Colorado Pilot Statewide Training Program AWWA...

Colorado – Pilot Statewide Training Program

AWWA M36 Water Audits & Loss Control

AUDIO INSTRUCTIONS:

Dial +1 (909) 259-0023

Access Code: 402-917-661

(all lines will be muted)

Introductory Webcast

August 19, 2015 – 1:00p MT

https://global.gotowebinar.com/register/104453395

1

Other Logistics:

1. Questions

a. If you’re watching the webcast, type your questions into the Q&A menu (upper left)

b. If you’re just listening on the phone, email your questions to [email protected]

2. The presentation

a. If you’re only joining by phone, follow along using the handouts. You can use the slide number (bottom right of each page) to know where we’re at in the presentation.

2

Today’s Webcast

1. Meet the Team

2. Background for Pilot Training Program

3. An Overview of the Program – what to expect

4. Foundations

5. Next Steps

. . . If you have questions, please feel free to type them in at any time. . .We will have a Q&A at the end of the webcast. . .

3

Program Hosts

4

Colorado Water Conservation Boardcwcb.state.co.us

Colorado Water Wise coloradowaterwise.org

RMS AWWA rmsawwa.org

Water Research Foundation waterrf.org

Meet the Trainers

5

Meet the Trainers

Will Jernigan, P.E.TeacherProgram [email protected]

Rachel [email protected]

Tory Wagoner, P.E.,P.L.S.Teacher877.557.8923

[email protected]

Steve Cavanaugh, [email protected]

6

Background for the

Pilot Training Program

7

• 2010: HB10-1051 passed

• Covered entities selling >2,000 Acre Feet per year

• Requirement for water use and conservation reporting

• Includes reporting on water loss

• February 1, 2012: CWCB adopts Guidelines and reports to legislature regarding the Guidelines.

• June 30, 2014 : Annual covered entity reporting for the previous calendar year began.

8

AWWA M36 Manual and

CWW Guidebook of Conservation Practices

9

2009 2010

Program Overview –

What to expect?

10

What you put in to the Program

• Program is being offered (nearly) free by the host agencies

• Today’s webcast

• Homework

• Workshop participation

• Give feedback for future training & technical assistance needs

• Apply workshop learning at your utility

11

• Introductory training on AWWA water balance and audit software

• Introductory training on data validation for the water audit

• Introductory training on water loss component analysis

12

What you get out of the Program

Functional

Focus Area

Audit Data

Collection

Short-term

loss control

Long-term

loss control

Target-setting

Benchmarkin

g

Identify Best Practices/ Best in

class - the ILI is very reliable as a

real loss performance indicator

for best in class service

For validity scores of 50 or below, the shaded blocks should not be focus areas until better data validity is achieved.

Preliminary Comparisons - can

begin to rely upon the

Infrastructure Leakage Index (ILI)

for performance comparisons for

real losses (see below table)

Performance Benchmarking - ILI

is meaningful in comparing real

loss standing

Continue incremental

improvements in short-term and

long-term loss control

interventions

Establish long-term apparent and

real loss reduction goals (+10

year horizon)

Establish mid-range (5 year

horizon) apparent and real loss

reduction goals

Evaluate and refine loss control

goals on a yearly basis

Begin to assess long-term needs

requiring large expenditure:

customer meter replacement,

water main replacement program,

new customer billing system or

Automatic Meter Reading (AMR)

system.

Begin to assemble economic

business case for long-term

needs based upon improved data

becoming available through the

water audit process.

Conduct detailed planning,

budgeting and launch of

comprehensive improvements for

metering, billing or infrastructure

management

Annual water audit is a reliable

gauge of year-to-year water

efficiency standing

Research information on leak

detection programs. Begin

flowcharting analysis of customer

billing system

Conduct loss assessment

investigations on a sample

portion of the system: customer

meter testing, leak survey,

unauthorized consumption, etc.

Establish ongoing mechanisms

for customer meter accuracy

testing, active leakage control

and infrastructure monitoring

Refine, enhance or expand

ongoing programs based upon

economic justification

Stay abreast of improvements in

metering, meter reading, billing,

leakage management and

infrastructure rehabilitation

Launch auditing and loss control

team; address production

metering deficiencies

Analyze business process for

customer metering and billing

functions and water supply

operations. Identify data gaps.

