This is an overview of the Wastewater Collection Division Asset Management Program including program roadmap, asset risk framework, technology, decision support system, on-going and upcoming efforts.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Wastewater Collection Division
Asset Management Program
October 8th, 2020
Presented by:
Shwan Fatah, P.E.
Projects and Assets Branch,
Wastewater Collection Division:

2. Wastewater Collection Division
Agenda
2
1. Overview
2. Program Roadmap
3. Asset Risk Framework
4. Technology
5. Decision Support System Overview
6. On-going and Upcoming Efforts
7. Question and Answers

3. Wastewater Collection Division
Fairfax County Overview
3
• Population: 1,166,965
• Area: 410 square miles
• Total Residential Units: 421,102
• High school Grads: 92%
• College Grads: 62%
• Median Household Income: $122,227

4. Wastewater Collection Division
Wastewater Collection System
4
• Separate Wastewater and Stormwater
Systems
• Over 3,300 Miles of sanitary sewer
• 100,000 structures
• 63 Pump Stations
• 57 Flow metering sites
• 11 Rain gauges
• 150 grinder pumps
• Pipe sizes range from 8-inch to 72-inch
• Discharge to 5 wastewater treatment plants

5. Wastewater Collection Division
What is Asset Management to Fairfax County?
5
The collection of activities that lead to the efficient and optimized cost of operation of all
assets and meets the desired level of service of the County’s Board of Supervisors and
system users. Activities include:
• Maintain accurate asset inventory
• Continual evaluation of assets and information collection
• Perform preventative maintenance to optimize operation and extend asset life
• Actively understand and manage system risk
• Perform capital improvement to reduce system risk and maintenance
• Data management
• Create opportunities for sharing info across business areas for efficiencies

6. Wastewater Collection Division
Wastewater Collection Overview
Asset Management Program (AMP)
Functions:
• Regulatory Compliance
• Asset Inspection
– WCD CCTV Crews
– Inspection via contract for gravity
& pump stations
• Asset Risk Modeling & Analysis
– Analyze risk of various assets
– Determine actions to be taken on
all assets
– Monitor system overall risk
• Recommend Assets for Rehab &
Renewal
• Recommend Asset Maintenance
Schedules/Optimization
• Technology and process improvements
• Energy Use and Efficiency Analysis
6
Wastewater
Collection Division
Gravity
Sewer Ops
Pump
Stations Ops
Projects &
Assets
AMP
Engineer PM Assistant PM CCTV
12 Operators
CIP Rehab Miss Utility
Organizational Chart

7. Wastewater Collection Division
Program Road Map
7
Standardized Linear
Inspection to
NASSCO
2015
Begin Implementation of DSS Re-org WCD-PAB and Asset
Management formed
• Linear DSS In Use
• Vertical AMP formed in
testing
• CMMS selection process
• Award contract for linear
inspections
• Operational dashboard and
KPI
2020
• Partner with STW in search
of new CMMS
• Kick-off Vertical Asset
Management
• Creek Crossing Program
initiated
• Siphons inspection program
initiated
20172016
Pilot linear system
and develop
program Risk
Framework
2018
2019
County’s Asset Management road map:
Next 5 yrs
• Vertical AMP go live
• Implement goal of 7-10 yr
inspection cycle for linear
• Creek Crossing Inspection
Program go-live
• IAM Training
• IAM Gap analysis
• Potential IAM Certification
• Trigger based Management
Plan
Pre-2015
Traditional collection
of info in CMMS,
CCTV, PM, Mostly
reactive CIP

8. Wastewater Collection Division
Approach to Risk – Linear System
• Started Linear system in 2015
• Various iteration was presented and tested for acceptance
• Minor changes since approval
• Reviewed annually
• Business Risk Exposure:
8
Consequence of Failure
Factors (COF):
 Social Impacts (Level of
Service)
 Public Health and
Environmental Impacts,
 Fiscal Impact (Cost).
Likelihood of Failure
Factors (LOF):
 Assets Characteristics,
 Assets Operation and
Maintenance History,
 Condition Assessment
Results from Inspections.

