OneStop Data Mapper

User Login

You may enter the OneStop Data Mapper as an unregistered guest to view public data by selecting Enter as Guest below.

A login is required to view secure water supply data in the OneStop Data Mapper. To obtain a login, register at the OneStop Data Retrieval/Data Provider Registration Form.  Users already approved for access may use to link below to log in through Data Provider.

Select Login Method

Enter as Guest
(with limited rights)
Approved Data Providers
(to view secure data)
NHDES Employees
(Click "I want to..." and then Sign in) (Use SoNH Azure)

Need help logging in?
Please note that the data presented is under constant revision as new sites or facilities are added. The data may not contain all of the potential or existing sites or facilities. NHDES is not responsible for the use or interpretation of this information. Not intended for legal purposes.

New Hampshire Department of Environmental Services | PO Box 95 | 29 Hazen Drive | Concord, NH  03302-0095
603.271.3503 | TDD Access: Relay NH 1.800.735.2964 | Hours: M-F, 8am-4pm

copyright 2008. State of New Hampshire

The Department of Environmental Services is dedicated to making more environmental information more readily available to more people while maintaining user confidence in the information. The information is the best available according to the procedures and standards of each of the contributing programs and of this system. The different programs are regularly maintaining the information in their databases, and the system is periodically being modified to respond to user needs. As a result, the system may not always provide access to all existing information, and it may occasionally contain unintentional inaccuracies. The Department has made every effort to present the information in a clear and understandable way for a variety of users. We can not be responsible, however, for the misuse or misinterpretation of the information presented by this system.