Sustainability and Asset Protection at MWRA

Transcription

1 Massachusetts Water Resources Authority Sustainability and Asset Protection at MWRA Frederick A. Laskey Executive Director October 10, 2017

2 What Is MWRA? MWRA provides wholesale water and wastewater services to over 2.5 million customers in 61 communities On average, MWRA delivers an average of 200 million gallons per day to its water customers MWRA collects and treats an average of 350 million gallons of wastewater per day, with a peak capacity of 1.2 billion gallons

3 What Happens When You Don t Do Maintenance? 3

4 In The 1980s, The Regional Sewer System Was In Dire Shape By the early 1970s two new treatment plants were obsolete, in disrepair and unable much of the time to provide the level of primary treatment they were designed for Rapidly expanding demand caused sewage volumes to exceed the capacity of both plants

5 Raw Sewage Poured Into Boston Harbor Daily 5

6 6

7 The Outlook Was Not Much Better For The Water System The $53 million dollars spent on the Quabbin Reservoir in the 1930s was the last major investment in the system Thousands of miles of aging pipelines were leaking millions of gallons of water No plans were in place for upgrades to carry the water system into the next century

8 Dam Maintenance Was Also Underfunded 8

9 MCD Appropriations Were Declining Appropriations by the legislature were on the decline, which in turn led to staffing reductions, which in turn led to the deferral of much needed maintenance and repairs $35,000,000 $30,000,000 $25,000, $20,000,000 $15,000, $10,000,000 $5,000,000 $- Water Divison Sewerage Division

10 Creation Of The MWRA A federal lawsuit forced the creation of the MWRA to take over responsibility for greater Boston s water and sewer systems MWRA assumed responsibility for the water and sewer infrastructure serving greater Boston, and to end the pollution of Boston Harbor from obsolete treatment plants MWRA was created as an independent authority charged with raising its revenue from ratepayers, bond sales and grants MWRA had to establish wholesale water and sewer rates to cover all costs, including a massive capital program to repair and upgrade the systems

11 What Did We Have To Do? 11

12 $7 Billion In Capital Improvements $700 $600 $500 $608 $580 $ Millions $400 $300 $200 $100 $0 $24 $44 $120 $149 $196 $304 $413 $504 $437 $377 $447 $498 $392 $333 $365 $297 $194 $168 $152 $178 $196 $182 $211 $139 $138 $155 $102 $138 $171 $180 $177 Boston Harbor Project Deer Island Asset Protection MetroWest Supply Tunnel Hultman Aqueduct Rehab Spot Pond Supply Mains Covered Storage Projects Braintree-Weymouth Relief Facilities Weston Aqueduct Supply Mains Carroll Water Treatment Plant UV Treatment Union Park East Boston Branch Sewer South Boston CSO Community Managed CSO Projects

13 Over 80% Of Spending Mandated By Federal Or State Regulations $700 Mandated v. Non-Mandated Project Spending $600 $500 $400 Mandated (Court Orders, Consent Orders) Non-Mandated (Pipeline Rehabilitation and Infrastructure Replacement) $300 $200 $100 $0 FY86 FY88 FY90 FY92 FY94 FY96 FY98 FY00 FY02 FY04 FY06 FY08 FY10 FY12 13

14 $2 Billion Modernization Of The Water System New 17.6 mile aqueduct New state-of-the-art treatment plant 7 new covered storage facilities 14

15 $4.5 Billion On The Wastewater Side The 15-year, $3.8 billion Boston Harbor Project completed in 2001 $900 Combined Sewer Overflow Control Program completed in

16 Sewer System Pumping Capacity 1, , , Jul-85 Jul-86 Jul-87 Jul-88 Jul-89 Jul-90 Jul-91 Jul-92 Jul-93 Jul-94 Jul-95 Jul-96 Jul-97 Jul-98 Jul-99 Jul-00 Jul-01 Jul-02 Pumping Capacity, MGD

17 Dramatic Improvements In Water Quality Even In Wet Weather (Before Secondary Treatment and South System transfer) (After Secondary Treatment and New Outfall) Average Enterococcus counts in Boston Harbor in wet weather The lighter the blue, the better 17

18 We Built It, Now We Have To Maintain It 18

19 What Does MWRA Own? 265 facilities spread out over 800 square miles from Chicopee to Boston Harbor 19

20 What Does MWRA Own? Water System Sewer System 2 treatment plants 11 pump stations 16 water tanks 4,700 valves 233 meters 105 miles of tunnels 285 miles of pipelines 2 treatment plants 13 pump stations 4 headworks 6 CSO facilities 208 meters 23 miles of tunnels 240 miles of pipes 20

21 Age Of Water Pipes Years, 35% 1-25 Years, 15% Years, 8% Years, 22% Years, 20% 21

22 Age Of Wastewater Pipes Years, 30% 1-25 Years, 26% Years, 11% Years, 20% Years, 13% 22

23 40-Year Water And Wastewater Master Plans MWRA maintains Water and Wastewater Master Plans which provide the framework for the Capital Improvement Program Currently projects $5 billion over the next 40 years Updated every 5 years 23

