NCPI History

September 6, 2023

The Clay Pipe industry authorizes the first Sewer Cleaning Standard – ASTM C1920 Standard Practice for Cleaning of Vitrified Clay Sanitary Sewer Pipelines.

August 1, 2021

NCPI conducts new CCTV study & introduces an updated Handbook providing guidance on video inspection of VCP lines.

August 1, 2021

NCPI introduces the first Operations & Maintenance Handbook.

August 1, 2021

NCPI publicizes a Health Product Declaration

August 1, 2021

NCPI conducts research into Haunch Support with soil expert Amster Howard.

August 1, 2021

Pilot Tube Method of installation is introduced.

August 1, 2021

EPA study conducted at the University of Houston confirms that modern VCP joints do not leak – in straight alignment, with angular deflection and shear load.

August 1, 2021

NCPI conducts research into the use of optimal mix design for CLSM (Controlled Low-Strength Material) as a bedding material.

August 1, 2021

NCPI Toolbox is introduced.

August 1, 2021

ASTM C1208, Specification for Vitrified Clay Pipe and Joints for Use in Microtunneling, Sliplining, Pipe Bursting and Tunnels was the first ASTM standard explicitly approved for trenchless installations.