MC311 Logo
Call 311 To Get It Done!
For Emergency: 911 | Out of County: 240-777-0311


Enter an English language keyword to search the 311 web site:
  Results will be returned in English language

All Services

Request Data on Stream Monitoring
If you're looking for specific types of biological monitoring data, visit the biological monitoring pages on DEP's Web site (see URLs provided) to view the specific page for the type of organism you are interested in. Review the data fields that DEP gathers for that organism. This will help you to make specific data requests. If you're interested in obtaining data, please email us: and provide the following information: Name, organization (if applicable), phone number, and/or email address, type of data requested, time frame requested, explanation for use of data (helps to personalize the data request), preferred method of data retrieval (email, CD by mail, FTP, pick up CD or materials from DEP offices).
Find more information from the following link(s):
  • Monitoring Our Waters

  • To speak with a Customer Service Representative, please call 311 during business hours.