1.0 Scope of Work
Task 1. Meter Verification and Maintenance Support - This task includes the following activities:
Meter Verification:
The contractor should conduct quality assurance and quality control (QA/QC) to review the meter field testing performed by CS-1482 contractor. This task includes assisting with the scheduling of the verification tests. The
QA/QC functions include: (1) reviewing each meter in the program listed in exhibit “B” so that it receives the needed testing, (2) reviewing the field information to determine if the tests were properly configured by coordinating with CON-179, (3) reviewing the calculations to determine if the analysis was properly performed, (4) reviewing adjustment factors from prior testing, (5) identifying billing impact of any test results outside of QA/QC parameters (6) preparing reports for the WATF meetings which include current test results, an action item list, and progress update on the action items. And (7) documenting annual findings.
Program Meetings:
The contractor shall conduct bi-monthly meetings for the WATF committee. These meetings are needed to review the dye tests results, establish meter correction factors, and address customer concerns. This task includes preparation for the meetings, posting meeting handouts and dye tests to be reviewed prior to the meeting, updating adjustment factor tables, documenting meeting results and posting reports. The contractor shall develop methods to effectively present the material to an audience with a wide-ranging professional and technical expertise.
Alternative Meter Verifications:
This task involves extending existing and developing new statistical routines for review of data for potential meter issues and system operation issues. The task includes developing acceptable limits and criteria for deciding when a meter requires further field investigations and possibly additional verification testing using a method such as dye dilution testing. This task can potentially include performing a unitized flow balance analysis for each metered area so that the long term variability of each location can be evaluated.
Engineering Services:
Provide engineering services for meter validation, data analysis and estimation procedures.
Task 2. Wastewater Analysis Task Force Support
The contractor will engage a neutral third party facilitator without a technical or customer bias to facilitate the WATF bi-monthly meetings, including setting the agenda and writing a meeting summary report. The third party facilitator will encourage open, balanced, and productive dialogue amongst GLWA and the first tier customers.
The meeting summary will be written in the format comparable to the formats used by the GLWA Customer Outreach process. All reports and follow up meeting data will be loaded on https://outreach.glwater.org/. The contractor will ensure that the facilitator coordinates and posts meeting schedules on the calendar within https://outreach.glwater.org/. The contractor will provide reports of the WATF status at the First Tier Steering Committee meetings (held twice a year). The contractor is also expected to participate in the Rates Work Group (held twice a year) and Look Back Committee meetings (held monthly). Meeting summary information will address as applicable:
• Investigate and document meter issues, including work orders.
• Report on meter issues, including work orders, and how being addressed/resolved.
• Present QA/QC reviews of meter certification results with recommendations for whether to revise existing AFs or calibrated flume equations.
• Compile summary of meter data review information to indicate quality of data and level and type of data replacement for previous 2 months of data review.
• Calculate and present monthly flow balance for previous 2 months as well as annual flow balance calculations at scheduled meetings.
Task 3. Sewer Shares Input and Support
Historically, a critical output of the GDRSS Project has been the development of the annual flow balance. This flow balance helps with the preparation of the Sewer Shares update for the wastewater system. The annual flow balance is used to determine the amount of dry weather inflow/infiltration (DWII) within the GLWA collection system that is to be allocated to the customers through a protocol established by the Common Use Work Group and as required by the 1999 Rates Settlement Agreement.
Specifically, this task provided the calculations required for determining the estimates of residential, commercial/industrial, significant industrial, water treatment plant discharges, and DWII flows within each area that is metered. The resulting DWII was further allocated into components of local sewers, common-use sewers, customer connect sewers, and common-use interceptors.
To accomplish this task, changes in populations, tributary area, employment, significant industrial use are updated using methodologies consistent with GLWA master planning.
Updates and changes in the collection system inch-miles, when available, were estimated on an annual basis using input from GLWA, suburban customers, and retail customers.
The updated flow data was used with these other sources of information to prepare updated annual flow balance. The monthly dry weather flow factors were developed for each suburban and retail tributary area upstream from the billing meters. Basic statistics on average, peak, and minimum flows recorded were also calculated. In addition, total annual flows were estimated for each meter location.
GLWA and its customers will no longer utilize flow balance estimates for cost allocation, beginning in FY2014-FY2015 Rate Year. However, the contractor will maintain a database required to estimate a flow balance and will be ready to respond as needed to contingent requests as follows:
1. We expect a stronger emphasis will be placed on determination whether any customer’s underlying flow characteristics have changed (as distinguished from normal variations due to climatological conditions).
2. While a detailed cost allocation procedure will not be performed annually, GLWA and the wholesale customers will develop flow-based measure(s) to compare how annual shares track against the historical average being used for the Rate Period.
3. In addition, flow balance estimates may be used to identify portions of the GLWA collection system that may be contributing to high levels of unaccounted for flows measured at the WWTP. This effort could be valuable for Good Metering Practice since long-term calculations of incremental flows can show trends for each metered area. Unexpected changes in these trends are useful when reviewing problems with meter accuracy or evaluating increases in flows from one of the above sources noted.
Task 4. GDRSS Data Analysis and Operation Support
This task supports the use and analysis of information collected and compiled from the regional sewer system. It also provides support for the updated GDRSS application and data management tools. The tasks that will be supported include:
• Perform analyses to support information as requested by various customer related work groups.
• Identify, through an industry scan, innovations in hydraulic simulation that may lead to significant modifications of GDRSS or even replacement.
• Data analysis of process data, meter data analytics criteria and implementation, and GDRSS application detail reports that will be used for performing changes to the GDRSS application
Statewide