WASTEWATER COMMITTEE MEETING May 30, 2019 CLICK TO EDIT MASTER - - PowerPoint PPT Presentation

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

WASTEWATER COMMITTEE MEETING May 30, 2019

CLICK TO EDIT MASTER TITLE STYLE AGENDA

Opening Remarks

A. 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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EXECUTIVE DIRECTOR/COMMITTEE CHAMPION STATUS REPORT

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Facility Flow Water Quality Total Bear Creek WWTP Buffalo Creek WWTP Farmersville WWTP 9 9 Floyd Branch WWTP 3 3 Muddy Creek WWTP 2 2 4 Panther Creek WWTP Rowlett Creek WWTP 5 4 9 Sabine Creek WWTP Seis Lagos WWTP 5 5 South Mesquite WWTP 3 1 4 Squabble Creek WWTP 1 1 Stewart Creek WWTP 1 1 Wilson Creek WWTP 3 3 29 10 39

Impacts of Recent Rain Events

3.03 4.9 6.75 7.28 1 2 3 4 5 6 7 8 April May MTD Recent Rainfall Exceeds Norms Normal Rainfall 2019 Actual

Violations shown in table below are for April and May (thru 5/28)

Agenda

AGENDA

Action Items

A. Consider Approval of Wastewater Committee Meeting Minutes – March 28, 2019 B. Consider Approval of Wastewater Committee Meeting Minutes – April 11, 2019 Recommend Approval of Wastewater Committee Meeting Minutes

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Agenda

AGENDA

Action Items

C. Consider recommendation

• n

authorizing award

• f

construction contract with Flow-Line Construction, Inc., in the amount of $408,350 on Project No. 501-0478-17, McKinney and Upper Cottonwood Creek Lift Stations Metering Improvements (Please refer to Administrative Memorandum No. 5412)

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• The parshall flume meter vault has significant

concrete corrosion creating safety concerns.

• Project No. 295 constructed a new meter station

with electromagnetic flow meters.

• It is now recommended to decommission the

parshall flume meter vault and reroute the gravity pipeline into the lift station wet well.

MCKINNEY AND UPPER COTTONWOOD CREEK LIFT STATIONS METERING IMPROVEMENTS CONSTRUCTION AWARD

Base Bid: Upper Cottonwood Creek Lift Station

• The existing flow meters at McKinney Lift Station

no longer function as designed.

• Bid was for new meters to be installed to provide

billing meters for the existing McKinney Lift Station. Additive Alternative: McKinney Lift Station

MCKINNEY AND UPPER COTTONWOOD CREEK LIFT STATIONS METERING IMPROVEMENTS CONSTRUCTION AWARD

• Project originally bid in October 2018. Rejected bids (Ad memo 5286) due

to disparity between engineer’s estimate and low bid.

• New meters will be installed with new McKinney Lift Station Improvements

(Project No. 502).

• Staff recommends award of base bid.

Bid Tabulation and Construction Award

Bidder Base Bid Bid Alternate Total Bid Recommendation Flow-Line Construction, Inc. $408,350 $337,160 $745,510 Lowest responsible bidder Recommended for Award Archer Western Construction, LLC $568,445 $163,620 $732,065 ENGINEER’S OPINION OF PROBABLE CONSTRUCTION COST $444,300 $267,700 $712,000

Agenda

RECOMMENDATION

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Agenda

AGENDA

Action Items

D. Consider recommendation

• n

authorizing award

• f

construction contract with Eagle Contracting, LP, in the amount of $14,193,000 for Project No. 301-0432-16, Floyd Branch Regional Wastewater Treatment Plant Process Optimization Improvements (Please refer to Administrative Memorandum No. 5410)

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FLOYD BRANCH RWWTP PROCESS OPTIMIZATION IMPROVEMENTS Background

• Wastewater flow from a portion of the City of Richardson is

treated at the Floyd Branch RWWTP.

• The existing trickling filter technology from the 1950’s – 1960’s

is outdated and needs to be replaced.

• New ballasted activated sludge technology optimizes treatment

process to meet permitted capacity of 4.75 MGD annual average and 10 MGD peak.

• Project

includes providing plant SCADA and substantial electrical improvements.

Floyd Branch Regional Wastewater Treatment Plant Process Optimization Improvements Project No. 301-0432-16 Administrative Memorandum No. 5410

New Magnetite Building Floyd Branch RWWTP

Legend

Treatment Units Wastewater Plant

Aeration Basin 1 (North) Aeration Basin 2 (South) Modifications Abandon Trickling Filter New Electrical Buildings Abandon Trickling Filter

FLOYD BRANCH RWWTP PROCESS OPTIMIZATION IMPROVEMENTS

Bidder Base Bid Bid Alternate Total Bid Recommendation Eagle Contracting, LP $14,193,000 $499,000 $14,692,000 Lowest responsible bidder Recommended for Award Archer Western Construction, LLC $14,426,100 $493,000 $14,919,100 ENGINEER’S OPINION OF PROBABLE CONSTRUCTION COST $12,354,800 $550,000 $12,904,800

