NYS ELAP

Certified Results

NELAP

Accredited Analysis

Full COC

Chain of Custody

EPA

Approved Methods

35+

Years in Service

24/7

Available

RECENT PROJECTS ★★★★★
Edison, Middlesex County, NJ Multi-day municipal park testing with 11 expedited E. coli and coliform samples per day. Clinton Hill / Bed-Stuy, Brooklyn Metals, minerals and corrosivity testing cleared a federal facility after discoloration complaints. Central Park West, Manhattan Apartment Legionella testing with full culture, speciation and revised reporting. LaGuardia Airport, Terminal B, Queens Three potable-water sampling events at a LaGuardia Airport terminal, with full electronic data deliverables. Sunset Park, Brooklyn Twenty-sample academy lead assessment across two events, each with electronic data deliverables. Carteret, Middlesex County, NJ PWTA source verification established municipal water service for a New Jersey real estate transaction. Bernardsville, Somerset County, NJ Expanded PWTA home-sale panel across raw and treated water; every primary standard passed. West Islip, Suffolk County, NY Microplastics testing evaluated a countertop filter; no particles were detected. Upper East Side, Manhattan Legionella testing found two serogroups across four points, indicating a shared-building source. East Hampton, NY Full-spectrum residential baseline across three points; every parameter passed applicable standards. Governors Island, NY Six-event quarterly potable-water monitoring program for a Governors Island facility. Corona, Queens Four lead-testing campaigns for an educational center, with complete regulatory documentation. Lower Manhattan Transit Hub Pre-opening potable-water clearance for a national restaurant at a Lower Manhattan transit hub. East Village, Manhattan Preschool lead and potability assessment in Lower Manhattan, delivered with EDD for regulatory submission. Far Hills, Somerset County, NJ Private well panel completed for a homeowner water quality assessment. Ossining, Westchester County, NY Expedited Legionella testing at a state correctional housing unit following a positive case. Peapack, Somerset County, NJ New Jersey PWTA-compliant private well panel completed for a real estate transaction. Governors Island, NY Recurring facility potable water monitoring, prior-year sampling event. Jamaica, Queens GSA commissioning panel for new fixtures, including lead, copper and Legionella under AWWA C651. Ridgewood, Queens Ten point-of-use lead assessment, 20 total samples, for a Queens multi-family ownership group. Upper West Side, Manhattan K-8 school lead testing found one elevated fixture while clearing the remaining campus outlets. Bronx, NY Commercial facility water quality testing in the Bronx. Staten Island, NY Full-facility potable water testing for a Staten Island community services organization, revised and reissued report. Union Square / Flatiron, Manhattan Three-point E. coli and coliform monitoring from municipal entry to the roof-level supply. Bridgewater, Somerset County, NJ Expanded PWTA well testing found a PFAS exceedance requiring disclosure before a home sale. Hewitt, Passaic County, NJ 18-compound PFAS panel for a New Jersey Spill Fund-related property assessment. Rego Park, Queens Early childhood center lead testing with full report, invoice, and RegComp package. Fort Totten, Queens, NY Metals, chemistry and bacteria testing across two U.S. Army Reserve building systems. Long Island City, Queens PFAS and lead panel for a Long Island City multi-family property, including a report amendment to add the lead parameter. Morristown, Morris County, NJ Private well bacteria-failure resampling and revised reporting completed before a real estate closing. Flatiron District, Manhattan Three-point E. coli and coliform testing across a commercial building returned clean results. Newark, NJ Charter school lead testing with EDD and Appendix D regulatory reporting. Highbridge, Bronx Potable water testing for a Bronx community development organization's facility. Piscataway, Middlesex County, NJ PWTA well panel completed for a real estate transaction. East 76th Street, Manhattan Upper East Side residential engagement including Legionella analysis alongside the standard potable panel. Clifton, Passaic County, NJ Annual steam-sterilizer feedwater testing