Given its close proximity to the Washoe Smelter and the Anaconda Reduction Works facilities, the soils and waters of Remedial Design Unit 3 (RDU3) was more significantly impacted by smelter fallout than other areas within the Anaconda Smelter NPL site.
Development of remedial designs for RDU 3 – Smelter Hill Uplands was completed in 2013.
These designs required the reduction of surface soil arsenic levels to current open space/recreation standards – where practicable – through the installation of protective vegetative covers. This process includes tilling with lime and soil amendments; leading to the ultimate establishment of a self-sustaining, diverse plant species.
Approximately half of the total acreage within RDU 3 required remediation.
High contaminants of lead and arsenic
Complete lack of vegetation
Removal and remediated vegetative covers installed
Tilling with lime and soil amendments
Steep slope vegetation will be done this summer