A P P E N DI X A 

H Y D R O G E O L O GI C/ E N VI R O N M E N T A L R E F E R E N C E S 
.. ' II ~ I l' J\ HI. C' O HI J ~ < T N l'I I! I U. <il O N:, 

I llllll lllll lllll lllll 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 . 5 3 4 4 7 8 

F O U R T H FI V E- Y E A R R E VI E W R E P O R T F O R 

O R M E T C O R P. S U P E R F U N D SI T E 

M O N R O E C O U N T Y, O HI O 

P r e p a r e d b y 

U. S. E n vi r o n m e nt al P r ot e cti o n A g e n c y 

Re gi o n 5 

C hi c a g o, Illi n ois 

! 1 1 ~ & + 

, lt r et M. G uerrier o, A ct ~ ~;:t o r 

S u p e rf u n d Di visi o n 

_ _ . 5 /f / _ ~I T _ _ _ _ _ _ _ _ _ D at e 
:.. 

T a bl e of C o nt e nts 

LI S T O F A B B R E VI A TI O N S & A C R O N Y M S ......................................................................................... 3 

I. I N T R O D U C TI O N ................................................................................................................................... 4 

O R M E T FI V E- Y E A R R E VI E W S U M M A R Y F O R M .......................................................................... 6 

II. R E S P O N S E A C TI O N S U M M A R Y ...................................................................................................... 7 

B asis f or T a ki n g A cti o n .......................................................................................................................... 7 

R es p o ns e A cti o ns .................................................................................................................................... 8 

St at us of I m pl e m e nt ati o n ...................................................................................................................... 1 1 

I nstit uti o n al C o ntr ols ............................................................................................................................ 1 2 

S yst e ms O p er ati o ns/ O p er ati o n & M ai nt e n a n c e .................................................................................... 1 4 

III. P R O G R E S S SI N C E T H E L A S T R E VI E W ....................................................................................... 1 4 

I V. FI V E- Y E A R R E VI E W P R O C E S S .................................................................................................... 1 5 

C o m m u nit y N otifi c ati o n, I n v ol v e m e nt & Sit e I nt er vi e ws .................................................................... 1 5 

D at a R e vi e w .......................................................................................................................................... 1 6 

Site I ns p e cti o n ....................................................................................................................................... 1 9 

V. T E C H NI C A L A S S E S S M E N T ............................................................................................................ 2 0 

Q U E S TI O N A: Is t h e r e m e d y f u n cti o ni n g as i nt e n d e d b y t h e d e cisi o n d o c u m e nts ? ........................... 2 0 

Q U E S TI O N B: Ar e t h e e x p os ur e ass u m pti o ns, t o xi cit y data, cl e a n u p l e v els, a n d r e m e di al a cti o n 

o bj e cti v es ( R A Os) us e d at t h e ti m e of t h e r e m e d y s el e cti o n still v ali d ? .............................................. 2 1 

Q U E S TI O N C: H as a n y ot h er i nf or m ati o n c o m e t o li g ht t h at c o ul d c all i nt o q u esti o n t h e 

pr ot e cti v e n ess of t h e r e m e d y ? ............................................................................................................... 2 1 

VI. I S S U E S/ R E C O M M E N D A TI O N S ..................................................................................................... 2 2 

O T H E R FI N DI N G S .............................................................................................................................. 2 3 

VI L P R O T E C TI V E N E S S S T A T E M E N T ................................................................................................ 2 3 

VIII. N E X T R E VI E W ............................................................................................................................... 2 4 

A P P E N DI X A - R E F E R E N C E LI S T ................................................................................................... A- 1 5 

A P P E N DI X B- C H R O N O L O G Y ....................................................................................................... B- 1 5 

A P P E N DI X C- SI T E M A P S ................................................................................................................. C- 1 

A P P E N DI X D- N E W S P A P E R A D V E R TI S E M E N T S ................................................................... , .... D- 1 

2 
LI S T O F A B B R E VI A TI O N S & A C R O N Y M S 

A R A R A p pli c a bl e or R el e v a nt a n d A p pr o pri at e R e q uir e m e nt 

C E R C L A C o m pr e h e nsi v e E n vir o n m e nt al R es p o ns e, C o m p e ns ati o n, a n d Li a bilit y A ct 

C F R C o d e of F e d er al R e g ul ati o ns 

C M S D C o nstr u cti o n M at eri als S cr a p D u m p 

C O Cs C o nt a mi n a nts of C o n c er n 

C R D A C ar b o n R u n off a n d D e p ositi o n Ar e a 

E S D E x pl a n ati o n of Si g nifi c a nt Diff er e n c es 

E P A U nit e d St at es E n vir o n m e nt al Pr ot e cti o n A g e n c y 

F D P F or m er Dis p os al P o n d 

F S F e asi bilit y St u d y 

F S P S A F or m er S p e nt P otli n er St or a g e Ar e a 

F Y R Fi v e- Y e ar R e vi e w 

I Cs I nstit uti o n al C o ntr ols 

M C L M a xi m u m C o nt a mi n a nt L e v el 

N C P N ati o n al Oil a n d H a z ar d o us S u bst a n c es P oll uti o n C o nti n g e n c y Pl a n 

N P L N ati o n al Pri oriti es List 

O & M O p er ati o n a n d M ai nt e n a n c e 

O U O p er a bl e U nit 

O hi o E P A O hi o E n vir o n m e nt al Pr ot e cti o n A g e n c y 

P A H P ol y n u cl e ar Ar o m ati c H y dr o c ar b o ns 

P C B P ol y c hl ori n at e d Bi p h e n yl 

P C E T etr a c hl or o et h yl e n e ( p er c hl or o et h yl e n e) 

R A R e m e di al A cti o n 

R A O R e m e di al A cti o n O bj e cti v es 

R D R e m e di al D esi g n 

RI R e m e di al I n v esti g ati o n 

R O D R e c or d of D e cisi o n 

R P M R e m e di al Pr oj e ct M a n a g er 

S O W A S af e Dri n ki n g W at er A ct 

Sit e Or m et C or p. S u p erf u n d Sit e 

T B C T o b e c o nsi d er e d 

T S C A T o xi c S u bst a n c es C o ntr ol A ct 

U U/ U E U nli mit e d Us e a n d U nr estri ct e d E x p os ur e 

W A D c y a ni d e W e a k- A ci d Diss o ci a bl e C y a ni d e 

3 
I. I N T R O D U C TI O N 

T h e p ur p os e of a Fi v e- Y e ar R e vi e w ( F Y R) is t o e v al u at e t h e i m pl e m e nt ati o n a n d p erf or m a n c e of a 

r e m e d y i n or d er t o d et er mi n e if t h e r e m e d y is a n d will c o nti n u e t o b e pr ot e cti v e of h u m a n h e alt h a n d t h e 

e n vir o n m e nt. T h e m et h o ds, fi n di n gs, a n d c o n cl usi o ns of r e vi e ws ar e d o c u m e nt e d i n F Y R r e p orts s u c h as 

t his o n e. I n a d diti o n, F Y R r e p orts i d e ntif y iss u es f o u n d d uri n g t h e r e vi e w, if a n y, a n d d o c u m e nt 

r e c o m m e n d ati o ns t o a d dr ess t h e m. 

T h e U nit e d St at es E n vir o n m e nt al Pr ot e cti o n A g e n c y ( E P A) is pr e p ari n g t his F Y R p urs u a nt t o t h e 

C o m pr e h e nsi v e E n vir o n m e nt al R es p o ns e, C o m p e ns ati o n, a n d Li a bilit y A ct ( C E R C L A) S e cti o n I 2 I, 

c o nsist e nt wit h t h e N ati o n al C o nti n g e n c y Pl a n ( N C P) ( 4 0 C F R S e cti o n 3 0 0. 4 3 0(f)( 4)(ii)), a n d 

c o nsi d eri n g E P A p oli c y. 

T his is t h e f o urt h F Y R f or t h e Or m et C or p. S u p erf u n d Sit e ( Sit e). T h e tri g g eri n g a cti o n f or t his st at ut or y 

r e vi e w is t h e si g n at ur e d at e of t h e t hir d F Y R o n M a y 4, 2 0 1 2. T h e F Y R h as b e e n pr e p ar e d d u e t o t h e 

fact t h at h a z ar d o us s u bst a n c es, p oll ut a nts, or c o nt a mi n a nts r e m ai n at t h e sit e a b o v e l e v els t h at all o w f or 

u nli mit e d us e a n d u nr estri ct e d e x p os ur e ( U U/ U E). 

T h e Sit e c o nsists of o n e o p er a bl e u nit ( O U) t h at will b e a d dr ess e d i n t his F Y R. T h e r e m e d y at t h e Or m et 

C or p. S u p erf u n d Sit e a d dr ess es t hr e ats r el at e d t o e x p os ur e t o c o nt a mi n at e d gr o u n d w at er a n d s oil 

t hr o u g h c a p pi n g, e x c a v ati o n, s oil fl us hi n g, pl u m e c o nt ai n m e nt, i nst all ati o n of f e n ci n g, a n d 

i m pl e m e nt ati o n of i nstit uti o n al c o ntr ols (I Cs). 

T h e Or m et C or p. S u p erf u n d Sit e F Y R w as l e d b y K at h eri n e T h o m as, E P A R e gi o n 5 S u p erf u n d 

Di visi o n, wit h i n p ut fr o m S h a n n o n C o o k of t h e O hi o E n vir o n m e nt al Pr ot e cti o n A g e n c y ( O hi o E P A). 

P arti ci p a nts i n cl u d e d A dri a n P al o m e q u e ( E P A R e gi o n 5 C o m m u nit y I n v ol v e m e nt C o or di n at or) a n d 

J o h n R o c h ott e ( O E P A). T h e pr o p ert y o w n er, H a n ni b al D e v el o p m e nt P art n ers ( p ar e nt c o m p a n y Ni a g ar a 

W orl d wi d e) w as f or m all y n otifi e d of t h e i niti ati o n of t h e F Y R. T h e r e vi e w b e g a n o n 5/ 4/ 2 0 1 6. 

Site B a c k g r o u n d 

T h e Sit e c o m pris es p art of t h e n ort h e ast p orti o n of t h e Or m et Pri m ar y Al u mi n u m C or p or ati o n r e d u cti o n 

pl a nt pr o p ert y l o c at e d i n M o nr o e C o u nt y, O hi o, a p pr o xi m at el y 3 mil es n ort h of t h e cit y of H a n ni b al i n 

t h e s o ut h e ast er n p art of t h e st at e. T h e pr o p ert y is b o u n d e d o n t h e n ort h w est b y O hi o St at e R o ut e 7, a n d 

o n t h e e ast a n d s o ut h e ast b y t h e O hi o Ri v er. Si n c e t h e r e d u cti o n pl a nt st art e d o p er ati o ns i n 1 9 5 8, t h e 

m ai n pr o c ess h as b e e n t h e r e d u cti o n of al u mi n a t o pr o d u c e al u mi n u m m et al. T h e r e d u cti o n pl a nt w as 

pr o d u ci n g al u mi n u m fr o m al u mi n a u ntil 2 0 1 3 w h e n Orr n et C or p. fil e d f or b a n kr u pt c y a n d cl os e d t h e 

f a cilit y. L o c at e d i m m e di at el y t o t h e w est of t h e r e d u cti o n pl a nt is t h e f or m er C o ns oli d at e d Al u mi n u m 

C or p or ati o n r olli n g mill, w hi c h w as l at er o w n e d a n d o p er at e d b y t h e Or m et Al u mi n u m Mill Pr o d u cts 

C or p. T h e r olli n g mill s h ut d o w n i n 2 0 0 5 a n d t h e pr o p ert y w as s ol d i n 2 0 0 7. Mi x e d- us e c o m m er ci al a n d 

i n d ustri al f a ciliti es c urr e ntl y o p er at e o n t h e f or m er r olli n g mill pr o p ert y. T h e Or m et C or p. H a n ni b al 

f a cilit y w as a c q uir e d i n 2 0 1 4 b y H a n ni b al D e v el o p m e nt P art n ers. H a n ni b al D e v el o p m e nt P art n ers h as 

ass u m e d r es p o nsi bilit y f or o p er ati o n, m ai nt e n a n c e of t h e r e m e d y a n d a n n u al gr o u n d w at er s a m pli n g of 

t h e Site. 

Fr o m 1 9 5 8 t o 1 9 6 8, s p e nt p otli n er, a h a z ar d o us b y- pr o d u ct of al u mi n u m pr o d u cti o n, w as pl a c e d i n a n 

u nli n e d o p e n ar e a i n t h e n ort h e ast ar e a of t h e Sit e, w hi c h is r ef err e d t o as t h e f or m er s p e nt p otli n er 

4 
st or a g e ar e a ( F S P S A). Fr o m 1 9 6 8 t o 1 9 8 1, m u c h of t h e p otli n er w ast e w as r e m o v e d a n d tr a ns p ort e d t o 

a n o n-sit e r e c o v er y pl a nt t h at r e c o v er e d a us e a bl e m at eri al c all e d cr y olit e fr o m t h e p otli n er. At v ari o us 

ti m es fr o m 1 9 5 8 t o 1 9 8 1, o n e or m or e u nli n e d dis p os al r et e nti o n p o n ds, f or m er dis p os al p o n ds ( F D Ps), 

w er e us e d. Pri m aril y, F D Ps N o. 1 t hr o u g h 4 w er e us e d f or t h e dis p os al of pr o c ess w ast es fr o m t h e air 

e missi o ns w et s cr u b bi n g s yst e m i n t h e f or m of a sl u d g e, t h e pri m ar y c o nstit u e nts of w hi c h w er e 

al u mi n a, p arti cl e c ar b o n, a n d c al ci u m- b as e d s alts. A w ast e sl urr y fr o m t h e cr y olit e r e c o v er y pl a nt w as 

r o ut e d t o F D P N o. 5; F D Ps N o. 1 t hr o u g h N o. 4 m a y h a v e r e c ei v e d mi n or a m o u nts of cr y olit e pl a nt 

w ast e. T h es e t aili n gs w er e al k ali n e a n d c o nsist e d pri m aril y of c ar b o n a c e o us m at eri al fr o m t h e p otli n er 

al o n g wit h s o di u m a n d c al ci u m- b as e d s alts. Si n c e 1 9 8 0, t h e r e m ai ni n g p otli n er m at eri al h as b e e n 

tr a ns p ort e d off-sit e f or dis p os al. Fr o m a b o ut 1 9 6 6 u ntil mi d- 1 9 7 9, Or m et d e p osit e d w ast e c o nstr u cti o n 

m at eri als a n d ot h er mis c ell a n e o us pl a nt d e bris i n t h e s o ut h e astf. m c o m er of t h e O m 1 et pr o p ert y, a dj a c e nt 

t o F D P N o. 5. T his f o ur t o fi ve-a <.;i"t: ar e a is d esi g n at e d t h e c o nstr u cti o n m at eri als s cr a p d u m p ( C M S D). 

A n ar e a r ef err e d t o as t h e c ar b o n r u n off a n d d e p ositi o n ar e a ( C R D A) c o nt ai n e d c ar b o n d e p osits, 

pr o b a bl y c arri e d t h er e b y st or m w at er r u n off fr o m t h e Or m et pl a nt ar e a. S o m e of t h e c ar b o n r u n off m a y 

als o h a v e e nt er e d t h e 0 0 4 o utf all str e a m a n d b a c k w at er ar e a. 

T h e all u vi al a q uif er b e n e at h t h e s urf a c e of t h e r e d u cti o n pl a nt w as a s o ur c e of b ot h pr o c ess a n d dri n ki n g 

w at er f or t h e r e d u cti o n pl a nt a n d t h e r olli n g mill u ntil t h e r olli n g mill w as s h ut d o w n i n 2 0 0 5. Pri or t o 

2 0 0 5, t w o hi g h c a p a cit y R a n n e y w ells, o n e o n t h e r e d u cti o n pl a nt's pr o p ert y a n d t h e ot h er o n t h e r olli n g 

mill's pr o p ert y, p u m p e d cl os e t o f o ur milli o n g all o ns p er d a y. W at er fr o m t h e r olli n g mill's R a n n e y w ell 

w as us e d f or dri n ki n g w at er b y b ot h pl a nts. T h e r e d u cti o n pl a nt's R a n n e y w ell pr es e ntl y pr o d u c es a b o ut 

1. 0 milli o n g all o ns p er d a y, t h e mi ni m u m all o w e d b y E P A, as p art of t h e sit e r e m e d y. Si n c e t h e 

s h ut d o w n of t h e r olli n g mill, its R a n n e y w ell h as n ot b e e n p u m p e d a n d it h as n o w b e e n a b a n d o n e d. T h e 

r e d u cti o n pl a nt o bt ai ns its dri n ki n g w at er fr o m a p u bli c w at er s u p pl y a n d a n E n vir o n m e nt al C o v e n a nt 

h as b e e n si g n e d pr o hi biti n g all us e of gr o u n d w at er b e n e at h t h e Sit e, r olli n g mill a n d r e d u cti o n pl a nt. S e e 

A p p e n di x B f or Sit e c hr o n ol o g y. 

5 
O R M E T FI V E- Y E A R R E VI E W S U M M A R Y F O R M 

Sit e N a m e: O n n et C or p. 

E P A I D: O H D 0 0 4 3 7 9 9 7 0 

R e gi o n: 5 St at e: O H 

N P L St at us: Fi n al 

M ulti pl e O Us ? 

N o 

L e a d a g e n c y: E P A 

SI T E J D E N TI FI C A T J O N- . 

Cit y/ C o u nt y: H a n ni b al/ M o nr o e C o u nt y 

SI T E S T A T U S 

H as t h e sit e a c hi e v e d c o nst r u cti o n c o m pl eti o n ? 

