The Office of Spill Prevention and Response and Crimson Pipeline formed a Unified Command to oversee cleanup operations following a pipeline spill in Ventura on June 23. The oil was quickly contained in the Hall Creek channel before it could reach the ocean.


At the beginning of the response, the length of the spill was sectioned into Divisions A, B, C and D to manage varying conditions in different areas. (Spill Division Map) Patriot Environmental Services and National Response Corporation Environmental Services removed oil from the spill area with vacuum trucks, hand shoveling, and other mechanical methods. Cleanup work is continuing within current projected timeline for oil cleanup to be completed around September 23, followed by remediation and restoration of the area.

Division A –Recommendations have been submitted for some additional excavation in this area, and work assignments are being developed.

Division B –Additional excavation is occurring with guidance from geotechnical experts.

Division C –Crews will excavate and clean boulders and cobble in a 30 ft. stretch of the upstream portion of the exclusion zone, an area identified as a more dangerous zone owing to an adjacent steep, canyon wall with falling rocks and debris. Work will include the necessary measures to ensure a safe operation.

Division D – No observable impacts from oil were documented. Integrity of containment berms will be monitored and maintained.


All oil estimates are as of July 30.  Contaminated soil continues to be removed and oil estimates will be revised over time. Estimates of oil remaining at the spill site are made by measuring liquid oil reclaimed, estimating the amount evaporated (based on NOAA’s ADIOS model), and analyzing oil coated  vegetation and soil to derive a close approximation of oil content in excavated materials. Of the reported 44,772 gallons spilled, it is estimated that approximately 6,619 gallons have not been recovered as of July 30.

The Oil Recovery Assessment Pie Chart illustrates estimates of spilled oil that were recovered, evaporated, or remain onsite.


The cleanup phase of the Grove Incident response is nearing its conclusion. By early September, Unified Command expects to begin the sign-off process certifying that cleanup is finished in individual parcels. By the second half of September, the remediation plan is expected to be in place, and restoration will begin. All restoration work is expected to be concluded by the second half of October, at which point the response will begin its monitoring stage.


  • For any safety concerns contact the Grove Incident Neighborhood Response at (805) 833-0177.
  • Residents wishing to file a claim can do so via email at claims@crimsonpl.com or by calling (562) 285-4128.
  • Visit Cal Spill Watch for more information.