Washington State · Kitsap County

Kitsap County Septic Guide: Permits, Inspections & Rules

Kitsap Public Health District has permitted septic systems since long before Washington adopted its own statewide rule, and it built one of the earliest local operation-and-maintenance ordinances in the state. The district still sets the pace today. Its current rules already require a septic inspection at every property sale, two years ahead of the statewide requirement. Here's how permitting, fees, inspections, and the sale rule actually work in Kitsap County.

This page is general information about Kitsap County's septic rules. It's not legal advice. Confirm current requirements for your specific property with Kitsap Public Health District or a licensed professional before you rely on anything here.

Who Permits Septic Systems in Kitsap County

Kitsap Public Health District, the legal successor to the former Kitsap County Health District, permits septic systems through its Environmental Health Division. The program itself is branded the Drinking Water & Onsite Sewage program, usually shortened to DWOS.

The program's public home page is where a homeowner should start for forms, fees, and general guidance; a separate page inside it covers construction, repair, and maintenance specifically. (kitsappublichealth.org — DWOS program home, kitsappublichealth.org — Septic construction, repair & maintenance, accessed July 22, 2026) Kitsap's own stormwater partnership program, Clean Water Kitsap, confirms the same division as the permitting authority on its own septic page. (cleanwaterkitsap.org — Septic systems, accessed July 22, 2026)

The governing regulation is Kitsap Public Health Board Ordinance 2025-01, the "Onsite Sewage System and General Sewage Sanitation Regulations," effective March 17, 2025. It replaced the district's prior rule, Ordinance 2008A-01. The full text runs as a single PDF. (kitsappublichealth.org — Ordinance 2025-01, direct PDF, accessed July 22, 2026)

One naming inconsistency, same document. The district's own "Selling Property" webpage cites this rule as "Ordinance 2025A-01, Section 13.D." The ordinance document itself is titled "Ordinance 2025-01." Both citations point to the identical regulation; the district appears to use the two names inconsistently across its own pages. Search the district's site or ordinance archive under both names; a search limited to one may miss pages that use the other.

Like every Washington county, Kitsap's local rule has to sit on top of the statewide floor, WAC 246-272A, and can only go further than it, never below it. Kitsap is also one of twelve Puget Sound-adjacent counties required to maintain its own written local on-site sewage management plan. For how that state-and-county structure works everywhere in Washington, see our Washington Septic Regulations guide.

What Permits Cost in Kitsap County (Effective January 1, 2026)

The current fee schedule took effect January 1, 2026, under Kitsap Public Health Board Resolution 2025-06. It covers Onsite Sewage (OSS) permitting alongside the district's other environmental health programs. (kitsappublichealth.org — Fee schedules, Resolution 2025-06 fee schedule (PDF), accessed July 22, 2026)

New construction & repair fees, 2026
Permit type2026 fee
New SFR OSS Building Site Application, private water$1,085
New SFR OSS Building Site Application, public water$820
Repair/Replacement Building Site Application (no expansion)$550
Sewage System Permit — new/replacement/repair install$600
Tank replacement, component repair, or remediation$225
Building Clearance — residential$335
Building Clearance — commercial$550
OSS Waiver Request$145
Standard hourly rate (uncovered work)$150
Certification, monitoring & conveyance fees, 2026
Item2026 fee
Property Conveyance Inspection & Evaluation Report (point-of-sale)$295
Installer/Pumper/M&M Specialist — initial certification$440
M&M Specialist/Installer/Pumper — annual renewal, first truck$225
Homeowner Monitoring & Maintenance — annual renewal$145
M&M annual contract fee, per dispersal component$20

These are the line items most homeowners actually hit, not the full schedule. For what a contractor charges to install or repair the system itself, on top of these county fees, see our Septic Installation Cost in Washington guide.

The 2026 revision left septic fees essentially unchanged from the prior 2024 schedule, adopted under Resolution 2023-06. The one difference: the M&M annual contract fee dropped from $30 to $20 per dispersal component. The 2026 rate revision itself was mostly aimed at food-service and pool fees; OSS line items carried over largely as-is. (kitsappublichealth.org — 2024 fee schedule (PDF), kitsappublichealth.org — 2026 fee announcement, accessed July 22, 2026)

Operation & Maintenance: How Often Kitsap County Requires Inspection

Ordinance 2025-01 splits the inspection duty two ways: what the owner has to do, and when a certified Monitoring & Maintenance (M&M) provider has to be under contract instead.

Minimum evaluation frequency, Ordinance 2025-01 §13.C.16 & §13.G
System typeMinimum frequency
Standard/gravity systems, including pump-to-gravityAt least once every 3 years, reported to the Health Officer
Alternative systems (pressure distribution, ATUs, sand filters, etc.)At least once a year, minimum

(Ordinance 2025-01 §13; district's Onsite Sewage Systems Use, Monitoring, and Maintenance Field Manual, accessed July 22, 2026) Kitsap's ordinance groups pump-to-gravity with standard gravity on a 3-year cycle. The statewide floor, WAC 246-272A-0270(1)(e), sets a 3-year interval only for a system that's solely a tank and gravity drainfield — anything with a pump falls under the annual interval instead. Confirm which cycle applies to your system with the district.

