Here are some helpful industry resources and links:

American Society for Testing and Materials

ASTM International is a standards development organization for materials, systems, products, and services.


American Water Works Association

The AWWA is an organization dedicated to the improvement of water quality and supply.


GeoExchange LogoGeothermal Heat Pump Consortium

For more than a decade, the Geothermal Heat Pump Consortium has been working to increase the awareness and use of geoexchange technology throughout the United States and the world.


International Ground Source Heat Pump Association

IGSHPA is an organization established to advance geothermal heat pump technology on a local, national, and international level.


The Irrigation Association

The IA is an organization that promotes and supports the irrigation industry through a shared vision of water conservation through efficient irrigation.


National Ground Water Association

NGWA is an organization who’s purpose is to provide guidance to members, government representatives, and the public for sound scientific, economic, and beneficial development, protection, and management of the world’s ground water resources.


National Sanitation Foundation

NSF International is a public health and safety regulator.


PPI LogoPlastic Pipe Institute

Founded in 1950, The Plastics Pipe Institute Inc. (PPI) is the major trade association representing all segments of the plastics piping industry.


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Centennial Plastics
1830 Centennial Ave.
Hastings, NE 68902-0329
Phone: 866-851-2227
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