Chapter 13.20 ONSITE WASTEWATER DISPOSAL AND TREATMENT
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Sections:
- Article I. General Provisions
- Article II. Compliance Criteria
- 13.20.030 Compliance with wastewater system requirements.
- 13.20.040 Onsite wastewater systems to comply with rules.
- 13.20.050 Onsite wastewater system design and type considerations.
- 13.20.060 Types of treatment available to onsite wastewater systems.
- 13.20.070 Wastewater to receive primary treatment prior to discharge to absorption system.
- 13.20.080 Wastewater not allowed to surface on ground or enter state waters—Exception.
- 13.20.090 Wastewater not to be discharged into unused wells, gravel pits, or rock formations.
- 13.20.100 Drainage not to enter wastewater systems.
- 13.20.110 Protection of potable water supply.
- 13.20.120 Onsite wastewater system prohibited when public wastewater systems are available.
- 13.20.130 Review of plans prior to onsite wastewater system construction permit approval.
- Article III. Site Evaluation Requirements
- 13.20.140 Determination of acceptability of lot or site to support onsite wastewater system.
- 13.20.150 Separation required above ground water or geological formations.
- 13.20.160 Minimum lot size required.
- 13.20.170 Distance between onsite wastewater system components and pertinent ground features.
- 13.20.180 Onsite wastewater system construction permit application requirements.
- 13.20.190 Compliance with any other provisions of law.
- 13.20.200 Completed site plan.
- 13.20.210 Percolation tests required prior to approval and installation of absorption system.
- 13.20.220 Soil observation pits and soil borings.
- 13.20.230 Ground water determination.
- 13.20.240 Field evaluation.
- 13.20.250 Site evaluations during the platting stages.
- Article IV. Sensitive Regional Areas
- Article V. Design Flow Determination
- 13.20.290 System sizing.
- 13.20.300 Design flow.
- 13.20.310 Wastewater flow capacity requirements of residential and non-residential establishments.
- 13.20.320 Alternative method of determining wastewater flow capacity requirements for commercial or public service establishments.
- 13.20.330 Alternative method of determining wastewater flow capacity requirements for public parks and marinas.
- Article VI. Septic Tanks
- Article VII. Treatment of Effluent
- 13.20.370 Distribution of septic tank effluent to absorption fields.
- 13.20.380 Distribution pipes.
- 13.20.390 Gravity distribution.
- 13.20.400 Additional requirements for drop boxes, distribution boxes, or valve boxes.
- 13.20.410 Dual field systems.
- 13.20.420 Dosing or pressure systems required when absorption systems are large.
- 13.20.430 Dosing of effluent.
- 13.20.440 Dosing chamber, pump pit, wet well, or lift station.
- 13.20.450 Dosing devices for gravity distribution.
- 13.20.460 Dosing devices for pressure distribution.
- 13.20.470 Determining required absorption system area.
- 13.20.480 Alternative method of determining required absorption trench system area.
- 13.20.490 Class II dwelling sizing factors.
- 13.20.500 Requirements for absorption trenches.
- 13.20.510 Gravelless systems.
- 13.20.520 Chamber systems.
- 13.20.530 Requirements for absorption beds.
- 13.20.540 Additional criteria for design and construction of absorption systems.
- 13.20.550 Requirements for a mound or evapotranspiration system.
- 13.20.560 Requirements for graywater system.
- Article VIII. Alternative or Unconventional Systems
- 13.20.570 Holding tanks.
- 13.20.580 Requirements for vault privies.
- 13.20.590 Requirements for unconventional systems.
- 13.20.600 Unconventional systems to be used when water or electrical systems unavailable.
- 13.20.610 Absorption or alternative water-carriage system permitted under certain circumstances.
- 13.20.620 Seepage pits allowable.
- 13.20.630 Cesspool, pit privy or other failing systems.
- Article IX. State and Local Policies
- Article X. Management and Administration
- 13.20.670 Scope.
- 13.20.680 Purpose.
- 13.20.690 Objective.
- 13.20.700 Applicability.
- 13.20.710 Administration.
- 13.20.720 Interagency coordination.
- 13.20.730 Alternative systems.
- 13.20.740 Wastewater disposal.
- 13.20.750 Abandonment of onsite domestic wastewater disposal systems.
- 13.20.760 Standards applicability.
- 13.20.770 Applications.
- 13.20.780 Additional factors affecting the application process.
- 13.20.790 System observations.
- 13.20.800 Sewerage system permits.
- 13.20.810 Operations and maintenance requirements.
- 13.20.820 Materials prohibited in on-site wastewater facilities.
- 13.20.830 Appeal procedure.
- 13.20.840 Waiver of regulations.
- 13.20.850 Liability.
- 13.20.860 Conflict.
- 13.20.870 Penalties.
- 13.20.880 Severability.