Establish/revise policies and

procedures for data collection

Refine data collection practices

and establish as routine business

process

Water Audit Data Validity Level / Score

Level I (0-25) Level II (26-50) Level III (51-70) Level IV (71-90) Level V (91-100)

Added Benefits for Attending the Workshop

• Connectivity with your peers – others who are working on the same thing you are!

• Lunch will be provided!

13

Pilot Training Program Overview

• Kickoff Webcast Today

• Pilot Training Workshop Circuit Sept 21st – 25th

14

Training Location Date Venue

1-Grand Junction Sept. 21, 2015 Ute Water Training Room, 21090 H 1/4 Rd., Grand Junction, CO 80505

2-Frisco Sept. 22, 2015 Frisco Community Center, 110 S. 3rd Ave., Frisco, CO 80443

3-Pueblo Sept 23, 2015 SECWCD Board Room, 31717 United Ave., Pueblo, CO 81001

4-Greeley Sept. 24, 2015 Island Grove Park (Pawnee Buttes Room), 421 N. 15th Ave, Greeley, CO 80631

5-Denver Sept. 25, 2015 AWWA Lynne Laskey Center Training Rm., 6666 W. Quincy Ave., Denver, CO 80235

http://coloradowaterwise.org/WaterLossAuditTraining

http://coloradowaterwise.org/event-1996121





9/21

9/22

9/23

9/24

9/25

Who Should Attend?

Representation from these key areas:

• Operations

• Finance

• Management

• Conservation

• Consultant

• For smaller utilities – one person may cover multiple areas

16

Water Auditing

Foundations

17

Basic Concepts

1. Utilize the Water Balance.

2. Separate Total Water Loss into Real and Apparent Loss.

3. Separate Real and Apparent Loss into their subcomponents.

4. Use metrics in units of Volume, Value & Validity.18

RealLosses

ApparentLosses

UnbilledAuthorized

Consumption

BilledAuthorized

Consumption

Non-Revenue

Water

RevenueWater

Leakage & Overflows at Storage

Billed Unmetered Consumption

Billed Metered Consumption

Billed Water Exported

Leakage on Service Lines(before the meter)

Leakage on Mains

Customer Metering & Data Inaccuracies

Unauthorized Consumption

Unbilled Unmetered Consumption

Unbilled Metered Consumption

WaterImported

OwnSources

TotalSystemInput

( allowfor

knownerrors )

WaterLosses

AuthorizedConsumption

WaterExported

WaterSupplied

AWWA Standard Water Balance

19

RealLosses

ApparentLosses

UnbilledAuthorized

Consumption

BilledAuthorized

Consumption

Non-Revenue

Water

RevenueWater






Leakage on Mains





WaterImported

OwnSources

TotalSystemInput

( allowfor

knownerrors )

WaterLosses


WaterExported

WaterSupplied


20

Non-Revenue Water

1. Water put into the system that does NOT return revenue to the Utility.

2. All Water Loss plus Unbilled Consumption.

3. “Unaccounted-for water” has been abandoned as an obsolete practice (2003).

21

RealLosses

ApparentLosses

UnbilledAuthorized

Consumption

BilledAuthorized

Consumption

Non-Revenue

Water

RevenueWater






Leakage on Mains





WaterImported

OwnSources

TotalSystemInput

( allowfor

knownerrors )

WaterLosses


WaterExported

WaterSupplied


22

RealLosses

ApparentLosses

UnbilledAuthorized

Consumption

Non-Revenue

Water

RealLosses

ApparentLosses

UnbilledAuthorized

Consumption

Non-Revenue

Water

Physical loss - leakage

Cost impacts at ‘wholesale’ rate

Tools for control include leakage and

pressure management

Non-physical / revenue loss - slow meters,

billing issues and theft

Cost impacts at ‘retail’ rate.

Tools for control include data management,

quality control policies/practices, & meter

testing & repair

Fire Dept Usage

Operational Flushing

Tools for control include efficient flushing

practices and awareness campaigns

AWWA Free Water Audit Software

Water Audit Report for:

Reporting Year:

All volumes to be entered as: MILLION GALLONS (US) PER YEAR

Master Meter Error Adjustments

WATER SUPPLIED Pcnt: Value:

Volume from own sources: 5 1,000.000 MG/Yr 1 MG/Yr

Water imported: MG/Yr MG/Yr

Water exported: 1 100.000 MG/Yr 9 MG/Yr

Enter negative % or value for under-registration

WATER SUPPLIED: 825.000 MG/Yr Enter positive % or value for over-registration.

