WASTEWATER COMMITTEE MEETING November 15, 2018 AGENDA I. CALL TO - - PowerPoint PPT Presentation

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

WASTEWATER COMMITTEE MEETING November 15, 2018

AGENDA

I. CALL TO ORDER II. 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 III. ACTION ITEMS A. Consider Approval of Wastewater Committee Meeting Minutes – September 18, 2018 B. Consider Recommendation on Adoption of Resolution No. 18-57 Rejecting All Bids and Authorizing Rebid of the Muddy Creek Regional Wastewater System, Muddy Creek Wastewater Treatment Plant, Aeration Basin, Odor Control, and Backup Power Improvements, Project No. 310-0450-17 (Please refer to Administrative Memorandum No. 5283) C. Consider Recommendation on Adoption of New Policy for Regional Wastewater System Customer (RWWS) to Become Member of the RWWS D. Consider Recommendation on Amendment to District Policy No. 22 - Customer City Policy for NTMWD Regional Wastewater Treatment System and NTMWD Upper East Fork Regional Interceptor System IV. DISCUSSION ITEMS A. Upper East Fork Regional Interceptor System Sloan Creek Interlocal Agreement for Regional Wastewater Lift Station and Force Main Project B. Rowlett Creek Regional Wastewater Treatment Plant Operations Building Design C. White Rock Creek Force Main Contractor Damage Settlement D. White Rock Creek Sanitary Sewer Overflow E. Seis Lagos Utility District Special Facility Contract Termination F. Wastewater System Overview G. Kaufman County Feasibility Study H. Settlement Agreement for Permit Protest for Weston I. Opportunity for Committee Members to Provide Feedback on Wastewater Committee Meeting J. Opportunity for Committee Members to Request Potential Future Agenda Items (No substantive discussion of items will take place at this time) V. ADJOURNMENT

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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

Agenda

AGENDA

Action Items

A. Consider Approval of Wastewater Committee Meeting Minutes – September 18, 2018 Recommend Approval of Wastewater Committee Meeting Minutes

Agenda

AGENDA

Action Items

B. Consider Recommendation on Adoption of Resolution No. 18- 57 Rejecting All Bids and Authorizing Rebid of the Muddy Creek Regional Wastewater System, Muddy Creek Wastewater Treatment Plant, Aeration Basin, Odor Control, and Backup Power Improvements, Project No. 310-0450-17 (Please refer to Administrative Memorandum No. 5283)

Agenda

RECOMMENDATION

Agenda

AGENDA

Action Items

C. Consider Recommendation on Adoption of New Policy for Regional Wastewater System Customer (RWWS) to Become Member of the RWWS

NEW POLICY FOR REGIONAL WASTEWATER MEMBERSHIP

Bottom line up Front

• Recommendation from April Workshop to create new Policy for existing

customer to become a member of the RWWS and UEFIS

• No current policy defines requirements for a current customer of RWWS or

UEFIS to become member these systems

• District Policy 22 defines how to become a customer of RWWS/UEFIS
• Some criteria exist in the RWWS and UEFIS contracts to become a member
• Acceptance as Member in RWWS does not serve as the basis for

consideration for membership in any other District facility, system, or service

• Per contract, customer charges 20% higher than members

CURRENT CRITERIA TO BE MEMBER OF REGIONAL WASTEWATER

(Per Article VII, section 8.02 of current RWWS Contract)

• Formal request for membership
• Engineering studies funded by applicant to determine
• Estimated flows for next 5 years
• Any new facilities or upgrades required based on estimated flows and associated costs
• Board call a hearing, notifying all RWWS Members to review request
• Board determine if City shall become a RWWS member
• New Member agrees to minimum payments based on minimum flows used to

calculate RWWS payment

• Minimum flows cover payment for debt service and O&M

NEW POLICY FOR REGIONAL WASTEWATER MEMBERSHIP

New Policy inter-dependence

• Section of Policy 22 – requires amending:

Customer: “ A customer may include an individual, corporation or portion of a city. Any city requesting service for its entire city limits and future city limits MUST apply as MEMBER city, which would come under the provisions of the member city contracts and the customer policy would not be applicable.”

