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HOUSTON WATER & WEATHER
YVONNE W FORREST
DIRECTOR HOUSTON WATER
HOUSTON PUBLIC WORKS
FEBRUARY 28, 2019
TABLE OF
CONTENTS
HOUSTON WATER SYSTEM
WEATHER EXTREMES EXPERENCED
UTILITY RESPONSE
LESSONS LEARNED
HOUSTON WATER
3 SURFACE
WATER
PLANTS
100
GROUND
WATER
WELLS
7,144 MILES
PRESSURE
MAINS
7 PUBLIC
WATER
SYSTEMS
PLANNING
39 WWTP
384 LIFT
STATIONS
6,195 MILES
GRAVITY &
FORCE
MAINS
127,827
MANHOLES
WASTEWATER
SYSTEM
DRINKING
WATER
SYSTEM
OPERATIONS
AND
PROGRAM
SUPPORT
COMPLIANCE
ANNUAL
BUDGET
$ 387M O&M
$ 375M CIP
1600 FTE
WEATHER EVENTS
• 2008 HURRICANE IKE – CAT 2, 110 MPH MAX SUSTAINED WINDS
• 2011 DROUGHT OF RECORD ~45 WEEKS, 95% OF TX IN DROUGHT
• 2015 MEMORIAL DAY FLOOD, 12” RAIN IN 10 HOURS
• 2016 TAX DAY FLOOD, 17” RAIN IN 14 HOURS
• 2016 MEMORIAL DAY FLOOD, BEGAN BUILDING AN ARK
• 2017 HURRICANE HARVEY, 36-48” RAIN IN HOUSTON METRO
SINCE HARVEY
 LEAK ON 102” RAW WATER LINE
 LEAK ON 66” TREATED WATER LINE
 LEAK ON 54” TREATED WATER LINE
 LEAK ON 48’ TREATED WATER LINE
 HUNDREDS OF LEAKS IN DISTRIBUTION SYSTEM
 RAW WATER QUALITY HAS CHANGED
Water Conservation GPCD 5-Year and 10-Year Targets and Goals
Source: TWDB Website
UTILITY PERFORMANCE
2008 - 2018
 CITY OF HOUSTON FISCAL YEAR
JULY 1 – JUNE 30
 POPULATION INCREASE ~273,000
OVER 10 YEARS
 2010 HGSD ZONE 3 TARGET OF
30% SURFACE WATER
FY Total GPCD
Residential
GPCD
MGD
Unaccounted
Water (%)
2008 134 373 12.6
2009 149 67 382 12.7
2010 166 70 402 16.2
2011 143 72 446 16.5
2012 207 66 483 18.6
2013 208 65 447 14.9
2014 130 61 455 15.5
2015 126 60 429 14.4
2016 130 60 445 13.7
2017 129 62 458 13.3
2018 461 16.1
FOCUS FORWARD
 REDUCE NON REVENUE WATER
 ASSET MANAGEMENT
 RESILIANCE
QUESTIONS ?
YVONNE.FORREST@HOUSTONTX.GOV

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Houston Water Future & Water Conservation’s Role

  • 1. HOUSTON WATER & WEATHER YVONNE W FORREST DIRECTOR HOUSTON WATER HOUSTON PUBLIC WORKS FEBRUARY 28, 2019
  • 2. TABLE OF CONTENTS HOUSTON WATER SYSTEM WEATHER EXTREMES EXPERENCED UTILITY RESPONSE LESSONS LEARNED
  • 3.
  • 4. HOUSTON WATER 3 SURFACE WATER PLANTS 100 GROUND WATER WELLS 7,144 MILES PRESSURE MAINS 7 PUBLIC WATER SYSTEMS PLANNING 39 WWTP 384 LIFT STATIONS 6,195 MILES GRAVITY & FORCE MAINS 127,827 MANHOLES WASTEWATER SYSTEM DRINKING WATER SYSTEM OPERATIONS AND PROGRAM SUPPORT COMPLIANCE ANNUAL BUDGET $ 387M O&M $ 375M CIP 1600 FTE
  • 5. WEATHER EVENTS • 2008 HURRICANE IKE – CAT 2, 110 MPH MAX SUSTAINED WINDS • 2011 DROUGHT OF RECORD ~45 WEEKS, 95% OF TX IN DROUGHT • 2015 MEMORIAL DAY FLOOD, 12” RAIN IN 10 HOURS • 2016 TAX DAY FLOOD, 17” RAIN IN 14 HOURS • 2016 MEMORIAL DAY FLOOD, BEGAN BUILDING AN ARK • 2017 HURRICANE HARVEY, 36-48” RAIN IN HOUSTON METRO
  • 6.
  • 7. SINCE HARVEY  LEAK ON 102” RAW WATER LINE  LEAK ON 66” TREATED WATER LINE  LEAK ON 54” TREATED WATER LINE  LEAK ON 48’ TREATED WATER LINE  HUNDREDS OF LEAKS IN DISTRIBUTION SYSTEM  RAW WATER QUALITY HAS CHANGED
  • 8. Water Conservation GPCD 5-Year and 10-Year Targets and Goals Source: TWDB Website
  • 9. UTILITY PERFORMANCE 2008 - 2018  CITY OF HOUSTON FISCAL YEAR JULY 1 – JUNE 30  POPULATION INCREASE ~273,000 OVER 10 YEARS  2010 HGSD ZONE 3 TARGET OF 30% SURFACE WATER FY Total GPCD Residential GPCD MGD Unaccounted Water (%) 2008 134 373 12.6 2009 149 67 382 12.7 2010 166 70 402 16.2 2011 143 72 446 16.5 2012 207 66 483 18.6 2013 208 65 447 14.9 2014 130 61 455 15.5 2015 126 60 429 14.4 2016 130 60 445 13.7 2017 129 62 458 13.3 2018 461 16.1
  • 10. FOCUS FORWARD  REDUCE NON REVENUE WATER  ASSET MANAGEMENT  RESILIANCE

Notas do Editor

  1. Drinking water system capacity of 862 mgd
  2. Hurricane Ike occurred in September 2008. Preparations included having tiered staffing assignments. Response included legislation requiring generators at all water production facilities. Drought of record stressed our water distribution and productions system. Beginning of focused asset management program. May 27, 2015 event produced nearly 11 inches of rain and caused flash flooding. Began building flood wall and raising electronics as facilities near bayous. April 18, 2016 almost 17 inches of rain caused additional flash flooding. Repairs from 2015 were not completed. May 28, 2016 looking for an ark!
  3. First you must know what is in your system and where it is at. Upload to the cloud and download to a flash drive. When receiving offers of assistance be as specific a possible about your needs. Take care of your people first and foremost. They will take care of your customers.. Recovery takes time and you can’t go back to business as usual. Your system may not be configured the same when it is all said and done.