WASTEWATER COMMITTEE MEETING August 22, 2019 CLICK TO EDIT MASTER - - PowerPoint PPT Presentation

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WASTEWATER COMMITTEE MEETING August 22, 2019 CLICK TO EDIT MASTER - - PowerPoint PPT Presentation

Jan 22, 2024 179 likes •668 views

Regional Service Through Unity Meeting our Regions Needs Today and Tomorrow WASTEWATER COMMITTEE MEETING August 22, 2019 CLICK TO EDIT MASTER TITLE STYLE AGENDA Opening Remarks A. Chairman/Executive Director/Committee Champion Status

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Regional Service Through Unity… Meeting our Region’s Needs Today and Tomorrow

WASTEWATER COMMITTEE MEETING August 22, 2019

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CLICK TO EDIT MASTER TITLE STYLE AGENDA

Opening Remarks

A. Chairman/Executive Director/Committee Champion Status Report concerning legislation and regulatory matters, budgets, current projects and ongoing Wastewater System programs of the District

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SLIDE 3

Agenda

AGENDA

Action Items

A. Consider Approval of Wastewater Committee Meeting Minutes – July 25, 2019 Recommend Approval of Wastewater Committee Meeting Minutes

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SLIDE 4

Agenda

AGENDA

Action Items

B. Engineering Services Agreement on Muddy Creek Wastewater Treatment Plant Operations Building Improvements – Administrative Memorandum

  • No. 5452
  • Consider

recommendation

  • n

authorizing execution

  • f

engineering services agreement with Huitt-Zollars, Inc., in the amount of $129,000 for final engineering design of Project No. 310-0535-19, Muddy Creek Wastewater Treatment Plant Operations Building Improvements

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MUDDY CREEK WWTP OPERATIONS BUILDING IMPROVEMENTS

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Purpose of Action

Building expansion to better meet the needs of the Operations Department

  • Muddy Creek WWTP provides service to the cities of Wylie and Murphy
  • Plant was expanded from 5 MGD to 10 MGD in 2008
  • Operations Building Improvements
  • Expand laboratory and control room space as well as restrooms, showers,

lockers, and training room

  • Planning level estimated cost of $1,100,000
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MUDDY CREEK WWTP OPERATIONS BUILDING IMPROVEMENTS

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Agenda

RECOMMENDATION

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Consultant: Huitt-Zollars, Inc. Scope: Final engineering design Project:

  • No. 310-0535-19, Muddy Creek Wastewater

Treatment Plant Operations Building Improvements Amount: $129,000 This plant serves the cities of Wylie and Murphy.

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SLIDE 8

Agenda

AGENDA

Action Items

C. Construction Contract for 2018 Manhole and Pipeline Improvements Project – Administrative Memorandum No. 5453

  • Consider

recommendation

  • n

authorizing award

  • f

construction contract with Southern Trenchless Solutions, LLC, in the amount of $6,182,063.50 for Wastewater Conveyance System 2018 manhole and pipeline improvements project

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  • Repair 532 manholes (MH), 12 pipeline point repairs based on

prioritized condition assessment

  • Base Bid: Repair 363 manholes in UEFIS, 57 MH in Parker

Creek Int., & 19 MH in Sabine Creek Int.

  • Additive Alternates: Repair additional 93 manholes,

perform 12 trenchless point repairs in UEFIS

  • Engineer’s OPCC: $6,416,342.50
  • Total bid amount from Southern Trenchless Solutions, LLC is

$6,182,063.50

  • UEFIS - $5,248,920.58
  • Parker Creek Interceptor - $621,670.92
  • Sabine Creek Interceptor - $311,472.00

2018 MANHOLE AND PIPELINE IMPROVEMENTS PROJECT CONSTRUCTION AWARD

Purpose of Action

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SLIDE 10

Agenda

RECOMMENDATION

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Contractor: Southern Trenchless Solutions, LLC Scope: Construction Project: Wastewater Conveyance System 2018 Manhole and Pipeline Improvements Amount: $6,182,063.50

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Agenda

AGENDA

Action Items

D. Engineering Services Agreement

  • n

Upper East Fork Interceptor System Rehabilitation and Improvements 2020 – Administrative Memorandum

  • No. 5456
  • Consider

recommendation

  • n

authorizing execution

  • f

engineering services agreement with Grantham and Associates, Inc., in the amount

  • f

$149,235 for final engineering design on Project No. 501-0540-19, Upper East Fork Interceptor System Rehabilitation and Improvements 2020

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UEFIS REHABILITATION AND IMPROVEMENTS

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Purpose of Action Perform maintenance to our infrastructure to provide reliable service

  • Assessment Program evaluated condition of gravity pipelines
  • Identified defects and deficiencies of

– Allen Sewer Associated Partners (ASAP) West Interceptor – Richardson Spring Creek Trunk Sewer

