The city's department of Environmental Services will be working on nine major sewer projects in July.

The projects are:

• Halona Street Relief Sewer - Installation of a new sewer line and manholes along Olomea Street and along Kohou Street, from Olomea Street to North King Street.

• Peterson Lane and Pua Lane Sewer Rehabilitation - Installation of a new gravity sewer line on King Street, Peterson Lane, Dillingham Boulevard, and Pua Lane.

• Wana'ao Road/Keolu Drive Reconstruction Sewer - Installation of a gravity sewer line along Wana'ao Road between Palawiki and Papalani streets.

• St. Louis Heights Sewer Rehabilitation - Installation of cured-in-place pipes along roads and easements and sewer laterals and manhole rehabilitation in areas along Bertram and St. Louis Drive.

• Ilimalia Loop/Mokapu Boulevard Sewer Rehabilitation - Sewer manhole rehabilitation on Ilimalia Loop and along Mokapu Boulevard between Ililani Street and Kalaheo Avenue.

• Kapi'olani Boulevard Water and Sewer System Improvements – Installation of gravity lines along Kapi'olani Boulevard between Pi'ikoi Street and Kalakaua Avenue and a new force main along Kalakaua Avenue between the Ala Wai Bridge and Kapi'olani Boulevard.

• Kuli'ou'ou Sewer Rehabilitation – Manhole rehabilitation work at various locations.

• Waipahu Street/Plantation Village Sewer Reconstruction – Night work installation of gravity sewer line within Plantation Village.

• Kalihi/Nu'uanu Area Sewer Rehabilitation (All Phases) – Sewer rehabilitation work on Kuakini Street and Liliha Street.