Question: Security Management is a monthly magazine based in a city located along the western bank of what?

Context paragraphs:
ITIL security management: ITIL security management (originally Information Technology Infrastructure Library) describes the structured fitting of security into an organization.  ITIL security management is based on the ISO 27001 standard.  "ISO/IEC 27001:2005 covers all types of organizations (e.g. commercial enterprises, government agencies, not-for profit organizations).  ISO/IEC 27001:2005 specifies the requirements for establishing, implementing, operating, monitoring, reviewing, maintaining and improving a documented Information Security Management System within the context of the organization's overall business risks.  It specifies requirements for the implementation of security controls customized to the needs of individual organizations or parts thereof.  ISO/IEC 27001:2005 is designed to ensure the selection of adequate and proportionate security controls that protect information assets and give confidence to interested parties."

PacWest Bancorp: PacWest Bancorp () is a bank holding company based in Los Angeles, California, with one wholly owned banking subsidiary, Pacific Western Bank.  Pacific Western Bank has 79 full-service branches located throughout the state of California and one branch in Durham, North Carolina.  Pacific Western provides commercial banking services, including real estate, construction, and commercial loans, and comprehensive deposit and treasury management services to small and medium-sized businesses.  Pacific Western offers additional products and services under the brands of its business groups, CapitalSource and Square 1 Bank.  CapitalSource provides cash flow, asset-based, equipment and real estate loans and treasury management services to established middle-market businesses on a national basis.  Square 1 Bank offers a comprehensive suite of financial services focused on entrepreneurial businesses and their venture capital and private equity investors, with offices located in key innovation hubs across the United States.

Alexandria, Virginia: Alexandria is an independent city in the Commonwealth of Virginia in the United States.  As of the 2010 census, the population was 139,966, and in 2016, the population was estimated to be 155,810.  Located along the western bank of the Potomac River, Alexandria is approximately 7 mi south of downtown Washington, D.C.

KGYS (urban safety management system): KGYS, acronym for Kent Güvenlik Yönetim Sistemi" (literally: City Security Management System), is a modular monitoring and imaging system used in urban areas of Turkey for law enforcement to ensure public security, to defend against internal security threats and to perform control tasks more effectively.  Significant results are obtained by processing the image and location data in accordance with the legislation, which are supported by results produced by the Turkish Police Information Network (PolNet).

STET Homeland Security Services: STET Homeland Security Services (Chinese: 新科国土安防公司), formerly STET Homeland Security, is a security consultancy firm based in Singapore.  It was founded in 2005 and is a company of Singapore Technologies Electronics Limited (ST Electronics).  ST Electronics is a company of ST Engineering which is listed on the Singapore Exchange.  STET Homeland Security Services is one of the major security firms, such as Certis CISCO (the largest Auxiliary Police Force in Singapore having close to 4,000 armed officers), Aetos Security Management, Sinclair Knight Merz and Heierli Consulting Engineers, that are active in Singapore.  It specializes in security consultancy and does not provide manpower.

Great Western Bank (1907–present): Great Western Bank whose holding company is Great Western Bancorp, Inc..  (NYSE: [ GWB] ) is a regional bank based in Sioux Falls, South Dakota.  There are over 170 locations in Arizona, Colorado, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota and South Dakota.  Great Western Bank currently has assets of $11.45 billion.

CapitalSource: CapitalSource is a commercial lender that is a division of Pacific Western Bank and provides senior debt loans of $5 million to $100 million to middle-market companies throughout the United States.  The company targets specific industries in its portfolio of holdings, particularly focusing on technology, real estate, healthcare, security, small business, golf finance, and equipment leasing companies.  With $16 billion in assets and 80 full-service branches located throughout the state of California.  Pacific Western Bank is a wholly owned subsidiary of PacWest Bancorp

Peter Tarlow: Peter E. Tarlow (born May 4, 1946) is a rabbi and was the executive director of Texas A&M Hillel from 1983 to 2013.  He is a scholar in the area of tourism safety, a consultant for the tourism industry, and the founder of Tourism & More Inc.  He worked as a security consultant to the city of Arlington, Texas, in preparation for Super Bowl XLV.  Tarlow's scholarship in tourism and security has been relied upon by mainstram media for his expertise.  He is the author of "Event Risk Management and Safety," which was reviewed by "Security Management" magazine in 2003 and 2005.  In 2007 he was a speaker at The Intelligence Summit.  His Ph.D. is in sociology and aside from his work at Texas A&M, he "teaches 'tourism safety' to police chiefs around the world".

Bartlesville Monthly Magazine: Bartlesville Monthly Magazine is a free of charge community magazine based in Bartlesville, Oklahoma.  The monthly publication puts special emphasis on providing the Bartlesville community with lighthearted positive news from the area, an extensive community calendar, and stories of the events, places and people who make Bartlesville a vibrant and happy place to live, work and play.  The magazine prides itself on being local in ownership, writing and printing.  The magazine pushes the core belief of keeping commerce within the Bartlesville community.  Bartlesville Monthly has underscored community support by being the presenting sponsor for OKMozart's 2012 Launch Party, and the presenting sponsor of 2012 Annual Bartlesville Chamber of Commerce Dinner.  The magazine has also sponsored many community events, including The Downtown Bartlesville Ghost Walk, Shamrock the Ville, YP Hot Street Party, "The Good, Bad & BBQ", and Woolaroc's "Cow Thieves and Outlaw Reunion" to name a few.

Security Management (magazine): Security Management is the monthly magazine of ASIS International (formerly the American Society for Industrial Security).  The publication combines featured articles on topics such as terrorism and corporate espionage, with staff-written departments covering news and trends, homeland security, IT security, and legal developments.  The magazine is based in Alexandria, Virginia.

Supporting paragraphs: Security Management (magazine) Alexandria, Virginia
Answer: the Potomac River