PSC approves Madison Water rate adjustments, denies extension of 'Madcap' pilot and authorizes $3.5M cash adder

The Public Service Commission approved Madison Water Utility's rate adjustments in docket 3280 WR 117 after a series of contested and uncontested decisions that shaped the final order.

Commission chair Strand summarized the case history and staff reviews, saying the utility had requested a 15.94% overall revenue increase that was reduced by the PSC staff audit to 9.89% before commissioners finalized the revenue requirement. The Commission's deliberations addressed several contested issues, including whether to authorize continuing the Madcap customer‑assistance pilot, the level of a temporary cash adder to support the utility's capital plan, and whether to reapply order conditions tied to expense‑depreciation accounting.

On the most contested item, the Commission declined to authorize an extension of Madcap. Chair Strand said the record lacked evidence that the pilot had delivered the system‑wide benefits the earlier order anticipated and observed the program had not met the reporting metrics required for evaluation. "Authorizing the continuation of a pilot program that is clearly not meeting its intended metrics and does not have a clear path to success is antithetical to commission precedent and process," Strand said. Commissioners Nieto and Hawkins echoed concerns that participation was lower than projected, that conservation requirements were limiting enrollment, and that the data did not show measurable reductions in arrears or operational savings.

Commissioners also discussed practical unwinding mechanics if the pilot were discontinued: they agreed the program should stop accepting new enrollees as of the effective date of the new tariffs, allow a bounded transition period for existing enrollees, and direct staff to work with the utility on customer communications. Commissioners suggested a not‑to‑exceed three‑month unwinding window after the tariffs' effective date.

On the financial items, the Commission authorized continuation and expansion of Madison Water's main‑replacement expense‑depreciation program and agreed to reapply six order conditions from the prior rate case to ensure reporting and guardrails. The Commission also authorized a reduced cash adder of $3,500,000 (staff had recommended that amount) instead of the applicant's requested $6,228,131, citing the utility's improving capital structure (projected at 48.51% municipal equity and 51.49% long‑term debt for the test year) and the desire to balance customer impacts with financial stability.

The Commission continued requiring an order condition for prompt notification of cost overruns: the utility must notify the Commission within 30 days if a construction project's cost is projected to exceed estimates by more than 5% (the utility had sought a 10% threshold). Commissioners cited the Commission's broader investigation into cost overruns and the need for tighter oversight.

A commissioner moved that the Commission approve Madison Water's rate adjustments consistent with the discussion; the motion was seconded and approved by unanimous voice vote. The order adopts the positions discussed above — denial of Madcap's extension, authorization of the $3.5 million cash adder, continuation of the expense‑depreciation program with conditions, and continued cost‑overrun notification requirements.

Next steps: the order will specify effective tariff dates and direct staff and the utility to coordinate the unwinding timeline and customer notices for the Madcap pilot; the Commission also noted Madison Water will be subject to ongoing biennial filings under the standard order condition requiring a conventional rate case within two years.