COLLECTION SYSTEM O&M AND ASSET MANAGEMENT AT LACSD. Anthony Howard, PE Supervising Engineer Water Reclamation Plants Section
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1 COLLECTION SYSTEM O&M AND ASSET MANAGEMENT AT LACSD Anthony Howard, PE Supervising Engineer Water Reclamation Plants Section April 20, 2015
2 Sanitation Districts of Los Angeles County
3 Wastewater Collection Systems Trunk Sewers 1,400 miles Size Ranges from 8 to 144 inches 8 to 15 inches 32% 16 to 27 inches 37% >27 inches 31% 48 Pumping Plants: 150 gpm to 60 MGD Annual Wastewater Collection System Section Operating Budget ~$42 million
4 AV and SCV Collection Systems
5 Joint Outfall System (JOS)
6 District Sewer System
7 Collection System Organizational Structure
8 Collection System Organizational Structure
9 Collection System Maintenance Facilities
10 Regulatory Requirements 2006 SWRCB Order Established Waste Discharge Requirements For Sewer Systems with >1 mile of sewer Prohibits SSOs Requires Electronic Reporting of SSOs Requires Sewer System Management Plan LACSD has 20 separate collection systems registered under the Order
11 Levels of Service Zero preventable SSOs per 100 miles per District Respond to the scene of all SSOs within 1 hour Less than 5 odor complaints for each District and JO system Complete 100% preventative maintenance per year
12 Number of Sewer Overflows Calendar Year
13 Management Systems Custom GIS Application Oracle WAM Work Management/CMMS Asset Management SCADA Actuate BIRT Old Fashioned Paper Documents
14 GIS Application
15 Oracle WAM Assets Preventative Maintenance Scheduling Corrective Work Work History Asset Cost Purchasing Time Keeping
16 Central Alarm Center
17 SCADA System
18 Paper Maps
19 Collection System O&M Line Cleaning/Checking Closed Circuit Television (CCTV) Inspection Flow Monitoring Odor & Corrosion Control
20 Line Cleaning/Checking Annual Production about 800 miles Work scheduled with WAM software Cleaning Frequency Generally based on size Special cleaning frequencies for: Siphons Roots FOG & Debris
21 Bag Cleaning Overview WINCH TRUCK DUMP TRUCK PORTABLE BLOWER
22 CCTV Program Production miles Annually 2 LACSD CCTV Shifts + Contractor Inspection Frequency Every 5 to 15 years (Size & Pipe Type) Emergency Inspections
23 VIDEO CCTV Results REACH REPORTS EMERGENCY INSPECTIONS
24 Flow Monitoring ~750 sites monitored annually ~60 Wet Weather Monitoring Locations Cross Connection Flow Verification Large Diameter Flow Monitoring Contract
25 Odor & Corrosion Control
26 Odor & Corrosion Control Methods FERROUS CHLORIDE CAUSTIC SHOCK DOSING CARBON SCRUBBERS CROWN SPRAY
27 Crown Spray Process
28 Results of Corrosion
29 Results of Corrosion
30 Sewer Replacement, Repair, and Relief Accelerated Corrosion Rates $1.15 Billion Invested Since 1983 About 80% to Address Corroded RCP Roughly 60% Rehabilitated, 40% New Pipe PVC Lined RCP for 42 and Greater VCP for Pipe Less than 42
31 Sewer Replacement, Repair, and Relief
32 Pumping Plant Upgrades Installation of: Switchboards Variable-Frequency Drives w/ Bypass Starters Automatic Transfer Switches Manual Transfer Switches Programmable Logic Controllers / UPS Backup Redundant Level Transmitters / Controllers Redundant Bypass Override Controls
33 Pumping Plant Upgrades Pumping Plants Group I 3 Plant Pilot Project (Telemetry Only) Pumping Plants Groups II thru VI Approximately 8 Plants per Group (Electrical Modifications) Discrete Pumping Plant Projects 7 Plants (Pump Replacement, Wetwell Enlargement, Generator Installation)
34 Engine Generator Sets 24 Diesel Engine Generator Sets CAT/Quinn Power Systems Low Bid: $998, ,500 kw kw kw kw kw 3 80 kw 6 50 kw 4 30 kw
35 Asset Managment 1 st Generation MainFrame
36 Work Request
37 Background 1 st Generation MainFrame 2 nd Generation - Oracle Work Asset Management (WAM)
38 Goals Develop asset information Optimize PMs Improve planning and scheduling of work orders Track schedules and cost of work performed Improve inventory management Retain knowledge within the organization Make decisions based on cost and risk
39 Asset Information?
40 Asset Information?
41 Life Cycle of An Asset Planning and Designing Decommissioning and Salvage Rehabilitation and Replacement Acquisition/Installation/ Construction Service Initiation Operation and Maintenance Implementing Asset Management, NACWA, AMWA, WEF, 2007
42 Asset Information Special Provisions O&M Manual Shop Test Data Field Test Report Manufacturer Data Spec Templates Warranty Information
43 Manufacturer Data SERIAL NO. DWG NO. MODEL NO. MANUFACTURER WARRANTY EXP. DATE
44 Specification Template Manufacturer Cascade Capacity (GPM) 6250 TDH (ft) 22.6 RPM 1175 HP 60 Drive VFC Discharge Flange Size 18 Discharge Pipe Diam. 18 Coupling Type Spacer Bowl Diameter 25
45 Equipment Documents Special Provisions Shop Test Results O&M Manual Spec Template DOC#
46 Bills of Material (BOM)
47 WAM Building Blocks
48
49 JWPCP Effluent Management Existing Ocean Discharge System Royal Palms Beach 12-ft Tunnel (1958) 8-ft Tunnel (1937)
50 Asset Management Background Goals Current Status Pilot Project Work Orders
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