Precision Optical Incorporated (POI)
Summary
SCH Number
2017068357
Public Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
Precision Optical Incorporated (POI)
Document Type
NOE - Notice of Exemption
Received
Posted
6/21/2017
Document Description
DTSC, pursuant to regulatory authority granted under Health and Safety Code, Chapter 6.8, is approving RAW for the precision optical incorporated site. The site was historically used by POI to manufacture optical components, assembles, and coatings used in the photolithography, laser, biomedical, aerospace, data storage, and meteorology industries. Otting is the owner of the subject property. Chemical uses at the site have included chlorinated solvents, specifically PCE. Due to historical use of PCE and other chemicals at the site, the DTSC requested POI to complete soil, soil gas, and groundwater sampling as part of the local groundwater issues with the "Costa Mesa Site Discovery Project" and to define the extent of PCE-impacted soil at the site.
The RAW proposes excavation and off-site disposal of shallow impacted soils to reduce the concentrations of contaminants in limited areas of the site. If necessary, other remedial alternatives would need to be used to mitigate deeper soils in conjunction with excavation activities. Soil vapor extraction is a cost effective and viable alternative for remediation of VOC impacted soil gas. The SVE system can remediate shallow and deep impacted soils throughout the vadose zone. Based on the results of the pilot study, SVE tech is a feasible alternative. Regulatory permitting will be required through the South Coast Air Quality Management District.
Contact Information
Name
Hossein Nassiri
Agency Name
Department of Toxic Substances Control
Contact Types
Lead/Public Agency
Phone
Location
Cities
Costa Mesa
Counties
Orange
Notice of Exemption
Exempt Status
Other
Type, Section or Code
15061b3
Reasons for Exemption
DTSC has determined with certainty that there is no possibility that the activity in question may have a significant effect on the environment b/c the project would not result in "a substantial, or potentially substantial, adverse change in any of the physical conditions within the area affected by the project, including land, air, water, minerals, flora, fauna, ambient noise, and objects of historic or aesthetic significance."
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