• No other policies are impacted with proposed new policy
• Delete sentence as indicated, so any future member of RWWS/UEFIS must be

a customer first

NEW POLICY FOR REGIONAL WASTEWATER MEMBERSHIP

New Policy Minimum Criteria

• Customer of RWWS and or UEFIS for a minimum of 5 years
• WW service should be provided for entire city limits and future city limits
• If any city owned WWTPs exist, NTMWD must operate
• City supports district regionalization initiatives

NEW POLICY FOR REGIONAL WASTEWATER MEMBERSHIP

New Policy Evaluation Factors

• Financial impacts to other System Members
• Impact to System credit or bond rating
• Financial or engineering impact to system in general
• Does city have plan to encourage use of collection system to reduce reliance
• n septic systems
• Current population of approximately 10,000
• City’s WW contributes to District’s reuse and reclaimed water

** Acceptance as Member in RWWS does not serve as the basis for consideration for membership in any other District facility, system, or service

NEW POLICY FOR REGIONAL WASTEWATER MEMBERSHIP

Way Forward

New Policy

• Recommendation from WW Committee on adoption of New Policy, November
• Recommendation from Policy Committee on adoption of New Policy, December
• Both WW Committee and Policy Committee recommend adoption of New

Policy and approval at Full Board at December meeting. Melissa Membership

• City of Melissa follows through with commitments,
• Establish financial transition from Customer to Member
• If board approves, conduct hearing and notify all RWWS Members in January
• Staff develop recommendation to Board for City of Melissa Membership in

RWWS and UEFIS Feb/March

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Recommendation

• C. Consider Recommendation on Adoption of New Policy for

Regional Wastewater System (RWWS) Customer to Become Member of the RWWS

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Action Items

• D. Consider Recommendation on Amendment to District Policy 22

– Customer City Policy for NTMWD Regional Wastewater System (RWWS) and Upper East Fork Interceptor System (UEFIS)

AMENDMENT DISTRICT POLICY 22

Customer City Policy for NTMWD RWWS and UEFIS

• Established April 1996
• Establishes basic rules for providing customer (non-member) WW service
• Section II. Definitions current states
• “ A customer may include an individual, corporation or portion of a city. Any

city requesting service for its entire city limits and future city limits MUST apply as MEMBER city, which would come under the provisions of the member city contracts and the customer policy would not be applicable.”

• Amendment deletes the sentence above in Red to be consistent with the

recommended New Policy for Regional Wastewater System (RWWS) Customers to Become Member of the RWWS

• No other changes recommended to Policy 22

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Recommendation

D. Consider Recommendation on Amendment to District Policy 22 – Customer City Policy for NTMWD RWWS and UEFIS

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Discussion Items

A. Upper East Fork Regional Interceptor System (UEFIS) Sloan Creek Interlocal Agreement (ILA) for Regional Wastewater Lift Station and Force Main Project Recommending for December approval

ILA WITH CITY OF ALLEN AND FAIRVIEW: SLOAN CREEK PROJECT Background

• Additional capacity is needed to serve Town of Fairview and City of

Allen growth

• Excess capacity does not exist within UEFIS to meet future needs
• Allen and Fairview approached NTMWD with concept to cost share

improvements for new lift station and force main (New Point of Entry into UEFIS)

• New Point of Entry avoids capital projects to convey flows thru

Cottonwood Creek Trunk Sewer, expand Cottonwood lift station and conveying flows to Wilson Creek WWTP solely

• New Sloan Creek Lift Station and Force Main convey flows to Wilson

Creek Lift Station allowing flows to Wilson Creek WWTP or Planned Sister Grove WRRF

