HomeMy WebLinkAbout[Untitled]_6-6y Former Phoenix & Son Garage & Storage - 4 - 20 September 2016
Bakersfield, Kern County
Closure Summary
3. Direct Contact and Outdoor Air Exposure - Benzene, ethyl benzene, and naphthalene
concentrations exceeding human health screening levels listed in Table 1 were not
detected in areas of potential shallow soil contamination during previous investigation.
The subject UST release satisfies criteria in the Low Threat Case Closure section:
a) Municipal and county, water districts, water replenishment districts, special act districts
with groundwater management authority, agencies with authority to issue building
permits for land affected by the ,unauthorized release, and the owners and occupants of
the property affected by the unauthorized release, and owners and occupants. of all
parcels adjacent to the impacted property have been-notified of the proposed case
closure and were provided a 60 day period to comment. A Public Notice of the proposed
case closure was mailed to the parties on 17 June 2016 and was posted on the Central
Valley Water Board website. No comments adverse to closure were received.
b) No groundwater monitoring or remediation wells were installed. The requirement to
destroy wells is not relevant.
c) Waste piles, drums, debris and other investigation derived materials have been removed
from the property and properly managed in accordance with regulatory agency
requirements.
Conclusions
Source hydrocarbon mass has been removed to the extent practicable. The release should not
have sufficient mobility to reach groundwater, which is very deep. The remaining effects of the
UST release are unlikely to threaten the present use of surface water, groundwater and public
health, and should continue to degrade naturally. Case closure is in accordance with the Policy
and the case closure requirements of Health and Safety Code section 25296.10. 1 recommend
that a standard underground storage tank release case closure letter be mailed to the
responsible party.