Fly Ash Pond

Design Criteria

In accordance with 40 CFR Part 257.73(a)(2), the Fly Ash Periodic Hazard Potential Classification Assessment is now complete and available in the on-site operating record and this website §257.107(f)(4).

In accordance with 40 CFR Part 257.73(e), the Fly Ash Safety Factor Assessment is now complete and available in the on-site operating record [40 CFR 257.105(f)(12)] and this website [40 CFR 257.107(f)(11)].

In accordance with 40 CFR Part 257.73(c)(1), the Fly Ash History of Construction is now complete and available in the on-site operating record [40 CFR 257.105(f)(9)] and this website [40 CFR 257.107(f)(8)].

In accordance with 40 CFR Part 257.73(d), the Fly Ash Structural Stability Assessment is now complete and available in the on-site operating record [40 CFR 257.105(f)(10)] and this website [40 CFR 257.107(f)(9)].

In accordance with 40 CFR Part 257.71, the Fly Ash Pond Clay Liner Evaluation is now complete and available in the on-site operating record [40 CFR 257.105(f)(2)] and this website [40 CFR 257.107(f)(3)].

In accordance with 40 CFR Part 257.73(d), the Fly Ash Structural Stability 5-yr Assessment is now complete and available in the on-site operating record [40 CFR 257.105(f)(10)] and this website [40 CFR 257.107(f)(9)].

In accordance with 40 CFR Part 257.73(e), the Fly Ash Safety Factor 5-yr Assessment is now complete and available in the on-site operating record [40 CFR 257.105(f)(12)] and this website [40 CFR 257.107(f)(11)]

In accordance with 40 CFR Part 257.73(a)(2), the Fly Ash Periodic Hazard Potential Classification 5-yr Assessment is now complete and available in the on-site operating record and this website §257.107(f)(4).

Fly Ash Periodic Hazard Potential Classification Assessment
Safety Factor Assessment & PE Certification
History of Construction for Fly Ash Pond
Fly Ash Pond Structural Stability Assessment
Fly Ash Pond Clay Liner Evaluation
Fly Ash Pond Structural Stability 5-yr Assessment
Fly Ash Periodic Hazard Potential Classification 5-yr Assessment
Safety Factor 5-yr Assessment & PE Certification

Location Requirements

Information will be posted as applicable requirements are reached and met.

In accordance with 40 CFR Part 257.60-64, The Fly Ash Location Restriction Demonstration is now complete and available in the on-site operating record and this website.

2020 Fly Ash Location Restriction Demonstration

Operating Criteria

Information will be posted as applicable requirements are reached and met. The Fugitive Dust Control Plan may be accessed from the Facility Wide CCR Documentation link.

In accordance with 40 CFR Part 257.83(b), the 2017 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.83(b), the 2018 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.83(b), the 2019 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.83(b), the 2020 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.83(b), the 2021 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.83(b), the 2022 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.83(b), the 2023 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.82, the Inflow Design Flood Control System Plan is now complete and available in the on-site operating record and this website §257.107(g)(4).

In accordance with 40 CFR Part 257.82, the Inflow Design Flood Control System Plan 5-yr Assessment is now complete and available in the on-site operating record and this website §257.107(g)(4).

2017 Fly Ash Pond Annual Inspection Report
2018 Fly Ash Pond Annual Inspection Report
2019 Fly Ash Pond Annual Inspection Report
2020 Fly Ash Pond Annual Inspection Report
2021 Fly Ash Pond Annual Inspection Report
2022 Fly Ash Pond Annual Inspection Report
2023 Fly Ash Pond Annual Inspection Report
Inflow Design Flood Control System Plan
Inflow Design Flood Control System Plan 5-yr Assessment

Groundwater Monitoring

In accordance with 40 CFR Part 257.91(f), Professional Engineer's Certification of Groundwater Monitoring System is now complete and available in the on-site operating record and this website [40 CFR 257.107(h)(2)].

In accordance with 40 CFR Part 257.91(f), Professional Engineer's 2021 Certification of Groundwater Monitoring System is now complete and available in the on-site operating record and this website [40 CFR 257.107(h)(2)].

In accordance with 40 CFR Part 257.93(f)(6), Professional Engineer's Certification of Groundwater Monitoring Statistical Method is now complete and available in the on-site operating record and this website [(40 CFR 257.107(h)(3)].

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.90(e), the 2019 Annual Groundwater Monitoring Report is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(1)].

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.90(e), the 2020 Annual Groundwater Monitoring Report is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(1)].

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.90(e), the 2021 Annual Groundwater Monitoring Report is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(1)].

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.90(e), the 2022 Annual Groundwater Monitoring Report is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(1)].

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.94(e)(1),(f), the 2022 Fly Ash Pond Notification of Assessment Monitoring Report is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(1)].

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.95(g), the 2023 Notification Identifying App IV Parameters that Exceed GWPS is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(6)]

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.95(g), the 2023 Notification of Assessment of Corrective Measures Initiation is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(6)]

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.90(e), the 2023 Annual Groundwater Monitoring Report is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(1)].

In accordance with 40 CFR 257.105(h)(1) and 40 CFR 257.90(e), the 2024 Annual Groundwater Monitoring Report is now complete and available in the on-site operating record and the website [40 CFR 257.107(h)(1)].

Additional information will be posted as applicable requirements are reached and met.

PE Certification of GW Monitoring System Design
PE Certification of FAP GW Monitoring System 2021
PE Certification of Statistical Method
2019 Annual Groundwater Monitoring Report
2020 Annual Groundwater Monitoring Report
2021 Annual Groundwater Monitoring Report
2022 Annual Groundwater Monitoring Report
2023 Annual Groundwater Monitoring Report
Notification of Assessment Monitoring FAP 11-22
Notification Identifying App IV Parameters that Exceed GWPS
Notification of Assessment of Corrective Measures Initiation
2024 Annual Groundwater Monitoring Report

Closure and Post-Closure

In accordance with USEPA 40 CFR Part 257, Section 106 – Notification Requirements, Sikeston Power Station has submitted this notification to initiate closure of our Fly Ash Pond, a CCR surface impoundment, to the Missouri State Director, as defined under 257.53. The inactive Fly Ash Pond is one of two CCR surface impoundments at the Sikeston Power Station (SPS). The other CCR surface impoundment, referred to as the Bottom Ash/Scrubber Sludge Pond, will remain an active CCR surface impoundment. As an inactive CCR surface impoundment, the inactive Fly Ash Pond will be closed under the requirements of 40 CFR 257.100, paragraph (b).

In accordance with 40 CFR Part 257.104, the Fly Ash Pond Initiate Closure Notification is now complete and available in the on-site operating record [40 CFR 257.107(i)(12)] and this website [40 CFR 257.107(i)(12)].

In accordance with 40 CFR Part 257.104, the Fly Ash Pond Post-Closure Plan is now complete and available in the on-site operating record [40 CFR 257.107(i)(12)] and this website [40 CFR 257.107(i)(12)].

In accordance with 40 CFR Part 257.102 (b), the revised Fly Ash Pond Closure Plan is now complete and available in the on-site operating record [40 CFR 257.105(i)(4)] and this website [40 CFR 257.107(i)(4)].

Fly Ash Impoundment Closure
Fly Ash Pond Post-Closure Plan
Fly Ash Pond Closure Plan
Fly Ash Impoundment Initiate Closure

-- Sikeston Power Plant --
1551 W. Wakefield Avenue | Sikeston, MO 63801
Phone: 573-471-5000 | info@sikestonpower.com | login