  • Perform CIPP and point repairs
  • Extend the remaining useful life of these pipelines
  • Reduce inflow/infiltration
  • The planning level estimated cost is $1,845,000.
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UEFIS Rehabilitation and Improvements Project No. 501-0540-19 Administrative Memorandum No. 5456

Legend

Existing Pipelines Repair Locations

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Agenda

RECOMMENDATION

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Consultant: Grantham and Associates, Inc. Scope: Final Engineering Design Project:

  • No. 501-0540-19, UEFIS Rehabilitation and

Improvements 2020 Amount: $149,235

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Agenda

AGENDA

Action Items

E. Legal Remedies to recover damages for failure of 121 Force Main – Administrative Memorandum No. 5457

  • Consider recommendation on authorizing pursuit of legal

remedies including making demand and filing legal action to recover damages against parties responsible for failure of 121 Force Main Executive Session

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  • Authorizes a government body to consult with its attorney in an

Executive Session to seek advice on legal matters regarding pending

  • r contemplated litigation or a settlement offer.
  • A government body may not invoke this Section to convene a closed

session and then discuss matters outside of that provision.

  • General discussion of policy, unrelated to legal matters, is not

permitted under the language merely because an attorney is present.

  • Items discussed during consultation with the District’s attorney are

privileged and should remain confidential.

EXECUTIVE SESSION

Section 551.071, Consultation with Attorney

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Agenda

RECOMMENDATION

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Consultant: Saunders, Walsh & Beard (SW&B) Scope: Legal Services Project: 501-0491-18, 121 Force Main Improvements, Phase I Amount: N/A

Adjourn Executive Session

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CLICK TO EDIT MASTER TITLE STYLE AGENDA

Discussion Items

A. FY19 amended and FY20 preliminary budget briefing

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WASTEWATER SYSTEMS - BUDGET

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WASTEWATER

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PRELIMINARY 5-YEAR GROWTH PROJECTION (WASTEWATER)

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Department / Group FY19 FY20 FY21 FY22 FY23 FY24 Change from Current Projected FY24 Headcount Wastewater General 16 1

  • 1

17 Wilson Creek WWTP 58 4

  • 4

62 Floyd Branch WWTP 6

  • 2
  • 2

8 Rowlett Creek WWTP 24 2 4 4

  • 10

34 Mesquite WWTP 33

  • 5
  • 8

13 46 Panther Creek WWTP 16.5

  • 1
  • 3
  • 4

20.5 Stewart Creek WWTP 18.5

  • 18.5

Muddy Creek WWTP 18

  • 3

3 21 UEFIS / LEFIS (Convey) 16 3 1

  • 6
  • 10

26 Small WWTP 9 1 1 1 1

  • 4

13 Sister Grove WWTP 1 15 8

  • 24

24 Growth/Expansion

  • 11

6 20 13 11 61 Programs/Service

  • 9

5 14 Total Headcount 215 11 15 20 18 11 75 290

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REGIONAL WASTEWATER SYSTEM - BUDGET

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REGIONAL WASTEWATER SYSTEM

Allen, Forney, Frisco, Heath, McKinney, Melissa, Mesquite, Plano, Princeton, Prosper, Richardson, Rockwall and Seagoville

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REGIONAL WASTEWATER SYSTEM - BUDGET Expenditures by Category

$5 $10 $15 $20 $25 $30 $35 $40

Personnel Operating Capital FY19 Bdgt $12.3 $29.1 $29.2 FY19 Amnd $12.3 $28.9 $29.2 FY20 Bdgt $13.3 $31.4 $32.0

Millions

Personnel: +4 – Wilson Creek +2 – Rowlett Creek 0% .9% Decr 0% $41 M Bonds 7.9% Incr 7.6% Incr 9.4% Incr $2 M Support Svcs Alloc $0.4 M Landfill Svc Fees <$0.1 M> Escrow <$0.45 M> CIP Fund Decr $3.2 M Debt Incr $161 M Bonds

Total Budget FY19 Original $70.7 M FY19 Amended $70.4 M FY20 Requested $76.7 M

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UPPER EAST FORK INTERCEPTOR SYSTEM - BUDGET

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UPPER EAST FORK INTERCEPTOR SYSTEM

Allen, Frisco, McKinney, Melissa, Plano, Princeton, Prosper and Richardson

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UPPER EAST FORK INTERCEPTOR SYSTEM - BUDGET Expenditures by Category

$0 $5 $10 $15 $20 $25 $30

Personnel Operating Capital FY19 Bdgt $2.1 $10.2 $23.5 FY19 Amnd $2.0 $10.2 $23.5 FY20 Bdgt $2.3 $11.6 $24.9

