NYS ELAP certified water testing and analysis for Long Island homes, private wells, commercial properties, schools, food businesses, and institutions throughout Nassau and Suffolk County — including 1,4-dioxane, PFAS, Bethpage plume, and groundwater analysis.
Dioxane Testing
EPA Method 522
1,4-Dioxane is a likely carcinogen found in Long Island groundwater — particularly in Nassau County. It has no color, taste, or odor. Only certified laboratory analysis detects it. NYS has set a maximum contaminant level of 1 ppb.
PFAS contamination from the Bethpage Community Park plume affects groundwater across parts of Nassau County. PFOA, PFOS, and related compounds are detectable only through certified laboratory analysis.
Suffolk County has hundreds of thousands of private well users. Arsenic, nitrates, iron, manganese, bacteria, and VOCs are common findings. Annual certified well water testing is essential for Suffolk County homeowners.
Lead testing · Potability testing · PFAS & 1,4-dioxane · Bacteria & E. coli · Private well testing · Legionella · Arsenic · Nitrates · VOCs · Water quality reports
Certified lead testing for Long Island homes, co-ops, condominiums, commercial properties, and schools. Lead, copper, arsenic, iron, manganese. On-site point-of-use sampling. No safe level of lead in drinking water.
Certified 1,4-dioxane and PFAS screening for Long Island properties — including PFOA, PFOS, and Bethpage plume compounds. No color, taste, or odor. Only certified laboratory analysis detects them.
Comprehensive well water analysis for Long Island properties — bacteria, arsenic, nitrates, iron, manganese, pH, hardness, VOCs, 1,4-dioxane, and PFAS. Annual and pre-purchase panels available for Nassau and Suffolk County.
Total coliform, E. coli, HPC, and potability testing at the point of use. Required for Long Island food businesses, restaurants, schools, daycares, and commercial properties.
Point-of-use Legionella analysis at showers, faucets, pools, spas, and decorative water features for Long Island residential and commercial properties.
Sequential certified sampling identifies contamination source — fixture, branch pipe, or riser. Copper, iron, manganese, zinc, pH, turbidity. Full water quality reports with findings.
Pre-purchase and pre-listing certified water testing for Long Island homes — including private well properties. Results accepted by real estate attorneys, mortgage lenders, and home inspectors.
Annual well water testing programs for Long Island homeowners on private wells in Nassau and Suffolk County — bacteria, arsenic, nitrates, 1,4-dioxane, PFAS, iron, manganese, and VOCs.
Certified water testing programs for Long Island property management companies. Lead testing, potability, Legionella sampling, and annual water quality reports with full compliance documentation.
DOH compliance water testing for Long Island food businesses and restaurants. Certified potability, bacteria, and E. coli analysis. Nassau and Suffolk County health department accepted results.
Lead testing under New York State's 3Ts program for Long Island schools, daycares, and BOCES facilities. Certified results, compliance reports, and remediation guidance.
Individual unit and building-wide water testing for Long Island tenants, renters, and landlords. Certified results accepted by regulatory agencies and attorneys.
Speak with our water testing consultants to determine appropriate testing panels, sampling locations, and compliance requirements for your Long Island property — including 1,4-dioxane, PFAS, and well water screening.
Certified water testing specialists collect samples at your property following EPA-approved protocols with full chain-of-custody documentation from collection through laboratory analysis.
Analysis by NELAP accredited analysis. Results certified by NYS ELAP. Water quality reports with EPA action level comparisons, NYS MCL comparisons for 1,4-dioxane, and expert findings delivered.
Yes. Certified 1,4-dioxane analysis using EPA Method 522. NYS has set a maximum contaminant level of 1 ppb for 1,4-dioxane. It has no color, taste, or odor — only certified laboratory analysis detects it. Available standalone or as part of a comprehensive Long Island well water panel.
Yes. Certified PFAS screening — PFOA, PFOS, and related compounds — available for Nassau County properties concerned about the Bethpage Community Park plume. NELAP Accredited Analysis using EPA 533 and EPA 537.1.
Yes. Comprehensive well water testing for Long Island private well properties — bacteria, arsenic, nitrates, iron, manganese, pH, hardness, VOCs, 1,4-dioxane, and PFAS. Annual testing panels and pre-purchase well testing available.
Yes. NYS ELAP certified results, NELAP accredited analysis — accepted by Nassau and Suffolk County DOH, NYS DOH, EPA programs, building attorneys, and real estate professionals.
Groundwater contamination is one of the most important environmental and public health concerns affecting Long Island today. Among the most widely discussed and closely monitored
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Private wells, 1,4-dioxane, Bethpage plume, lead testing, PFAS, bacteria, schools, food businesses, and all property types across Nassau and Suffolk County.