Lead or Metal Concerns
Older service lines, solder, brass components, valves, fixtures, fountains or building plumbing may contribute metals to tap water.
Independent Drinking Water and Water Quality Testing
Water Testing in NYC, Long Island, Westchester, New Jersey & Connecticut
Professional water sampling for lead, copper, manganese, bacteria, coliform, E. coli, PFAS, VOCs, private wells, general chemistry, potability concerns, schools, daycares, homes, apartments and commercial buildings.
- Sampling by environmental professionals
- Qualified laboratory coordination
- Project-specific sampling plans
- Clear written documentation
Independent water sampling and laboratory coordination
Water Testing Selected for the Source and the Question to Be Answered
Angstrom Testing Services LLC provides independent water sampling, laboratory coordination, result interpretation and written reporting for homes, apartments, condominiums, cooperative buildings, schools, daycares, offices, commercial properties, public facilities, private wells and complex building water systems.
Water testing may be used to investigate lead, copper, manganese, arsenic, mercury, bacteria, total coliform, fecal coliform, E. coli, Legionella, volatile organic compounds, PFAS, nitrates, hardness, pH, turbidity, alkalinity, conductivity and other selected parameters.
The sampling plan should reflect the water source, fixture type, plumbing configuration, recent water use, stagnation or flushing requirements, suspected contaminant, laboratory method, reporting limit, facility requirements and intended use of the results.
Sampling protocol matters
A Water Sample Represents a Specific Outlet, Time and Sampling Condition
First-draw, flushed, sequential, source-water and post-treatment samples do not answer the same question. Changing the stagnation period, flow condition, aerator status, sample volume or collection point can change what the result represents.
Review EPA information about lead in drinking water
01
Identify the contaminant or water-quality concern.
02
Select outlets and sources that address the project objective.
03
Define stagnation, flushing and sample-volume requirements.
04
Use appropriate containers, preservatives and holding times.
05
Interpret results only within the completed sampling plan.
Common reasons to request water sampling
When Water Testing May Be Needed
The appropriate parameters and sample locations depend on the building, water source, complaint, facility type and decision that must be made.
Schools and Daycares
Testing may support licensing, school requirements, facility records, corrective-action review or documentation of drinking-water outlets.
Private Wells
Testing may be requested before purchase, after flooding or well work, following vacancy or when the appearance, odor or taste changes.
Discolored Water
Brown, orange, green, blue, black, cloudy or sediment-containing water may warrant targeted physical and chemical testing.
Unusual Taste or Odor
Metallic, sulfur-like, chemical, petroleum-like, earthy or other unusual water complaints may require project-specific analyses.
Bacteria or Sanitary Concerns
Plumbing work, flooding, stagnant water, tank conditions, well problems or suspected contamination may warrant microbiological tests.
Building Reopening
Vacancy, low occupancy, construction or seasonal shutdown can increase water age and alter conditions within building plumbing.
Property or Legal Documentation
Results may support due diligence, facility records, permit review, property management, attorney review or corrective-action planning.
Drinking water, wells and building water systems
Water Testing Services We Provide
Test selections are developed for the suspected source, water system, laboratory method, required reporting limit and project objective.
Lead in Drinking Water
First-draw, flushed, sequential or investigative samples may be collected from faucets, fountains and other drinking-water outlets.
Heavy Metals
Testing may include lead, copper, arsenic, mercury, cadmium, chromium, nickel, iron, manganese and other selected metals.
Total Coliform & E. coli
Microbiological testing may evaluate sanitary conditions, possible fecal contamination, private wells or selected building outlets.
Heterotrophic Plate Count
HPC analysis may provide information about general culturable bacterial populations in tanks, wells, filters and stagnant plumbing.
Legionella Testing
Potable water, showers, faucets, storage tanks, recirculation systems and aerosol-generating devices may be sampled where appropriate.
View Legionella testingPrivate Well Potability
Well testing may include bacteria, nitrates, metals, minerals, general chemistry and location-specific parameters.
PFAS and PFOA Testing
PFAS analysis may be requested for private wells, drinking water, due diligence, source investigations or site-specific concerns.
Volatile Organic Compounds
VOC testing may evaluate solvents, petroleum compounds, industrial chemicals, source-water concerns or possible environmental impacts.
General Chemistry
Parameters may include pH, alkalinity, hardness, conductivity, chloride, sulfate, fluoride, nitrate and total dissolved solids.
Physical Water Quality
Testing may include turbidity, color, odor, sediment, temperature and other physical indicators associated with water complaints.
Facility and Permit Testing
Sampling may support daycare, school, camp, office, public-facility, licensing, permit or facility-record requirements.
