Discount Rate – The discount rate used to measure the total pension liability (asset) was 7.00%. The projection of cash flows used to determine the discount rate assumed that employee contributions will be made at the contractually required rate and that contributions from the County will be made at contractually required rates, actuarially determined. Based on those assumptions, IPERS' fiduciary net position was projected to be available to make all projected future benefit payments of current active and inactive employees. Therefore, the long-term expected rate of return on IPERS' investments was applied to all periods of projected benefit payments to determine the total pension liability (asset).

Sensitivity of the County's Proportionate Share of the Net Pension Liability (Asset) to Changes in the Discount Rate – The following presents the County's proportionate share of the net pension liability (asset) calculated using the discount rate of 7.00%, as well as what the County's proportionate share of the net pension liability (asset) would be if it were calculated using a discount rate that is 1% lower (6.00%) or 1% higher (8.00%) than the current rate.

1% Decrease (6.00%)Discount Rate (7.00%)1% Increase (8.00%)
County's proportionate share of the net pension liability (asset)$ 14,739,552$ 4,552,124$ (4,404,794)

IPERS' Fiduciary Net Position – Detailed information about the pension plan's fiduciary net position is available in the separately issued IPERS financial report which is available on IPERS' website at www.ipers.org.

Payables to IPERS – All legally required County contributions and legally required employee contributions which had been withheld from employee wages were remitted by the County to IPERS by June 30, 2023.

Note 10 - Other Postemployment Benefits (OPEB)

Plan Description – The County operates a single-employer retiree benefit plan which provides medical/prescription drug benefits for retirees and their spouses. Group insurance benefits are established under Iowa Code Chapter 509A.13. No assets are accumulated in a trust that meets the criteria in paragraph 4 of GASB Statement No.75. The plan does not issue a stand-alone financial report.

OPEB Benefits -The medical/prescription drug coverage, which is a partially self-insured medical plan, is administered by Wellmark BCBS. Retirees under age 65 pay the same premium for the medical/prescription drug benefit as active employees, which results in an implicit rate subsidy and an OPEB liability.

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