Y es 

. ' ,. , . 

R E VI E W S T A T U S 

A ut h o r n a m e ( F e d e r al o r St at e P r oj e ct M a n a g e r): K at h e n n e T h o m as 

A ut h o r affili ati o n: U. S. E P A 

R e vi e w p e ri o d: 5/ 4/ 2 0 1 2 - 5/ 4/ 2 0 1 7 

D at e of sit e i ns p e cti o n: 1 1/ 1 6/ 2 0 1 6 

T y p e of r e vi e w: St at ut or y 

R e vi e w n u m b e r: 4 

T ri g g e ri n g a cti o n d at e: 5/ 4/ 2 0 1 2 

D u e d at e (fi v e y e ars aft er tri g g eri n g a cti o n d ate): 5/ 4/ 2 0 1 7 

6 
II. R E S P O N S E A C TI O N S U M M A R Y 

B asis f o r T a ki n g A cti o n 

I n 1 9 7 2, a h y dr o g e ol o g y st u d y v erifi e d t h e pr es e n c e of gr o u n d w at er c o nt a mi n ati o n i n t h e R a n n e y well 

p u m pi n g c e nt er at t h e r e d u cti o n pla nt. As a r es ult of t his st u d y, t w o i nt er c e pt or w ells ( # 1 a n d # 2) were 

i nstalle d n ort h of t his R a n n e y well t o i nt er c e pt t he pl u m e b ef or e it r e a c h e d t h e p u m pi n g ce nter. 

Alt h o u g h t h e gr o u n d w at er u n d er n e at h t h e r e d u cti o n pl a nt was n ot use d f or dri n ki n g w at er, dri n ki n g 

water f or a b o ut 3, 2 0 0 e m pl o y e es at b ot h pl a nts was b ei n g o bt ai n e d fr o m t his a q uif er at t h e r olli n g mill. 

T he c o nt a mi n ati o n at t h e r e d u cti o n pl a nt s o ur c e areas, c o m bi n e d wit h its p ot e nti al i m p a ct o n 

d o w n gr a di e nt dri n ki n g w at er s u p pli es, pr o m pt e d E P A t o pr o p os e t h at t h e Sit e be pl a c e d o n t h e N ati o n al 

Pri oriti es List ( N P L) i n S e pt e m b er 1 9 8 5. See A p p e n di x C Fi g ur e 1 f or t h e b as e Sit e M a p. 

T he Re me dial I n v esti g ati o n ( RI) f o u n d c y a ni d e, fl u ori de, c hr o mi u m, ars e ni c, a n d p ol y n u cl e ar ar o m ati c 

. h y dr o c ar b o ns ( P A Hs) i n s oli ds fr o m t h e F D Ps. T he c o nt a mi n a nts di d n ot a p p e ar t o be mi gr ati n g t o a n y 

si g nifi c a nt d e gr e e, eit h er t o gr o u n d w at er or air, e x c e pt t h at fl u ori d e w as pr es e nt i n gr o u n d w at er d o w ngra die nt of F D P N o. 5 at l e v els t h at e x c e e d e d t he m a xi m u m c o nt a mi n a nt le vel ( M C L). A c o m p aris o n 

wit h sa m ple r es ults fr o m 1 9 7 2 s h o w e d t h at fl u ori de c o n c e ntr ati o ns d o w n gr a di e nt of F D P N o. 5 ha d decrease d b y o ne t o t hr e e or d ers of m a g nit u d e at a gi v e n s a m pli n g l o c ati o n. P o n d s oli ds w er e f o u n d t o be 

c h ar a ct eristi c all y al k ali n e i n nat ure a n d n o e vi d e n c e w as f o u n d of s urf a c e r u n off fr o m t h e p o n ds. 

At t he F S P S A, r el ati v el y hi g h c o n c e ntr ati o ns of P A Hs w er e d et e ct e d i n s oils i n t h e 2 t o 4-f o ot h oriz o n. 

Beca use P A Hs are r el ati v el y i m m o bil e, t h e y w er e n ot e x p e ct e d t o c o ntri b ut e si g nifi c a ntl y t o r el e as es t o 

gr o u n d w at er fr o m t h e F S P S A. M o d er at e le vels of c y a ni d e a n d ars e ni c, b ot h m o bil e i n gr o u n d w at er, 

were als o i d e ntifi e d i n t h e F S P S A. T he F S P S A was f o u n d t o be t h e pri m ar y c o ntri b ut or t o c y a ni d e a n d 

fl u ori de c o nt a mi n ati o n i n gr o u n d w at er, a n d ma y als o be a fact or i n t he pr es e n c e of ars e ni c i n 

d o w n gr a di e nt wells. I n c o ntr ast t o t he sit u ati o n at F D P N o. 5, fl u ori d e l e v els i n a n d d o w n gr a di e nt of t h e 

F S P S A were f o u n d t o h a v e s h o w n a n i n cr e asi n g tre n d si n c e 1 9 7 2. 

A si n gle c o m p osit e s a m pl e fr o m t h e C R D A s h o w e d p ol y c hl ori n at e d bi p h e n yls ( P C Bs) at 5 6 m g/ k g. T he 

C R D A was t h o u g ht t o be a pr o b a bl e s o ur c e of P C Bs a n d P A Hs t o t h e b a c k w at er a n d ri v er ba n k areas, 

tr a ns p ort e d b y st or m w at er r u n off Ars e ni c w as als o d et e ct e d as hi g h as 8 3 m g/ k g i n s oils at t h e C R D A. 

T he C M S D was f o u n d t o be a si g nifi c a nt s o ur c e of c y a ni d e a n d P C Bs i n t h e see ps, b a c k w at er s e di m e nts, 

a n d ri ver water. P A Hs w er e f o u n d at l e v els t hat c o ntri b ut e d t o a n i n cr e as e d e c ol o gi c al ris k b ut w er e n ot 

belie ve d t o be mi gr ati n g o ut of t h e s o ur c e area. 

Gr o u n d w at er at t h e Sit e w as f o u n d t o be c o nt a mi n at e d i n e x c ess of M C Ls f or a n u m b er of c o nt a mi n a nts, 

i n cl u di n g t etr a c hl or o et h e n e ( P C E), c y a ni d e, fl u o n d e, ars e ni c, a nti m o n y. a n d b er ylli u m. T h e pri m ar y 

s o urce of t he pl u m e a p p e ar e d t o be i nfiltr ati o n of pr e ci pit ati o n t hr o u g h t h e F S P S A. T h e pl u m e e xt e n d e d 

a b o ut 3, 0 0 0 feet fr o m t h e F S P S A b ef or e it r e a c h e d t he mt er c e pt or wells. It was c h ar a ct eri z e d b y a basic 

p H near t he F S P S A, w hi c h b e c a m e pr o gr essi v el y m ore ne utral wit h dist a n c e fr o m t h e s o urce. S o di u m 

was als o t y pi c all y el e v at e d i n t h e pl u me. 

A s mall b a c k w at er area at t h e m o ut h of t he 0 0 4 o utfall str e a m create d a si n k f or c o nt a mi n ati o n. P C Bs at 

nearl y I 0 0 p p m a n d t otal P A Hs at o v er 1 1 0 0 p p m were i d e ntifi e d i n t h e s e di m e nts. 

7 
Alt h o u g h i n d ustri al a cti vit y u pstr e a m fr o m t h e Sit e c o ntri b ut e d a c ert ai n l e v el of c o nt a mi n ati o n t o t h e 

O hi o Ri v er w at er a n d s e di m e nts as t h e y r e a c h e d t h e Sit e, s o m e eff e cts fr o m t h e Sit e w er e f o u n d i n b ot h 

m e di a. T h e eff e cts w er e m ai nl y i n t h e f or m of el e v at e d p H a n d c o n c e ntr ati o ns of P A Hs, P C Bs, a n d 

c y a ni d e. B e c a us e p u m pi n g of t h e t w o R a n n e y w ells m a d e t h e ri v er a l osi n g str e a m i n t his str et c h, st or m 

w at er r u n off a n d s e e p dis c h ar g e w er e f o u n d t o b e t h e m ost li k el y tr a ns p ort m e c h a nis ms t o t h e ri v er. 

T h e ris k c h ar a ct eri z ati o n f or t h e b as eli n e ris k ass ess m e nt f or h u m a n h e alt h t h at w as p erf or m e d d uri n g 

t h e R 1 i n di c at e d t h at esti m at e d ris ks w er e gr e at est u n d er a f ut ur e r esi d e nti al l a n d us e s c e n ari o t h at 

i n cl u d e d dir e ct c o nt a ct wit h a n d i n g esti o n of c o nt a mi n at e d s oils a n d s e di m e nts, i n h al ati o n of p arti c ul at e 

m att er, i n g esti o n of c o nt a mi n at e d gr o u n d w at er, a n d i n g esti o n of fis h c o nt a mi n at e d wit h P C Bs fr o m t h e 

Site. Aft er r e c ei vi n g c o m m u nit y i n p ut, E P A d et er mi n e d t h at it w as r e as o n a bl e t o ass u m e t h at t h e c urr e nt 

c o m m er ci al or i n d ustri al l a n d us e w o ul d c o nti n u e f or t h e f or es e e a bl e f ut ur e a n d t h at r esi d e nti al d e v el o pm e nt of t h e Sit e w o ul d b e hi g hl y u nli k el y. T h er ef or e, t h e s el e ct e d r e m e d y w as b as e d o n cl e a ni n g u p t o 

st a n d ar ds b as e d o n f ut ur e c o m m er ci al or i n d ustri al us e of t h e pr o p ert y. H o w e v er, E P A als o b eli e v e d it 

w as r e as o n a bl e t o ass u m e t h at at s o m e ti m e i n t h e f ut ur e t h e R a n n e y w ell at t h e r e d u cti o n pl a nt mi g ht n o 

l o n g er be us e d, i n w hi c h c as e c o nt ai n m e nt of t h e pl u m e w o ul d b e l ost a n d c o nt a mi n ati o n mi g ht r e a c h 

t h e R a n n e y w ell at t h e R olli n g Mill w hi c h, at t h e ti m e, s u p pli e d dri n ki n g w at er. T h e r e m e d y s el e ct e d 

i n cl u d e d t h e r est or ati o n of t h e gr o u n d w at er t o dri n ki n g w at er q u alit y. 

T h e e n vir o H m e nt al e v al u ati o n p erf or m e d f or t h e Sit e f or t h e Rl c o n cl u d e d t h at t h e c o nt a mi n a nts of 

c o n c er n fr o m a n e c ol o gi c al st a n d p oi nt w er e k n o w n t o pr o d u c e s u bl et h al a n d ot h er t o xi c eff e cts i n t h e 

t y p es of or g a nis ms f o u n d o n t h e Sit e. T h e e c ol o gi c al ris k ass ess m e nt i n di c at e d 2 9 i n or g a ni c a n d 3 9 

or g a ni c c h e mi c als w er e pr es e nt i n t h e e n vir o n n 1 e nt al m e di a at t h e Sit e. S e di m e nts fr o m t h e s o ut h w est er n 

C M S D s e e ps a n d t h e b a c k w at er ar e a pr o d u c e d hi g h m ort alit y a m o n g bi o ass a y or g a nis ms. S urf a c e w at er 

i n t h e b a c k w at er ar e a a n d i m m e di at el y d o w nstr e a m e x c e e d e d t h e f o ur- d a y a v er a g e a m bi e nt w at er 

q u alit y crit eri a f or a nti m o n y, l e a d, c y a ni d e, a n d P C Bs. C y a ni d e at t w o l o c ati o ns e x c e e d e d t h e o n e- h o ur 

a v er a g e crit eri o n. T his d e m o nstr at e d t h at t h e Sit e's c o nt a mi n a nts i n ri v er w at er c o ul d p ot e nti all y c a us e 

l et h al a n d s u bl et h al eff e cts i n a q u ati c or g a nis ms. I n a d diti o n, c o n c e ntr ati o ns of c o nt a mi n a nts i n ri v er 

s e di m e nts w er e c o m p ar e d t o r ef er e n c e sit es (r el ati v el y cl e a n) a n d sit es wit h a hi g h o c c urr e n c e of t u m ors 

i n fis h. S e di m e nts o n-sit e a n d d o w nstr e a m of t h e Sit e e x c e e d e d t h e l o w est c o n c e ntr ati o ns f or P C Bs a n d 

P A Hs o bs er v e d at t h e fis h t u m or sit es. B a c k w at er ar e a P A H c o n c e ntr ati o ns e x c e e d e d t h e hi g h est l e v els 

r e p ort e d fr o m t h e fis h t u m or sit es, i n di c ati n g t h e b a c k w at er ar e a w as li k el y t o p os e s e v er e c ar ci n o g e ni c 

ris k t o fis h e nt eri n g fr o m t h e O hi o Ri v er d u e t o e x p os ur e t o P C Bs a n d P A Hs i n s e di m e nts. T h e C M S D 

a n d t h e C R D A w er e c o nsi d er e d t h e li k el y s o ur c es f or P C Bs a n d P A Hs i n t h e b a c k w at er ar e a s e di m e nts 

a n d t h e ri v er. 

R es p o ns e A cti o ns 

E P A pr o p os e d t h e Sit e f or t h e N ati o n al Pri oriti es List ( N P L) of h a z ar d o us w ast e sit es o n S e pt e m b er 1 8, 

1 9 8 5, a n d t h e Sit e w as list e d o n J ul y 2 1, 1 9 8 7. Or m et C or p. b e g a n w or k p urs u a nt t o a n A d mi nistr ati v e 

Or d er b y C o ns e nt b et w e e n Orr n et C or p or ati o n, O hi o E P A a n d E P A si g n e d M a y 1 9, 1 9 8 7. 

R e m e d y S el e cti o n 

T h e s el e ct e d r e m e d y is b as e d o n a cl e a n u p of t h e s oils t o st a n d ar ds b as e d o n f ut ur e c o m m er ci al or 

i n d ustri al us e of t h e pr o p ert y. T h e r e m e di ati o n g o al f or t h e gr o u n d w at er is r est or ati o n t o dri n ki n g w at er 

8 
q ualit y. T a bl e 1, t a k e n fr o m t h e 1 9 9 4 R e c or d of D e cisi o n ( R O D), s h o ws t h e r a n g es of c o n c e ntr ati o ns as 

well as t he cl e a n- u p st a n d ar ds s p e cifi e d f or c h e mi c als of c o n c er n i n gr o u n d w at er at t h e Site. 

T a bl e 1. Cl e a n- u p St a n d ar ds f or C h e mi c als of C o n c er n i n Gr o u n d w at er ( R O D 1 9 9 4) 

C h e mi c als of C o n c er n f or C o n c e ntr at 1 0 n R a n g e Cl e a n- u p St a n d ar d 

Gr o u n d w at er ( μ g/ 1) ( μ g/ 1) 

t etr a c h l or o et h e n e 5 0- 4 0 5a 

ars e ni c 1. 8 - 3 9 4 ! O b 

b er ylli u m 0. 2 5 - 3 5 4a 

c y a ni d e I 1. 0 - 1 8, 6 0 0 2 0 0 3 

m a n g a n es e e N D - 1 5, 4 0 0 2 3 0c, d 

v a n a di u m 2 6- 3 6 9 2 6 0 3 

fl u o n d e 1 0 0 - 7 1 0, 0 0 0 4 0 0 0 3 

a M C L or pr o p os e d M C L, f or c y ar n d e, t h e v al u e 1s t h e c o n c e ntr ati o n of c y ar n d e a m e n a bl e t o c hl or m at 1 o n, n ot t otal c y a ni d e 

b a n al yti c al q ua nt 1tat 1 o n l ur nt ( gr e at er t h a n b a c k gr o u n d), b a c k gr o u n d, h o w e v er, h as n ot b e e n fir ml y est a blis h e d 

c ns k b as e d 

d b a c k gr o u n d 

e T his 1s a n i nt eri m st a n d ar d f or m a n g a n es e, b as e d o n b a c k gr o u n d d et er m m e d d u n n g t h e ns k ass ess m e nt, f urt h er a n al ysis 

w o ul d b e n e e d e d t o d et e n m n e a n y c h a n g es m a d e t o b a c k gr o u n d v al u e 

T h e c o m p o n e nts of t h e r e m e d y r es ulti n g fr o m t he 1 9 9 4 R O D a n d t h e 1 9 9 7 E x pl a n ati o n of Si g nifi c a nt 

Diff er e n c es ( E S D) are: 

• Gr o u n d w at er. P u m pi n g s hall c o nti n u e at t h e Orr net C or p. R a n n e y well a n d t h e e xisti n g i nt er c e pt or 

w ells t o m ai nt ai n c a pt ur e of c o nt a mi n at e d gr o u n d w at er t o pr e v e nt c o nt a mi n a nts fr o m mi gr ati n g 

t o t h e O hi o Ri v er or t o t h e r olli n g mill pr o p ert y. I nt er c e pt or well w at er w o ul d b e tr e at e d b y 

ferr o us s alt pr e ci pit ati o n a n d cl arifi c ati o n or ot h er m e a ns n e c ess ar y t o a c hi e v e st a n d ar ds set b y 

t he O hi o E P A N ati o n al P oll ut a nt Dis c h ar g e Eli mi n ati o n S yst e m ( N P D E S) pr o gr a m b ef or e 

dis c h ar g e t o t h e O hi o Ri v er. T h e re me dial g oal f or gr o u n d w at er is r est or ati o n t o dri n ki n g w at er 

q ualit y. T h er ef or e, gr o u n d w at er cl e a n u p st a n d ar ds w er e est a blis h e d t h at, w h e n att ai n e d, w o ul d 

all o w f or p ot a bl e us es of t h e gr o u n d w at er. C o m pli a n c e wit h t h es e cl e a n u p st a n d ar ds m ust be 

att ai n e d t hr o u g h o ut t h e pl u m e. Gr o u n d w at er w o ul d c o nti n u e t o be e xtr a ct e d a n d p arti all y tr e at e d 

u ntil t h e gr o u n d w at er cl e a n u p st a n d ar ds are att ai n e d. 

