Wastewater

We know you are confronted with changing government regulations and aging infrastructure, which can pose challenges to providing effective collection and safe treatment of your customer’s wastewater. DGR Engineering is here to help you maintain your system and design cost-effective improvements to meet your changing needs. Whether it is rehabilitation of your collection system to reduce infiltration and inflow or the design of a new wastewater facility improvement, we are here to assist you every step of the way.

  • wastewater collection, pumping and treatment design
  • sewer rehabilitation
  • coating maintenance for wastewater facilities
  • comprehensive planning, rate studies and funding assistance

Wastewater Contact:

Daniel Nebelsick, PE
Department Head
Rock Rapids

Wastewater Projects

All
  • All
  • Collection
  • Lift Stations
  • Sanitary Sewer Rehabilitation
  • Treatment Facilities

Wastewater Treatment Facility

Designed a SAGR system to be utilized as a polishing step following the City’s aerated lagoon system. The system includes a synthetic liner, aeration lines, rock media, an insulating mulch layer, control structures, and related piping.

Wastewater Treatment Facility
Hull, IA

Wastewater Treatment Facility

City of Orange City, IA prepared for the future by adding a mechanical treatment facility to meet both capacity and compliance.

Wastewater Treatment Facility
Orange City, IA

Wastewater Treatment Facility (SBR)

The new SBR system utilizes the existing aeration lagoon for equalization and another lagoon cell for sludge storage, which reduced the cost of the project for the City and provided more operational flexibility.

Wastewater Treatment Facility (SBR)
Dell Rapids, SD

Lift Station, Control Panel, Valve Vault

The SE Sanitary Sewer Extension project provided sanitary sewer service to a previously un-serviced area southeast of Dell Rapids, SD.

Lift Station, Control Panel, Valve Vault
Dell Rapids, SD

Sanitary Sewer Rehabilitation

The project was bid and came in under budget. Manhole lids were raised to provide better access in some areas, and rehabilitation of the sewer system was completed to give another 50 years of life to the City’s much-needed infrastructure.

Sanitary Sewer Rehabilitation
Rembrandt, IA

Wastewater Treatment Facility

MBBR technology was chosen based on cost, operational flexibility and most importantly, limited land availability.

Wastewater Treatment Facility
Sanborn, IA

Wastewater Treatment Facility (SBR)

The new plant, rated for 5.3 million gallons per day (MGD) peak day, doubles the capacity of its predecessor.

Wastewater Treatment Facility (SBR)
Sheldon, IA

Digester Improvements Project

Analyzed digester cover and mixing system alternatives due to condition of existing plant equipment. Selected cover and mixing system to best fit the City’s request for potential future digester gas re-use to reduce plant operational expenses.

Digester Improvements Project
Estherville, IA

Low Pressure Collection System

Analyzed collection and treatment alternatives. Designed a septic tank effluent pump (STEP) system for Superior’s residents. 

Low Pressure Collection System
Superior, IA

Pond Closure

Assisted the City of Luverne in abandoning the industrial wastewater treatment facility formerly owned by Iowa Beef Producers.

Pond Closure
Luverne, MN