EXAMPLE PROJECT EXPERIENCE BY CATEGORY
CMOM – Capacity Management Operations & Maintenance Evaluations:
CMOM Program - Dothan Utilities (Dothan, AL) – Project Engineer. Conducted the baseline CMOM evaluation in response to an EPA Order, and developed recommendations for a CMOM program to achieve compliance with the Order. BWSC Project# 32650-05
CMOM Evaluation, I&I Reduction, City of Mt. Pleasant (Mt. Pleasant, TN) – Engineer. Developed a flow monitoring plan, reviewed and analyzed flow & rainfall data to create a priority list for sewer rehabilitation, and design the rehabilitation for those areas. Conducted the initial CMOM self assessment. BWSC Project #34808-31
Combined Sewers – Nine Minimum Controls Plans, Long-Term Control Plans:
Nine Minimum CSO Controls Plan, Metro Water Services (Nashville, TN) – Project Engineer. Created the first Nine Minimum CSO Controls Plan as required for NPDES Permits by the USEPA under 40 CFR Part 122 in 1994. Conducted a peer review of the updated plan in 2009. BWSC Project# 33008-04
Schrader Lane and Benedict & Crutcher CSO Solids & Floatables Control, Metro Water Services (Nashville, TN) – Project Engineer. Conducted a hydrologic and feasibility study to identify technology for compliance with EPA’s Nine Minimum CSO Controls, and recommended installation of in-line netting Trash-Trap units at both locations. Developed designs for cutting the 72” brick sewer outfall downstream of the regulator at Benedict & Crutcher and the 96” brick outfall at Schrader Lane. Coordinated geotechnical investigations as a basis for foundation designs at both locations and developed permits for wetland protection at Schrader Lane. BWSC Project# 33008-05 & 33008-06
Broadway & Van Buren CSO Elimination and Schrader Lane Outfall Rehabilitation, Project #11-SC-006 Metro Water Services (Nashville, TN) – Project Engineer for design of modifications to plug two CSOs and install a PVC spiral-emplaced profile-strip liner in 800 lf of a 96” brick sewer outfall. No excavation was required and the wetlands were protected. BWSC Project# 33008-05 & 33008-07
CSO Basin Study, City of Clarksville (Clarksville, TN) – project Engineer. This study evaluated the combined sewer system adjacent to the Central Business District. A network of twenty-six sewer flow meters and three rain gauges was installed to monitor the tributary areas for two permitted CSO discharge points. The results were analyzed using the standardized procedures he developed, and used to calibrate and validate a SWMM hydraulic model by others. CTE Project No. 61199
CSO Long-Term Control Plan and Nine Minimum Controls Plan, Unified Government of Wyandotte County, (Kansas City, KS). Project Engineer for the design of the network of 40 temporary flow meters (in 2 phases) to measure overflow locations and critical locations on combined sewer trunks. The monitoring was coordinated with simultaneous water quality sampling, and integrated with development and calibration of a SWMM hydraulic model of the combined sewer system. A Nine Minimum CSO Controls Plan was written to comply with EPA requirements. CTE Project No. 45703
Sewer Rehabilitation Design, Management, Monitoring & Evaluation:
Sewer Rehabilitation Program Management, City of Brentwood (Brentwood, TN) – Project Engineer. About 26 miles of the collection system has been lined (17.5%) using conventional and UV cured-in-place liner products installed by three contractors. The rehabilitation contracts were on a “fast-track” and included the TV reconnaissance with set price “releases” of work as the video inspection proceeds. The work includes rehabilitation of laterals and manholes. Work in the initial rehab project areas reduced 24-hour I/I by 58% and peak hour I/I by 49%. These projects resulted in a 30% reduction of overflows, and elimination of 700 million gallons of I/I annually (41%) by 2011. Based on the verification of flow reduction, the State of Tennessee granted moratorium relief for up to 0.767 mgd for new connections. The cost of this work is being offset by savings of nearly $1 million annually to the City on treatment fees by the adjacent Nashville treatment system. BWSC Project # 33596-00
Sugartree Creek Sewer Rehabilitation, Metro Water Services (Nashville, TN) - Engineer. This project contained over 50 miles of 8” to 30” sewer lines. A network of 15 ADS temporary flow-monitors were installed to operate in conjunction with 3 existing permanent meters. The sub-areas were priority ranked and rehabilitated in 4 phases. About 42,000 linear feet (15.5%) of cured-in-place liner were installed. Follow-up flow monitoring documented the removal of over 600 million gallons of I/I, annually, and a decrease of the projected peak hour flow rate by 16 mgd (resulting from a 5-year rainfall). This monitoring was sufficient to document that sufficient system capacity had been recaptured to contain peak hour flows from the 5-year design storm. Based on the cost of transport and treatment alone, this reduction of I/I means a payback of construction costs in about 7 years. CTE Project No. 60509, 60609, 60614
