Annual Conference Brochure - AZ Water Association

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TECHNICAL SESSIONS 10:00 - 10:30am Team Approach to Quality During a Complex Concrete Pour at the 91st Avenue Wastewater Treatment Plant – UP05B Project Rich Distler, McCarthy Building Companies, Inc. The project team of McCarthy Building Companies and Malcolm Pirnie successfully completed their cast in place Odor Control Facility in one continuous concrete pour. Located in southwest Phoenix, this pour consisted of 12 thick walls that extended 32’ tall with an architectural reveal pattern and multiple system blockouts, penetrations, conduit, and embeds. The success of this single complex pour was the result of coordination, planning, and teamwork from the early stages through completion. 1:30 - 2:00pm Advantages and Disadvantages of Using CM@Risk Method for a Multi-Phased Horizontal Pipeline Project John J Masche, City of Phoenix Water Services The City of Phoenix Water Services Department selected the CM at Risk delivery method for a program spanning nine miles which includes the construction of over 100 manholes and over 50,000 linear feet of new pipe due to the known complexities on the project including poor soil conditions, 30-foot trench depths, unknown utilities, use of multiple installation techniques, quality control, safety and the use of multiple design firms. At the halfway point in the project, the project team will share their experiences with how this delivery method has worked well, and they will share their lessons learned in how the CM at Risk method has been challenging. The project team will discuss issues raised between pre-construction and construction and issues raised during construction. 2:00 - 2:30pm Plant Shutdowns – Overcoming Challenges To Get More Done With Less Time David Rieken, McCarthy Building Companies, Inc. The presentation will involve an overview of the plant, discussion of the various big picture work components in the 100+ shutdown items, review the major challenges with the shutdown and how we planned around the challenges, and finish up with what the shutdown set the stage for (i.e., on time completion of the entire project 6 months later). 2:30 - 3:00pm Pima County Regional Wastewater Reclamation Department Santa Cruz Interceptor Project Glen E. Peterson, Pima County Regional Wastewater Reclamation Dept. When the 1990 Metropolitan Facility Plan for the Pima County Regional Wastewater Reclamation Department (RWRD) was released, the Department identified that there was a need to provide additional wastewater capacity for the conveyance system serving the central, southeastern and southern Metropolitan Tucson area. The additional capacity was needed at the end of the system where the flow is conveyed to the Roger Road Wastewater Treatment Facility. 3:30 - 4:00pm The Challenges of Digester Rehabilitation in an Existing Plant Dana Lebeda, PCL Construction The Tolleson WWTP Solids Handling Improvements project focused on improving the plant’s solids handling capabilites mainly through rehabilitation of three of the plant’s existing digesters. Each of the three working digesters were designed to be outfit with new fixed concrete covers, new sludge mixing systems, and a new gas collection system. During the construction phase, the project team faced several challenges when planning and executing a sequence of work that would prevent impact to plant operations. Dedication to a team approach, and daily communication between plant and project staff enabled the team to successfully overcome these challenges. 20 4:00 - 4:30pm Construction Start-Up Activities: Let’s Get on the Same Page with the Terminology Craig Tweed, Brown and Caldwell As construction is significantly completed at a given site the verification that the equipment operates properly along with the initiation of the start-up plan takes place with the contractor, engineer and operational staff working together to accomplish this. Communication between each party is critical so each must know their role in the steps of the startup plan. The four primary steps are pre-operational testing, functional testing, operational testing, and commissioning. These terms and the responsibilities associated with each will be discussed to outline testing from beginning to end. When these terms are defined up front with the project team members it with promote success in the project staying on schedule. 