Millions

2.7% Decr 0% 0% 11% Incr 5.6% Incr 14.6% Incr $1.2 M Support Svc Allocation $0.3 M Chemicals <$0.1 M> Facilities Maintenance Includes $50 M in Bonds Includes $64 M in Bonds

Total Budget FY19 Original $35.8 M FY19 Amended $35.8 M FY20 Requested $38.8 M

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SEWER SYSTEM - BUDGET

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SEWER SYSTEM

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SEWER SYSTEM - BUDGET Expenditures by Category

$0 $5 $10 $15 $20 $25

Personnel Operating Capital FY19 Bdgt $6.2 $15.5 $20.3 FY19 Amnd $6.2 $15.5 $20.3 FY20 Bdgt $6.9 $17.2 $17.9

Millions

1.4% Decr 0% 0% 10.5% Incr 12.1% Decr 10.1% Incr Personnel: +1 – Small Plants $0.9 M Support Svcs Alloc $0.3 M Power $0.2 M Capital Outlay $0.2 M Pipeline Maintenance <$1.1 M> Panther Creek WWTP <$.5 M> Stewart Creek WWTP <$.6 M> Buffalo Creek WWTP Includes $43 M in 3 Bond Issues

Total Budget FY19 Original $42.1 M FY19 Amended $42 M FY20 Requested $41.9 M

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CLICK TO EDIT MASTER TITLE STYLE AGENDA

Discussion Items

B. Update on Buffalo Creek Parallel Interceptor, Phase I

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BUFFALO CREEK PARALLEL INTERCEPTOR, PHASE 1

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Purpose

Provide parallel interceptor to meet the immediate and projected flow conditions due to population growth in the cities of Forney, Heath, and Rockwall

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BUFFALO CREEK PARALLEL INTERCEPTOR, PHASE 1

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  • 8.25 miles of parallel pipe
  • Originally proposed 36-inch prior

to model development

  • Current CMOM capacity

assessment indicates a 48-inch pipe is needed

  • Additional engineering services:
  • Validate and refine pipe size
  • Modify alignment due to

environmental conditions

  • Relocate golf course pond to avoid

residential area

  • $150K needed to complete the

design effort

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BUFFALO CREEK PARALLEL INTERCEPTOR, PHASE 1

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Additional Right-of-Way Acquisition

  • Existing 50’ wide easement for only one pipeline
  • Proposed Easements:
  • 70’ wide easement for multiple pipelines
  • 20’ temporary construction easements
  • Permanent access easements
  • Additional $2.3M
  • Recommend for approval to the Board in September 2019:
  • Additional Engineering Services (Consent Agenda)
  • Additional funding for ROW (Administrative Memorandum)
  • Future recommendations:
  • Phase I Construction & Bond Sale – March 2020
  • Lift Station & Force Main Construction – February 2021
  • Interceptor Phase II – December 2026
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CLICK TO EDIT MASTER TITLE STYLE AGENDA

Discussion Items

C. Update on Buffalo Creek Wastewater Interceptor bond issue

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BUFFALO CREEK INTERCEPTOR SYSTEM FY19 BONDS

Project ($)

Parallel Interceptor Design & Property $ 4.914 M* Lift Station Expansion Design $ 2.870 M Force Main Parallel Design $ .222 M

Total Cost of Project $ 8.006 M

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Buffalo Creek Interceptor serves the Cities of Rockwall, Forney, and Heath *Includes $2 M in reimbursements to cities for prior contributions

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BUFFALO CREEK INTERCEPTOR SYSTEM FY19 BONDS Cost of Projects $ 8.006 M Refunding $ 1.576 M Cost of Issuance $ 220 K Premium ($ 322 K)

TOTAL $ 9.480 M

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The 2018-19 Budget includes a bond issue for $24 M in project costs. The Finance/Audit Committee is expected to review this bond issue in September 2019.

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Agenda

AGENDA

Discussion Items

D. Discuss North McKinney Lift Station and North McKinney Transfer Force Main Rearranging agenda to discuss items E. and F. prior to item D.

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Agenda

AGENDA

Discussion Items

  • E. Discuss Upper East Fork Interceptor System Regional Capacity

Assessment and Assurance Study

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UEFIS REGIONAL CAPACITY ASSESSMENT

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Project Overview

  • Per Regional Capacity, Management, Operations, and Maintenance

(CMOM) Coordination Plan, expansion of NTMWD’s existing InfoSWMM model and refinement of processes to:

  • Provide tool for common understanding of Regional System hydraulic

behavior, capacity and interfaces

  • Provide collaborative process and approach to capacity planning with

NTMWD’s Communities

  • Improve capacity coordination and communication processes with

Communities

  • Inform NTMWD/Community decision-making processes for meeting

performance goals/regulations

  • Model will be expanded and further developed in close collaboration with

NTMWD’s UEFIS Communities

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UEFIS REGIONAL CAPACITY ASSURANCE PH III

Phase 1: Develop and Update Model –

  • Phase 1A to fully define the NTMWD and Community system extents

and perform initial data collection/data gap assessments.

