAB 47) - NVLAP Lab Code 600318-0Seattle, WA (LAB 51) - NVLAP Lab Code 200613-0South Pasadena, CA (LAB 32) - NVLAP Lab Code 200232-0South Portland, ME (LAB 62) - NVLAP Lab Code 500094-0St. Louis, MO (LAB 39) - NVLAP Lab Code 200742-0Syracuse, NY (LAB 73) - NVLAP Lab Code 600283-0Tampa, FL (LAB 93) - NVLAP Lab Code 600215-0
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