Certified Water Testing Laboratory Experts · Brooklyn · Since 1991

Water Testing & Analysis in Brooklyn.

NYS ELAP certified water testing and analysis for Brooklyn property owners, co-op boards, property managers, food businesses, schools, and institutions.

(212) 461-3879

(908) 772-8601

(203) 780-2022

Results by

NYS ELAP Certified Lab

Analysis by

NELAP Accredited Lab

Full

Chain of Custody

EPA

Approved Methods

Certified

Water Testing Experts

35+

Years of Service

Since 1991

Serving Brooklyn

Water Testing & Analysis Services

Certified Laboratory Water Testing in Brooklyn

Lead testing · Potability testing · Legionella testing · PFAS analysis · Bacteria & E. coli · Total coliform · Turbidity · VOC analysis · Water quality reports · Certified results

Lead Testing & Heavy Metals Analysis

Certified lead testing for Brooklyn brownstones, pre-war buildings, co-ops, condominiums, and commercial properties. Lead, copper, arsenic, iron, manganese. On-site sampling at the point of use. No safe level of lead in drinking water exists.

EPA Method 200.8

Analytical Method

EPA Method 200.8 — ICP-MS

Results Certified by

NYS ELAP Certified Laboratory

Analysis by

NELAP Accredited Laboratory

Bacteria Testing & Potability Analysis

Total coliform, E. coli, HPC, and potability testing at the point of use. Required for food businesses, restaurants, schools, daycares, and commercial properties with NYC DOH compliance requirements throughout Brooklyn.

SM 9223B

Analytical Method

SM 9223B — Colilert

Parameters

Total coliform · E. coli · HPC

Analysis by

NELAP Accredited Laboratory

Legionella Water Testing

Point-of-use Legionella analysis at showers, faucets, pools, spas, and decorative water features for Brooklyn residential and commercial properties. Certified results with complete documentation.

ISO 11731

Analytical Method

ISO 11731 — Culture method

Sample Points

Showers · Faucets · Pools · Spas · Water features

Analysis by

NELAP Accredited Laboratory

PFAS & Chemical Contaminant Analysis

Comprehensive PFAS screening — PFOA, PFOS, and related compounds. No color, taste, or odor at any concentration. Only certified laboratory analysis detects them. Available standalone or as part of a full panel.

EPA 533 / 537.1

Analytical Method

EPA 533 · EPA 537.1

Compounds

PFOA · PFOS · GenX · 40+ PFAS compounds

Analysis by

NELAP Accredited Laboratory

Corrosion, Turbidity & Water Quality Analysis

Copper, iron, manganese, zinc, pH, turbidity, hardness. Full water quality reports identifying the source of discoloration, metallic taste, scaling, and corrosion in Brooklyn building plumbing systems.

EPA 200.8

Parameters

Cu · Fe · Mn · Zn · pH · Turbidity · Hardness

Deliverable

Full water quality report with findings

Analysis by

NELAP Accredited Laboratory

Multi-Draw Diagnostic Water Analysis

Sequential certified sampling from the same fixture at timed intervals. Identifies contamination source — fixture, branch pipe, unit riser, or building riser. Diagnostic reports included with all results.

Diagnostic

Method

Sequential timed draws from single fixture

Identifies

Fixture · Branch pipe · Unit riser · Building riser

Deliverable

Diagnostic report with source determination

Commercial & Institutional Water Testing

Brooklyn commercial water testing clients

Property Management Companies

Certified water testing programs for Brooklyn property management companies. Lead, potability, Legionella, and annual water quality reports.

Restaurants & Food Businesses

NYC DOH and EPA compliance testing for Brooklyn food businesses, restaurants, and food packaging facilities.

Schools, Daycares & BOCES

Lead testing under New York State's 3Ts program. NYS DOH compliant sampling, certified results, and remediation guidance.

Brownstones & Pre-War Buildings

Lead testing, potability analysis, and water quality reports for Brooklyn's historic building stock across all neighborhoods.

Co-ops, Condominiums & Hi-Rise Buildings

Building-wide lead testing, Legionella sampling, and certified water quality analysis for co-op boards and condo associations.

Home Buyers & Sellers

Pre-purchase and pre-listing certified water testing for Brooklyn homes. Results accepted by attorneys and mortgage lenders.

From consultation to certified results

01

Consultation

Speak with our water testing consultants to determine appropriate testing panels, sampling locations, and compliance requirements for your Brooklyn property or facility.

02

Certified On-Site Sampling

Certified water testing specialists collect samples at your property following EPA-approved protocols with full chain-of-custody documentation from collection through laboratory analysis.

