Grainger

• 257.100(f)(1)(i) Legacy Applicability Report
• Ash Pond 1 Report
• Ash Pond 2 Report

Existing facilities with impoundments were required to complete a Legacy CCR Impoundment Applicability Report no later than November 8, 2024. If no Legacy CCR Impoundments are identified at a facility, no Legacy Applicability Report is required.

• 257.75(c) Facility Evaluation Report Part 1
• 257.75(d) Facility Evaluation Report Part 2

Existing facilities are required to complete a Facility Evaluation Report Part 1 no later than February 9, 2026, and a Facility Evaluation Report Part 2 no later than February 8, 2027. 

Existing surface impoundments were required to complete Location Restrictions demonstrations no later than October 17, 2018. Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.71(a) - Liner Design Certification
• 257.73(a)(2) - Hazard Potential Classification
• 257.73(c) - Owner to document history of construction & any revisions
• 257.73(d) - Initial and periodic structural stability assessments
• 257.73(d)(2) - Corrective measures for deficiency or release
  • Only required if a deficiency or release occurs.
• 257.73(e) - Initial and periodic factor of safety assessments

 
Existing surface impoundments were required to complete Design Criteria demonstrations no later than October 17, 2016. Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.80(b) - Fugitive Dust Control Plan
• 257.80(c) - Annual Fugitive Dust Control Report
• 257.82(c) - Initial and Periodic Inflow Design Flood Control Plan
• 257.83(b)(2) - Annual Inspection Report
• 257.83(b)(5) - PE documents remedies for any deficiency or release found during the annual inspection

Existing surface impoundments were required to prepare a Fugitive Dust Control Plan and initiate annual inspections no later than October 19, 2015. The Initial Inflow Design Flood Control Plan was required no later than October 17, 2016. Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.90( e) - Annual Groundwater Monitoring and Corrective Action Report
• 257.91(f) - Certified groundwater monitoring system
• 257.93(f)(6) - Certified selected statistical method
• 257.94(e)(3) - Notification when assessment monitoring is established
• 257.95(e) - Notification to resume detection monitoring if results for Appendix III & IV constituents are below background
  • Demonstration to be completed as needed
• 257.95(g) - Notification if Appendix IV constituents have exceeded groundwater protection standards at statistically significant levels
  • Notification of Exceedance
• 257.95(g)(5) - Notification if Assessment of Corrective Measures has been initiated
  
  • Demonstration to be completed as needed
• 257.96 - Assessment of Corrective Measures Report
  
  • Demonstration to be completed as needed
• 257.97(a) - Semi-annual progress reports for selecting and designing a remedy and the Remedy Selection Report
  
  • Demonstration to be completed as needed
• 257.98(e) - Notification that the remedy is complete
  • Demonstration to be completed as needed

Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.102(b) - Written Closure Plan
• 257.102(f)(2) - Demonstration + owner certification for time extension to complete closure
• 257.102(g) - Notice of intent to close CCR unit
  • Notice of intent to initiate closure
• 257.102(h) - Notification that closure is complete
  • Demonstration to be complete within 30 days of completion

Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

Santee Cooper closed Ash Pond 1 by removal and does not plan to retrofit this unit into a new CCR surface impoundment; therefore, these criteria are not required.

Existing surface impoundments were required to complete Location Restrictions demonstrations no later than October 17, 2018. Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.71(a) - Liner Design Certification
• 257.73(a)(2) - Hazard Potential Classification
• 257.73(c) - Owner to document history of construction & any revisions
• 257.73(d) - Initial and periodic structural stability assessments
• 257.73(d)(2) - Corrective measures for deficiency or release
  • Only required if a deficiency or release occurs.
• 257.73(e) - Initial and periodic factor of safety assessments

 
Existing surface impoundments were required to complete Design Criteria demonstrations no later than October 17, 2016. Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.80(b) - Fugitive Dust Control Plan
• 257.80(c) - Annual Fugitive Dust Control Report
• 257.82(c) - Initial and Periodic Inflow Design Flood Control Plan
• 257.83(b)(2) - Annual Inspection Report
• 257.83(b)(5) - PE documents remedies for any deficiency or release found during the annual inspection

Existing surface impoundments were required to prepare a Fugitive Dust Control Plan and initiate annual inspections no later than October 19, 2015. The Initial Inflow Design Flood Control Plan was required no later than October 17, 2016. Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.90( e) - Annual Groundwater Monitoring and Corrective Action Report
• 257.91(f) - Certified groundwater monitoring system
• 257.93(f)(6) - Certified selected statistical method
• 257.94(e)(3) - Notification when assessment monitoring is established
• 257.95(e) - Notification to resume detection monitoring if results for Appendix III & IV constituents are below background
  • Demonstration to be completed as needed
• 257.95(g) - Notification if Appendix IV constituents have exceeded groundwater protection standards at statistically significant levels
  • Notification of Exceedance
• 257.95(g)(5) - Notification if Assessment of Corrective Measures has been initiated
  
  • Demonstration to be completed as needed
• 257.96 - Assessment of Corrective Measures Report
  
  • Demonstration to be completed as needed
• 257.97(a) - Semi-annual progress reports for selecting and designing a remedy and the Remedy Selection Report
  
  • Demonstration to be completed as needed
• 257.98(e) - Notification that the remedy is complete
  • Demonstration to be completed as needed

Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

• 257.102(b) - Written Closure Plan
• 257.102(f)(2) - Demonstration + owner certification for time extension to complete closure
• 257.102(g) - Notice of intent to close CCR unit
  • Notice of intent to initiate closure
• 257.102(h) - Notification that closure is complete
  • Demonstration to be complete within 30 days of completion

Because Grainger Station ceased generating operations in December 2012 it was not subject to the original CCR Rule applicability on October 19, 2015.

Santee Cooper closed Ash Pond 2 by removal and does not plan to retrofit this unit into a new CCR surface impoundment; therefore, these criteria are not required.