Montgomery County DEP's Earth Month campaign highlights litter's path from streets to streams, appearing on buses and social media throughout April.
Montgomery County DEP invites multi-family property owners, managers, and residents to a free Zoom webinar on waste reduction April 10.
The 2026 Montgomery County Energy Summit runs April 28–29 at the Silver Spring Civic Building, focusing on building performance and decarbonization.
Residents can drop off food scraps for free composting at the Derwood and Olney farmers markets on weekends.
EV Owners of Greater Washington, D.C., host a virtual Q&A for prospective and new EV buyers on April 1, 7:30–8:30 p.m.
DEP hosts a free online webinar April 30, 7–9 p.m., on evaluating stormwater solutions and planning RainScapes for home landscapes.
DEP hosts a Spanish-language workshop on rain gardens and native plants at Brookside Gardens in Wheaton, April 11, 10 a.m.–noon.
DEP-sponsored mending and clothing swap events at Rockville Library April 9 and Germantown Library April 18.
Rockville residents with a working gas leaf blower can trade it for an electric model April 11; registration required, businesses excluded.
Montgomery County Energy Summit runs April 28–29 at Silver Spring Civic Building; covers green building, efficiency, and renewable energy.
GreenFest returns April 26 at BlackRock Center for the Arts in Germantown with battery collection, art projects, and exhibits.
DC Water finished emergency repairs on the Potomac Interceptor as of March 14; long-term rehabilitation and drone inspections are now underway.
Bill 2-26 allows the Montgomery County Green Bank to use fuel-energy tax revenue for a broader range of climate resilience and adaptation projects.
Montgomery County GreenFest returns April 25 at BlackRock Center for the Arts in Germantown, themed around the county's 250th anniversary.
MCDOT is developing a Zero Emission Bus Transition Plan and planning a new zero-emissions bus depot in Montgomery County.
Montgomery County DEP will restrict construction and demolition material acceptance at Shady Grove Transfer Station beginning October 2026.
Council holds public hearing April 14 on a resolution setting the FY27 Water Quality Protection Charge.
Council takes testimony April 14 on a resolution setting FY27 solid waste service charges for Montgomery County.
A separate DHCD-funded HEECAP Homes grant offers $500K across 2–3 awards to nonprofits retrofitting income-eligible homes.
DEP and OGM are accepting applications from nonprofits for up to $1M in home energy efficiency and electrification retrofit grants.