24 Master Plan Projected System Reinvestment Needs Over $5 billion over the next 40 years 24

25 Reliability Centered Maintenance Approach MWRA utilizes a specific maintenance strategy on each asset in a facility based on condition monitoring and assessments 67,000 work orders completed per year Less than 0.1% are emergency Craft Hours by Work Order Type Preventive & Predictive, 33% Number & Type of Work Orders Corrective & Project, 22% Corrective & Project, 67% Preventive & Predictive, 78% 25

26 Condition Monitoring Techniques include: Electrical Testing Thermal Imaging Infrared Temperature Vibration analysis Acoustic Ultrasonic Lubrication analysis Ultrasonic thickness TV inspection Acoustical leak detection Cathodic protection testing 26

27 Condition Assessments Components include Roofs, Coatings, Gearboxes, Pumps Identified in the Master Plan Budgeted in the Capital Program 27

28 How Does MWRA Track What It Owns? Computerized Maintenance Management System Maximo 1995 start and fully implemented 120,000 individual pieces of equipment Work order management Maintenance planning and scheduling - Preventive and predictive maintenance - Corrective maintenance 28

29 Who Performs Maintenance? In house staff complete majority of maintenance 491 maintenance staff 40% of all MWRA Contracted services $13 million per year Specialized training, experience or tools One time or intermittent 29

30 Is Enough Maintenance Being Done? Over 36 maintenance metrics are tracked Reviewed daily, monthly, quarterly, and yearly Reported internally and externally For example: 99.9% of all predictive maintenance work orders completed in FY16 10,000 hours of preventive maintenance e completed by operations staff 30

31 Monthly And Quarterly Performance Reporting 31

32 Annual Maintenance Spending Continues To Climb $35 $30 $25 $s in Millions $20 $15 $10 $5 $0 FY86 FY87 FY88 FY89 FY90 FY91 FY92 FY93 FY 94 FY 95 FY 96 FY 97 FY 98 FY 99 FY 00 FY 01 FY 02 FY 03 FY 04 FY 05 FY 06 FY 07 FY 08 FY 09 FY10 FY11 FY12 FY13 FY14 FY15 FY16 32

33 Staffing Has Decreased To Steady State Levels FY05 FY06 FY07 FY08 FY09 FY10 FY11 FY12 FY13 FY14 FY15 FY16 FY17 33

34 New Challenges 34

35 Preparing for Climate Change: Drinking Water System Is In Good Shape Quabbin Reservoir, Belchertown 65 miles west of Boston Elevation 528 feet Wachusett Reservoir, Clinton 35 miles west of Boston Elevation 395 feet Water treatment plant is in Marlborough 85% of water delivered by gravity Lowest elevation of a water tank is 192 feet above sea level 35

36 On The Wastewater Side, Sea Level Rise Was Anticipated In The Design of Deer Island Treatment Plant Deer Island plant fully protected 100-year flood 1.9-foot sea level rise Wave runup of 14 feet on east side and 2 feet on west side On-site power plant ensures uninterrupted power supply Nut Island headworks in Quincy similarly designed for sea level rise 36

37 21 Of MWRA Coastal Sewer Facilities Are Within 15 Feet Of Mean Sea Level 37

38 MWRA s Strategy Short-term At-risk buildings are being fitted with temporary flood barriers Long-term Facility rehabilitation on a 20-year cycle Future rehabilitation contracts will include protection measures 38

39 Envelope Flood Protection Measures Flood logs (exterior) Flood logs (interior) Watertight hatch Flood logs (interior) All flood logs to el

40 Envelope Flood Protection Measures Flood logs (exterior) Install valve for landing drain Raise berm to Flood logs at berm to Flood logs (interior) Flood logs (interior) 40

41 Pipeline Corrosion Original pipe was 77 years old New Pipe was Installed in 2004 with coating and insulation 41

42 Causes of Corrosion Soil properties Electrochemical reactions with other nearby dissimilar metals High levels of hydrogen sulfide In storage tanks, reaction at the interface between the water and the interior surface of the tank wall Effects of stray currents from other structures in the vicinity 42

43 Typical Test Stations and Rectifier Units CTS RFT5 43

44 Corrosion Mitigation text Anode Tape wrapped steel pipe reducer Wire Lead to Test Station Passive Sacrificial Anode System Installation 44

45 The Results 45

46 Deer Island Received Its 6th Platinum Award No permit violations for 10 years in a row! 46

47 Charles River Gets High Marks In its latest annual report card, the EPA has given the Charles River a grade of B for water quality

48 Boston Now Has Some Of The Cleanest Urban Beaches In The Country 48

49 Boston s Waterfront Is The Region s Fastest Growing Zip Code 49

50 Best Drinking Water In The Country 50

51