Commission debates subdivision rules, proposed 15,000 sq ft minimum and liability for engineered septics

County leaders spent a prolonged portion of the work session debating proposed subdivision regulations aimed at controlling growth and protecting infrastructure.

Chair and the county attorney discussed a draft approach that would set a higher minimum lot size (several commissioners referenced 15,000 square feet as a potential threshold) to reduce reliance on engineered "injection" septic systems that require pumps and ongoing maintenance. Commissioners expressed concern that those engineered systems can fail and that responsibility for maintenance (homeowner, installer, engineer) may leave the county to address downstream impacts on waterways and future municipal sewer expansions.

"If we maintain at least 15,000 square feet, that helps some of my things," the chair said, framing the proposal as a way to preserve lots where traditional septic systems have proven long-term performance. Commissioners and staff also explored options for grandfathering existing projects that have already spent money on infrastructure, and requiring documentation (proof of money spent) to qualify for exceptions.

The county attorney recommended holding targeted attorney/staff meetings and a formal subdivision work session to draft enforceable language addressing drainage, curb-and-gutter requirements tied to density, slope-based riprap, and the grandfathering process. Commissioners discussed cash bonds or other financial assurances to create a pool of funds available to correct substandard roads or failed systems.

Next steps: Staff and counsel will schedule the attorney-led workshop and a public work session to finalize the proposed regulations before moving toward formal adoption.