• Leac hate. Tr e n c h dr ai ns w o ul d be i nst all e d t o i nt er c e pt a n d e xtr a ct all l e a c h at e s e e pi n g fr o m t he 

C M S D t o pr e v e nt see p w at er fr o m c o nt a mi n ati n g str e a m b a c k w at er s e di m e nts a n d ri v er water. 

T he l e a c h at e w o ul d b e tr e at e d t o m e et N P D E S dis c h ar g e li mits. 

• C M S D. T h e C M S D w o ul d be r e- c o nt o ur e d a n d c o v er e d wit h a d u al- b arri er c a p t h at w o ul d m e et t he 

r e q uir e m e nts of S u btitl e C of t he R es o ur c e C o ns er v ati o n a n d R e c o v er y Act. A T o xi c S u bst a n c es 

C o ntr ol A ct ( T S C A) cell w o ul d be c o nstr u ct e d wit hi n t he C M S D. 

• S oils. Resi d ual s oil c o nt a mi n ati o n i n t he F S P S A w o ul d be tr e at e d b y m sit u s oil fl us hi n g. 

C o nt a mi n a nts w o ul d be fl us he d t o t he gr o u n d w at er f or ulti m at e c a pt ur e a n d tr e at m e nt b y 

s pr a yi n g t he ar e a wit h w at er t hat w o ul d diss ol v e t he c o nt a mi n a nts c o nt ai n e d i n t he s oil. T h e 

9 
F S P S A w as d et er mi n e d t o be t h e pri m ar y c o ntri b ut or of fl u ori d e a n d c y a ni d e c o nt a mi n ati o n t o 

t h e u n d erl yi n g gr o u n d w at er. T h e g oal of t h e i n sit u s oil fl us hi n g is t o r e m o v e s uffi ci e nt 

c o nt a mi n a nts fr o m t he s oils s u c h t h at t h e s oils n o l o n g er c a us e or c o ntri b ut e t o e x c e e d a n c es of 

t he gr o u n d w at er cl e a n u p st a n d ar ds i n t h e u n d erl yi n g a n d d o w n gr a di e nt gr o u n d w at er. T h e R O D 

pr o vi d e d t h at d uri n g t h e d esi g n p h as e of t h e r e m e d y a s oil m o d el a c c e pt a bl e t o E P A w o ul d be 

use d t o d e v el o p Sit e-s p e cifi c s oil cl e a n u p st a n d ar ds f or t h e gr o u n d w at er c o nt a mi n a nts of c o n c er n 

f or w hi c h gr o u n d w at er cl e a n u p st a n d ar ds ha d b e e n est a blis h e d. T h es e s oil cl e a n u p st a n d ar ds 

ha ve n ot b e e n d e v el o p e d a n d a p pr o v e d b y t h e E P A as yet. Tr e at m e nt of t h e F S P S A s oils b y s oil 

fl us hi n g w o ul d c o nti n u e u ntil t h e s oil cl e a n u p st a n d ar ds ar e a c hi e v e d a n d w h e n all c o m pli a n c e 

p oi nts f or gr o u n d w at er i n a n d d o w n gr a di e nt of t h e F S P S A a c hi e v e t h e gr o u n d w at er cl e a n u p 

st a n d ar ds. C o nt a mi n at e d s oils fr o m t h e C R D A w o ul d be e x c a v at e d a n d c o ns oli d at e d u n d er t he 

c o v er at t h e C M S D. S oils t o be e x c a v at e d fr o m t he tr e n c h dr ai ns w o ul d als o be c o ns oli d at e d 

u n d er t h e C M S D ca p. S oils wit h P C B l e v els at or a b o v e 5 0 p p m w o ul d b e pl a c e d i n t h e T S C A 

cell. 

• S e di m e nts. P C B- a n d P A H- c o nt a mi n at e d s e di m e nts w o ul d be r e m o v e d b y dr e d gi n g i n t h e o utf all 0 0 4 

strea m b a c k w at er area. S e di m e nts wit h P C B c o n c e ntr ati o ns l o w er t h a n 5 0 p p m w o ul d be 

st a bili z e d a n d c o ns oli d at e d u n d er t h e C M S D ca p i n t h e ori g m al d e cisi o n a n d s e di m e nts wit h 

P C B c o n c e ntr ati o n hi g h er t ha n 5 0 p p m w er e t o be dis p os e d of off-sit e. I n t h e E S D it w as d e ci d e d 

t o b uil d a T S C A cell as p art of t h e C M S D la n dfill a n d pl a c e all of t h e P C B- c o nt a mi n at e d 

s e di m e nts i n t h e cell. 

• Site- wi de. R estri cti o ns o n A c c ess a n d Us e of t h e Site: A c c ess t o t h e Sit e w o ul d be p h ysi c all y 

r estri ct e d b y i nst all ati o n a n d m ai nt e n a n c e of a 6-f o ot hi g h c h ai n li n k f e n c e t o p p e d wit h t hr e e 

str a n ds of b ar b e d wire. D e e d r estri cti o ns w er e t o be est a blis h e d t o pr o hi bit use of gr o u n d w at er 

f or dri n ki n g w at er u ntil cl e a n u p st a n d ar ds are a c hi e v e d a n d t o pr o hi bit us e of t h e Sit e f or 

r esi d e nti al p ur p os es. 

T he 1 9 9 7 E S D m a d e t w o c h a n g es t o t h e r e m e d y. T h e R O D ha d s p e cifi e d e x c a v ati o n t o 1 p p m P C Bs. 

1 9 9 7 T S C A pr ot o c ols all o w e d f or r esi d u al c o n c e ntr ati o n u p t o 1 0 p p m P C Bs if t h e s oil w as c o v er e d 

wit h a 1 0-i nc h l a y er of s oil. T h e r e m e d y at t he Sit e was c h a n g e d t o all o w f or t his a c c o m m o d ati o n. T h e 

ot h er c h a n g e all o w e d f or t he c o nstr u cti o n of a T S C A c o m pli a nt cell o n t h e Sit e, as m e nti o n e d a b o ve. 

Wit h t his c h a n g e, it was n ot n e c ess ar y t o ha ul s oils wit h gr e at er t ha n 5 0 p p m P C Bs t o a n off-sit e T S C A 

la n dfill, as all P C B- c o nt a mi n at e d s oils c o ul d n o w be pl a c e d i n t h e cell. T his r e m e d y c h a n g e w as 

i m pl e m e nt e d b e c a us e it w as f o u n d d uri n g r e m e di al desi g n s a m pli n g t h at t h er e w er e m or e s oils wit h 

gr e at er t h a n 5 0 p p m P C Bs t h a n pr e vi o usl y t h o u g ht. 

A s e c o n d E S D w as si g n e d o n M ar c h 2 6, 2 0 1 2. I n 2 0 0 9, Or m et r e q u est e d a p pr o v al fr o m E P A t o 

dis c o nti n u e t he o p er ati o n of t h e i nt er c e pt or wells a n d t he a c c o m p a n yi n g w at er tr e at m e nt s yst e m. Aft er 

e v al u ati n g t he pr o p os al, E P A d e ci d e d t o pr o c e e d wit h eli mi n ati n g t he r e q uir e m e nt f or a n i nt er c e pt or 

well a n d tr e at m e nt s yst e m at t h e R a n n e y well a n d iss u e d t h e s e c o n d E S D. 

E P A ga ve writt e n a p pr o v al i n a l ett er date d J a n u ar y 2 9, 2 0 1 3, t o d el et e P C Bs, b er ylli u m, a n d v a n a di u m 

fr o m t he list of c o nt a mi n a nts of c o n c er n. Pr e vi o us d at a ha d s h o w n t h es e p ar a m et ers t o be c o nsist e ntl y 

b el o w t he cl e a n u p g o als or n o n- d et e ct a bl e. A p pr o v al was als o gr a nt e d t o r e pl a c e c y a ni d e a m e n a bl e t o 

c hl ori n ati o n ( a m e n a bl e c y a ni d e) wit h w e a k aci d diss o ci a bl e ( W A D) c y a ni d e. W A D c y a ni d e is 

1 0 
c o nsi d er e d t o be a m or e r eli a bl e s urr o g at e f or free c y a ni d e, o n w hi c h t h e cl e a n u p g oal f or c y a ni d e is 

base d. 

St at us of I m pl e m e nt ati o n 

A C o ns e nt D e cr e e f or r e m e di al d esi g n a n d r e m e di al a cti o n b et w e e n Orr n et Pri m ar y Al u mi n u m 

C or p or ati o n a n d E P A w as e nt er e d o n D e c e m b er 1 8, 1 9 9 5. O hi o E P A w as n ot a p art y t o t his decree. T he 

re me dial desi g n w as a p pr o v e d A pril 1 5, 1 9 9 7, f oll o wi n g t he iss u a n c e of t h e E S D o n A pril 1, 1 9 9 7. T he 

re me dial a cti o n b e g a n o n A pril 1 4, 1 9 9 7. 

Re me dial acti o n a cti viti es were s e p ar at e d i nt o t w o dis cr et e p hases. T h e a cti viti es i n t h e first p h as e w er e 

p erf or m e d fr o m M ar c h t hr o u g h A pril 1 9 9 7. I n s u m m ar y, t h es e pr e- c o nstr u cti o n a cti viti es c o nsist e d of: 

• Pr e p ar ati o n of t h e H e alt h a n d S af et y/ C o nti n g e n c y Pl a n; 

• Pre parati o n of t h e B a c k w at er Ar e a Is ol ati o n Str u ct ur e s u b mitt al; a n d 

• Fi n ali z ati o n of t h e C o nstr u cti o n Q u alit y Ass ur a n c e Pr oj e ct Pla n. 

T he sec o n d p h as e w as c arri e d o ut fr o m Ma y 1 9 9 7 t o J u n e 1 9 9 8. I n s u m m ar y, t h es e c o nstr u cti o n 

a cti viti es c o nsist e d of: 

• Site pr e p ar ati o n; 

• Re m o val of c o nt a mi n at e d m at eri al fr o m p orti o ns of t h e C R D A; 

• R e- c o nt o uri n g t he C M S D; 

• I nstallati o n of t h e C M S D see p c oll e cti o n a n d tr e at m e nt s yst e m; 

• C o nstr u cti o n of t h e T S C A cell; 

• Rel ocati o n of t he o utf all 0 0 4 dis c h ar g e; 

• Re m o val of c o nt a mi n at e d s e di m e nt fr o m t h e b a c k w at er area; 

• I nstallati o n of t h e F S P S A s oil fl us hi n g s yste m a n d pl a c e m e nt of a v e g et ati v e s oil c o v er i n t he area; 

• C o nstr u cti o n of t h e Site fe nci n g; a n d 

• Site rest orati o n. 

T he R a n n e y well ha d b e e n o p er ati n g f or ma n y years t o f ur nis h w at er f or pl a nt o p er ati o ns a n d, si n c e 

pla nt cl os ure, as p art of t h e r e m e d y. C o nt a mi n at e d gr o u n d w at er was f o u n d t o be c o ntri b uti n g t o a 

pr o ble m wit h s c ali n g o n s urf a c es i n t h e pr o c ess w at er s yst e m b ef or e t h e gr o u n d w at er e nt er e d t he 

Ra n ne y well. Ar o u n d 1 9 7 2, t w o i nt er c e pt or wells w er e i nst all e d t o e xtr a ct t h e c o nt a mi n at e d 

gr o u n d w at er wit h o nl y o n e i nt er c e pt or well r u n at a ti me. I n a b o ut J u n e 1 9 9 4, a gr o u n d w at er tr e at m e nt 

s yste m was a d d e d t o t h e i nt er c e pt or wells t o r e d u c e t he c y a ni d e c o n c e ntr ati o ns. T his p u m pi n g s yste m 

was i n c or p or at e d i nt o t h e 1 9 9 4 r e m e d y t o c o nt ai n t he pl u m e a n d r e m o v e c o nt a mi n a nts fr o m t he 

gr o u n d water. T h e 2 0 1 2 E S D eli mi n at e d t h e r e q uir e m e nt f or a n i nt er c e pt or well a n d tr e at m e nt s yst e m at 

t he Ra n ne y well. T h e gr o u n d w at er el e v ati o n c o nt o urs i n A p p e n di x C, Fi g ur e 3 s h o w t h at t h e 

gr o u n d w at er i n t h e ar e a of t h e pl u m e is fl o wi n g g e n er all y n ort h e ast t o s o ut h w est t o w ar d t h e R a n n e y 

well, e x c e pt f or a s m all p orti o n of t h e pl u m e i n t h e e ast er n m ost p art of t h e Sit e w hi c h is n o l o n g er b ei n g 

c o ntai ne d. Pr e vi o us t o t h e dis c o nti n u a n c e of t h e use of t h e i nt er c e pt or well a n d tr e at m e nt s yst e m, t he 

gr o u n d w at er pl u m e w as b ei n g f ull y c o nt ai n e d. T his is f urt h er dis c uss e d l at er i n t his F Y R b e gi n ni n g m 

Data Re vie w. · 

T he a cti viti es of b ot h p h as es w er e p erf or m e d i n s u bst a nti al a c c or d a n c e wit h t he a p pr o v e d Fi nal Desi g n. 

T here were s o m e c h a n g es n e c essit at e d b y fiel d c o n diti o ns; t h es e c h a n g es w er e r e q u est e d b y Or m et a n d 

1 1 
a p pr o v e d b y E P A. C o nstr u cti o n c o m pl eti o n f or t h e Sit e w as r e a c h e d o n A u g ust 4, 1 9 9 8, wit h t h e 

iss u a n c e of t h e Pr eli mi n ar y Cl os e O ut R e p ort. A cti viti es at t h e Sit e w er e c o nsist e nt wit h t h e R O D a n d 

t h e E S D . 

I nstit uti o n al C o nt r ols 

I Cs ar e r e q uir e d b y t h e d e cisi o n d o c u m e nts t o r estri ct pr o p ert y us e, m ai nt ai n t h e i nt e grit y of t h e r e m e d y, 

a n d ass ur e t h e l o n g-t er m pr ot e cti v e n ess f or ar e as w hi c h d o n ot all o w f or U U/ U E. O w n er Or m et Pri m ar y 

Al u mi n u m C or p or ati o n, H ol d ers Or m et C or p or ati o n a n d Or m et Pri m ar y Al u mi n u m C or p or ati o n, a n d 

E P A e nt er e d i nt o a n E n vir o n m e nt al C o v e n a nt, u n d er t h e O hi o U nif or m E n vir o n m e nt al C o v e n a nts A ct, 

t h at w as r e c or d e d wit h t h e M o nr o e C o u nt y R e c or d er's Offi c e o n A pril 1 6 , 2 0 1 0. T h e E n vir o n m e nt al 

C o v e n a nts ar e bi n di n g u n d er t h e c urr e nt o w n er. A s u m m ar y of t h e i m pl e m e nt e d a n d pl a n n e d I Cs f or t h e 

Sit e is list e d i n T a bl e 2 a n d ar e f urt h er dis c uss e d b el o w. 

T bl 2 a e : u m m ar y o f Pl a n n e S d a n or di I ml t p e m e n e t d I C s 

M e di a, e n gi n e e r e d I Cs C alle d Titl e- 0f I C 

c o nt r ols, a n d a r e as t h at d o I Cs f or i n t he I m p a ct e d I C I nst r u m e nt 

n ot s u p p o rt U U/ U E b ase d N e e d e d D e cisi o n P a r c el(s} O bj e cti v e I m pl e m e nt e d a n d 

o n c u r r e nt c o n diti o ns-- D o c u m e nts D at e ( o r pl a n ne d) 

• Pr o hi biti o n o n use of 

gr o u n d w at er t h at w o ul d 

e ntail i n g esti o n or 

der mal c o nt a ct u ntil 

gr o u n d w at er cl e a n u p 

st a n d ar ds are a c hi e v e d, 

b ut s p e cifi c all y 

p er mitt e d p u m pi n g a n d 

use of gr o u n d w at er f or 

i n d ustrial p ur p os es ; 

• N o use or a cti viti es o n 

t he pr o p ert y t hat mi g ht 

i nterfere wit h t h e E n vir o n m e nt al 

o u o o r es p o ns e a cti viti es b ei n g C o v e n a nt r e c or d e d 

Site pr o pert y: gr o u n d w at er Y es Yes Or m et p erf or m e d p urs u a nt t o wit h t h e M o nr o e 

a n d s oils S u p erf u n d t he C o ns e nt D e cr e e C o u nt y , O hi o , 

Sit e wi d e u niess pri or writt e n R e gist er of D e e ds , 

a p pr o v al fr o m E P A is o n A pril 1 6 , 2 0 1 0 

o bt ai n e d ; 

• N o r esi d e nti al us e of 

t he pr o p ert y ; a n d 

• N o e x c a v ati o n, 

i nst all ati o n, c o nstr u cti o n , 

r e m o v al or use of a n y 

b uil di n g s, wells , pi p es , 

r o a ds, dit c h es or ot h er 

str u ct ur es at t h e Site 

e x c e pt wit h t h e e x pr ess 

pri or writt e n a p pr o v al b y 

E P A. 

