baker road wastewater treatment plant ppcp & msp update · 2020-02-25 · baker road wwtp ppcp...

Baker Road Wastewater Treatment Plant PPCP & MSP Update Technical Memorandum #2: Flow Monitoring Program Review

The Regional Municipality of Niagara

GM BluePlan Project Number: 618060

February 21, 2020

Regional Municipality of Niagara Baker Road WWTP PPCP & MSP Update

Technical Memorandum #2: FM Program Review

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Table of Contents

1.0 INTRODUCTION ...........................................................................................................1 2.0 REGION FLOW MONITORING STRATEGY AND GAP ANALYSIS ............................1

2.1 Summary of Gap Analysis for Baker Road WWTP – Pumping Stations .............1 2.2 Summary of Gap Analysis for Baker Road WWTP – Gravity Trunk Flow Meters1

3.0 2019 BAKER ROAD PPCP FLOW MONITORING RECOMMENDATIONS .................2 3.1 Town of Grimsby .................................................................................................3 3.2 Town of Lincoln ...................................................................................................3 3.3 Township of West Lincoln ...................................................................................4 3.4 Summary of PPCP Flow Monitoring Needs ........................................................6

Figure 1: West Lincoln 2014 Flow Monitoring Spatial Coverage ............................................. 5

Figure 2: Catchment Discretization 2019 Baker Road PPCP – Town of Grimsby ................... 7

Figure 3: Catchment Discretization 2019 Baker Road PPCP – Township of West Lincoln ..... 8

Figure 4: Flow Monitoring Locations for MSP 2021 – Town of Grimsby ................................ 14

Figure 5: Flow Monitoring Locations for MSP 2021 – Town of Lincoln .................................. 15

Figure 6: Flow Monitoring Locations for MSP 2021 – Township of West Lincoln .................. 16



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1.0 Introduction

A comprehensive flow monitoring program review is required as part of the Pollution Prevention Control Plan (PPCP) and Wastewater Master Servicing Plan (MSP) Update for the Baker Road WWTP Catchment. The purpose of the flow monitoring program is to collect and analyze the data necessary for catchment discretization, support of hydraulic model calibration and validation, and the identification, classification and prioritization of extraneous flows on a catchment by catchment basis. The data that is available should provide an understanding of system performance, under various weather conditions, and support capital planning, asset renewal, and operational initiatives. Confidence in the flow data will facilitate more confidence in the recommendations made in the PPCP and MSP Update. The objective of Technical Memorandum #2: Flow Monitoring Program Review is to assess the wastewater system flow data (facility SCADA, regional flow monitors, municipality flow monitors, etc.) that is available to inform the completion of the PPCP and MSP Update study. Furthermore, recommendations are to be made to fill any system coverage gaps that may be identified. 2.0 Region Flow Monitoring Strategy and Gap Analysis

In 2019, GM BluePlan Engineering (GMBP) was retained by the Regional Municipality of Niagara (the Region) to develop a region-wide flow monitoring data collection strategy in preparation for the planned 2021 Master Servicing Plan Update (MSP) and to support the Region’s expanded wet weather program; this study is still ongoing. Recognizing the impacts that catchment size, spatial distribution, and data quality have on decision making, the Region is reviewing the current network of flow monitors and pump stations to ensure adequate data is available across the Region. A detailed summary of the report is provided in Appendix A.

2.1 Summary of Gap Analysis for Baker Road WWTP – Pumping Stations All pumping stations within the Baker Road WWTP network are currently being monitored, either with mag meters, HOBO meters, or both. At the time of the Flow Monitoring Strategy, two (2) pumping stations were identified as not having data collection, however the Region has recently installed meters.

2.2 Summary of Gap Analysis for Baker Road WWTP – Gravity Trunk Flow Meters The Region currently collects flow monitoring data in the gravity trunk sewer system. Table 1 summarizes existing flow meters.

Table 1: Summary of Active Niagara Region Flow Monitors Local-Area Municipality FM Name Install Date

Grimsby Lake St. East FM 12/13/2013

Roberts Road West FM 12/13/2013

Lincoln

Victoria Avenue FM 12/13/2013 Ontario Street FM 8/25/2016

Lister FM 12/13/2013 West Lincoln - -



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Following the gap analysis, five (5) new locations for permanent monitoring were identified, and recommended for install, within the Baker Road WWTP sewershed, summarized in Table 2.

