We are now monitoring the Tidal Gunpowder to provide information about E. coli levels in the River. 7 out of the 7 locations tested below 235 MPN (Maximal Probable Number) E. coli in a single-grab sample, in wet conditions, July 08. gunpowderriverkeeper.org/gunpowder-ri...

2 out of the 5 locations along the Gunpowder River and Little Gunpowder Falls tested below 235 MPN (Maximal Probable Number) in a single-grab sample, in wet conditions, on Tuesday, July 7th. gunpowderriverkeeper.org/gunpowder-ri... Guidance is to not enter water within 48 hours of a 1" rainfall.

Four out of the five locations along the Gunpowder River and Little Gunpowder Falls tested below 235 MPN (Maximal Probable Number) in a single-grab sample, in wet conditions, on Tuesday, June 16. gunpowderriverkeeper.org/gunpowder-ri...

Gunpowder RIVERKEEPER® was thrilled to take part in this year's Snakes on the Dundee Snakehead Tournament and Derby. Check out our blogpost for a recap of the event and information about Invasive Fishes of the Chesapeake: gunpowderriverkeeper.org/gunpowder-ri...

Gunpowder RIVERKEEPER® is pleased to have been able to provide capacity to MDNR to help remove invasive species from the Gunpowder Watershed. Check out our blogpost for more details about Trapa Natans: gunpowderriverkeeper.org/gunpowder-ri...

Four out of the five locations along the Gunpowder River and Little Gunpowder Falls tested below 235 MPN in a single-grab sample, in dry conditions, on June 9. gunpowderriverkeeper.org/gunpowder-ri... Guidance is to not enter water within 48 hours of a 1" rainfall event such as we had June 10.

Snakes on the Dundee V: Snakehead Derby and Tournament This Saturday June 13th: Register here: go.activecalendar.com/doit-md/even...

Good News from the Gunpowder! Gunpowder RIVERKEEPER® files for judicial review of MDE Days Cove Discharge Permit, receives notice of permit termination! gunpowderriverkeeper.org/gunpowder-ri...

Four out of the five locations along the Gunpowder River and Little Gunpowder Falls tested below 235 MPN (Maximal Probable Number) in a single-grab sample, in dry conditions, on Tuesday, June 2. gunpowderriverkeeper.org/gunpowder-ri...

Curious about our bacterial monitoring data? Check out our blogpost about the causes of high bacterial levels in the Gunpowder Watershed and for what you can do to help protect the environment and yourself when recreating on the water: gunpowderriverkeeper.org/bacterial-so...

Four out of the locations along the Gunpowder River and Little Gunpowder Falls tested above 235 MPN (Maximal Probable Number) in a single-grab sample, in wet conditions, on Tuesday, May 26. gunpowderriverkeeper.org/gunpowder-ri...

For Immediate Release: Ridgely's Reserve Lawsuit Settled! Check out our blogpost for the full press release: gunpowderriverkeeper.org/mde-lawsuit-...

Baltimore County Public Meeting Alert: Tell them what you think about Data Centers on May 21st, 2026. Our blog post has instructions for signing up to attend or to speak: www.gunpowderriverkeeper.org/baltimore-county-planning-board-meeting-and-public-input-meeting-on-data-centers-may-21-2026/

Our journey toward Tier 3 Water Quality Monitoring Accreditation continues: gunpowderriverkeeper.org/update-on-gu...

Gunpowder RIVERKEEPER®'s spring of Anadromous Fish Spawn Monitoring has come to a close. Thanks to everyone at MDNR who helped coordinate with us and all of our volunteers who came out to collect water samples. Here's the full recap on our blogpost: gunpowderriverkeeper.org/2026-anadrom...

Action Alert: Tell the Coast Guard how you boat under the Amtrak Bridges over the Gunpowder and Bush Rivers. Submit your comment by June 11th to ensure your voice is heard before the construction commences: gunpowderriverkeeper.org/action-alert...