AUTHORIZED CONSUMPTION

Billed metered: 8 700.000 MG/Yr

Billed unmetered: 9 50.000 MG/Yr

Unbilled metered: MG/Yr Pcnt: Value:

Unbilled unmetered: 9 10.313 MG/Yr 1.25% MG/Yr24061

AUTHORIZED CONSUMPTION: 760.313 MG/Yr

WATER LOSSES (Water Supplied - Authorized Consumption) 64.688 MG/Yr

Apparent Losses Pcnt: Value:

Unauthorized consumption: 10 3.000 MG/Yr 0.25% MG/Yr

Customer metering inaccuracies: 5 7.071 MG/Yr 1.00% MG/Yr

Systematic data handling errors: 4 5.000 MG/Yr 0.25% MG/Yr

Apparent Losses: 15.071 MG/Yr

Real Losses (Current Annual Real Losses or CARL)

Real Losses = Water Losses - Apparent Losses: 49.617 MG/Yr

WATER LOSSES: 64.688 MG/Yr

NON-REVENUE WATER

NON-REVENUE WATER: 75.000 MG/Yr

= Water Losses + Unbilled Metered + Unbilled Unmetered

SYSTEM DATA

Length of mains: 7 100.0 miles

Number of active AND inactive service connections: 6 1,000

Service connection density: 10 conn./mile main

Yes

Average length of customer service line: ft

Average operating pressure: 6 60.0 psi

COST DATA

Total annual cost of operating water system: 5 $1,000,000 $/Year

Customer retail unit cost (applied to Apparent Losses): 7 $3.50

Variable production cost (applied to Real Losses): 7 $3,000.00 $/Million gallons

WATER AUDIT DATA VALIDITY SCORE:

PRIORITY AREAS FOR ATTENTION:

1: Volume from own sources

2: Customer metering inaccuracies

3: Total annual cost of operating water system

Based on the information provided, audit accuracy can be improved by addressing the following components:

$/1000 gallons (US)

100.000

<----------- Enter grading in column 'E' and 'J' ---------->

Unauthorized consumption volume entered is greater than the recommended default value

5.000

*** YOUR SCORE IS: 60 out of 100 ***

A weighted scale for the components of consumption and water loss is included in the calculation of the Water Audit Data Validity Score

100.000

3.000

25.000

Average length of customer service line has been set to zero and a data grading score of 10 has been applied

Are customer meters typically located at the curbstop or property line?

AWWA Free Water Audit Software:

Reporting Worksheet

Default option selected for Unbilled unmetered - a grading of 5 is applied but not displayed

1.000

2013 1/2013 - 12/2013

Northern San Leandro Combined Water Sewer Storm Utility District (0007900)

?

?

?

?

?

? Click to access definition

?

?

?

?

?

?

Please enter data in the white cells below. Where available, metered values should be used; if metered values are unavailable please estimate a value. Indicate your confidence in the accuracy of the input data by grading each component (n/a or 1-10) using the drop-down list to the left of the input cell. Hover the mouse over the cell to obtain a description of the grades

?

?

?

?

?

?

(length of service line, beyond the property boundary, that is the responsibility of the utility)

Use buttons to selectpercentage of water

suppliedOR

value

?Click here:

for help using option buttons below

?

?

?

?

+

+ Click to add a comment

WAS v5.0

+

+

+

+

+

+

American Water Works Association.Copyright © 2014, All Rights Reserved.

?

?

?

+

+

+

+

+

+

+

+

+

+

+

+

+ Use Customer Retail Unit Cost to value real losses

?

To select the correct data grading for each input, determine the highest grade where the utility meets or exceeds all criteria for that grade and all grades below it.

Defaults provided

Free

awwa.org/waterlosscontrol

Industry Standard

(M36)

~10 Volume Inputs

~7 System Data Inputs

AWWA M36 Water Audit

Data Validity Scoring

AWWA developed a detailed grading matrix for Water Audit inputs

Based on the utility’s policies and practices for data collection, data management, data archiving, quality control procedures, and derivation of audit inputs

Provides a quantitative measure of the reliability

In computer science, data validation is the process of ensuring

that a program operates on clean, correct and useful data.

AWWA Free Water Audit Software© (V5.0)Data Grading for each Water Audit input (excerpt)

AWWA Free Water Audit Software© (V5.0)Guidance on Use of Water Audit Data, based on Level of

Data Validity

Functional

Focus Area

Audit Data

Collection

Short-term

loss control

Long-term

loss control

Target-setting

Benchmarkin

g

Identify Best Practices/ Best in

class - the ILI is very reliable as a

real loss performance indicator

for best in class service

For validity scores of 50 or below, the shaded blocks should not be focus areas until better data validity is achieved.

