CITY OF LIVINGSTON

Water Reclamation Facility Upgrade

March 30th, 2016

Upgrade and Improvements Project

PROJECT OVERVIEW and ENVIRONMENTAL ASSESSMENT

PRESENTATION OVERVIEW

CITY OF LIVINGSTON WRF UPGRADE

• Introduction to me, overview of design team

• Project History

• Project Overview

– Need for the Project

– Goals

– Challenges

WHO AM I?

• P.E. in Montana

• 2001 M.S. in Civil & Environmental Engineering from University of Wisconsin-Madison, specializing in wastewater treatment plant design and project delivery

• 15 years of experience designing wastewater treatment plants, including permitting, funding procurement assistance, planning, design, construction admin, startup and optimization

Scott Buecker, Project Manager

Project Team Overview

Advanced Engineering and Environmental Services, Inc

• Civil/Environmental Consulting Engineering Firm specializing in water, wastewater and stormwater

• Founded 25 years ago in Grand Forks, ND

• Now ~ 315 employees in Montana, the Dakotas, Minnesota, Wisconsin, and Utah

• Teamed with TD&H for general civil, survey, geotech & structural – as well as institutional knowledge of the City and the project

PROJECT TEAM & WHO IS AE2S?

PROJECT HISTORY

In the works since 2012…

• In Capital Improvements Plan since 2012

• Preliminary Engineering Report was authorized by the Commission on August 5th, 2012

• Environmental Assessment with no significant impact conducted in 2013

• Funding has been reserved, with on-going efforts to increase the grant portion

PROJECT OVERVIEW

WRF Upgrade and Improvements

1. Septage Receiving Station2. Headworks:

I. Addition of a 2nd Grinder and ScreenII. Access improvements to Grit Processing UnitIII. Ventilation rehabilitation

3. Replacement of Primary Clarifiers, Rotating Biological Contactors and Secondary Clarifiers with Sequencing Batch Reactors

4. Flow Equalization5. UV Disinfection Improvements6. Waste Sludge Thickening7. Replacement of Anaerobic Digesters with Aerobic Digesters8. Addition of Biosolids Composting Unit9. Safety Improvements10. Modernized Monitoring and Control System11. New Equipment and Control Building12. New Backup Generator and electrical distrubiton system

Total Plant Rehabilitation

PROJECT OVERVIEW

Second Grinder and Screen

PROJECT OVERVIEW

Rotating Biological Contactors (RBCs)

PROJECT OVERVIEW

WWTP Upgrade and Improvements

PROJECT OVERVIEW

Effluent and Anaerobic Digester, Flare

OVERARCHING GOALS

Comprehensive Improvement Project

1. Improve the quality of the City’s effluent

a. Comply with new Ammonia discharge limits

b. Comply with disinfection requirements

2. Provide the City with a design that will provide functional, safe and easily operated treatment facilities that cover the City’s needs for the next 25 years

PROJECT CHALLENGES

Hurdles, not barriers…

1. Funding “optimization”

2. Rapid Delivery Schedule

3. Maintenance of existing plant operation and performance, compliance with current permit

4. Construction on a Superfund Site

– Contaminated soils and groundwater

5. Competitive Bidding Environment

PROJECT SCHEDULE

Not a rush yet, but no extra slack either…

1. Finalize RRGL, TSEP and SRF funding applications ASAP

2. Preliminary Design Spring 2016

3. Final Design through remainder of 2016

4. Bid in February or March 2017

5. Ground-breaking in late spring of 2017

6. Final Completion estimated in summer of 2018

2016 2017

1 2 3 4 5

ENVIRONMENTAL ASSESSMENT

Overall, a benefit to the Environment

1. Significant improvement in the quality of the water that will be discharged to the Yellowstone

• Improved conditions for fish and the public

2. Safer working environment for City employees

• Accessibility improvements

• No more flammable/explosive gases produced on site, reduced odors

ENVIRONMENTAL ASSESSMENT

Some Impacts

1. Minor increase in noise, dust and traffic during construction

2. Contaminated Soils

3. Increase in energy requirements

4. Very small portion of the plant site lies within the 100-yr floodplain

ENVIRONMENTAL ASSESSMENT

Floodplain Map

ENVIRONMENTAL ASSESSMENT

Key Mitigation Measures

1. Contaminated Soils Workplan

2. Stormwater Pollution Prevention Plan (SWPPP)

3. Dust can be mitigated with regular spraydown, IF it appears that it will have offsite impacts

4. Floodplain permit with Park County as necessary

– Depends on the final design/impacts around UV system

ENVIRONMENTAL ASSESSMENT

Environmental Checklist

Posted on the website for public review: www.livingstonwrf.com:

PROJECT COMMUNICATION

Transparent, Collaborative Environment

1. Several meetings with PWD and WWTP staff already to dial in the scope

2. Scope includes multiple City Commission tours/meetings/presentations

3. Project delivery plan includes creation and maintenance of project website for public involvement: www.livingstonWRF.com

4. Project email where you can provide feedback on the project: livingstonwrf@ae2s.com

QUESTIONS?