Utah Administrative Code
Topic - Environmental Quality
Title R315 - Waste Management and Radiation Control, Waste Management
Rule R315-319 - Coal Combustion Residuals Requirements
Section R315-319-94 - Groundwater Monitoring and Corrective Action - Detection Monitoring Program
Current through Bulletin 2024-06, March 15, 2024
(a) The owner or operator of a CCR unit shall conduct detection monitoring at all groundwater monitoring wells consistent with Section R315-319-94. At a minimum, a detection monitoring program shall include groundwater monitoring for all constituents listed in appendix III to Rule R315-319.
(b) Except as provided in Subsection R315-319-94(d), the monitoring frequency for the constituents listed in appendix III to Rule R315-319 shall be at least semiannual during the active life of the CCR unit and the post-closure period. For existing CCR landfills and existing CCR surface impoundments, a minimum of eight independent samples from each background and downgradient well shall be collected and analyzed for the constituents listed in appendix III and IV to Rule R315-319 no later than October 17, 2017. For new CCR landfills, new CCR surface impoundments, and all lateral expansions of CCR units, a minimum of eight independent samples for each background well shall be collected and analyzed for the constituents listed in appendices III and IV to Rule R315-319 during the first six months of sampling.
(c) The number of samples collected and analyzed for each background well and downgradient well during subsequent semiannual sampling events shall be consistent with Subsection R315-319-93(e), and shall account for any unique characteristics of the site, but shall be at least one sample from each background and downgradient well.
(d) The owner or operator of a CCR unit may demonstrate the need for an alternative monitoring frequency for repeated sampling and analysis for constituents listed in appendix III to Rule R315-319 during the active life and the post-closure care period based on the availability of groundwater. This demonstration shall be submitted and approved by the Director. If there is not adequate groundwater flow to sample wells semiannually, the alternative frequency shall be no less than annual. The need to vary monitoring frequency shall be evaluated on a site-specific basis. The demonstration shall be supported by, at a minimum, the information specified in Subsections R315-319-94(d)(1) and (2).
(e) If the owner or operator of the CCR unit determines, pursuant to Subsection R315-319-93(h) that there is a statistically significant increase over background levels for one or more of the constituents listed in appendix III to Rule R315-319 at any monitoring well at the waste boundary specified under Subsection R315-319-91(a)(2), the owner or operator shall:
(f) The owner or operator of the CCR unit shall comply with the recordkeeping requirements specified in Subsection R315-319-105(h), the notification requirements specified in Subsection R315-319-106(h), and the Internet requirements specified in Subsection R315-319-107(h).