Engineering Department Wastewater Treatment

Transcription

1 Engineering Department Wastewater Treatment Prepared by: Rich Davidson, Director Assisted by: Mary Phelps Verle Holland Steven Tam Andy Yeung Gina De la Torre Serenity Cummings

2 Engineering Department Wastewater Treatment MISSION: To provide continuous operation and maintenance of the City of Richmond Municipal Sewer District, treatment plant for domestic, commercial, and industrial wastewater in the Richmond area of Contra Costa County. Overview: Digester Station This program is organized via a 20-year contract with Veolia Water North America under the direction of the City Engineer. The facility consists of screening, grit removal, preparation, primary sedimentation, activated sludge, secondary clarification, anaerobic sludge digestion, chlorination, and de-chlorination. The Plant Capital Improvement Program (CIP) projects are evaluated using the following criteria established by the City and Veolia: Fuel Cell Project Projects needed for health and safety. Projects needed to maintain the quality of effluent flow. Projects mandated by regulatory agencies. Projects that ensure adequate process reliability. Projects that improve efficiency and effectiveness. Funding Sources Wastewater Bond $947,188 Program Highlights Wastewater Treatment Plant (WWTP) Plant Improvements Digester Upgrades (#1, & #2); FY FY2009 This upgrade is required in order to comply with the mandatory for Code of Federal Regulations (CFR) Part 503 compliance. Using power generated by the Fuel Cells, the cost for energy consumption at the treatment plant will decrease dramatically. Once completed, the upgrade will help improve the efficiency of the anaerobic digested biosolids process. (Combined Program Cost $5,500,000) D-1

3 Aeration Basins FY2006 FY2009 This project will facilitate solids removal, thus increasing wastewater treatment efficiency. Program Cost ( $3,073,215) Effluent Water Reuse Project FY2006-FY2007 In addition to complying with the Waste Minimization Mandate from the Regional Water Quality Control Board, this project will support the work needed to pursue use of reclaimed water for various needs, i.e. irrigation, non-potable water for wash-down, etc. (Program Cost $475,000) Clarifier Improvement/Upgrade FY2006-FY2007 In order to maintain compliance with the discharge requirements of the City s National Pollutant Discharge Elimination System (N.P.D.E.S.) permit, this project will upgrade and/or repair Clarifier(s) as needed. The Clarifier(s) at the plant are aging and becoming extremely inefficient in the treatment process of wastewater. (Program Cost $403,200) Influent Pump Replacement FY2006-FY2007 This project replaces Influent Pump(s) with more energy efficient ones. The influent pumps at the headworks are reaching the end of their useful life. (Program Cost $1,231,700) Performance Measures A set of performance measures have been designed to set goals and meet target dates. The performance levels established are for Wastewater s Capital program. There is also contract language with milestones and deadlines for completion. Completion of Capital project within two (2) months of the approved schedule. Keep the budget costs for the Capital projects within the adopted budget. Better project delivery costs for construction costs Contract language milestones Strict compliance with all local, state and federal Regulatory Agency requirements is the Wastewater Treatment Plant s main priority. This will be accomplished by continuous participation of staff in off-site conferences, trainings, and workshops. D-2

4 Wastewater Treatment Engineering Department FY through FY CIP yr Strategic Goals 5yr Goal 1-yr Target Estimate 1-yr Target 2-yr Target Performance Outcome: 1 - % of CIP projects delivered within 2 months of approved baseline schedule 85% 85% 75% 85% 85% 2 - % of CIP projects that are completed** within the approved baseline budget 90% 90% 85% 90% 90% 3 - Project delivery costs (exclusive of city-wide overhead) as % of the total construction costs for completed costs: less than $500,000-30% 30% 35% 30% 30% between $500,000 and $3M- 25% 25% 28% 25% 25% greater than $3M- 15% 15% 20% 15% 15% Total (all construction costs) 4 - % of operations and maintenance divisions rating new or rehabilitated capital facilities as being functional and sustainable after first year of use 80% 80% 80% 80% 80% 5 - % of customers rating new or rehabilitated CIP projects as meeting established goals (4 or better based on a scale of 1-5) 85% 85% 85% 85% 85% Notes: * Projects are considered to be "delivered" when they are available for their intended use. ** Projects are considered to be "completed" when the final cost accounting has occurred and the project has been accepted. ***Not applicable. D-3

