I/I Studies
Hydraulic Modeling
Design & Construction
Operation & Maintenance
cMOM Compliance
Master Planning
Pipedream©
Texas
PROJECT:
M134 Drainage Area
Sanitary Sewer System Evaluation
and Improvements
LOCATION:
Fort Worth,
Texas
SCHEDULE:
2004
PROJECT BACKGROUND:
The Sanitary Sewer Main 134 Drainage Area, Sanitary Sewer Evaluation and
Improvements Project, is part of the City's overall wastewater program to
eliminate sanitary sewer overflows (SSOs) in their wastewater system. The City
is undertaking this program in order to comply with the EPA's proposed CMOM
compliance regulations. Past investigations and maintenance information
identified numerous wet-weather SSO locations, potential inflow and infiltration
(I/I) areas and areas of infrastructure deterioration in several drainage
basins, including Main 134. The Main 134 Drainage Area is comprised of 196,500
feet of sanitary sewer that discharge to the Clear Fork interceptor sewer
system. The study area also includes the specialized Fort Worth Cultural
District.
The City retained Wade & Associates to conduct an SSES and I/I investigation in these basins to reduce I/I and prevent SSOs through cost-effective analysis, rehabilitation and improvements to the sanitary sewer system.
PROJECT SCOPE:
Services provided by Wade
include
smoke testing of 196,500 lf of sewers,
770 manhole inspections, building
inspections, dyed-water
testing, high-pressure pipeline cleaning and CCTV inspections.
A quantitative I/I analysis and cost-effectiveness analysis
for I/I removal and rehabilitation will be performed. Wade will also provide design and construction
administration of resulting sewer rehabilitation from this study.
As part of this contract, Wade is coordinating a Public Outreach Program to inform residents of the various phases of work completed in their areas. The program implements notification and information distribution through neighborhood meetings, Fort Worth Water Department publications and web site, Wade & Associates Project web site (wadeprojects.com), the Star Telegram "City Page, " and resident door hanger notifications.
PROJECT:
Main 286 and CDSL32-T Drainage Basins
SSES & Improvements Project
and CMOM Compliance
LOCATION:
Fort Worth,
Texas
SCHEDULE: 2002
- 2003
PROJECT BACKGROUND:
The Sanitary Sewer Main 286 and
CDSL32-T Drainage Basins project is part of the City's wastewater program to
eliminate sanitary sewer overflows (SSOs) in order to comply with the EPA's
proposed CMOM compliance regulations. Past investigations and maintenance
information identified numerous wet-weather SSO locations, potential inflow and
infiltration (I/I) areas and areas of infrastructure deterioration in these
drainage basins. The Main 286/CDSL32-T Drainage Area is comprised of
365,000 feet of pipe, from 6" to 48" in diameter. The
City retained Wade & Associates to conduct an SSES and I/I investigation in these basins.
PROJECT SCOPE:
Services provided by Wade
include a 60-day flow and rainfall monitoring program,
smoke testing of 325,000 lf of sewers,
1,070 manhole inspections,
visual pipe inspections, dyed-water
testing, high-pressure pipeline cleaning and CCTV inspections.
A quantitative I/I analysis and cost-effectiveness analysis
for I/I removal and rehabilitation will be performed. Wade will prepare a
computerized hydraulic model of the system with scenarios depicting various
future growth models in concurrence with relief and rehabilitation cost
analysis. A final report will be submitted in 2003.
Wade will also provide design and construction
administration of resulting sewer rehabilitation from this study.
Construction is scheduled for 2003.
As part of this contract, Wade is also conducting flow monitoring services and hydraulic modeling as part of a long-term master plan for the Clear Fork Watershed, one of the City’s largest service areas. Wade is providing design services of approximately 13,700 lf of previously recommended rehabilitation and improvements also in the Clear Fork Watershed.
