Chesapeake Stormwater Network Latest Newshttp://www.chesapeakestormwater.net/all-things-stormwater/en-US2012-02-08T15:43:37ZSquarespace Site Server v5.11.81 (http://www.squarespace.com/)Mosquitos and Bioswaleshttp://www.chesapeakestormwater.net/all-things-stormwater/mosquitos-and-bioswales.htmlCSN2009-12-09T03:01:05ZDelaware Research Update bioswales mosquitosThis is a report on mosquito breeding in bioswales in Delaware that Randy Greer of DNREC passed along to me recently. It offers some troubling data on potential mosquito production from these areas, and some prevention techniques.

]]>Bioretention Hydrologyhttp://www.chesapeakestormwater.net/all-things-stormwater/bioretention-hydrology.htmlCSN2009-12-09T02:59:59ZA recent paper on bioretention hydrologic performance  provides reliable data on how runoff reduction actually works within test bioretention cells. This solid paper also provides technical support for many of the Level 1 and 2 design criteria that are being proposed in the Commonwealth of Virginia.

]]>Maryland Bioretentionhttp://www.chesapeakestormwater.net/all-things-stormwater/maryland-bioretention.htmlCSN2009-12-09T02:57:35ZMaryland Research Update bioretentionYou can never read too many papers on bioretention. This 2008 offering by Dr. Allan Davis at University of Maryland provides an excellent summary of the hydrologic performance of two test bioretention areas, based on monitoring of many, many storms. Click here.

]]>Talking Trash in Runoffhttp://www.chesapeakestormwater.net/all-things-stormwater/talking-trash-in-runoff.htmlCSN2009-12-09T02:52:23ZResearch Update gross pollutantsThe last paper is a notable contribution from our fellow Australian stormwater geeks that looks at "gross pollutants" in stormwater – things like trash, debris, floatables and the like. We are often so nutri-centric in the Bay watershed that we often overlook the massive loads of these pollutants. Not so our fellow citizens, who are astonished by the trashiness of urban stormwater while walking along the Baltimore or Anacostia waterfront. Click here to learn more about urban grossness.

]]>Industrial Stormwater Compliancehttp://www.chesapeakestormwater.net/all-things-stormwater/industrial-stormwater-compliance.htmlCSN2009-12-09T02:49:00ZResearch UpdateThis report details how California assessed compliance levels at thousands of stormwater hotspots across many different industrial sectors. The report, prepared by Tetra- tech, chronicles the spotty compliance record at most industrial NPDES stormwater sites, but also documents on how it markedly improved after site audits, inspections and technical assistance were applied. Since we don't do such a great job in inspecting stormwater hotspots in the Bay watershed, folks may want to click here to find out ways to improve our game.

]]>Phosphorus Fertilizer Bans Work in Minnesotahttp://www.chesapeakestormwater.net/all-things-stormwater/phosphorus-fertilizer-bans-work-in-minnesota.htmlCSN2009-12-09T02:34:47ZResearch Update fertilizerLID Subdivision Monitoringhttp://www.chesapeakestormwater.net/all-things-stormwater/lid-subdivision-monitoring.htmlCSN2009-12-09T02:15:17ZLID Research Update A paper by Bill Selbig and his colleagues in Wisconsin summarizes a six-year paired monitoring study of a traditional subdivision versus a subdivision that was designed with LID practices. The results indicate a significantly different hydrological response from the LID subdivision. Click here for a copy.

]]>Jordan Cove LID Monitoring Studyhttp://www.chesapeakestormwater.net/all-things-stormwater/jordan-cove-lid-monitoring-study.htmlCSN2009-12-09T02:14:09ZLID Research UpdateThis long-awaited paper summarizes one of the nation’s longest running LID research sites, the Jordan Cove Study. This updated review of the results of this landmark monitoring study can be accessed here.

]]>LID Costs for Redevelopment Siteshttp://www.chesapeakestormwater.net/all-things-stormwater/lid-costs-for-redevelopment-sites.htmlCSN2009-12-09T02:13:00ZLID Research UpdateThis 2008 report released by the Chesapeake Bay Foundation looks at the feasibility of Low-Impact Development practices using three real world urban redevelopment project sites in Maryland. Modeling showed that these practices enabled dense urban mixed-use redevelopment projects in Maryland to capture and filter/ infiltrate substantial volumes of stormwater at reasonable costs when compared with conventional (non-green) solutions such as underground storage tanks. This is an important finding as Bay states struggle to define more stringent stormwater requirements for redevelopment projects. To get a copy of their study and modeling assumptions click here.

]]>President Obama’s Executive Order: Stormwater Recommendationshttp://www.chesapeakestormwater.net/all-things-stormwater/president-obamas-executive-order-stormwater-recommendations.htmlCSN2009-12-08T00:58:30ZPolicy Overview