The Online Watershed Library (OWL) is a service provided by the Center for Watershed Protection that allows ready access to Center publications and other resources (research papers, tools, and stormwater manuals, among others) that support best practices in watershed and stormwater management. OWL is a searchable, online database of basic information, stormwater and watershed manuals and plans, assessment tools, regulatory information, and other watershed-related resources. Users may also submit materials for inclusion in the OWL.
OWL was developed to be a time-saver for watershed and stormwater practitioners as it provides users access to a well-organized database of relevant and up-to-date information. Due to copyright protection, not all publications included in OWL are available for download and in such circumstances, a link to the publication is provided.
Institutions or libraries that require a Licensing Agreement, click here.
All Center for Watershed Protection publications) can now be accessed using OWL. Electronic publications may be downloaded or order hard copies.
Attention: If you have downloaded free publications in the past, a login is no longer required. For access to the full Online Watershed Library(OWL), you can buy an annual subscription or join CWPA which includes a free annual subscription to OWL.
I’m a CWPA member
Begin your search now if you are a CWPA member with your login information.
Subscribe to OWL
I’m not a CWPA member
Non-CWPA members may purchase a subscription for $39.99/year to access the complete set of resources available in OWL.
Upload a document
to be included in OWL
CWPA members or OWL subscribers may upload a publication
How much do you know about the stormwater fees and how they help protect our watersheds? Read the article and then check out our white paper:
Read the new February 2015 issue
of Runoff Rundown CLICK HERE!
NEW BLOG POST!
Retrofitting into the New Year. CLICK HERE!
Read the November 2014 Watershed Science
Bulletin CLICK HERE!
Discover two new tools for sniffing out sewage. CLICK HERE!
Need to develop an IDDE program? Read the guidance.
Two versions of the Watershed Treatment Model (WTM) released to help users estimate benefits from a wide range of stormwater runoff and pollutant removal practices. Download your FREE COPY of the WTM and User's guide.
- Center Awarded an Innovative Nutrient and Sediment Reduction Grant
- Clean Water Certification & Workforce Development
- Center receives EPA funding to restore Proctor Creek Watershed in Atlanta
- How to "credit" trees for runoff and pollutant load reduction
- Onancock parking lot soaks up rain for a cleaner creek
- Panelists focus on the changing, more stringent regulations for stormwater management and the new ecological stormwater era
- Center for Watershed Protection Awarded Gold-Level GuideStar Exchange Participant