Reclaimed Water Infiltration Study
The LOTT Clean Water Alliance (LOTT) is a public, non-profit entity responsible for providing wastewater treatment and management for the cities of Lacey, Olympia and Tumwater in northern Thurston County, Washington. LOTT's long-range plan relies on the production and beneficial use of reclaimed water to meet the urban area's growing demand for wastewater management.
Our role includes fieldwork to characterize the water quality of LOTT's reclaimed water and local area waters with respect to residual chemicals and other water quality parameters, trace the movement of these chemicals through the environment, and determine the extent of their degradation over time. This information will be used to provide context regarding human/ecological risk associated with existing water use. Additionally, this project includes an evaluation of treatment effectiveness for the removal of the residual chemicals.
Our field work tasks include development of sampling and analysis plans, sample collection and management, review and validation of laboratory data, and reporting results. We also provided assistance to LOTT in its public outreach efforts associated with this project, including facilitation of a 13-member Community Advisory Group and organization of large-scale public workshops at project milestones. Finally, our work is being reviewed by an independent third party Peer Review Panel convened by the National Water Research Institute.
- Pharmaceutical and Personal Care Product (PPCP) source tracing to understand where constituents exist in the environment
- Development of sampling plans and execution of field sampling to determine chemical fate and transport
- Evaluation of treatment effectiveness to plan for future constituent removal at the wastewater treatment plant
- Development and distribution of public education and outreach materials