John Hopkins University and Georgia Tech Leading the Way to Sustainability through Comprehensive Water Management. Presented by Bob Salvatelli

Transcription

1 John Hopkins University and Georgia Tech Leading the Way to Sustainability through Comprehensive Water Management Presented by Bob Salvatelli

2 Learning Objectives The Living, Learning Laboratory: Demonstrative Case Study Tools and Knowledge Needed Integrated Water Management Planning: Holistic Approach to Water Sustainable Water Management in Partnership with Continued Growth Water Reclamation and Reuse as a Strategic Approach The Feasibility Study: Adaptive Benefits of On-Site Ecological Reuse Methodology of Water Balance Collaborative Development to Form Solutions A Complete and Thoughtful Approach to Water Management

3 Who We Are Water Management Consultants Water Balances & Footprint Water Reuse Feasibility Risk Management Flow Monitoring/Metering Water Management Plans Turn Key Developer Technology Integrator Planning/Design/Build Financing Operations Helping Clients Utilize Water Resources More Efficiently

4 Why Water Reuse?

5 Campus Growth Georgia Tech ,000 gsf average growth per year Faculty/Staff: 161 increase per year UG Students: 248 increase per year Grad Students: 297 increase per year Total Population Growth: 706 per year Doubling Gross Square Footage Increases Water Demands

6 Local Water-Related Stresses Aging Infrastructure Rate Pressure 16% CAGR Water Scarcity $30 Combined Water and Sewer Rate Environmental Constraints Rate Increases Are Necessary for Infrastructure Improvements

7 Aging Infrastructure: A Local Concern Atlanta s Water Needs Rely on a System Designed in 1875

8 Georgia Tech s Water Initiatives Rain Gardens / Infiltration Master Cistern Plan Stormwater Reuse Strategic Imperatives Drives Project Execution for Small Yields: Searching for Impactful Solutions

9 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15 Y16 Y17 Y18 Y19 Y20 Y21 Y22 Y23 Y24 Y25 Y26 Y27 Y28 Y29 Y30 30 Year Costs of Water with CAGR $160,000,000 $140,000,000 $120,000,000 $100,000,000 Purchased Water: 1.1 MGD Sewer Discharge: 650 Kgal/Day Water Rate : $8.24 per 1,000 gal Sewer Rate : $20.98 per 1,000 gal $1.4 B $80,000,000 $60,000,000 $40,000,000 $20,000,000 $802 M $564 M $404 M $- 3% 5% 7% 10% Hundreds of Millions of Dollars Demands Executive Attention

10 The Evolution of Water Conservation Simple Solutions Building-Based Solutions Campus-Wide Solutions Reclamation and Reuse Rain Barrels Stormwater Reuse Low Flow Fixtures Stickers The Most Impactful Solution That Exists

11 A more sustainable water cycle: Decentralized Reclamation and Reuse Before After ~Risk Management ~Cost Savings ~Environmental Responsibility

12 Water Reclamation & Reuse Reduces freshwater withdrawal Can restore Rivers / Lakes / Groundwater Levels Expands Muni. Infrastructure Capacity Reliable & local water supply Lower Life Cycle Costs Zero Discharge: reduced contribution to CSOs and wastewater discharge to environment Enhances recreational areas Net energy reductions & lower carbon footprints Multiple Benefits Allow for Cross Campus Collaboration

13 Local Support for Water Reuse The Georgia Environmental Protection Division (EPD) encourages the use of reclaimed water as a substitute for potable water for the purposes identified. - Georgia Department of Natural Resources, Guidelines for Water Reclamation and Urban Water Reuse Water reuse, or the use of reclaimed water is a viable water management practice that may help sustain Georgia s water resources. - Georgia Comprehensive State-wide Water Management Plan Water Reuse Will Mitigate Atlanta s Major Water Crisis

14 Federal Support for Water Reuse U.S. water and wastewater utilities are putting more of an emphasis on water reuse and improving energy and water efficiency, which will benefit both water and energy conservation. In recent years, some states have started to promote decentralized systems that require much less energy for delivery and much lower infrastructure costs. - US Department of Energy Water reuse is the reclamation of water from wastewater plants for beneficial non-potable and potable uses. As freshwater supplies are approaching or have reached full allocation, water reuse is becoming a critical part of community water supplies. - US Department of Interior, Bureau of Reclamation Decentralized Water Treatment and Reuse is becoming Nationally Accepted