9. Wastewater Collection Division
9
CoF Categories and Weights
COF Description Weight
COF1
Hydraulic Capacity 8%
COF20
Transportation Impact 6%
COF5
Pipes Downstream of
Forcemain 3%
COF21
Urban Impacts 3%
COF8
Proximity to Surface
Waters 12%
COF9
Proximity to Wetlands 12%
COF22
Sanitary Sewer/Utility
Crossings 8%
COF14
Proximity to RPA Areas 8%
COF15
Pipe Depth - Cost 12%
COF16
Crossing Body of Water -
Cost
8%
COF17
Asbestos Cement Pipe
Material - Cost 4%
COF18
Pipe Size - Cost 8%
COF29
Soils - Cost 8%
LoF Categories and Weights
LOF Description Weight
LOF1 Pipe Age/RUL 7.5%
LOF2 Pipe Material 7.5%
LOF3 SSOs 9%
LOF4 Sewer Backups 6%
LOF5
PACP Structural Quick
Rating 28%
LOF6
Structural Pipe Rating
Index 21%
LOF7
PACP O&M Pipe
Rating Index 21%
Approach to Risk – Linear System

10. Wastewater Collection Division
InfoAsset Planner Risk Matrix Template
10
InfoAsset Planner
Risk Matrix Template
(Risk by Grading 1 to 5)

11. Wastewater Collection Division
Risk Model Matrix Output
11

12. Wastewater Collection Division
Approach to Risk – Vertical System
• Developed in 2019
• Current version is accepted
and in use
• Developed with asset
hierarchy
• Reviewed annually
• More layers compared to
linear assets
12

13. Wastewater Collection Division
Approach to Risk – Vertical System
13

14. Wastewater Collection Division
14
Use of Power BI to display Vertical System Info:
• CIP Prioritization Module
• Risk Assessment Module
• Energy Module
• Condition Assessment Module
Approach to Risk – Vertical System

15. Wastewater Collection Division
Technology
• Work Order System
– Historically in use
– Hansen  InforEAM  new system TBD
• Inspection Collection
– ESRI Collector (Manhole inspection)
– Survey123 (Vertical Assets)
– WinCAN (CCTV)
• Decision Support System
– Innovyze InfoAsset Planner (IAP) for linear system
– Other methods for vertical system
• Information Display
– PowerBI
• Upcoming:
– New CMMS system in procurement
– Artificial intelligence
15

16. One-time Import
Periodic Import
Direct Connection to Outside Data
User-Defined Data Connection
InfoAsset Planner Logical Architecture
Other
Infor EAM DB
InfoAsset Planner
File Geodatabase:
G:projectsdpwes_wcdInfoAssetPlannerP
roductionModelIAP_SewerModel_Product
ion.gdb
CCTV Media
Linked via IAP Media
Tables
InforEAM
(Legacy CCTV)
GISBackground GIS: Pointed
to .mxd file
Convert to tabular
format consumable by
IAP (if necessary)
Oracle Views:
1. D7I.WWM_IAP_BACKUP
2. D7I.WWM_IAP_CLEANING
3. D7I.WWM_IAP_REPAIR
4. D7I.WWM_IAP_SSO
WinCan
(CCTV)
License Server
s29ilmgc01
Access Floating
License
Facility Data (i.e,, sewerlines and
structures): Imported into
InfoAsset Planner
SQL (new) Views:
1. VW_WC_IAP_CONDITION
2. VW_WC_IAP_INSPECTION
3. VW_WC_IAP_MEDIA_CONDITION
4. VW_WC_IAP_MEDIA_INSPECTION
Pics:
s233018EVIData$ProdVXPR
ODPictureSec
Videos:
s233018EVIData$ProdVXPR
ODVideoSec

17. Wastewater Collection Division
Decision Support System Tool
17
• Complete analytics and asset planning tool
• Uses mathematical models to forecast pipe failures
• Co-locate all asset data
• Calculates COF and LOF, assesses risks, creates prioritized list of
assets.
• Decision tree(s) allow for user to build logic and defend our asset
rehabilitation plans that empowers WCD to:
– Make right decisions
– On the right assets
– At the right time
– For the right reason
• Ability to optimize day to day operations of assets and develop long
term planning.

18. Wastewater Collection Division
On-Going and Up-coming Efforts
18
• Risk and decision support model sensitivity testing
• Work order system selection & implementation
• Vertical asset hierarchy and risk framework
• Creek bed crossing pilot
• Utility Management Plan
• AMP ISO55001 Gap Analysis
• Key performance indicators

19. Wastewater Collection Division
19
Questions and Discussion.
Contact Info:
Shwan Fatah
Projects & Assets Branch Chief
Fairfax County DPWES – Wastewater Collection Division
Shwan.fatah@fairfaxcounty.gov
703-239-8435