1 2 
• Pr o hi biti o n o n us e of 

gr o u n d w at er t h at w o ul d 

e nt ail i n gest 1 0 n or 

d er m al c o nt a ct u ntil 

gr o u n d w at er cl e a n u p 

st a n d ar ds ar e a c hi e v e d, 

b ut s p e cifi c all y 

p er mitt e d p u m pi n g a n d 

use of gr o u n d w at er f or 

i n d ustri al p ur p os es; 

• N o us e or act 1 vit 1es o n 

t h e pr o p ert y t h at mi g ht 

i nt erf er e wit h t h e E n vir o n m e nt al 

Or m et r es p o ns e a cti viti es b ei n g C o v e n a nt, r e c or d e d R e d u cti o n pl a nt pr o p ert y: r e d u cti o n p erf or m e d p urs u a nt t o wit h t h e M o nr o e r e m e di al c o m p o n e nts, s oils, Y es Y es pl a nt t h e C o ns e nt D e cr e e C o u nt y, O hi o, a n d gr o u n d w at er pr o p ert y u nl ess pri or writt e n R e gist er of D e e ds a p pr o v al fr o m E P A 1s o n A p nl 1 6, 2 0 1 0 o bt ai n e d, 

• N o res 1 de nt 1al us e of 

t h e pr o p ert y, a n d 

• N o e x c a v at 1 0 n, 

i nst all ati o n, c o nstr u cti o n, 

r e m o v al or us e of a n y 

b uil di n gs, w ells, pi p es, 

r o a ds, dit c h es or ot h er 

str u ct ur es at t h e Sit e 

e x c e pt wit h t h e e x pr ess 

p n or writt e n a p pr o v al b y 

E P A 

A ma p s h o wi n g t h e ar e a i n w hi c h t h e I Cs a p pl y is i n cl u d e d i n A p p e n di x C, Fi g ur e 6 

C urr e nt C o m pli a n c e: B as e d o n t h e sit e i ns p e cti o n a n d dis c ussi o ns wit h t h e pr o p ert y o w n er a n d t h eir 

c o ntr a ct or, E P A is n ot a w ar e of Sit e or m e di a uses w hi c h are i n c o nsist e nt wit h t h e st at e d o bj e cti v es t o be 

a c hi e v e d b y t h e I Cs. T h e r e m e d y a p p e ars t o be f u n cti o ni n g as i nt e n d e d. N o Sit e us es w hi c h ar e 

i n c o nsist e nt wit h t h e i m pl e m e nt e d I Cs or r e m e d y I C o bj e cti v es h a v e b e e n n ot e d d uri n g t h e Sit e 

i ns p e cti o n. 

I C F oll o w u p A cti o ns N e e d e d: H a n ni b al D e v el o p m e nt P art n ers s h o ul d c o n d u ct a titl e s e ar c h t o e ns ur e 

I Cs ar e i n pl a c e f or e a c h p ar c el. E P A s h o ul d c o nfir m I Cs r e m ai n i n pl a c e a n d ar e eff e cti v e as p art of t h e 

n e xt F Y R. 

L o n g T er m St e w ar ds hi p: 

Si nce c o m pli a n c e wit h I Cs is n e c ess ar y t o ass ur e t h e pr ot e cti v e n ess of t h e r e m e d y, pl ar mi n g f or l o n gter m st e w ar ds hi p is r e q mr e d t o e ns ur e t h at t he I Cs ar e m ai nt ai n e d, m o nit or e d a n d e nf or c e d s o t h at t h e 

r e m e d y c o nti n u es t o f u n cti o n as i nt e n d e d. L o n g-t er m st e w ar ds hi p i n v ol v es ass uri n g eff e cti v e pr o c e d ur es 

are i n pl a c e t o pr o p erl y m ai nt ai n a n d m o nit or t he Site. L o n g-t er m st e w ar ds hi p will e ns ur e eff e cti v e I Cs 

are m ai nt ai n e d a n d m o nit or e d a n d t he r e m e d y c o nti n u es t o f u n cti o n as mt e n d e d wit h r e g ar d t o I Cs. T h e 

O & M Pla n w as a p pr o v e d o n A pril 7, 2 0 1 0. It i n cl u d es pr o c e d ur es t o e ns ur e l o n g-t er m I C st e w ar ds hi p 

i n cl u d m g r e g ul ar i ns p e cti o ns of t h e e n gi n e eri n g c o ntr ols a n d a c c ess c o ntr ols at t h e Site, r e vi e ws of t h e 

1 3 
I Cs, a n d r e p orts wit h r es ults of t h e i ns p e cti o n a n d r e vi e w. T h e l at est S e mi a n n u al I Cs M o nit ori n g r e vi e w 

s u b mitt e d at t h e Sit e s h o w e d t h at I Cs w er e i n pl a c e a n d eff e cti v e. 

S yst e ms O p e r ati o ns/ O p e r ati o n & M ai nt e n a n c e 

H a n ni b al D e v el o p m e nt P art n ers p ur c h as e d t h e Or m et C or p. Sit e i n 2 0 1 4 a n d h as si n c e ass u m e d 

o p er ati o n a n d m ai nt e n a n c e ( O & M) of t h e Sit e r e m e d y. S e e III. Pr o gr ess Si n c e t h e L ast R e vi e w b el o w. 

O & M a cti viti es at t h e Sit e ar e d o c u m e nt e d i n a m o nt hl y o p er ati o n l o g or s e mi a n n u al l o g f or I C 

m o nit ori n g. L o gs ar e c o m pl et e d f or: 

C M S D S e e p C oll e cti o n S yst e m: I ns p e cti o n of t h e s u m p c o v er, s u m p c asi n g a n d li q ui d dis c h ar g e li ne t o 

d et er mi n e if a n y d et eri or ati o n is pr es e nt. I ns p e cti o n of t h e pr ess ur e g a u g e, le vel s wit c h es, p u m p, a n d 

hi g h le vel i n di c at or t o d et er mi n e pr o p er o p er ati o n. N o fl o w h as b e e n d et e ct e d i n t h e C M S D S e e p 

C oll e cti o n S yst e m si n c e t h e will o w tr e es w er e pl a nt e d i n 2 0 1 1. 

C M S D Pr e-tr e at m e nt S yst e m: Pr ess ur e m e as ur e m e nts ar e t a k e n t o d et er mi n e s yst e m i nl et pr ess ur e, 

pr ess ur e dr o p a cr oss b a g filt er, i nl et pr ess ur e t o oil a bs or b e nt dr u m, i nl et pr ess ur e t o c ar b o n, 

i nt er m e di at e c ar b o n pr ess ur e, dis c h ar g e pr ess ur e, pr ess ur e dr o p a cr oss oil a bs or b e nt dr u m, pr ess ur e dr o p 

a cr oss c ar b o n tr e at m e nt. D uri n g t h e l ast fi ve y e ars, n o fl o w or pr ess ur e r e a di n gs i n C M S D Pr e-tr e at m e nt 

S yst e m h a v e b e e n d et e ct e d si n c e will o w tr e es w er e pl a nt e d i n 2 0 1 1. 

F S P S A Fl us hi n g S yst e m: I ns p e cti o n of t h e c o v er a g e b y F S P S A Fl us hi n g S yst e m, p u m p, pr ess ur e 

r e g ul ati n g v al v e, a n d s pri n kl er o p er ati o n. Fl o w w at er r e a di n g, s yst e m pr ess ur e s etti n g, t otal fl o w, a n d 

ti m er s etti n gs ar e r e c or d e d. D uri n g t h e l ast fi ve y e ars, p u m ps t o all e vi at e p o oli n g i n t h e s pr a yfi el d w er e 

r e m o v e d, r e p air e d, a n d r e pl a c e d a n d s pri n kl ers w er e r e pl a c e d aft er b ei n g hit b y a m o w er. 

S e mi a n n u al I Cs M o nit ori n g: I ns p e cti o n of t h e sit e t o d et er mi n e c o nsist e n c y wit h I Cs o n Site. C h e c klist 

d et er mi n es if t h er e is a n y use or a cti vit y t h at w o ul d i nt erf er e wit h t h e R e m e di al A cti o n, if gr o u n d w at er 

is b ei n g us e d e x c e pt f or i n d ustri al use, if a well h as b e e n c o nstr u ct e d, if t h er e is r esi d e nti al us e of t he 

pr o p ert y, if t h er e h as b e e n a n y a cti vit y r e q uiri n g n otifi c ati o n t o E P A, a n d if R e m e di al A cti o n is r e q uir e d. 

D uri n g t h e last fi ve y e ars, n o vi ol ati o ns of t he I Cs w er e r e p ort e d. 

III. P R O G R E S S SI N C E T H E L A S T R E VI E W 

T he Site w as d et er mi n e d t o m e et t h e r e q uir e m e nts f or Sit e wi d e R e a d y f or A nti ci p at e d Us e b y E P A o n 

S e pt e m b er 6, 2 0 1 2. T h e 2 0 1 2 a n n u al gr o u n d w at er m o nit ori n g r e p ort w as s u b mitt e d b y H MI 

E n vir o n m e nt al C o ns ulti n g S er vi c es o n b e h alf of Or m et. B as e d u p o n t h at r e p ort, o n J a n u ar y 2 9, 2 0 1 3, 

E P A a p pr o v e d a s hift fr o m tri- a n n u al (t hr e e ti m es p er y e ar) gr o u n d w at er s a m pli n g t o a n n u al s a m pli n g 

st arti n g i n 2 0 1 3. P C Bs, b er ylli u m, a n d v a n a di u m w er e als o d el et e d fr o m t h e list of gr o u n d w at er 

c o nt a mi n a nts of c o n c er n as d at a h a d s h o w n t h at t h es e p ar a m et ers w er e c o nsist e ntl y b el o w cl e a n u p g o als 

or n o n- d et e ct a bl e i n t h e fi v e- y e ars l e a di n g u p t o t he 2 0 1 2 F Y R f or t h e Site. Fi n all y, t h e cl e a n u p g oal f or 

c y a ni d e w as c h a n g e d fr o m b ei n g b as e d o n c y a ni d e a m e n a bl e t o c hl ori n ati o n t o W A D c y a ni d e. W A D 

c y a ni d e is c o nsi d er e d t o b e a m or e r eli a bl e s urr o g at e f or free c y a ni d e. T h e 2 0 1 3 a n n u al gr o u n d w at er 

m o nit ori n g r e p ort w as s u b mitt e d b y Lei d os E n gi n e eri n g L L C o n b e h alf of Or m et. 

1 4 
O n n et C or p. file d f or C h a pt er 1 1 b a n kr u pt c y o n F e br u ar y 2 5, 2 0 1 3. Or m et C or p. s u bs e q u e ntl y s ol d 

s p e cifi c ass ets of t h e Or m et F a cilit y t o H a n ni b al D e v el o p m e nt P art n ers, L L C i n J ul y 2 0 1 4. T h e 

pr o p erti es a c q uir e d b y H a n ni b al D e v el o p m e nt P art n ers i n cl u d e t h e r e d u cti o n pl a nt pr o p ert y a n d t h e 

O n n et C or p. S u p erf u n d Site. H a n ni b al D e v el o p m e nt P art n ers si g n e d a j oi nt m oti o n t o s u bstit ut e Ni a g ar a 

W orl d wi d e, L L C ( p ar e nt c o m p a n y t o H a n ni b al D e v el o p m e nt P art n ers), f or Or m et Pri m ar y Al u mi n u m 

C or p or ati o n as t h e n a m e d d ef e n d a nt u n d er t h e C o ns e nt D e cr e e, u p o n a n d p urs u a nt t o t h e s c h e d ul e d 

tr a nsf er of i nt er est at cl osi n g. H a n ni b al D e v el o p m e nt P art n ers h as ass u m e d r es p o nsi bilit y f or t h e 

c o nti n u e d o p er ati o n, m ai nt e n a n c e, a n d m o nit ori n g of t h e S u p erf u n d Sit e, i n cl u di n g t h e a n n u al 

gr o u n d w at er m o nit ori n g. O & M r e p orts a n d A n n u al R e m e di al A cti o n Gr o u n d w at er M o nit ori n g R e p orts 

ha ve b e e n s u b mitt e d b y G e o R es o ur c e Gr o u p o n b e h alf of H a n ni b al D e v el o p m e nt P art n ers si n c e 2 0 1 4. 

Si n c e its a c q uisiti o n of t h e Sit e, H a n ni b al D e v el o p m e nt P art n ers h as c o n d u ct e d a v ari et y of d e m oliti o n 

a cti viti es t o pr e p ar e a tr a nsiti o n fr o m a n a b a n d o n e d i n d ustri al f a cilit y t o its f ut ur e use. 

T h e f oll o wi n g is t h e pr ot e cti v e n ess d et er mi n ati o n a n d st at e m e nt fr o m t h e l ast F Y R. T h e 2 0 1 2 F Y R di d 

n ot i d e ntif y a n y iss u es n or r e c o m m e n d ati o ns aff e cti n g t h e pr ot e cti v e n ess of t h e r e m e d y. 

T a bl e 3: Pr ot e cti v e n ess D et er mi n ati o ns/ St at e m e nts fr o m t h e 2 0 1 2 F Y R 

O U # P r ot e cti v e n ess P r ot e cti v e n ess St at e m e nt D et e r mi n ati o n 

Site wi de Pr otecti ve T h e r e m e d y at t h e Or m et C or p. S u p erf u n d Sit e is 

pr ot e cti v e of h u m a n h e alt h a n d t h e e n vir o n m e nt i n 

b ot h t h e s h ort- a n d l o n g-t er m. E x p os ur e p at h w a ys 

t h at c o ul d r es ult i n u n a c c e pt a bl e ris ks ar e b ei n g 

c o ntr oll e d a n d a n E n vir o n m e nt al C o v e n a nt is 

pr e v e nti n g e x p os ur e t o c o nt a mi n at e d gr o u n d w at er 

a n d la n d. T hr e ats at t h e Sit e h a v e b e e n a d dr ess e d 

t hr o u g h c a p pi n g, e x c a v ati o n, s oil fl us hi n g, pl u m e 

c o nt ai n m e nt, i nst all ati o n of f e n ci n g, a n d 

i m pl e m e nt ati o n of i nstit uti o n al c o ntr ols. 

I V. FI V E- Y E A R R E VI E W P R O C E S S 

C o m m u nit v N otifi c ati o n, I n v ol v e m e nt & Sit e I nt e r vi e ws 

A p u bli c n oti c e w as m a d e a v ail a bl e b y n e ws p a p er p osti n g i n t w o l o c al n e ws p a p ers, t h e M o nr o e B e a c o n 

o n 1 1/ 2 4/ 2 0 1 6, a n d t h e M o nr o e C o u nt y S e nti n el o n 1 1/ 2 8/ 2 0 1 6, st ati n g t h at E P A w as c o n d u cti n g a F Y R 

a n d i n viti n g t h e p u bli c t o s u b mit a n y c o m m e nts t o E P A ( A p p e n di x D). E P A r e c ei v e d n o c o m m u nit y 

c o m m e nts r e g ar di n g t h e Or m et C or p. S u p erf u n d Sit e Fi v e Y e ar R e vi e w pr o c ess. T h e Or m et C or p. 

S u p erf u n d w e bsit e w as u p d at e d b y t h e E P A C o m m u nit y I n v ol v e m e nt C o or di n at or i n D e c e m b er 2 0 1 6. 

T h e r es ults of t h e r e vi e w a n d t h e r e p ort will be m a d e a v ail a bl e at t h e Sit e i nf or mat 1 0 n r e p osit or y l o c at e d 

at M o nr o e C o u nt y P u bli c Li br ar y at 9 6 H o m e A v e n u e, W o o dfi el d, O hi o, a n d o nli n e at t h e Or m et C or p. 

S u p erf u n d W e bsit e, w w w. e p a. g o v/s u p erf u n d/ or m et- c or p. 

] 5 
D at a R e vi e w 

O & M r e p orts w er e s u b mitt e d b y Or m et C or p. i n 2 0 1 2, 2 0 1 3 a n d H a n ni b al D e v el o p m e nt P art n ers i n 

2 0 1 6. D uri n g t h e 2 0 1 4 a n d 2 0 1 5 tr a nsiti o n fr o m Or m et C or p. t o H a n ni b al D e v el o p m e nt P art n ers O & M 

r e p orts w er e n ot s u b mitt e d. H a n ni b al D e v el o p m e nt P art n ers' c o ns ult a nt d o c u m e nt e d c h a n g es a n d 

u p dates i n c o v er l ett ers s u b mitt e d wit h t h e A n n ual R e m e di al A cti o n Gr o u n d w at er M o nit ori n g Re p orts. 

Gr o u n d w at er m o nit ori n g is c o n d u ct e d u n d er t h e t er ms of a C o ns e nt D e cr e e b et w e e n Or m et a n d E P A 

( D e c e m b er 1 8, 1 9 9 5, r e vis e d M ar c h 1 l, 2 0 0 9) a n d t h e R e m e di al A cti o n Gr o u n d w at er M o nit ori n g Pla n 

R e visi o n 1 ( A pril 2 8, 1 9 9 7). T h e St at e m e nt of W or k ( S O W) att a c h e d t o t h e C o ns e nt D e cr e e s p e cifi es 

t h at t he p ur p os e of gr o u n d w at er m o nit ori n g is t o d o c u m e nt a n d e v al u at e c h a n g es i n t h e gr o u n d w at er 

c o n diti o n b e n e at h t h e site ass o ci at e d wit h t h e r e m e di al acti o ns. O n J a n u ar y 2 9, 2 0 1 3, E P A a p pr o v e d a 

s hift fr o m tri- a n n u al s a m pli n g t o a n n u al gr o u n d w at er m o nit ori n g b e gi n ni n g wit h t h e 2 0 1 3 re p ort. 

D o c u m e nts r e vi e w e d as p art of t h e F Y R i n cl u d e, 2 0 1 2, 2 0 1 3, 2 0 1 4, 2 0 1 5 a n d 2 0 1 6 A n n u al R e m e di al 

Acti o n Gr o u n d w at er M o nit ori n g R e p orts ( A p p e n di x A). 

