1. April 28, 2015 City Council Workshop

2. City Council Goal 1 Expansion  Objective: To enhance infrastructure in order to maintain quality neighborhoods and business district  Strategy: Projects targeted as highest priority for replacement shall be evaluated for potential upgrade or enhancement  Measurement: Provide City Council with a presentation of the existing PEP tank replacement program

3. City PEP System  PEP system designed by ITT in the early 1970’s as an alternative to the installation of a conventional gravity sewer system in certain areas of the City  12,825 active PEP tanks and the count is growing every week

5. PEP Tank Failures 2000 - 2014

6. Why do PEP Systems Fail?

7. PEP Tank Failures vs. Rainfall 2000 - 2014

8. New PEP Tank Installations 2000 - 2014 2003-2006 = 7,197 Multiple Sub-Contractor Installations 2004-2006

9. 0.50% 0.79% 0.58% 0.67% 0.36% Annualized Failure Rate182 Tanks Replaced from FY2013 – Q2 FY2015

10. Potential Causes of PEP Tank Failures  Record Setting Growth in Palm Coast from 2003 through 2006  Underground Utility Sub-Contractor PEP Tank Installations  Work Site Conditions and Environment  Insufficient Staff for Workload and Inspections of PEP Tank Installations

11. Solution and Future Plan of Action  Upgrade to Continuous H20 Load Rated PEP Tanks  Continue to Perform Installations and Replacements with City Staff, if Possible  Monitor Growth and Replacements to Ensure Adequate Staffing Level for both Installation and Inspections  Ensure Appropriate Budget to Maintain Program

12. Water and Wastewater Utility Capital Improvement Plan PEP Tank Installations *Based on 2014 Wastewater Management System Facilities Plan for Growth Inside City Limits with 20% Requiring PEP Tank Installation **Based on Replacement Trends over Last 8 Years Year New Tanks* Replacement Tanks** Current CIPForecasted 201511375$600,000$629,000 201611775$850,000$641,000 201712280$900,000$665,000 201816880$950,000$815,000 201925480$1,050,000$1,095,000 Total 2015-2019 774390$4,350,000$3,845,000

13. Questions