Table 2: Proposed New Permanent Region Flow Monitor Sites Local-Area Municipality FM Name Priority

Grimsby Main Street W 1

Lake Street 1

Lincoln Ontario Street 3

Victoria Avenue 3 West Lincoln St Catharine Street 3

3.0 2019 Baker Road PPCP Flow Monitoring Recommendations

The objective of a PPCP study is to assess system capacity, infrastructure renewal requirements, and opportunities for operational and maintenance improvements at the local level, in addition to the regional infrastructure that is reviewed as part of the Region’s Master Servicing Plan. To complete the more local level system assessment, an understanding of flows within smaller catchment areas is required. PPCP Flow Monitoring Needs The objectives of a PPCP flow monitoring program are to inform decision making on system upgrades and overflow reductions.

• PPCP flow monitoring supplements MSP flow data (i.e. SPS SCADA and permanent regional monitors)

• Catchments should “cover” areas with approximately 5,000 people. • Flow monitors would ideally be placed in local trunk sewers. • Flow monitoring ideally completed the year before the model build or update so that data

is readily available for analysis. • Minimum of one year of data is preferred to capture trends in seasonality, especially for

groundwater infiltration. Opportunities to Eliminate Duplicative Flow Monitoring The Town of Grimsby, Town of Lincoln, and Township of West Lincoln carry out their own flow monitoring programs for hydraulic model calibrations, inflow and infiltration investigations, basement flooding studies, and development reviews. To eliminate duplicative flow monitoring, it is recommended that any planned flow monitoring by the LAMs be coordinated with the Region. Local level system flow monitoring in 2020 can enhance the PPCP study and provide the required data for the municipalities. Conversely the Region should provide insight to LAM’s on their flow monitoring efforts to recognize avoid duplication of effort and to maximize the value of all monitoring efforts.



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3.1 Town of Grimsby The Town of Grimsby’s historic flow monitoring (last 5 years) is limited to the Roberts Road SPS catchment; four (4) monitors were installed to calibrate the hydraulic model that was used to analyze the flows upstream of the facility. The historic flow data for the remainder of the system is limited to the MSP catchment level (Figure 4 in Appendix A), not refined enough to meet the PPCP flow monitoring objectives. Table 3 summarizes the recommended sources of flow data for the PPCP and Wastewater MSP Update.

Table 3: Recommended Flow Data for PPCP and MSP Update – Town of Grimsby

Data Source Commentary

Permanent Pumping Stations

Bal Harbour Biggar Lagoon Lake Street Lakewood Gardens (recently installed) Old Orchard (recently installed) Roberts Road Woodsview

Permanent Region Flow Meters

Lake St. East Roberts Road West Lake St. (new installation) Main St. West (new installation)

Roberts Road Study Flow Meters Historic data from four (4) monitors is adequate

New Temporary Meters 10 new temporary flow meters are proposed throughout local system

In summary, a total of 12 flow monitors within the Grimsby system is recommended to inform the 2019 Baker Road PPCP. Figure 2 presents the recommended catchment discretization for the 12 monitoring locations; the remaining area, outside of the coloured polygons, is captured by pumping station data and historic data from the Roberts Road Study. It should be noted that if the Region decides to not install the two new permanent flow meter sites, Figure 4 in Appendix A, they would be moved to temporary meters as they are still required for the 2019 Baker Road PPCP.

3.2 Town of Lincoln The Town of Lincoln installed 16 monitors throughout the network with data spanning from November 2018 to October 2019. This data, in conjunction with the permanent Regional monitors and SPS SCADA, provides adequate system coverage to complete the 2019 Baker Road PPCP study. Table 4 summarizes the flow data sources that will be used to complete the 2019 Baker Road PPCP.



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It should be noted that the two new proposed permanent Region site locations, Figure 5 in Appendix A, are not required for the 2019 Baker Road PPCP.

Table 4: Recommended Flow Data for PPCP and MSP Update – Town of Lincoln Data Source Commentary

Permanent Pumping Stations

Bridgeport Jordan Valley Laurie Avenue Campden Victoria Avenue Ontario Street

Permanent Region Flow Meters Victoria Avenue Ontario Street Lister

2018/2019 Town Program 16 temporary flow meters from the Town’s recent program are adequate

3.3 Township of West Lincoln The Township of West Lincoln completed flow monitoring in 2014 as part of an inflow and infiltration reduction study. The 12 monitor locations provided approximately 75% system coverage, however did not capture critical infrastructure along the creek. Furthermore, the Town has noted that a fair amount of infrastructure rehabilitation has been completed since this time and a few new subdivisions have been built, which could alter the flows since 2014. The Town also noted that by-passing occurs at the SPS during most rainfall events, due to significant inflow and infiltration. The Town is planning for a tactical I/I reduction program, which will incorporate small catchment flow monitoring, field investigation, and system rehabilitation. Phase 1 of the Town’s flow monitoring program would likely include a catchment discretization like that required for the 2019 Baker Road PPCP. To prevent duplicative efforts, it is recommended that flow meters be installed in 2020 at specific locations that will benefit both the municipality and the Region.



