utilizing flow monitoring and an sses to prepare a … · 2013. 7. 31. · sses to prepare a...
TRANSCRIPT
Fishbeck, Thompson, Carr & Huber, Inc.
Utilizing Flow Monitoring and an
SSES to Prepare a Comprehensive
Capital Improvement Program and
an Asset Management Program
June 25, 2013
Agenda
Background
Project Drivers/Need
S2 Grant Projects/Results
Asset Management Concepts
Next Steps/Lessons Learned
Background Information
Branch County
Exit 13 off I-69
City Information
Population – 11,000
Main employers
Asama
Alaris
Wal-Mart distribution center
Active drive-in theater
Airport
Coldwater Board of Public
Utilities
Responsible for water, sanitary sewer, and
electric
3.0-MGD WWTP
6.6-MGD WTP
71 miles of sanitary sewer
93 miles of water main
13 pump stations
47 employees
Coldwater Board of Public
Utilities
WWTP
Coldwater Board of Public
Utilities
WTP
Coldwater Board of Public
Utilities
Sanitary Pump Stations
City of Coldwater
67 employees
Responsible for streets and stormwater
57 miles of public roads
53 miles of storm sewer
6 miles of trails
City of Coldwater
Coldwater Board of Public
Utilities Goals
The Problem
Project identification by political and department whim
Maintenance identification by reactive measures
Subjective vs. quantitative decision making
The Justification
Improve decision making
Improve reliability of assets and customer deliverables
Improve forecasting, budgeting, and expenditures
Coldwater Board of Public
Utilities Goals
The Approach
Holistic integration of infrastructure assets
Engineering driven
Quantitative
The Challenge
Aligning priorities
Aligning budgets
Dynamic systems
System Background
System has historical infiltration issues with significant seasonal increase
Average daily flow exceeding WWTP capacity
Previous I/I projects did not address the issues
S2 Grant Project(s)
The Board applied for, and obtained, two S2
grants for $1 million
Grants covered:
GIS
Flow monitoring
Hydraulic modeling
SSES
SRF Project Plan Approach
Used a phased flow monitoring program to find
the subdistricts with excessive infiltration
Performed a comprehensive SSES in those
areas to locate infiltration sources
Identify SRF eligible projects; capacity issues
directly related to excessive infiltration
Flow Monitoring (Phase I)
Phase I Study Results
Primary issue is high
groundwater/permeable
soils
Phase I issue was
excessive infiltration
along Washington and
Sprague Streets
Phase 1 Construction
Phase 1 Results
Flows reduced by 20%
Estimated reduction of 300 gpm of I/I
Total removal estimated over 20 years is 3.1
billion gallons
Phase II
Despite large reduction in flows, still noticed a
significant rise in the spring
Only during high groundwater periods
Flow Monitoring (Phase II)
Phase II Results
Large drop in flows between two meters along
the main interceptor
SSES showed excessive infiltration along Morse
and Montgomery Streets
State Street Pump Station undersized and at the
end of its useful life.
Phase II Projects
CIPP Montgomery and Morse Street sewer
Replace State Street pump station
Scheduled for construction in 2014.
Other Issues Identified
SSES identified several deficiencies that were
not SRF eligible
Manholes, sewer mains, and pump stations
How do we document and address those
issues?
Asset Management Concepts
Inventory
Condition
assessment
Prioritize
Plan
Sewer Televised
Sewer Televised
Sewer Televised
TV Inspection Results
Manholes Inspected
Manhole Inspections
Pump Station Inspections
Manhole Inspection Results
Waterman Sanitary Sewer
Broken Sewer/Spot Repair
Manhole Lining (Phase I)
Manholes Lining (Phase II)
CIPP Lining (Phase I)
CIPP Lining (Phase II)
Asset Management Implemented
System Maps were updated using GIS
Condition assessment Completed and
Documented
Prioritized projects based on Risk
Plan Developed
Next Steps
Additional TV and manhole inspections
System Wide Comprehensive asset
management plan
Integrate WWTP into GIS
Why Asset Management?
Plan for future capital improvements
Identify problems before they become emergencies
Quantify systems
“Put first things first”
The future
Continuous reassessment
Continuous modeling
Integration of IT/OT and data applications
Fishbeck, Thompson, Carr & Huber, Inc.
Questions?