PROPOSED SLOAN CREEK LIFT STATION AND FORCE MAIN

ILA WITH CITY OF ALLEN AND FAIRVIEW: SLOAN CREEK PROJECT Elements of the ILA

Per the interlocal agreement,

• Fairview and Allen will jointly fund the cost for design and construction
• f the proposed lift station (~$9.4M)
• NTMWD will fund the cost for the force main design and construction,

including the cost of ROW for the lift station and force main. (~$10.1M)

• NTMWD will oversee the design and construction of the proposed lift

station and force main

• NTMWD will own and operate the lift station and force main as part of

the UEFIS once project complete

PROPOSED SLOAN CREEK LIFT STATION AND FORCE MAIN

Compare scope and estimated cost of alternative conveyance of City of Allen Flows to Wilson Creek RWWTP Summary:

• Alternate to building Regional Sloan Creek Lift Station & Force Main
• Parallel/upsize 21,800LF of Cottonwood Creek Interceptor
• Upsize/Build 13mgd Upper Cottonwood Creek Lift Station
• Parallel/upsize 1,600LF of Cottonwood Forcemain and Rowlett

Cottonwood Transfer Sewer

• Estimated Cost ~$25.3 Million

PROPOSED SLOAN CREEK LIFT STATION AND FORCE MAIN Alternative Comparison to Convey Flows

ALTERNATIVE TO SLOAN CREEK LIFT STATION AND FORCE MAIN

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Discussion Items

B. Rowlett Creek Regional Wastewater Treatment Plant Operations Building Design

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Discussion Items

C. White Rock Creek Force Main Contractor Damage Settlement

WHITE ROCK CREEK FORCE MAIN CONTRACTOR DAMAGE SETTLEMENT

• Sanitary Sewer Overflow occurred
• n June 27, 2018
• Cause was contractor damaging
• ur pipeline
• Pipeline repairs completed on day

damage occurred

• Efforts to mitigate environmental

impact by removing wastewater from White Rock Creek and discharging into Dallas collection system had approximate duration

• f 2 weeks
• Costs to repair and remediate

tabulated at $69,310.26

Plano MH SSO location Lower White Rock Creek LS Damage

• ccurred

Pumped from White Rock Creek

WHITE ROCK CREEK FORCE MAIN CONTRACTOR DAMAGE SETTLEMENT

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Discussion Items

D. White Rock Creek Sanitary Sewer Overflow

White Rock Creek Sanitary Sewer Overflow

• Notified August 10, 2018 of SSO near previous location,

but not related

• By end of day capturing wastewater and pumping into

Plano manhole

WHITE ROCK CREEK SSO

• Isolate parallel forcemains on Sept 19
• Cut open pipeline to install valves, clean,

CCTV and measure for liner

• Liner fabrication ongoing, expect

complete next week

• Install liner week following Thanksgiving,

if weather allows

• Repair complete early December
• Estimated total cost approximately $500k,

funded from reserve for maintenance

• Pure Inspection of parallel lines planned

https://www.youtube.com/watch?v=FY_wE71GRyk

Agenda

AGENDA

Discussion Items

E. Seis Lagos Utility District Special Facility Contract Termination

SEIS LAGOS UTILITY DISTRICT FACILITY CONTRACT TERMINATION Background

• Seis Lagos Utility District

(SLUD) current Water and Sewer System customer

• NTMWD Operates and Maintains SLUD 0.25 MGD WWTP
• Effluent flows into Lavon Lake
• SLUD had agreement with WNE for future WW service; WNE upsized

collection system to accommodate SLUD flows which would go to Muddy Creek WWTP

• NTMWD Board approved contract with SLUD and NTMWD to sell

bonds for project using Special Facility Contract in September 2018

• SLUD has decided to rehabilitate their existing WWTP
• SLUD provided Notice of Termination for contract to NTMWD Nov. 7
• NTMWD will work with SLUD on WWTP rehabilitation efforts

