nrrrf erp project lessons nrrrf emergency response plan nc / awwa annual conference, raleigh...

NRRRF ERP Project Lessons

NRRRF Emergency Response Plan

NC / AWWA Annual Conference, RaleighNovember 17, 2015

Tim Woody, Resource Recovery Superintendent & Division DirectorWastewater and Reuse , CORPUD

Jack MoyerWater Security and Preparedness Practice Leader, AECOM

NRRRF ERP Project Lessons2

Presentation Overview

• Background on CORPUD and NRRRF

• Stuff Happens

• Project Background

• Project Methodology

• Lessons Learned

• Current Status and Next Steps


Background on CORPUD

• City of Raleigh Public Utilities Department

• 530,000 and growing service population

• Serving Raleigh, six other towns, and surrounding areas• Garner

• Wake Forest / Rolesville

• Knightdale / Wendell / Zebulon

3


Service Area Map

4

Wake Forest

Garner


Background on NRRRF

• Neuse River Resource Recovery Facility (Name recently changed)

• Largest of three CORPUD RRF

• Build in mid-1970’s at 30 mgd, many expansions and enhancements, now 60 mgd, under expansion to 75

• One of the two largest wastewater treatment plants in North Carolina

• Average daily flow 45 MGD (2014) and peak of 83 MGD (2014)

5


Current Treatment Process

• Fine screens

• Flow equalization

• BNR process

• Secondary and tertiary treatment

• UV disinfection

7


Current Reuse System

8

• 8 customers in Zebulon and 14 in Raleigh with a total of 32 metered connections

• 284 million gallons per year


Current Biosolids Process

• Belt thickened and centrifuged

• Aerobically digested

• Distributed as a liquid Class B or belt pressed and distributed as a composted product or a lime stabilized product

• Some applied on site

9


Smith Creek

Wake Forest

Little Creek

Zebulon

Other Two Plants

10


Stuff Happens - Tornados

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Hurricanes and Flooding

12


Winter Storms

13


Fuel Oil Spill to Sewer System

14


Reuse Tank Main Break

15


Plant Bypasses and Overflows

16


Biosolids Truck Accidents

17


Project Background

• CORPUD and NRRRF had many emergency plans, but no good hands-on plans for plant staff

• Needed to address emerging threats, such as wastewater influent contamination and active shooters

• Wanted to do a “grass-roots” project with strong plant staff involvement and minimal consultant assistance

18


Project Methodology - 1

• Formed a team comprised of Emergency Management Team members

• Led by Division Director, Plant Superintendent, Several Program Managers

• Hired consultant, with emergency preparedness experience but with a specific scope that included guidance and support

19


Project Methodology - 2

• 15 meetings, about 1/2 without the consultant

• Work products centered around a series of incident-specific response flow charts

• Small tabletop exercises were used to test the flow charts• Influent contamination

• Tornado

• Fire

• On-site chemical release

20


Lessons Learned - Initial

• A major commitment is needed to set aside the time for a project like this

• The involvement of internal staff is critical to get a product that really works for the plant

• We didn’t realize how deficient we were until we really drilled into it

• Some up-front work is needed to develop the process and it took a while to hit our stride

22


Lessons Learned – Flow Charts

• Flow chart plans are much more challenging than text plans and it took some iterations to get them right

• Flow charts provide much clearer direction and more valuable detail to the first in-house personnel responding to an incident

• It’s important not to get too far down in the weeds

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Lessons Learned – Other

• The little tabletop exercises were very helpful in testing the flow chart procedures

• The work developed provides an excellent framework

• Plan requires annual review and updating

• The plan is one tool in the response toolbox and needs to fit in with other CORPUD and City response plans

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Current Status and Next Steps

• Putting on the finishing touches

• Preparing to develop similar plans at the other PUD Facilities

• Striving for consistency

• Constantly changing

25


Tim Woody Jack Moyer

919-996-3712 919-461-1472

tim.woody@ jack.moyer@

raleighnc.gov aecom.com

Questions / Comments

nrrrf erp project lessons nrrrf emergency response plan nc / awwa annual conference, raleigh...

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tim woodyjack moyer919

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