Fully verified Floodplain engineering (PE / CFM certification) Las Vegas, NV · Southwest — Monsoon Flash-Flood Country (Arizona & New Mexico)

Westwood Professional Services (formerly Slater Hanifan Group)

Carries the strongest named PE and CFM flood control credential found in Las Vegas: a co-founder serving as Director of Flood Control Engineering, recorded in both a regional flood control district technical committee agenda and a municipal qualifications submission.

Who runs it

  • Mark Failla PE, CFM - Director of Flood Control Engineering; co-founder

Credentials & verification

CFM (Certified Floodplain Manager)
Named PE + CFM recorded in flood control district and municipal documents

Services

  • flood control master planning
  • hydrology hydraulics
  • drainage design
  • fema floodplain mapping

Service area

Las Vegas · Clark County · Henderson · Mesquite · Southern Nevada

Our verification notes

Entity name changed - the Las Vegas office now operates under Westwood Professional Services, with the Slater Hanifan name as transitional branding. Cite older Slater Hanifan records with that context.

Sources checked

  • http://gustfront.ccrfcd.org/pdf_arch1/agendas/2020/TAC-June2020.pdf
  • https://d3n9y02raazwpg.cloudfront.net/mesquitenv/7e997c52a274a75597f75692bcef2a56.pdf
  • https://www.clarkcountynv.gov/adobe/assets/urn:aaid:aem:d6cf9f70-d233-4e71-97fa-35cd51fdde2c/original/as/ccpwsoqrankinglist.pdf

Last verified 2026-08-13. This is an independent listing, not an endorsement, and we are not affiliated with Westwood Professional Services (formerly Slater Hanifan Group). Confirm the current license, insurance and references directly before signing any contract.

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