Mill Creek 36” Trunk Sewer Rehabilitation, Project #06-SC-185, Metro Water Services (Nashville, TN) – project manager and Engineer. Conducted a televideo inspection of 26,800 ft of 36” trunk sewer and tributary lines, reviewed the video and made design decisions. Planned and developed a design for abandoning the leaking 36” sewer, making new connections to a parallel trunk, and conducting sewer rehabilitation by CIP lining for 2,027 lf of 8” and 10” pipes tributary to the trunk sewer. This project eliminated major sources of infiltration into the old trunk system and eliminated segments with poor flow characteristics with maintenance problems. BWSC Project # 33008-01 and #33008-08
96-inch Schrader Lane Outfall Rehabilitation, Project #11-SC-006 Metro Water Services (Nashville, TN) – Project Engineer. See description in CSO category.
Central City Sewer Rehabilitation (Phases I & II), Jackson Energy Authority (Jackson, TN) – project manager and Engineer. Eight ADS temporary flow meters were used to quantify I/I and prioritize 3 sub-systems for rehabilitation. By using the advanced analytical (scattergraph) capabilities of the ADS system, Mr. Kurz demonstrated that the Central City trunk sewer would have sufficient hydraulic capacity for the 5 year design storm if it was cleaned and rehabilitated. Subsequent televideo inspection revealed blockages and deteriorated pipe. About 7,000 linear feet of 15” pipe have been lined and overflows eliminated in that area. CTE Project No. 61112
I/I Control Program, Chattanooga Interceptor Sewer System (Chattanooga, TN) – project manager and designer. Mr. Kurz developed and implemented the I/I Control Program for the City, and designed the first sewer rehabilitation projects. 19 ADS permanent flow meters (and 2 rain gauges) represented the cornerstone of the program. The data from those instruments established the I/I baseline, and documented improvements resulting from rehabilitation. About 8,000 linear feet of rehabilitation was conducted on 15” to 54” sanitary sewers in the Chattanooga Creek Trunk Sewer Rehabilitation. Comparison of data for a full year before and after showed that nearly 400 million gallons of I/I had been removed annually. Additionally, the instruments were sensitive enough (verified by detailed calibration) to show that the capacity of the trunk was increased by the new lining.
Flow & Rainfall Monitoring – Analysis, RDI/I & Rehabilitation Effectiveness
Overflow Abatement Program (OAP), Metro Water Services (Nashville, TN). Project Manager for this 10-year program which was initiated in 1990, and which incorporated over 90 permanent and over 700 temporary ADS flow monitors. Mr. Kurz recommended over 300 flow monitoring locations. He also developed and standardized the techniques for analyzing the data collected before and after sewer rehabilitation to determine its effectiveness. Annually, over 3.6 billion gallons of I/I have been documented as removed from the system. As a result, the duration of overflows has been reduced by half. CTE Project No. 3478
Whites Creek I/I Reduction Project, Metro Water Services (Nashville, TN). This contract is unique because it considered the effectiveness of I/I reduction in the schedule for compensation. This approach has sometimes been called: “pay-for-performance.” Mr. Kurz developed the standardized approach for analysis of flow monitoring data for estimating I/I quantities and rates that represent the baseline for payment on this contract. Also, it has wide applicability nation-wide. The procedures were designed to be objective (minimizing variation among human analysts) and thereby have reproducible results. Statistical parameters were used as an objective means to express the level of overall confidence in the data. CTE Project No. 62105
Flow Monitoring Data Analysis, City of Columbus (Columbus, OH) –The City requested assistance from three outside consultants to review and analyze flow monitoring data before and after sewer rehabilitation (by an earlier consultant) to determine the level of effectiveness of the rehabilitation work. BWSC Project # 34347-00
Flow Monitoring Analysis Pilot Project, Buried Asset Management Institute (BAMI), City of Atlanta (Atlanta, GA). Mr. Kurz proposed and conducted this study to evaluate data from five sewer flow monitors in the Camp Creek Basin of the Atlanta sewer system using the standardized analytical procedure. This sub-basin had a base flow of 1.265 mgd, and the peak-hour I/I rate related to the 2-year, 24-hour rainfall was projected to be 3.885 mgd. The statistical measures for linear correlation and 95% confidence indicated that the projections for these sites were acceptable and compared well to data from other cities using this procedure. Additionally, the study showed that the peak I/I flow from the 24-hour storm was more significant than from the more intense 3-hour summer storm. No project number – donated research time