T he f oll o wi n g w ells are m e as ur e d f or w at er le vel el e v ati o n d at a as p art of gr o u n d w at er m o nit ori n g (f or 

Site m a p s h o wi n g all m o nit ori n g w ells see A p p e n di x C, Fi g ur e 1 ): 

M W- 1 M W- 2 0 M W- 3 9 S & D 

M W- 2 M W- 2 1 S & D M W- 4 0 S & D 

M W- 3 M W- 2 2 S & D M W- 4 1 

M W- 4 M W- 2 3 S & D M W- 4 2 S & D 

M W- 5 M W- 2 4 S & D M W- 4 4 S & D 

M W- 7 M W- 2 5 P P B- 0 2 d + 

M W- 8 M W- 2 6 S & D P P B- 0 4 + 

M W- 9 M W- 2 7 P P B- 0 6 + 

M W- J O M W- 2 8 P P B- 0 9 + 

M W- 1 1 M W- 2 9 S & D P P B- 0 2 + 

M W- 1 2 M W- 3 0 T H- 3 

M W- 1 3 M W- 3 1 T H- J O 

M W- 1 4 M W- 3 2 T H- 1 1 

M W- 1 5 M W- 3 4 S & D T H- 1 5 

M W- 1 6 M W- 3 5 T H- 1 6 

M W- 1 7 M W- 3 6 T H- 1 7 

M W- 1 8 M W- 3 7 R P- 1 

M W- 1 9 M W- 3 8 R P- 2 

T he f oll o wi n g w ells are s a m pl e d as p art of gr o u n d w at er m o nit ori n g: 

M W-I M W- 1 5 M W- 3 2 * 

M W- 2 * M W- 1 6 * M W- 3 4 S & D 

M W- 5 * M W- 1 7 M W- 3 5 * 

M W- 7 M W- 1 8 * M W- 3 6 * 

M W- 8 M W- 1 9 M W- 3 7 * 

M W- J O M W- 2 8 * M W- 3 9 S & D 

M W- 1 1 M W- 2 9 S & D M W- 4 0 S & D 

M W- 1 2 * M W- 3 0 M W- 4 2 S & D 

M W- 1 4 M W- 3 1 * 

1 6 
M W- 7 a n d M W- 1 9 ar e r e g ar d e d as b a c k gr o u n d m o nit ori n g w ells; t h e r est ar e gr o u n d w at er m o nit ori n g 

w ells. T h e R A Gr o u n d w at er M o nit ori n g Pl a n d esi g n at e d t h e w ells m ar k e d wit h * as P oi nts of 

C o m pli a n c e as r e q uir e d u n d er S e cti o n II. 6 of t h e C o ns e nt D e cr e e S O W (f or Sit e m a p s h o wi n g s a m pl e d 

m o nit ori n g w ells s e e A p p e n di x C, Fi g ur e 2). A s u m m ar y of t h e m ost r e c e nt ( 2 0 1 6) gr o u n d w at er 

m o nit ori n g r e p ort v al u es f or c o nt a mi n a nts of c o n c er n ( C O Cs) i n t h e c o m pli a n c e w ells c a n b e f o u n d i n 

T a bl e 4 b el o w. 

I n 2 0 1 5, s e v er al w ells c o ul d n ot b e l o c at e d or a c c ess e d. T h er ef or e, t h e y c o ul d n ot b e s a m pl e d d uri n g t h e 

2 0 1 5 s a m pli n g e v e nt. M W- 1 a n d M W- 4 0 S & D h a d n e w l o c ks a n d n o k e y. M W- 2 ( a c o m pli a n c e w ell), 

M W- 8 a n d M W- 2 7 c o ul d n ot b e l o c at e d a n d w er e list e d as " W ell Missi n g". I n 2 0 1 6, t h es e w ells w er e all 

l o c at e d a n d t est e d as p art of t h e a n n u al gr o u n d w at er m o nit ori n g e v e nt. M W- 4 0 S w as n ot t est e d i n 2 0 1 6. 

M W- 2 a n d M W- 5 ar e us u all y m o nit or e d f or P C E, b ut w er e n ot t est e d f or P C E i n 2 0 1 6. 

G r o u n d w at e r fl o w 

Gr o u n d w at er el e v ati o ns m e as ur e d at t h e Sit e s h o w t h at t h e w at er t a bl e u n d er m u c h of t h e Sit e is d e e p er 

t h a n t h e w at er l e v el of t h e O hi o Ri v er. T h e gr o u n d w at er fl o w i n t h e all u vi al a q uif er b e n e at h t h e Sit e is 

g e n er all y n ort h e ast t o s o ut h w est, t o w ar d t h e Or m et r e d u cti o n pl a nt R a n n e y w ell. Pl ots of t h e 

c o n c e ntr ati o ns of c o nt a mi n at e d fl u ori d e, t ot al c y a ni d e a n d W A D c y a ni d e s h o w t h e c o nt a mi n at e d pl u m e 

e xt e n di n g fr o m t h e F S P S A ar e a d o w n gr a di e nt t o t h e R a n n e y W ell. 

I n t h e e ast er n m ost s e cti o n of t h e Sit e, e ast of F D P- 5 a n d s o ut h e ast of t h e f or m er r e cr e ati o n y ar d, a 

c o m p o n e nt of t h e gr o u n d w at er fl o w a p p e ars t o b e i n t h e e ast-s o ut h e ast dir e cti o n t o w ar d t h e O h m Ri v er. 

T his fl o w p att er n, first i d e ntifi e d i n 2 0 1 4, w as als o pr es e nt i n 2 0 1 5 a n d 2 0 1 6. T h e R a n n e y w ell 

hist ori c all y p u m p e d n e arl y 4 milli o n g all o ns p er d a y w h e n it w as us e d f or pr o c ess w at er, b ut si n c e pl a nt 

cl os ur e it h as b e e n o p er ati n g at t h e mi ni m u m p u m pi n g r at e s p e cifi e d i n t h e R O D, w hi c h is 1 milli o n 

g all o ns p er d a y. I n a d diti o n, t h e 2 0 1 2 E S D eli mi n at e d t h e r e q uir e m e nt f or a n i nt er c e pt or w ell a n d 

tr e at m e nt s yst e m at t h e R a n n e y well a n d p u m p a g e of t h e pl u m e b y t h e i nt er c e pt or well w as st o p p e d. 

T his r es ults i n a l o w er h y dr a uli c gr a di e nt t o w ar ds t h e R a n n e y w ell. W hil e t h e p u m pi n g of t h e R a n n e y 

well a p p e ars t o c o nt ai n t h e m aj orit y of t h e pl u m e, t h e c urr e nt p u m pi n g r at e d o es n ot est a blis h a n d 

m ai nt ai n a f ull c a pt ur e z o n e of c o nt a mi n at e d gr o u n d w at er i n t h e all u vi al a q uif er, as r e q uir e d i n t h e R O D 

a n d t h e 1 9 9 5 C o ns e nt D e cr e e (s e e VI. Iss u es a n d R e c o m m e n d ati o ns). It is n ot k n o w n at t his ti m e 

w h et h er t h e p orti o n of t h e pl u m e n ot c a pt ur e d c o nt ai ns c o n c e ntr ati o ns of Sit e c o nt a mi n a nts of c o n c er n 

si n c e t h e m o nit ori n g w ell i n t h at s e cti o n of t h e Sit e, M W- 2 0, is n ot s a m pl e d as p art of t h e a n n u al 

s a m pli n g e v e nt. I n cr e asi n g a n d d e cr e asi n g tr e n ds i n C O C c o n c e ntr ati o ns dis c uss e d b el o w m a y be r el at e d 

t o t h e c h a n g e i n h y dr a uli c gr a di e nt. 

C y a ni d e 

T h e cl e a n u p g o al f or c y a ni d e est a blis h e d i n t h e R O D is 0. 2 m g/ L, t h e S af e Dri n ki n g W at er A ct M C L f or 

free c y a ni d e. E P A gr a nt e d a p pr o v al o n J a n u ar y 2 9, 2 0 1 3 t o us e W A D c y a ni d e as a s urr o g at e f or fr e e 

c y a ni d e i n d et er mi ni n g c o m pli a n c e wit h t h e M C L. As of t h e 2 0 1 6 a n n u al gr o u n d w at er m o nit ori n g e v e nt, 

t ot al c y a ni d e c o n c e ntr ati o ns s h o w d e cr e asi n g tr e n ds at 1 0 of t h e 1 1 c o m pli a n c e w ells, wit h t h e e x c e pti o n 

b ei n g M W- 3 5 w hi c h w as O . 2 8 m g/ L. D e cr e asi n g c o n c e ntr at 1 0 n tr e n ds f or t ot al c y ar n d e h a v e b e e n 

o bs er v e d ar o u n d t h e F S P S A ar e a at M W- 7, M W- 5, M W- 2 a n d M W- 4 S & D. S o ut h of t h e F S P S A a n d 

n ort h of t h e C M S D t h er e is a n ot e d i n cr e asi n g tr e n d i n t ot al c y a ni d e c o n c e ntr ati o ns i n M W- 1 2, M W- 1 4, 

1 7 
M W- 3 9 D, a n d M W- 4 2 S & D. T h e i n cr e asi n g tr e n d i n t h e s o ut h e ast er n p orti o n of t he Sit e c o ul d be 

relate d t o t h e r e d u c e d p u m pi n g of t h e R a n n e y well a n d l o w er h y dr a uli c gr a di e nt c a usi n g a diff er e nt 

mi gr ati o n of C O Cs. M W- 1 1 a n d M W- 8 als o s h o w a n a p p ar e ntl y i n cr e asi n g tr e n d. T h e hi g h est 

c o n c e ntr ati o n of t ot al c y a ni d e o bs er v e d is at M W- 1 8, dir e ctl y w est of t h e F S P S A, at 8. 2 m g/ L, f oll o w e d 

b y M W- 2 at 5. 3 m g/ L. W A D c y a ni d e c o n c e ntr ati o ns ar e t y pi c all y m u c h l o w er t h a n t otal c y a ni d e 

c o n c e ntr ati o ns a cr oss t h e Site. W A D c y a ni d e c o n c e ntr ati o ns e x c e e d e d t h e 0. 2 m g/ L M C L f or free 

c y a ni d e at M W- 3 5 (i n t h e F S P S A) at 0. 2 8 m g/ L, M W- 3 0 ( w est of t h e F S P S A) at 0. 3 3 m g/ L, a n d at 

M W- 1 4 ( dir e ctl y w est of F D P- 5 a n d n ort h of t h e C M S D) at 0. 2 6 m g/ L. 

Fl u o ri d e 

T he cl e a n u p g oal f or fl u ori d e est a blis h e d i n t he R O D is 4. 0 m g/ L, t he M C L f or fl u ori d e. D e cr e asi n g 

c o n c e ntr ati o n tr e n ds f or fl u ori d e h a v e b e e n o bs er v e d ar o u n d t h e F S P S A ar e a at M W- 2 a n d M W- 4 S & D. 

T he s o ut h er n m ost well i n t h e F S P S A, M W- 1 7 s h o ws a n a p p ar e nt i n cr e asi n g tre n d. S o ut h of t h e F S P S A 

a n d n ort h of t he C M S D, t h er e is a n ot e d i n cr e asi n g tr e n d i n fl u ori d e at M W- 1 2, M W- 1 4, M W- 2 9 S & D, 

M W- 3 9 S & D a n d M W- 4 2 S & D. Fl u ori d e c o n c e ntr ati o ns h a v e c o nsist e ntl y b e e n b el o w t h e M C L at 

c o m pli a n c e wells M W- 1 2, M W- 2 8, a n d M W- 3 7, b ut r e m ai n a b o v e t h e M C L at c o m pli a n c e w ells M W3 2, M W- 3 5, M W- 3 6 ( F S P S A), M W- 1 6, M W- 1 8, M W- 3 1 ( d o w n gr a di e nt fr o m F S P S A), M W- 2, a n d 

M W- 5 (i n t h e mi d pl a nt area). As of 2 0 1 6, M W- 1 6, M W- 1 8, M W- 3 2, M W- 3 9 S & D, a n d M W- 4 0 S & D 

s h o w c o n c e ntr ati o ns gr e at er t h a n ni n e ti m es t he M C L cl e a n u p g oal. 

I n rece nt hist or y, t h e hi g h est v al u es m e as ur e d o nsit e h a v e b e e n at M W- 3 9 S. B et w e e n 2 0 1 2 a n d 2 0 1 6 

t he v al u es ha ve r a n g e d fr o m 1 1 0 m g/ L t o 1 5 0 m g/ L, m e as ur e d i n 2 0 1 6. T h e s a m pli n g e v e nt i n 2 0 1 6 

s h o w e d t h at M W- 1 4 (s o ut h of F D P- 3) h a d a l ar g e i n cr e as e i n fl u ori d e c o n c e ntr ati o ns c o m p ar e d t o 2 0 1 5, 

i n cr e asi n g fr o m 4. 9 m g/ L t o 3 8 m g/ L. T his c h a n g e c o ul d als o be a n i n di c at or t h at t h e pl u m e ma y h a v e 

c h a n g e d p ositi o n d ue t o t h e d e cr e as e d p u m pi n g of t h e R a n n e y well. T his s h o ul d be m o nit or e d i n t h e 

f ut ure t o d et er mi n e if a tr e n d is pr es e nt. 

A rs e ni c 

T he cl e a n u p g oal f or ars e ni c est a blis h e d i n t he R O D is 0. 0 1 m g/ L, t h e M C L. L e v els of ars e ni c i n t h e 

gr o u n d w at er a p p e ar t o be g e n er all y d e cr e asi n g. C o m pli a n c e w ells M W- 2, M W- 1 6, M W- 1 8, M W- 3 1, 

M W- 3 5, M W- 3 6 a n d M W- 3 7 s h o w d e cr e asi n g v al u es, w hil e M W- 5, M W- 1 2, M W- 2 8, M W- 3 5, M W- 3 6 

a n d M W- 3 7 are alr e a d y b el o w t h e cl e a n u p g oal f or ars e ni c. Wit hi n t h e F S P S A, M W- 3 2 a n d M W- 3 4 

S & D, teste d a b o v e t h e M C L f or ars e ni c al o n g wit h M W- 1 6, M W- 1 8, a n d M W- 3 1 ( d o w n gr a di e nt fr o m 

t he F S P S A) a n d M W- 2, M W- 7 (i n t h e mi d pl a nt area). Or m et ha d pr e vi o usl y pr o p os e d t h at t h e 

b a c k gr o u n d le vel f or ars e ni c, a n d h e n c e t he cl e a n u p g oal, s h o ul d be 0. 0 4 m g/ L. E P A d o es n ot a gr e e wit h 

t his s u g g esti o n. 

M a n g a n es e 

T he cl e a n u p g oal f or m a n g a n es e is est a blis h e d i n t he R O D as 0. 2 3 m g/ L. M a n g a n es e l e v els h a v e s h o w n 

a d e cr e as m g tre n d at c o m pli a n c e w ells M W- 5, M W- 1 6, M W- 1 8, M W- 2 8, M W- 3 1, M W- 3 2, a n d M W3 7. I n 2 0 1 6, m a n g a n es e c o n c e ntr ati o ns w er e b el o w t h e R O D-s p e cifi e d cl e a n u p le vel at M W- 5, M W- 1 8, 

M W- 3 1, a n d M W- 3 7. M a n g a n es e v al u es r e m ai n a b o v e t h e M C L wit hi n t h e F S P S A at c o m pli a n c e wells 

M W- 3 2, M W- 3 5, M W- 3 6, a n d M W- 3 7, d o w n gr a di e nt of t he F S P S A at M W- 1 6 a n d i n t he mi d pl a nt 

1 8 
area at M W- 2. T h e hi g h est v al u e f or m a n g a n es e o n Sit e was d o w n gr a di e nt of t h e C M S D at M W- 1 2 at 

3. 2 m g/ L. 

Or m et ha d pr e vi o usl y pr o p os e d t h at t h e b a c k gr o u n d l e v el f or m a n g a n es e, a n d h e n c e t h e cl e a n u p g oal, 

s h o ul d b e 9. 8 m g/ L. E P A d o es n ot a gr e e wit h t his pr o p os al. 

T a bl e 4: C O C C o n c e ntr ati o ns at C o m pli a n c e W ells 

W A D C y a ni d e Fl u o ri d e A rs e ni c M a n g a n es e 

R O D Cl e a n u p G o al 0 2 m g/ L 4 0 m g/ L 0 0 1 m g/ L 0 2 3 m g/ L 

Wit hi n F S P S A 

M W- 3 2 0. 0 2 7 4 8 0. 0 3 6 0. 6 

M W- 3 5 0. 2 8 5. 4 < 0. 0 1 0 0. 6 2 

M W- 3 6 0. 0 5 4 1 2 < 0. 0 1 0 0. 2 6 

M W- 3 7 0. 0 2 8 1. 9 < 0. 0 1 0 < 0. 0 1 5 

D o w n g r a di e nt 

fr o m F S P S A 

M W- 1 6 < 0. 1 4 7 0. 0 2 6 0. 4 8 

M W- 1 8 < 0. 1 4 4 0. 0 4 2 0. 1 

M W- 2 8 0. 0 1 < 1. 0 < 0. 0 1 0 < 0. 0 1 5 

M W- 3 1 < 0. 0 5 2 4 0. 0 1 7 0. 1 7 

Mi d Pl a nt A r e a 

M W- 2 0. 1 2 2 3 0. 0 3 4 0. 7 8 

M W- 5 < 0. 0 1 2 8 < 0. 0 1 0 0. 1 5 

D o w n g r a di e nt 

fr o m C M S D 

M W- 1 2 0. 1 8 1. 6 < 0. 0 1 0 3. 2 

2 0 1 6 gr o u n d w at er m o nit ori n g c o n c e ntr ati o ns f or C O Cs at t h e 1 1 c o m pli a n c e w ells E x c e e d a n c es fr o m t h e R O D 

cl e a n u p g oal ar e s h o w n i n b ol d. 