for a surgery center under ANSI/AAMI ST108. Lincoln Square, Manhattan Lead testing at 11 early-childhood fixtures, sampled before program hours. Chester, Morris County, NJ PWTA well panel completed for a real estate transaction. Prospect Avenue, Bronx Three lead-testing campaigns for a Bronx Head Start early-childhood program. Bushwick / East Williamsburg, Brooklyn Six-fixture federal office screening for Legionella, bacteria, lead and copper; all samples passed. Kingsbridge, Bronx Preschool potable water and lead assessment in the North Bronx. Liberty Township, Warren County, NJ Private well bacteria-failure resampling and revised reporting completed before closing. Flatiron, Manhattan Potable water commissioning for a Sixth Avenue commercial property. Chelsea, Manhattan Three-point E. coli and coliform testing across a commercial building's vertical water supply. Staten Island, NY Two-point E. coli and coliform testing documented potable-water compliance for a contractor. Upper East Side, Manhattan Legionella panel at a East 70th Street residential property, run alongside the standard potable panel. Upper East Side, Manhattan Multi-unit potable water testing across four residential apartments held by a foreign consulate. Bethpage, Long Island, NY Multi-point potability testing for a food-service facility, with every sample passing. Norwalk, Fairfield County, CT Comprehensive 83-parameter potability and microplastics baseline for whole-house filtration planning. Forest Hills, Queens Point-of-use potable water testing for a Forest Hills cooperative apartment. Staten Island, NY Food service facility potable water testing, repeat engagement across three sampling events. Upper Manhattan Emergency bacteria testing isolated contamination to an unknown foundation source, not the potable tap. Manhattan Valley (Upper West Side), Manhattan Five-point testing cleared the city main and isolated corrosion and sulfide issues within the property. Tribeca, Manhattan Tribeca high-rise baseline covered hot and cold water, with no PFAS or microplastics detected. Greenpoint, Brooklyn Industrial process-water metals testing identified very high nickel in a pre-treatment stream. Saddle River, Bergen County, NJ Private well panel expanded to include gross alpha radiological and PFAS analysis, treated and untreated points. Staten Island, NY Repeat hydrant and water-main clearance testing at two Staten Island construction sites, all clean. South Plainfield, Middlesex County, NJ DI water testing confirmed no bacteria and conductivity within ASTM Type II range. Kips Bay, Manhattan Annual 17-point deionized-water purity testing for a global pharmaceutical facility. Upper East Side, Manhattan Three-point residential metals and corrosivity panel confirmed all results within applicable standards. Upper East Side, Manhattan High-rise apartment lead and potability testing. Staten Island, NY Annual seafood-facility bacteria testing included a clean resample after ice-machine remediation. West Village, Manhattan Large-scale residential lead testing with 58 initial sample points and a 26-sample follow-up. Brewster, Putnam County, NY Eight-point office Legionella screening found elevated L. pneumophila at two matching fixtures. Staten Island, NY Multi-family building lead and potability testing with revised final report. Bay Ridge, Brooklyn Residential potable water analysis for a Brooklyn property. Jackson Heights, Queens Development center lead and potability testing with report and RegComp. Inwood, Manhattan Two-phase cooperative apartment testing paired a 30-parameter panel with a targeted bacterial retest. First Avenue, Manhattan Expedited Legionella testing for a Manhattan construction site's compliance timeline. LaGuardia Airport, Queens Annual aviation wastewater panel covering metals, VOCs, SVOCs, PCBs and 40 PFAS compounds. Brooklyn Heights, Brooklyn Condominium testing identified iron-reducing bacteria as the likely cause of discolored hot water. Flatiron, Manhattan Sixteen-parameter metals and minerals panel for a wellness facility's cold-plunge tub. East Hampton, Long Island, NY Full private well panel, expanded to include radiological analysis. Park Avenue, Manhattan Commercial Legionella testing with complete culture, serogroup identification and revised reporting.