Flow Monitoring and I/I Baseline Study, Chattanooga Interceptor Sewer System (Chattanooga, TN) – Project Engineer. This study included evaluating monitoring data from ten locations to determine critical basin parameters: base dry weather flow, 24-hour I/I, peak-hour I/I, and annual I/I. These parameters were calculated using the non-proprietary “Standardized Procedure. The purpose of this study is to develop baseline measurements for determining the effectiveness of sewer rehabilitation work as part of the Chattanooga overflow and I/I reduction program. BWSC Project # 33544-00
Sewer System Capacity Management – Monitoring & Analysis
Campbell Lane Pumping Station - Interceptor Capacity, Bowling Green Municipal Utilities (Bowling Green, KY) – Engineer. A flow monitoring network was designed for four meters on the 18” interceptor downstream of the pumping station. The installation and safety procedures were supervised. Base flow and I/I quantities were determined for each segment and the limiting flow capacity was calculated from analysis of the data scatter-graphs and hydraulic operating characteristics.
Hydraulic Modeling and Testing
Flow Monitor Laboratory and Field Tests, US-EPA ETV (Environmental Testing & Verification) Program (ADS Environmental Services) – Project Manager and Engineer. ADS Environmental Services submitted two flow monitoring instruments to the US-EPA ETV program for independent evaluation and verification of the monitor accuracy, operating characteristics, dependability and maintenance procedures. The work was conducted at the Utah State University Hydraulics Laboratory in Logan, UT and in Quebec, Canada. The results were published by EPA and are available on its ETV website. These two instruments are the only ones verified under that program.
CMOM – Capacity Management Operations & Maintenance Evaluations:
CMOM Program - Dothan Utilities (Dothan, AL) – Project Engineer. Conducted the baseline CMOM evaluation in response to an EPA Order, and developed recommendations for a CMOM program to achieve compliance with the Order. BWSC Project# 32650-05
CMOM Evaluation, I&I Reduction, City of Mt. Pleasant (Mt. Pleasant, TN) – Engineer. Developed a flow monitoring plan, reviewed and analyzed flow & rainfall data to create a priority list for sewer rehabilitation, and design the rehabilitation for those areas. Conducted the initial CMOM self assessment. BWSC Project #34808-31
Combined Sewers – Nine Minimum Controls Plans, Long-Term Control Plans:
Nine Minimum CSO Controls Plan, Metro Water Services (Nashville, TN) – Project Engineer. Created the first Nine Minimum CSO Controls Plan as required for NPDES Permits by the USEPA under 40 CFR Part 122 in 1994. Conducted a peer review of the updated plan in 2009. BWSC Project# 33008-04
Schrader Lane and Benedict & Crutcher CSO Solids & Floatables Control, Metro Water Services (Nashville, TN) – Project Engineer. Conducted a hydrologic and feasibility study to identify technology for compliance with EPA’s Nine Minimum CSO Controls, and recommended installation of in-line netting Trash-Trap units at both locations. Developed designs for cutting the 72” brick sewer outfall downstream of the regulator at Benedict & Crutcher and the 96” brick outfall at Schrader Lane. Coordinated geotechnical investigations as a basis for foundation designs at both locations and developed permits for wetland protection at Schrader Lane. BWSC Project# 33008-05 & 33008-06
Broadway & Van Buren CSO Elimination and Schrader Lane Outfall Rehabilitation, Project #11-SC-006 Metro Water Services (Nashville, TN) – Project Engineer for design of modifications to plug two CSOs and install a PVC spiral-emplaced profile-strip liner in 800 lf of a 96” brick sewer outfall. No excavation was required and the wetlands were protected. BWSC Project# 33008-05 & 33008-07
CSO Basin Study, City of Clarksville (Clarksville, TN) – project Engineer. This study evaluated the combined sewer system adjacent to the Central Business District. A network of twenty-six sewer flow meters and three rain gauges was installed to monitor the tributary areas for two permitted CSO discharge points. The results were analyzed using the standardized procedures he developed, and used to calibrate and validate a SWMM hydraulic model by others. CTE Project No. 61199
