Wendy L. ManleyAttorney

Wendel Rosen Black & Dean LLP 1111 BroadwayOakland, CA 94607
Alter Ego

In her practice, Wendy assists clients with permitting, compliance, enforcement issues and other disputes in a variety of regulatory and litigation contexts.  For example, assisting with issues arising under the federal Clean Water Act, she provides legal guidance to industrial, municipal and construction clients on compliance with state and federal storm water permit requirements, and assists with resolution of citizen and agency enforcement actions - topics she speaks on regularly.  She also counsels clients whose activities require or have violated permits authorizing activities in wetlands, or otherwise involve discharges to Waters of the United States (or WOTUS).

Wendy assists clients whose property or project could impact endangered species.  She has also represented clients through the administrative process of listing threatened and endangered species as well.  With a strong science background, including degrees in biology and marine biology, Wendy gives clients a leg up in understanding the complex interface between science, public policy and the law as it affects their property or activities.

Wendy also orchestrates the application process for regulatory approvals for title insurers and underwritten title companies (UTCs) seeking to form, license or expand their business.  And when manufacturers or retailers face Proposition 65 claims, Wendy counsels compliance and negotiates a resolution.

Wendy’s clients include a wide range of large and small entities, including manufacturers, retailers, property owners, title companies, developers, private individuals, and public entities.  She has dealt with a number of state and federal agencies, including the State Water Resources Control Board, Regional Water Quality Control Boards, Bay Conservation and Development Commission, California Fish and Wildlife, California Department of Insurance, U.S. Army Corps of Engineers, U.S. EPA, National Marine Fisheries Service, and various local entities, among others.

To read Wendy's periodic updates on continually evolving storm water issues and developments, please visit The Storm Water Log, found in the Thought Leadership section under the Knowledge Center. 



Wendy is the author of The Storm Water Log, a frequently updated resource for tracking changes to California's storm water permitting, legislative and legal activity. 


  • "State Adopts New Storm water Regulations - Expands Program," The Water Report, March 15, 2013
  • "Selling Products in California? Watch out for Proposition 65," Currents, Spring 2006
  • "Selling Products in California? Watch out for Proposition 65," Idaho Business Review, January 16, 2006
  • "Wineries Face Liability Under Prop 65," Wine Business Monthly, March, 2006


Available Articles:

Alameda County Bar Association
  • Environmental Law Section, Executive Board

Bay Planning Coalition
  • Board of Directors

State Bar of California
  • Environmental Law section, Member

Oregon State Bar
  • Environmental and Natural Resources section, Member

Bar Association of San Francisco

California Stormwater Quality Association 


Featured Presentations:


  • Wendel Rosen's Environmental Practice Group selected as one of top three in the San Francisco Bay Area in The Recorder's 6th Annual "The Best" survey, 2012