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Table 5 summarizes the recommended sources of flow data for the PPCP and Wastewater MSP Update.

Table 5: Recommended Flow Data for PPCP and MSP Update – Township of West Lincoln

Data Source Commentary

Permanent Pumping Stations Smithville Streamside

Permanent Region Flow Meters St. Catharine St. (new installation)

New Temporary Meters 6 new temporary flow meters are proposed throughout local system

In summary, a total of 7 flow monitors within the West Lincoln system is recommended to inform the 2019 Baker Road PPCP. Figure 3 presents the recommended catchment discretization for the 7 monitoring locations; the remaining area, outside of the coloured polygons, is captured by pumping station data. It should be noted that if the Region decides to not install the new permanent flow meter site, Figure 6 in Appendix A, it would be moved to a temporary meter as it is still required for the 2019 Baker Road PPCP.

Figure 1: West Lincoln 2014 Flow Monitoring Spatial Coverage



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3.4 Summary of PPCP Flow Monitoring Needs To complete the hydraulic model build and I&I catchment prioritization for the 2019 Baker Road WWTP PPCP & MSP Update, 19 flow meters are recommended. Table 6 summarizes the flow meter requirements.

Table 6: Summary of Proposed Flow Monitoring for 2019 Baker Road PPCP Local-Area Municipality Type # of Flow Meters

Grimsby Temporary Town Meters 10 Permanent Region Meter 2

Lincoln No Flow Monitoring Required

West Lincoln Temporary Town Meters 6 Permanent Region Meter 1

It should be noted that if the Region decides to not install the new permanent flow meter sites, they would be moved to temporary meters as they are still required for the 2019 Baker Road PPCP



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Figure 2: Catchment Discretization 2019 Baker Road PPCP – Town of Grimsby



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Figure 3: Catchment Discretization 2019 Baker Road PPCP – Township of West Lincoln

Appendix A – Region Flow Monitoring Strategy and Gap Analysis



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Background In 2019, GM BluePlan Engineering (GMBP) was retained by the Regional Municipality of Niagara (the Region) to develop a region-wide flow monitoring data collection strategy in preparation for the planned 2021 Master Servicing Plan Update (MSP) and to support the Region’s expanded wet weather program; this study is still ongoing. Recognizing the impacts that catchment size, spatial distribution, and data quality have on decision making, the Region is reviewing the current network of flow monitors and pump stations to ensure adequate data is available across the Region. The following data limitations were identified through the 2016 Master Servicing Plan: Spatial Data Coverage: The Region’s existing flow monitoring network has significant

variation in the spatial overage of the system, with some areas of the system having a relatively good distribution and segmentation of the system; while in other areas, a single monitor was available for relatively large catchment area.

Missing Coverage at SPS: Flow monitoring was not available at all Regional SPS, this limited the accuracy of station capacity and overflow assessment.

Data Quality and Temporal Coverage: Some monitoring data was of questionable quality or did not have enough duration of available data to support the full range of flow monitoring assessment.

Access to LAM Data: Difficulty in accessing and utilizing the LAM flow monitoring data due a lack of availability, inconsistency with Region’s data format and quality, and/or missing location information allowing the monitor to be located within the system.

Currently, the Region and Local-Area Municipalities (LAMs) conduct their flow monitoring separately and there is no formal coordination of programs. Through the process of collecting data and completing a gap analysis, GMBP identified several areas for improved data management and coordination between the Region and the LAMs to prevent duplicative efforts and to maximize the value of existing and recently completed flow monitoring programs. Flow monitoring coordination between the Region and the LAMs is further reviewed in Tech Memo #2 – Flow Monitoring Strategy. As part of Tech Memo #1 – Flow Monitoring Gap Analysis, GMBP reviewed flow data availability across the Region from various sources for data quality and spatial coverage:

• Region permanent gravity system monitors (active and historic); • Region facilities, including sewage pumping stations (SPS), wastewater treatment

plants (WWTP), and billing flumes; • and LAM flow monitoring programs were leveraged and reviewed for data quality and

spatial coverage appropriate for MSP level recommendations.



