Infrastructure Management Solutions McMahon Associates · •MS4: Designed and used to collect or...

Infrastructure Management

Solutions

McMahon Associates

Infrastructure Management

Solutions

McMahon Associates

Stormwater and Sewer Data Management For Local Agencies

Brian Berdel & Simon Lewis, McMahon Associates.

MAGTUG. GIS Day at Rowan College at Burlington County. Nov 5, 2015

McMahon: Infrastructure Management SuiteMcMahon: Infrastructure Management Suite 2

Municipal Separate Storm Sewer Systems

(MS4)

• Clean Water Act: National Pollutant Discharge Elimination System (NPDES)

• Permits: Since 1999, require small agencies to obtain NPDES permit coverage for their stormwater discharges

• MS4: Designed and used to collect or convey stormwater (including storm drains, pipes, ditches, etc.)– Conveyance or system of conveyances that is owned by a

state, city, town, village, or other public entity, that discharges to waters of the U.S.

• Stormwater Management Program (SWMP): Each regulated MS4 is required to develop and implement to reduce the contamination of stormwater runoff and prohibit illicit discharges


New DEP Storm Sewer Regulations

for Municipalities

• Require:– An inventory of all assets

– Documented inspections (DEPS's MS4) of municipal separate storm sewer systems

– Maintenance record

– Generate and maintain all forms of documentation to prove the Asset Management inventory and practices are in place in a municipality

• This information can be recalled, printed and provided when audited, or as requested, such as in the Annual Report production


Stormwater: Challenges for Local

Agencies

• For many local agencies, storm water and sewerage only one small part of what they do

• Local agency characteristics– NEEDS:

• Meet permit requirements

• Integrate with other agency datasets and applications

• Legacy information needs to be passed on to succeeding data steward (there is a concern with the loss of information as managers are approaching retirement)

– LIMITED:• Staff

• Bandwidth

• Technical resources

– Data husbandry regime/skills

• Time to :

– Setup and learn technology

– Learn best practices

– Adopt and use technology


Domain / Application Needs

• A reliable asset inventory with standardized terminology?

• Data models?

• Asset labels?

• Stormwater Management Program (SMP)?

• Mobile field data collection crews?

• Access, report, and manage information related to stream channels, conduits, inlets, and outlets?

• Checks to ensure integrity?

• The completed inventory - a dynamic, constantly updated operational inventory?


Key Challenges

• For many smaller local agencies:– Simplify: Focus on parts of process most

critically involved (“Site awareness”, “review”)

– Available and Accessible: Data is there, when need

– Fit: Within local agency context

• For application developers/solution providers:– Model: Handle data models, technology –

but do not expose complexity

– Deliver: data facilely

– Integrate: Not stand-alone


GIS-based Data

Inventory

• Helps monitor existing storm water management practices

• Guides planning officials in:

– analyzing vulnerable areas

– budget planning for maintenance components and overall system planning

– retrofitting existing facilities, and

– identifying potential locations for implementing new storm water best management practices (BMPs)


GIS Inventories

• 3 major GIS storm water data

categories:

– Base Data (networks, facilities, etc.)

– Data on existing storm water

management practices, and

– Data on potential sites for implementing

new best management practices

(BMP’s)


GIS Base Data: may

include-

• Digital elevation model

• Triangulated irregular network

• Contour, or other high-quality elevation data orthophoto

• Watershed boundary

• Stream network, stream bank, natural waterbody or water reservoir,

• Water distribution network

• Also: land use, soil type, tree canopy density, impervious surface, forest fragmentation, and riparian buffer data, etc.


GIS Role

• Inventory: Many utilities have started actively conducting inventories and condition assessments of their water infrastructure assets:– valves, hydrants, meters and

– transmission and distribution mains

• Decision Support: Using GIS as a decision support system means providing critical information about the location and condition of water utility assets:– Local agencies recognize the value of increased system

knowledge

– Breaking away from reactionary maintenance and are instead taking a more proactive, holistic approach to addressing their aging water infrastructure.


Stormwater-Sewer GIS Strategic

Plan

• Need?

• Example: Passaic Valley Sewerage Commission

• NJDEP mandate for GIS1. Review existing system. Conduct visioning workshop and

process workflow

2. Perform GIS needs assessment

3. Develop GIS Strategic Implementation Plan

4. Executive Management Presentation Training

5. Specialty Consulting Services

6. Consultant Responsibility

• Questions from prior generation GIS SP:– Vendor independence

– Tie, relation to IT


Stormwater tools

• Water Utility Network Editing

• http://solutions.arcgis.com/utilities/water/help/network-editing/

– Map design for network editing

– Focused Geometric Network editing tools

– Tracing and reporting toolbar

– Data construction tools

– Automated attribute creation

http://solutions.arcgis.com/utilities/water/help/network-editing/


NASSCO PACP for Condition Rating


Potential Smart Moves for Local

Agencies

• Aim to save money, staff resources …

be efficient!

• Use GIS

– But, use within a common, standardized,

agency GIS and IT program

• Do as a regional (or cross-jurisdiction)

GIS:

– Data

– Technology

- Support, sharing effort


Two Current In-progress Case

Studies

• Hamilton Township, NJ

– Integrate within existing township

applications

• Allegheny County, PA

– Cross-township effort


Traisr

• Case studies use tool geared for local

agency use and implementation

– Single screen

– No local support required

– Delivers data with modest

interaction/training


Traisr Architecture


Asset/Inventory/Work

Flow

Mobile Data Collection

Excel Analysis and Reports

County GIS Data Resources

TRAISRReports

Hamilton Township, NJ

19


The Hamilton Township

Department of Water Pollution

Control (WPC)

• Context:- 92,000 population, 45 square mile service area

• Operates a regional wastewater treatment facility:– with a capacity of 16 million gallons per day

(MGD), and

– an average daily flow of 8.7 MGD.

