20 ways to reduce your building's water footprint

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  • 1. 20 Ways to Reduce your Building’s Water FootprintA Providence St. Peter Hospital Case Study November 18, 2011 Geoffrey Glass Troy Aichele
  • 2. ObjectivesLearn 20 strategies to conserve water andreduce water related energy consumptionfrom 10 years of experience fromProvidence St. Peter HospitalLearn general payback/return on waterefficiency investments performedLearn how to translate these savings atother healthcare facilities
  • 3. Cost of Water and Sewer / 100 Gallons (2009 Case Study)Olympia, WA: $1.00Water and Sewer bill: $230,725Olympia, WA: $1.00San Diego, CA: $1.38Boston, MA: $1.05El Paso, TX: $0.60Omaha, NE: $0.53Geneva, Switzerland: $1.95Glasgow, UK: $2.86Las Vegas, NV: $0.80Source: “The World’s Water 2008-2009” by Peter H. Gleick
  • 4. Cost of Water and Sewer / 100 Gallons (2009 Case Study)Olympia, WA: $1.00Water and Sewer bill: $230,725Olympia, WA: $1.00San Diego, CA: $1.38Boston, MA: $1.05 2012 DataEl Paso, TX: $0.60 Providence St. Peter Hospital (Olympia, WA): $1.22Omaha, NE: $0.53 2010-11 Water/Sewer Bill: $252,974Geneva, Switzerland: $1.95Glasgow, UK: $2.86 Providence Centralia Hospital (Centralia, WA): $1.40Las Vegas, NV: $0.80 2010-11 Water/Sewer Bill: $179,376Source: “The World’s Water 2008-2009” by Peter H. Gleick
  • 5. Utility Rate Trends… Utility Rate Trends Estimated 10%$9.00 10% increase for 2009$8.00$7.00$6.00$5.00$4.00$3.00$2.00 Peak$1.00 Water Water $/CCF Sewer Waste $- $/CCF 2002 2003 2004 2005 2006 2007 2008 2009 Year
  • 6. Utility Rate Trend Impacts
  • 7. U.S. Water Footprint(per person/per day): 70-100 GPD
  • 8. 18
  • 9. Increase in Waste Water Treatment Capacities (Brightwater) Cost: $1.84 Billion
  • 10. Drought / OveruseThe U.S. EPA reports at least 36 states are anticipating local,regional or statewide water shortages by 2013—even under non-drought conditions
  • 11. New Water Sources: Drilling New Wells
  • 12. New Water Sources:Reclaimed Purple Piping Systems
  • 13. New Water Sources: Desalination
  • 14. Sewer mining is the process of tapping into a sewer (either beforeor after the sewage treatment plant) and extracting sewage, whichis then treated and used as recycled water. Some sewer miningby-products may be acceptable for return to the sewerage system.Recycled water is treated so it’s safe to use. Recycled waterproduced from a sewer mining operation is commonly used toirrigate sports fields, parks and golf courses. It can also be used insome commercial buildings and industrial sites. New Water Sources:Sewer mining reduces the stress on waterways by capturing some Sewer Miningof the nutrients that would otherwise be discharged from sewagetreatment plants. The demand for drinking water can besignificantly reduced, by replacing it with recycled water madeavailable through sewer mining processes.
  • 15. 340 Licensed BedAcute Care Facility750,000 SF Total FloorSpace2300 Employees723 Fixture upgradeswere performed in thefirst 3 months of 2009
  • 16. Providence St. Peter Hospital Water Consumption 2008-2009 Water consumption in 2009 was 3,391,000 gallons less than in 2008Meanwhile….. Patient census increased 4.2% in 2009
  • 17. Providence St. Peter Hospital Water and Sewer Usage (1998-2009)PSPH has reduced theirwater consumption oravoided water use 59%(over 31 Million gallonsconserved) Campus grew 17% Patient Days have increased 22% within last 5 yearsWater and Sewer CostSavings: $139,539/ yearTotal Accumulated 11-YearSavings = $1,534,933
  • 18. 2008/09 Water ConsumptionComparison (Per 1000 Gallons) Month 2009 2008 ChangeJanuary 2,278 2,712 -16.00%February 2,244 2,470 -9.15% March 2,431 2,691 -9.66% April 2,248 2,672 -15.85% May 2,688 3,094 -13.14% June 2,874 3,272 -12.16%Totals: 14,766 16,914 -12.70%
  • 19. 2008/09 Water ConsumptionComparison (Per 1000 Gallons) Month 2009 2008 Change July 3,227 3,610 -10.6% August 3,181 3,480 -8.59%September 2,814 3,058 -7.97% October 2,517 2,599 -3.16%November 2,256 2,400 -6.02%December 2,276 2,421 -5.96 % Totals: 16,321 17,568 -7.1%
  • 20. 1998 – 2009 Water Savings (Per 1000 Gallons) Years Start End Change1998 – 2000 62,203 53,652 -13.7%2000 – 2002 53,652 47,109 -12.1%2002 – 2004 47,109 39,098 -17.0%2004 – 2006 39,098 33,329 -14.8%2006 – 2008 33,329 34,498 +3.50%2008 – 2009 34,498 31,034 -10.0% Totals: 269,889 238,720 -11.5%
