DEPARI t\IEN I OF ENVIRONMEN lAL P ROTEC TI ON OFF I CE O F T l I f' COM MI SS J ONI'R Mall Code 401 -07 C'IIR I S C IIRI ST I I::. P

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. Bo x 40 2 BOB MARTI N Trento n , N J 08625

- 0402 Comnusswner

TEL (609) 292-2885 KIM GUA DAGNO FAX (609) 292-7695 Lr Go1 • emor 

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r r-...:J ..l.. <=::> Judith Enck, Administrator ;.1 .) a c....**~,..** U.S. Environmental Protection A ge n cy 0 r-: 0 · Region II -r--o ;:o_ 

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# ' 290 Broadwa y 

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. N ew York, NY 1000 7 -1866**~ r~**  :bo

. c ::J: Vi ,.. l R e: No minati o n for Na ti onal Prioriti es Li s t of Superfund Sites "!? ' Oran ge Valley R egional Groundwater Contamination Site () (J I • D ear M s. Enck: The New Jersey D e pa1im e nt of E nvironmen ta l Protecti o n (DEP) n ominates th e Orang e Vall ey R eg ion a l Groundwater Contaminati on s ite in the muni c ipalities of Oran ge and West Oran ge, Essex County for inclu s ion on the National Prioriti es L is t (NPL) of Superfund s ite s. The Oran ge Valley R egional Groundwater Co ntamination site con s is t s of a groWldwater plum e with numerou s po ss ible so urce s of contamination that ha s imp ac ted wells of a public water sys te m . DEP recomm e nd s the U.S. Environmenta l Prote ction A gen cy (EPA) Region ll 's Emergency and Remedia l R es pons e Division expand upon past s ite assessm ent s tudie s in the area to delin ea te the gro und water plume , id e ntif y po ss ible sources and impl e me nt app ropri ate meas w-e s to prot ec t public drinkin g water s uppli es. ln addition, DEP recomm e nd s that EPA con tinu e to assess th e potentia l impa c ts to resid e ntial s tructures from vapor intrusio n due to groundwater contamination. EPA's Removal Ac ti on Branch has conducted some initial va por intru s ion s amplin g to date

. The Oran ge Park and Gi s t Plac e w e ll s, w hich serve a comb in ed population of more than 10 ,0 00 p eo ple in th e City o f Oran ge, both h ave been imp ac ted b y c hl orinated so lvent co ntamination. Th e water d e partm e nt treat s the extrac te d g roundwat er to r e mov e compounds s uch as te trachloro e th y lene (PCE) and-tri c hloro e thylene (TCE) to me e t s tate drinkin g water s tand ard s prior to di s tributi o n . Th e form e r Brook Lane public s upply well , which is located between th e Orange Park and Gi s t Place well s, is out of operation due to co ntam in ation. Th ere arc seve ral other public supply we ll s loca ted w ithin four miles of the s ite.

New Jersey is nn Fqunl Oppurtumty Employer • Prmred on Recycled Paper and Uccyc/nbleDu e to th e lack of a know n, v iable respon s ibl e party (i es ) and sco p e o f re m e di a l work a nti cipa ted to in ves ti gate a nd c le an up th e area ground wa ter co ntamination , as well as to pro tec t r esident s' hea lth b y e n s uring sa f e water to drink and c lean a ir to breath e, it is appropriat e th at the si te be prop osed fo r th e NPL. D E P appreciates the opportunity to p articipate in th e dec is ion

- makin g process to no minate t his s it e f o r NPL s tatu s and is lookin g forward to futur e coo p erati o n w it h E PA durin g remedia l wo rk at th e site. If yo u have any qu es tion s, p lease ca ll me at 609-292-2885

C: Geo rge Pavlou , D eput y Administrator, E PA R egi on IT Walter Mugdan , Director, ·PA Region l1 Ire n e Kropp , D eputy Commi ss ion e r , 

### IJEP Dave Sween ey, A ss i s t ant Commissioner, D EP