Water Testing Laboratories.

Olympian Water Testing - NELAP accredited analysis, NYS ELAP certified results water testing laboratories serving all property types across New York, New Jersey, and Connecticut. Lead, bacteria, PFAS, Legionella, private wells, and all contaminants.

Certified Laboratory Services
Residential · Commercial · Institutional · Property Management
01 Lead & Heavy Metals Lead · Copper · Arsenic · Iron · Manganese
02 Bacteria & Potability Coliform · E. coli · Potability
03 PFAS & Chemical Analysis PFOA · PFOS · Emerging Contaminants
04 Legionella Testing Faucets · Showers · Pools · Spas
05 Private Well Testing Annual & Pre-Purchase Panels
06 Diagnostic Analysis Multi-Draw · Source Identification
Laboratory Standards & Credentials
NYS ELAP Certified Results
NELAP Accredited Analysis
Full Chain of Custody
EPA-Approved Methods
ISO 11731
Certified Water Testing Experts
35+ Years Experience
Request Your Water Test
Online Now

Speak with a certified water testing expert.

Tell us about your property or water-quality concern. We can help determine the appropriate testing panel, sampling process, and next steps.

NYS ELAP Certified Results
NELAP Accredited Analysis
Full Chain of Custody
EPA-Approved Methods









    Please prove you are human by selecting the tree.

    Elite Industry Standards Fully Insured:  Professional Liability (E&O) General Liability Workers’ Compensation

    Water Testing Laboratory Services

    Certified laboratory water testing

    Olympian Water Testing is a certified and licensed water testing company dedicated to comprehensive water quality and water analysis services across Brooklyn, Queens, Manhattan, the Bronx, Staten Island, and the NYC region. Our team of certified experts and licensed consultant professionals brings deep expertise in lead testing, potability testing, bacteria testing including e coli and total coliform identification, and turbidity evaluation. Beyond standard testing, our laboratories provide specialized analysis for legionella testing, PFAS testing, and microplastics testing to address emerging water quality concerns affecting residential and commercial properties throughout the area. All testing is performed under NYS ELAP certification and NELAP accreditation standards, ensuring defensible results suitable for regulatory requirements and legal purposes.

    What sets our water testing laboratories apart is our commitment to partnering with property owners, management companies, and commercial clients to develop customized testing solutions tailored to your specific needs. Our certified consultant team conducts thorough water analysis with precision and accountability, delivering clear reporting backed by NYS ELAP certified results and NELAP accredited methodology. Whether you need testing for regulatory compliance, real estate due diligence, or routine health and safety assessment, our laboratories perform water testing with the scientific rigor and quality assurance that professionals depend on. As a trusted water testing company serving the region for decades, Olympian Water Testing combines NYS ELAP certified expertise with responsive service to ensure you receive the accurate water quality information necessary to protect residents, employees, and your bottom line.

    Lead · Bacteria · PFAS · Legionella · 1,4-Dioxane · Arsenic · Nitrates · Radon · VOCs · Multi-draw diagnostics · Water quality reports — all services with certified results

    Lead Testing & Heavy Metals Analysis

    Certified lead, copper, arsenic, iron, manganese, and zinc testing at the point of use. NYS ELAP certified results for all property types.

    EPA 200.8
    Bacteria Testing & Potability Analysis

    Total coliform, E. coli, HPC, and potability testing. Required for food businesses, schools, commercial properties, and PWTA compliance.

    SM 9223B
    Legionella Water Testing

    Point-of-use Legionella analysis at showers, faucets, pools, spas, and decorative water features. Certified results for all property types.

    ISO 11731
    PFAS & 1,4-Dioxane Analysis

    PFOA, PFOS, NJ MCL-compliant analysis, NYS 1,4-dioxane 1 ppb comparison. No color, taste, or odor — only certified lab detects them.

    EPA 533/537.1/522
    Private Well Water Testing

    Bacteria, arsenic, nitrates, radon, PFAS, 1,4-dioxane, iron, manganese, pH, hardness, VOCs. Annual and PWTA-compliant panels.

    Multiple Methods
    Multi-Draw Diagnostic Analysis

    Sequential certified sampling identifies contamination source — fixture, branch pipe, or building riser. Full diagnostic report with findings.

    Diagnostic

    Who We Serve

    Water testing laboratory clients

    Property Management Companies

    Ongoing certified testing programs — lead, potability, Legionella, annual water quality analysis for multi-building portfolios.

    Co-ops, Condos & Hi-Rise Buildings

    Building-wide lead testing, Legionella sampling, and certified water quality analysis for residential towers.

    Schools, Daycares & BOCES

    Lead testing under NYS 3Ts. Certified results, compliance reports, and remediation guidance.

    Restaurants & Food Businesses

    DOH compliance water testing. Certified potability and bacteria accepted by NYC DOH, NJ DEP, CT DOH.

    Private Well Homeowners

    Annual and PWTA-compliant analysis for Long Island, NJ, and CT private well properties.

    Tenants, Renters & Landlords

    Unit-level and building-wide certified water testing with regulatory-accepted results.

    Home Buyers & Sellers

    Pre-purchase and pre-listing certified water quality panels. Accepted by real estate attorneys.

    Commercial Properties & Hotels

    Certified water testing programs for commercial buildings, hotels, and multi-use properties in NY, NJ, CT.

    From consultation to certified results

    Step 01
    Consultation

    Speak with our certified water testing consultants to determine the right laboratory testing panel, sampling locations, and compliance requirements for your property.

