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Fort Walton Beach Council agenda — 05-27-11 regular — reading text
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8. 3
City Council of Fort Walton Beach
ENGINEERING & UTILITY SERVICES
MEMORANDUM
To: Robert T. Meatus, City Manager
From:
Michael Beedie, Engineering & Utility Services Director
Date: May 24, 2011
ITB 11 - 008 Chemical Root Control
1. BACKGROUND:
1. 1. Prior to FY 2010 -I1, the City Council had appropriated $ 15, 000 annually for chemical
root control to eliminate root intrusion into sanitary sewer gravity mains. The staff
would piggyback on other root control contracts within the State of Florida.
1. 2. With the expiration of chemical root control contracts, staff elected to issue an
Invitation to Bid to procure an annual chemical root control contract that would allow
other agencies to piggyback on.
L3. Chemical root control is necessary as tree roots are one of the most frequent causes of
sewer main blockages that a utility experiences.
2. DISCUSSION:
2. 1. On January 25, 2011, the Purchasing Division issued Invitation to Bid ( ITB) No. 11-
008 for an annual contract to provide chemical root control. On March 17, 2011, two
2) vendors submitted bids.
2. 2. The two ( 2) vendors who submitted bid packages were as follows:
2. 2. 1. Municipal Sales, Inc.: Base Bid= $ 9, 670.00
2. 2. 2. Duke' s Root Control: Base Bid = $ 11, 080. 00
2. 3. The quantities used to evaluate the bid prices were estimates and will change each year
based on necessity and budget. The unit prices for each pipe size will be utilized in the
annual contract.
2. 4. Even though Municipal Sales, Inc. provided lower unit prices for the chemical root
control, their method of application and product did not fully meet the specifications for
the following reasons:
2. 4. 1. In Section E. 5 of the Technical Specifications, it states, " Hydraulic sewer
cleaning machines will reduce treatment effectiveness by damaging root
growths and inhibiting their uptake of chemical. Hydraulic sewer cleaning
machines shall not be used prior to, or during the treatment process ". Municipal
Sales, Inc. utilizes hydraulic sewer cleaning machines to apply the root control
chemical.
2. 4.2. Even though Staff allowed Municipal Sales, Inc. to submit their chemical, there
is uncertainty to the safety of their chemical because metam sodium is
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8. 3
a City Council of Fort Walton Beach
ENGINEERING & UTILITY SERVICES