Board steers Westport sewer rate study toward 90% O&M assumption to limit rate increases

Clatsop County engineers and consultants presented a Westport Sewer District rate study and the board directed staff to pursue a conservative financial plan that assumes a 90% O&M spend rate to reduce near‑term rate pressure on customers.

County engineer Dean Keran and consultant Teresa laid out baseline inputs: roughly 70 residential accounts, seven commercial accounts and three reduced‑use (vacant) properties; a beginning fund balance of about $280,000; and roughly $750,000 in prior grants and ARPA funding for system improvements. Staff said full capital upgrades would rely on grant funding and that a key external threshold for subsidized funding is an affordability target (previously estimated at $66.40 per billing unit versus the district's current $60 rate).

Consultants ran two scenarios. Scenario A would cover full projected O&M costs and required about 6% annual rate increases in the near term before tapering to 5% in later years; reserves would be drawn down to meet targets before stabilizing. Scenario B assumed a 10% reduction in O&M spending (based on historic under‑expenditure and program efficiencies), which lowered necessary rate increases to about 3.5% annually and drew reserves down more slowly.

Dean Keran explained that the district has limited spare capacity and that several minor repairs (septic pump replacements, UV bulb procurement) and recent operational changes have helped improve reliability. County staff also noted the district has applied for additional federal and state grants and a congressionally directed spending request could offset future capital needs.

Commissioners repeatedly expressed concern about rate shock for Westport residents. Chair and a majority of commissioners indicated support for the 90% O&M assumption to limit the proposed annual increases, and the board asked staff to proceed with that scenario when developing final rate alternatives and a public hearing package.

What happens next: staff will develop cost‑of‑service analyses and rate options under the preferred financial plan and return with a draft rate ordinance and public hearing schedule.