Other phases of the contract include flow monitoring and pre-design of permanent wastewater metering stations for the City of Benbrook. The meters will continuously monitor wastewater discharge from Benbrook into the Fort Worth wastewater collection system.
Wade will also manage a city-wide (90,000 lf), large-diameter sewer cleaning and CCTV inspection program for the City of Fort Worth.
PROJECT:
Inflow and Infiltration (I/I)
Study
LOCATION:
White Settlement,
Texas
SCHEDULE: 2002-2003
PROJECT
SCOPE:
Wade & Associates provided wastewater flow
monitoring services to the City of White Settlement as part of a long-term I/I
reduction program. The project included the installation, service, and analysis
of wastewater flow from 14 key locations in the City’s sanitary sewer system.
Wade’s report on their findings was submitted to Teague, Nall & Perkins, the
City’s prime consultant. As part of the continuation of the City’s I/I program,
Wade has been authorized to begin a smoke testing program of all priority basins
exhibiting high levels of I/I. Smoke testing will include approximately 150,000
feet of sanitary sewer. The work is expected to be completed in early 2003.
PROJECT:
Flow Monitoring
Project
LOCATION:
Keller,
Texas
SCHEDULE: 2002
PROJECT
SCOPE:
Wade provided flow monitoring services for the City of Keller to help determine
impacts to the sanitary sewer system
made by the addition of a new elementary school. The scope included fill and draw testing of an existing lift station and short-term flow monitoring and flow data analysis.
PROJECT: Govalle Project No. 1
Sanitary Sewer Evaluation Study
LOCATION: Austin,
Texas
SCHEDULE: 2001 - 2002
PROJECT BACKGROUND:
The Govalle 1 SSES study area contains approximately 424,829 linear feet of sanitary
sewer line including pipe ranging from 6" to 42" in diameter and approximately
1647 manholes and cleanouts. The goal of this project is to identify
Inflow/Infiltration (I/I) in the system to eliminate overflows brought about by wet
weather events. Basins to be studied include West Bouldin, East Bouldin, and Barton
Creek.
PROJECT SCOPE:
Wade & Associates is conducting a Sanitary Sewer Evaluation Study to identify major
sources of I/I and recommend a rehabilitation/replacement program. The first phase
of the study will begin with flow monitoring and rainfall monitoring for a 60 day
period. Electronic flow meters and rain gauges will be used to record data to
determine dry and wet weather peaks and inflow rates.
Wade will also conduct manhole and visual pipe inspections, smoke testing of 424,829 lf of pipe, and dyed-water testing (of suspect I/I sources). Wade will conduct a public awareness/notification program prior to smoke testing. Cleaning and CCTV pipe inspection will be performed on selected lines. Flow data will be analyzed to rank I/I severity.
Flow data and existing data from the City will be used to create a hydraulic model of the system. A hydraulic analysis will be submitted to the City with recommendations for hydraulic capacity, rehabilitation and new relief sewer options including cost analysis. GPS mapping of the system is also included in the study.
PROJECT: Area Y Inflow/Infiltration
Study (SSES)
(Sub-Basins 16 and 17)
LOCATION: Arlington, Texas
SCHEDULE: February 1999 - February 2000
PROJECT BACKGROUND:
The City of Arlington retained Wade & Associates to conduct a comprehensive
Inflow/Inflitration (I/I) investigation. The purpose of this study was to identify (I/I)
sources, bottlenecks, structural defects, and other system conditions so recommendations
could be developed for the elimination of wet and dry weather overflows, and for the
overall reduction of I/I system-wide. The study area contained an estimated 890 manholes,
and 252,000 linear feet of sanitary sewer.
PROJECT SCOPE:
Wade & Associates provided services that included flow monitoring, smoke testing,
manhole inspections, dye-water testing, CCTV inspections and hydraulic modeling using
HydroWorks© and Pipedream©. Study results have been integrated into ArcView© and
Arlington’s GIS system. The study recommended system rehabilitation improvements
(pipeline and manholes) in the amount of approximately $1,650,000 and $3,800,000 in relief
mains. The final report and product deliverables have been provided to the city.