Written Reports and Consulting
Documentation may include outlet locations, collection conditions, laboratory findings, interpretation, limitations and recommendations.
Lead, copper and plumbing-related metals
Lead in Drinking Water Testing
Lead detected at a tap may be associated with service-line materials, building plumbing, solder, valves, brass components, fountains, aerators or the fixture itself. A useful investigation identifies what part of the water-delivery system the sample is intended to represent.
Depending on the objective, sampling may include a first-draw sample, a sample collected after a defined flush, multiple sequential sample volumes, comparison outlets or source-water samples.
First-draw
Evaluates water after a defined period of non-use.
Flushed
Evaluates water after a specified flow period.
Sequential
Uses multiple samples to evaluate portions of plumbing.
Investigative
Compares fixtures, floors, zones or source locations.
Facility-specific and source-specific testing
Schools, Daycares, Private Wells and Commercial Properties
Water Testing for Schools and Daycares
Schools, daycares and child-occupied facilities may require lead-in-water testing, bacteria testing, potability analysis or other documentation based on the facility type and jurisdiction.
Services may include outlet inventories, sample-location records, laboratory coordination, result tables and written documentation for facility files or agency review.
Private Well and Potability Testing
Private well testing may be useful before property purchase, after well repairs or flooding, following an extended vacancy or when water appearance, taste, odor or nearby land use creates concern.
The testing scope may include bacteria, nitrates, metals, hardness, pH, minerals, VOCs, PFAS and other location-specific parameters.
Apartment and Commercial Building Complaints
Building investigations may compare outlets, pressure zones, floors, hot- and cold-water systems, storage tanks, treatment devices or plumbing branches.
Complaints involving green, blue, brown, cloudy, metallic or unusual-smelling water may require several complementary parameters rather than a single laboratory test.
Due Diligence and Property Documentation
Sampling may support real estate review, property management, attorney files, facility records, permit applications, water-treatment evaluation or follow-up after corrective work.
The intended use of the results should be defined before sampling so the locations, laboratory methods and written deliverable match the decision to be made.
Microbiological and chemical water analysis
Bacteria, PFAS, VOCs, Metals and General Chemistry
Bacteria, Coliform and E. coli
Microbiological samples may be collected from private wells, potable outlets, tanks, filters, stagnant plumbing or other water systems where sanitary conditions are part of the project objective.
View environmental bacteria testingPFAS and Emerging Contaminants
PFAS sampling requires suitable containers, handling procedures, laboratory methods and reporting limits. Consumer products and sampling materials must be controlled where required by the method.
Review EPA PFAS drinking-water informationVOCs and Petroleum-Related Compounds
VOC analysis may be useful when solvents, petroleum, industrial operations, spills, vapor intrusion or source-water contamination are suspected.
View formaldehyde and VOC servicesGeneral Chemistry and Physical Parameters
pH, alkalinity, hardness, conductivity, turbidity, color, iron, manganese, chloride, sulfate and dissolved solids can help evaluate corrosion, sediment, staining and aesthetic complaints.
Discuss a testing scopeFrom the initial concern to written results
How Professional Water Sampling Works
Review the Concern
We discuss the property, water source, complaint, facility type, affected outlets and intended use of the results.
Select Parameters
Laboratory analyses are selected for the suspected contaminant, source, reporting limit and project objective.
Choose Locations
Faucets, fountains, wells, tanks, fixtures and comparison locations are selected to address the investigation.
Define Conditions
Stagnation, flushing, sample volume, aerator condition and other collection requirements are defined.
Collect Samples
Samples are collected using suitable containers, preservatives, documentation and handling procedures.
Laboratory Analysis
Samples are delivered to a laboratory qualified for the selected water matrix, parameter and analytical method.
Review and Report
Findings are reviewed in relation to the collection conditions, sample locations and purpose of the testing.
Project documentation
What You Receive After Water Testing
The exact deliverable depends on the agreed scope, facility requirements, number of locations and intended use of the results.
View Licensing and Certifications- Sampling plan based on the stated concern
- Professional collection of selected water samples
- Sample outlet and location documentation
- Collection-condition records when included
- Qualified laboratory analytical results
- Organized result tables or summaries
- Interpretive comments when included in the scope
- Written report, letter or facility documentation
- Recommendations for additional evaluation when warranted
Regional water-testing services
Serving NYC, Long Island and Westchester
Water sampling is available for residential, commercial and institutional properties throughout the New York metropolitan area and nearby parts of New Jersey and Connecticut.
Rockville Centre, New York
30 Hempstead AvenueSuite S4
Rockville Centre, NY 11570
Serving Nassau County, Suffolk County, Queens and nearby Long Island communities.
