Satellite measurements show huge drop in groundwater aquifers in California's Central Valley

By Thomas H. Clarke, Jr. For the last three years, California has been experiencing a major drought; only this season has the rainfall been "normal", probably due to El Nino. Yet, during the last six years, even before the onset of the drought, crop irrigation in California's Central...

California's OEHHA sets a Public Health Goal for Chrome-6 at 0.02 ppb

Hexavalent Chromium (aka Chrome-6 or Cr-6) is a known human carcinogen when inhaled; there has been considerable debate in recent years regarding its toxicity if ingested. Cr-6 has been used in the past as an anti-microbial on cooling towers. Chromium compounds are also used 1) in the fabrication...