The document outlines the management and performance of the Houston water and wastewater systems, detailing infrastructure, budget, and significant weather events impacting operations from 2008 to 2018. It highlights challenges faced during extreme weather conditions such as Hurricane Harvey and aims to improve effectiveness through reducing non-revenue water and enhancing asset management. The report concludes with a forward-looking approach to resilience and operational efficiency in response to increasing population and climate challenges.

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

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

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

11. QUESTIONS ?
YVONNE.FORREST@HOUSTONTX.GOV