Design Criteria

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).

Location Requirements

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.

Operating Criteria

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).

Groundwater Monitoring

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.

Closure and Post-Closure

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)].