A paid, valid M&M service contract with a district-certified provider is mandatory, not optional self-inspection, if the system is any of the following: an alternative or community system; connected to a use that generates atypical or high-strength wastewater, including food service, medical or dental offices, salons, auto repair, or manufacturing; or specifically directed by the Health Officer. Standard-gravity single-family homeowners get two other paths instead: self-certify through the district's Homeowner Monitoring & Maintenance track, which requires 8 hours of training plus a test, or hire a certified pumper for the 3-year check. (kitsappublichealth.org — Homeowner certification, accessed July 22, 2026)

Holding tank systems run on a stricter track than either of those. Owners can't self-service a holding tank at all. It requires an annual service contract with a certified pumper plus an annual inspection report, every year, for as long as the tank is in use.

The district's own flagged compliance gap. Standard-system evaluation reports get pulled into the district's records system when requested, at application review or at a property sale, rather than tracked proactively parcel by parcel. The district's 2008 planning document identified getting standard-system owners to actually report their 3-year inspections as the program's biggest ongoing compliance gap. Nothing in the current ordinance suggests that tracking approach has changed.

Selling or Buying? Kitsap Already Runs Its Own Sale Inspection

Washington's statewide septic inspection-at-sale requirement starts February 1, 2027. Kitsap County didn't wait for it. The district already runs a mandatory Transfer-of-Property Inspection Program under Ordinance 2025-01 §13.D, independent of the statewide rule and years ahead of it. (kitsappublichealth.org — Selling property, accessed July 22, 2026)

Timing: the owner conveying a septic-served property has to apply to the Health Officer at least 30 days before the transfer for a Property Conveyance Inspection (PCI) and written evaluation of the system's functionality, maintenance status, and regulatory compliance.

What the inspection needs, by system type: a standard system needs a tank inspection completed within the past 3 years by a certified pumper or specialist. An alternative system needs the M&M provider's inspection already on file. A system that's unknown or was never permitted needs an as-built record drawing plus a fresh tank inspection.

District turnaround: the Health Officer has to respond within 7 business days, covering the records search, field inspection, and written report.

What the seller hands the buyer: the written PCI evaluation, whatever permit and maintenance records exist (or a record drawing if none do), and a completed RCW 64.06 seller disclosure statement, the same statewide disclosure form required for any Washington home sale.

Fee and validity: the PCI costs $295, non-refundable. A completed report stays valid for 3 years on a standard system, or 1 year on an alternative system, regardless of how many times the property changes hands inside that window. A repeat sale that falls inside a still-valid report's window may not need a fresh inspection at all.

Exemption: a structure that's never been occupied, with an approved installation permit and a valid certificate of occupancy, is exempt from the PCI requirement.

2025 outcomes, straight from the district. Kitsap Public Health District reported 1,743 PCIs completed in 2025. 450 of them, 26 percent, turned up significant deficiencies. The top causes cited: encroachment on the primary or reserve drainfield, inaccessible alternative-system components, use beyond the permitted bedroom or capacity rating, and unpermitted plumbing additions. Roughly one in four sellers who go through this process finds out their system has a real problem, before it becomes the buyer's problem.

A related, separate requirement runs alongside the PCI on the same district webpage: a Water Status Report, in place since March 4, 2019, for private wells and Group B water systems at conveyance. It carries its own fee and its own report, distinct from the septic conveyance inspection, though the district often bundles the two into the same sale-prep conversation.

This local rule is separate from, and predates, the statewide inspection-at-sale requirement that starts February 1, 2027 under the state's revised on-site sewage rule. Kitsap sellers are effectively already living under a version of what the rest of Washington gets in 2027. For how the statewide rule works once it's active everywhere, see our Selling a House With a Septic System in Washington guide.

Finding Your Septic Records

Kitsap Public Health District runs one records portal, referenced under several different labels depending on which page links to it: "Application Status Lookup," "Drinking Water Records Search," "Septic Records Search," and "GIS Mapping System" all point to the same tool.

The portal lives at secure.kitsappublichealth.org/irecordsearch/. The DWOS home page links to it as the way to "search for property records, application status or septic records." The Selling Property page links to the same tool, calling it the GIS Mapping System, and tells homeowners to use it to look up their approved bedroom count and drainfield capacity before applying for a conveyance inspection. (secure.kitsappublichealth.org — Record search portal, accessed July 22, 2026)

The portal URL is live and the district links to it consistently across its site. How the address and parcel search behave once you're inside it isn't documented on the district's pages — try it against your own property before you count on what it returns.

