Steven Hohl, FASIC

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Steven Hohl, FASIC

Member Category


Company Name

Water Concern, LTD

Company Type

Professional Design Office


[email protected]




29829 Santa Margarita Pkwy., Suite 200
Rancho Santa Margarita, California South 92688
United States

Service Area


Specialties and Projects

Athletic Fields/Complexes
  • Saddleback Unified School District – 34 campuses, Orange County, California
  • Wildcatters Park, Brea, California
  • Encinitas Community Park, Encinitas, California
  • Pelican Hill Resort, Newport Beach, California
  • Annenberg Estate – Historic house / Cottages, Rancho Mirage, California
  • Terranea Resort, Rancho Palos Verdes, California
Community Development/Master Planning
  • Rancho Mission Viejo
  • Ladera Ranch
  • Las Flores
Housing Development/Residential
  • Summerly, Lake Elsinore, California
  • Blackstone Development, Brea, California
  • Paseo del Sol, Temecula, California
  • Msheireb Downtown Doha, Doha, Qatar
Water Management/Resource Assessment
  • Ladera Ranch Master Maintenance Corporation
  • Aliso Viejo Community Association


  • BS, Irrigation Science – California State University Pomona
  • IA Certification: CID

My career began in the irrigation industry as a temporary summer hire for a landscape architectural firm while working on my engineering degree.  I ran diazo blueprints (yes, this dates me), errands, and provided relief drafting work (Rotrings on mylar of course.)  I was enamored by the green industry and the positive influence green spaces provide human culture.  It was immediately apparent how important water is to the development of landscape.  Yet, being of a finite source, the importance of proper and careful use of water in the landscape created the directive for how I wanted to influence the industry.

I changed my career path and enrolled as one of the first students in the Irrigation Science Program at Cal Poly.
I was fortunate to study under Joe Y.T. Hung, Eudell Vis, and Dr. Ramesh Kumar.   They combined the principles of soils, horticulture, and irrigation science to integrate the aspects of soil, plant and water relationships.

I began providing irrigation design for the firm and grew the department.  Ten years later, Water Concern was formed.

I joined  the American Society of Irrigation Consultants and volunteered to participate on the local southern California Board as well as the national Board.  The professional exchange of ideas and practices along with a lifetime of friendships have made the time and commitment to ASIC well worth it.


The irrigation industry is one with rapid growth in technology, regulation and design innovation.  There is always something new and innovative to promote the conservation of resources.  There is no better way to devote a life of work than to participate in the artistic endeavors of landscape architects throughout the industry while making a mark to conserve water on each project.


Company Information

Water Concern, Ltd. is an independent irrigation design and water management consulting firm incorporated in the State of California in June, 2000 and consists of one office located in Rancho Santa Margarita, California.

There are currently eight (8) full time personnel employed within the company.

Water Concern, Ltd. is a multi-faceted collaboration, specializing in large scale irrigation master planning and design, irrigation retrofit, water management, and central control systems.

Experiences range from master planned community development, parks, sports fields, streetscenes, community associations, and commercial landscapes.  We are comprised of a team of experienced irrigation professionals; many hold multiple certifications and are highly regarded for their irrigation and water management solutions.

Water Concern is highly focused on resource management – considering budgets and conservation that are increasingly crucial to the overall success of the landscape program in the community.

Water Concern is actively involved in State and local water issues including involvement with the AB1881 Model Water Efficient Ordinance and California Department of Water Resources Irrigation Technical Panel.