The National Pollutant Removal Performance Database v. 3

The National Pollutant Removal Performance Database, version 2 (Winer, 2000) consisted of 139 individual best management practice (BMP) performance studies published through 2000. The National Pollutant Removal Performance Database v. 3 was recently updated to include an additional 27 studies published through 2006. The updated database was statistically analyzed to derive the median and quartile removal values for each major group of stormwater BMPs. The data are presented as box and whisker plots for the various pollutants found in stormwater runoff. A brief technical paper (10 pp.) presenting this data is now available for direct free download.

The Center drafted a guide for developing watershed plans in Maryland for the Maryland Department of Natural Resources. The User's Guide to Watershed Planning in Maryland provides a common planning framework for Maryland communities, assembles planning resources into one place, integrates regulatory drivers, and presents the methods necessary for completing a watershed plan. The guide represents a compilation of information gathered from 25 interviews with state agency program managers and local government staff and incorporates a review of more than 47 local watershed planning surveys. December 2006.

User’s Guide downloadable tools are provided in lieu of appendices. The guide is available for free download from Maryland's Department of Natural Resources website: http://dnr.maryland.gov/watersheds/pubs
/userguide.html

Stormwater Management Pond Design Example For Extended Detention Wet Pond

AVAILABLE IN ELECTRONIC FORMAT ONLY. Due to popular demand, we have created a file version of this classic document. This 73-page stormwater management pond design example sets forth a step-by-step approach for
the design of a stormwater management wet extended detention pond in the mid-Atlantic piedmont region of the United States. Published December 1995.
NOW AVAILABLE AS A FILE DOWNLOAD!

Urban Lake Management: Special Techniques 12

AVAILABLE IN ELECTRONIC FORMAT ONLY.This special edition of Techniques is devoted to exploring how development impacts lakes and reservoirs, and examining ways to reduce these impacts with watershed management practices. Approx. 102 pages. Published December 2001.
NOW AVAILABLE FOR FREE!

AVAILABLE IN ELECTRONIC FORMAT ONLY. This manual explores ten filter designs used to treat urban and suburban stormwater runoff, including bioretention, sand filters, grass swales, open channels, and more. Provides detailed schematics and design criteria for stormwater management, along with alternative design configurations, sizing guidance, and easy to follow step-by-step design examples. Describes the most applicable development conditions for each filter, and outlines key feasibility factors. Illustrated with over 50 figures and 60 tables. Approx. 220 pages. Published December 1996.
NOW AVAILABLE FOR FREE!

National Pollutant Removal Performance Database - 2nd Edition

AVAILABLE IN ELECTRONIC FORMAT ONLY. The second edition modifies, clarifies, and expands upon the original National Database of BMP Pollutant Removal Performance. This comprehensive report contains summaries of more than 135 urban pollutant removal monitoring studies. Includes a statistical and graphical comparison of removal rates for six groups of stormwater management practices: ponds, wetlands, open channels, filters, infiltration and on-site devices. In addition, key research gaps in terms of parameters and practices are identified. Approx. 29 pp. plus 139-record database and appendices.
NOW AVAILABLE FOR FREE!

The Economics of Stormwater BMPs

AVAILABLE IN ELECTRONIC FORMAT ONLY. Even though this 1997 Center report has been out of print for several years, "The Economics of Stormwater BMPs"continues to be a regularly-requested document. This report presents cost data (1996-97) for urban stormwater practices, updates cost prediction equations, and assesses the cost-effectiveness of the BMPs most commonly used in the MidAtlantic region, including dry ED ponds, wet ponds, wetlands, sand filters, etc. Published August 1997. Approx 40pps. NOW AVAILABLE AS A FILE DOWNLOAD!

Impervious Cover and Land Use in the Chesapeake Bay Watershed

AVAILABLE IN ELECTRONIC FORMAT ONLY. This report summarizes a Center study that analyzed 12 suburban land uses in four Chesapeake Bay watershed communities. The study derived impervious cover-land use coefficients that can be used along with land use data to estimate current and future impervious cover in your own watershed. Included in the report is a method of using these numbers to estimate impervious cover, a detailed study methodology, a review of other methodologies, and an analysis of research documenting the relationship between impervious cover and stream quality. Approx. 61 pages. Published January 2001.
NOW AVAILABLE FOR FREE!