Site I ns p e cti o n 

A n i ns p e cti o n of t h e Sit e was c o n d u ct e d o n l l / 1 6/ 2 0 1 6. I n att e n d a n c e w er e K at h eri n e T h o m as, Ti m 

Fis c h er ( E P A); S h a n n o n C o o k, J o h n R o c h ott e, D a ni el Tj o el k er ( O hi o E P A); Eric S pirt as, Ji m M ori arit y, 

Darrell P h ytli k ( Ni a g ar a W orl d wi d e, H a n ni b al D e v el o p m e nt P art n ers, C e nt er P oi nt T er mi n al), a n d B o b 

Far g o ( G e o R es o ur c e Gr o u p). T h e p ur p os e of t h e i ns p e cti o n w as t o ass ess t h e pr ot e cti v e n ess of t he 

re me d y. T he Sit e I ns p e cti o n C h e c klist ca n be f o u n d i n A p p e n di x E. 

D uri n g t he i ns p e cti o n, E P A o bs er v e d t h e c o m p o n e nts of t he s pr a yfi el d t o be o p er ati o n al a n d i n g e n er all y 

g o o d c o n diti o n. S o m e p o oli n g was wit n ess e d o n t h e s pr a yfi el d, d es pit e c h a n g es m a d e t o t he o p er ati o n al 

s c h e d ul e t o r e d u c e p o oli n g. T h e f e n ci n g a n d si g n a g e ar o u n d t h e sit e w er e g e n er all y i n g o o d s h a p e a n d 

u p t o s p e cifi c ati o ns, t h o u g h s o m e d a m a g e t o t he fe nce w as n ot e d n e ar t h e g at e t o t h e F S P S A as e nt eri n g 

fr o m t h e r e d u cti o n pl a nt facilit y. T h er e w er e n o si g ns of tr es p ass. M o nit ori n g w ells w er e f o u n d t o be i n 

1 9 
g o o d c o n diti o n, cl e arl y l a b el e d a n d visi bl e, a n d l o c k e d a cr oss t h e facilit y. N o si g ns of d a m a g e w er e 

n ote d at a n y m o nit ori n g well e x a mi n e d. Will o w trees b ei n g use d t o c o ntr ol l e a c h at e s e e p a g e w er e f o u n d 

t o be gr o wi n g a n d a p p e ar e d h e alt h y. I n S e pt e m b er 2 0 1 6, E P A was n otifi e d b y H a n ni b al D e v el o p m e nt 

P art n ers t h at a n i n d ustri al f a cilit y 3 mil es u pri v er o n t h e W est Vir gi ni a si d e of t h e O hi o Ri v er ha d a 

c hl ori n e r el e as e. H a n ni b al D e v el o p m e nt P art n ers c o nt a ct e d a tr e e c o ns ult a nt, a n d t he will o w tr e es w er e 

pr u n e d a n d b ei n g m o nit or e d f or p ossi bl e d a m a g e fr o m t h e air b or n e c hl ori n e pl u m e. T h e i dl e p w n p 

f or merl y us e d f or c oll e cti n g l e a c h at e w as f o u n d at t h e t o p of t h e C M S D. T h e c o v er t o t h e C M S D was i n 

g o o d c o n diti o n wit h v e g et ati v e c o v er b ei n g m ai nt ai n e d a n d m o w e d. T h e R a n n e y well p u m p c o nti n u es t o 

be o p er ati o n al a n d is i n a s e c ur e d b uil di n g i nsi d e t h e fe nce d ar e a of t h e f or m er r e d u cti o n pl a nt facilit y. 

V. T E C H NI C A L A S S E S S M E N T 

Q U E S TI O N A: Is t h e r e m e d y f u n cti o ni n g as i nt e n d e d b y t h e d e cisi o n d o c u m e nts ? 

Q u esti o n A S u m m a r y: 

Yes. T he r e m e d y is f u n cti o ni n g as i nt e n d e d b y t h e d e cisi o n d o c u m e nts wit h t h e e x c e pti o n of t he 

c a pt ur e of a s mall p orti o n of t he pl u m e o n t he e ast er n e d g e of t h e Site. T h e R a n n e y well is 

f u n cti o ni n g, b ei n g p u m p e d at t h e mi ni m u m p u m pi n g le vel r e q uir e d b y E P A, a n d c o nt ai ni n g t h e 

m aj orit y of t h e gr o u n d w at er pl u m e. T h e C M S D l a n dfill is i n g o o d c o n diti o n a n d is pr o p erl y 

m ai nt a m e d. T h e will o w tr e es are i n g o o d c o n diti o n a n d are c a pt uri n g t h e C M S D s e e p water. T he 

F S P S A s pr a yfi el d is f u n cti o ni n g as i nt e n d e d. T h e r e vi e w of d o c u m e nts, A p pli c a bl e or R el e v a nt 

a n d A p pr o pri at e R e q uir e m e nt ( A R A Rs), ris k ass u m pti o ns, a n d t h e r es ults of t h e Sit e i ns p e cti o n 

i n di c at e t h at t h e r e m e d y is f u n cti o ni n g as i nt e n d e d b y t h e R O D, as m o difi e d b y t he t w o E S Ds. 

R e m e di al A cti o n P erf or m a n c e 

T h e r e m e d y c o nti n u es t o o p er at e a n d f u ncti o n as d esi g n e d. Cl e a n u p l e v els ar e o n a p at h t o be 

a c hi e v e d i n t he ti m e fr a m e s p e cifi e d i n d e cisi o n d o c u m e nts, a n d d e cr e asi n g c al c ul ati o ns of 

c o nt a mi n a nt m ass-i n- pl a c e are d o c u m e nt e d i n t h e a n n ual gr o u n d w at er m o nit ori n g re p orts. 

C o nt ai n m e nt is eff e cti v e f or m ost of t h e c o nt a mi n at e d gr o u n d w at er pl u m e, b ut a s mall p orti o n of 

t h e pl u m e i n t h e m ost e ast er n p orti o n of t he Sit e w as n ot f ull y c o nt ai n e d b y t h e R a n n e y well 

d uri n g t h e 2 0 1 4, 2 0 1 5, 2 0 1 6 gr o u n d w at er m o nit ori n g e v e nts. T his is b eli e v e d t o be d ue t o b ot h 

t h e dis c o nti n u ati o n of p u m p a g e b y t he i nt er c e pt or well ( per t h e 2 0 1 2 E S D) a n d a r e d u cti o n i n 

p u m p a g e b y t h e R a n n e y well. 

S yst e m O p er ati o ns/ O & M 

T he o p er ati n g pr o c e d ur es c o ul d be i m pr o v e d t o b ett er m a mt ai n t h e eff e cti v e n ess of t he re me d y. 

O p er ati n g t h e R a n n e y well at t h e mi ni m u m p u m pi n g r at e d o es n ot a p p e ar t o f ull y c o nt ai n t he 

pl u m e. As s u g g est e d i n t h e 2 0 1 4 Gr o u n d w at er M o nit ori n g r e p ort, t h e p u m pi n g rate s h o ul d be 

i n cr e as e d, a n d t he diff er e n c es b et w e e n t h e gr o u n d w at er el e v ati o ns a n d c o nt o urs s h o ul d be 

c o m p ar e d a n d m o nit or e d. 

2 0 
I m pl e m e nt ati o n of I nstit uti o n al C o ntr ols a n d Ot h er M e as ur es 

I Cs i n t h e f or m of a n E n vir o n m e nt al C o v e n a nt ar e i n pl a c e. T h e y ar e pr o vi n g t o be eff e cti v e i n 

pr e v e nti n g e x p os ur e t o Sit e c o nt a mi n a nts a n d pr o hi bit p ot a bl e us e of t h e gr o u n d w at er b e n e at h 

t he Site. F e n ci n g a n d w ar ni n g si g ns ar e i n pl a c e ar o u n d t he sit e a n d ar e i n g e n er all y g o o d 

c o n diti o n. 

Q U E S TI O N B: Ar e t h e e x p os ur e ass u m pti o ns, t o xi cit y d at a, cl e a n u p l e v els, a n d r e m e di al a cti o n 

o bj e cti v es ( R A Os) us e d at t h e ti m e of t h e r e m e d y s el e cti o n still v ali d ? 

Q u esti o n B S u m m a r y: 

Yes, t h e e x p os ur e ass u m pti o ns, t o xi cit y d at a, cl e a n u p l e v els, a n d R A Os us e d at t he ti m e of t h e r e m e d y 

s el e cti o n are still vali d. T h er e h a v e b e e n n o c h a n g es i n t he p h ysi c al c o n diti o ns of t h e Sit e t h at w o ul d 

aff e ct t h e pr ot e cti v e n ess of t he r e m e d y. 

As t he r e m e di al w or k h as b e e n c o m pl et e d, A R A Rs f or r e m e d y c o nstr u cti o n cit e d i n t he R O D a n d/ or 

a m e n d e d b y t h e E S D h a v e b e e n met. T h e A R A Rs t h at r e m ai n t o be s atisfi e d i n cl u d e: 

1) T h e S af e Dri n ki n g W at er A ct ( S O W A) ( 4 0 C F R 1 4 1)--t h e S O W A m a xi m u m c o nt a mi n a nt l e v els 

are r el e v a nt a n d a p pr o pri at e t o gr o u n d w at er r e m e di al a cti o ns w h er e t h e gr o u n d w at er is a c urr e nt 

a n d/ or p ot e nti al s o ur c es of dri n k m g water. 

2) F or t he Cl e a n W at er A ct, O hi o A d mi nistr ati v e C o d e 3 7 4 5- 3 3, O hi o N P D E S I n di vi d u al P er mits--

N P D E S r e q uir e m e nts ar e a p pli c a bl e t o dir e ct dis c h ar g es of p oll ut a nts t o s urf a c e w at ers. 

Q U E S TI O N C: H as a n y ot h er i nf or m ati o n c o m e t o li g ht t h at c o ul d call i nt o q u esti o n t h e pr ot e cti v e n ess 

of t he r e m e d y ? 

N o. T h er e is n o ot h er k n o w n i nf or m ati o n t h at c o ul d call i nt o q u esti o n t h e pr ot e cti v e n ess of t h e re me d y. 

2 1 
VI. I S S U E S/ R E C O M M E N D A TI O N S 

Iss u es /R e c o m m e n d ati o ns 

}) U(sf wit b o ~tlss ues/ Rec o m me n ~,tj oiis I d e ntifi e d i n tlie F.i ve a- Ye a·r Re vie w: ·: , .. 

N o n e 

'Iss u es ~ n d Rec o m meri d ati o n s'iid e ntifit d .i n t h e Fi ~ ~ Y e a r R ~ vie w: ·. t . . . .• . ',, _ :,..', . ' . . _ - ~ ,:, . .· .. . ' " . , · ......... : 

O U(s): Iss u e C at e g o r y: R e m e d y P e rf o r m a n c e 

0 1/ Sit e wi d e Iss u e: T h e R a n n e y Well , o p er ati n g al o n e at a l o w er p u m p a g e r at e a n d 

wit h o ut t h e t w o i nt er c e pt or w ells , d oes n ot f ull y c o nt ai n a s mall p orti o n of 

t h e c o nt a mi n a nt pl u m e i n t h e e ast er n p orti o n of t h e Site. T h e facilit y is 

r e q uir e d t o est a blis h a n d mai ntai n a c a pt ur e z o n e of c o nt a mi n at e d 

gr o u n d w at er i n t h e all u vial a q uif er as est a blis h e d b y t h e 1 9 9 5 C o ns e nt 

D e cr e e a n d t h e R O D . 

R e c o m m e n d ati o n: I n cr e as e t h e p u m pi n g r at e of t h e R a n n e y well t o f ull y 

c o nt ai n t h e pl u m e . 

Aff e ct C u r r e nt Aff e ct F ut u r e P a rt y O v e rsi g ht Mil est o n e D at e 

P r ot e cti v e n ess P r ot e cti v e n ess R es p o nsi bl e P a rt y 

N o Yes Ot her- Pr o p ert y E P A 6/ 4/ 2 0 1 7 

O w n er 

O U(s): Iss u e C at e g o r y: R e m e d y P e rf o r m a n c e 

0 1/ Sit e wi d e Iss u e: T h e R a n n e y Well , o p er ati n g al o ne at a l o w er p u m p a g e r at e a n d 

wit h o ut t he t w o i nt er c e pt or w ells , d oes n ot f ull y c o nt ai n a s mall p orti o n of 

t h e c o nt a mi n a nt pl u m e i n t h e e ast er n p orti o n of t h e Site. T h e f a cilit y is 

r e q uir e d t o est a blis h a n d m ai nt ai n a c a pt ur e z o n e of c o nt a mi n at e d 

gr o u n d w at er i n t h e all u vial a q uif er as est a blis h e d b y t h e 1 9 9 5 C o ns e nt 

D e cr e e a n d t h e R O D. 

R e c o m m e n d ati o n: Pr o vi d e a s u m m ar y r e p ort of t h e eff e ct of t h e p u m pi n g 

i n cr e as e i n u p c o mi n g a n n u al gr o u n d w at er r e p orts. T h e r e p orts s h o ul d 

i n cl u d e a c ertifi c ati o n t h at ca pt ure is b ei n g m ai nt ai n e d i n all p orti o ns of t h e 

pl u m e or t h at c orr e cti v e m e as ur es are i n pl a c e t o e ns ur e t h at c a pt ur e will b e 

m ai nt ai n e d i n t h e f ut ure. A d diti o n all y , s a m pl e M W- 2 0 as p art of t h e 

a n n ual gr o u n d w at er m o nit ori n g pr o gr a m f or Sit e C O Cs. 

Aff e ct C u r r e nt Aff e ct F ut u r e P a rt y O v e rsi g ht Mil est o n e D at e 

P r ot e cti v e n ess P r ot e cti v e n ess R es p o nsi bl e P a rt y 

N o Yes Ot her- Pr o p ert y E P A 5/ 4/ 2 0 2 0 

O w n er 

2 2 
O U(s): Iss u e C at e g o r y: M o nit o ri n g 

0 1/ Sit e wi d e Iss ue: T he 2 0 1 6 A n n ual R e m e di al A cti o n Gr o u n d w at er M o nit ori n g R e p ort 

s h o ws t h at M W- 2, M W- 5, a n d M W- 3 0 were n ot t est e d f or P C E. 

C o m pli a n c e wells M W- 2, M W- 5, M W- 1 8 a n d M W- 3 1 al o n g wit h M W- 3 0, 

w h er e P C E w as d et e ct e d i n t h e RI, s h o ul d be t est e d f or P C E u n d er t h e R A 

Gr o u n d w at er M o nit ori n g Pla n. 

R e c o m m e n d ati o n: All c o m pli a n c e wells a n d M W- 3 0 m ust be teste d f or 

P C E d uri n g a n n ual gr o u n d w at er s a m pli n g t o c o m pl y wit h t h e R A 

Gr o u n d w at er M o nit ori n g Pla n. 

Aff e ct C u r r e nt Aff e ct F ut u r e P a rt y O v e rsi g ht Mil est o n e D at e 

P r ot e cti v e n ess P r ot e cti v e n ess R es p o nsi bl e P a rt y 

N o Yes Ot h er- Pr o p ert y E P A 9/ 3 0/ 2 0 1 7 

O w n er 

O T H E R FI N DI N G S 

I n a d diti o n, t h e f oll o wi n g are r e c o m m e n d ati o ns t h at w er e i d e ntifi e d d uri n g t h e F Y R t hat ma y aff e ct 

p erf or m a n c e of t he r e m e d y a n d c o m pli a n c e wit h d e cisi o n d o c u m e nts b ut d o n ot aff e ct c urr e nt n or f ut ure 

pr ot e cti v e n ess: 

• E P A is r e c o m m e n di n g t h at f ut ure gr o u n d w at er m o nit ori n g r e p orts i n cl u d e d at a c oll e ct e d relate d 

t o t he p erf or m a n c e of t h e R a n n e y well. S a m pli n g data c oll e ct e d t o d e m o nstr at e c o m pli a n c e wit h 

O hi o N P D E S p er mit li mits f or dis c h ar g e of t h e w at er p u m p e d fr o m t h e R a n n e y well i nt o t h e 

O h w Ri v er, s a m pli n g d at es, p u m pi n g r at es, fl o w data, a n d t he a n al yti c al d at a ass o ci at e d wit h a n y 

d et er mi n ati o ns m a d e r e g ar di n g t h e mass r e m o v al esti m ati o ns of fl u ori d e a n d c y a ni d e s h o ul d be 

i n cl u d e d i n f ut ure gr o u n d w at er m o nit ori n g re p orts. 

• Ha n ni bal D e v el o p m e nt P art n ers s h o ul d c o n d u ct a titl e s e ar c h t o e ns ur e I Cs are i n pl a c e f or eac h 

parcel. E P A s h o ul d c o nfir m I Cs r e m ai n i n pl a c e a n d are eff e cti v e as p art of t h e n e xt F Y R. 

