Hampden Township Wastewater Odor Control Study

Client: Hampden Township (for Gannett Fleming)

Project: Hampden Township Wastewater Odor Control Study

Project Type: Odor Evaluation

Industry: Utilities

Location: Hampden Township, PA

To optimize treatment and performance, and to mitigate nuisance odors emitted from the conveyance and treatment processes from facilities owned and operated by the Hampden Township Sewer Authority, Material Matter, Inc. teamed with Gannett Fleming, Inc. and to evaluate and propose solutions to the problem.

Material Matters, Inc. developed and implemented an odor emission sampling plan to quantify nuisance odors originating from the collection system (pump stations and air release facilities) and the WWTP. Nuisance odor measurements focused on human olfactometry techniques using both field and laboratory assessment methods. Olfactometry assessments were supplemented with electronic field instrument measurements.

Findings from the sampling and odor assessment study were reported to the Authority in a memorandum characterizing and quantifying nuisance odors originating from specific emission points in the wastewater collection and WWTP systems. This information was provided to Gannett Fleming engineers to prioritize, target, and facilitate design of mitigation measures intended to reduce nuisance odor episodes experienced by neighbors.