Preliminary Comparisons - can

begin to rely upon the

Infrastructure Leakage Index (ILI)

for performance comparisons for

real losses (see below table)

Performance Benchmarking - ILI

is meaningful in comparing real

loss standing

Continue incremental

improvements in short-term and

long-term loss control

interventions

Establish long-term apparent and

real loss reduction goals (+10

year horizon)

Establish mid-range (5 year

horizon) apparent and real loss

reduction goals

Evaluate and refine loss control

goals on a yearly basis

Begin to assess long-term needs

requiring large expenditure:

customer meter replacement,

water main replacement program,

new customer billing system or

Automatic Meter Reading (AMR)

system.

Begin to assemble economic

business case for long-term

needs based upon improved data

becoming available through the

water audit process.

Conduct detailed planning,

budgeting and launch of

comprehensive improvements for

metering, billing or infrastructure

management

Annual water audit is a reliable

gauge of year-to-year water

efficiency standing

Research information on leak

detection programs. Begin

flowcharting analysis of customer

billing system

Conduct loss assessment

investigations on a sample

portion of the system: customer

meter testing, leak survey,

unauthorized consumption, etc.

Establish ongoing mechanisms

for customer meter accuracy

testing, active leakage control

and infrastructure monitoring

Refine, enhance or expand

ongoing programs based upon

economic justification

Stay abreast of improvements in

metering, meter reading, billing,

leakage management and

infrastructure rehabilitation

Launch auditing and loss control

team; address production

metering deficiencies

Analyze business process for

customer metering and billing

functions and water supply

operations. Identify data gaps.

Establish/revise policies and

procedures for data collection

Refine data collection practices

and establish as routine business

process

Water Audit Data Validity Level / Score

Level I (0-25) Level II (26-50) Level III (51-70) Level IV (71-90) Level V (91-100)

18%

49%

33%

Finished Water Meter Flow Verification

Georgia Statewide Water Loss Technical Assistance –Finished Water Meter Testing

FAIL

UNTESTABLE

PASS

Georgia Statewide Water Loss Technical Assistance –Customer Meter Testing (CMT)

54%40%

6%

Customer Meter Testing

FAIL

UNTESTABLE

PASS

3-V

Validity

Value

Volume

MG per Year

Gal/connection/day

Leakage Index

$ per Year

Economic Loss Index

Water Audit Data Validity Score

95% Confidence Limits

Key Data Input Grades

Unaccounted

For Water

Unaccounted

For Water

Percentage

2003

Inconsistent use and interpretation

Unreliable indicator of

performance

Fails to segregate loss into its

components for effective

management

Water Loss or

NRW as % of

Supply

0

5

10

15

20

25

30

35

40

45

50

MG

DWater Loss as a Percentage of Supply is not an Indicator of Performance

Water Supplied (MGD)

Authorized Consumption (MGD)

Water Loss (MGD)

Development BoomGreat Recession,

Rate Increases,

Conservation

New Normal

10%

12%

14%

16%

18%

20%

22%

24%

26%

28%

0

5

10

15

20

25

30

35

40

45

50

MG

DWater Loss as a Percentage of Supply is not an Indicator of Performance

Water Supplied (MGD)

Authorized Consumption (MGD)

Water Loss (MGD)

Water Loss (Percent of Supply)

3-V

Validity

Value

Volume

MG per Year

Gal/connection/day

Leakage Index

$ per Year

Economic Loss Index

Water Audit Data Validity Score

95% Confidence Limits

Key Data Input Grades

Water Audit Data Validity Score: 74 out of 100

(Validated)

Economic Metrics Volume

95%

Confidence

Limits (+/-)

Value -

Water Only

Value -

With Sewer

95%

Confidence

Limits (+/-)

Non-Revenue Water 24,744 gal/conn/yr 14.2% 22$ 35$ $/conn/yr 16.6%

Non-Revenue Water 8,235 MG/yr 14.1% 7,166,110$ 11,568,137$ $/yr 16.6%

Target NRW Recovery (prel) 4,037 MG/yr 25.0% 4,707,445$ 7,985,285$ $/yr 25.0%

NRW Economic Index

(ratio of current vs optimum NRW cost) 2.9 3.2

Volume Value

Real Loss

Apparent Loss

Unbilled Consumption

NRW Components - By Volume (MG) - Level 2

Real Loss

Apparent Loss

Unbilled Consumption

NRW Components - By ValueLevel 2

Volume Value

Unbilled Unmetered

Unbilled Metered

Meter Inaccuracy

Theft

Data Handling

Unreported Leakage

Background Leakage

Reported Leakage

Real Loss Apparent Loss UnbilledConsumption

NRW Components - By Volume (MG)