Agenda

AGENDA

Discussion Items

F. Wastewater System Overview

Wastewater System Overview

• NTMWD wastewater systems/cities served
• Major capital projects
• Recent operations projects
• Recent flows
• Charge structure for members and customers

Entities Served

• Serve 24 communities
• Approximately 1-million

North Texas residents

Facilities

• Over 250 miles of large

diameter pipe to transfer from communities to regional treatment facilities

• 13 Treatment plants
• Total capacity of +150 MGD

WASTEWATER SYSTEM

TCEQ Designated Regional Provider in East Fork of Trinity Basin Regional Service Facilitated 15 WWTPs being taken

• ut of service

WASTEWATER REGIONALIZATION

REGIONAL WASTEWATER SYSTEM

• Regional WWTP/Capacity
• Wilson Creek WWTP

56.00 MGD

• South Mesquite WWTP

33.00 MGD

• Rowlett Creek WWTP

24.00 MGD

• Floyd Branch WWTP

4.75 MGD TOTAL 117.75 MGD

• Sewer System WWTP
• Number of Sewer System Plants in

Operation: 9

• Total Sewer System Capacity: 34 MGD
• Total Wastewater Treatment

Capacity: 151.45 MGD

Department (City located) Avg. Capacity

• No. O&M

Positions FY 19 Budget Communities Served Wilson Creek WWTP (near Allen,

Fairview, Lucas)

56 mgd

(being expanded to 64 mgd)

62 $19.2M Allen, Anna, Fairview, Frisco, Lucas, McKinney, Melissa, Parker, Plano, Princeton, Prosper, Richardson Rowlett Creek WWTP

(East Plano)

24 mgd 26 $8.4M Floyd Branch WWTP

(Richardson)

4.75 mgd 7 $1.9M Richardson Mesquite WWTP

(Mesquite)

33 mgd 35 $11.3M Forney, Heath, Mesquite, Rockwall, Seagoville Debt Service $29.8M TOTAL 130 $70.7M

Regional Wastewater System

Department

(City located)

Avg. Capacity

• No. O&M

Positions FY19 Budget Communities Served Panther Creek WWTP (Frisco) 10 mgd 18 $8.8M Frisco Stewart Creek WWTP (Frisco) 5 mgd (being

expanded to 10 mgd)

18 $9.3M Muddy Creek WWTP (Wylie) 10 mgd 18 $6.9M Wylie, Murphy Sabine Creek WWTP (near

Royce City)

1.5 mgd (being

expanded to 3 mgd)

9 $2.5M Royce City, Fate Buffalo Creek WWTP (Rockwall) 2.25 mgd $1.8M Rockwall Squabble Creek WWTP

(Rockwall)

1.2 mgd $510k Seis Lagos WWTP ( north Wylie) .25 mgd $200k Seis Lagos Farmersville WWTP (Farmersville) .225 mgd $374k Farmersville Lavon WWTP (Lavon) .25 mgd $291k Lavon TOTAL 63 $30.7M

Sewer System Plants

A. Upper East Fork Interceptor System B. Muddy Creek WWTP Conveyance System C. South Mesquite Regional WWTP Conveyance System D. Sabine Creek WWTP Conveyance System

Conveyance System

Department FY19 Budget Communities Served Upper East Fork IS $35.8M Allen, Anna, Fairview, Frisco, Lucas, McKinney, Melissa, Parker, Plano, Princeton, Prosper, Richardson Forney Int $478k Forney Lower East Fork Int $1.8M Mesquite, Seagoville Muddy Creek Int $496k Murphy, Wylie Parker Creek Int $479k Fate, Royse City Sabine Creek Int $322k Royse City Buffalo Creek Int $3.0M Forney, Heath, Rockwall McKinney Int $204k McKinney Mustang Creek Int $1.6M Forney Parker Creek Parallel Int $124k Fate TOTAL $44.3M

All conveyance O&M positions assigned to UEFIS with cost reimbursement by other departments. FY 19 budget includes 19 positions in UEFIS.

