L OWRY L ANDF I L L SUPE RF UND SI T E COMMUNI T Y ME E - PowerPoint PPT Presentation

L OWRY L ANDF I L L SUPE RF UND SI T E COMMUNI T Y ME E T I NG Ma y 10, 2017

GRE E T I NG AND I NT RODUCT I ONS  I ntro duc tio ns  Sa fe ty a nd c o mfo rt  F a c ility ne e ds: We ha ve the ro o m until 8:30  Sig n in she e ts – spe a ke rs  Ag e nda – Ple a se ho ld q ue stio ns until a fte r pre se nta tio ns  Co mme nt c a rds

SUPE RF UND BACK GROUND AGE NDA  Wha t is Supe rfund?  T wo type s o f Supe rfund pro g ra m a c tio ns  T he Supe rfund pro c e ss  Who pa ys?  Co mmunity I nvo lve me nt  Additio na l c o nta c t info rma tio n

WHAT I S SUPE RF UND? Goals of Supe r fund:  Pro te c t huma n he a lth a nd the e nviro nme nt b y c le a ning up a b a ndo ne d o r unc o ntro lle d ha za rdo us sub sta nc e site s  I nvo lve c o mmunitie s in the c le a nup pro c e ss  Ma ke re spo nsib le pa rtie s pa y fo r the c le a nups

Supe r fund L aw:  T he Co mpre he nsive E nviro nme nta l Re spo nse , Co mpe nsa tio n, a nd L ia b ility Ac t (CE RCL A), info rma lly c a lle d Supe rfund, wa s e sta b lishe d b y Co ng re ss in 1980 a nd a me nde d in 1986.

SUPE RF UND PROGRAM ACT I ONS T wo type s of Supe r fund ac tions:  Re mo va l Ac tio ns  Sho rte r te rm re spo nse s a c tio ns to a ddre ss mo re imme dia te thre a ts  Re me dia l Ac tio ns  Na tio na l Prio rity L ist (NPL ) site s

 Supe r fund Pr oc e ss Ac r onyms  PA/ SI: Pre limina ry Asse ssme nt/ Site I nspe c tio n  NPL : Na tio na l Prio ritie s L ist  R S: Re me dia l I nve stig a tio n/ I/ F F e a sib ility Study  R OD: Re c o rd o f De c isio n  R A: Re me dia l D/ R De sig n/ Re me dia l Ac tio n

T HE SUPE RF UND PROCE SS How doe s a site be c ome liste d on the NPL ?  E PA ma y le a rn a b o ut a site fro m o the r fe de ra l a g e nc ie s, sta te s, lo c a l g o ve rnme nts, trib e s o r priva te c itize ns.  E PA do e s a site a sse ssme nt a nd de te rmine s whe the r the c le a nup will re q uire a sho rt te rm a c tio n o r lo ng te rm a c tio n. E PA e va lua te s site s using E PA's Ha za rd Ra nking Syste m (HRS) to sc o re site s.  E PA de te rmine s the site po se s a sig nific a nt thre a t to pub lic he a lth.  Pub lic c o mme nts o n po te ntia l listing

T HE SUPE RF UND PROCE SS R e me dial Inve stigation (R I)  Onc e a site b e c o me s liste d, a n RI is do ne to c ha ra c te rize the na ture a nd e xte nt o f c o nta mina tio n a nd so urc e (s). Na ture a nd e xte nt invo lve s:  Ba se line Risk Asse ssme nt  F ie ld Sa mpling a nd Ana lysis

T HE SUPE RF UND PROCE SS F e asibility Study (F S)  Ba se d o n info rma tio n fo und in the RI , a n F S is do ne whic h ide ntifie s a nd e va lua te s o ptio ns fo r re duc ing site risks.  E PA the n pub lishe s a pro po se d pla n ide ntifying the a lte rna tive s a nd wha t the a g e nc y’ s pre fe rre d a lte rna tive fo r re duc ing site risks.  E PA ta ke s c o mme nts o n the pro po se d pla n.

T HE SUPE RF UND PROCE SS R e c or d of De c ision (R OD)  E PA e va lua te s the c o mme nts re c e ive d a nd issue s a Re c o rd o f De c isio n (ROD) ide ntifying the c le a n up a ppro a c h the a g e nc y pla ns to imple me nt.

T HE SUPE RF UND PROCE SS  R D) – the pha se in Supe rfund e me dial De sign (R site c le a nup whe re the te c hnic a l spe c ific a tio ns fo r c le a nup re me die s a nd te c hno lo g ie s a re de sig ne d. F uture re use o f the site is a lso c o nside re d a t this po int.  R A) – fo llo ws the re me dia l e me dial Ac tion (R de sig n pha se a nd invo lve s the a c tua l c o nstruc tio n o r imple me nta tio n pha se o f Supe rfund site c le a nup.

