Proven experience across industries

ALS is a global, national and local leader in water quality analysis, supporting:

• Municipal water utilities
• Private water system operators
• Environmental engineering and consulting firms
• Transportation and industrial facilities
• Healthcare and institutional facilities
• Construction companies and property management
• Educational and recreational facilities

Our ISO/IEC 17025-accredited labs are purpose-built to provide certified, high-capacity testing services for drinking water chemistry and microbiology, using the most sophisticated technologies and ultra-high sensitivity analytical instrumentation.

Comprehensive regulatory compliance testing

We perform testing in accordance with the Safe Drinking Water Act (SDWA) and support compliance with all relevant federal, state and local programs, including:

• EPA National Primary and Secondary Drinking Water Regulations
• Unregulated Contaminant Monitoring Rule (UCMR 5)
• Lead and Copper Rule (LCR & LCRR)
• State-specific requirements (e.g., NJ Private Well Testing Act, NYS DOH, CT DPH)
• EPA Method 537.1, 533, and other PFAS methods
• Public Notification Rule, Total Coliform Rule and Ground Water Rule

Full scope drinking water testing capabilities

Our drinking water analytical services cover the full spectrum of regulated and emerging contaminants that compromise water quality.

General water quality and chemistry

• pH, turbidity, alkalinity, hardness
• Total dissolved solids (TDS), conductivity
• Corrosivity index

Metals and inorganics

• Lead, copper, arsenic, mercury
• Iron, manganese, nitrates/nitrites
• Fluoride, chloride, sulfate

Organic compounds

• Volatile organic compounds (VOCs) including TCE, PCE, benzene
• Synthetic organic compounds (SOCs)
• Disinfection byproducts (DBPs): THMs, HAAs

Microbiological testing

• Total coliform and E. coli
• Heterotrophic plate count (HPC)
• Legionella and other pathogens

Emerging contaminants

• PFAS (per- and polyfluoroalkyl substances)
• 1,4-dioxane, pharmaceuticals and personal care products (PPCPs)

Nutrients and toxicology

• Nitrogen species, phosphorus
• Cyanide, hexavalent chromium

Why ALS? Confidence in compliance.

Regardless of the water system or source, ALS has the knowledge, certifications and capacity to deliver fast, reliable drinking water testing services anywhere in the U.S.

• National reach, local expertise: 15 accredited labs with strong technical expertise
• Regulatory mastery: full alignment with EPA, state and local compliance requirements
• Sampling support: field teams and equipment available for turnkey service
• Rapid turnaround times: reliable, high-throughput operations using automation and digital workflows
• PFAS and emerging contaminant specialists: one of the leading labs in the U.S. for UCMR