Association of Irritated Residents v. San Joaquin Valley Unified Air Pollution Control District, 168 Cal. App. 4th 535 (Cal. Ct. App. 2008)

(court reversed denial of writ of mandamus and defendant ordered to complete assessment concerning public health impacts of state rule requiring large confined animal facilities to choose from a variety of mitigation measures with the goal of reducing VOC emissions, where: (1) rule was adopted without conducting an adequate assessment of its impact on public health, as required by state law; (2) the state law requirement was intended to address the district’s failure to meet federal and state ambient air quality standards for ozone and does not regulate ammonia emissions produced by large confined animal facilities; and (3) the trial court’s findings were not arbitrary and capricious).