15 Campus Risk Mitigation Benefits to Campus: Redundant Water Supply Additional On-Site Storage Reduced Environmental Impact Flexibility & Resilience Drought Municipal infrastructure failures Minimum recovery time Insulation from rising water costs Optimized process water quality and treatment programs Drought Rising Rates Aging Infrastructure N+1: Reliable and Safe Alternatives to Potable Water

16 Feasibility Study Overview Water Footprint Assessment & Economic Validation Water balance & use Non-potable demand WW flow projections Economic assessment Utility Water Assessment Equipment inventory Water quality needs Program admin. Reclaimed water modeling Site & Infrastructure Assessment Infrastructure review Prelim. siting & design Regulatory review Lifecycle Savings Knowledge and Expertise Drives Project to Effective Implementation

17 Water Use by Type Sanitary/D omestic Cooling Heating Irrigation ~425 M Gallons Significant Non Potable Demand Can Be Replaced by Reclaimed Water

18 Gross Campus Water Use % 47% Basin A Remaining Campus Over 200 total Accounts Some buildings share city water meters ~425 M Gal/yr No Data for Greek Housing

19 3- Month Flow Monitoring Study Site 3 60 RCP 400,000 GPD Site 2 18 DIP 200,000 GPD Site 1 18 DIP 200,000 GPD Investigated and Monitored Multiple Extraction Points on Campus

20 Gallons/Day Non-Potable Demand Displacement 900, , , , , ,000 Non-potable Water Demand vs WW Resources Holland: 135K GPD 10 St. P2: 235K GPD WW Flow Measurement Study Pt. 3 (815K GPD) WW Flow Measurement Study Pt. 2 (215K GPD) 300, , ,000 - Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Holland Utility Plant 10th St. P2 Expansion 10th Street P1 Expansion Abundant Resources Available to Displace Utility Water Makeup

21 Holistic Water Management

22 Eco-Commons Master Plan (SW)

23 Proposed Phase 1 Plan: 150K GPD Approximately 11,000 ft 2 Footprint

24 Utility Assessment Overview Biological studies Corrosion studies Automation Treatability studies Equipment Integrity Recommendations Treatment Specifications Conservation Training Modifications Mechanical CONFIDENTIAL Systematic Audit of Existing Conditions to Confirm Reliability

25 Proposed WaterHub Design at GT System Overview: 400,000 GPD ReCip / Hydroponic System Built into new Eco-Commons development, and as a component of master water and stormwater management strategy for campus 150,000 GPD ReCip System Feeds 10 th Street Chiller Plant 1,200 linear ft. of water distribution piping Recycles 46.5 million gallons annually 30% of total utility demands 400,000 GPD Hydroponic Tenant build-out of new parking deck around eco-commons Additional distribution added to Holland Utility Plant 4,200 linear ft. of water distribution piping Recycles 112 million gallons annually 75% of total campus utility demands Water-Centric Eco-Commons Includes WaterHub Technology

26 Complete Build-Out Concept ~Risk Management ~Cost Savings ~Environmental Responsibility Results in 26% reduction in total campus water demand Design Helps Anchor the Centerpiece of the Eco-Commons

27 Dalney Street Parking Deck Concept Streamlined facility that allows for the construction of the Eco-commons Lawn Functional utility that provides a living, learning, laboratory 1,100 parking spaces and 55,000 sq. feet of glass laminated office space Instructional Facility that Compliments the Eco-commons

28 Dalney Street Parking Deck Design Collaborative Design Between Georgia Tech and Sustainable Water

29 Dalney Street Parking Deck Design A Living, Learning, Laboratory

30 Comprehensive Approach to Sustainability Georgia Tech as a Living Learning Laboratory Academics Outreach WaterHub Passive Study Active R&D "I think it also shows an important role the university can play in advancing sustainability and engaging in this idea of the campus as a living laboratory, a place of experimentation and engagement and learning. This (facility) offers an interesting case study for how an institution can move a community toward a bold step in water conservation. It s also exactly the kind of reduction we need to see in order to support a more sustainable future. - Ciannat Howett, Director of the Office of Sustainability Initiatives at Emory Sustainability is an Integral Component of Georgia Tech