VII. P R O T E C TI V E N E S S S T A T E M E N T 

, . . Ol. Jl a n d Sit e wi d e P r ot e c _ti v e n e ~s\t ~t e ~ e nt . · 

Pr ot e cll v e n ess D et er mz n at, o n · 

S h ort-t er m Pr ot e cti v e 

Pr ot e cti v e n ess St at e m e nt 

T he re me d y at t h e Or m et C or p. S u p erf u n d Site c urr e ntl y pr ot e cts h u m a n h e alt h a n d t he 

e n vir o n m e nt. E x p os ur e p at h w a ys t hat c o ul d r es ult i n u n a c c e pt a bl e ris ks are b ei n g c o ntr oll e d 

t hr o u g h c a p pi n g, e x c a v ati o n, s oil fl us hi n g, pl u m e c o nt a mr n e nt, i nst all ati o n of fe nci n g, a n d 

i m pl e m e nt ati o n of eff e cti v e I Cs. H o w e v er, i n or d er f or t he r e m e d y t o be eff e cti v e i n t he l o n g2 3 
ter m, t he f oll o wi n g a cti o ns nee d t o be ta ke n t o e ns ur e pr ot e cti v e n ess: i n cr e as e t h e p u m pi n g 

rate of t he R a n n e y well t o f ull y c o nt ai n t he pl u m e, a n d t est all c o m pli a n c e w ells a n d M W- 3 0 

f or P C E d uri n g a n n u al gr o u n d w at er sa m pli n g. 

VIII. N E X T R E VI E W 

T he n e xt F Y R r e p ort f or t h e Or m et C or p. S u p erf u n d Sit e is r e q uir e d n o l ess t h a n fi ve y e ars fr o m E P A's 

si g n at ur e d at e of t his r e vi e w. 

2 4 
A P P E N DI X A - R ef e r e n c e List 

2 0 1 2 a, U. S. E P A, E x pl a n ati o n of Si g nifi c a nt Diff er e n c es Or m et C or p or ati o n S u p erf u n d Sit e ( M ar c h 3, 

2 0 1 2) S E M S N o. 4 3 0 7 4 0 

2 0 1 2 b, U. S. E P A, Sit e wi d e R e a d y f or A nti ci p at e d Us e ( S W R A U)- Or m et C or p. ( S e pt e m b er 6, 2 0 1 2) 

S E M S N o. 4 4 1 9 9 2 

2 0 1 3 a, H MI E n vir o n m e nt al C o ns ulti n g S er vi c es, 2 0 1 2 A n n u al R e m e di al A cti o n Gr o u n d w at er 

M o nit ori n g R e p ort Or m et C or p or ati o n S u p erf u n d Sit e H a n ni b al, O hi o ( A pril, 2 0 1 3) S E M S N o. 4 6 9 3 3 4 

2 0 1 4 a, L ei d os E n gi n e eri n g L L C, 2 0 1 3 A n n u al R e m e di al A cti o n Gr o u n d w at er M o nit ori n g R e p ort Or m et 

C or p or ati o n S u p erf u n d Sit e H a n ni b al, O hi o ( M a y, 2 0 1 4) S E M S N o. 4 7 5 1 9 9 

2 0 1 4 b, O p er ati o n a n d M ai nt e n a n c e I ns p e cti o n R e p ort L ett er fr o m O hi o E P A Distri ct R e pr es e nt ati v e 

Ri c h ar d St e w art, t o Mr. Mi k e Griffi n, V. P. O p er ati o ns Or m et C or p or ati o n r e g ar di n g P ot e nti al 

C o m pli a n c e Iss u es r el at e d t o 3 7 4 5- 5 2- 4 1 Bi e n ni al r e p ort s u b missi o n; J u n e 5, 2 0 1 4 

2 0 1 4 c, Ass et P ur c h as e A gr e e m e nt b et w e e n Ni a g ar a W orl d wi d e a n d Or m et C or p or ati o n; J u n e 2 6, 2 0 1 4 

2 0 1 4 d, L ett er fr o m S u p erf u n d Di visi o n, Ri c h ar d K arl, Dir e ct or, t o Mr. Eri c J. S pirt as Pr esi d e nt H a n ni b al 

D e v el o p m e nt P art n ers A c c e pt e d c h a n g e i n fi n a n ci al ass ur a n c e pr o vi d e d u n d er t h e C o ns e nt D e cr e e a n d 

C o ns e nt D e cr e e A m e n d m e nt; D e c 1 8, 2 0 1 4 

2 0 1 4 e, L ett er fr o m Mr. Eri c J S pirt as t o S u p erf u n d Dir e ct or, Ri c h ar d K arl, R e q u esti n g c h a n g e t o t h e 

f or m of fi n a n ci al Ass ur a n c e; D e c 1 6, 2 0 1 4 

2 0 1 5 a, O p er ati o n a n d M ai nt e n a n c e I ns p e cti o n R e p ort L ett er fr o m O hi o E P A Pr oj e ct M a n a g er, Mi c h a el 

D. S h err o n, t o E P A R P M T o m B ar o u nis; M a y 1 9, 2 0 1 5 

2 0 1 5 b, L ett er fr o m Mr. Eri c J. S pirt as t o S u p erf u n d Dir e ct or Ri c h ar d K arl, R e q u esti n g a c o mf ort l ett er 

r e g ar di n g t h e f or m er Or m et Pr o p ert y A pril 6, 2 0 1 5 

2 0 1 5 c, G e o R es o ur c e Gr o u p, 2 0 1 4 A n n u al R e m e di al A cti o n Gr o u n d w at er M o nit ori n g F or m er Or m et 

C or p or ati o n S u p erf u n d Sit e H a n ni b al, O hi o ( S e pt e m b er, 2 0 1 5) S E M S N o. 4 9 6 3 0 5 

2 0 1 5, E n vir o n m e nt al I n di c at or W or ks h e ets: L o n g-t er m H u m a n H e alt h Pr ot e cti o n W or ks h e et & 

Mi gr ati o n of C o nt a mi n at e d Gr o u n d w at er U n d er C o ntr ol W or ks h e et ( O ct o b er, 2 0 1 5) S E M S N o. 4 9 8 6 4 0 

2 0 1 6 a, G e o R es o ur c e Gr o u p, 2 0 1 5 A n n u al R e m e di al A cti o n Gr o u n d w at er M o nit ori n g F o m 1er Or m et 

C or p or ati o n S u p erf u n d Sit e H a n ni b al, O hi o ( O ct o b er, 2 0 1 6) S E M S N o. 9 3 0 1 9 5 

2 0 1 6 b, Ge o R es o ur c e Gr o u p, 2 0 1 6 A n n u al R e m e di al A cti o n Gr o u n d w at er M o nit ori n g E x e c uti v e 

S u m m ar y F or m er Or m et C or p or ati o n S u p erf u n d Sit e H a n ni b al, O hi o ( O ct o b er, 2 0 1 6) S E M S N o. 

9 3 0 2 4 3 

A- 1 
A P P E N DI X B - C h r o n ol o g y 

E v e nt D at e 

Pl a nt st art e d o p er ati o ns 1 9 5 8 

Pl a c e m e nt of s p e nt p otli n er i n f or m er s p e nt p otli n er st or a g e ar e a ( F S P S A) 1 9 5 8 t o 1 9 6 8 

Use ofr et e nti o n dis p os al p o n ds (f or m er dis p os al p o n ds-- F D Ps) 1 9 5 8t o 1 9 8 1 

W ast es t o c o nstr u cti o n m at eri als s cr a p d u m p ( C M S D) 1 9 6 6 t o mi d- 1 9 7 9 

Re m o val of m u c h of t h e s p e nt p otli n er 1 9 6 8 t o 1 9 8 1 

V erifi c ati o n of gr o u n d w at er c o nt a mi n ati o n i n t h e R a n n e y w ell at t h e r e d u cti o n pl a nt a n d a b o ut 1 9 7 2 

s u bs e q u e nt i nst all ati o n of i nt er c e pt or w ells 

Pr o p os e d t o N ati o n al Pri oriti es List ( N P L) 9/ 1 8/ 1 9 8 5 

A d mi nistr ati v e Or d er b y C o ns e nt b et w e e n Or m et C or p or ati o n, O hi o E n vir o n m e nt al 5/ 1 9/ 1 9 8 7 

Pr ot e cti o n A g e n c y ( O hi o E P A), a n d U. S. E n vir o n m e nt al Pr ot e cti o n A g e n c y ( E P A) f or 

Or m et t o perf o 1 m t he r e m e di al i n v esti g ati o n ( RI) a n d f e asi bilit y st u d y ( F S), r e p ort e d 

eff e cti v e d at e 

Fi n ali z e o n N P L 7/ 2 1/ 1 9 8 7 

RI R e p ort 1 2/ 2 9/ 1 9 9 2 

F S R e p ort i n cl u di n g A d d e n d u m r e q uir e d b y E P A D e c e m b er 1 9 9 3 

Pr o p os e d Pl a n U n d at e d, r e p ort e dl y 

r el e as e d 4/ I I/ 1 9 9 4 

P u bli c m e eti n g f or t h e Pr o p os e d Pl a n, F S R e p ort, RI R e p ort, a n d ot h er d o c u m e nts 4/ 2 0/ 1 9 9 4 

E n d of c o m m e nt p eri o d f or t h e Pr o p os e d Pl a n 6/ 1 0/ 1 9 9 4 

R e c or d of D e cisi o n 9/ 1 2/ 1 9 9 4 

C o ns e nt D e cr e e f or r e m e di al d esi g n a n d r e m e di al a cti o n b et w e e n Or m et Pri m ar y Al u mi n u m L o d g e d 9/ 2 8/ 1 9 9 5 

C or p or ati o n a n d E P A E nt er e d I 2/ I 8/ 1 9 9 5 

First E x pl a n ati o n of Si g nifi c a nt Diff er e n c es ( E S D) 4/ 1/ 1 9 9 7 

A p pr o v al of d esi g n 4/ 1 5/ 1 9 9 7 

Pr eli mi n ar y Cl os e O ut R e p ort si g nif yi n g c o nstr u cti o n c o m pl eti o n 8/ 4/ 1 9 9 8 

First Fi v e- Y e ar R e vi e w R e p ort 5/ 6/ 2 0 0 2 

Dis c o v er e d p art of C M S D l a n dfill c o v er h a d faile d a n d sli d d o w n t h e si d e 6/ 1 3/ 2 0 0 6 

S e c o n d Fi v e- Y e ar R e vi e w R e p ort 5/ 4/ 2 0 0 7 

A m e n d m e nt t o t he C o ns e nt D e cr e e E nt er e d 3/ 1 1/ 2 0 0 9 

E n vir o n m e nt al C o v e n a nt r e c or d e d 4/ 1 6/ 2 0 1 0 

S e c o n d E S D 3/ 2 6/ 2 0 1 2 

T hir d Fi v e- Y e ar R e vi e w R e p ort 5/ 0 4/ 2 0 1 2 

Sit e wi d e R e a d y f or A nti ci p at e d Use 9/ 6/ 2 0 1 2 

B a n kr u pt c y of Or m et C or p. 2/ 2 5/ 2 0 1 3 

Ass et P ur c h as e A gr e e m e nt b et w e e n Ni a g ar a W orl d wi d e L L C a n d Or m et C or p or ati o n 6/ 2 6/ 2 0 1 4 

L ett er of Cr e dit Dr a w d o w n f or H a n ni b al D e v el o p m e nt P art n ers L L C 1 2/ 1 8/ 2 0 1 4 

Fe deral S u p erf u n d I nt er est R e as o n a bl e St e ps St at us L ett er 5/ 2 9/ 2 0 1 5 

F o urt h Fi v e- Y e ar R e vi e w R e p ort 5/ 0 4/ 2 0 1 7 

B- 1 
A P P E N DI X C - Sit e M a ps 

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D A T E: 1 0 2 0 1 6 

D A T E: 1 0 2 0 1 6 

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w. N NI B AI. HI O 

Fi g ur e I. B as e Sit e m a p of Or m et C or p. S u p erf u n d Site ( m o difi e d fr o m 2 0 1 6 R e m e di al A cti o n Gr o u n d w at er 

M o nit ori n g R e p ort) s h o wi n g F or m er S p e nt P otli n er St or a g e Ar e a ( F S P S A), C o nstr u cti o n M at eri als S cr a p D u m p 

( C M S D), C R D A ( C ar b o n R u n off a n d D e p ositi o n A r e a), F or m er Dis p os al P o n d s ( F O P) _N o . 1- 5, f or m er Or m et 

Pla nt Pr o p er , a n d all m o nit ori n g w ell l o c ati o ns. 

C- 1 
► • • • • 

\ 

\ 

............. • C o mi 1 6 n g I n e n vfr o o m e nt a l a n d g & Ol o g/ c a l s cl e n o e s ] S C A L E I N F E E T 

0 8 0 0 

Fi g ur e 2. Sit e M a p of O n n et C or p. S u p erf u n d Sit e a n d f or m er O n n et f a cilit y ( m o difi e d fr o m 2 0 1 6 R e m e di al 

A cti o n Gr o u n d w at er M o nit ori n g R e p ort) s h o wi n g c o m pli a n c e wells (re d); gr o u n d w at er m o nit ori n g wells: 

s a m pl e d ( bl u e), b a c k gr o u n d ( gr e e n), a d diti o n al wells of i nt er est e d ( bl a c k). 

C- 2 
I 

............. S C A L E I N F E E T 

• C o ns u lil g I n e n vt c n m e nl a/ e n d ge ol o glc' 1I a dl n c a s o 4 0 0 e o o 

FI L E N O : 

P L O T SI Z E - 1 - 40 0' 

D R A F T E D B Y: C O S D A T E: 1 0 2 0 1 6 

C H C K E D B Y: B F D A T E: 1 0 2 0 1 6 

A P P R O V E D B Y: B F D A T E: 1 0 2 0 1 6 

R E VI S O N N O : 

G R O U N D W A T E R E L E V A TI O N C O N T O U R S 

A T A C O L L E C T E D S E P T E M B E R 1 9, 2 0 1 6 

O R M E R O R M E T S U P E R F U N O I T E 

A N N B A L O HI O 

flC U R E 

2 

Fi g ure 3. Gr o u n d w at er el e v ati o n c o nt o urs fr o m 2 0 1 6 R e m e di al A cti o n Gr o u n d w at er M o nit ori n g R e p ort s h o wi n g 

g e n er al gr o u n d w at er fl o w fr o m t h e n ort h e ast t o t h e s o ut h w est t o w ar ds t h e R a n n e y We ll. S m all p orti o n of t he 

gr o u n d w at er fl o w o n t he e ast er n m ost p art of t he Sit e is n ot c o nt ai n e d b y t h e p u m pi n g of t he R a n n e y Well. 

C- 3 
• z 

!~ 

S C A L E N F E E T 

0 4 0 0 

T O T A L C Y A NI D E I SO P L E T H M A P 

~:-:- c'::- ~ : c----- +- =- = =- =::" T.:-:: c c-:----- 1S A M P L E S C O L L E T E D S E P T E M B E R 19- 2 1, 2 0 1 6 

F O R M E R O R M E T S U P E R F U N D S I T E 

~ N B A L O H I O 

1 1 0 0 

C U R E 

6 

Fi g ure 4. W A D c y a ni d e is o pl et h ma p fr o m t h e 2 0 1 6 R e m e di al A cti o n Gr o u n d w at er M o nit ori n g R e p ort. W A D 

c y a ni d e c o n c e ntr ati o ns ar e hi g h est d o w n gr a di e nt fr o m t h e F S P S A t o t h e s o ut h w est. 

C- 4 
S C A L E I N ff E T 

o 4 0 0 a o o 

F L U O RI D E I S O LI T H M A P 

~ =-' =- ~ =----- +- =- =::--:-: ~ c:-- =---t S A M P L E S C O L L E C T E D S E P T E M B E R 1 9- 2 1, 2 0 1 6 

F O M[ R O R M [ T S U P E F U N O I T E 

H A N NI B A L HI O 

FI G U R E 

5 

Fi g ur e 5. Fl u ori d e is o plet h m a p fr o m t h e 2 0 1 6 R e m e di al A cti o n Gr o u n d w at er M o nit ori n g R e p ort. Fl u ori d e 

c o n c e ntr ati o ns ar e hi g h est d o w n gr a di e nt fr o m t he F S P S A t o t he s o ut h w est. 

C- 5 
" 

S U R V E Y P L A T 

F O R 

O R M E T P RI M A R Y C O R P O R A TI O N 

. _ .......... c..... 0., 0.., 4-· ..., _ _., CI N. ..... -., .... a.., ... , • .............. , _., .. ,.,....., 

--u r u r o n c m Pl •-• - 1 1 c.. r-•• 

1 1 1 u• o•.....,..--....... _ 

"......,,..,, _ _ _ = = = = ... e- #I U A.. _ 

............ .-......- =-..........--- . _"--, _, _.... _ ... --- ·-

_,, ....... _ _ __ _ _ _ _ _ _........... .. ..... _......., _,..,." •.·-- ...... c...-i·. _ _,,·. _ _. .. --.... 1: =::· . .. .....,..,,. .... ........... , ..... _ t :::-:::..:.:.:.' =! ..:.: =: =": = 

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_ _ Or m et S u p erf u n d Sit e B o u n d ar y 

~ UIII Ctl UI W'l " Nl- W: 

--- ~ e u, o, e o, u m (J...,,.,., 

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1 H Ultft c:: a,tff " r nt J CI Mll'\ A 1I WII A. O 

U JIIIIII Cf l O I HI .. , 0 1 w, I N M U O Olf N G 

"' " _. ...... ,. ..... .fl CI W. ,- OI UII\ C Yt, ntl,. _. _ 

Fi g ur e 6. Or m et C or p. I Cs m a p s h o wi n g S u p erf u n d Site a n d r e d u cti o n pl a nt b o u n d ar y. 

