2003 AGN AUG 05 I20 - Laserfiche WebLink

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CITY OF COLTON Item #20 AGENDA REPORT For the Colton Utility Authority Meeting of August 5, 2003 TO: HONORABLE CHAIRPERSON AND MEMBERS OF THE COLTON UTILITY AUTHORITY FROM: ERIC FRASER, DIRECTOR OF WATER AND WASTEWATER OPERATIONS SUBJECT: AWARD OF BID FOR PREPURCHASE OF RESIN FOR THE WELL NUMBERS 15/17 & WELL NO. 24 PERCHLORATE TREATMENT PLANTS DATE: July 28, 2003 BACKGROUND In April of 2002 the City shut down Well Nos. 15, 17, and 24 due to the water produced by those wells exceeding the revised action level for perchlorate. Emergency inter -ties were activated with the City of San Bernardino and the Riverside Highland Water Company to meet system demand during the summer months. Additional wells were also constructed to assist with meeting the water supply needs of the City. Due to the limited amount of conveyance capacity to move water from the new wells into the Western Pressure Zone, alternative supplies will be necessary to meet system demand this summer. The reactivation of the impacted wells utilizing wellhead treatment will restore the City's water supply to pre -contamination levels. In January of 2003, the CUA passed Resolution No. CUA -2003-01, that Declared An Emergency Condition, Requiring Immediate Action to Ensure the Reliable Delivery of a Pure, Wholesome and Potable Water Supply and Negotiation/Execution of Contracts as Necessary for Emergency Repairs and Services to Complete a Design -Build Wellhead Treatment System for Well Nos. 15, 17, and 24. The design and construction of those facilities is currently underway. DISCUSSION/ANALYSIS The City has been successful in securing —$1,250,000 in funding from the Regional Water Quality Control Board (RWQCB) and an additional $1,000,000 from Goodrich Corporation to be used exclusively for the implementation of wellhead treatment of the perchlorate plume. These funds cannot be used to purchase replacement water or for any other purpose. After the initial resolution was passed, the City was successful in receiving matching grant funds through proposition 50 to construct the wellhead treatment systems. The funds received from the RWQCB can be used as the city's matching contribution to the project. Now that these additional funds are available, it is in the best interest of the City to expand the initial scope of work to include cost recovery for engineering, ancillary system design and construction, telemetry, spare parts, resin pre -purchase and site security. Force account costs for construction and project administration can also be recovered through the grant. Staff reviewed proposals from three vendors who could provide wellhead treatment systems: Basin Water Technologies, U.S. Filter Corporation, and Calgon Carbon Corporation. The proposals submitted by U.S. Filter and Calgon Carbon both utilized a non-regenerable resin technology. The proposal submitted by Basin Water Technology utilized a regenerable resin. A synopsis of the proposals is tabulated below: * Based on 1000 AF per well. Due to the fact that the wells are located in or adjacent to residential neighborhoods, staff has concerns regarding the impact of the truck traffic that would occur every few days to replenish and dispose of the brine Basin Water Calgon U.S. Filter Capital Cost $2,553,750 $1,415,889 $605,250 Cost/Acre Foot Treated- (All three wells combined) $350 $660 $435 Total First Year Annual Cost * $2,903,750 $2,075,889 $1,040,250 * Based on 1000 AF per well. Due to the fact that the wells are located in or adjacent to residential neighborhoods, staff has concerns regarding the impact of the truck traffic that would occur every few days to replenish and dispose of the brine