4:30 - 5:00pm When is CMAR not CMAR? When it Masquerades as Design Build for the City of Surprise’s SPA-2 WRF John Doller, Carollo Engineers Presented will be a unique perspective on the use of CMAR in what could be more accurately defined as Design/ Build to complete the City of Surprise SPA-2 2.0 mgd MBR Water Reclamation Facility. The circumstances surrounding the procurement process will be discussed along with the resulting facility and the lessons learned on the way to successful completion. TRACK 5 - TOPICS IN INFRASTRUCTURE 8:00 - 8:30am Effectively Optimizing Your Water Distribution System Pressure to Reduce Main Breaks and Repair Costs Mel Huntspon, Arizona American Water Company This presentation will show how water production operators and water distribution utility workers came together to solve a problem of numerous costly water main breaks. By analyzing data, this strategy identified a way to reconfigure a pressure zone and change operating parameters to reduce the pressure range that was ultimately the root cause for repeated breaks within a 5 square mile area resulting in numerous water outages, extensive restoration repairs, negative public attention, and wasteful water loss. 8:30 - 9:00am Between a Rock & a Hard Place: Installing a New Inlet in Your Dam Reservoir Thomas M. Galeziewski, HDR Engineering, Inc. The City of Phoenix Water Services Department has been actively implementing improvements to its distribution system to minimize the formation of disinfection byproducts, and reduce the level of trihalomethane (THM) concentrations in the water delivered to consumers. The pressure zones located south of South Mountain are a key area of concern, as the water age in these zones can be significant. The zones are supplied from Reservoirs 1-ES3 (South Mountain) and 1-ES4 (42nd Place), each 20 MG capacity storage reservoirs, together with booster pump stations and large transmission mains. 9:00 - 9:30am In-Plant Secondary Effluent Pump Station Maximizing Beneficial and Cost Effective Reuse of WWTP Effluent Carter Biesemeyer, DSWA, a Jacobs Company DSWA designed the In-Plant Secondary Effluent Pump Station to convey effluent flows from the 91st Ave WWTP to the Tres Rios constructed wetlands. The design effort began in 2003, coordinating with several projects at the 91st Ave WWTP including the Unified Plant and Unified Pump Station projects. This project is co-sponsored by the City of Phoenix and the United States Army Corps of Engineers. Design considerations included selection of the pump station layout, accommodation of future facilities per the 91st Ave. WWTP Master Plan, conveyance of effluent from all five treatment facilities at the site and flexibility in effluent flow control. 9:30 - 10:00am Since I Fell For You – It’s Not Just CCTV and Sonar Anymore Charles G. Wilmut, Burgess and Niple The quest for a method to more effectively identify sources of rainfall dependent infiltration (RDI), groundwater infiltration, and exfiltration has led to the development of electro‐scan technology using the Focused Electrode Leak Locator (FELL). Since its introduction, FELL testing has provided a cost effective and time saving tool for field inspection of a broad range of non‐ferrous pipes. 10:00 - 10:30am Filter Underdrain - Mono-Pour Grout Installation Ben Julson, Black & Veatch In recent years Leopold, a division of ITT, has recommended a new Mono-Pour Grout Installation Method for installing their filter underdrain systems compared to the traditional installation method of installing the underdrain blocks into a grout bed. This presentation will explain the new installation method provided by Leopold and will provide advantages and disadvantages compared to the traditional installation method. TRACK 5 - ASSET MANAGEMENT 1:30 - 2:00pm The Trenchless Rehabilitation of Potable Water Mains Joe Graham, Dibble Engineering This presentation will introduce the relative new area of structural rehabilitation of potable water mains using an NSF approved, fiberglass reinforced epoxy cured-in-place-pipe (CIPP) structural lining. A case study of the first such project in the State of Arizona – the City of Phoenix Sweetwater Avenue/Interstate 17 Potable Water Main Rehabilitation, completed in December 2010 will be discussed. Discussed will be the advantages and limitation of trenchless technology along with the existing pipe preparation procedures and recommended quality control testing essential to a successful potable water rehabilitation project. Recommended procedures will be highlighted through photographs taken during construction. Samples of the materials used for the case study project will be made available. 2:00 - 2:30pm Wastewater Main Condition Assessment Utilizing Ultrasonic Thickness Gauge Bhaskar Kolluri, Burgess and Niple The Arizona State University‐Tempe (Main) Campus has approximately five miles of utility tunnels within the campus underneath the sidewalk, and approximately four miles of water mains are located throughout these tunnels serving different buildings. The condition of this piping system is critically important to ASU. A failure of a water main in the tunnel environment with limited drainage would lead to flooding and possible infrastructure failure. The purpose of this study was to assess the existing condition of these exposed water mains utilizing General Electric DMS 2 ultrasonic thickness gauges for water main testing. Recommendations for improvements and necessary replacements were made to ensure efficient and safe operation of the water distribution system. 2:30 - 3:00pm Eliminating Collection System Maintenance through Proactive Repair in Glendale, AZ Ron Ablin, Brown and Caldwell Poor design and construction can create continuous maintenance problems within a collection system. The AZ Water Association 84th Annual Conference & Exhibition Arizona’s Water Future is Here!
