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February 2024
Traffic control and lane shifts along King County pipeline planned for February 19.
Crews will collect groundwater samples to help inform project design.
King County Wastewater Treatment Division (WTD) is in the early stages of the design phase for the Black Diamond Sewer Upgrade Project. Starting as early as February 19, field crews will collect groundwater samples from survey wells installed last year. These samples will help inform design.
To collect samples, crews will access groundwater from the previously surveyed locations and use equipment to download data onto a computer. Crews can complete this work in as little as one day and will spend approximately 30 minutes at each site. The work may take longer depending on site conditions. This work may reoccur quarterly.
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 Groundwater sampling will take place along the existing sewer pipeline (show in green) that runs north to south between the cities of Covington and Black Diamond.
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What to expect:
- Crews will begin collecting samples as early as 10:30 a.m. on February 19.
- Sampling will take approximately 30 minutes at each location to complete.
- Crews will work in or next to traffic lanes (see map above).
- Crews will maintain emergency vehicle access.
- Flaggers will direct cars, people walking, and bikes around the work area.
- No detours are needed, though traffic lanes may be shifted for safety.
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About the project:
Black Diamond is one of the fastest-growing communities in the Puget Sound region. In 1992, King County built a regional sewer line to serve the area’s much smaller population at the time. Today, we need to upgrade the existing sewer line because it’s reaching capacity. This project will explore options to increase capacity for 6 miles of regional sewer pipe. This project will ensure reliable wastewater service to Black Diamond’s homes and businesses for decades to come.
Translation and interpretation services are available to you at no cost. If you need them, please contact Annie Plumley at aplumley@kingcounty.gov, (206) 263-3203.
Sobre el proyecto:
Black Diamond es una de las comunidades que más rápido crece en la región de Puget Sound. En 1992, el condado de King construyó un sistema de alcantarillado para brindar servicio a la población del área, la cual en ese momento era mucho más pequeña. En la actualidad, necesitamos renovar el sistema actual, que está por alcanzar su capacidad máxima. En el proyecto se evaluarán opciones para extender 6 millas las tuberías regionales. Este proyecto garantizará décadas de servicio fiable de alcantarillado para los hogares y los negocios de Black Diamond.
Los servicios de interpretación y traducción están disponibles para usted sin costo alguno. Si los necesita, comuníquese con Annie Plumley, aplumley@kingcounty.gov, (206) 263-3203.
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Talk to us!
For more information or to schedule a meeting, please contact:
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