Mid-May Updates and Opportunities: Click the link to read our latest email blast with updates, activities this weekend, and a Call to Action for boaters on the Bush and Gunpowder Rivers: gunpowderriverkeeper.dm.networkforgood.com/emails/sprin...

Thanks to everyone who wrote in to voice the community concerns over the Days Cove Rubble Landfill's Lease Renewal. Our blogpost has all the details: gunpowderriverkeeper.org/maryland-boa...

Action Alert: Tell the Board of Public Works that we oppose the Days Cove Rubble Landfill Lease as-written: gunpowderriverkeeper.org/action-alert...

Thanks to Rae Terracina and Smithsonian Environmental Research Center for publishing a data report card on the Tidal Gunpowder and the Chesapeake Bay. Gunpowder RIVERKEEPER® is pleased to be able to continue to support Chesapeake Water Watch gunpowderriverkeeper.org/chesapeake-w...

Save the date for this year's Mad About Mud Flotilla for the Gunpowder: Rescheduled to Saturday May 16, 2026 at Mariner Point Park: gunpowderriverkeeper.org/join-us-for-...

Next weekend, join @gnpwdrriverkeeper.bsky.social & Mad About Mud for the 2nd Annual Flotilla for the Gunpowder River! Come together with fellow water enthusiasts to celebrate our progress & show your support for the future of the Gunpowder River. More info & RSVP: www.madaboutmud.org/events

Attention Baltimore County Residents: Rain Barrel Pre-sale happening now! Check out the County's website for more information: www.baltimorecountymd.gov/departments/... or go straight to the sale page: rainbarrel.ca/baltimorecou...

Save the date for this year's Mad About Mud Flotilla for the Gunpowder: Saturday May 2, 2026 at Mariner Point Park gunpowderriverkeeper.org/join-us-for-...

Gunpowder RIVERKEEPER® is pleased to be participating in another Citizen Science program through the Izaak Walton League of America. Check out our blogpost for details on how you can help protect our local waterways by testing for Nitrates: gunpowderriverkeeper.org/gunpowder-ri...

Check out everything Gunpowder RIVERKEEPER® has been up to this season in the latest edition of our newsletter. Click the link to read the letter and don't forget to sign up for our mailing list so you never miss an update: gunpowderriverkeeper.dm.networkforgood.com/emails/sprin...

Gunpowder RIVERKEEPER® is proud to support Maryland Department of Natural Resources Fisheries by coordinating volunteers and providing capacity for anadromous fish spawn surveying. Check out our blog post for all the details and links to sign up to help: gunpowderriverkeeper.org/gunpowder-ri...

Thanks to Izaak Walton League of America and Patapsco Heritage Greenway for hosting Benthic Macroinvertebrate training that Gunpowder RIVERKEEPER® was thrilled join. Check out our blogpost for all the details: gunpowderriverkeeper.org/gunpowder-ri...

Have a great time at the St. Pat's festivities, and help with the #cleanup. #Litter makes its way into our waterways, carrying bacteria which can harm human and wildlife health. It's not #luck -- we all need to pitch in for #CleanWater.

Gunpowder RIVERKEEPER® is pleased to announce that we have completed the next step toward tier 3 water quality monitoring accreditation! Check out our blogpost for the details: gunpowderriverkeeper.org/gunpowder-ri...

If Tuesday winter weathers again it will be a good opportunity to monitor road salts in the aftermath. Check out our infographic for sampling and data submission directions. Stop by Sparks Bank Nature Center for a Salt Watch Kit or request your own: docs.google.com/forms/d/e/1F...

Hi Torrey C. Brown trail folks! Here is the view down-trail from Sparks: the snow is almost gone but there are still some wet and tricky spots. Looking forward to seeing everyone on the trail (not that we didn't like ya'll who were skiing, snowshoeing, or sled-dogging...)!

