Data and Analysis:
Gold King Mine 2015 Release

• Evaluation of UDEQ Water Quality Data Collected during Spring Runoff following the Gold King Mine Release (June 21, 2016)
  DWQ summary of water quality in the San Juan River during the months of February, March, April, and the first week of June, 2016.
• Evaluation of UDEQ Water Quality Data Collected during Spring Runoff following the Gold King Mine Release (May 17, 2016)
  DWQ summary of water quality in the San Juan River during the months of February, March, April, and the first week of May, 2016.
• Evaluation of UDEQ Water Quality Data Collected in Response to the Gold King Mine Release (February 10, 2016)
  DWQ summary of water quality showing immediate effects of the release and metals concentrations in the San Juan River during fall storms
• Evaluation of UDEQ Sediment Data Collected in Response to the Gold King Mine Release (February 10, 2016)
  DWQ summary of sediment data collected before and after the expected arrival the plume in Utah.
• Evaluation of USEPA Water Quality Data for Dissolved Metals Collected in Response to the Gold King Mine Release (February 10, 2016)
  DWQ summary of EPA publically data and comparison to Utah’s water quality criteria and agricultural screening values.
• Analysis of Immediate Effects (08/19/15)
  DWQ summary of its preliminary analysis of the immediate,short-term, effects of the Gold King Mine release on water quality in the San Juan River, Utah
• Sampling Results (08/26/15)
  DWQ sampling results received to date. Each sampling event is summarized in the UDWQ GKM Sampling_082615 files (xls, pdf) and each sampling event has an associated Excel data file and a PDF report from the laboratory. Includes a PDF that contains sampling site information and a map with DWQ sampling locations.
• Screening Values Analysis Sediment Samples (09/16/15)
  Screening values used in the evaluation of San Juan River, Utah, sediment samples.
• Screening Values Analysis Water Quality Samples (09/16/15)
  Screening values used in the evaluation of San Juan River, Utah, water quality samples.
• Statement of Evaluation (below) (08/12/15-09/02/15)
  Summaries provided by the Utah Department of Health (UDOH) Environmental Epidemiology Program (EEP) of their analysis of San Juan River, Utah, water testing by DWQ following the Gold King Mine release.
• Water Quality Trend Graphs (08/19/15)
  Total metals trend graphs from water quality samples taken from the San Juan River, Utah, following the Gold King Mine release.

Statement of Evaluation

• Statement of Evaluation for San Juan River Data (09/02/15)
• Statement of Evaluation for San Juan River Data (08/19/15)
• Statement of Evaluation for San Juan River Data (08/16/15)
• Statement of Evaluation for San Juan River Data (08/15/15)
• Statement of Evaluation for San Juan River Data (08/14/15)
• Statement of Evaluation for San Juan River Data (08/13/15)
• Statement of Evaluation for San Juan River Data (08/12/15)