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Posted on: March 9, 2020

City and SAM Work Together to Complete Granada Force Main Replacement Project

As part of the Sewer Authority Mid-Coastside's (SAM's) efforts to safeguard public health and protect the marine environment, 1,500 feet of the 40-year-old Granada Force Main along Highway 1 in Half Moon Bay is currently being replaced...


HMBCity_fullcolor_stacked_final (5)sam-sewerCity and SAM Work Together to Complete Granada Force Main Replacement Project

As part of the Sewer Authority Mid-Coastside’s (SAM’s) efforts to safeguard public health and protect the marine environment, 1,500 feet of the 40-year-old Granada Force Main along Highway 1 in Half Moon Bay is currently being replaced by a private contractor (Pacific Underground Construction). This segment of the pipeline is being installed via horizontal directional drilling which is intended to minimize surface impacts associated with traditional open trench installation.

This pipeline segment is located near riparian habitat. As part of the City’s review, habitat features including riparian areas were clearly defined, and project work limits were established to fully avoid these sensitive resources. Given the nature of the project site, the choice by SAM to utilize directional boring was appropriate and intended to limit impacts. Work on the project began February 24, 2020.

On February 26, 2020, the City identified that the contractor had performed work outside the defined project area. In consultation with SAM, the City reached the conclusion to issue a “Stop Work Order” to bring the contractor’s work into conformance with environmental regulations. SAM hired a compliance biologist to advise and monitor the project going forward. The contractor and SAM are currently working to address the issues, and it is the City’s desire to limit the construction delay on this important segment of the Intertie Pipeline System. Additionally, SAM is responsibly installing erosion control measures under the watch of the onsite compliance biologist as important preparation for upcoming forecasted rain systems.

We are committed to seeing this portion of the Intertie Pipeline System completed under direction of the compliance biologist in an environmentally-sound way. We value our partnership with SAM and SAM staff and appreciate their commitment to the environment,” said Adam Eisen, Mayor for the City of Half Moon Bay.

The SAM Board of Directors take these issues seriously and are putting all resources of SAM toward ensuring that the project will be completed without any further disturbances to the environmental areas surrounding the project site,” said Kathryn Slater-Carter, Chair of the Sewer Authority Mid-Coastside.

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The Sewer Authority Mid-Coastside is an agency formed under a Joint Powers Authority between the City of Half Moon Bay, El Granada Community Services District, and Montara Water and Sanitary District. The agency provides wastewater treatment services and collection maintenance services for a population of approximately 27,000 on the Coastside.

Located 28 miles south of San Francisco, the City of Half Moon Bay is a community of about 12,500 people, situated on the peninsula between forested hills and some of the most beautiful coastlines that California has to offer. Its historic downtown is home to numerous shops, art galleries, restaurants, bed and breakfasts, and other businesses, and its celebrated beaches and parks are wonders of nature, accessible to pedestrians, bicyclists, and equestrians. With its many activities and events, beautiful natural scenery, old-town charm, and abundance of retail and commercial services, Half Moon Bay is a regional destination. The City’s website is www.hmbcity.com.

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