1998 AGN JUN 16 I11 - Laserfiche WebLink

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CITY OF COLTON AGENDA REPORT For the Council Meeting of June 16, 1998 TO: HONORABLE MAYOR AND CITY C NCIL APPROVAL: HENRY T. GARCIA, CITY MANAGE 4 FROM: THOMAS K. CLARKE, UTILITY DIRECTOR SUBJECT: $6 880 000 FOR THE MWWTP 2 MGD ERICON NEXPANSION S , INC. IN THE AMOUNT F AND RENOVATION FOR HYDRAULIC RELIABILITY DATE: JUNE 1, 1998 BACKGROUND: As Council is aware, on April 7, 1995, the Regional Water Quality Control Board (RWQCB) adopted Cease and Desist Order No. 95-36, ordering the City to make certain improvements to the City's Secondary Wastewater Treatment Plant. As a result of the Cease and Desist Order, the Council and the Utilities Commission moved quickly to determine a course of action to comply with the RWQCB directives. The final decision, made on January 16, 1996 and modified slightly on February 21, 1996, was to authorize Krieger and Stewart to complete the design plans. Krieger and Stewart performed all of the required design work on time, and the State Water Resources Control Board (WRCB) has approved the plans and specifications for the project and awarded a State Revolving Fund loan to Colton for the construction of the project. After the plans and specifications were approved by the WRCB, Plant No. 3's digester had to be drained due to a problem with the re -circulation pumps. At that time, the digester cover was inspected and found to be unsafe due to structural damage resulting from age. In reviewing the estimated construction cost ($400,000), staff requested Krieger and Stewart to add the digester cover to the expansion and renovation plans and specifications as a bid alternate. By adding the digester cover to the overall project saved the City money by cutting the cost of the design of the plans and specifications ($50,000), bidding documents and construction mobilization costs. The scope of work to be performed included the replacement of the digester cover, even though the replacement of the digester cover was not in the original project's description approved by WRCB. The City had verbally requested that the WRCB include the replacement of the digester cover in the project's scope of work to be performed. Initially, the WRCB denied the verbal request, but recommended that it be justified by the City in writing. Krieger and Stewart prepared a formal appeal on behalf of the City citing that the cover replacement cost is less than the cost to re -coat the cover (several times) over the life expectancy of the unit. The WRCB approved the appeal, and the digester cover will now be paid from the State Revolving Fund proceeds. Page 1 of 3 Item# II