  • 21. 21st Century Water Auditor Perform Facility Water Audit
  • 22. Benchmarking 120 100 80Gallons 60 Gallons Used / Square Foot / Year 40 20 0 0 500,000 1,000,000 1,500,000 2,000,000 Hospital Size (Square Feet)
  • 23. Analyze Facility for Leaks
  • 24. Analyze Facility for Leaks
  • 25. Water-Cooled Ice-Makers,Air-Conditioning and Refrigeration EquipmentApproximate Cost: $3,680Approximate Water/SewerSavings: 900 GPDPayback Period: 1.1 Years
  • 26. Vacuum Sterilizers Retrofit Four existing vacuum sterilizers. Removed orifice venturiand replaced with electric vacuum pumps and piped condensate to receiver and pumped back to boiler plant Cost: $30,232 Water/Sewer Savings: 4,320 GPD Payback Period: 1.9 Years
  • 27. Medical Instrument Washers (Night Setback)
  • 28. 1.1/1.6 GPF Dual-Flush Flushometer Retrofit KitsCost: $111Water/Sewer Savings: 6.4 GPDPayback Period: 4.75 Years
  • 29. Pint UrinalsCost: $1,330Water/Sewer Savings: 27.4 GPDPayback Period: 13.50 Years
  • 30. Dual-Flush Flushometers Cost: $644 (Including WC) Water/Sewer Savings: 26.8 GPD Payback Period: 6.78 Years
  • 31. 1.28 GPF Water Closets
  • 32. High Efficiency Shower HeadsCost: $78Water/Sewer Savings: 10 GPDPayback Period: 2.14 Years
  • 33. Faucets – Flow ControlCost: $65Water/Sewer Savings: 4.0 GPDPayback Period: 4.45 Years
  • 34. Sensor Activated Sensor Activated Public Faucets Public Water Closets
  • 35. Maintenance ProblemsNone!
  • 36. User Negative FeedbackNone!
  • 37. Irrigation (Xeriscaping) I Limit lawns to high exposure areas Plant native landscaping material
  • 38. Irrigation (Xeriscaping) II
  • 39. Green Cleaning (Microfiber Mop) Cost: $20 Water/Sewer Savings: 20 to 1 Gallons per use: 1 Payback Period: Immediate
  • 40. Sustainability CoordinatorEvaluate staff water wasting habits in high use areas ofSterile Processing, Dialysis, Food Services, and Environmental Services
  • 41. Deduct Meters (Cooling Towers and Irrigation Systems
  • 42. Increase Cooling Tower and Boiler Cycles of Concentration Work closely with your water treatment advisor to minimizemake-up water to these systems
  • 43. Kitchen EquipmentCost: $120,000Water/Sewer Savings: 1,800 GPDPayback Period (Water and SewerOnly): 18.26 Years
  • 44. Kitchen Equipment
  • 45. Medical Equipment (Vacuum Pumps)Specify waterless vacuum pumps (such as the Claw) or water recycling systems for vacuum pump cooling Approximate Cost: $40,000 Approximate Water/Sewer Savings: 2,880 GPD Approximate Payback Period: 3.80 Years
  • 46. Medical Equipment (Air Compressors)Approximate Cost:$40,000ApproximateWater/SewerSavings: 2,160GPDApproximatePayback Period:4.97 Years
  • 47. Medical EquipmentWaste Anesthesia Gas (WAG) Pumps Approximate Cost: $30,000 Approximate Water/Sewer Savings: 1,440 GPD Payback Period: 5.71 Years
  • 48. Other Opportunities for Water Conservation • Rainwater Harvesting • Sub-Metering • Dialysis Reject Water • Laundry Water Reuse • Air Handling Unit Condensate Recovery • New Products
  • 49. LessonsLearned
  • 50. Additional Stickers
  • 51. Post-InstallationFlushometer Adjustments
  • 52. Water
  • 53. Lowering GPF without changing bowl
  • 54. Fixture Footprintsare not all the same
  • 55. System Shut-downs vs. Freezing
  • 56. Beta-Testing
  • 57. Problematic Existing Conditions
  • 58. Aerators vs. Flow Control
  • 59. Straying from Water Audit Recommendations
  • 60. Payback Thresholds: OwnerFurnished Fixtures / Equipment
  • 61. Buyer Beware: Small Water Spots = More Maintenance
  • 62. Dual-Flush Tank-Type Retrofit Kits
  • 63. Putting Water EfficiencyAhead of User or Building needs
  • 64. Additional References • “Water Use and Conservation” by Amy Vickers • “Dry Run – Preventing the Next Urban Water Crisis” by Jerry Yudelson • “Every Drop for Sale” by Jeffrey Rothfeder • “The World’s Water….” Bi-Annual Series 1998 – Present by Peter H. Gleick • “Globalization of Water” by Arjen Y. Hoekstra and Ashok K. Chapagain • www.waterefficiency.net • www.watersmartinnovations.com161
  • 65. @WaterAuditor …..or
  • 66. • “Providence Health & Services has two patients, the medical patient and earth. To heal one without the other will not last”.  Janine Benyus, Author, Biomimicry-Innovation Inspired by Nature in conversation with Richard Beam, Director of Energy Management Services for Providence at the 2005 Inland NW Sustainability Conference, Boise, ID.