Buying a home with a septic system anywhere in Washington involves more than pulling one county's file. See our Buying a Home With a Septic System in Washington guide for the full records and disclosure checklist.

Kitsap County Quirks Worth Knowing

Marine Recovery Areas: Liberty Bay and Burley Lagoon

Under RCW 70.118A, Kitsap has designated Liberty Bay and the Kitsap County portion of Burley Lagoon as Marine Recovery Areas, meaning septic systems there are judged a significant contributor to marine water-quality impairment, which triggers enhanced OSS survey and oversight obligations. Hood Canal, Dyes Inlet, and Sinclair Inlet were evaluated for the same designation but weren't added; the district's own data showed septic systems weren't a significant factor in those water bodies, a finding that put the district at odds with Washington Ecology over some of its 303(d) impaired-waters listings.

The source for these designations is the Kitsap County Local Management Plan for Onsite Sewage, adopted by the county Board of Health on June 3, 2008. Ordinance 2025-01 §7 still incorporates this plan by reference today. (kitsappublichealth.org — Local Management Plan, accessed July 22, 2026)

A plan the district keeps citing but may not have updated. The DWOS site still links to the same 91-page 2008 plan as-is. Nothing published indicates it has been substantively revised since, even though the district's much newer 2025 ordinance keeps incorporating it by reference. Treat the Marine Recovery Area boundaries, and the data behind them, as last formally revised in 2008, and confirm current status directly with the district if a property's proximity to Liberty Bay or Burley Lagoon matters to your decision.

Lot size runs on soil type, not just zoning

Ordinance 2025-01 §15, Table 9 sets minimum lot size for a septic-served single-family home by soil type and water source. In the best soils on public water, that minimum drops to 13,000 square feet, about 0.3 acre. With a private well, it climbs to 1 to 2 acres. If the OSS is limited to a plain gravity septic tank and gravity drainfield, with no pressure distribution, the minimum rises again, to 2.5 acres. Two lots zoned identically can carry very different septic-eligible minimums once the soil report comes back.

Setbacks get strict near water

A drainfield edge has to sit at least 100 feet from any private well. Near a public drinking-water surface-water source, that setback doubles to 200 feet.

A 3,500 gallon-a-day ceiling for local jurisdiction

Kitsap's local permitting authority caps out at systems designed for 3,500 gallons a day. Anything larger falls to the Washington Department of Health as a Large Onsite Sewage System, outside the district's own jurisdiction.

One shellfish protection district

The 2008 Local Management Plan names Burley Lagoon as Kitsap's one formally designated shellfish protection district. Beyond that single formal designation, the "vast majority" of Kitsap's marine shoreline supports recreational or commercial shellfish harvest, which makes it indirectly sensitive to septic failures well beyond the two Marine Recovery Areas.

No countywide septic moratorium

No published source shows an active building or development moratorium tied to septic capacity anywhere in Kitsap County as of this writing. Absence of evidence isn't the same as confirmation; ask the district directly if a specific parcel's development status matters to your timeline.

A district with a long head start

Kitsap has required septic permitting since 1961, fifteen years before Washington adopted its own statewide rule. Its 1995 local operation-and-maintenance ordinance was the first of its kind in the state. (kitsappublichealth.org — Local Management Plan, accessed July 22, 2026) The current 2025 ordinance, and the sale-inspection program built into it, extends a pattern of Kitsap regulating septic systems earlier and more closely than the state floor requires.

What the Fees Above Don't Cover: Pumping and Installation Cost

Everything in the fee tables above is what the district charges to review, permit, and inspect a system. It doesn't include what a contractor charges to actually pump, repair, or install one. For those numbers, statewide, see our Septic Pumping Cost in Washington and Septic Installation Cost in Washington guides, then add the Kitsap County line item that matches your project from the tables above.

Two different septic counts, neither confirmed current. Clean Water Kitsap, the county's stormwater partnership site, states roughly 56,000 septic systems countywide; its page footer reads a 2014 copyright, so it's unclear how current that figure is kept. (cleanwaterkitsap.org — Septic systems, accessed July 22, 2026) The district's own 2008 Local Management Plan put the number closer to 66,000, built from Assessor cross-referenced records: roughly 49,675 systems directly in the district's permit database at the time, plus a margin for unpermitted or unknown systems, against over 62,000 property records in its imaging database. The two sources are twelve-plus years apart and there's no single current figure that reconciles them. Either way, Kitsap's septic inventory runs in the tens of thousands, which is part of why the district runs its sale-inspection program as tightly as it does.

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Primary Sources

All sources accessed July 22, 2026. This page is general information about Kitsap County's septic permitting and inspection rules. It is not legal advice, and both fees and rules change over time. Confirm current requirements for your specific property with Kitsap Public Health District or a licensed professional.

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