BID TABULATION

• Lowest base bid recommended for award
• Bid alternate for jet mixing system not recommended for award
• Higher costs mainly due to contract duration and electrical costs

Agenda

RECOMMENDATION

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Agenda

AGENDA

Action Items

E. Consider recommendation

• n

authorizing execution

• f

Wastewater Regionalization Agreement with East Fork Partners, LLC, for the proposed East Fork Wastewater Treatment Plant located in Weston, Texas (Please refer to Administrative Memorandum No. 5413)

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WASTEWATER REGIONALIZATION AGREEMENT WITH EAST FORK PARTNERS

Background

• Sept 2017

East Fork Partners submitted permit application for 2.5 MGD WWTP to TCEQ to serve area near City of Weston

• Oct 2017

NTMWD requested from TCEQ contested case hearing on the East Fork Partners Permit application

• April 2018

NTMWD submitted draft agreement to East Fork Partners in attempt to settle protest of the permit application

• Jan 2019

TCEQ grants hearing request, concurrently referred matter to TCEQ Alternative Dispute Resolution (ADR)

• March – May 2019

NTMWD participates in ADR with East Fork Partners, City of Weston and TCEQ.

• May 2019

Agreement reached with East Fork Partners

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WASTEWATER REGIONALIZATION AGREEMENT COMPONENTS

• East Fork Partners (EFP) requests TCEQ add special condition to

final TPDES permit to include the Wastewater Regionalization Agreement

• EFP shall transfer the final permit and ownership of WWTP to City of

Weston

• EFP

provide notice to NTMWD prior to commencing initial construction and subsequent phased expansions. NTMWD will determine if connection to Regional Wastewater System is available and economically feasible

• Phase I of WWTP will be a non-permanent package WWTP 0.25

MGD

• Parties shall identify mutually agreeable third-party operator for

WWTP

• NTMWD will withdraw protest upon execution of agreement

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Agenda

RECOMMENDATION

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Agenda

AGENDA

Discussion Items

A. Regional Wastewater System and Upper East Fork Interceptor System Cost of Service projections B. Preliminary budget and personnel requests

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WASTEWATER COST OF SERVICE PROJECTIONS

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COST OF SERVICE PROJECTIONS

RWWS – 5 YEAR EXPENSE TREND

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$44.2 $46.7 $54.9 $58.3 $63.0 $- $10 $20 $30 $40 $50 $60 $70 2013-2014 2014-2015 2015-2016 2016-2017 2017-2018

Millions

6.11% 5.51% 17.64% 8.20%

UEFIS – 5 YEAR EXPENSE TREND

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$19.3 $21.7 $24.8 $28.7 $33.1 $- $5 $10 $15 $20 $25 $30 $35 2013-2014 2014-2015 2015-2016 2016-2017 2017-2018

Millions

15.69% 12.23% 14.47% 15.35%

MAJOR COST DRIVERS

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• Sister Grove WWTP construction
• New cost allocation methodology shifts support services

to non-water systems beginning in FY20

– Includes Administration, Engineering and Maintenance – Phased in over 5 years to minimize impact

• Yearly Cost Escalations

COST ALLOCATION 5 YR PHASE-IN (CURRENT $’S)

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IMPACTS

System FY 19 Budget 1st Year 2nd Year 3rd Year 4th Year 5th Year 5th Year Total RWWS $ 5.09 M $ 0.83 M $ 0.83 M $ 0.83 M $ 0.83 M $ 0.83 M $ 9.24 M UEF $ 1.17 M $ 0.55 M $ 0.55 M $ 0.55 M $ 0.55 M $ 0.55 M $ 3.92 M SW $ 1.51 M $ 0.18 M $ 0.18 M $ 0.18 M $ 0.18 M $ 0.18 M $ 2.41 M SS $ 2.27 M $ 0.41 M $ 0.41 M $ 0.41 M $ 0.41 M $ 0.41 M $ 4.32 M NET $10.04 M $ 1.97 M $ 1.97 M $ 1.97 M $ 1.97 M $ 1.97 M $ 19.89 M

*numbers may not tie due to rounding

CLICK TO EDIT MASTER TITLE STYLE SUPPORT SERVICES PHASE-IN

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Support Cost Allocation 5 YR Phase-In

• Reviewed and Improved Departmental Allocations
• Removed Support Departments from Water System
• Created a Support Services Fund starting in FY20

Results in an Estimated $9.9 M additional funds to be allocated to the non-water systems.

• Recommend a 5 YR phase-in to reduce the immediate

financial impact

COST REDUCTION EFFORTS (KEEP INCREASES UNDER 10%)

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• Operating budget reductions of $1M

– Operating Savings in FY20 and beyond dependent on future budget needs

• Deferred future capital projects to reduce the debt

issuance in the next few years

– Debt Savings in FY20 and FY21 but projects are just deferred to future years.