• The Utility:– has been in operation for 77 years

– collection system containing 389 miles of sewer lines, and

– 39 pumping stations

• Stormwater Management Plan


Data Sources (true both case

studies)

• Sewer data particularly messy

• Data is owned by the municipality and is managed by the township engineer

• Data can often be from multiple sources, time periods, firms involved

• Source data: As-builts, collected survey points, field observation, and record drawings

• The lineage of the data is often not clear

• May have multiple firms working on it at once

• Need better data standards, data model, check-in and out, etc.


Hamilton - Stormwater

Goals

• Current efforts:– To evaluate watershed and stormwater management

issues

– Develop recommendations for improving and protecting water resources in the community.

• Community-wide evaluation of:– Water resource management needs and

– The development of priorities and recommendations for actions.

• Goals for this ongoing effort include:– Engaging the community in water resource protection

– Managing water quality

– Minimizing localized flooding

– Implementing Phase II stormwater controls

– Improving stormwater facility maintenance


Inventory 1: Sanitary

Sewer

• 7918 manholes

• 8320 pipes

– Can show flow direction

– Label manholes

• 84 Forced mains

• 54 units at Treatment plant (one main facility)

• 43 Pump stations

• 1 Sewer service area


Inventory 2:

Stormwater

• 12606 Catch basins

• 2226 Manholes

• 14294 Storm pipes

– Show flow direction

• 987 Miscellaneous (FES, outlet

structures, headwalls, etc.)


Field Data Collection


Sanitary Manholes 1


Sanitary Manholes 2 – 1/

backdrop


Treatment Plant


Correct Pipe Flow?


Add - Pump Stations & Forced

Mains


Township-wide


Interface Tool to do Within Pipe

Condition Analysis (Hamilton)

• Using granite software (Granite), and

• A TV truck

– with data synchronization to ArcGIS &

Traisr for Asset Condition / images / and

videos.


Work Orders

• Using integrated application (Traisr)

for Scheduled / Preventative and

Reactive Maintenance for all

stormwater assets as well as

inspections

• Benefits of an integrated

inventory/work order system

Allegheny County, PA

34


Shared Appplication’ware and

Support

• Combine technical resources and

application

• Benefits of shared resources

– These townships maybe relatively small,

but they are progressive


Allegheny County: 3 cross- Agency

Case Study

• Castle Shannon: pop. 8,500– Example small but pro-active

• Center Township: pop. 11,800– Runs Elkhorn plant sewer treatment

– Estimated 15 square miles of sanitary sewer system and approximately 4,642 residential and commercial sewer lateral

connections.

- Own testing lab

• Fox Chapel: pop. 5,400


Collected Stormwater Datasets

• Data sets for:– Open Channel

– Catch basin

– Stormwater sewer line

– Stormwater manhole

– Stormwater pond

– Trench box

– Curb

– Swale

– MS4 Watershed

– Outfall


Combined datasets

CTWP Center TownshipCSB Castle ShannonFCB Fox Chase Borough


Individual Stormwater

Line


Area Catch Basins


PA DEP Standardized

Reporting

• Number of Standard DEP sheets

1. Outfall data collection (next)

2. Annual MS4 progress (below)


Outfall: Data Collection &

Storage


Outfall: Reconnaissance Inventory:

1


Outfall: Reconnaissance

Inventory: 2


Tool to add Sewer

Laterals

• Vector Art Studio App Sketch tool will be used for CB and MH inspection reports.

• Laterals and additional features will be actively be drawn in Traisr, so that they can add information to them and have it available in the field such as CCTV images, reports, and video snippets


In field, data tablet use

Designed for use on tabletAdd on-property water features as assets

Used for sketching stormwater features on a property


Create Work Order in

fieldSave as JPGPerform document of certification work orderAttach Jpeg to work order

Additional /Alternative Approaches: Go Green

48


Green Stormwater Infrastructure:

Philadelphia example

Advantages:• Manages rainwater by

preventing runoff• Stormwater captured in Green

Infrastructure can easily evaporate and never have to be managed in traditional collection systems.

• Infiltration and evapotranspiration by plants

Stormwater Planter

Pervious Pavement

Green / Blue Roof

Existing Green Infrastructure

GIS & Suitability

1. Identify Input Factors1. Soil Conditions2. Steep Topography3. Designing around Utilities

2. Assign weights3. Build model / data conversion4. Run model


Conclusion 1: Status & Options

• Need to start by good inventory of existing facilities– Many datasets currently in “fixup mode”

• Demands for improvements exceed likely budgets for sewer and stormwater

• Case study of Camden – streets recently flood in storms, even where recent stormwater improvements

• “Greening our streets so stormwater some place to go”


Conclusion 2: Tools

• Traisr is and efficient, economical way to take information out of filing cabinets and placing it in the hands of the managers and field crew so that they can seamlessly collect, manage, and share data within their municipality and other agencies.– Streamline the documentation process from data collection

to reporting

– Data\reports are available can be accessed from anywhere limiting the need to return to the office to check on items and allowing progress to keep moving forward

– Viewing updates and progress in real time allows managers to better track reporting and updates municipality wide with ease

• GIS can offer tools to inventory and propose “green areas”

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