5 City of Richmond FY FY CIP 3a. Wastewater Treatment Prior Year Project Name FY FY FY FY FY FY Year Total 1 Digester Upgrades #1 & #2 2 Aeration Basins 3 Effluent Water Reuse 4 Clarifier #2 Improvement/Upgrage 5 Influent Pump Replancement $838,040 $3,073,215 $475,000 $403,200 $1,231,700 $3,850,000 $3,073,215 $475,000 $403,200 $1,231,700 $1,650,000 $5,500,000 $3,073,215 $475,000 $403,200 $1,231,700 Subtotal Wastewater Treatment $6,021,155 $9,033,115 $1,650,000 $10,683,115 Total Funded $6,021,155 $9,033,115 $1,650,000 $10,683,115 Total Unfunded Sources WW Bond Fund $6,021,155 $9,033,115 $1,650,000 $10,683,115 Unfunded Sources Total Wasterwater Treatment $6,021,155 $9,033,115 $1,650,000 $10,683,115

6 Richmond 2006/ /11 Capital Improvement Program Project Description Report Project Name: Digester Upgrades #1 & 2 Project Manager: Department Responsible: Project Description: Rich Davidson Engineering - Wastewater Treatment Plant Return to service and install digester odor control system. Replace feed, transfer piping and valves. Replace boiler and heat exchanger used to maintain temperatures in Anaerobic Digester. Justification: Allows the plant to operate more efficiently. Total Estimated Cost: $5,500,000 Source Of Funding Fund No Fund Name Requested FY Projected FY 07/08 Projected FY 08/09 Projected FY 09/10 Projected FY 10/11 06/ WWB WW Fund $3,850,000 $1,650,000 1

7 Richmond 2006/ /11 Capital Improvement Program Project Description Report Project Name: Project Manager: Department Responsible: Project Description: Aeration Basins Rich Davidson Engineering - Wastewater Treatment Plant Provide channel spray water system, install/repair spray system, repair/replace valves and replace mechanical aeration with diffused air system. Justification: Allows the plant to operate more efficiently. Total Estimated Cost: $3,073,215 Source Of Funding Fund No Fund Name Requested FY Projected FY 07/08 Projected FY 08/09 Projected FY 09/10 Projected FY 10/11 06/ WWB WW Fund $3,073,215 1

8 Richmond 2006/ /11 Capital Improvement Program Project Description Report Project Name: Project Manager: Department Responsible: Project Description: Effluent Water Reuse Rich Davidson Engineering - Wastewater Treatment Plant Install pilot water treatment system (multimedia filters/ro) to reuse plant effluent (150 gpm system). Justification: Utility cost savings. Total Estimated Cost: $475,000 Source Of Funding Fund No Fund Name Requested FY Projected FY 07/08 Projected FY 08/09 Projected FY 09/10 Projected FY 10/11 06/ WWB WW Fund $475,000 1

9 Richmond 2006/ /11 Capital Improvement Program Project Description Report Project Name: Clarifier #2 Project Manager: Department Responsible: Project Description: Rich Davidson Engineering - Wastewater Treatment Plant Replace center drive, repair distribution structure, recoat surfaces, replace grating and perform structural work on rakearms. Justification: Plant efficiency. Total Estimated Cost: $403,200 Source Of Funding Fund No Fund Name Requested FY Projected FY 07/08 Projected FY 08/09 Projected FY 09/10 Projected FY 10/11 06/ WWB WW Fund $403,200 1

10 Richmond 2006/ /11 Capital Improvement Program Project Description Report Project Name: Project Manager: Department Responsible: Project Description: Influent Pumps Rich Davidson Engineering - Wastewater Treatment Plant Replace existing pumps with higher capacity (20 MGD) pumps and high efficiency motors; install Variable Frequency Drives (VFD's) for influent pumps; replace discharge check valves. Justification: Save on energy cost, allows the plant to be operated more efficiently. Total Estimated Cost: $1,231,700 Source Of Funding Fund No Fund Name Requested FY Projected FY 07/08 Projected FY 08/09 Projected FY 09/10 Projected FY 10/11 06/ WWB WW Fund $1,231,700 1