• Assumed additional reliance on Clean Water State

Revolving Fund (CWSRF) financing

– Lowered the cost of borrowing but CWSRF may not be fully available

COST REDUCTION EFFORTS (KEEP INCREASES UNDER 10%)

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• Finance explored multiple financing options to limit the

increases

– Level debt service – payments stay level throughout the term

» Cheapest option but doesn’t limit increases during the 10 year COS period

– Structured debt – with Structured Principal only

• Defers principal only to fit within defined cash flow constraints

» A middle ground option that keeps costs down during the 10 year COS period and moderately adds to the overall costs long term

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COST REDUCTION EFFORTS (KEEP INCREASES UNDER 10%) REGIONAL WASTEWATER SYSTEM

Financing Options Additional Long Term Cost Highest % Increase in COS Level Debt Service $0 18.4% Structured w/o CAPI $10M 12.9%

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BUDGET SUMMARY

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 7

• 7

65 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

• 1
• 6
• 7

23 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

FY20 PERSONNEL REQUESTS – PRELIMINARY

Wastewater Ops (11)

New Facility-Expansion WW Mechanic (2) Wilson Creek WWTP New Facility-Expansion Mechanic’s Assistant Wilson Creek WWTP New Facility-Expansion Assistant RWWS Manager Wilson Creek WWTP New Facility-Expansion Maintenance Supervisor Wilson Creek WWTP New Facility-Expansion WW Plant Operator III (2) Wilson Creek WWTP New Facility-Expansion WW Plant Operator II (2) Rowlett Creek WWTP New Facility-Expansion WW Plant Operator III Small Plants New Facility-Expansion Professional Engineer (General) Small Plants

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WASTEWATER OPERATIONS PERSONNEL

RWWS UEFIS SS Requested Personnel $632 K $0 $178 K 3% Merit Adjustment $227 K $39 K $121 K 2% Market Adjustment $151 K $26 K $81 K Shift Differential/ Turnover $(280) K $160 K $177 K Total Increase $730 K $225 K $557 K

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WASTEWATER Expenditures by Category

$10 $20 $30 $40 $50 $60 $70 $80 $90 $100

RWWS UEF SS FY19 Bdgt $71 $36 $42 FY19 Amnd $71 $36 $42 FY20 Bdgt $78 $39 $45

Millions

$3 M Incr Debt pmt 8% Incr $1 M Incr Debt pmt $.5 M New Personnel & Adjustments $.4 M New Support Fund 9.9% Incr $6.5 M Incr Debt pmt 0% 0% 7% Incr 0%

CLICK TO EDIT MASTER TITLE STYLE AGENDA

Discussion Items

C. Muddy Creek Wastewater Treatment Plant Expansion to 15 MGD, Master Plan

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• Serves Wylie, Murphy and

Wylie NESUD Current Capacity:

• Permitted AADF = 10mgd;
• Permitted P2HF = 30mgd

Expansions:

• Permitted to expand to

20mgd AADF/ 60mgd P2HF in 5mgd increments

• Current Projects

– Odor Control Improvements and Backup generator

MUDDY CREEK WWTP EXPANSION MASTER PLAN Background Information

Muddy Creek WWTP

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Project Scope

• Condition Assessment of all existing major assets

– Assess condition down to each treatment unit level – Input from plant staff and historical maintenance – Assess criticality of failure and consequence of failure with scores

• Evaluation of all Process Facilities

– Develop hydraulic model and process model for various flow conditions – Identify deficiencies and compliance with TCEQ – Review and update O&M. Define permit modifications to meet future regulatory requirements

• Site Master Planning

– Evaluate and recommend updates to support facilities – Evaluate facilities for safety, access, workspace, and future needs – Evaluate SCADA, Electrical and I&C and recommend improvements

MUDDY CREEK WWTP EXPANSION MASTER PLAN Objective: Develop comprehensive master plan for phased improvement projects to meet future capacity needs, facility upgrades, and regulatory requirements

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Agenda

AGENDA

Discussion Items

D. McKinney Lift Station Improvements

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MCKINNEY LIFT STATION IMPROVEMENTS Background

• Originally constructed in 1986
• Conveys flow from the Wilson Creek Basin of the UEFIS directly

into Wilson Creek RWWTP (Firm Capacity 30 MGD)

• Station has limited expansion capacity in current configuration
• Lacks usable space to develop operational flexibility

MCKINNEY LIFT STATION IMPROVEMENTS Project Scope

• Initial capacity of 62 MGD, with expansion capability to 82 MGD
• Accommodates plant waste drain and basin drainage to wet

well by gravity

• Includes:
• New force main into Wilson Creek RWWTP headworks
• Dedicated electrical building and back-up generator
• Odor control system
• Bid opening May 31, 2019
• Engineer’s OPCC is $29.9 million

Agenda

AGENDA

Discussion Items

C. Opportunity for Committee Members to Provide Feedback on Wastewater Committee Meeting

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CLICK TO EDIT MASTER TITLE STYLE AGENDA

Discussion Items

• D. 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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