• The incident happened during the completions process when transitioning from installing a tubing hanger to installing an adapter flange lower master valve. Our preliminary assessment indicates that the incident was caused by a failure of wellhead equipment at the surface and was not related to fracking or downhole operations.   A root cause analysis into the precise causes of the incident is nearing completion. Chevron has installed a secondary barrier downhole during new tubing installations to mitigate against reoccurrence.
• We will share the findings in accordance with regulatory agencies’ requirements.

This took place during completions, and not during fracking. There was no pipeline failure. Chevron will communicate its findings to relevant agencies upon completion of its investigation.

• Our preliminary assessment indicates that the incident was caused by a failure of wellhead equipment at the surface and was not related to fracking or downhole operations.  While our thorough root cause analysis is ongoing, Chevron has installed a secondary barrier downhole during new tubing installations to mitigate against reoccurrence.
• A root cause analysis into the precise causes of the incident is nearing completion. We will share the findings in accordance with regulatory agencies’ requirements.

• None of the other wells on location are currently producing, and all are in a safe state. They do not pose a safety risk at this time.  

• A Unified Command managed the initial response, comprised of the Weld County Office of Emergency Management, Chevron, the Galeton Fire Protection District, and the Environmental Protection Agency.
• On April 28, Chevron transitioned from Incident Management Team (IMT) into a Project Management Team (PMT) approach.
• Participating agencies include Colorado Energy and Carbon Management Commission, Colorado Department of Public Health and Environment, Weld County Department of Public Health and Environment, Weld County Sheriff’s Office, Colorado State Patrol, Colorado Fire Prevention and Control, Colorado Parks and Wildlife, U.S. Department of Agriculture, Colorado Department of Agriculture, and the Colorado Division of Homeland Security and Emergency Management.

• The members of the Unified Command worked together to coordinate response efforts and share information. Chevron is currently managing the reclamation phase.

• On April 11, 2025, the Bishop Well was safely sealed, which fully secured the well. The well was initially contained at approximately 3:30 p.m. MST on April 10, 2025. 
• The response to this incident began almost immediately and involved extensive planning and preparation to safely manage and resolve the incident.
• Air monitoring was conducted on and around the well site and in the voluntary exclusion zone. To date, all results remain below levels of concern.
• The incident site has been cleared and equipment demobilized, and reclamation activities continue.

• The discharge was approximately 80% water and 20% gas and oil.  
• Chevron discloses the chemicals we use on a third-party site called FracFocus which is a public website.

• Our priority remains getting those residents who have relocated back into their homes.
• We continue to make good progress in our cleaning efforts of both homes and properties and have multiple home cleanings in the final stages. The timing of the completion of home cleanings depends on the scope of work.
• Out of the 14 homes relocated within the voluntary evacuation zone, five residents are in their homes. We expect more residents to return to their home within a matter of days or weeks once the cleaning process is complete.
• Our cleaning process includes the use of a water and degreasing agent combination that is comprised of natural ingredients and is biodegradable. We are also using a mixture of Dawn detergent and water on vegetation. All liquids from the cleaning process are collected for disposal.
• Chevron has been working individually with all impacted property owners and tenants, providing specialized teams that are available in person throughout the week to help answer questions and concerns. Recognizing that each property requires a separate plan, we have assigned case managers to residents to help personalize and customize our approach.
• In regard to the Bishop well site, we are moving soil as part of our reclamation efforts.

• We don’t expect there to be ongoing risks to your animals from any remaining residue. When the team assesses your residence, point out areas your pet accesses to determine the next steps, which can be addressed during the exterior cleaning phase.
• Should have any additional questions, please call Bishop Well Incident claims line at 877-359-1285.

• Air monitoring continues in and around the area surrounding the site and the community, and all measurements we received from the laboratories have been below levels of concern. 
• If you have questions about your specific situation or condition, you can call your medical provider. 

• Contamination of drinking water wells from this incident is unlikely.  
• If you have concerns about your livestock, contact your veterinarian. If you have been impacted, please contact the Bishop Well Incident Claims Line at 877-359-1285.   

• If you have concerns about your livestock, contact your veterinarian. If you have been impacted, please contact the Bishop Well Incident Claims Line at 877-359-1285.   

• We are following the state’s regulatory requirements for soil and water sampling.
• Surface water samples are being collected upstream and downstream of the site.  Ambient air samples continue to be collected.

• Chevron is not  aware that any sources of drinking water have been affected. 
• We have supported EPA and ECMC assessments and worked with the Corp of Engineers to help validate flow allowances into Willow Creek and our project team will continue to provide on-going support.

• It is unlikely that well water would be affected by this incident. If you have concerns about your well, Weld County Department of Public Health and Environment has a free testing program. You can learn more about this service on the Weld County website. However, the presence of any contaminants in your well water does not necessarily mean that your well was affected by this incident. A proper evaluation of the source of any contaminants would still have to be done.  

• Numerous governmental agencies are monitoring this incident and wildlife in the area. This includes state veterinary services, Colorado Parks and Wildlife, and Colorado Department of Agriculture. 

As part of the ECMC remediation and reclamation process, Chevron is required to provide an estimated date of completion. We provided a conservative estimate given that the sampling and plan development is still ongoing. The exact timeline of the remediation, monitoring, and reclamation steps for each site will be updated as we get additional data and finalize plans.

• Our priority remains getting those residents who have relocated back into their homes.
• We continue to make good progress in our cleaning efforts of both homes and properties and have multiple home cleanings in the final stages. The timing of the completion of home cleanings depends on the scope of work.
• Out of the 14 homes relocated within the voluntary evacuation zone, five residents are in their homes. We expect more residents to return to their home within a matter of days or weeks once the cleaning process is complete.
• Our cleaning process includes the use of a water and degreasing agent combination that is comprised of natural ingredients and is biodegradable. We are also using a mixture of Dawn detergent and water on vegetation. All liquids from the cleaning process are collected for disposal.
• Chevron has been working individually with all impacted property owners and tenants, providing specialized teams that are available in person throughout the week to help answer questions and concerns. Recognizing that each property requires a separate plan, we have assigned case managers to residents to help personalize and customize our approach.

• As required by ECMC, Chevron submitted a Form 27 (Site Investigation and Remediation Plans) estimating total barrels recovered from the incident. This reported volume of 101,077 barrels consists of liquids recovered from the well site. This includes liquid from equipment decontamination and stormwater collection. It is industry practice to report unit measurements in barrels. Chevron will continue to comply with all regulatory reporting requirements.
• Any remediation work potentially needed is still under development.  Remediation work plans are submitted to ECMC for review prior to work commencing.  Chevron remains fully committed to remediating the well site. 
• Approximately 25,272 cubic yards of solids have been removed from the well site as part of the initial response activities.  This removal activity continues as part of our overall recovery efforts.
• All recovered waste is transported to a third-party disposal site for proper disposal, which is consistent with normal operational activities. The volume of liquid recovered is a separate measurement than the liquid volume that was released from the well.  The details of the well release are still under review.

• All recovered waste is transported to a third-party disposal site for proper disposal, which is consistent with normal operational activities.

• Yes.
• At Greeley Canal #2, Chevron along with NCLP (New Cache La Poudre), conduct weekly site walks along the canal performing visual impact assessments. Under an agreement with NCLP, we have also implemented a surface water sampling process to collect samples upstream and downstream of the site to determine if there are impacts. We cooperate with appropriate regulatory authorities to assess the data.
• At Willow Creek, we continue to collect samples taken from both upstream and downstream of the site. We cooperate with appropriate regulatory authorities to assess the data.