New Plymouth Wastewater System Improvements

Improvements were made throughout the entire City and have prepared the City for increasing population growth until 2027.  Some work was within Highway District and Irrigation District right-of-way and required coordination with other agencies.  Replacement of the deteriorated sewer mains has resulted in considerably lower sewer flows due to the decrease in infiltration and inflow.

Because of low construction costs and the size of the available construction budget, the City was able to complete over 50% more work than originally bid.  This project was funded through Rural Development and City funds.

Services Included:

• Approximately 10,230 linear feet of 8-,12 and15-inch PVC SDR
  35 gravity sewer pipe
• Approximately 5750 linear feet of 6-, 8- and 12-inch CIPP liner
  a screen building at the wastewater lagoons

Services Provided by HECO Engineers:

• Preliminary Engineering
• Construction Management
• Survey
• Civil Engineering
• Construction Documents
• Project Management
• Condition Assessment