CSO Long-Term Control Plan and Nine Minimum Controls Plan, Unified Government of Wyandotte County, (Kansas City, KS). Project Engineer for the design of the network of 40 temporary flow meters (in 2 phases) to measure overflow locations and critical locations on combined sewer trunks. The monitoring was coordinated with simultaneous water quality sampling, and integrated with development and calibration of a SWMM hydraulic model of the combined sewer system. A Nine Minimum CSO Controls Plan was written to comply with EPA requirements. CTE Project No. 45703
Sewer Rehabilitation Design, Management, Monitoring & Evaluation:
Sewer Rehabilitation Program Management, City of Brentwood (Brentwood, TN) – Project Engineer. About 26 miles of the collection system has been lined (17.5%) using conventional and UV cured-in-place liner products installed by three contractors. The rehabilitation contracts were on a “fast-track” and included the TV reconnaissance with set price “releases” of work as the video inspection proceeds. The work includes rehabilitation of laterals and manholes. Work in the initial rehab project areas reduced 24-hour I/I by 58% and peak hour I/I by 49%. These projects resulted in a 30% reduction of overflows, and elimination of 700 million gallons of I/I annually (41%) by 2011. Based on the verification of flow reduction, the State of Tennessee granted moratorium relief for up to 0.767 mgd for new connections. The cost of this work is being offset by savings of nearly $1 million annually to the City on treatment fees by the adjacent Nashville treatment system. BWSC Project # 33596-00
Sugartree Creek Sewer Rehabilitation, Metro Water Services (Nashville, TN) - Engineer. This project contained over 50 miles of 8” to 30” sewer lines. A network of 15 ADS temporary flow-monitors were installed to operate in conjunction with 3 existing permanent meters. The sub-areas were priority ranked and rehabilitated in 4 phases. About 42,000 linear feet (15.5%) of cured-in-place liner were installed. Follow-up flow monitoring documented the removal of over 600 million gallons of I/I, annually, and a decrease of the projected peak hour flow rate by 16 mgd (resulting from a 5-year rainfall). This monitoring was sufficient to document that sufficient system capacity had been recaptured to contain peak hour flows from the 5-year design storm. Based on the cost of transport and treatment alone, this reduction of I/I means a payback of construction costs in about 7 years. CTE Project No. 60509, 60609, 60614
Mill Creek 36” Trunk Sewer Rehabilitation, Project #06-SC-185, Metro Water Services (Nashville, TN) – project manager and Engineer. Conducted a televideo inspection of 26,800 ft of 36” trunk sewer and tributary lines, reviewed the video and made design decisions. Planned and developed a design for abandoning the leaking 36” sewer, making new connections to a parallel trunk, and conducting sewer rehabilitation by CIP lining for 2,027 lf of 8” and 10” pipes tributary to the trunk sewer. This project eliminated major sources of infiltration into the old trunk system and eliminated segments with poor flow characteristics with maintenance problems. BWSC Project # 33008-01 and #33008-08
96-inch Schrader Lane Outfall Rehabilitation, Project #11-SC-006 Metro Water Services (Nashville, TN) – Project Engineer. See description in CSO category.
Central City Sewer Rehabilitation (Phases I & II), Jackson Energy Authority (Jackson, TN) – project manager and Engineer. Eight ADS temporary flow meters were used to quantify I/I and prioritize 3 sub-systems for rehabilitation. By using the advanced analytical (scattergraph) capabilities of the ADS system, Mr. Kurz demonstrated that the Central City trunk sewer would have sufficient hydraulic capacity for the 5 year design storm if it was cleaned and rehabilitated. Subsequent televideo inspection revealed blockages and deteriorated pipe. About 7,000 linear feet of 15” pipe have been lined and overflows eliminated in that area. CTE Project No. 61112
I/I Control Program, Chattanooga Interceptor Sewer System (Chattanooga, TN) – project manager and designer. Mr. Kurz developed and implemented the I/I Control Program for the City, and designed the first sewer rehabilitation projects. 19 ADS permanent flow meters (and 2 rain gauges) represented the cornerstone of the program. The data from those instruments established the I/I baseline, and documented improvements resulting from rehabilitation. About 8,000 linear feet of rehabilitation was conducted on 15” to 54” sanitary sewers in the Chattanooga Creek Trunk Sewer Rehabilitation. Comparison of data for a full year before and after showed that nearly 400 million gallons of I/I had been removed annually. Additionally, the instruments were sensitive enough (verified by detailed calibration) to show that the capacity of the trunk was increased by the new lining.
