3 Resolution Awarding the Supply of GAC Adsorption Systems for TCP Removal to Loprest Water Treatment Company.

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Meeting Date: October 18, 2016


AGENDA ITEM: Resolution Awarding the Supply of GAC Adsorption Systems for TCP Removal to Loprest Water Treatment Company.

MEETING DATE: October 18, 2016

PREPARED BY: Alfonso Manrique, Alternate City Engineer

REVIEWED BY: Odi Ortiz, Interim City Manager



That the City Council adopt Resolution No. 2016-_, a resolution awarding the supply of up to ten (10) GAC Adsorption Systems for TCP Removal to Loprest Water Treatment Company.


The City of Livingston’s water supply wells produce water that contains 1,2,3-Trichloropropane (TCP). TCP is a manmade chemical found at industrial or hazardous waste sites. It has been used as a cleaning and degreasing solvent and also is associated with pesticide products. TCP causes cancer in laboratory animals and it is reasonably anticipated to be a human carcinogen as well.

TCP is currently unregulated but new SWRCB regulations are expected to go into effect in Spring or Summer of 2017. The recommended MCL for TCP is expected to be at 5 parts per trillion (ppt). TCP concentrations in the groundwater produced by the City’s wells range from 20 ppt to 780 ppt. Therefore, if the recommended limit is adopted, all of the City’s wells will require treatment in the future.

TCP is usually removed from the groundwater using Granular Activated Carbon (GAC). GAC technology uses an absorptive media (GAC) to remove contaminants from the water. Well #8 was the first of the City’s wells to have a GAC Adsorption System to remove TCP. In anticipation of the upcoming regulations, staff recommends to begin the planning and design process for the rest of the treatment systems at the City’s wells. The first step consists of pre-selecting an equipment manufacturer to supply the GAC Adsorption Systems that will be needed.

The City solicited bids from equipment manufacturers to supply up to ten (10) GAC Adsorption Systems. Four (4) suppliers responded to the City’s solicitation: Calgon Carbon Corporation, Evoqua Water Technologies, Loprest Water Treatment Company, and Westech Engineering. The following table summarizes the bid amounts from each bidder.


Bid Amount

Calgon Carbon Corporation


Evoqua Water Technologies


Loprest Water Treatment Company


Westech Engineering


After the review of the bid packages, Staff finds that the lowest responsive bidder is Loprest Water Treatment Company. Loprest Water Treatment Company is also the supplier of the filtration equipment at Well #13 and Well #17. Staff recommends that the City awards the supply of the GAC Adsorption Systems to Loprest Water Treatment Company.


The award of the contract has an overall fiscal impact of $2,165.000.00. The fiscal impact will be spread over the next three fiscal years. The City will order the GAC Adsorption Systems as needed. Staff recommends that City applies for construction funding from the Drinking Water State Resolving Fund for the purchase and construction of the TCP removal treatment systems. The TCP fund will then be reserved for on-going operations and maintenance cost.


1. Resolution 2016-



WHEREAS, the groundwater produced by the City of Livingston’s water supply wells contains 1,2,3- Trichloropropane (TCP); and

WHEREAS, the TCP concentrations range between 20 parts per trillion (ppt) and 780 ppt which is significantly above the State Water Resources Control Board Division of Drinking Water (SWRCB­ DDW) recommended Maximum Contaminant Level of 5 ppt; and

WHEREAS, the City desires to procure up to ten (10) GACAS to remove TCP from the groundwater supplied to customers; and

WHEREAS, the City solicited bids from GACAS manufacturers in accordance with City’s purchasing procedures; and

WHEREAS, four bidders responded to the City’s request for bids: Calgon Activated Carbon, Evoqua Water Technologies, Westech Engineering, and Loprest Water Treatment Company; and

WHEREAS, staff has reviewed the bid packages and recommends that the contract for the supply of the GACAS be awarded to Loprest Water Treatment Company;


WHEREAS, the City Council of the City of Livingston hereby finds as follows:

A. Competitive bidding procedure for the supply of up to ten (10) GACAS were adequately followed; and

B. There is a benefit to the City procure the equipment separately from construction;

NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Livingston as follows:

Section 1. The above recitals are true and correct findings of the Livingston City Council.

Section 2. The contract to supply up to ten (10) GACAS is awarded to Loprest Water Treatment Company.

Section 3. The Interim City Manager is hereby authorized and directed to sign agreements with Loprest Water Treatment Company up to $2,165,000 or $216,500 per GACAS.

Section 4. This Resolution shall take effect from and after the date of its adoption.

Section 5. Each portion of this resolution is severable. Should any portion of this resolution be adjudged to be invalid and unenforceable by a body of competent jurisdiction, then the remaining resolution portions shall be and continue in full force and effect, except as to those resolution portions that have been adjudged invalid. The City Council of the City of Livingston hereby declares that it would have adopted this resolution and each section, subsection, clause, sentence, phrase and other portion thereof, irrespective of the fact that one or more section, subsection, clause sentence, phrase or other portion may be held invalid or unconstitutional.

Passed and adopted this 18th day of October, 2016, by the following vote:




Rodrigo Espinoza, Mayor of the City of Livingston


I, hereby certify that the foregoing resolution was regularly introduced, passed and adopted at a Regular Meeting of the City Council of the City of Livingston this 18th day of October, 2016.

Antonio Silva, City Clerk of the City of Livingston