DC WATER CAPITAL IMPROVEMENT PROGRAM (CIP)

Transcription

1 DC WATER CAPITAL IMPROVEMENT PROGRAM (CIP) District of Columbia Water and Sewer Authority of Maryland Thursday, April 7, 2016 George S. Hawkins, General Manager Presented by: Liliana Maldonado, Director, Engineering and Technical Services

2 DC Water: Overview Created in 1996 Public agency Operate and maintain the water, sewer and storm water systems in Washington, DC Operate Blue Plains Advanced Wastewater Treatment Plant Purchase water from the Washington Aqueduct Independent of the DC government 2

3 Strategic Goals and Outcomes GOAL 8: OPTIMALLY MANAGE INFRASTRUCTURE Blue Horizon Strategic Goals GOAL 9: ENHANCE OPERATING EXCELLENCE Reduce Water Main Breaks Reduce Water Quality Complaints Improve in Customer Satisfaction DC Water 10 Yr. Target 3

4 Upcoming Work Water System 2016 Water System Facilities Plan Update 4

5 Small-diameter water mains Replacement and rehabilitation Program Elements in the Water System Large-diameter water mains Condition assessment (incl. leak detection) Rehabilitation and replacement Large valve replacements Drinking water storage Cleaning and Inspection Upgrades and repairs New storage tanks Pumping station improvements Upgrades Optimization Miscellaneous Water Quality, Water Age Studies, Piloting 5

6 10-Yr Capital Disbursement in the Drinking Water System Total: $636.0m 6

7 Significant Drinking Water Projects Planned for Next 5-Years Category / Project Name FY16 - FY20 Signicant Projects in the Water Service Area A/E Est. Fee Construction Est. Fee Remarks Small Diameter Water Main Replacements SDWMR 12, 13, 14, 15, 16 A - Repl. Contracts DC Water $30-50M Distribute Equally over 5 years - In-House Design SDWMR 12, 13,14, 15, 16 B - Repl. Contracts DC Water $30-50M Distribute Equally over 5 years - In-House Design SDWMR 12, 13, 14, 15, 16 C - Lining Contracts $2-3M $20-30M Distribute Equally over 5 years - Consultant Design SDWMR 12, 13, 14, 15, 16 D - Special Contracts $3-5M $30-50M Distribute Equally over 5 years - Consultant Design Large Diameter Water Main Rehabilitation 20" Main at Constitution Ave NE $ k $3-5M 66-inch N Street Repairs - PCCP $ k $2-4 M 66-inch Capitol Hill Assessment and Rehabilitation - Steel $ k $6-9 M Steel Water Mains Contract 2 $ k $3-5M 30" PCCP Franklin Street NW $ k $5-8M Large Diameter Water Main Rehab 4A $ k $ M Large Diameter Water Main Rehab 4B $ k $5-6M Large Diameter Water Main Rehab 4C $ k $6-8M Large Diameter Water Main Rehab 4D $ k $4-6M Large Valve Replacements Large Valve Replacements 17 $ k $4-6M Large Valve Replacements 18 $ k $4-6M Pipe Condition Assessment Pipe Condition Assessments PgMC $3-5M Distribute Equally over 5 years Storage Facilities Soldiers Home Impervious Membrane and Rehabilitation $ k $6-8M Elevated Tank Rehabilitation $ k $2-3M Fort Stanton #2 Impervious Membrane $ k $2-3M St. Elizabeths Tower - new $1.5M $13-16M St. Elizabeths Tower - Mitigation $ k $5-8M 2nd High Elevated Tank - new $ M $8-10M 4th High Elevated Tank - new $ k $3-5M Water Pumping Station Upgrades BSPS & Meter Shop Roof & Other Upgrades $ k $4-6M Bryant Street PS Spill Header Upgrades $ k $3-4M 7

8 Upcoming Work Sewer System 2016 Sewer System Facilities Plan Update 8

9 Program Elements in the Sewer System Pumping Station Improvements Sanitary & Stormwater Screens, Washer and Compactors Local Sewers Program Inspection & Rehabilitation Major Sewers Program Inspection, Assessment & Rehabilitation Creek Bed Sewer Rehabilitation Inspection & Rehabilitation Sewers Under Buildings Inspection & Rehabilitation Abandonment Miscellaneous Structures Inflatable dams Flow metering and monitoring 9

10 10-Yr Capital Disbursement in the Sewer System Total: $651.9m 10

11 Significant Sewer Projects Planned for Next 5-Years 11

12 Future of the CIP and Its Drivers Transition from fewer mega-projects to many more smaller projects Transition to doing more projects in Water & Sewer Service Areas (in the District of Columbia) Balancing multiple objectives such as: Optimized CIP delivery Construction market MBE/WBE goals CIP funding constraints Risk management/asset-life cycle optimization Sustainability and energy efficiency goals Innovation goals Achieving a steady-state 10-yr CIP 12

13 CIP Delivery Structure Current DC Water Future DC Water Water PgM Sewer PgM WTP PgM Clean Rivers Project Water & Sewer CIP PgM PgMC Enterprise Asset Management AM PgMC WTP PgM WTP PgMC Clean Rivers Project PDC Manager PDC- Water PDC Manager PDC- Sewer 13

