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New Hampshire Department of Environmental Services


The Laboratory Services Unit provides analytical testing services of water, wastes, hazardous materials, soils and other chemical matrices for all Divisions of the Department, many other state agencies and for individual citizens.

Our mission is to meet our clients’ needs and requirements, comply with all applicable quality assurance / quality control objectives and comply with all current applicable government standards and regulations.

Our policy is to assist our clients in understanding and interpreting the relevance of their test results by providing educational and outreach material and with direct personal communication.

The NHDES laboratory is a National Environmental Laboratory Accreditation Program (NELAP) accredited laboratory. Twice each year the lab participates in a series of performance evaluations to test its capability to accurately determine many analytical parameters. Based on the accuracy of these performance tests, along with on-site audits of the laboratory processes, the NHDES laboratory has maintained full accreditation for drinking water and wastewater parameters. Please see the full list of all parameters for which the NHDES laboratory is currently accredited.

What We Do

The NHDES laboratory is a full service laboratory offering testing for microbiology, organic chemistry, inorganic chemistry and radiochemistry. The microbiology section checks for bacterial organisms that can be found primarily in water. Total Coliform and E. Coli are the primary bacterial indicators. The organic chemistry section conducts analyses on chemicals containing the element carbon. Volatile Organic Compounds (VOCs) - including the gasoline constituent methyl tertiary butyl ether (MtBE), - other petroleum products, industrial solvents, pesticides and herbicides are common tests. The inorganic chemistry section analyzes for the non-carbon elements and associated compounds found in our environment. These tests include metals such as Arsenic and Lead, nutrient compounds containing Nitrogen and Phosphorus, and physical measurements such as pH and specific conductance. The radiochemistry section conducts analyses of those inorganic elements, primarily Uranium and Radon that are radioactive.

Homeowner Water Testing

The US Environmental Protection Agency and the Department of Environmental Services encourage all New Hampshire homeowners who have their own well to test their water periodically. Our jointly published guide is available on line. Testing for all the recommended parameters is available at the NHDES laboratory on a fee for service basis. Upon completion of each analysis homeowners receive a full report along with an interpretation of test results. In addition, staff is available to provide an unbiased assessment of the water quality and to provide further information on available references and treatment options. Other environmentally specific situations and related laboratory services should be discussed with the laboratory directly.

NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

copyright 2017. State of New Hampshire