Durham – Where Great Things Happen

City of DurhamDepartment of

Water Management

Water Efficiency and Conservation

NCAWWA Sustainability Seminar

September 20, 2017

Durham – Where Great Things Happen durhamnc.gov

Mission:Provide cost effective water and wastewater services that meet

customers’ expectations and all regulatory requirements

About Water Management

Durham – Where Great Things Happen durhamnc.gov

Water Efficiency and Conservation

Broad Overview

• Customer focused programming

• Internal support

• Voluntary efficiency focus

• Mandatory conservation enforcement

Durham – Where Great Things Happen durhamnc.gov

1981 19941981 1983 1985 1987 1989 1991 1993

Durham's

original Conservation Ordinance

adopted

Water utility

bond referendum

Durham petitions

NC Building Code Council for more efficient plumbing

codes

Water utility

bond referendum

Conservation program

initiated

Water efficient fixture

requirements adopted

Program History1981 - 1994

Durham – Where Great Things Happen durhamnc.gov

1995 20101995 1997 1999 2001 2003 2005 2007 2009

Drought Drought

Third staff member

added

Second staff

member addedDrought

Toilet rebate

program started

Current Water

Efficiency Ordinance adopted

Program History1995 - 2010

Durham – Where Great Things Happen durhamnc.gov

Efficiency and Conservation

Conservation:

Efficiency:

Durham – Where Great Things Happen durhamnc.gov

Major Activities

Programs and Services

• Water Use Assessments

• Toilet rebate program

• Save Water Kits

• Rain barrels

• Water Efficiency Ordinance enforcement/response

Public Education

• Community events

• School presentations

• Development of educational programs/materials

• Water Efficiency Ordinance education (odd-even schedule)

Durham – Where Great Things Happen durhamnc.gov

Water Use Assessments

Educate customers about the wise use of water and to make their homes and businesses as water efficient as possible.

Durham – Where Great Things Happen durhamnc.gov

WaterSense Toilet Rebate

• Must use 1.28 gpf or less

• Must be WaterSense

• Must replace a 1.6 gpf or greater toilet

Durham – Where Great Things Happen durhamnc.gov

Save Water Kits

WaterSense Showerhead Fill Valve Diverter Dye Tablets

WaterSense Bathroom Aerator Kitchen Aerator

Durham – Where Great Things Happen durhamnc.gov

Rain Barrel Sales

The “Ivy” Rain Barrel

• 50 gallon capacity

• Price: $65.00 ea. plus tax

• Can be purchased online or by check at time of pick-up

Durham – Where Great Things Happen durhamnc.gov

Public EducationEvent Participation

Durham – Where Great Things Happen durhamnc.gov

Public EducationSchool and Youth Presentations

Durham – Where Great Things Happen durhamnc.gov

Public EducationAnnual Poster Contest

Durham – Where Great Things Happen durhamnc.gov

Public EducationMajor Campaigns

Durham – Where Great Things Happen durhamnc.gov

Public Education

Brochures, Guides, and Booklets

Durham – Where Great Things Happen durhamnc.gov

Public Education

Brochures, Guides, and Booklets

Durham – Where Great Things Happen durhamnc.gov

Public EducationCustom Videos

Durham – Where Great Things Happen durhamnc.gov

Conservation ProgramPublic Affairs

• News releases

• Advertising

• Website

Water Supply Status

Durham – Where Great Things Happen durhamnc.gov

EPA WaterSense® Partner

Durham – Where Great Things Happen durhamnc.gov

EPA WaterSense® Partner

Durham – Where Great Things Happen durhamnc.gov

We Won!

Durham – Where Great Things Happen durhamnc.gov

Regulatory Requirements:Water Efficiency Ordinance

• Part I – Year-Round Efficiency

• Part II – Four Stages of Water Restrictions

• Water Shortage Response Plan

Durham – Where Great Things Happen

Major Challenges:Water Supply & Drought Potential

Little River Reservoir

November 2007

0

10

20

30

40

50

60

70

80

90

1980 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030

Pe

ak

Da

ily W

ate

r D

em

an

d (

MG

D)

Year

Peak Day Demand (MGD) Ex/Fut Plant Cap 80% of Plant Cap Linear (Peak Day Demand (MGD))

Data does not include outside water sales

Treatment CapacityBrown and Williams WTPs

(52 MGD)

80% of Treatment Capacity

AfterBrown Expansion

(64 MGD)

After

Jordan Lake WTP

(80.5 MGD)

Peak Daily Water Supply & Demand ProjectionDepartment of Water Management - 2016

Durham – Where Great Things Happen durhamnc.gov

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

Mill

ion

s o

f Gal

llon

s Pe

r D

ay (M

GD

)Average Daily Finished Water Produced

2000 - 2016

Durham – Where Great Things Happen durhamnc.gov

Tiered Rates

Tier 1(0 – 2 ccf)

Tier 2(>2– 5 ccf)

Tier 3(>5-8 ccf)

Tier 4(>8 – 15 ccf)

Tier 5(>15 ccf)

Residential $1.93 $2.91 $3.19 $4.16 $6.23

Non-Residential $3.19

Irrigation $6.23

Durham – Where Great Things Happen durhamnc.gov

Trend – Percent of SFR Consumption by Tiers

Durham – Where Great Things Happen durhamnc.gov

Customer Breakdown

93%

6%

0%1%

Metered Connections

59%24%

6%

11%

Metered Average Use (MGD)

Residential

Commercial

Industrial

Institutional

Durham – Where Great Things Happen durhamnc.gov

Program Challenges

• Conservation is historically viewed as a temporary or standby solution

• Efficiency and conservation CAN be a long-term viable supply option

Durham – Where Great Things Happen

Questions?

www.DurhamSavesWater.org

@DurhamWater

facebook.com/durhamsaveswater

James LimWater Efficiency & Conservation Program Managerjames.lim@durhamnc.gov