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Portion of South Auburn Street Properties
Private
241861
N/A NEVADA CITY, CA 95959
6.67
029-350-014
39.203227106126654 / -121.05779170989992
3
Byous, Eric
Byous.Eric@epa.gov
415-972-3531


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Property Location



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Property Progress


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CAs Associated with this Property

CA NameCA #StateTypeAnnouncement Year
City of Grass ValleyBF99T62701CAAssessment2017


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Assessment Activities at this Property

ActivityEPA FundingStart DateCompletion DateCAAccomplishment Counted?Counted When?
Phase II Environmental Assessment$7,997.0009/21/201809/12/2019City of Grass ValleyYFY20
Phase II Environmental Assessment$7,997.0009/21/201809/12/2019City of Grass ValleyYFY20


Is Cleanup Necessary? Yes
EPA Assessment Funding: $15,994.00
Leveraged Funding:
Total Funding: $15,994.00


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Climate Adaption and Mitigation - Planning or Assessment

Selected Strategy(ies)Explanatory Text
Evaluate Reuse options that are climate consciousDiscussion of observed and forecasted climate change conditions and the associated site-specific risk are part of any reuse considerations. Both current and forecasted climate changes may impact the effectiveness of a remedial alternative."
Identify potential risk factors and infrastructure or utility vulnerabilitiesIdentify potential risk factors and vulnerabilities resulting directly from the impacts of climate change." Possible risk factors and vulnerabilities may include proximity to the ocean, infrastructure vulnerabilities, property affected by a revised FEMA flood plain map, vulnerability related to changes in frequency and intensity of precipitation events, vulnerability of soil type due to moisture and hydraulic changes, and ground and surface drinking water vulnerabilities."
OtherPlease explain in the box provided


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Contaminants and Media


Arsenic
Lead
Mercury
Other Metals
NOT Cleaned up
NOT Cleaned up
NOT Cleaned up
NOT Cleaned up
Soil
NOT Cleaned up

Cleanup Activities

There are no current cleanup activities.


Cleanup/Treatment Implemented:
Cleanup/Treatement Categories:
Addl Cleanup/Treatment info: Onsite encapsulation of non-hazardous wastes under engineering controls and land use covenant.
Address of Data Source:
Total ACRES Cleaned Up: 6.67
Number of Cleanup Jobs Leveraged:
EPA Cleanup Funding:
Leveraged Funding:
Cost Share Funding:
Total Funding:


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Climate Adaption and Mitigation - Demolition or Cleanup

Selected Strategy(ies)Explanatory Text
Reduce energy use and emissionsPractices to reduce energy use and emissions may include limiting or eliminating idling of heavy equipment; maximizing use of machinery with advanced emission controls; use of cleaner fuels to power machinery and auxiliary equipment; onsite carbon sequestration (e.g., soil amendments, revegetation); reducing fuel consumption to reduce air emissions; and maximizing use of renewable energy."
Reduce waste and manage materials sustainablyPractices to reduce water and manage materials sustainably may include minimizing consumption of virgin materials; minimizing waste generation; use of recycled products and local materials; beneficially reusing waste materials (e.g. concrete made with coal combustion products replacing a portion of cement); and segregating and reusing or recycling materials, products, and infrastructure (e.g. soil, construction and demolition debris, buildings)."
Sustainable land management practicesSustainable land management practices capitalize on a "whole-site" approach that accelerates cleanup while returning a site to its natural conditions. Practices focus on opportunities to preserve natural land features, maintain open space, sequester carbon, enhance biodiversity, increase wildlife habitat, and minimize surface and subsurface disturbance. Sustainable land management practices at a brownfields site may include minimizing unnecessary soil and habitat disturbance or destruction; use of native species to support habitat; and onsite remediation approaches such as bioremediation and/or phytoremediation."
OtherPlease explain in the box provided


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Institutional and Engineering Controls

Yes
Proprietary Controls Government Controls Information Devices
No
Yes
Cover Technologies (e.g., Capping) Security (e.g., Guard, Fences)
Land use covenant is required for mine waste encapsulation area and wetland area where tailings are to remain in place.
No


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Redevelopment and Other Leveraged Accomplishments

There are no current redevelopment activities.


Number of Redevelopment Jobs Leveraged:
Actual Acreage of Greenspace Created:
Leveraged Funding:


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Climate Adaption and Mitigation - Redevelopment

There is no data for Climate Adaption and Mitigation – Redevelopment


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Additional Property Attributes

The site is located within the historic Grass Valley gold mining district west (down gradient) of the historic Empire Mine. Environmental conditions identified at the property include alluvial transport of hardrock mine tailings from the historical Empire Mine located upslope to the east into a wetland at the site, as well as aerial deposition of heavy metals from historical gold recovery operations (milling and mercury amalgamation) performed near the property. Previous assessment (2005) has identified elevated concentrations of arsenic, lead and mercury in shallow soil. Risk to surface water and groundwater was previously evaluated as part of a site investigation associated with the adjacent "Village at South Auburn" property. to assess the potential impact from elevated metals concentrations. A SAP for the property was prepared and approved by the USEPA. As part of the 2017 Gold Country Coalition Assessment Grant, the City of Grass Valley used USEPA Funding to perform additional ecological validation study and prepare a cleanup plan, which was approved by the DTSC in 2022. The approved document is "Removal Action Workplan, South Auburn Street Properties, Including Empire Meadows and Village at South Auburn, 700 Block South Auburn Street, Grass Valley, California" by NV5 and dated June 22, 2022.
Hazardous
ID Number (if Applicable): 101735 Enrolled:


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