The URL can be used to link to this page

Home My WebLink About06 - BA-032 - Big Canyon Reservoir Sediment Hauling & DisposalFebruary 27, 2001 CITY COUNCIL AGENDA ITEM NO. 6 TO: Mayor and Members of the City Council FROM: Public Works Department SUBJECT: APPROVAL OF CONTRACT AMENDMENTS FOR BIG CANYON RESERVOIR SEDIMENT HAULING AND DISPOSAL UkKOINIF047i, Rt G 1. Approve Amendment No. 1 to the contract with the hauling firm, Rust & Sons Trucking, for the removal of additional sediment stockpiles from the Big Canyon Reservoir site in the amount of $40,200. 2. Approve Amendment No. 1 to the contract with the disposal firm, Sonas Earth Sciences of Arizona, for disposal of the additional sediment at Big Canyon Reservoir in the amount of $17,100. 3. Approve a budget amendment appropriating $57,300 from the Water System Reserve Fund Balance to the Water Fund Account (Repairs and Betterments to Water Facility Sites) 7502- C5500084. DISCUSSION: On June 27, 2000, the Council approved the retention of both firms listed above for the removal of an estimated six inches (900 tons) of copper laden sediment from Big Canyon Reservoir (BCR) site. A copy of the June 27, 2000, staff report is attached for background information. After completion of confirmation testing of the subgrade, it was discovered that the copper laden sediment extended another six inches below the surface. Additional chemical testing revealed that approximately 1200 more tons of sediment exceeded the maximum level of copper for normal disposal in local landfills. The 1200 additional tons have been stockpiled at BCR and are ready for hauling and disposal at a recycling center in Arizona. The remaining surface area at BCR has been chemically tested and the results indicate that no further removal of sediment will be necessary. The County Health Department has accepted the BCR grounds as clear from excessive copper laden sediment based on the final chemical testing of the site. SUBJECT: APPROVAL OF CONTRACT AMENDMENT NO. 1 FOR BIG CANYON RESERVOIR SEDIMENT DISPOSAL February 27, 2001 Page 2 Rust & Sons Trucking and Sonas Earth Sciences, have both agreed to dispose of the remaining stockpiles of copper laden sediment under the terms and conditions of their original contracts, except as amended, with the City. Sonas Earth Sciences agreed to lower the cost per ton in their contract from $20 to $19 per ton. Because of increased fuel costs, Rust & Sons Trucking needed to increase their cost per ton from $32 to $33.50 per ton. Funds to cover the cost of the final disposal would come from the transfer of $57,300 from the Water Systems Reserve Fund to Water Fund Account 7502- C5500084. It is recommended that Amendment No. 1 to each of the agreements be approved as follows: • Rust & Sons Trucking in the amount of $40,200 • Sonas Earth Sciences in the amount of $17,100, to perform the additional work to remove and dispose of the remaining copper laden sediment at Big Canyon Reservoir. Respectfully submitted, C PUBLIC WORKS DEPARTMENT Don Webb, Director By: C 4 104� . Eldon Davidson Utilities Services Manager Attachments: Council Report dated June 27, 2000 Contract Amendment No. t for Rust & Sons Trucking Contract Amendment No. t for Sonas Earth Sciences June 27, 2000 CITY COUNCIL AGENDA ITEM NO. TO: Mayor and Members of the City Council FROM: Public Works Department SUBJECT: BIG CANYON RESERVOIR SEDIMENT DISPOSAL RECOMMENDATIONS: 1. Authorize the retention of the firm of Burns and McDonnell to manage the disposal of sediment from the Big Canyon Reservoir site for $25,370. 2. Authorize contracting with hauling and disposal firms for the disposal of the sediment from the Big Canyon Reservoir site for $28,800. DISCUSSION: The City's water distribution system includes the 200 million - gallon Big Canyon Reservior. This reservoir is uncovered and sediment accumulates in the bottom. Every three to five years the reservoir is drained so the sediment can be removed and the lining can be inspected and repaired. This process is necessary to maintain the quality of the water supplied to the City's system. In April of this year the reservoir was taken out of service for cleaning. Approximately 900 tons of sediment was removed and stock piled at the site. Chemical tests taken on samples from the sediment indicated that it contained levels of copper higher than the local landfills will allow. Alternate disposal sites were investigated and a recycling center in Arizona was found to be the most feasible disposal site. The City is required to coordinate the disposal of materials that can not be taken to local landfills with the Orange County Health Department (OCHD). The OCHD processing, site disposal management, hauling, and disposal require expertise not currently available on the City staff. Waste management and disposal is a specialized field. A proposal has been received from Burns and McDonnell to manage the disposal of the sediment from the reservoir site to the recycling center and coordinating the work with OCHD. The total price for this service is $25,370. Three hauling firms have submitted quotes for hauling the sediment from the site to the recycling center. The low price of $28,800 is from Rust & Sons Trucking. Three quotes were received for the recycling or disposal of the sediment. Sonas Earth Sciences quoted $20 per ton ($18,000 for 900 tons) to accept this sediment. Funds to cover the SUBJECT: Authorization to Dispose of Sediment at Big Canyon Reservoir June 27, 2000 Page 2 cost of the disposal project are available in the Maintenance and Repair Account #5500 -8160 from the Utilities Water