Conveyance System

Major Capital Projects

• Sabine Creek WWTP Expansion to 3 mgd
• $9.2M, anticipated finish early 2019
• Stewart Creek WWTP expansion: Expand from 5 mgd to 10 mgd
• $62.6M construction, anticipated finish in early 2019
• Wilson Creek RWWTP Expansion to 64 mgd
• $53.4M construction, anticipated finish summer 2019
• Rowlett Creek RWWTP Peak Flow Management, Phase 1
• Add 17.5 mgd peak flow capacity
• $47.3M
• Anticipated finish April 2020
• Sister Grove RWRRF
• Permitting and preliminary design ongoing.
• Anticipate Phase 1 construction 2020-2023

Recent Operations Projects

• CMOM Implementation
• Condition Assessment Program
• Wastewater System As-Builts and Easements
• Muddy Creek WWTP Headworks Container Building Access Platform
• Wilson Creek RWWTP Operations Building Repairs
• Wastewater Operator Licensing Training

WASTEWATER SYSTEM AND INITIATIVES

Condition Assessment Program

Manhole Inspections and Multi-Sensor Inspection and Cleaning of Pipelines

• Year 1: 104,630 LF of pipe, 286

manholes

• Year 2: 66,642 LF of pipe, 211

manholes

• Proposed Year 3: 26,602 LF of force

main inspection, 28,916 LF of gravity pipe inspection FY 19 Point Repairs for locations with Remaining Useful Life 0-2 Years CIP Nominations for Remaining Useful Life 3-10 Years

Wastewater System As-Builts and Easements

Project

• Review of existing as-built and electronic

easement data for quality and completeness

• Pairing of as-built and easement

documents by pipeline

• Populated GIS tables with easement width,

pipeline installation date, data source quality and county abstract reference information

Benefits

• GIS mapping provides easement extent

layer, link to as-built drawings.

• Will be used to estimate right-of-way

maintenance needs

• Improved GIS mapping provides

information to field staff

Background

• Operators routinely service headworks

solids conveyor located 16 feet above the floor

• Previously used ladder and held onto

conveyor to perform maintenance

• Improved access was needed to meet

safety requirements

Project

• Engineered by consultant
• Access platform fabricated by NTMWD

maintenance services

Benefits

• Reduces significant fall hazard for

personnel

• Improves efficient access to solids

conveyor for maintenance or repair

Muddy Creek WWTP Headworks Container Building Access Platform

Wilson Creek RWWTP Operations Building Repairs

Project Background

• Operations Building originally

constructed in 1987 and short term improvements to address safety issue after employee injured by falling in Control Room

Benefits

• Addressed immediate flooring

safety issue

• Provided enclosed space for

SCADA Control Room and lead

• perators
• Employee morale boost from

improved working conditions

Wastewater Operator Licensing Training

• Additional training courses to be
• ffered in 2019: Water Utility

Safety, Water Utilities Calculations

Benefits

• Quality of instruction
• Opportunity for staff to interface

with peers in other departments

• Customize material to NTMWD

facilities

• Ability to offer on as-needed basis

for new hires to seek licensure

• Future service for communities

served

• Five WW employees

instructors

• NTMWD training courses

certified by TCEQ

– Basic WW Operations – Operation of Activated Sludge Plants – Wastewater Treatment – Wastewater Laboratory – Wastewater Collections

• 2018: Nine training classes

conducted in 2018 for 78 NTMWD employees

Recent Rainfall Contributed to Highest Monthly Flows Ever Experienced

NTMWD experienced 43 peak 2 hour flow violations at 8 plants in October 2018.