City of Glendale initiated a proactive program to address specific areas within the City’s collection system that were mandating frequent maintenance due to poor hydraulic conditions. Solutions were developed to improve the operation of the system. These included the use of both conventional and trenchless technologies based on the best available and appropriate technology. This presentation will review the overall project, the maintenance issues identified and the process for developing solutions. TRACK 5 - INSTRUMENTATION & CONTROL 3:30 - 4:00pm Instrumentation and Control is Not Voodoo Dana Watts, Felix Construction Instrumentation and Control (I&C) has evolved into an essential role in the water industry. Whether it’s potable water production, treatment, or distribution; wastewater collection, treatment, or reuse; central plants, or remote sites, I&C has become universally ingrained into the process. The presenter’s intent is to provide an introduction to I&C for the person who interfaces with the highly technical practitioner. Often times, the non-technical person who is responsible for collecting information, communicating information, managing meetings, etc. is anxious about his or her involvement. This session will be divided into three parts: 1. Common I&C Hardware Components and Fundamental Terminology, 2. Process Control Systems, 3. Where it’s Headed. 4:00 - 4:30pm Comparison of On-line Chlorine Analysis Methods and Reagent Discharge Implications Terry L. Engelhardt, Hach Company Selection of an amperometric probe or an instrument utilizing the DPD colorimetric method for monitoring chlorine residual is not as simple as it may appear. Technical considerations of water temperature, pH, mineral content, and whether free or total chlorine residuals are to be measured will all impact the instrument selection. Chemical discharge from both amperometric and colorimetric systems may also have an impact on the selection process. Finally, frequency of maintenance, including calibration, and costs associated with maintenance and calibration procedures should be considered. This presentation will explore the technical aspects of the measurements as well as maintenance and discharge considerations for both measurement technologies. 4:30 - 5:00pm Real Time Control to Optimize VFD Driven Pumping Operation Ken Chandler, Brown and Caldwell Water and wastewater variable speed pumping systems utilize numerous variable frequency drives (VFD). VFDs are commonly utilized to vary the pump speed in response to varying conditions such as wet well level or discharge pressure. Many of these systems do not operate properly due to insufficient VFD and control system configuration that wastes energy and results in premature pump wear and motor failure. Close integration of all aspects of the pumping system is required for optimized efficiency, reliability, useful life, and therefore life-cycle costs. Configuration of control system operation must then also consider pump best efficiency point (BEP) and minimum pumping speed, in addition to control of level or pressure. TRACK 6 - RECHARGE FOR WATER RESOURCE 8:00 - 8:30am Aquifer Recharge From Vision To Reality Don Hanson, Clear Creek Associates Artificial aquifer recharge of reclaimed water has become commonplace among many Arizona municipalities and water providers as they implement various strategies Arizona’s Water Future is Here! to manage and augment their limited water resources. The objective of this talk is to provide water resources professionals with an overview of the most important factors to be considered when planning, siting, designing, and operating a recharge facility. The presentation will review the basic concepts of aquifer recharge, including the primary recharge techniques and facility siting criteria, such as: Current populations and projected growth; Existing water resources; Current and future reuse demands; Treatment plant capacities, locations, surrounding land use, and population densities; Available options for reclaimed water disposal; Hydrogeologic considerations; Water quality; and Capital and O&M costs. 8:30 - 9:00am Recharge of Reclaimed Water: Reducing Risks in the Face of Uncertainties Michele Robertson, Montgomery & Associates Recharge of excess reclaimed water is an attractive option for municipalities and utilities to meet future water supply needs, but the specter of emerging contaminants raises concerns. Arizona’s APP Program allows recharge of reclaimed water that meets aquifer water quality standards. However, these standards account for only a small portion of the potential contaminants in reclaimed water. It is unlikely that standards for these emerging contaminants will be established in the foreseeable future. This presentation describes considerations for reclaimed water recharge and approaches for reducing potential water quality affects on potable groundwater supplies in the face of uncertainties surrounding emerging contaminants. Combining effective treatment methods with appropriate recharge (and recovery) facility siting and design, based on hydrogeologic factors, will reduce future risk. 9:00 - 9:30am Making the Most of Underground Water Storage Facilities: Three Case studies in Arizona Robert F. Buss, Carollo Engineers, Inc. Three case studies of how water providers in our state addressed their particular water resources needs using spreading basins to recharge water underground for future recovery as well as make the most of these public water projects for other beneficial purposes will be addressed. These providers are: the Central Arizona Water Conservancy District (CAWCD), the Town of Gilbert, and the City of Chandler. Lessons learned include: 1. Location is key to success, so take the time to find the right property and geology. 