  • Phase 1B to complete data collection, model construction, perform

flow monitoring and calibration Phase 2: Capacity Assessment – Assessment of System Capacity for level of service and planning horizon Phase 3: Capacity Assurance – Development of improvement alternatives to meet level of service and/or goals

Phases Established during Regional CMOM effort in 2016

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Recommend to be awarded to Jacobs, Inc. at Sept 2019 Board CIP Estimate of $1.54 Million Scope

– Develop Collaboration and Information Sharing Plan – Identify Areas of Capacity Collaboration – Establish Potential Alternatives and Document Options – Screen Alternatives with District and Communities – Assess Alternatives Modeling – Cost Benefit Analysis & Review – Review with Communities – Document Findings and Issue Report

Deliverables

– Living Document for Improvements and Community Coordination in time for budgeting – Final Hydraulic Model & Model Maintenance Procedures – Regional and District CMOM Work Plan Review

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PROJECT APPROACH & TIMELINE

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Develop Collaboration and Information Sharing Plan One Workshop

Nov 2019

Identify areas

  • f capacity

collaboration One Workshop

Jan 2020

Establish Potential Alternatives and Document Options One Workshop

Mar 2020

Assess Alternatives: Modeling Two Group Workshops & Ten Individual Workshops with Communities

Jun 2020

Cost Benefit Analysis and Review Two Workshops

Aug 2020

Review with Communities One Group Workshop, Ten Individual Workshops with Communities, & Two Followup Workshops

Nov 2020

Document Findings and Closeout Tasks

Apr 2021

PROJECT TIMELINE 18 - Month Timeline 10 Group Workshops 20 Workshops with Individual Communities

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Agenda

AGENDA

Discussion Items

F. Discuss Preston Road Lift Station Expansion

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PRESTON ROAD LIFT STATION EXPANSION

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Purpose

Increase capacity of Preston Road Lift Station to 40 MGD and replace equipment and instruments due to condition

  • Preliminary engineering to evaluate:
  • Site constraints for expansion
  • Lift station hydraulics and flow conditions
  • Discharge force main hydraulics and pressures
  • Equipment, electrical, and instrumentation replacement needs
  • Super-oxygenation odor control study and pilot
  • Recommended improvements for final design
  • Recommend for Board approval in September 2019
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PRESTON ROAD LIFT STATION EXPANSION

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  • Constructed in 1994 and

expanded in 2007 to current capacity of 29.5 MGD

  • Limited wet well capacity
  • All existing pump slots filled
  • Electrical service at capacity
  • Equipment near end of useful life
  • Force main hydraulics and

pressures

  • Site constraints
  • Growth in area driving need for

expansion to 40 MGD

  • Serves Frisco and west Plano
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Agenda

AGENDA

Discussion Items

D. Discuss North McKinney Lift Station and North McKinney Transfer Force Main

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NORTH MCKINNEY LIFT STATION & TRANSFER FORCE MAIN

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Purpose Convey flows from the Upper East Fork Interceptor System to the Sister Grove Regional Water Resource Recovery Facility (SG)

  • Phase 1:
  • New 64 MGD firm capacity transfer lift station to SG
  • Existing North McKinney Lift Station continues to convey

approximately 36 MGD flow to Wilson Creek RWWTP

  • New parallel force mains to transfer flows up to Phase 2
  • Phase 2:
  • Convert existing North McKinney Lift Station to transfer Phase 2

flows to SG

  • New SG transfer lift station and force main (part of evaluation)
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NORTH MCKINNEY LIFT STATION & TRANSFER FORCE MAIN

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Preliminary Flow Schematic

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NORTH MCKINNEY LIFT STATION & TRANSFER FORCE MAIN

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Next Steps

  • Final Engineering Services for:
  • Design a 64 MGD transfer lift station adjacent to the existing North

McKinney Lift Station ~ $27.5 Million construction cost

  • Allows for minimal impact to existing operations
  • Provides flexibility to continue pumping to Wilson Creek RWWTP
  • Design 4.5 miles of 48-inch (one or two) force mains from North

McKinney Lift Station to Sister Grove RWRRF ~ $15 to $27 Million construction cost

  • CMAR coordination task
  • Recommend for Board approval in September/October 2019
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Agenda

AGENDA

Discussion Items

  • G. Opportunity for Committee Members to Provide Feedback on

Wastewater Committee Meeting

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CLICK TO EDIT MASTER TITLE STYLE AGENDA

Discussion Items

  • H. Opportunity for Committee Members to Request Potential

Future Agenda Items

(No substantive discussion of items will take place at this time)

Adjournment

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