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Did You Know?

In 1848, Lake Cochituate in Natick was utilized as Boston’s second surface water supply to meet the needs of the city’s growing population.

Report a Sewer Sanitary Overflow (SSO)

Basement SSO

To report a sanitary sewer overflow (SSO) or sewer backup, call BWSC’s 24 Hour Emergency Service Line at 617-989-7000.

If you encounter a SSO in your home or business:

  • Avoid contact with sanitary flow
  • Report any SSO to BWSC
  • Use caution while cleaning following a backup or contact a cleaning contractor. See Cleanup Procedures after a Sewer Backup for more information.

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