Wastewater

Wastewater Collection & Treatment Engineers

Effective wastewater systems protect public health, preserve the environment, and support long-term community growth. At S&A Engineers, we design and improve wastewater infrastructure that is reliable, efficient, and built to meet evolving regulatory and operational demands.

From on-site treatment and dispolal rural systems to complex municipal facilities, our team delivers practical engineering solutions that prioritize performance, cost efficiency, and ease of operation.

Areas of Expertise

  • Facility planning studies for sewer collection and treatment
  • Collection system modeling
  • Environmental reviews related to wastewater funding
  • IPDES permitting / re-permitting
  • Wastewater system design: gravity collection, pressure collection, lift stations, wastewater treatment, emergency generators and SCADA system
  • Rehabilitation of  gravity collection, pressure  collection, lift stations, wastewater treatment, emergency generators and SCADA system
  • Trenchless collection line replacement
  • Reuse (land application) design and permitting
  • Large on-site soil absorption system design
  • Rates and connection fee calculations

Sample Wastewater Projects

Enhanced Wastewater Treatment Filtration & Large Soil Absorption System - Elk Bend Sewer System

Lemhi County, ID

Suction Lift Station w/ Vertical Mechanical Screen

City of Cascade, ID

Teton Highway Lift Station

City of St Anthony, ID