On March 7, 2018, the California Division of Oil, Gas and Geothermal Resources (“DOGGR,” or “Division”) published a notice to operators (“NTO”) regarding updated guidelines for oilfield water quality data.  The NTO outlines procedures for submission of oilfield water quality data by operators, including required notices, injectate samples, formation water samples, documentation and final report and certification processes.

Notably, the “Division requires that all sources of injection water be identified in a chemical analysis of the injection water and each receiving formation water in the area of the injection project be performed with the results submitted to the Division and the [local Regional] Water [Quality Control] Boards:

  • Prior to injection of a new or expansion of an existing project, or
  • Whenever the source of the injection water is changed, or
  • As directed by the Division or the Water Boards.”

Operators are required to conduct water quality testing in support of underground injection control project applications, aquifer exemption proposals, and certain other technical reports.  The NTO merely clarifies and revises the guidelines required for submission of this data.  Operators should be sure to comply with the requirements of the NTO in order to avoid potential violations or penalties from DOGGR.

Photo of Mike Mills Mike Mills

Mike Mills is an experienced environmental attorney who represents his clients in complex regulatory, compliance and litigation matters. His scientific background in environmental toxicology, as well as his contacts within California’s state regulatory agencies, make him ideally suited to provide effective and practical…

Mike Mills is an experienced environmental attorney who represents his clients in complex regulatory, compliance and litigation matters. His scientific background in environmental toxicology, as well as his contacts within California’s state regulatory agencies, make him ideally suited to provide effective and practical solutions to environmental, regulatory and sustainability challenges that his clients confront.

Mike is a former co-chair of the firm’s Energy and Natural Resources Industry Group, and his deep connections within California’s oil and gas industry span over two decades. Oil and gas clients appreciate Mike’s experience as they manage business growth and risks in the challenging regulatory environment in which they operate in California.

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