T HE SUPE RF UND PROCE SS  Constr uc tion c omple tion – Whe n a ll e le me nts o f re me dy a re c o nstruc te d a nd in o pe ra tio n.  Ope ra tio ns & ma inte na nc e (O&M) o f re me dia l a c tio ns  F ive -ye a r re vie ws – a re vie w o f the re me dia l a c tio ns if wa ste is le ft in pla c e

WHO PAYS? T he par tie s or busine sse s r e sponsible for the c ontamination  Who g e ne ra te d the ha za rdo us sub sta nc e  Who dispo se d o f it  Who ma de it wo rse  Who o wne d the pro pe rty a t the time o f dispo sa l o r a ssume d the lia b ility  I f the re a re no via b le PRPs, study a nd c le a nup a re pa id fo r b y Supe rfund with c o ntrib utio n fro m the sta te s

COMMUNI T Y I NVOL VE ME NT  I ndividua ls po te ntia lly a ffe c te d b y a site ha ve a vo ic e in the c le a nup pro c e ss  E PA’ s re g io na l sta ff he lps c o mmunitie s g e t invo lve d b y pro viding :  Oppo rtunitie s fo r pub lic c o mme nt  E duc a tio na l ma te ria ls  Outre a c h a c tivitie s  Site info rma tio n: fa c t she e ts a nd pre se nta tio ns  T e c hnic a l a ssista nc e  Pub lic me e ting s, CAG me e ting s, o pe n ho use s

ADDI T I ONAL I NF ORMAT I ON  Supe rfund Ho tline : 800-434-9346 T DD: 800-553-7672  Supe rfund: www.e pa .g o v/ supe rfund  Co mmunity I nvo lve me nt: www.e pa .g o v/ supe rfund/ c o mmunity

PA e slie Sims, Re me dia l Pro je c t Ma na g e r, E L

Background – Located on 507 acres – 15 miles SE of Denver – Owner/Operator – City of Denver/Waste Management Inc. – Operated as a municipal landfill prior to its designation as an *NPL site – Accepted solid and liquid industrial hazardous wastes (estimated 138 million gallons of hazardous substances disposed at site) – Selected remedy involves containment and treatment of hazardous substances * NPL – National Priorities List

SELECTED REMEDY

Chronology  1966 – 1980: Landfill accepted liquid and solid industrial wastes  1984: Designated Superfund Site  6 Operable Units(OUs)  OUs 1 and 6: shallow groundwater, subsurface liquids, and deep groundwater (ongoing);  OUs 2 and 3: landfill solids and gas and  OUs 4 and 5: soils, surface water and sediments  1984 – 1993 : Evaluation of remedial alternatives  1994: Record of Decision issued (Containment)  1997: Construction of remedy

Chronology  2003: Contaminant 1,4 ‐ dioxane discovered in shallow groundwater north of site  2003 ‐ 2007: Investigation conducted to delineate extent of contamination  2006 ‐ present: Contingency operations initiated/ongoing to remove contaminant mass  Currently: Technical evaluations completed/underway in response to State and community concerns regarding groundwater remedy effectiveness

Current Efforts  4rd FYR underway  required every 5 years to ensure protectiveness of human health and the environment is maintained throughout the life of cleanup  Considers changes in conditions/technologies over time that may impact or improve cleanup goals  Ongoing technical evaluation of groundwater remedy effectiveness  Are remedy components functioning as intended?  Is there a growth fault bisecting the site that may provide a migration pathway?  Does injection of potable water influence contaminate concentrations?  Is the statistical model used to determine groundwater compliance reliable?  Is the extent of the plume fully delineated?  Are extraction wells effectively providing capture of contaminants?  Is the 1,4 ‐ dioxane plume residual in nature or an indication of remedy bypass?  Are contingency activities effectively mitigating the north end plume?

SORY GROUPS Y ADVI T COMMUNI

WHAT I S A COMMUNI T Y ADVI SORY GROUP (CAG)?  A CAG is a g ro up o f individua ls re pre se nting the dive rse inte re sts in a c o mmunity.  A CAG is a n o utle t fo r E PA a nd CDPHE to sha re info rma tio n dire c tly with inte re ste d c o mmunity me mb e rs.  A CAG pro vide s a n o ppo rtunity fo r c o mmunity me mb e rs to disc uss the ir ne e ds a nd c o nc e rns dire c tly with E PA a nd CDPHE .

WHAT I S A COMMUNI T Y ADVI SORY GROUP (CAG)?  Oppo rtunity to b uild trust b e twe e n the sta ke ho lde rs a nd a g e nc ie s.  F a c ilita te s wo rking re la tio nships a nd disse mina tio n o f info rma tio n.  Ce ntra l po int o f c o nta c t b e twe e n c o mmunity a nd E PA.  Be tte r, mo re info rme d de c isio ns a b o ut site c le a nup a nd o the r e nviro nme nta l issue s.

WHAT I S A COMMUNI T Y ADVI SORY GROUP (CAG)?  A CAG tha t is b ro a dly re pre se nta tive o f the a ffe c te d c o mmunity o ffe rs E PA a uniq ue o ppo rtunity to he a r – a nd se rio usly c o nside r – c o mmunity pre fe re nc e s fo r site c le a nup a nd re me dia tio n. (E PA OSWE R Dire c tive 9230.0-28)

WHAT DOE S T HE CAG DO?  Ho lds re g ula r me e ting s to sha re info rma tio n.  Re vie ws te c hnic a l info rma tio n a b o ut the site c le a nup.  Co nne c ts with the c o mmunity.  Wo rks with E PA a nd sta te o ffic ia ls to de te rmine info rma tio n ne e ds.

I S A COMMUNI T Y ADVI SORY GROUP RI GHT F OR OUR COMMUNI T Y? E xpe c ta tio ns – CAG Me mb e rs:  I nfo rm yo urse lf a b o ut the issue s disc usse d.  Atte nd me e ting s.  Be a c tive in me e ting s (liste n a nd spe a k).  Ob se rve CAG rule s a nd pro c e dure s.