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Title 6 — SANITATION AND HEALTH

Chapter 19 — ONSITE WASTEWATER TREATMENT SYSTEMS

Yolo County Municipal Code · 2026-09 edition · updated 2026-10-02 · Yolo County

Sec. 6-19.101. Legal authority.

Sec. 6-19.201. Purposes.

Sec. 6-19.301. Applicability.

Sec. 6-19.401. Alternative system.

Sec. 6-19.402. Appeal.

Sec. 6-19.403. Appeal Board.

Sec. 6-19.404. Applicant.

Sec. 6-19.405. As-built drawing.

Sec. 6-19.406. Authorized representative.

Sec. 6-19.407. Bedroom or potential sleeping room.

Sec. 6-19.408. Beneficial use.

Sec. 6-19.409. Building permit.

Sec. 6-19.410. Cesspool.

Sec. 6-19.411. Cluster system.

Sec. 6-19.412. Community system.

Sec. 6-19.413. Contamination.

Sec. 6-19.414. Contractor.

Sec. 6-19.415. Cumulative impacts.

Sec. 6-19.416. DEH.

Sec. 6-19.417. Director of Environmental Health.

Sec. 6-19.418. Dispersal field.

Sec. 6-19.419. Dispersal system.

Sec. 6-19.420. Division of Environmental Health (DEH).

Sec. 6-19.421. Domestic wastewater.

Sec. 6-19.422. Effective soil.

Sec. 6-19.423. Effluent.

Sec. 6-19.424. Expansion.

Sec. 6-19.425. Failing system.

Sec. 6-19.426. Final approval.

Sec. 6-19.427. Geotechnical report.

Sec. 6-19.428. Graywater.

Sec. 6-19.429. Graywater system.

Sec. 6-19.430. Groundwater.

Sec. 6-19.431. High strength wastewater.

Sec. 6-19.432. Holding tank.

Sec. 6-19.433. Industrial wastewater.

Sec. 6-19.434. Installation permit.

Sec. 6-19.435. Land use project.

Sec. 6-19.436. Large system.

Sec. 6-19.437. Lot.

Sec. 6-19.438. Manual.

Sec. 6-19.439. Minimum useable wastewater dispersal area (MUWDA).

Sec. 6-19.440. Non-discharging wastewater disposal unit.

Sec. 6-19.441. Onsite wastewater treatment system (system).

Sec. 6-19.442. Onsite Wastewater Treatment System Manual (Manual).

Sec. 6-19.443. Onsite Wastewater Treatment System Policy (OWTS Policy).

Sec. 6-19.444. Operating permit.

Sec. 6-19.445. Operation, Maintenance and Monitoring (OM&M) Program.

Sec. 6-19.446. Owner.

Sec. 6-19.447. Percolation test.

Sec. 6-19.448. Person.

Sec. 6-19.449. Portable toilet.

Sec. 6-19.450. Public nuisance.

Sec. 6-19.451. Public sewer system.

Sec. 6-19.452. Public water system.

Sec. 6-19.453. Qualified system designer.

Sec. 6-19.454. Qualified professional.

Sec. 6-19.455. Regional Water Quality Control Board.

Sec. 6-19.456. Replacement area.

Sec. 6-19.457. Seepage pit.

Sec. 6-19.458. Septage.

Sec. 6-19.459. Septage pumper.

Sec. 6-19.460. Septic tank.

Sec. 6-19.461. Service provider.

Sec. 6-19.462. Site evaluation.

Sec. 6-19.463. Site evaluation report.

Sec. 6-19.464. Site map review.

Sec. 6-19.465. Slope.

Sec. 6-19.466. Soil.

Sec. 6-19.467. Soil texture.

Sec. 6-19.468. Standard system.

Sec. 6-19.469. Subdivision.

Sec. 6-19.470. Substandard tank.

Sec. 6-19.471. Supplemental treatment.

Sec. 6-19.472. Supplemental treatment unit.

Sec. 6-19.473. System.

Sec. 6-19.474. System design.

Sec. 6-19.475. Unstable land mass.

Sec. 6-19.476. Vault privy.

Sec. 6-19.477. Vertical separation.

Sec. 6-19.478. Wastewater.

Sec. 6-19.479. Watercourse.

Sec. 6-19.480. Waterless toilet.

Sec. 6-19.501. Manual.

Sec. 6-19.502. Wastewater application rates and septic tank size.

Sec. 6-19.601. General requirements.

Sec. 6-19.602. System subjected to California Central Valley Regional Water Quality…

Sec. 6-19.603. Requirements for system contractor.

Sec. 6-19.604. Permits.

Sec. 6-19.605. Requirements for site evaluation.

Sec. 6-19.606. Requirements for siting, design, operation and maintenance.

Sec. 6-19.607. Approved sewage disposal required.

Sec. 6-19.608. General requirements for building permit application using existing system.

Sec. 6-19.609. General requirements for business license application using existing…

Sec. 6-19.610. Prohibitions.

Sec. 6-19.611. Minimum horizontal setbacks.

Sec. 6-19.612. Minimum vertical setbacks.

Sec. 6-19.613. Construction inspections.

Sec. 6-19.614. Unauthorized work.

Sec. 6-19.615. Abatement.

Sec. 6-19.616. Required notification of system failure.

Sec. 6-19.617. Required notification of a system installation.

Sec. 6-19.618. Abandoned system.

Sec. 6-19.619. Refusal to finalize building permit for occupancy.

Sec. 6-19.620. Cesspools, seepage pits, and substandard tanks.

Sec. 6-19.621. Holding tanks; portable toilets; vault privy.

Sec. 6-19.622. Cumulative impacts.

Sec. 6-19.623. Property improvements and system expansion.

Sec. 6-19.624. Replacement of the dispersal field.

Sec. 6-19.701. Use of alternative systems.

Sec. 6-19.702. Installation permit and review requirements for alternative systems.

Sec. 6-19.703. Operation, maintenance and monitoring (OM&M) requirements.

Sec. 6-19.801. Non-discharging wastewater disposal units may be allowed under limited…

Sec. 6-19.802. Owners of non-discharging wastewater disposal units approved after the…

Sec. 6-19.803. Owners of non-discharging wastewater disposal units shall maintain the…

Sec. 6-19.804. Setbacks for non-discharging wastewater disposal units shall be the same…

Sec. 6-19.901. Graywater systems.

Sec. 6-19.1001. Permitting, inspection and reporting requirements.

Sec. 6-19.1101. Land use project.

Sec. 6-19.1201. Connection to public sewer system required.

Sec. 6-19.1301. Areas with potential for groundwater pollution.

Sec. 6-19.1302. Areas with impacted groundwater.

Sec. 6-19.1401. Report requirements.

Sec. 6-19.1402. Records retention.

Sec. 6-19.1403. Water quality assessment program.

Sec. 6-19.1501. Enforcement.

Sec. 6-19.1502. Right of Entry.

Sec. 6-19.1503. Notice of violation.

Sec. 6-19.1504. Cease and desist orders.

Sec. 6-19.1505. Penalties.

Sec. 6-19.1601. Appeals procedure.

Sec. 6-19.1701. Severability.

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