Water Lab Services

Groton Utilities operates a state-certified drinking water laboratory for the purpose of ensuring the potability of their drinking water, as well as for testing reservoir water quality.

Other water companies have customers that depend on them. To help other water purveyors take care of their communities, we offer a number of services to ensure that they deliver consistent, high-quality water and increase their efficiency and service.

Lab technician performing test


Water Meter Testing
• Flow testing, meter change, in-house testing of all sizes of meters.
• Customized service programs, regulatory documentation provided.

Backflow Inspection
• Inspection and testing

Water Distribution
• Including hydrant maintenance, leak detection, pipe installation and emergency service and system management.


Chemical Feed System Management
• Design, installation and maintenance using certified operators.
• Corrosion control and treatability studies.

Non-Community/Non-Transient (NCNTWS)
• Operation, management, maintenance. Lab reports to insure compliance.

Bulk Water

Consulting Services

Certified Laboratory Services


Certified Laboratory Services

Our lab is certified by the State of Connecticut Department of Public Health and participates in the EPA’s Quality Control/Quality Assurance Program. With every test, we offer pick-up and delivery, volume discounts, documentation, certified reports and complete consulting services.

Tests Offered

  • Microbiological (Bacteria) Analysis
  • Physical Tests (Color, Turbidity, etc.)
  • Chemical Tests (Inorganic & Organic)


If you are a Groton Utilities water customer and have a water quality concern, please call Groton Utilities at 860.446.4000.