The bill creates new law by adding identical new sections to multiple RCW chapters (35.21, 35A.21, 36.01, 57.02, and 54.04) that prohibit specified local entities (cities and towns, code cities, counties, water‑sewer districts, and public utility districts) from banning the installation of sewage grinder pumps for new single‑family residences that meet six conditions: located below the grade of a public sewer line; connected to a public or private low‑pressure sewer system; located where gravity drainage or other wastewater alternatives are not possible; required to move wastewater vertically; equipped with a check valve or backflow preventer; and consistent with the utility provider’s sewer system plan. This is a procedural change restricting local regulatory authority over such installations. The bill defines “sewage grinder pump” and “low‑pressure sewer system.” It also establishes ownership and maintenance rules: a sewage grinder pump installed on private property is owned by the property owner, who is responsible for maintenance and repairs unless the local entity, at its sole discretion, accepts ownership and maintenance responsibility. If a property owner fails to complete necessary maintenance or repairs, the sewer provider may perform the repairs and invoice the owner for the costs. Affected entities and references are identified in the bill text. The provided text does not include an effective date, does not define “sewer provider,” “utility provider’s sewer system plan,” or “new single‑family residences,” and does not set out enforcement mechanisms, penalties, or an appeals process.

If enacted, cities, counties, code cities, water-sewer districts, and public utility districts would no longer be allowed to ban the installation of sewage grinder pumps for new single-family houses that meet six technical conditions (e.g., below the public sewer line, require vertical lift, have a check valve, and fit the utility’s sewer plan). Property owners who install these pumps on their land would own and be responsible for maintaining and repairing them, though a local utility may choose to take ownership and maintenance instead; if owners neglect repairs, the sewer provider can fix the pump and bill the owner. Homeowners and builders in sites where gravity flow isn’t possible would gain the practical option to use grinder pumps, but they would also likely take on the extra upfront, maintenance, and repair costs and some ongoing risk of being billed if they don’t keep the pump working. Local governments and utility districts would lose the ability to prohibit these installations but keep a planning role because installations must be consistent with the utility’s sewer system plan; the bill text does not specify an effective date, detailed definitions for “new single-family residence,” or enforcement and appeals procedures, so those implementation details remain unclear.