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Njpdes # Nj0020028 (NJPDES # NJ0020028) Sewer System Characterization Report June 27, 2018 Mott MacDonald 111 Wood Avenue South Iselin, NJ 08830 T +1 (973)379-3400 F +1 (973)912-2632 Website: mottmac.com (NJPDES # NJ0020028) Sewer System Characterization Report June 27, 2018 Bergen County Utilities Authority Sewer System Characterization Report Issue and revision record Revision Date Originator Checker Approver Description 0 6/27/18 Moore, B. Dening, J Rolak, J. Version submitted to NJDEP Project reference: 366372 Document Reference: http://pims02/pims/llisapi.dll/open/92547686 Bergen County Utilities Authority Sewer System Characterization Report Table of Contents CERTIFICATIONS ...................................................................................................................................................IV EXECUTIVE SUMMARY.....................................................................................................................................ES - 1 1 INTRODUCTION ..............................................................................................................................................1 1.1 RECEIVING WATER QUALITY...................................................................................................................................3 2 PROJECT DESCRIPTION .................................................................................................................................11 2.1 PROJECT GOALS.................................................................................................................................................11 3 SEWER SYSTEM CHARACTERIZATION ............................................................................................................13 3.1 SERVICE AREA LAND USE DATA.............................................................................................................................13 3.1.1 Borough of Fort Lee...............................................................................................................................13 3.1.2 City of Hackensack ................................................................................................................................14 3.1.3 Village of Ridgefield Park ......................................................................................................................16 3.2 MONITORING OF BACKGROUND CONDITIONS ..........................................................................................................17 3.2.1 Previous Dry Weather Monitoring.........................................................................................................17 3.2.2 Previous Wet Weather Monitoring .......................................................................................................17 3.2.3 Need for Additional Data ......................................................................................................................17 3.2.4 Flow Monitoring Data Collection and Usage.........................................................................................17 4 TRUNK/COMBINED SEWER SYSTEM CHARACTERISTICS.................................................................................24 4.1 SEWER SYSTEM UPDATES OR MODIFICATIONS .........................................................................................................24 Overpeck Trunk and Relief Sewers Interconnections.....................................................................................24 4.2 CSO REGULATORS AND CONTROL FACILITIES...........................................................................................................33 4.3 RECENT REPORTS AND PLANS ...............................................................................................................................35 4.4 RAINFALL MONITORING STUDY.............................................................................................................................35 4.4.1 Rainfall Data Collection and Usage.......................................................................................................35 4.4.2 Precipitation Data Collection.................................................................................................................38 4.4.3 Typical Year Analysis .............................................................................................................................38 5 MODEL DEVELOPMENT.................................................................................................................................40 5.1 MODELING FRAMEWORK.....................................................................................................................................40 5.2 DRY WEATHER FLOWS ........................................................................................................................................41 5.3 WET WEATHER FLOWS AND WATER QUALITY CALIBRATION.......................................................................................42 6 MODEL CALIBRATION AND VERIFICATION ....................................................................................................44 6.1 CALIBRATION CRITERIA........................................................................................................................................46 6.2 DRY WEATHER CALIBRATIONS ..............................................................................................................................47 6.3 WET WEATHER CALIBRATION...............................................................................................................................48 6.4 MODEL VERIFICATION.........................................................................................................................................50 6.5 MODEL ASSESSMENT..........................................................................................................................................51 7 CONSIDERATION OF SENSITIVE AREAS..........................................................................................................52 8 CSO ANALYSIS AND EXTENDED PERIOD SIMULATION ...................................................................................53 8.1 DRY WEATHER ANALYSIS.....................................................................................................................................53 8.2 DRY WEATHER CALIBRATION RESULTS....................................................................................................................54 Mott MacDonald i Bergen County Utilities Authority Sewer System Characterization Report 8.3 WET WEATHER CALIBRATION RESULTS...................................................................................................................71 8.4 WATER QUALITY CALIBRATION RESULTS...............................................................................................................111 8.5 EXTENDED PERIOD CSO SIMULATION FOR CALENDAR YEAR 2004.............................................................................111 9 TEMPORARY MONITORING STATIONS AND DATA.......................................................................................112 9.1 METER SITE NO. 1 ...........................................................................................................................................113 9.2 METER SITE NO. 2 ...........................................................................................................................................121 9.3 METER SITE NO. 3 ...........................................................................................................................................128 9.4 METER SITE NO. 4 ...........................................................................................................................................136 9.5 METER SITE NO. 5 ...........................................................................................................................................144 9.6 METER SITE NO. 6 ...........................................................................................................................................152 9.7 METER SITE NO. 7 ...........................................................................................................................................160 9.8 METER SITE NO. 8 ...........................................................................................................................................168 9.9 METER SITE NO. 9 ...........................................................................................................................................176 9.10 METER SITE NO. 10 .........................................................................................................................................184 10 CSO SEWER SYSTEM CHARACTERIZATION REPORTS ................................................................................191 List of Figures Figure 1 – BCUA District Trunk Sewers..........................................................................................................................2 Figure 2 – Baseline Monitoring Sites .............................................................................................................................4 Figure 3 – Baseline Monitoring Data Site B-1................................................................................................................6 Figure 4 – Baseline Monitoring Data Site B2 .................................................................................................................7
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