Tenneco Oil Co. V. New Mexico Water Quality Control Commission

Tenneco Oil Company and Navajo Refining Company appeal from the New Mexico Water Quality Control Commission's adoption of regulations establishing numerical standards for fourteen organic compounds*fn1 in groundwater. The issues raised in this consolidated appeal are: (1) what standard of review should this court apply; (2) whether the Commission's decision was arbitrary, capricious, or an abuse of discretion, or otherwise not in accordance with law; and (3) whether the decision was based on substantial evidence. We affirm.