Our Services

Hudson Water Lab provides NJDEP-certified microbiological testing for recreational bathing waters. We specialize exclusively in pools, spas, and aquatic facilities—delivering accurate, compliant, and timely results you can trust.


Heterotrophic Plate Count (HPC)

A foundational indicator of overall microbial activity and water quality in pool and spa systems. Our HPC testing evaluates general operational hygiene using the NJDEP-approved pour plate methodology, producing consistent and defensible results.

Used for: Pools, spas, aquatic facilities
Method: Pour Plate (NJDEP-approved)

Total Coliform & E. coli

Essential microbiological testing for pools and aquatic facilities. These analyses confirm that water systems are free from sanitary contamination and meet NJDEP regulatory requirements for public bathing waters.

Used for: Pools and aquatic facilities
Purpose: Sanitary quality & regulatory compliance

Pseudomonas aeruginosa

A required test for spas and hot tubs due to the organism’s ability to thrive in warm, aerated water. Testing helps protect bathers from skin and ear infections while ensuring compliance with NJDEP regulations.

Used for: Spas and hot tubs
Purpose: Bather safety & regulatory compliance


Facilities We Support

We work with a wide range of recreational bathing water operators across New Jersey, including:

  • Public & private swimming pools

  • Spas and hot tubs

  • Aquatic centers

  • Health clubs and fitness facilities

  • Hotels and hospitality venues

  • Municipal and community pools

Our services are designed to support both routine compliance testing and ongoing operational needs.


What You Can Expect

Our approach is designed to make compliance straightforward and dependable.

Clear sampling guidance

  • NJDEP-approved methodologies

  • Strict quality assurance & quality control

  • Accurate, defensible results

Reliable turnaround times

  • Straightforward reports

  • Clear communication

  • Support with regulatory questions


Built for Regulatory Confidence

Hudson Water Lab is an NJDEP-certified environmental microbiology laboratory specializing in NPW01 recreational bathing water testing. Our focus on compliance, accuracy, and public health ensures your facility meets regulatory requirements while protecting swimmer health.


Questions About Testing Requirements?

Whether you’re scheduling routine testing or navigating regulatory requirements, we’re here to help. Contact us to discuss your facility, testing needs, or next steps.

Contact Us

Have questions about testing or compliance? Visit our FAQ.