14 Disbursements - Capital Projects Total: $3.364M 14

15 Disbursements - Capital Projects (cont.) ($000 s) * Cash disbursements basis 15

16 Prioritization of Spending 16

17 Potential Future RFQ/Ps Permitting Support Services IDIQ for Condition Assessment PDC for Sewer Service Area (one for now need for more TBD) Additional PDC(s) for Water (TBD) Project-Specific RFQ/P s for large and/or complex projects Program Controls Implementation Project(s) TBD GIS Implementation (including as-builts) 3 rd Party Construction Management for all projects 17

18 Water & Sewer Construction Deidre Saunders Manager, Water & Sewer Construction

19 CIP Drivers Impacting Water & Sewer Construction Program Board of Directors approved Small Diameter Water Main replacement & rehabilitation rate of 1 percent per year beginning 2010 Sewer system Facility Plan indicates similar rehabilitation growth in the coming years Ongoing sewer system condition assessments for small-diameter sewers and upcoming similar assessments for major, large-diameter sewers Major upgrades to water & sewer facilities, including pumping stations, on the horizon

20 Construction Management Approach Increased in-house staff for linear construction Hired Consultant management staff to augment in-house resources to handle CIP workload peaks and specialty projects since 2014 Firms on board since 2014 under multi-year agreements

21 Construction Management Approach Evaluation of future construction management (CM) needs over the next 12 to 18 months, likely resulting in RFP Designers should not be Construction Managers 3 rd party CM approach desired Open to Alternative Project Delivery methods for larger assets

22 Blue Plains AWTP

23 Blue Plains Service Area GOAL: Plan and deliver a capital improvement plan that supports Blue Plains Advanced Wastewater Treatment Plant in: meeting the National Pollutant Discharge Elimination System standards (NPDES) permit requirements improving and enhancing our wastewater treatment facility and processes to provide continued effective wastewater treatment performance, sustainability, and efficiency Programs: Nitrogen Removal Biosolids Management Blue Plains Tunnel Construction Other Plant-Wide Upgrades

24 Nitrogen Removal Program Highlights

25 Biosolids Program Highlights Produce Class A product using thermal hydrolysis Reduce quantity of biosolids shipped off-site Use biogas generated to produce steam and power Successfully started-up since October 2014 Cambi THP Reactor Pre-Dewatering Digesters and CHP 25

26 Future Projects FY18 and Beyond

27 Basic Ordering Agreement - 5 Objective: Professional services (design, investigations, inspections) agreement with task orders assigned on an as-needed basis. Potential projects include: Design of PSW pumping systems upgrades Upgrades to Primary Treatment Facilities Plant Influent Sewer Rehabilitation Sludge Dewatering Systems Scum Systems Upgrades. Components: Civil, Arch., Structural, Mechanical, HVAC, etc. Status: Pre-advertisement Budget/Capacity: $6 MM Schedule: 5 years (2017 through 2021) 27

28 Electrical Power Monitoring Network ($4MM, 2018) Pre-dewatering Additional Centrifuges ($8MM, 2020) Electrical Substation Replacements ($25MM, 2021) Control Systems Replacement ($30MM, 2020) Upcoming Projects in Planning 28

29 FY16 FY17 Upcoming Construction Blue Plains AWTP 29

30 Raw Wastewater Pumping Station 2 Objective: Upgrade and replace aging electrical and mechanical equipment: From continuous exposure and damage from corrosive H 2 S environment Replace and relocate sensitive electrical equipment Components: Heavy mechanical, buried utility relocation power, process water, and stormwater Design: 100% Cost: Engineer s estimate: $27MM Schedule: Construction start around July

31 Plant-Wide Drainage Improvements Objective: Resolve inadequate drainage issues and improve safety and vehicle access issues: Provide two site runoff pumping stations (SRPS-10 and SRPS-11) Repaving and re-grading Perimeter Rd. S, Aeration Rd and Solids Rd. Components: Pump stations, inlets, pipes, paving and re-grading. Design: 75% Cost: Engineer s estimate: $3 MM Schedule: Construction start January

32 Gravity Thickener Upgrades Phase II Objective: Provide overall reliability improvements to rehabilitate and upgrade: Primary Sludge Screening and Degritting Building (PSSDB) Rehabilitate GT5 & 6 Replace equipment in GT 7 10 Components: Mechanically complex project involves mechanical, electrical, structural, and HVAC work in addition to I&C work Design: 80% Cost: Engineer s estimate: $24 million Schedule: Construction start 2Q-FY17 32

33 Filter Influent Pumps 1-10 Objective: Upgrade and replace aging mechanical and electrical equipment: Replace the filter influent pumps, Improve/protect pump intake conditions Instrumentation and controls upgrades Components: Heavy mechanical, electrical system upgrades, I&C Design: 30% Cost: Engineer s estimate: $19MM Schedule: Construction start May

34 Filter Influent Channel Lining Objective: Filter Influent Channel concrete repairs to mitigate leakage: Repair channel construction and expansion joints Install PVC liner full length and depth of channel Components: Channel PVC liner, filter deck expansion joint repairs, new filter deck top-coat Design: 95% Cost: Engineer s estimate: $9 MM Schedule: Construction start January

35 QUESTIONS? 35