Friends of Sligo Creek
 PO Box 11572
 Takoma Park, MD

Bruce Sidwell, Advocacy Committe chair, has written a letter to the Montgomery County Council request to full restoration of the Parks Dept Capital Improvements Plan so it can improve the health of County Streams and fulfill Clean Water permit commitments. - posted Feb 12
have been added to our News Articles page.
  • Culling Deer Population
  • Sewer Overflows Down
  • Threat of Many Small Drains to Water Quality
  • Julius Kassovic on the Zen of Photographing One Creek Over and Over
- posted Feb 12
  • New Board Member Delia Aguilar
  • More Progress on McLaughlin Woods
  • Our Annual Open House Mar. 22
  • A 1940 Survey of Sligo Plants
- posted Feb 7
Lenore Boulet, Andrew Marcus, Michael Wilpers and Doug Stephens share their photos of the recent snow event as seen in Sligo.
- updated Jan 28
Imagine Sligo Creek Park 100 years ago and you may not envision bogs and swamps or a floodplain instead of a Parkway or no English Ivy but Japanese honeysuckle that was already "common everywhere." These are among many fascinating features of an earlier Sligo one can glean from “A Flora of the Sligo Valley,” completed in 1940 by local botanist Charles Lester Floyd. His Flora documents about 400 native and introduced species from his own observations and from historical collections dating back to the 1870s. Natural History chair Michael Wilpers stumbled across this fabulous resource at the Takoma Park Library. It's now on our website, thanks to webmaster Clair Garman, with indexes to the plant families and hot links to the relevant pages of the Flora.
- posted Jan 23
Lola Copinga has reported cloudy water in Sligo coming from construction at the Washington Adventist Hospital. A report has been sent to MC Dept of Env. who sent an investigator who has added his report.
- updated Jan 6
Pat Ratkowski, our Water Quality chair, post the amount of fecal bacteria present at several different locations in Sligo Creek for December 2015.
- posted Dec 23
Please help the Detergent Detectives! Pat Ratkowski and the FOSC Outfall Monitoring Team continue to try to solve suds [pollution] mysteries near Maple Ave. If you see pollution there, please send a quick report and photo via the Water WatchDog email address ReportPollution at Another entry in the ongoing documentation of What our members are saying.
- posted Dec 22
Pat Ratkowski supplies the latest monitoring of four outfalls along Sligo
- posted Dec 22
Pat Ratkowski, in his latest blog, discusses the cause and effect of water main breaks in the Sligo watershed. Another entry in the ongoing documentation of What our members are saying.
- posted Dec 10
The Washington Suburban Sanitary Commission has filed a notice in the Federal Register to seek a seven-year extension on the consent decree it signed in 2005 with the federal government, the State of Maryland, and several environmental groups, including Friends of Sligo Creek. - posted Dec 11
Pat Ratkowski documents the FOSC Outfall Monitoring Team seeking to solve suds near Maple Ave. Another entry in the ongoing documentation of What our members are saying.
- posted Dec 10
Pat Ratkowski documents the beginning of his monitoring for E.coli bacteria in Sligo. Another entry in the ongoing documentation of What our members are saying.
- posted Dec 4
Alan Hecht makes a Sligo Water Watchdog Report on cloudy, muddy water flowing into Sligo downstream from New Hampshire Ave.
- updated Oct 21
Patton Stephens reports the results of the work of 307 volunteers in cleaning up Sligo Creek.
- posted Oct 3
Ever spot pollution in the Creek and not know what to do? Our Water WatchDog Program may be able to help. We have just created a Water Pollution ID Card, funded by a Chesapeake Bay Trust Grant, along with the County's Department of Environmental Protection. Please take a card when you're cleaning up the Creek this weekend. Then, when you spot pollution, send an email and a photo to the County's water detectives at: After hours and on weekends, call the Park Police, too (301-949-3010). And, please blog your report on FoSC's Water WatchDog Action Log.
- posted Sep 24
"FoSC Logo Framed by Spider Web in Signbox" by Steven Fine
- posted Sep 14


Tue, Mar 22, 7-9pm
Sligo Dennis Community Center

Learn about our many projects. Hear about new stormwater initiatives. Speaker: Pamela Rowe, RainScapes planner

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