It begins two feet outside the building wall and conveys sewage from the building drain to the remaining portions of the on-site sewage system. “Building sewer” means that part of the horizontal piping of a drainage system extending from the building drain, which collects sewage from all the drainage pipes inside a building, to an on-site sewage system. “BOD” means biochemical oxygen demand, typically expressed in mg/L. “Bedroom” means any enclosed room of 70 square feet or more that is not designated as a kitchen, living/family room, utility room, office, bathroom, or dining room adjacent to the kitchen. “Bed” means a soil dispersal component consisting of an excavation with a width greater than three feet. “Approved” means a written statement of acceptability issued by the health officer or WDOH. Properly operated and maintained alternative systems provide equivalent or enhanced treatment performance as compared to conventional gravity systems. “Alternative system” means an on-site sewage system other than a conventional gravity system or conventional pressure distribution system.
“Aerobic treatment unit (ATU)” means a container which provides enhanced aerobic biodegradation or decomposition of sewage by bringing the sewage into contact with air by some mechanical or nonmechanical means, e.g., air pumps, air injectors, fabric, grids, gravel, pipes or rotating disks. “Additive” means a commercial product added to an on-site sewage system intended to affect performance or aesthetics of an on-site sewage system. Any subsequent amendment to Chapter 246-272A WAC shall be considered to have been incorporated into this chapter without the need for further amendment. If a conflict arises between Chapter 246-272A WAC and this chapter, the more restrictive regulation shall prevail. 24.05.030 Adoption by reference.Ĭhapter 246-272A WAC, On-Site Sewage System Rules and Regulations, is hereby adopted by reference. Under RCW 70.05.060(7), fees may be charged for this administration. The health officer shall administer this chapter under the authority and requirements of Chapters 70.05, 70.08, 70.46, and 43.70 RCW.
24.05.010 Purpose, objectives, and authority.Ī. The purpose of this chapter is to protect the public health by minimizing:ġ. The potential for public exposure to sewage from on-site sewage systems andĢ. Adverse effects to public health that discharges from on-site sewage systems may have on ground and surface waters.ī. This chapter regulates the location, design, installation, operation, maintenance, and monitoring of on-site sewage systems to:ġ. Achieve long-term sewage treatment and effluent dispersal andĢ. Limit the discharge of contaminants to waters of the state.Ĭ. This chapter provides for the issuance of permits, establishment of fees, licensing and bonding of installers, pumpers, and operation and maintenance specialists of sewage disposal systems and an appeals procedure.ĭ. This chapter is intended to coordinate with other applicable statutes and rules for the design of on-site sewage systems under Chapter 18.210 RCW and Chapters 196-33 and 246-272A WAC.Į. This chapter is intended to coordinate with the land use planning regulation of Whatcom County. 24.05.010 Purpose, objectives, and authority.Ģ4.05.050 Local management and regulation.Ģ4.05.070 Connection to public sewer system.Ģ4.05.210 Developments, subdivisions, and minimum land area requirements.Ģ4.05.270 Fees.