2. Make the recharge facility a place to visit for public education and recreation. 3. If possible, team up with other city departments to maximize the use of the property. 9:30 - 10:00am Metro Water District’s CAP Water Implementation through Recharge and Recovery Mark Stratton, Metro Water District The Metropolitan Domestic Water Improvement District (Metro Water District) has been planning for the introduction of CAP water to its service area for over a decade. Many options have been researched, tested, and evaluated including a wide range of treatment and delivery options. Key drivers for the District include finished water quality, long-term reliability, and potential climate change impacts, among others. A key outcome of the District’s planning efforts is the decision to pursue recharge and recovery as the near-term mechanism to bring the CAP allocation into use. The District recently purchased the existing Avra Valley Recharge Project and has laid out a conceptual recovery plan for this facility. This presentation will discuss the District’s overall CAP program and the factors that have influenced the decision to use recharge and recovery as the near-term water supply solution. 10:00 - 10:30am Drilling Methods at Work: Chilean Miner Rescue Lisa Culbert, Layne Christensen Layne Christensen has been in business since 1882 finding clean water and over the years Layne has diversified into other business sectors including mining exploration, specialty drilling and water treatment. Layne’s expertise in the drilling business allowed them to participate in the Chilean Miner Rescue and in fact Layne was the first drilling company to reach the trapped miners. Research, preparation and collaboration all played important roles in this very successful human interest story. TRACK 6 - SALINITY & WATER RESOURCES 1:30 - 2:00pm Central Arizona Salinity Management Assessment Toolbox (CASMAT): SROG Concentrate Minimization Demonstration Testing Project Update Charlie He, Carollo Engineers Reclaimed water from SROG facilities is used for turf/crop irrigation, cooling, wetland restoration and groundwater recharge. TDS and individual ions in the reclaimed water adversely impact the reuse potential, causing infrastructure corrosion, worsened soil conditions and WET failure. SROG has been studying salinity issues for years and recently funded a brine minimization study to execute pilotscale testing on cost-effective concentrate management technologies. Instead of testing a single silver bullet technology, the project is delivering a toolbox, where a handful of concentrate treatment and pretreatment technologies will be assembled to meet specific end use requirements for different users at different facilities. This presentation will provide an overview on SROG’s salinity management approaches and a project update on the alternative evaluation, bench testing and modeling. 2:00 - 2:30pm Overview of Impact of TDS in the Phoenix Metropolitan Area Gustavo Lopez, Greeley and Hansen An overview of an issue that is growing in the Phoenix Metropolitan Area which is related to the TDS accumulation and how this constituent is impacting the water resources for this area will be presented. If this issues is not properly addressed it could result in a reduction of the available water resources for the Phoenix Metropolitan Area. Answers for questions consistently raised regarding quantifies and the sources of salts entering the Phoenix Metropolitan Area based on data collected at the water supply sources, water treatment facilities and wastewater treatment facilities will be addressed. The presentation will also discuss the impact of salts to urban users, agricultural demand, environmental aspects and wastewater treatment. 2:30 - 3:00pm Update on the Yuma Desalting Plant Angela Adams, US Bureau of Reclamation The Yuma Desalting Plant (YDP) was constructed under authority of the Colorado River Basin Salinity Control Act of 1974 to treat saline agricultural return flows from the Wellton-Mohawk Irrigation and Drainage District. The treated water is intended for inclusion in water deliveries to Mexico thereby preserving the like amount of water in Lake Mead. Construction of the plant was completed in 1992 and it operated on two occasions following its completion. The plant was maintained, but largely not operated, due to surplus and then normal water supply conditions on the Colorado River. In recent years, however, steady increases in water demand on the lower Colorado River coupled with the effects of a prolonged drought over the entire Colorado River Basin have prompted continued interest in plant operation. In 2007, Reclamation completed a Demonstration Run of the plant and in 2009 Reclamation developed a plan for a Pilot Run of the plant. This presentation will provide an update of the Pilot Run results. AZ Water Association 84th Annual Conference & Exhibition 21
Page 2 and 3: TO THE PROFESSIONALS DEDICATED TO A
Page 4 and 5: GENERAL INFORMATION HOTEL RESERVATI
Page 6 and 7: WELCOME Elaine M. Scruggs Mayor 4 S
Page 8 and 9: 6 AZ Water Association 84th Annual
Page 10 and 11: 8 84th Annual Conference & Exhibiti
Page 12 and 13: 10 Water For People is Proud to Ann
Page 14 and 15: SCHEDULE - THURSDAY, MAY 5, 2011 AZ
Page 16 and 17: TECHNICAL SESSIONS WEDNESDAY, MAY 4
Page 18 and 19: TECHNICAL SESSIONS 5:00 - 5:30pm Pr
Page 20 and 21: TECHNICAL SESSIONS 4:00 - 5:00pm Co
Page 24 and 25: TECHNICAL SESSIONS TRACK 6 - TOPICS
Page 26 and 27: TECHNICAL SESSIONS for aquifer rech
Page 28 and 29: TECHNICAL SESSIONS and installation
Page 30 and 31: 84TH AZ WATER CONFERENCE & EXHIBITI
Page 32: MAIL TO: Conference Registrar c/o M

Annual Conference Brochure - AZ Water Association

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