Gunpowder RIVERKEEPER® is thrilled to continue our work with Skidmore College students Sophie Zuckman, Charlie Movius, and Liv Mollo. Check out our blogpost for details about their new project: gunpowderriverkeeper.org/gunpowder-ri...

Let your voice be heard! Mark your calendars for next month's public meeting on Baltimore County's PCB Track Down Efforts. Gunpowder RIVERKEEPER® is proud to have brought the litigation that resulted in this action to protect our waterways gunpowderriverkeeper.org/epa-mde-and-...

Thanks to Gunpowder RIVERKEEPER® Theaux Le Gardeur for submitting comments on the EPA's Proposed Rule Change for Section 401, which allows states to regulate their waters more strictly than the federal government. Check out our blogpost: gunpowderriverkeeper.org/gunpowder-ri...

Thanks to Tim Wheeler and The Bay Journal for their continued coverage of PCBs in the Gunpowder Watershed. Check out our blogpost for a summary of and links to the most recent article: gunpowderriverkeeper.org/tim-wheeler-...

Thanks to Jeremy Cox at the Bay Journal for his article covering the approaches three Maryland counties are taking to regulate data centers. Check out our blogpost for more information and a link to the article: gunpowderriverkeeper.org/the-bay-jour...

There are just. few weeks left to apply for the Terry Newendorp Environmental Scholarship! Get your application in before March 15th: gunpowderriverkeeper.org/terry-newend...

Thanks to senators Chris Van Hollen and Angela Alsobrooks for their work securing funding for projects across Maryland. Our blogpost has a write-up of their February 6th press release: gunpowderriverkeeper.org/senators-van...

Thanks to Tim Wheeler and the Bay Journal for their article covering the latest on the Days Cove Landfill discharge permit and lease. Our blogpost for all the details gunpowderriverkeeper.org/the-bay-jour...

Thanks to Sapna Bansil and Baltimore Banner for their article covering the Baltimore County Council's data center moratorium. Our blogpost has all the details: gunpowderriverkeeper.org/baltimore-ba...

Thanks to Chichedo Duru for her continued work with Gunpowder RIVERKEEPER® and Morgan State to characterize our waters. Our blogpost has the details. gunpowderriverkeeper.org/gunpowder-ri...

Check out everything Gunpowder RIVERKEEPER® has been up to this season in the latest edition of our newsletter. Click the link to read the letter and don't forget to sign up for our mailing list so you never miss an update: gunpowderriverkeeper.dm.networkforgood.com/emails/2025-...

Thanks to Travis Loop at Waterloop for his podcast episode covering three legal battles undertaken by local waterkeepers in their efforts to protect their watersheds and the Chesapeake Bay. Check out our blogpost for a summary and for links: gunpowderriverkeeper.org/gunpowder-ri...

Thanks to Christine Condon at Maryland Matters for her article analyzing the proposed power plant on Perryman Peninsula. Check out our blogpost for a summary and link to the full article: gunpowderriverkeeper.org/maryland-mat...

Thanks to Waterkeepers Chesapeake for their "From the Rivers to the Bay" video featuring many local waterkeepers. Check out their video and our blogpost for links for their website gunpowderriverkeeper.org/waterkeepers...

In case you missed it: Theaux Le Gardeur provided testimony to the EPA regarding their proposed definition change to the Waters of the United States. Check out our blogpost with the details and testimony: gunpowderriverkeeper.org/gunpowder-ri...

In case you missed it, here is the letter WATERKEEPER's Chesapeake sent to inform the EPA's decision making on the proposed Waters of the United States Definition Change including testimony from Gunpowder RIVERKEEPER®: gunpowderriverkeeper.org/gunpowder-ri...

In case you missed it, here's the letter Gunpowder RIVERKEEPER® co-wrote to Maryland's Board of Public Works before their last meeting on January 7th, 2026: gunpowderriverkeeper.org/gunpowder-ri...