Sewer System Management Plan (SSMP)

The City of Calistoga’s Sewer System Management Plan (SSMP) supports the City’s overall mission to provide a safe, high-quality, and well-managed community while protecting the environment and ensuring long-term financial stability.

The Public Works Department oversees both the sewer collection system and the wastewater treatment plant, with key goals focused on reliable and efficient service.

Key Goals:

• Maintain a safe, clean, and reliable wastewater system for residents
• Preserve the city’s quality of life and environmental character
• Operate and maintain sewer infrastructure efficiently and responsibly
• Ensure the system has enough capacity to handle peak flows
• Reduce and prevent sewer spills and service disruptions
• Quickly repair, replace, and expand sewer and recycled water infrastructure when needed
• Provide effective wastewater treatment that protects the Napa River and supports reuse for irrigation
• Deliver services in a cost-effective and environmentally responsible way