PROJECT: Basin P2 Williamson
Creek
Sanitary Sewer Evaluation Study
LOCATION: Austin, Texas
SCHEDULE: 2000 - 2001
PROJECT BACKGROUND:
The Basin P2 Williamson Creek Drainage Area contains approximately 275,000 linear feet
of sanitary sewer line including pipe ranging from 6" to 42" in diameter and
approximately 939 manholes and cleanouts. The goal of this project is to identify
Inflow/Infiltration (I/I) in the system to eliminate overflows brought about by wet
weather events.
PROJECT SCOPE:
Wade & Associates is conducting a Sanitary Sewer Evaluation Study to identify major
sources of I/I and recommend a rehabilitation/replacement program. The first phase
of the study will begin with flow monitoring and rainfall monitoring for a 60 day period
during the region's wet weather season. Electronic flow meters and rain gauges will
be used to record data to determine dry and wet weather peaks and inflow
rates.
Other field investigations include manhole inspections to record structural integrity and visual pipe inspections to document defects and report pipe lines needing cleaning. Smoke testing of 275,000 lf of pipe will be conducted to further identify I/I sources. Wade will conduct a public awareness/notification program prior to smoke testing. Dye-water flooding will be used to verify suspect I/I sources in the system. Cleaning and CCTV pipe inspection will be performed on selected lines.
Wet and dry weather flow data will be analyzed to rank I/I severity. Flow data and existing data from the City will be used to create a hydraulic model of the system. A hydraulic analysis will be submitted to the City with recommendations for hydraulic capacity, rehabilitation and new relief sewer options including cost analysis. GPS mapping of the system is included.
PROJECT: Flow
Monitoring and I/I Analysis
LOCATION: Burleson, Texas
SCHEDULE: February 1999 - July 1999
PROJECT SCOPE:
The City of Burleson selected Wade & Associates to conduct a comprehensive flow
monitoring and I/I study of the City's wastewater collection system as an initial phase of
an I/I reduction program. Wade & Associates installed ten continuous recording flow
meters and five rain gauges. Wade then collected, reviewed, and analyzed all flow
monitoring and rainfall data. Wet-weather and dry-weather flows were determined as well as
Qvsi relationships and design flows for up to 25-year storm events. The final report
included prioritizing sub-basins, findings and conclusions and recommendations for I/I
management programs.
PROJECT: Village
Creek Drainage Area
Wastewater Collection System Evaluation Study
LOCATION: Fort Worth, Texas
SCHEDULE: 2000 - 2001
PROJECT BACKGROUND:
The Village Creek Drainage Area contains approximately 292,000 linear feet of
wastewater collection pipe, 10" in diameter and above, and is part of the Fort Worth
Sanitary Sewer System. The original collector main was built in the 1950's and
1960's with additions in the 1980's and 1990's. Much of this area is currently
undeveloped but is presently experiencing rapid growth.
Previous analysis revealed inflow and infiltration (I/I) in the Village Creek Drainage Area. Deterioration of older concrete pipeline has also caused structural and maintenance problems for the City. The City's Wastewater Collection Master Plan recommends capacity improvements be made to the system within the next five years to meet growth demand and reduce I/I.
PROJECT SCOPE:
Wade & Associates is conducting a Sanitary Sewer Evaluation Study to identify major
sources of I/I and recommend a rehabilitation program. The goal of the study is to
reduce peak wet weather wastewater flows in order to postpone or eliminate the need for
additional capacity improvements currently outlined under the City's Master Plan. The
study includes mapping, alignment walk-out and GPS surveying, manhole inspections, visual
pipe inspections, smoke testing and dyed-water testing. A CCTV inspection and
cleaning program will be performed in several Mains to remove debris and restore the
pipeline's original hydraulic capacity as well as fully assess structural deficiencies.