View Rockville Centre locationPark Avenue, Manhattan
1120 Park AvenueSuite 102
New York, NY 10128
Serving Manhattan, Brooklyn, Queens, the Bronx, Staten Island and complex city properties.
View Manhattan locationWhite Plains, New York
200 Mamaroneck AvenueSuite 236
White Plains, NY 10601
Serving White Plains, Westchester County and nearby areas of southern Connecticut.
View White Plains locationRelated environmental testing
Services Commonly Requested With Water Testing
Angstrom articles and building guidance
Related Environmental Testing Resources
Lead Hazards
Understanding Lead Dust Testing
Learn how lead dust samples differ from paint and drinking-water testing and how different lead sources may be investigated.
Read article Building Water SystemsInsulating Cold Water Pipes
Cold-pipe condensation, corrosion, leaks, water damage and the relationship between plumbing conditions and building moisture.
Read article Environmental ResourcesAngstrom Testing Articles and Guides
Browse articles about lead, mold, indoor air quality, chemical concerns, HVAC systems and environmental testing.
Browse all articlesOfficial drinking-water resources
Regulatory and Public-Health Information
Review current federal, state and New York City information about drinking-water standards, laboratory certification, lead, PFAS, private wells and municipal water quality.
EPA
National Drinking-Water Regulations
Federal primary standards and treatment requirements for regulated drinking-water contaminants.
Open EPA resource EPALead and Copper Rule
Federal information about lead and copper monitoring, corrosion control and public-water-system requirements.
Open EPA resource EPAPFAS in Drinking Water
Current federal regulatory, monitoring and technical information concerning PFAS in public drinking-water systems.
Open EPA resource NYSDOHDrinking Water Protection Program
New York State information about public drinking water, private wells, lead and water-quality concerns.
Open NYSDOH resource NYSDOHELAP Laboratory Search
Search New York State environmental laboratories and their approved fields of accreditation.
Search laboratories NYC DEPNYC Drinking-Water Quality Report
New York City information about the municipal water supply, testing programs and annual water-quality findings.
Open NYC DEP resourceWater testing questions
Frequently Asked Questions
What can water testing check for?
Testing may include lead, copper, manganese, arsenic, mercury, other metals, total coliform, fecal coliform, E. coli, Legionella, PFAS, VOCs, nitrates, pH, hardness, alkalinity, conductivity, turbidity, color and other selected parameters.
Can Angstrom test tap water for lead?
Yes. Lead-in-water samples may be collected from homes, apartments, schools, daycares, fountains, commercial buildings and public facilities. The protocol may include first-draw, flushed, sequential or investigative samples.
What is the difference between first-draw and flushed sampling?
A first-draw sample is collected after a defined period of non-use and emphasizes water that remained in contact with the fixture and plumbing. A flushed sample is collected after water has flowed for a specified period and represents a different part of the water-delivery system.
Do you test water for bacteria and E. coli?
Yes. Depending on the project, microbiological testing may include total coliform, fecal coliform, E. coli, Heterotrophic Plate Count, Legionella or other selected analyses.
Can you test private well water?
Yes. Private well testing may include bacteria, nitrates, metals, minerals, general chemistry, VOCs, PFAS and other parameters based on the location, well condition and intended use of the results.
Can you investigate green, blue or brown water?
Yes. Discolored-water investigations may include metals, physical parameters, pH, alkalinity, hardness, corrosion indicators, sediment and comparisons among selected building outlets.
Do you provide school and daycare water testing?
Yes. Sampling may support school, daycare, child-care, camp, facility-record or permit requirements. The scope should be developed for the applicable facility type and jurisdiction.
Do you sell filters or water-treatment systems?
No. Angstrom provides independent water sampling, laboratory coordination, consulting and reporting. We do not sell treatment systems, install filters or perform plumbing repairs.
Does one sample represent the entire property?
A sample represents the selected location and collection condition at the time it was collected. A broader property evaluation requires a sampling plan with suitable outlets, comparison locations and defined collection conditions.
What areas does Angstrom serve?
Angstrom provides water testing in New York City, Long Island, Westchester, southern Connecticut, eastern New Jersey and nearby areas.
Request independent water testing
Tell Us About the Property and Water Concern
Provide the property location, water source, affected outlets, appearance or odor complaint, suspected contaminant, facility requirement, previous results and the documentation you need.
Information That Helps Us Scope the Project
- Property address and property type
- Public water or private well
- Number and type of outlets
- Water color, odor, taste or sediment concern
- Suspected contaminant or requested parameters
- School, daycare, permit or agency requirement
- Previous laboratory results or corrective work
- Requested completion or reporting date
