About Us

Commercial, Golf, Municipal


AGS Irrigation Design & Consulting is an internationally recognized irrigation design and consulting firm with over 50 years of experience in the unique field of Landscape and Golf Course irrigation systems. Originally established at the request of Architects and Professional Landscape Managers to assist them in meeting today’s need for water and energy conservation, AGSI has proven itself with literally 100's of successful Golf Course, Resort and Commercial projects in 40 different states in the U.S. and 29 different countries throughout the world.

Past Publication Links:

Improving Efficiency in Irrigation Design:  https://landscapeonline.com/articles/lasn-asic-on-irrigation-design-july-1989/9847

Renovating a 40-year old Condo Project


Irrigation BMP


Past Projects


Sample Project List

Kukui’ula Resort, Koloa, Kauai, HI– The 1,041-acre project has been constantly changing as the market place has changed. Originally started by A&B in the late 1980’s it moved slowly until 2004 when DMB out of Phoenix teamed up with A&B. Since then we have been involved with the Irrigation and Non-potable water system master plan and are currently involved with the construction documentation and administration of the Hotel, shopping center, employee housing, park, conservation areas and their extensive roadway systems. Role: Irrigation Consultation, Master Planning and Lead Designer.

Villages at Poipu, Poipu, Kauai, HI – Working with the Civil engineers and hydrologists we master planned the non-potable system for this 200-acre housing project nestled between Koloa town and Poipu. Phase 1 of the project is currently in construction and irrigation work is slated to begin next month for the roadways, mainline infrastructure and several park areas within the subdivision. 

Role: Irrigation Consultation, Master Planning and Lead Designer.

Kukio Bay BeachClub and Resort, North Kona, HI – Working with Civil engineers, landscape architects and Planners, Irrigation Hawaiiprovided a master plan for the non-potable system at the Kukio Resort and its additions at Maniniowali Bay and Ka’upulehu Resort. Irrigation  Hawaii also provided detailed construction documentation on many of the common areas, including several which were done with Belt Collins – Hawaii. This includes the Ka’upulehu Beach Club which recently won the AIA Merit Design Award for 2009.

Mauna Kea Golf Course Renovation, South Kohala, HI  - Working with Reese Jones, Belt Collins – Hawaii and Landscapes Unlimited, our team provided the construction documentation for the renovation of the Historic and world famous Mauna Kea Golf Course, originally designed by Reese’s father Robert Trent Jones Sr. This $10 Million Dollar renovation was the first Golf course in Hawaii to use HDPE piping for both main line and lateral piping. 

Mauna Kea Beach Hotel, Mauna Kea BeachResort, Kamuela, HI– Working with Belt Collins – Hawaiiin 1995/96 provided the full construction documentation for the landscape and irrigation renovation at the 30-year-old hotel, to include an upgrade to a centralized control system.

Hapuna Beach Hotel – Mauna Kea Beach Resort, Kamuela, HI – Working with Belt Collins Civil and Landscape sections, Irrigation Hawaiiprovide full construction documentation for the new Hotel, golf club house and roadway systems.

Kohanaiki Resort, South Kona, HI – Working directly with the owners, we provided a master plan for the resort. We also provided most of the construction documentation for the irrigation system installation which is currently being installed by their in-house staff.

National Tropical Botanical Gardens – Lawai, Kauai, HI – Irrigation Master Plan for the 200-acre National Botanical Garden started in 2004 and revised in 2006. Role: Irrigation Master Planning services. 

Additional reference upon request  

Contact info


Why use us:

Contact Information:

Telephone (808) 722-1993

email:  Please Use link below   




Years of Experience: 50 plus

Training: University of Wisconsin, School of Soil Sciences, Graduate of Landscape Architecture

Certification: Professional Member American Society of Irrigation Consultants;

Certification Number No. 340384

EPA WaterSense Partner

Overall Relevant Experience: Mr. Schildknecht has worked in the field of landscape and golf irrigation design and consultation since 1967. Over these years he has worked on project within 40 different States and 29 countries around the world. Allan's work include numerous world class golf courses, resorts, municipal, federal and commercial projects. These include the recent renovation of the Mauna Kea Golf Course on the Kohala Coast of Hawaii, the renovation of the Ritz Carlton Residences (formerly the Kapalua Bay Resort), the master planning and most of the construction documentation for the 1,041 acre Kukui’ula resort on Kauai. Our work has also included a fair share of military and municipal work both in Hawaii and elsewhere.

 All projects were designed with water and energy conservation as well as minimizing maintenance in mind.

Mr. Schildknecht was the first  independent EPA WaterSense Partner for Landscape Irrigation services located in Hawaii. Additionally, he is a Professional Member of the American Society of Irrigation Consultants, twice Past President of the Hawaii Chapter of the American Society of Landscape Architects, the Landscape Industry Council of Hawaii (LICH) and many other organizations.

PAMELA P. SCHILDKNECHT, Irrigation Designer and Auditor

Years of Experience: 40 plus years

Training: Milwaukee Institute of Technology, Landscape Program plus various Industry Schools, including a Harvard University, Graduate School of Design Short Course on Golf Course Design and Planning.

Certification: IA Certification No. 015955

Overall Relevant Experience: Ms. Schildknecht was the only Irrigation Auditor in Hawaii. Over the past 40+ years, she has worked in various aspects of Irrigation design and has overseen installations in Hawaii and Asia. Her previous experience as a draftsperson for a major Civil and Structural Engineering firm coupled with coordination with clients, other consultants and her involvement in projects from conceptual design through construction, has been a great asset to our firm.  

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AGS Irrigation Design Consultant

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