Wade will also implement a flow and rainfall monitoring program in order to conduct a capacity utilization analysis. The analysis will prioritize the capacity improvements in the Lower Village Creek Drainage Area where rapid growth is expected.
PROJECT:
Construction Inspection
LOCATION:
North Richland Hills,
Texas
SCHEDULE:
1998
PROJECT
SCOPE:
Wade & Associates provided observation and inspection during the construction phase of the City’s Sanitary Sewer Rehabilitation Construction, Contract A which included rehabilitation or replacement of approximately 180 manholes, 27,500 lf of pipeline replacement and rehabilitation, and approximately 225 point repairs by open cut and trenchless methods. Wade’s services included bidding assistance, review of construction documents, construction observation, inspection and completion certification. Total construction cost is $2.7 million.
PROJECT:
Mains
42 and 54 Rehabilitation Design
LOCATION:
Fort Worth,
Texas
SCHEDULE: 2000
PROJECT
SCOPE:
In Sanitary Sewer Main 42 and Main 54
Drainage Area, Wade provided
supplemental SSES and comprehensive design services for the trenchless
rehabilitation of 33,900 linear feet of sewers in this basin. Pipelines ranged
in age from 50 to 100 years. Additional services included dyed-water testing,
smoke testing, and CCTV inspections to evaluate the extent of rehabilitation
requirements and select the appropriate and cost-effective solutions. Wade
provided construction administration services. Total construction value for the
improvements was $3.05 million.
PROJECT: Main C1C4B Sanitary Sewer Evaluation Study
LOCATION: Fort Worth, Texas
Main C1C4B Basin
SCHEDULE: 1996 - 1999
PROJECT BACKGROUND:
In 1992, the City negotiated a 10-year Administrative Order with the EPA Region VI to
eliminate uncontrolled SSOs and improve the overall performance of the wastewater
collection system. Beginning in 1994, Wade & Associates became one of the City’s
two principal consulting engineers to provide study, design, and construction
administration services for the City’s $160 million sewer renewal program. Wade &
Associates has provided SSES and I/I services for many of the basins identified in the
original AO. In 1996, Wade & Associates was awarded a $1.1 million contract to provide
SSES and design services for Basin M-C1C4B, one of the largest of these basins. Other
basins include M-161/221, M-106R, M-189R, M-390, M-42, and M-21.
PROJECT SCOPE:
Wade & Associates has provided comprehensive SSES, design, and construction
management services for the rehabilitation and restoration of 230,000 feet of sanitary
sewer. As part of this project, high pressure cleaning for 178,000 feet was performed. In
addition, smoke testing, physical inspection (manhole and visual pipe), door-to-door
building inspections, follow up dyed-water confirmation, hydraulic modeling, I/I analysis,
hydraulic modeling and a final recommended improvement plan were provided by Wade. The
study area included a major public relations program to work in and around the City’s
largest medical complex that included six major hospitals and numerous medical clinics.
All data was managed by Pipedreamă , Wade’s proprietary
software system for collection system management and linked to ArcViewă
for full GIS integration. Following the study, Wade & Associates provided complete
design services for improvements representing $6.8 million in improvements ranging from
manhole rehabilitation to a variety of trenchless pipeline renewal. Total footage of pipe
to be improved is 56,500 feet. Post-rehabilitation evaluation and certification is
scheduled for 2001.
PROJECT: I/I
(Inflow/Infiltration) Study
LOCATION: Fort Worth, Texas
Main 106-R Basin
SCHEDULE: September 1994 - December 1995
PROJECT BACKGROUND:
In response to an EPA-mandated schedule for reducing infiltration and inflow from the
wastewater collection system, the City of Fort Worth, Texas conducted a general wastewater
flow survey and engineering study in addition to hydraulic modeling. The resulting plan
indicated a need for additional flow monitoring and engineering of improvements. Basin M
106-R contains approximately 200,000 linear feet of sanitary sewer.