Communities Charged Based on Flows

Charge structure for members of Regional Wastewater System and participants of Sewer System (conveyance and treatment)

• Proportional cost sharing
• Flow allocation annual process
• Historical flow variability and projected flows
• Flow contribution percentage example

(FY18 budget, FY18 actual, FY 19 budget) Charge structure for customers (RWWS and UEFIS)

• Unit rate established for each FY and each system
• $/1,000 gal = 1.2 x (System total FY budget/ Budgeted flows of member &

customer cities)

• Charged based on actual contribution
• Charges assessed to customers deducted from total expenditures prior to

allocation of cost to members

Allen, $3,588,023 Frisco, $1,483,066 McKinney, $7,211,743 Plano, $12,981,674 Princeton, $345,593 Prosper, $701,799 Richardson, $3,059,823

Annual Billing Actuals

Allen 12% Frisco 6% McKinney 25% Plano 42% Princeton 1% Prosper 2% Richardson 12%

Annual Flow Actuals

Total cost: $31,410,835

Upper East Fork Interceptor System FY 18 Actuals

Total flow: 22.9 BG

Costs Proportionally to Flow Contribution

• Budgeted flows established in March 2017 and

monthly charges established based on estimated percent flow of system and dollars budgeted

• Began monthly monitoring in October 2017
• Amended flow and dollars submitted in March

2018 and communicated to cities in June 2018

• October 2018 True-Up process
• Use actual annual flow volumes to determine

communities percent contribution

• Use actual costs incurred to determine annual final

charges

• True-up charges relative to original budgeted values

Annual Flow Allocation Process

Example: FY 18

Budget Monthly Monitoring Amended Budget Monthly Monitoring True-Up

Annual Wastewater System Flow Totals

34 37 37 39 34 32 31 36 31 33 33 33 39 43 38 40

5 10 15 20 25 30 35 40 45 50 FY07 FY08 FY09 FY10 FY11 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 Annual Volume Treated (BG)

Budgeted Actual

Community FY 18 Budget FY 18 Amended FY18 Actual FY 19 Budget Allen 12.3% 11.7% 12.0% 11.7% Frisco 5.7% 6.2% 6.3% 6.2% McKinney 24.5% 24.2% 24.6% 24.2% Plano 43.1% 42.5% 41.6% 42.5% Princeton 1.2% 1.4% 1.3% 1.4% *Prosper 2.4% 2.3% 2.3% 2.3% Richardson 10.7% 11.7% 12.0% 11.7%

* Prosper flow is based on contract minimum

Flow Contribution Percentage is Critical to Flow Projections

Example: Upper East Fork Interceptor System

Agenda

AGENDA

Discussion Items

• G. Kaufman County Feasibility Study

Forney, Terrell, Kaufman & Crandall participated with NTMWD in a feasibility study to provide regional wastewater service and potentially to others in Kaufman County Study included:

• Population & flow projections
• Evaluate existing systems and improvements for Status Quo
• Evaluate four regional alternatives
• Life cycle analysis of Status Quo and four alternatives

KAUFMAN COUNTY REGIONAL WASTEWATER FEASIBILITY STUDY OBJECTIVES

Key Factors to Consider:

• Status Quo is most economical
• Conveyance cost to regional facility is large component
• Only 4 cities; more may help share cost
• Lower interest rate, faster/denser growth, changing regulations, or

hybrid (2 cities regionalize first) may change outcome

• NTMWD will provide Final report to participating Cities

KAUFMAN COUNTY REGIONAL WASTEWATER FEASIBILITY STUDY FINDINGS

Alternative Capital Cost Present Worth

Status Quo $79.5M $272.9M Location 1 $340.6M $569.8M Location 2 $277.2M $471.5M Location 3 $285.7M $463.8M Location 4 $356.3M $547.6M

• 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

Agenda

AGENDA

Discussion Items

H. Settlement Agreement for Permit Protest for Weston

Agenda

AGENDA

Discussion Items

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

Adjourn Executive Session

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Discussion Items

J. Opportunity for Committee Members to Request Potential Future Agenda Items

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

Adjournment