Variance For Less Frequent Sampling and Reduced Scope of Groundwater Quality Monitoring Points for the E.I. DuPont de Nemours and Company
Summary
SCH Number
2009098089
Public Agency
California Department of Toxic Substances Control
(DTSC)
Document Title
Variance For Less Frequent Sampling and Reduced Scope of Groundwater Quality Monitoring Points for the E.I. DuPont de Nemours and Company
Document Type
NOE - Notice of Exemption
Received
Posted
9/9/2009
Document Description
The variance allows DuPont to continue a groundwater monitoring program with less frequent sampling and a reduced scope of monitoring points compared to what is otherwise required by regulations at its facility at 6000 Bridgehead Road, Oakley, California (the Facility). Specifically, the variance allows DuPont to 1) conduct semi-annual rather than qarterly sampling at all current post closure care monitoring points established under Article 6 (Cal. Code Regs. tit 22, art. 6, section 66265.99(e)(3), Water Quality Monitoring); and 2) limit annual Appendix IX (Cal Code Regs. tit 22. section 66265.99(e)(6), Appendix IX) groundwater sampling to the designated group of point of compliance (POC) wells, rather than at all Article 6 monitoring points.
Contact Information
Name
Peter Ruttan
Agency Name
Department of Toxic Substances Control
Contact Types
Lead/Public Agency
Phone
Location
Cities
Oakley
Counties
Contra Costa
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301
Reasons for Exemption
This reduction in the frequency and scope of groundwater sampling/monitoring is a minor change from the sampling/monitoring regulatory requirementsfor an inactive facility.
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