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Septic Program
Updates to Lewis County Code 8.40, On-Site Sewage Systems LCC 8.40, 2025On August 26, 2025, the Lewis County Board of County Commissioners approved an updated Lewis County Code 8.40, On-Site Sewage Systems. Please see the attached document for the updated code. While the new code has not been published as of yet, it is effective as of August 26, 2025. To request a septic system construction final inspection, please call the Septic Inspection line at (360) 740-1330. Applications & Fees Test Pit Guidelines Gravity Construction Standards List of Certified Professionals (Designers, Installers, Pumpers) Certified Professional Resources FAQ Onsite Septic Homeowners …
Environmental Health - Jan. 30, 2018, 3:13 p.m.
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County Manager
Ryan BarrettCounty ManagerRyan Barrett has served as County Manager for Lewis County, Washington, since August 2023. Selected by the Board of County Commissioners after a nationwide search, Barrett brings nearly two decades of public sector experience and a strong connection to the local community. His background includes leadership roles in law enforcement, regional corrections and municipal government, giving him a well-rounded perspective on the challenges and opportunities facing the county.As County Manager, Barrett is focused on building a thriving, sustainable and inclusive community. His priorities include strengthening the local economy, improving infrastructure and enhancing the quality of life for residents. …
Commissioners - Nov. 30, 2022, 2:02 p.m.
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Board Decisions
2024 Board Orders for taxes payable in 20252023 Board Orders for taxes payable in 20242022 Board Orders for taxes payable in 20232021 Board Orders for taxes payable in 20222020 Board Orders for taxes payable in 20212019 Board Orders for taxes payable in 20202018 Board Orders for taxes payable in 20192017 Board Orders for taxes payable in 20182016 Board Orders for taxes payable in 2017
Commissioners - Nov. 3, 2016, 3:23 p.m.
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Purple Loosestrife
Lythrum salicaria Purple Loosestrife – Erect squarish stems, up to 8 feet tall, Leaves: 1 ½ to 4 inches long, lance-shaped and lack petioles, usually opposite and rotated 90 degrees from the previous node or whorled in sets of 3.Flowers: spikes of magenta flowers 4 – 16 inches long, flowers from July to October.Habitat: Found in wetlands and streams in the Centralia/Chehalis area as well as Stearns Creek and Mineral Lake in Lewis County.Weed Classification: B designateWhy Is It a Noxious Weed?Purple loosestrife is a vigorous competitor and can crowd out other vegetation including native species. It can quickly dominate …
Weed Control - Sept. 12, 2022, 11:28 a.m.
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Survey
Survey Results:A community wide survey ran from November 2, 2021, to December 10, 2021, as an opportunity for county residents to provide direct input to the local government decision-making process, specifically on spending priorities for the $15 million that has been allocated to Lewis County as a part of the American Rescue Plan Act (ARPA) distribution of funds to local county governments.Survey results presented from POLCO to Lewis County Staff on 3-9-2022: Lewis County ARPA Baseline Survey resultsSurvey result highlights presented to Board of County Commissioners on 1-19-2022: 1.19.2022 Polco Survey Results HighlightsFull resident results: Residents ResultsFull business results: Business …
Nov. 1, 2021, 3:36 p.m.
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Common fennel
Foeniculum vulgare Common Fennel - A large perennial herb that grows to be about 6' tall, smells strongly of licorice, and spreads via seeds and pieces of the root crown.Leaves: Dark green or bronze feather-like, deeply lobed and somewhat spindly, the leaves are completely hairless and attachment points (petioles) are fleshy with a wide base.Flowers: In bloom from May to September, the small yellow flowers form an umbrella shaped cluster (umbel) and resemble those of poison hemlock and wild chervil.Habitat: Can establish in just about any habitat from roadsides, to prairies, to coastal bluffs, to wetland areas.Weed Classification: B DesignateWhy …
Weed Control - Sept. 29, 2022, 9:46 a.m.
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Flowering Rush
Butomus umbellatus Flowering Rush - An emergent invasive with a very limited distribution in Washington state that can sometimes stay submerged. Can grow up to 5 feet tall.Leaves: - Thin upward growing leaves that often twist when above the surface of the water and reach 3+ feet in length (when plant is emerged and much longer when it is submerged). Leaves have a triangular cross section.Flowers: - Blooms June - September with umbrella shaped clusters of 20-50 flowers that have 3 sepals and three white to deep purple petals.Habitat: - Can appear in a variety of habitats and is often …
Weed Control - Sept. 12, 2022, 1:31 p.m.
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About the Treasurer
Meet Arny Davis - Lewis County Treasurer Arny Davis was elected as Lewis County Treasurer and assumed office in January of 2015. He is the 28th treasurer to serve since 1850. Arny served as Chief Deputy Treasurer for two and a half years prior to becoming Lewis County Treasurer. He chairs the County Finance Committee and oversees a staff of eight at the Treasurer’s office. The County Treasurer holds a key position of public trust in the financial affairs of local government.Arny Davis brings over 30 years of business management, finance, accounting, marketing and strategic planning experience to the Treasurer’s …
Treasurer - April 27, 2015, 4:40 p.m.
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Spurge Laurel
Daphne laureola Spurge Laurel - An evergreen shrub that gets to be around 1.5 to 5 feet tall. Plants can either be upright or arched at the base before spreading upwards.Leaves: Leaves alternate and are more prominent towards the top of the shoots. They are dark green and shiny on the top with lighter undersides. Leaves are oval in shape and about 0.8-5.1 inches long.Flowers: Flowers bloom from March through June. Small, green and yellow flowers grow at the base of the leaves and are fragrant.Habitat: Commonly found amongst the forest understory. Spurge Laurel prefers partial sun.Weed Classification: B DesignateWhy …
Weed Control - Sept. 29, 2022, 9:49 a.m.
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Garlic Mustard
Alliaria petiolata Garlic Mustard - A biennial to short-lived perennial plant. Plant smells of garlic and can grow to around 3 feet in height.Leaves: Basal leaves have rounded tips and are kidney shaped. Upper leaves are alternate and triangular in shape. Both types of leaves have leaf stems and are coarsely toothed. New leaves smell the most of garlic.Flowers: Flowers bloom from April-June. Flowers have 4 petals, 4 sepals, and 6 stamens. Petals are white and about twice as long as the sepals.Habitat: In Washington it grows in forested understory areas like urban parks, roadsides, trails, railroad tracks, streambanks, fields, …
Weed Control - Sept. 29, 2022, 10:57 a.m.