Division operating budget for this year. The copper in the sediment comes from the copper sulfate that is periodically used in the reservoir to control the growth of algae. This compound is commonly used in open reservoirs across the nation to arrest algae blooms. It usually takes several treatments during the year to control the algae. Over the years the copper accumulates in the sediment from this treatment process. The City tests the copper levels in the water to assure that the levels do not exceed the maximum standard of one part per million. Our tests show we have maintained our copper levels below this maximum. When the reservoir is covered, algae blooms will not occur and the copper sulfate treatment will no longer be needed. Also, sediment from air borne dust will no longer be entering the reservoir. It is recommended that the firms of Burns and McDonnell, Rust & Sons Trucking, and Sonas Earth Sciences be retained to perform respective necessary services to dispose of the sediment at Big Canyon Reservoir. Res ctfully submitted, P BLIC W4DEPARTMENT Don Webb, Director By: Eldon Davidson Utilities Services Manager F:\ Users \PBN\Shared \COUNCIL \Fy99- OOWune -27 \Sediment at Big Canyon Res.doc AMENDMENT NO. 1 TO PROFESSIONAL SERVICES AGREEMENT WITH RUST AND SONS TRUCKING FOR THE DISPOSAL OF SEDIMENT AT BIG CANYON RESERVOIR THIS AMENDMENT NO. 1 TO PROFESSIONAL SERVICES AGREEMENT, made and entered into this day of February 2001, by and between the CITY OF NEWPORT BEACH, a municipal corporation, (hereinafter referred to as "CITY ") and RUST AND SONS TRUCKING, INC., whose address is 15260 Willow Road, Lakeside, California 92040, (hereinafter referred to as 'Rust') is made with reference to the following: RECITALS: A. On July 5, 2000, a Professional Services Agreement was entered into by and between CITY and Rust, hereinafter referred to as "AGREEMENT'. B. CITY and CONSULTANT mutually desire to amend the AGREEMENT as provided herein. NOW, THEREFORE, the parties hereto agree as follows: 1. Consultant shall provide additional services modifying the termination date of October 28, 2000 and extending the date to May 1, 2001. 2. Consultant shall be compensated for additional services performed pursuant to this Agreement in the amount of forty thousand, two hundred dollars and 00/100 Dollars ($40,200) for a cost of $33.50 per ton. 3. Except as expressly modified herein, all other provisions, terms, and covenants set forth in AGREEMENT shall remain the same and shall be in full force and effect. IN WITNESS WHEREOF, the parties hereto have executed this AMENDMENT NO. 1 on the date first above written. APPROVED AS TO FORM: Daniel Ohl Deputy City Attorney CITY OF NEWPORT BEACH A Municipal Corporation Don Webb Public Works Director RUST AND SONS TRUCKING, INC. BY: Raburn Rust Vice President AMENDMENT NO. 1 TO PROFESSIONAL SERVICES AGREEMENT WITH SONAS CDE RESOURCES FOR DISPOSAL OF SEDIMENT AT BIG CANYON RESERVOIR THIS AMENDMENT NO. 1 TO PROFESSIONAL SERVICES AGREEMENT, made and entered into this day of February 2001, by and between the CITY OF NEWPORT BEACH, a municipal corporation, (hereinafter referred to as "CITY ") and SONAS CDE RESOURCES, INC., whose address is P.O. Box 760, Salome, Arizona 85348 -0760, (hereinafter referred to as "Sonas ") is made with reference to the following: RECITALS: A. On July 5, 2000, a Professional Services Agreement was entered into by and between CITY and Sonas, hereinafter referred to as "AGREEMENT ". B. CITY and CONSULTANT mutually desire to amend the AGREEMENT as provided herein. NOW, THEREFORE, the parties hereto agree as follows: 1. Consultant shall provide additional services modifying the termination date of October 28, 2000 and extending the date to May 1, 2001. 2. Consultant shall be compensated for additional services performed pursuant to this Agreement in the amount of seventeen thousand, one hundred dollars and 00/100 Dollars ($17,100). 3. Except as expressly modified herein, all other provisions, terms, and covenants set forth in AGREEMENT shall remain the same and shall be in full force and effect. IN WITNESS WHEREOF, the parties hereto have executed this AMENDMENT NO. 1 on the date first above written. APPROVED AS TO FORM: Daniel Ohl Deputy City Attorney CITY OF NEWPORT BEACH A Municipal Corporation Don Webb Public Works Director SONAS CDE RESOURCES, INC. BY: Thomas "Greg" Romero Arizona Operations General Manager City of Newport Beach BUDGET AMENDMENT 2000 -01 EFFECT ON BUDGETARY FUND BALANCE: Increase Revenue Estimates Increase Expenditure Appropriations Px Transfer Budget Appropriations SOURCE: from existing budget appropriations from additional estimated revenues from unappropriated fund balance EXPLANATION: NO. BA- 032 AMOUNT: $s7,3oo.00 Increase in Budgetary Fund Balance AND Decrease in Budgetary Fund Balance X No effect on Budgetary Fund Balance This budget amendment is requested to provide for the following: To transfer $57,300 from the Water System Reserve Fund to provide Big Canyon Reservoir sediment hauling and disposal. ACCOUNTING ENTRY: BUDGETARY FUND BALANCE Fund Account 500 3784 REVENUE ESTIMATES (3601) FundlDivision Account EXPENDITURE APPROPRIATIONS (3603) Division Number Account Number Division Number Account Number Division Number Account Number Division Number Account Number Signed: Signed: Administrative Description Water System Reserve Description Description 7502 Water System Repair Program C5500084 Repairs to City Reservoir Sites I Administrative Amount Debit Credit $57,300.00 $57,300.00 a�zG- v? -mod -Cj Director Date Da Signed: City Council Approval: City Clerk Date