Supplemental Information for Napa Sanitation District

Infeasibility Study

As noted in the original Infeasibility Study, the NSD Pollution Prevention Program includes a commercial business element, a school outreach element, a public outreach element, and annual reporting and effectiveness measurement. The following activities are planned between 2002 and 2005:

2002/2003

  • Implement commercial business program for automotive businesses and restaurants
  • Conduct Vintage High P2 Audit project
  • Update treatment facility tours

2003/2004

  • Implement commercial business program for dental offices
  • Work with Environmental Education Coalition of Napa County to develop Aquatic Outreach to Educators
  • Obtain enviroscape diorama for use with 3rd and 4th grade classrooms

2004/2005

  • Implement commercial business program for dry cleaners
  • Conduct integrated pest management education programs as necessary
  • Organize an Earth Day or Pollution Prevention Week poster contest for school kids
  • Continue programs developed in 2002-2004

How these activities specifically address copper and mercury are discussed below.

Source identification tasks. Source identification is not specifically addressed above. However, Napa will be updating its industrial user survey in 2002/2003. As part of this effort, Napa will update its records regarding businesses that are typically considered sources of mercury and copper including medical facilities, dental offices, vehicle service facilities, and printers. Inspections and assessments of these facilities with respect to copper and mercury discharges will be conducted according to the schedule listed above. Some wastewater sampling will be conducted as part of the source identification effort. The P2 Audit to be conducted at the high school will also be used to assess schools as a potential source of copper and mercury. In addition, the District will continue to work with the City of Napa to assess the copper contribution from the water supply and corrosion.

Source reduction tasks. The source reduction tasks targeting copper and mercury sources described above include the vehicle service inspection program, the dental office inspection program, and the Vintage High School P2 Audit. In all three programs, BMP checklists will be used to determine if copper and mercury discharges are being managed properly. Businesses and the High School will be provided with a list of practices to implement to reduce mercury and copper discharges. Follow-up inspections will be conducted to determine rates of BMP implementation. BMP implementation rates will be used to measure the effectiveness of these efforts.

Public Outreach. Public outreach activities planned by the District include the Vintage High School Project, plant tours, articles in Pipeline (NSD’s newsletter), participation in Environmental Education Coalition of Napa County and participation in local events including Coastal Cleanup Day, Napa Valley College Job Fair and Earth Day celebrations. The goal of these activities is to increase the public’s awareness of local water pollution issues and NSD’s role in protecting local waterways. Effectiveness of these programs in increasing awareness will be assessed using a short quiz to be administered after the plant tours and a short awareness survey to be included in the Pipeline.

Effectiveness Measurement. As noted for the source reduction tasks and the public outreach tasks, effectiveness measurement will be incorporated into these tasks. BMP implementation rates will be assessed using inspections conducted early in the program and as follow-up to assess the effectiveness of the vehicle service and dental programs mentioned above. BMP implementation rates may also be one measure that can be used for the High School project. Effectiveness of the public outreach programs in increasing awareness will be assessed using a short quiz to be administered after the plant tours and a short awareness survey to be included in the Pipeline.

Time Schedule. The schedule to initiate the above tasks is outlined below.

Task / Begin by:
Source Identification
Update IU Survey / November 2002
Assess corrosion contribution / January 2004
Source Reduction
Conduct initial vehicle service facility inspections / In progress
Conduct initial dental office inspections and outreach / September 2003
Conduct additional source reduction tasks identified by source identification as needed (e.g., medical facilities, corrosion sources) / June 2004
Public Outreach
Update treatment facility tours / In progress
Support P2 Audit at Vintage High School / September 2002
Participate in and promote public events including Coastal Cleanup, Napa Valley College Job Fair, Earth Day events / Ongoing and conducted annually
Evaluate effectiveness
Evaluate tours using quizzes / In progress
Conduct follow-up vehicle service facility inspections to assess compliance and evaluate effectiveness / January 2003
Conduct follow-up inspections at dental offices to assess BMP implementation and evaluate effectiveness / March 2003
Evaluate ongoing public outreach activities using survey in Pipeline / April 2003