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Summary of Existing Data Availability for the Baker Road WWTP System The following summarizes the data availability, identified in Tech Memo #1 – Flow Monitoring Gap Analysis, for the Baker Road WWTP System: Sewage Pumping Stations (SPS) The Region collects data at 17 sites within the Baker Road WWTP System. The Region’s pumping stations are equipped with different types of flow meters depending on the location; some pumping stations have both mag meters and HOBO meters, and other pumping stations do not have any flow meters and do not collect flow data. Based on Region staff inputs, the mag meters have not recently been calibrated, nor is there a calibration schedule currently in place. Furthermore, past experience with HOBO meters has resulted in a range of data quality and should be taken into consideration when analyzing for model calibration purposes. Flow data from SPS can be used for volumetric model calibration; however, peak flows at the monitoring devices can be depressed due to system backup. Table 7 summarizes the available data at all SPS.

Table 7: Summary of Region Sanitary Pumping Stations Local-Area

Municipality Total #

SPS # SPS

No Data # SPS Mag

Meters Only # SPS Hobo Meters Only

# SPS Hobo & Mag Meters

Grimsby 7 2 2 1 2 Lincoln 8 0 3 3 2

West Lincoln 2 0 1 0 1 Total 17 2 6 4 5

Region Gravity System Flow Monitors The Region currently collects flow monitoring data in the gravity trunk sewer system. Table 8 summarizes existing flow meters.

Table 8: Summary of Active Niagara Region Flow Monitors Local-Area Municipality FM Name Install Date

Grimsby Lake St. East FM 12/13/2013

Roberts Road West FM 12/13/2013

Lincoln

Victoria Avenue FM 12/13/2013 Ontario Street FM 8/25/2016

Lister FM 12/13/2013 West Lincoln - -



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Local-Area Municipality Data LAMs collect flow data for various purposes and maintain their own flow monitoring programs. Table 9 summarizes active and historic LAM flow monitoring projects.

Table 9: Summary of Active and Historic Local-Area Municipality Flow Monitoring Projects

Local-Area Municipality Project or Program # of Flow

Monitors Years Active

Grimsby Roberts Road SPS Catchment Flow Monitoring 4 2014

Lincoln Sanitary Sewer Flow Monitoring 16 2018/2019

West Lincoln Inflow and Infiltration Study 12 2014

Recommendations for Baker Road WWTP System in Advance of 2021 MSP 2021 MSP Flow Monitoring Objectives The objectives of an MSP flow monitoring program are to establish year-round system characterization and detect trends in DWF and PWWF.

• Flow monitoring should be completed the year before the MSP so that data is readily available for analysis.

• Minimum of one year of data is preferred to capture trends in seasonality, especially for groundwater infiltration.

• Flow monitors would ideally be placed in Region trunk sewers. • Catchments (flow monitor or facility) should “cover” areas with approximately 10,000 to

15,000 people. • Catchments with estimated population greater than 15,000 should be subdivided into at

least two smaller catchments.

Table 10 summarizes the recommended number of catchments in the Baker Road WWTP System for completion of the 2021 MSP.

Table 10: Total Recommended MSP Catchments Municipality Total

Grimsby 16 West Lincoln 3

Lincoln 16 Total 35



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Gap Analysis for Baker Road WWTP System A gap analysis was completed to identify flow monitoring needs for the 2021 MSP following the classification in Table 11:

Table 11: Flow Monitoring Catchment Classification Definitions

Priority Level Definition Colour Proposed Priority “Rank”

Highest A location with no data and no monitor Grey 1 A pumping station with no flow meter Dark Grey 1

A pumping station with a mag meter only Purple 2 A monitor with no flow data being collected. A level monitor that is currently active but not recording useful flow data.

Red 2

A location that has active or recent local data covering more than 75% of the catchment area.

Orange 3

A historic monitor, not currently active, that has good data. Yellow 3

A wastewater treatment plant data set. Blue 3

Lowest

An active Region Monitor with good data quality. An active monitor, and data quality is not known but assumed good.

Green 4

The gap analysis for the 35 recommended catchments within the Baker Road WWTP system are as follows:

• Grimsby (Figure 4): install two (2) pumping station meters and two (2) in-system permanent flow meters to resolve the existing data gaps (Grey and Dark Grey).

o *required prior to 2021 MSP • Lincoln (Figure 5): install two (2) in-system permanent flow meters as existing coverage

is temporary from LAM flow monitoring projects. • West Lincoln (Figure 6): install one (1) in-system permanent flow meters as existing

coverage is temporary from LAM flow monitoring projects.



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Figure 4: Flow Monitoring Locations for MSP 2021 – Town of Grimsby



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Figure 5: Flow Monitoring Locations for MSP 2021 – Town of Lincoln



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Figure 6: Flow Monitoring Locations for MSP 2021 – Township of West Lincoln

baker road wastewater treatment plant ppcp & msp update · 2020-02-25 · baker road wwtp ppcp...

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