Bush River water quality ALERT: Sewage overflow in Bynum Run For the most up to date information, learn more here: www.harfordcountymd.gov/782/Water-Se...

7 out of the 7 locations within the Gunpowder River tested below 235 MPN (Maximum Probable Number) E. coli in a single-grab sample, in dry conditions, on Friday, July 31st. gunpowderriverkeeper.org/gunpowder-ri... Guidance is to refrain from entering within 48 hours of a 1" rain.

7 out of the 7 locations within the Gunpowder River tested below 235 MPN (Maximal Probable Number) E. coli in a single-grab sample, in dry conditions, on Wednesday, July 15. gunpowderriverkeeper.org/gunpowder-ri... Guidance is to refrain from entering within 48 hours of a 1" rain.

4 out of the 5 locations along the Gunpowder River and Little Gunpowder Falls tested below 235 MPN in a single-grab sample, in dry conditions, on Tuesday, July 14th. gunpowderriverkeeper.org/gunpowder-ri... Safe swim guidance is to refrain from entering waters within 48 hours of a 1" rainfall

Action Needed: Help non-profits like Gunpowder RIVERKEEPER® maintain their access to federal funding by submitting a written comment on proposed changes by the US Office of Management and Budget. Our blogpost has all the details: gunpowderriverkeeper.org/action-alert...

Action Alert: Tell the U.S. Government Office of Management and Budget Your Thoughts on Grant Funding Regulations - Gunpowder RIVERKEEPER®

On July 9th, Gunpowder RIVERKEEPER® took part in a webinar hosted by The Conservation Capacity Project to review the changes proposed by the US Office of Management and Budget regarding litigation, re...

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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...

Gunpowder RIVERKEEPER® and MDNR Remove Invasive Plants on the Bird River - Gunpowder RIVERKEEPER®

Wednesday June 10th, 2026 Gunpowder RIVERKEEPER® staffer Joe Ottomano met with MDNR Natural Resources Biologists Marek Topolski and Mark Lewandowski to paddle down the Bird River and several side cree...

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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...

Gunpowder RIVERKEEPER® Files for Judicial Review of MDE Days Cove Discharge Permit: Soon After Receives Word of Permit Termination, Ceasing Leachate Discharges into the Tidal Basin - Gunpowder RIVERKE...

For Immediate Release: June 4, 2026                 Contact: Theaux M. Le Gardeur (410) 967-3526Gunpowder Riverkeeper, Gunpowderriverkeeper@gmail.com White Marsh, Maryland. – On May 27th, 2026, Gunpow...

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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...

Bacterial Sources in the Gunpowder River - Gunpowder RIVERKEEPER®

Memorial Day through Labor Day, Gunpowder RIVERKEEPER® conducts weekly bacterial water quality monitoring to inform river users of conditions that are more likely to result in bacterial infection. The...

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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-...

MDE Lawsuit Against Ridgely's Reserve Housing Development Settled for $4.1 Million with Gunpowder RIVERKEEPER® as Intervenor and Nets $2 Million Civil Penalty, $2.1 Million for Community Driven Remedi...

Joppa, Maryland. – Today, Gunpowder Riverkeeper in conjunction with the Maryland Department of the Environment (“MDE”) announced a $4.1 million settlement to resolve a lawsuit, instigated by Gunpowder...

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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/

Baltimore County Planning Board Meeting and Public Input Meeting on Data Centers: May 21, 2026 - Gunpowder RIVERKEEPER®

The Baltimore County Council’s recent resolution on data center construction required they solicit public input before they submit their report in October. The public input meeting is coming up! Use t...

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

Update on Gunpowder RIVERKEEPER® pursuit for Tier III Water Quality Monitoring Accreditation - Gunpowder RIVERKEEPER®

Since November 2025, Gunpowder RIVERKEEPER® has been working diligently alongside the Chesapeake Monitoring Cooperative (CMC) who provides technical and logistical support to partners, communities, an...

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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...

2026 Anadromous Fish Spawn Monitoring Round Up - Gunpowder RIVERKEEPER®

Thanks to Maryland Department of Natural Resources (MDNR) Fish Biologists Jeffrey Horne, Marek Topolski, Marissa Ponte, and Shannon Moorhead and all of the volunteers who came out to help us collect s...

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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...

Action Alert: Do you navigate the Gunpowder and Bush Rivers under the Amtrak Bridges? Submit Your Comment to the U.S. Coast Guard by June 11th - Gunpowder RIVERKEEPER®

This just in from the U.S. Coast Guard: All interested parties are notified that the Commander, Coast Guard East District has received a proposal from the AMTRAK with plans for a replacement of  exist...

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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...

Maryland Board of Public Works Receives Over 130 Comments Opposing Days Cove Rubble Landfill Lease Renewal Ahead of May 6th Meeting - Gunpowder RIVERKEEPER®

Of the 134 public comments submitted to the Maryland Board of Public Works website through the public comment form for their meeting May 6th, 2026, all but two oppose the Days Cove Rubble Landfill Lea...

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

Action Alert: Days Cove Rubble Landfill Lease Renewal Before Board of Public Works: May 5th 2026 - Gunpowder RIVERKEEPER®

Gunpowder RIVERKEEPER® is continuing our advocacy to oppose the lease renewal for the Days Cove Rubble Landfill. To support our effort in protecting parkland, the Chesapeake Bay Critical Area, water q...

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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...

Chesapeake Water Watch Publishes 2025 Data Report - Gunpowder RIVERKEEPER®

Gunpowder RIVERKEEPER® was pleased to receive our data report from Rae Terracina, the Chesapeake Water Watch Program Manager at Smithsonian Environmental Research Center. The data, reproduced below, s...

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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...

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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-...

Join us for the Second Mad About Mud Flotilla for the Gunpowder River: Saturday May 2nd - Gunpowder RIVERKEEPER®

Gunpowder RIVERKEEPER® is proud to sponsor the second Flotilla for the Gunpowder with Mad About Mud. Register for the event here and follow along on social media here for updates. Spread the love

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