ANS protects land and water through policy and advocacy. Check out our current campaigns, letters & testimony, and opportunities to TAKE ACTION on our Conservation Blog:


Preventing Polluted Runoff: ANS works with Montgomery, Prince George’s, and Fairfax Counties, as well as DC, to help them develop and implement their plans for preventing polluted runoff.

In coalition with a broad network of partner organizations, we meet with the environmental agencies in each jurisdiction, advise them on how to meet their Clean Water Act permits, and help them design their programs to best reach neighborhoods and communities. We also meet with and work to influence state- and federal-level decision makers in agencies and the legislatures to improve the laws and policies that govern how development is managed!


Campaigning for Conservation Victories: ANS has a storied history as the oldest conservation organization in the Washington, DC region.

Today, we continue that tradition of advocacy by focusing on protecting the land and water of our local region.

We helped pass the Montgomery County pesticide lawn ban bill, advocated for transit-oriented development around Tyson’s Corner and, most recently, helped lead the coalition to Save Ten Mile Creek. Now we are keeping a close eye on the proposed Purple Line in Montgomery and Prince George’s Counties to ensure that it meets stringent county standards for managing polluted runoff into streams—if it gets built, it should be a Deep Green Purple Line.

ANS also protects land and water through citizen science, and by training people to be advocates and stewards for clean water.

RSS Recent Posts on the Conservation Blog

  • 9 years of data: There’s LIFE in DC streams! December 6, 2018
    Do you live in Washington, DC? Do you visit Rock Creek Park? Maybe you and your dog go splashing through the streams along the trails north of Military Road, or near Peirce Mill, or in Dumbarton Park…well guess what? Those streams are more than a cool urban oasis. They are … Continue reading
    Cathy Wiss
  • Go go electric leaf blowers! D.C. regulation approved; and ANS makes the switch at Woodend Sanctuary December 5, 2018
    In July, ANS members Janet Bogue and David Cottingham testified on behalf of a phase-out of noisy two-cycle leaf blower engines in Washington, D.C. [click here to read their testimony].  And now, good news for the wildlife we share the city with! In a late City Council session yesterday, the … Continue reading
    Eliza Cava
  • What comes next for Dogue Creek? November 19, 2018
    This fight is worth it.Thanks to our community, residents, neighbors, and those who care for nature and believe in good decision-making who sent the message: There should be no development in Fairfax County floodplains! Great work so far—your letters and comments made a difference and led to the developer asking … Continue reading
    Eliza Cava