Level 3

Unbilled Unmetered

Unbilled Metered

Meter Inaccuracy

Theft

Data Handling

Unreported Leakage

Background Leakage

Reported Leakage

Real Loss Apparent Loss UnbilledConsumption

NRW Components - By ValueLevel 3


Reporting Year: 2013 Show me the VOLUME of Non-Revenue Water

Data Validity Score: 60 Show me the COST of Non-Revenue Water


Dashboard

1/2013 - 12/2013


0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

Co

st $

Total Cost of NRW =$116,513

Unbilled metered (valued at Var. Prod. Cost)

Unbilled unmetered (valued at Var. Prod. Cost)

Unauth. consumption

Cust. metering inaccuracies

Syst. data handling errors

Real Losses (valued at Var. Prod. Cost)

WAS v5.0


Water Exported

Authorized Consumption

Water Losses

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Water Exported

Water Imported

Volume From OwnSources

Water Exported

Billed Auth. Cons.

Unbilled Auth. Cons.

Apparent Losses

Real Losses

Water Exported

Revenue Water

Non Revenue Water

The graphic below is a visual representation of the Water Balance with bar heights propotional to the

volume of the audit components

Water Exported

Water Supplied


Reporting Year: 2013 Show me the VOLUME of Non-Revenue Water

Data Validity Score: 60 Show me the COST of Non-Revenue Water


Dashboard

1/2013 - 12/2013


0

5

10

15

20

25

30

35

40

45

Volu

me

(MG

/Yr)

Total Volume of NRW = 75 MG/Yr

Unbilled metered (valued at Var. Prod. Cost)

Unbilled unmetered (valued at Var. Prod. Cost)

Unauth. consumption

Cust. metering inaccuracies

Syst. data handling errors

Real Losses (valued at Var. Prod. Cost)

WAS v5.0


Water Exported

Authorized Consumption

Water Losses

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Water Exported

Water Imported

Volume From OwnSources

Water Exported

Billed Auth. Cons.

Unbilled Auth. Cons.

Apparent Losses

Real Losses

Water Exported

Revenue Water

Non Revenue Water

The graphic below is a visual representation of the Water Balance with bar heights propotional to the

volume of the audit components

Water Exported

Water Supplied

Volume Value

Current8.2 BG

Economically Optimized

3.6 BG

NRW Volume (BG/year)

Current$7.3M


$2.3M

NRW Value ($/year)

$5 M4.6 BG

Volume Value

Current8.2 BG


3.6 BG

NRW Volume (BG/year)

Current(WATER)$7.3M


(WATER)$2.3M

NRW Value ($/year)

4.6 BG

$8.5 M

(SEWER)$4.5M

(SEWER)$1.1M

$11.6

M

$3.4

M

Leakage Component Analysis

Basic Concepts

1. Utilize the Water Balance.

2. Separate Total Water Loss into Real and Apparent Loss.

3. Separate Real and Apparent Loss into their subcomponents.

4. Use metrics in units of Volume, Value & Validity.45

Homework

46

Homework

47

Register for the Workshop!

coloradowaterwise.org/WaterLossAuditTraining

*then we won’t call and bug you*

Who? Management, Finance, Operations, Conservation

Homework

48

If you have already had experience with the AWWA M36 Water Audit Methodology:

• Bring Your Questions

Homework

49

If this will be your first experience with the AWWA M36 Water Audit Methodology:

• Download the AWWA Free Water Audit Software– www.awwa.org/waterlosscontrol

• Download the WRF Free Leakage Component Analysis Model– http://www.waterrf.org/resources/pages/PublicWebTools-

detail.aspx?ItemID=27

…or google “WRF 4372”, look for web tools link at bottom of WRF page

Homework

50

What to Bring?

1. People (don’t forget to register)

2. Laptop (one per group is fine)

3. Your Questions

4. Readiness to Participate

Questions?

51

Colorado – Pilot Statewide Training Program

AWWA M36 Water Audits & Loss Control

coloradowaterwise.org/WaterLossAuditTraining

52

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