03

Laboratory Analysis & Reports

Analysis by NELAP accredited analysis. Results certified by NYS ELAP. Water quality reports with EPA action level comparisons and expert findings delivered.

FAQ

Frequently asked questions

Why does brown water sometimes appear in Brooklyn buildings

Brown water in Brooklyn buildings is typically caused by sediment or internal buildup that becomes dislodged within plumbing systems. This can occur due to changes in water flow, pressure shifts, hydrant flushing, or nearby construction activity. In older buildings, pipes may contain accumulated material that remains stable under normal conditions but can be disturbed when system dynamics change.

While brown water is often temporary and clears after running the tap, recurring issues may indicate underlying plumbing conditions that require further evaluation. Because visual appearance alone cannot determine the cause, certified water testing laboratories analyze samples to identify whether sediment, corrosion, or other factors are contributing to the issue.

Professional water testing consultants use these results to assess whether the condition is isolated or related to broader building infrastructure.

Brooklyn tap water is generally safe for drinking and cooking when it leaves the municipal distribution system. New York City sources its water from protected reservoirs and treats it to meet strict safety standards before it reaches residential areas.

However, water quality can change once it enters a building’s internal plumbing system. Many Brooklyn properties, including brownstones, co-op apartments, and rental buildings, may have infrastructure that influences water conditions at the point of use. Factors such as corrosion, aging pipes, and system design can affect water before it reaches the tap.

For this reason, professional water testing provides a more accurate understanding of conditions within a specific building or apartment. Certified laboratory analysis ensures that water quality is evaluated based on actual usage conditions rather than general system-wide data.

The frequency of water testing in Brooklyn apartments depends on building age, plumbing condition, and occupancy patterns. In general, periodic testing is recommended to monitor water conditions and identify any changes over time.

Older buildings with aging infrastructure or mixed plumbing materials may benefit from more frequent testing, as these systems are more likely to influence water quality. Testing is also advisable following plumbing repairs, renovations, or noticeable changes in water appearance or taste.

Professional water testing consultants often recommend establishing a routine schedule tailored to the building’s characteristics. Certified laboratory analysis provides consistent data that helps track trends and supports proactive maintenance decisions.

Regular testing ensures that water quality is monitored accurately and helps maintain confidence in drinking water conditions within the building.

Yes, building plumbing can influence water quality even when the city supply entering the building meets all safety standards. Once water transitions into a property’s internal plumbing system, it interacts with pipes, fittings, and fixtures that vary in material and condition.

In Brooklyn buildings, particularly older properties, plumbing systems may include components that contribute to corrosion or internal buildup over time. These conditions can affect the presence of metals, sediment, or other factors within the water.

Because each building has a unique plumbing configuration, water quality can vary between units and floors. Certified water testing laboratories analyze samples from specific fixtures to determine how internal systems are affecting water conditions.

Professional consultants interpret these results to provide a clear understanding of whether any issues are related to building infrastructure rather than the municipal supply.

Professional water testing laboratories analyze a wide range of contaminants to provide a comprehensive assessment of drinking water quality. These typically include metals such as lead and copper, which are often associated with plumbing systems and corrosion.

Laboratories also test for microbial indicators, including heterotrophic plate count, total coliform, and E. coli, to evaluate the presence of bacteria within the system. In addition, analysis may include emerging contaminants such as PFAS, which require specialized testing methods due to their low concentration levels.

Other parameters, such as sediment and overall water composition, are evaluated to understand physical and chemical conditions. Certified laboratories use advanced instrumentation and standardized procedures to ensure accurate results.

Professional water testing consultants review laboratory reports and provide guidance based on the findings, helping property owners and residents understand water conditions and determine appropriate next steps.

Blog

Bronx water testing resources

Why Brooklyn Brownstones Often Experience Water Quality Problems

Why Brooklyn Brownstones Often Experience Water Quality Problems

Introduction Brooklyn brownstones are among the most iconic residential properties in New York City, known for their historic charm, architectural detail, and cultural significance. However,…

Brooklyn Service Area

Certified water testing across Brooklyn

  • Commercial & Industrial Properties
  • Schools, Daycares & BOCES
  • Condominiums & Co-ops
  • Apartments & Residential Buildings
  • Home Buyers & Sellers
  • Brownstones & Pre-War Buildings
Park Slope Williamsburg Bed-Stuy Crown Heights
Carroll Gardens DUMBO Brooklyn Heights Fort Greene
Cobble Hill Prospect Heights Flatbush Bushwick
Greenpoint Red Hook Sunset Park Bay Ridge
Bensonhurst Sheepshead Bay Canarsie Borough Park