Wastewater Engineering

Bookmark and Share Print page

The effective management and treatment of municipal and industrial wastewater is critical to maintaining public

Wright-Pierce recently partnered with the Massachusetts Rural Water Association to conduct
Infiltration and Inflow (I/I) and Sanitary Sewer Overflow (SSO) Abatement Training.
Link to Training Videos
health and a clean, safe environment. Wright-Pierce's Wastewater engineers have a wealth of experience in treating wastewater and its residuals from small decentralized systems to large, complex municipal and industrial systems.

Over our 65 year history, wastewater engineering services have been the mainstay of our company. We are a leader ranking in ENR's Top 25 wastewater firms in the U.S. We are known for our innovation, our application of appropriate technology, and our reliable operator-friendly solutions.


Nutrient Removal and WWTF Optimization
Training Seminar

  • Half-day seminar, 8:00 am - 12:00
  • Sponsored by Mass Rural Water Association and Wright-Pierce
  • Free
  • TCHs available
  • 3 convenient Massachusetts locations:
    Central - Upper Blackstone WPAD, Tuesday, May 16
    Western - Amherst, MA WWTF, Tuesday, April 25
    East/Southeast-MA DEP Lakeville Office, Tuesday, June 13

Click here for more information and to register.


Mattabassett WPCF Voted "Top Project” In New England Region by
Engineering News Record
The Mattabassett District Water Pollution Control Facility upgrade for enhanced nitrogen removal, was voted the "Best New England Project” in the Water/Environment category. The upgraded facility, one of the largest in Connecticut, is consistently achieving stringent discharge limits.
Case study

Wright-Pierce Ranks in Top 25 Wastewater Firms In US

We are proud to have also have been recognized in the Top 25 engineering firms in the US in the following industry categories:
  • Top 25 Wastewater Treatment 
  • Top 25 Sanitary and Storm Sewers

Wright-Pierce Ranks in Top 200 Environmental Firms in the US
Wright-Pierce has been recognized once again this year as one of the "Top 200” Environmental Firms by Engineering News Record (ENR). This year we achieved our highest rank to date.

Wastewater Treatment Facilities Upgrades Earn "Engineering Excellence" Awards

Smithfield, RI
The first tertiary wastewater treatment ballasted flocculation system in the State of Rhode Island and one of the first in the region using this new manufactured technology earns an ACEC Award for Engineering Excellence. Read more. 

Falmouth, ME
The design of the Falmouth, ME wastewater treatment facility upgrade resulted in a nearly 40% increase in treatment efficiency and over 40% reduction in energy consumption. Project received the Engineering Excellence award from American Council of Engineering Companies (ACEC) of Maine. Read more.

Sanford, ME
The design of the Sanford, ME wastewater treatment facility upgrade represents advanced environmental engineering design capable of removing phosphorus and ammonia to extremely low levels. The upgraded facility removes significantly more pollutants from the influent wastewater while using approximately 14% less electrical energy and 40% less chemicals than old facility. Project received the Engineering Excellence award from American Council of Engineering Companies (ACEC) of Maine. Read more.


Articles of Interest
Collection System and Asset Renewal Management details
Controlling O & M Costs through SCADA Optimization details
Integrated Watershed Nutrient Management details
Mattabassett WWTF Upgrade Improves Water Quality of Long Island Sound details
Nitrogen Removal Upgrades at Durham and Dover Wastewater Treatment Facilities Improves Great Bay Water Quality details
Phosphorus Control at Leominster WWTF Cleans up North Nashua River details
WWTF Upgrade Achieves Stringent Phosphorus and Zinc Goals details
Wright-Pierce Leads Way in Watershed Protection From Nitrogen Loading details
Minimizing CSOs details
Public-Private Strategy a Success - Jady Hill details
Impact of Climate Change on Wastewater Treatment Facilities details
Wastewater Pipe Condition and Assessment details
Asset Management Key to Financial Viability of Water and Wastewater Utilities details
Protecting Long Island Sound and Saving the Rate Payers Money details
CT DEP Sets More Stringent Interim Phosphorus Limits details
Wastewater Urine Reuse details
Wastewater Sludge Dewatering details
Trenchless Pipeline Installation in Newport, RI details
Nitrogen- Its Fate as it Moves Through the Watershed details