Agenda 07/27/2010 Item #10EAgenda Item No. 10E
July 27, 2010
Page 1 of 4
EXECUTIVE SUMMARY
Recommendation to rescind the Administrative Stay of the requirement for Reduced Pressure
Backflow Preventers on fire service lines, and require retroactive implementation of the
requirement to June S, 2010.
OBJECTIVE: To protect the public's health, safety, and welfare.
CONSIDERATION: At the June 8, 2010, Board of County Commissioners meeting direction for an
administrative stay of the requirements for reduced pressure (RP) backflow preventers and line -size
water meters on fire service lines was implemented. Collier County Water -Sewer District (CCWSD)
staff was directed to have the requirements vetted through the Development Services Advisory
Committee (DSAC). CCWSD staff scheduled to have the requirements placed on the agenda of the
July 7, 2010, regularly scheduled DSAC meeting. CCWSD staff was advised on July 6, 2010, that the
meeting was rescheduled to July 21, 2010, since the required public notice was not appropriately
provided. CCWSD staff deems a lack of a CCWSD- approved backflow prevention device on fire
service lines constitutes a serious health risk and recommends the requirement be reinstated
retroactively to the date of the stay.
Ordinance 2004 -31, the Collier County Utilities Standards and Procedures Ordinance, incorporates the
Utilities Standards Manual into the Ordinance. The Utilities Standards Manual requires RP backflow
preventers on fire service lines.
The CCWSD cannot control what a private owner does behind their service connection. Due to the
possibility of cross- connections with unknown uses or other sources of potable and non - potable water,
the CCWSD has to consider fire service lines high hazard connections. A cross- connection is any
connection between the potable (drinking) water supply and any other source of water that has the
potential to contaminate the drinking water supply through a process known as backflow. Backflow is
a reversal of the flow of water through a cross- connection, pulling undesirable water into the drinking
water supply system.
There are two types of backflow, backpressure and backsiphonage. Backpressure is when the private
property pressure is greater than the public main pressure of the drinking water supply system. The
causes of backpressure can be an increase in the private property pressure caused by pumps or a
reduction of supply pressure caused by water main flushing, main breaks, or fire fighting.
Backsiphonage is when a negative pressure, or vacuum, occurs. The causes can be a stoppage of water
supply due to nearby fire fighting or a large break in a water main.
CCWSD staff has discovered non - potable water irrigation systems directly connected to dedicated fire
lines behind the service connection on private property. To protect the public's health, safety, and
welfare, a RP backflow preventer is needed. The RP backflow preventer protects the potable water
system from the reversal of flow of high hazards on the customer's side of the service connection. The
RP is the most effective backflow preventer on a pressurized line.
LEGAL CONSIDERATIONS: This item has been reviewed and approved by the County Attorney's
Office and is legally sufficient — JBW_
FISCAL IMPACT: None.
Executive Summary
Fire Service Lines
Page 2
Agenda Item No. 10E
July 27. 2010
Page 2 of 4
GROWTH MANAGEMENT IMPACT: This requirement is consistent with and furthers the goals,
objectives, and policies of the Potable Water Sub - Element of the Collier County Growth Management
Plan.
RECOMMENDATION: That the Board of County Commissioners, as the Ex- officio Governing
Board of the Collier County Water -Sewer District,
• rescind the Administrative Stay of the requirement for Reduced Pressure Backflow Preventers
on Fire Service Lines; and,
• require retroactive implementation of the requirement to June 8, 2010.
PREPARED BY: Nathan Beals, Associate Project Manager, Public Utilities Planning and Project
Management Department.
Agenda Item No. 10E
July 27. 2010
Page 3 of 4
COLLIER COUNTY
BOARD OF COUNTY COMMISSIONERS
Item Number: 10E
Item Summary: Recommendation to rescind the Administrative Stay of the requirement for Reduced
Pressure Backflow Preventers on fire service lines, and require retroactive implementation of
the requirement to June 8, 2010. (Jim DeLony. Public Utilities Administrator)
Meeting Date: 7/27/2010 9 -. .00:00 AM
Prepared By
Nathan Beals
Project Manager, Associate
Date
Public Utilities Division
Public Utilities Engineering
7/8!2010 3:54:52 PM
Approved By
Nathan Beals
Project Manager, Associate
Date
Public Utilities Division
Public Utilities Engineering
717/2010 2:25 PM
Approved By
Phil E. Gramatges, P.E.
Project Manager, Principal
Date
Public Utilities Division
Public Utilities Engineering
7/8;2010 4:00 PM
Approved By
Pamela Libby
Manager- Operations- Waterl"I
Date
Public Utilities Division
Water
718/2010 4:06 PM
Approved By
Joseph Belione
Manager - Utility Billing & Cost Sew.
Date
Public Utilities Division
Utilities Finance Operations
7/812010 4:10 PM
Approved By
Mark Sunyak
Project Manager, Principal
Date
Public Utilities Division
Public UuHttes Engineering
71912210 5:07 AM
Approved By
Paul Manauseh
Director - Water
Date
Public Utilities Division
lAater
7!912J10 8:13 AM
Approved By
Margie Fiapke
Operations Analyst
Date
Public Utilities Division
Public Utilities Division
71812-2010 8:21 AM
Approved By
Jenni`er White
Assista% County Attorney
Date
County Atto: ney
County Attorney
7!9:2010 8:42 AM
Approved By
Agenda Item No. 1OE
July 27, 2010
Page 4 of 4
Jeff Klatzkow
County Attorney
Date
7/9120.D 1:47 PM
Approved By
Thomas Writes
Director - --perations Support - PUD
Dale
Public Utilities Division
Utilities Finance Operations
7/10,'2010 12:21 PM
Approved By
James W. DeLony
Public Utilities Division Administrator
Date
Public Utilities Division
Public Utilities Division
7/13/2010 8:07 AM
Approved By
OMB Coordinator
Date
County Manager's Office
Office of Management & Buciget
7113 12010 8:40 AM
Approved By
Randy Greenwald
Management /Budget Analyst
Date
Office of Management &
Budget
Office of Management & Budget
7;13.'2010 10:22 AM
Approved By
Leo E. Ochs, Jr.
County Manager
Data
County Managers Office
County Manaoer;, Office
7/14/2010 4:43 PM