31 Johns Hopkins University

32 Sustainable Hopkins Infrastructure Program Innovative organization to promote sustainable development and fiscal savings on campus Started working with group of students in 2013 SHIP Member/Executive in Charge: Michelle Bohrson, Afroditi Xydi. Objective: Decrease the Water-Energy Footprint of Hopkins The student group, SHIP the Sustainable Hopkins Infrastructure Program has helped improve building and operational efficiency in projects ranging from rain gardens to updating all campus light poles to LEDs. Princeton Review s Guide to 332 Green Colleges Energy Efficiency and Progressive Thinking at JHU

33 Baltimore Water Metering in the News Efforts to Alleviate Water Meter Issues are Costly

34 Risks to Water: Rates Are Increasing $16.00 Baltimore Water & Sewer Rates, Tier 1 Water Rate WWTP Infrastructure $14.00 $ % 11% 11% $10.00 $8.14 $7.34 Maintenance/Repair $8.00 $6.00 $6.26 $6.61 $4.00 $2.00 $4.27 $4.92 $5.46 $6.06 Environmental Compliance $- FY 2012 FY 2013 FY 2014 FY 2015 Water Sewer Combined Baltimore: Rates set to rise 11% over next 2 years ( National Average 9%)

35 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15 Y16 Y17 Y18 Y19 Y20 Y21 Y22 Y23 Y24 Y25 Y26 Y27 Y28 Y29 Y30 30 Year Costs of Water with CAGR $14,000,000 $12,000,000 $10,000,000 Purchased Water: 222 Kgal/Day Sewer Discharge: 80 Kgal/Day Water Rate : $6.06 per 1,000 gal Sewer Rate : $8.14 per 1,000 gal $119 M $8,000,000 $6,000,000 $69 M $4,000,000 $2,000,000 $48 M $35 M $- 3% 5% 7% 10% Hundreds of Millions of Dollars Demands Executive Attention

36 Water Quality Permits and Guidelines Permitting and Water Quality Regulated by the MD Department of Environment MDE is developing regulations to encourage the use of highly treated wastewater treatment plant effluent in a variety of commercial and residential settings including purple pipe systems to deliver reclaimed water for residential use as (non-potable) irrigation water.. - Maryland Department of the Environment Ground Water Discharge Permits control the disposal of treated municipal or industrial wastewater into the State s ground water via spray irrigation and other land-treatment applications, as well as into the subsurface by a drainfield or seepage pit. A groundwater discharge permit will contain the limitations and requirements deemed necessary to protect public health and protect ground water quality Parameter Class 1 Class II Class III BOD (mg/l) TSS (mg/l) Turbidity (NTU) ph Coliform (/100ml) Current Water Quality Guidelines E. Coli (/100ml) Class I & II = Restricted Public Access, Class III = Unrestricted Public Access

37 Maryland Wants Reclaimed Water Zero Waste Maryland The O Malley/Brown Administration s Plan to Reduce, Reuse and Recycle Nearly All Waste Generated in Maryland by 2040 Use of reclaimed water is increasing, but remains low relative to leading states. The Department, in consultation with stakeholders, will evaluate options to encourage additional use of reclaimed water, including: Requiring proposed projects or facilities that would use more than a certain threshold quantity of water to use or consider use of reclaimed water; Establishing financial incentives for use of reclaimed water; Conducting outreach and training to potential users of reclaimed water; and Reviewing existing guidelines and treatment requirements for water reuse periodically to identify any unnecessary barriers. - Zero Waste Plan, MDE Types of Water Reuse in MD 2014 MD Reclaimed Water Use Includes: 35 spray irrigation systems (9 golf courses) 4 rapid infiltration systems 3 drip irrigation systems 2 power plant cooling systems Total 8.8MM GPD or 2% of the states total demand. Maryland Strives To Reuse 40% of Their Total Demand By 2040

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39 Johns Hopkins University HVAC Campus Water Use by Type (81 million annual gallons) 44,540,177 56% Estimated Water Out (36%) 28,982,193 36% 6,477,630 8% Non-potable Demand (64%) Domestic Irrigation Total Water In Why Use Potable Water in Utilities When Reclaim Works

