Weld County, Colorado septic permits and requirements

Permitting authority

Weld County Department of Public Health and Environment — Environmental Health Services Division

Weld County Department of Public Health and Environment, Environmental Health Services Division; OWTS questions: 970-400-6415. The division oversees OWTS permitting for systems with design flows below 2,000 gallons per day.

Colorado state and local framework

Colorado Regulation 43 establishes statewide minimum standards for onsite wastewater treatment systems. Colorado law also requires local boards of health to adopt detailed OWTS rules for their jurisdictions consistent with state requirements, so the county or local public-health agency is the key permitting authority for ordinary residential systems and may impose locally adopted procedures or requirements.

Environmental Health Services administers local OWTS permits

Weld County states that its Environmental Health Services Division oversees permitting for onsite wastewater treatment systems with flows below 2,000 gallons per day, including site evaluations, design review, and inspections. County policy favors public sewer where feasible and limits OWTS to locations where public sewer is not feasible.

New systems, repairs, upgrades, reconnections, and vaults use county applications

Weld County requires an application to install a new system, repair or upgrade an existing system, reconnect to an approved existing system, or install a vault. Vaults are allowed only in specific circumstances, so applicants are directed to confirm eligibility with Environmental Health before relying on that option.

The permit package requires site and design documentation

Weld’s published requirements include the septic information form and fee plus a site-and-soils evaluation, design document, engineered design when necessary, site plan, and parcel number. The county states that qualifying site and soil information less than ten years old may be accepted.

Bedroom additions can require an OWTS evaluation and inspection

For residences served by OWTS, Weld County requires an OWTS evaluation and inspection when a building-permit application increases the number of bedrooms. The process includes the county evaluation form and a pumping receipt from within the prior two years from a septic cleaner licensed by the Health Department.

Weld does not mandate a transfer-of-title septic inspection

Weld County expressly states that it does not have a mandatory Transfer of Title Inspection or Use Permit program. The county recommends inspection and tank cleaning before ownership changes, but distinguishes that recommendation from a county requirement.

Older or undocumented systems may require a Statement of Existing

For certain loan or owner-requested evaluations, Weld states that if no permit is on file, or an old permit lacks a system diagram, a notarized Statement of Existing must document the system size, type, and location. This can be relevant when historic records are incomplete.

Official sources

SepticScope summarizes public-agency information for planning purposes. The permitting agency's current instructions control if they differ from this guide.