PROJECT SCOPE:
Wade & Associates provided program management for the resulting study with the goal
of reducing and managing excessive I/I in the City's wastewater collection and treatment
facilities. During Phase 1 of the project, the team characterized I/I sources. We
conducted flow monitoring and gathered rainfall data for analysis. Phase 2, the SSES,
included manhole inspections and smoke testing. During Phase 3, the team performed I/I
elimination analysis, relief/replacement sewer analysis, treatment analysis, and
cost-effectiveness analysis. Finally, the team provided a report of findings and technical
transfer and training on Pipedream©, Wade & Associates' proprietary hydraulic
modeling software.
PROJECT: I/I
(Inflow/Infiltration) Study
LOCATION: Fort Worth, Texas
Mains 207 & 207A
SCHEDULE: September 1994 - December 1995
PROJECT BACKGROUND:
In response to an EPA-mandated schedule for reducing infiltration and inflow from the
wastewater collection system, the City of Fort Worth, Texas conducted a general wastewater
flow survey and engineering study in addition to hydraulic modeling. The resulting plan
indicated a need for additional flow monitoring and engineering of improvements. Basins M
207 &207A contain approximately 300,000 linear feet of sanitary sewer.
PROJECT SCOPE:
Wade & Associates provided I/I abatement design with the goal of reducing and
managing excessive I/I and effectively transporting sewage in the City's wastewater
collection and treatment facilities. During Phase 1 of the project, the team designed
manhole rehabilitation for about 200 manholes. Phase II included design of over ten
thousand feet of sanitary sewer replacement and relief interceptors.
PROJECT: I/I (Inflow/Infiltration) Study
LOCATION: Fort Worth, Texas
Basin Main 390
SCHEDULE: October 1995 to February 1997
PROJECT BACKGROUND:
This project is part of the City of Fort Worth’s Integrated Wet Weather Program in
response to an EPA Administrative Order requiring the City to eliminate sanitary sewer
overflows. The City of Fort Worth operates a collection system of approximately 2,400
miles of pipe. The City also serves more than 20 wholesale wastewater customers. This
drainage area is one of the largest single areas studied by the City, being comprised of
some 420,000 lf of pipe. The area is made up of low income residential housing, commercial
and light industrial areas.
PROJECT SCOPE:
The City of Fort Worth selected Wade & Associates to conduct a comprehensive
sanitary sewer evaluation survey and sanitary sewer cleaning. Wade personnel wrote
specifications for and performed inspections during two sanitary sewer cleaning projects.
The small diameter cleaning project resulted in the cleaning of approximately 320,000 lf
6- to 15-inch pipe, and included CCTV inspection of 60,000 lf. Wade & Associates also
managed a 72,000 lf large diameter cleaning project, cleaning interceptors in all drainage
areas then under study by the City. Wade & Associates was responsible for installing,
maintaining and interrogating 16 flow meters and 5 rain gauges. Wade crews smoke tested
100% of the pipe in the drainage area, and inspected over 1,000 manholes. The data from
these inspections has been loaded into Pipedream© for use during analysis of the system.
Analysis of the CCTV tapes resulted in a recommendation of 40,000 lf of sewer
rehabilitation.
PROJECT: I/I
(Inflow/Infiltration) Study
LOCATION: Groves, Texas
SCHEDULE: December 1994 - April 1995
PROJECT BACKGROUND:
In response to an EPA-mandated schedule for upgrading the wastewater collection system,
the City of Groves, Texas, implemented a phased sanitary sewer study and investigation.
The first phase of this project focused on field activities and inspections that would
pinpoint system defects that contribute to the current bypass and overflow problems in the
sanitary sewer system.
PROJECT SCOPE:
During the initial phase, Wade provided flow monitoring services including, meter site
selection, flow meter installation, inflow projection analysis, rainfall event monitoring,
flow tabulation and final report. Following flow monitoring work, Wade's field manager
provided oversight and quality assurance reviews of manhole inspections, visual pipe
inspections, smoke testing, and data entry. The final report included a multi-phased sewer
rehabilitation program for both public and private sectors.