    Step 02
    Certified On-Site Sampling
    Certified specialists collect samples at your property following EPA-approved protocols with full chain-of-custody documentation from collection through laboratory analysis.
    Step 03
    Laboratory Analysis
    NELAP Accredited Analysis using EPA-approved analytical methods. Results certified by NYS ELAP. Every analyte compared against EPA action levels and state MCLs.
    Step 04
    Certified Reports Delivered
    Water quality reports with EPA and state action level comparisons, plain-language findings, compliance documentation, and expert guidance. Accepted by regulatory agencies and attorneys.

    Speak with a certified water testing laboratory expert

    (212) 461-3879

    Certified water testing laboratory services for New York City (all five boroughs), Westchester County, and Long Island. All property types. All contaminants. Available 24 hours, 365 days.

    Manhattan · Brooklyn · Queens · The Bronx · Staten Island · Westchester · Long Island

    (908) 772-8601

    Certified water testing laboratory services for New Jersey including Bergen, Essex, Morris, Hudson, Union, Middlesex, Monmouth, Somerset, and Hunterdon counties. PWTA compliance available.

    Bergen · Essex · Morris · Hudson · Union · Middlesex · Monmouth · Somerset · Hunterdon

    (203) 780-2022

    Certified water testing laboratory services for Connecticut — Fairfield, New Haven, and Litchfield counties. Residential, commercial, private well, and institutional properties.

    Fairfield County · New Haven County · Litchfield County

    Water testing laboratory questions

    NYS ELAP certified results. NELAP accredited analysis. Every sample processed under full chain-of-custody protocols with EPA-approved analytical methods. EPA-approved analytical methods. Full chain of custody on every sample. 35+ years in service since 1991.
    Yes. Accepted by NYC DOH, NYS DOH, NJ DEP, CT DEEP, EPA programs, local health departments, building attorneys, real estate professionals, and mortgage lenders across New York, New Jersey, and Connecticut.
    New York (all five boroughs, Westchester, Long Island), New Jersey (Bergen, Essex, Morris, Hudson, Union, Middlesex, Monmouth, Somerset, and Hunterdon counties), and Connecticut (Fairfield, New Haven, and Litchfield counties).
    Residential homes, co-ops, condominiums, pre-war buildings, brownstones, multi-family buildings, private wells, commercial buildings, hotels, restaurants, food businesses, schools, daycares, BOCES, hospitals, property management portfolios, and all other property types.

    Blog

    Water testing laboratory resources

    Professional Water Testing Keeps NYC and North NJ Water Concerns Grounded in Data

    Professional Water Testing Keeps NYC and North NJ Water Concerns Grounded in Data

    Professional Water Testing Keeps NYC and North NJ Water Concerns Grounded in Data is a practical question, not just a search phrase. In North NJ,…

    How Better Water Testing Keeps Serious Household Questions Grounded in Reality

    How Better Water Testing Keeps Serious Household Questions Grounded in Reality

    How Better Water Testing Keeps Serious Household Questions Grounded in Reality is a practical question, not just a search phrase. In NYC and North NJ,…

    Why Families in Queens Brooklyn and North NJ Need More Than Visual Reassurance

    Why Families in Queens Brooklyn and North NJ Need More Than Visual Reassurance

    Why Families in Queens Brooklyn and North NJ Need More Than Visual Reassurance is a practical question, not just a search phrase. In Queens and…

    Water Testing Laboratory Service Areas

    NY · NJ · CT

    • NYC Five Boroughs
    • Westchester County
    • Long Island (Nassau & Suffolk)
    • New Jersey Counties
    • CT Fairfield, New Haven, Litchfield
    • All Property Types
    Manhattan
    Brooklyn
    Queens
    The Bronx
    Staten Island
    Westchester
    Long Island
    Bergen County
    Jersey City
    Essex County
    Fairfield CT
    New Haven CT

    Certified Water Testing Laboratories in NY, NJ & CT

    All property types · All contaminants · Certified laboratory analysis with fast, accurate results you can rely on.

    NYS ELAP Certified Results
    NELAP Accredited Analysis
    EPA-Approved Analytical Methods
    Full Chain of Custody
    Certified Water Testing Experts
    Available 24/7, 365 Days
    35+ Years in Service — Since 1991
    Request Water Test →

    Request Your Water Test

    Speak with a certified expert. Response within 24 hours.

    ONLINE NOW









      Please prove you are human by selecting the plane.