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www.trcsolu*ons.com Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment Presented at: FiBh Interna*onal Symposium and Exposi*on on the Redevelopment of Manufactured Gas Plant Sites Des,n, Florida Presented by: John Rice, Alyssa Sellwood, Katherine Vater, Vince Buening and Colin Daining TRC Environmental Corpora*on Madison, WI, and Ann Arbor, MI Shayne Wiesemann DTE Energy Detroit, MI April 7, 2014

Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

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TRC engineer and scientist John Rice highlights TRC’s patented sediment capping technologies that address NAPL-containing sediment and bank soils at former manufactured gas plant (MGP) sites. The presentation was part of the Fifth International Symposium & Exhibition on the Redevelopment of Manufactured Gas Plant Sites (MGP 2014) .

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Page 1: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

www.trcsolu*ons.com  

Design  of  a  Remedy  to  Control  NAPL  Transport  and  Allow  for  Flexible  Redevelopment  

Presented  at:      FiBh  Interna*onal  Symposium  and  Exposi*on  on  the    Redevelopment  of  Manufactured  Gas  Plant  Sites  

Des,n,  Florida    

Presented  by:  

John  Rice,  Alyssa  Sellwood,  Katherine  Vater,  Vince  Buening  and  Colin  Daining  

TRC  Environmental  Corpora*on  -­‐  Madison,  WI,  and  Ann  Arbor,  MI    

Shayne  Wiesemann  DTE  Energy  -­‐  Detroit,  MI  

 

April  7,  2014  

Page 2: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

DTE  Broadway  Street  Former  MGP  

I.  Background  

II.  Inves,ga,on  

III.  Remedy  Design  

IV.  Construc,on  

Page 3: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

3  

I.    Background  

Page 4: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Former  Broadway  Street  MGP  ~2010    

Page 5: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Huron  River  Shoreline  Improvements/Restora,on      

Page 6: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

II.    Inves*ga*on  

• Sediment Cores - Bulk samples • Poke Testing • Corral Sampling

Page 7: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

•  Portable 2” Vibracore •  Hand-driven core •  Wildco Ponar Sampler

Sediment  Core Collec,on  Using  Vibracore    

Page 8: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

NAPL  in  Sediment  Cores  

Page 9: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Sheen  Producing  Sediment  from  Cores  

Page 10: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Poke  Tes,ng  

Page 11: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Sheen  Corral  Sampling  

Page 12: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Poten,al  Modes  of  Contaminant  Transport    

•  Ebulli,on-­‐facilitated  DNAPL  migra,on  from  sediment  

•  LNAPL  seepage  from  the  river  bank    

•  Erosion  of  hardened  asphal,c  tar  and  transport  as  solid  par,cles  

•  Erosion  of  tarry/oily  sediment  from  river  bank  

Page 13: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Conceptual  Model  of  NAPL  Transport    

Page 14: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

III.  Remedy  Design  

Sediment  Cap  Integrated  with  Upland  Removal    

Removal  of  Tarry  Sediment  

Page 15: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

NAPL  Trapping  Cap  Design    with  NAPL  Collec,on  Sump  

U.S.  Patents  Nos.  8,419,314  and  8,651,768    

Page 16: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Transmission  Layer  –  Crushed  Rock  

Page 17: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Containment  Layer  –  AquaBlokTM  

Page 18: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Rip  Rap  Armor  –  18-­‐inch  Field  Stone  

Page 19: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

IV.    Construc*on  Excava,on  of  Upland  Coal  Tar  Source  Area  

Page 20: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Excava,on  of  Sediment  and  Bank  Soil  

Page 21: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Placement  of  NAPL    Transmission/Collec,on  Layer  

Page 22: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Installa,on  of  the  NAPL  Collec,on  Sumps  –    Allows  Collec,on  of  Poten,al  LNAPL  and  DNAPL  

Page 23: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

AquaBlokTM  Containment  Layer  Being  Spread  over  Transmission  Layer  

Page 24: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Grading  Out  the  AquaBlokTM  Containment  Layer  

Page 25: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Capping  in  Progress  –  Transmission  Layer  Being  Laid  Down  inside  Double  Turbidity  Curtain  

Page 26: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Capping  in  Progress  –  Erosion  Control  and  Rip  Rap  

Page 27: Design of a Remedy to Control NAPL Transport and Allow for Flexible Redevelopment

Huron  River  aber  Site  Restora,on