PROJECT: 2000 Waterline
Replacement Project
LOCATION: Hurst, Texas
SCHEDULE: December 2000 - June 2001
PROJECT SCOPE:
The City of Hurst selected Wade & Associates for the design of the 2000 Waterline
Replacement Project. Wade prepared construction documents for the replacement of
approximately 9,600 linear feet of small-diameter water lines located at 12 locations
throughout the city.
PROJECT: Sanitary
Sewer Evaluation Study
LOCATION: Kelly Air Force Base, Dallas, Texas
SCHEDULE: 1997
PROJECT SCOPE:
Wade & Associates, Inc. was selected by Halff and Associates, Inc. to provide
sub-consultant services for a Sanitary Sewer Evaluation Study at Kelly Air Force Base.
Wade & Associates conducted a seven day temporary flow monitoring program. Smoke
testing and dye tracing was performed on approximately 6,000 lf. of 6" to 21"
sanitary sewer pipe. Wade & Associates also conducted CCTV inspection of approximately
850 lf. sanitary sewer pipe.
PROJECT: Smoke
Testing
LOCATION: Lake Dallas M.U.A.
SCHEDULE: June 1995 - August 1995
PROJECT BACKGROUND:
The Lake Cities Metropolitan Utility Authority (Lake Dallas, TX) selected Wade &
Associates to conduct smoke testing of approximately 112,000 feet of sanitary sewers. The
purpose of the testing was to locate, document and characterize defects within the sewer
system that would require rehabilitation.
PROJECT SCOPE:
Wade & Associates began testing on July 10, 1995. A bilingual public relations
program including door hanger notifications was implemented. Actual testing located
defects within the sanitary sewer system that contributed to inflow/infiltration of rain
water and exfiltration of domestic wastewater. At the conclusion of the tests, Wade
submitted full documentation of the work performed including hard copies of all field
forms, photographs, and tabular summaries.
PROJECT: Sanitary
Sewer Investigation
LOCATION: Marshall, Texas
SCHEDULE: June 1994 - April 1995
PROJECT BACKGROUND:
In response to an EPA-mandated schedule for reducing inflow/infiltration from the
wastewater collection system, the City of Marshall, Texas, implemented a comprehensive
sewer system evaluation survey. The project goals were to establish a long-term sewer
system rehabilitation program to upgrade the structural integrity of the wastewater
collection system.
PROJECT SCOPE:
Wade's field manager provided training to crews conducting the sanitary sewer
evaluation survey for the City. Tasks included training for manhole inspections, smoke
testing, and dyed-water testing. The project scope also included final analysis and report
and prioritization of inflow/infiltration targeted for removal.
PROJECT: Internal
Pipeline Evaluation
The Campbell Soup Company
LOCATION: Paris, Texas
SCHEDULE: 1993
PROJECT BACKGROUND:
The Campbell Soup Company expanded a building at their Paris, Texas facility over a
series of wastewater connection lines. The concern regarding the structural condition of
the buried utilities prompted an internal audit of the lines via CCTV inspections and
engineering investigations. Recommendations for improvements included, infrastructure
improvement and operational improvement, both of which were based on the television
inspections.
PROJECT SCOPE:
Wade & Associates conducted an in situ inspection of each line segment by inserting
a remote controlled television camera tube into each sanitary sewer pipeline. A total of
3,589 linear feet of pipeline was inspected. All inspections were video taped and field
logged. The team also took still photographs of particular defects or pipe irregularities.
The overall internal inspections were very successful and resulted in almost 100% coverage
of the pipelines selected for this field audit. Based on the findings from the television
audit, Bucher, Willis, & Ratliff prepared a report regarding the structural conditions
and possible rehabilitation and remediation of each pipeline to ensure structural
integrity of the infrastructure.