40 Gallons per Day Seasonal HVAC/Utility Make-up by Source 300, , , , , , , ,000 50,000 49,355 46,308 51,601 91, , , ,952 67,303 48,329 - Wyman North Plant Main (South) Plant Total NPD Predictable and Readily Displaced with Reclaimed Water

41 Validation of Water Distribution Confirms Project Viability

42 Comprehensive Assessment : Leverage Current Infrastructure to Reduce Risk

43 Site 1 Potential Layout ~ 3,300 ft 2 ~ 3,500 ft 2 Extremely Pliable Lay Out Options that Conform to Space

44 Site 1 Potential Layout Glasshouse system houses mechanical equipment Outdoor system acts as performance landscaping Concept of Mix Design Using Glasshouse and Performance Landscaping

45 GlassHouse with Performance Landscaping Flexible Design Options Allow for Multiple Functionality and Experimentation

46 Site 2 Potential Layout ~ 2,100 ft 2 ~ 5,400 ft 2 Combination of GlassHouse and Performance Landscaping

47 Site 2 Potential Layout GlassHouse lamination to deck Reciprocating Wetland Displaying Both Technologies- Georgia Tech Solution

48 Site 3 Potential Layout ~ 7,200 ft 2 All Under Glass Option but Could be Combination

49 Site 3 Potential Layout Full Indoor System Completely Under Glass with Buried Storage Tank

50 Project Financing Vehicles Benefits No up-front capital Innovative Technologies Leverages superior credit rating Immediate, Guaranteed Savings Long Term Pricing Stability No O&M Responsibilities SW bears majority of risk Water Purchase Agreements ~ Shared Savings Agreement ~ Operating Lease ~ DBO Agreement ~ Performance Contract The Process 1. Develop terms & conditions for WPA 2. Sign Final Contract & Land Lease 3. Project Diligence A. Confirm Constructability B. Validate Economics C. Complete Schematic Design D. Submit for Permits 4. Final design & construction drawings 5. Construction 6. Commission facility Flexible, Innovative Vehicles that Yield Guaranteed Savings

51 O & M under WPA Highly Automated Operations Remote Monitoring Capabilities State Certified Operator On-Site Compliance Testing Preventative & Predictive Maintenance Includes All Operating Expenses Labor Energy Permit Fees Compliance Testing Taxes Insurance Chemicals Discharge Fees Maintenance Operations Performed in Accordance to State Standards/Protocols

52 Update at Emory University

53 The WaterHub at Emory University

54 The WaterHub at Emory University Atlanta, GA 120M GPY Displaced 35% of Total Campus Demand 90% of Utility Water Demand 3 Chiller Plants/1 Power Plant Permitted for Use in Utility Operations, Irrigation and Toilet Flushing

55 Ecological Treatment Design - The WaterHub mimics natural methods of water treatment found in wetlands, tidal marshes, and rivers Integrated into the Built Environment with Small Footprint

56 GlassHouse (Upper Site) MBBR Plant Racks Textile Media Root Zone Aeration Bed GlassHouse Footprint Compact and Efficient at 2,200 ft 2

57 Outdoor System (Lower Site) Convergence of Multiple Ecological Treatment Technologies

58 Technology Overview

59 Emory - Aerial View: Under Construction Small Physical Footprint, Sited in the Middle of Campus

60 The WaterHub at Emory University - Capable of recycling up to 400,000 gallons-per-day First and Only Ecological, Decentralized Reuse System in the U.S.

61 Time Lapse of Project

62 Distribution System Tour Distribution Piping Covers 4,425 in Dense Campus Environment

63 EPA Administrator Tours WaterHub saving the school big on utility costs, a model for us all. Gina McCarthy Federal Validation on Treatment Approach and Financing Model

64 EPA Administrator Tours WaterHub The WaterHub will make it possible for Emory to save tens of millions of gallons of potable water every year. That is a real achievement. Gina McCarthy Federal Validation on Treatment Approach and Financing Model

65 EXTENDING THE LIFECYCLE OF WATER. Nature s Idea. Our Science. QUESTIONS? Bob Salvatelli Office: (804) Mobile: (973) Bob.Salvatelli@sustainablewater.com