Flow & Rainfall Monitoring – Analysis, RDI/I & Rehabilitation Effectiveness
Overflow Abatement Program (OAP), Metro Water Services (Nashville, TN). Project Manager for this 10-year program which was initiated in 1990, and which incorporated over 90 permanent and over 700 temporary ADS flow monitors. Mr. Kurz recommended over 300 flow monitoring locations. He also developed and standardized the techniques for analyzing the data collected before and after sewer rehabilitation to determine its effectiveness. Annually, over 3.6 billion gallons of I/I have been documented as removed from the system. As a result, the duration of overflows has been reduced by half. CTE Project No. 3478
Whites Creek I/I Reduction Project, Metro Water Services (Nashville, TN). This contract is unique because it considered the effectiveness of I/I reduction in the schedule for compensation. This approach has sometimes been called: “pay-for-performance.” Mr. Kurz developed the standardized approach for analysis of flow monitoring data for estimating I/I quantities and rates that represent the baseline for payment on this contract. Also, it has wide applicability nation-wide. The procedures were designed to be objective (minimizing variation among human analysts) and thereby have reproducible results. Statistical parameters were used as an objective means to express the level of overall confidence in the data. CTE Project No. 62105
Flow Monitoring Data Analysis, City of Columbus (Columbus, OH) –The City requested assistance from three outside consultants to review and analyze flow monitoring data before and after sewer rehabilitation (by an earlier consultant) to determine the level of effectiveness of the rehabilitation work. BWSC Project # 34347-00
Flow Monitoring Analysis Pilot Project, Buried Asset Management Institute (BAMI), City of Atlanta (Atlanta, GA). Mr. Kurz proposed and conducted this study to evaluate data from five sewer flow monitors in the Camp Creek Basin of the Atlanta sewer system using the standardized analytical procedure. This sub-basin had a base flow of 1.265 mgd, and the peak-hour I/I rate related to the 2-year, 24-hour rainfall was projected to be 3.885 mgd. The statistical measures for linear correlation and 95% confidence indicated that the projections for these sites were acceptable and compared well to data from other cities using this procedure. Additionally, the study showed that the peak I/I flow from the 24-hour storm was more significant than from the more intense 3-hour summer storm. No project number – donated research time
Flow Monitoring and I/I Baseline Study, Chattanooga Interceptor Sewer System (Chattanooga, TN) – Project Engineer. This study included evaluating monitoring data from ten locations to determine critical basin parameters: base dry weather flow, 24-hour I/I, peak-hour I/I, and annual I/I. These parameters were calculated using the non-proprietary “Standardized Procedure. The purpose of this study is to develop baseline measurements for determining the effectiveness of sewer rehabilitation work as part of the Chattanooga overflow and I/I reduction program. BWSC Project # 33544-00
Sewer System Capacity Management – Monitoring & Analysis
Campbell Lane Pumping Station - Interceptor Capacity, Bowling Green Municipal Utilities (Bowling Green, KY) – Engineer. A flow monitoring network was designed for four meters on the 18” interceptor downstream of the pumping station. The installation and safety procedures were supervised. Base flow and I/I quantities were determined for each segment and the limiting flow capacity was calculated from analysis of the data scatter-graphs and hydraulic operating characteristics.
Hydraulic Modeling and Testing
Flow Monitor Laboratory and Field Tests, US-EPA ETV (Environmental Testing & Verification) Program (ADS Environmental Services) – Project Manager and Engineer. ADS Environmental Services submitted two flow monitoring instruments to the US-EPA ETV program for independent evaluation and verification of the monitor accuracy, operating characteristics, dependability and maintenance procedures. The work was conducted at the Utah State University Hydraulics Laboratory in Logan, UT and in Quebec, Canada. The results were published by EPA and are available on its ETV website. These two instruments are the only ones verified under that program.