SCH Number,Lead Agency Name,Lead Agency Title,Lead Agency Acronym,Document Title,Document Type,Received,Posted,Document Description,Document Portal URL,Project Title,Contact Full Name,Contact Authority,Contact Job Title,Contact Email Address,Contact Address 1,Contact Address 2,Contact City,Contact State,Contact Zip Code,Contact Phone Number,Location Coordinates,Cities,Counties,County Clerks,Location Cross Streets,Location Zip Code,Location Total Acres,Location Parcel Number,Location State Highways,Location Waterways,Location Airports,NOC Has Non Late Comment,NOC State Review Start Date,NOC State Review End Date,NOC Development Type,NOC Local Action,NOC Project Issues,NOC Local Review Start Date,NOC Local Review End Date,NOE Exempt Status,NOE Exempt Citation,NOE Reasons for Exemption,NOD Agency,NOD Approved By Lead Agency,NOD Approved Date,NOD Significant Environmental Impact,NOD Environmental Impact Report Prepared,NOD Negative Declaration Prepared,NOD Other Document Type,NOD Mitigation Measures,NOD Mitigation Reporting Or Monitoring Plan,NOD Statement Of Overriding Considerations Adopted,NOD Findings Made Pursuant,NOD Final EIR Available Location 2006078029,"Toxic Substances Control, Department of",Department of Toxic Substances Control,,"Clean Harbors Westmorland Hazardous Waste Disposal Facility, Class II Permit Modification to Incorporate Changes to Existing Groundwater and Vadose Zone Monitor",NOE,7/5/2006,7/5/2006,The project changes existing groundwater and vadose zone monitoring program at the Clean Harbors Westmorland permitted hazardous waste disposal facility. Facility location and site maps are herein attached for reference.,https://ceqanet.opr.ca.gov/2006078029,"Clean Harbors Westmorland Hazardous Waste Disposal Facility, Class II Permit Modification to Incorporate Changes to Existing Groundwater and Vadose Zone Monitor",Hassan (Al) Batakji,Department of Toxic Substances Control,N/A,,Northern California Permitting & Corrective Action,8800 Cal Center Drive,Sacramento,CA,95826,9162553615,,,Imperial,,,,,,,,,,,,,,,,,Categorical Exemption,Section 15301,"These changes to the environmental monitoring program are not anticipated to pose a significant impact due to the long history of monitoring groundwater for contaminants which have been at background level or non-detectable. This change in environmental monitoring will not pose significant risk to human health or the environment because: 1. Discontinuing groundwater monitoring in the sixteen wells near WMU's 3, 5, 8, and 9 is a minor change considering that the area has been inactive with no hazardous waste disposal activity since 1995, and that an extensive groundwater monitoring network of wells throughout the site continue to be sampled and monitored. Also, quarterly groundwater monitoring was conducted from 1994 through 2004, which exceeds the 3 year regulatory requirement (CCR Title 22, section 66264.90(c)). 2. Over ten years of extensive characterization of groundwater from the former WMU's 3, 5, 8, and 9 (proposed LC-5) has been completed. This long history of monitoring groundwater provides strong evidence that the site has had no releases of contaminants from the former WMU's. 3. The change in groundwater sampling will still be consistent with the intent of state and federal regulations. These regulations consider less frequent monitoring of groundwater quality at facilities that have demonstrated over a long period of time that levels of groundwater contaminants are at background levels or non-detectable. 4. DTSC has determined, based upon an evaluation of past groundwater data, that semi-annual sampling frequency would provide acceptable assessment of groundwater quality. DTSC will continue to evaluate groundwater data at this site. Conditions of the Class II modification allow DTSC to increase the monitoring points and sampling frequency for an amount of time if there are changes from the expected results or there is a change in site conditions.",,,,,,,,,,,,