Design Criteria

In accordance with 40 CFR Part 257.73(a)(2), the Bottom 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(c)(1), the Bottom Ash History of Construction is now complete and available in the on-site operating record and this website §257.107(f)(8).

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

In accordance with 40 CFR Part 257.73(e), the Bottom Ash Safety Factor Assessment is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.73(a)(2), the Bottom 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).

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

In accordance with 40 CFR Part 257.73(e), the Bottom Ash Safety Factor 5-yr Assessment is now complete and available in the on-site operating record and this website.

Location Requirements

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

Operating Criteria

In accordance with 40 CFR Part 257.83(b), the 2015 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 2016 Annual Inspection Report is now complete and available in the on-site operating record and this website.

In accordance with 40 CFR Part 257.73(a)(3), the 2017 Emergency Action Plan for the Bottom Ash Pond is now complete and available in the on-site operating record and this website.

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).

In accordance with 40 CFR Part 257.73(a)(3), the 2022 Emergency Action Plan for the Bottom Ash Pond is now complete and available in the on-site operating record and this website.

Groundwater Monitoring

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 2017 Annual Groundwater Monitoring and Corrective Action 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 2018 Annual Groundwater Monitoring and Corrective Action 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 2019 Annual Groundwater Monitoring and Corrective Action 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 and Corrective Action 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 and Corrective Action 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 and Corrective Action 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 2023 Annual Groundwater Monitoring and Corrective Action 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.

Closure and Post-Closure

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