C- 6 
A P P E N DI X D - N e ws p a p er A d v ertis e m e nts 

,, E P A E P A B gi n s R e vi e w 

of Or m et C or p . S u p erf u n d Sit e 

M o nr o e C o u nt y, O h i o 

U. . E n vir o n me ntal Pr otecti o n A ge nc y is c o n d ucti n g a fi ve- year re vie w of t he Or met C or p . u perf u n d 

site t ote R o ute 7 i n M o m C o u nt y. O hi o, a p pr o xi matel y 3 mi l n ort h of t h cit y of Ha nr ul >al. T he 

u p erf u n d l a w r e q uir es r e g ul ar c h e c k u of 't t h t ha ve bee n cl e d u p - wit h t e ma na ge d o n -

it e - t o ma ke s ure t he clea n u p c o nti n u t o pr otect pe o ple a n d t he e n vir o n m ot. T hi is t he f o urt h ti eyear re vie w of this ·te. 

T he clea n u p of c h e mi al e o nt:a mi oati o n t t h ·, e c o nsiste d of i nterce pti n g a n d treati n g c o nta mi nate d 

gr o u n d water , c o nti n ue d p u m pi n of pr o d ucti o n w ell, fl us hi ng ii i n t he f o n ncr s pe nt p otli ner ra ge 

Ill' , nstr ucti n g a 1 d. 6 1 1 a n d g cel l, re m o vi n g c o nta mi nate d ii a n d di me nt ( m u d) a n d 

placi ng t he m i n t he la n dfill a n d t ora ge cell, l o n g-te n n m o nit ori n g. a n d li miti ng t h use of a n d ace 

t o t h it . 

vai la bl e at t h e M nr oe C o u nt y P u blic i brar y, 9 6 H o me v e ., W o o dsfiel d. hi o ; 

. T he r e vi e w s h o ul d b e c o m plete d b y Ma y 4, 2 0 1 7. 

T he ti e. y e ar re vi w i a n o p p ort u nit y f or y o u t o tell U. . E P A a b o ut ite c o n diti o n a n d a n y c o ncer ns 

y o u ha ve. Pl se s u b mit y o ur c o m me nts. C o nt a ct 

cir al m e q u 

C o m m u nit y I n ol ve me nt C o or di nat or 

3 1 2- 3 5 3- 2 0 3 S 

p al o m e q u e. a dri e p a. g o v 

K a t herine o m as 

Re me dial Pr oject Ma na ger 

3 1 2 -3 S 3 S 8 7 8 

t h o m ns.Jcat hei n e p a. g o v 

Y o u ma y als o call U. S. P A t oll-free at 8 0 0- 6 2 1- 8 4 3 1, 9: 3 0 a. m. t o 5: 3 0 p. m. , wee k da . 

Fi g ur e 1. A d v ertis e m e nt pl a c e d i n t h e M o nr o e C o u nt y B e a c o n , W o o dsfi el d , O hi o T h urs d a y N o v e m b er 2 4 , 2 0 1 6 

a n d i n t h e M o nr o e C o u nt y S e nti n el , W o o dsfi el d, O hi o M o n d a y N o v e m b er 2 8 , 2 0 1 6 

D- 1 
A P P E N DI X E - Fi v e- Y e ar R e vi e w Sit e I ns p e cti o n C h e c klist 

Fi v e- Y e ar R e vi e w Sit e I n s p e cti o n C h e c kli st ( T e m pl at e) 

( W or ki n g d o c u m e nt f or site i ns pecti o n. I nf o n nati o n m a y be c o m plete d b y h a n d a n d attac he d t o t he 

Fi ve- Year Re vie w re p ort as s u p p orti n g d oc u me ntati o n of sit e stat us. • ~/ A " refers t o "n ot 

a p plica ble.") · 

I. SI T E I N F O R M A TI O N 

Site n a me: O Y J. u J ( o., p . D ate of i ns pecti o n: N', ~ If"' z n 1 1; 

L oc ati o n a n d Re gi o n: H, n,,, J, / tJ H l' 5 E P A I D: 

A ge nc y, office, or c o m p a n y le a dl n 2 t he r a ve- ye ar We at her/te m per at ure: 

re vie w: Vff'f A 

Re me d y I ncl u des: ( C h e c k all t h at a p pl y) 

ff. L a n dfill c o ver/c o ntai n me nt ) §. M o nit ore d nat ural atte n uati o n f P P 

' pl Access c o ntr ols ~ Gr o u n d w at er c o nt ai n m e nt 

~ I nstit uti o nal c o ntr ols a Ve rti c al b arri er walls 

'!j{ Gr o u n d water p u m p a n d treat me nt 

□ S urracc water c ollecti o n a n d treat me nt , Ot her C M. S Q l p ~. & t [ u.l D. A. ,, d ~r- A o a J O C.l U 1. 1tt. :t.t ~!I • Lil:( 

Att ac h me nts: □ I ns pecti o n tea m r ost er att a c h e d a Sit e m a p att a c h e d 

II. I N T E R VI E W S ( C hec k all t hat a p pl y) 

1. O & M site m a n a ger '\ M\ I A . . , . J . : J . & I \ , rt-.J f.,. ·- ~." ti 1 3' l ~..,. 2 4lf 6 N a m e I itle 0 Date 

I nt er vi e w e d ~ at sit e □ at office □ b y p h o ne P h o ne o o . 

Pr o ble ms , s ug g esti o ns; □ Re p ort att K he d 

- 1 
O S W E R N o. 9 3 5 5. 7-() J B- P 

2. O & Mst aff o ... u .. ~ P ~t\i ~ Rl\a ~ M _,.. _,.., _,, I N, ~ If, 2 o t p 

Na me T itle u Date 

I nter vie we d' # at site o at office o b y p h o ne P h o ne n o . 

Pr o ble ms , s u g gesti o n $; o Re p ort attac he d 

3. L oc al re g ul at or y a u dl orities a n d res p o nse a ge ocl (i.e., State a n d Tri bal offices . e mer ge nc y res p o nse 

, office , p olice de part me nt, office of p u blic healt h or e n vir o n me ntal healt h, z o ni n g office, rec or der of 

dee ds , or ot her cit y a n d c o u nt y offices, etc.) Fill i n all t hat a p pl y. 

A ge nc y ~ tf #\ C o ntact 9" 1\ 0 ~ C o o k:. s ~t, C o 6t Ai ~,, Na me Title · Date P h o ne n o. 

Pr o ble ms; s u g gesti o ns; o Re p ort attac he d 

A ge nc y 

~ l ~ ~ ~ ~l ~f, C o ntact 

Na me . Title Date P h o ne n o. 

Pr o ble ms; s u g gesti o ns; a Re p ort attac he d 

A ge nc y 

~:i ~ ~ C o ntact 

Na me Title Date P h o ne n o. 

Pr o ble ms; s u g gesti o ns; o Re p ort attac be d 

A ge nc y 

C o ntact Na me Title Date P h o ne n o. 

Pr o ble ms; s u g gesti o ns; o Re p ort attac he d 

4. Ot h e r i nt e r vi e w ( o pti o nal) a Re p ort attac he d. 

. 

E- 2 
. 

m. O N- SI T E D O C U M E N T S & R E C O R D S VJ U U FI E D ( C hec k all t hat p pl y) 

1. O & M D oc u me nts 

a o & M m a n u al c Rea dil y a vaila ble □ U p t o date C N/ A 

a As- b u .ill dr a wi n ~ o Rea dil y a vaila b le a U p t o date N / A 

a Mai nte na nce l o ~ o Rea dil y a vaila ble U p t o date O N/ A 

Re mar ks 

' 

2. Sit ~ S p e cifi c Hea lt h a n d S af et y Pl a n o Rea dil y a vaila ble □ U p t o date N / A 

o C o nti n ge nc y pla n/e mer ge nc y res p o nse pla n a Rea dil y a vaila ble o U p t o date O N/ A 

Re mar ks 

3. O & M a n d O S H A Tr ai ni n g Rec or ds a Rea dil y a vaila ble □ U p t o date O N / A 

R e m ar k s 

4. Per m its a n d Ser vice A gree me nts 

o Air disc har ge p er mit a R e a dil y a vaila ble o U p t o date O N/ A . Effl ue nt disc har ge a Rea dil y a vaila ble □ U p t o date N / A 

o W ~ dis p o $aJ, O T W o Rea dil y a vaila ble c U p t o date O N / A 

o Ol h er ~its a Rea dil y a vaila ble a U p t o date O N / A 

Re mar ks f ~ M n M'i ~t 1.. A ~ o. € P Pt ~fl) ~ ~ " O J EI U Q O. S ~ A A Q 

s. Gas Ge nerati o n R e c o ~ a Rea dil y a vaila ble o u p t o date O N / A 

Re mar ks 

6. Settle me n t M o n u me nt Rec or ds o Rea dil y a vaila ble □ U p t o date O N / A 

Re mar ks D, ~\ .. ~\t. a.\: M > A ~r,e i Y\ ~ c or' k . 

7. Gr o u n d w ater M o nit ori n g Rec or ds O Rea dil y a vaila b le □ U p t o date O N / A 

Re niarlcs ~, u,J ' d} _ £ 1. J, 6tl. J. 1 I!'. t A.-t. Jf u. 1- ... ' ~ t. 0 8, ~" ~l. Ut i n. l?i 1 ~t• k 

8. Le ac h ate E xtr acti o n Rec or ds □ Rea dil y a vaila b le □ U p t o date O N/ A 

R e m ar k s &. ~t. o O.,,J,. L 'r nt u.. - 1,. a 1 K. Jt',. _: 1,, o ', ff. A w a.ir-.l r r 9. D c h ar g e C o ptia oce Rec or ds 

A i r o Rea dil y a vaila ble □ U p t o da te lil'. N/A 

\It. Water (effl ue nt) o Rea dil y a vaila ble a U p t o da te O N/ A 

Re mar ks ~, ~ti I .t ~\tl wi ~ Off A I , ~, u: J i. ~ w 1 :tt E 1 > A llllt!lt .. ..., d· 

1 0 . D ail y Access/ Sec 1 1rit y L o gs a Rea dil y a vaila ble □ U p t o date O N/ A 

R e m ar k s 

E- 3 
I V, O & M C O S T S 

1. & M O r g a oi mti o o 

o State i n-h o use c C o ntract or f or State 

a P R P i n- h o use ~ C o ntr a ct or f or P R P 

□ Fe deral Facilit y i n - h o u s e □ C o ntract or f or Fe deral Facilit y 

c O t her 

'• 

2. & M C ost R e co r ds 

c Rea dil y a vaila ble U p t o date 

a F u n di n g mec ha nis m/a gree me nt i n place 

Ori gi na l O & M c o st esti mate a Brea k d o w n attac he d 

T ota l a n n ual c ost by year f or re vie w peri o d if a vaila ble 

Fr o m T o a Brea k d o w n attac he d 

Date Date T otal c ost Fr o m T o o Brea k d o w n attac he d 

Date • Date T ota l c ost 

Fr o m T o a Brea k d o w n attac he d 

Date Date T otal c ost 

Fr o m T o o Brea k d o w n attac he d 

Date Oat T otal c ost 

Fr o m T o o Brea k d o w n attac he d 

Date Date T otal c ost 

3. U n a nt ici pat e d o r U n us u a lly H J g b O & M C osts D o ri n g R e v ie w P e ri o d 

Desc; o e c o st s a n d reas o ns: 

V. A C C E S S A N D IN S TI Tl J TI O N A L C O N T R O L S o A p plica ble O N/ A 

A. F e n ci n g 

I. F e nci n g d J. a g e d □ L ocati o n s h o w n o n site ma p □ Gates sec ure d )'. NI A 

Re mar ks .,,., ; ... II, 1 1i. - ~ ,.,. II. o... /l,. -, _J tt. ~ d • cl· ... t. J J a.... _ _,,,. _,,, _• ,., J 

~ .. u I. U ~ ~ A J ' J . V 

B. Ot he r Access Restricti o ns 

I . Si g ns a n d ot h er sec urit y meas ures a L ocati o n s h o w n o n site ma p l)J' N/ A 

R e m ar k s t v "!t: al b' ii,.,J J n 1i- 4 4 . 

E - 4 
C. l nstit uti o n al C o ntr ols (( Cs) 

t. I m ple me nt ati o n a n d e nf orce me nt 

Site c o n diti o ns i m pl y I Cs n ot pr o perl y i m ple me nte d Y e s M N o O N/ A 

Si te c o n diti o ns i m pl y I Cs n ot bei n g f ull y e nf o n:e d Yes )It N o O N/ A 

1: ~i•!l T y pe of m o nJt ori n g (e. g., self-re p orti n g. dri v b y) _ Fre q ue nc y ~ " ~ ~ ..... Res p o nsi ble part y/a ge nc y !l ~ ~ I ~,.. C o ntact 

Na me Title Date P h o ne n o. 

Re p orti n g is u p-t < Hiate ' e s o N o ~ A 

Re p orts are verifie d b y t he lea d a ge nc y o v es N O ) Q, VA 

S pecific re q uire me nts i n dee d or decisi o n d oc w n ents ha ve b e e n : n et ~ Yes o N o N/ A 

Vi olati o ns ha v bee n re p orte d Y e s )(.N o N/ A 

Ot her pr o ble ms or s u g gesti o ns: □ Re p ort attac he d 

. 

2. A d e q u a c y ~ Cs a.re a de q uate o I Cs are i na de q uate O N / A 

R e m ar k s ~c.. a &.,l. h ~! i n ' 2... o ll 

D. Ge ner al 

J. V a n d alls m/ &es p a l o g o L ocati o n s h o w n o n site ma p X N o va n dalis m e vi de nt 

Re mar ks , Sij"' ~ ,I V d n J . f . s . M u:. -- h,., 5 ~ A S'. 1'°" 1,. ; . 

2. L a n d use c h a n ges o n sit e ~ / A 

Re mar ks 

3. L a n d use c ha n ges o f f s l t e A l Mi 1. ~, r d"'(.i'i•" f ~) Re mar ks t'\. . . .. 1 - _.J .• 1. ...... .. . J. J. ·t-, ·, .... \., 1:.- L . ... ,.,. _l.. _ .. L...-f l-fi•., 

A ..t! ~ .... l, J - P, v,: I: 1 w. ' 1... ~ • ., • r , 4.!,n 6\ I\ , .... fll . " " VI. G E N E R A L SI T E C O N Dffl 0 N S · 

A. R o a ds o A p plica bl e )(..NI A 

1. R oa ds d a m a g e d o L ocati o n sh o w n o n site ma p )' R o ads a d e u a t e □ NI A 

Re mar ks t _ a ~ Ji [ 1. J,: I/ J oi - J, fi.l( ,·-, --} 1. 1.I.. "---.. !! 2 ri ~ ! J D. ;,,. J ~ 

1 1, _, J - ~, -' 

,-, 

E- 5 
B. Ot h er Sit e C o n d iti o ns 

R e m ar k s 

' 

C M S D VII. L A N D FI L L C O V E R S ~ p pli c a bl e □ N/ A 

A. L a n dfi ll S urf ace 

1. Settle me nt ( L o w s p ots) C J L ocati o n s h o w n e n site ma p ~ ettle me nt n ot e vi de nt 

Area l e xte nt De pt h 

R e m ar k s 

2. Cr ac ks . □ L ocati o n sh o w n o n site ma p ~ Crac ki n g n ot e vi de nt 

Le n gt hs Wi dt hs De pt hs 

Re mar ks 

3. Er osi o n □ L ocati o n s h o' Ml e n site ma p ~ Er osi o n n ot e vi de nt 

Areal e xt e nt De pt h 

R e m ms 

4. H oles C J L o c ati o n s h o w n e n site ma p 3⁄4f ol es n ot e vi d e nt 

Area l e xt e nt De pt h 

R e m ar k s 

s. Ve get a ti ve Co ver )(.Grass of c o ver pr o perl y esta blis he d ?Jft w o si g ns of stress 

c Trees/ S hr u bs (i n dicate size a n d l ocati o ns o n a dia gra m) 

Re mar ks 

6. Alter n ati ve C o ver ( ar m ored r oc k, c o ncrete, etc.) :J N/ A 

Re mar ks 

7. B ul ges □ L o c ati o n h o w n on site ma p ~ ul ges n ot e vi de n t 

Areal e xte nt Hei g ht 

R e m ar k s 

E- 6 
O S W E R N o . 9 3 5 5 . 7.() 3/J. P 

8. Wet Are as/ W ater D a m a ge }'(.Wet areas/ water da ma ge n ot e vi de nt 

o wet are as □ L ocati o n s h o w n o n site ma p Areal e xte nt 

P o n d i n g □ L ocati o n s h o w n o n site ma p Areal e xte nt 

s e e p s □ L ocati o n s h o w n o n site ma p Areal e xte nt 

□ S oft s u b gra de c L ocati o n s h o w n o o site ma p Areal e xte nt 

Re mar ks 

9. , Sl o pe I nst a bilit y □ Sli des □ L ocati o n s h o w n o n site ma p ~ o e vi de nce of sl o pe i nsta bilit y 

Areal e xte nt 

R e m ar k s 

B. Be nc hes □ A p plica ble ~ ( H oriz o ntall y c o nstr ucte d m o u n ds of eart h place d acr oss a stee p la n dfill si de sl o pe t o i nterr u pt t he sl o pe 

i n or d er t o st o w d o w n t he vel ocit y of s urface r u n off a n d i nterce pt a n d c o n ve y t he r u n off t o a li ne d 

c ha n nel.) 

1. Fl o ws B y p ass Be nc h o L ocati o n s h o w n o n site ma p 'r/- Nt A or o ka y 

R e m ar k s 

2. Be nc h Bre ac he d □ L ocati o n s h o w n o n site ma p '°fNI A or o ka y 

Re mar ks 

3. Be nc h O vert o p pe d o L ocati o n s h o w n o n sit e ma p "t{: NI A or o ka y 

Re mar ks 

C. Let d o w n C h a n nels □ A p plica ble O N / A 

( C ha n nel li ne d wit h er osi o n c o ntr ol mats .,.ri pra p. gr o ut ba gs, or p bi o ns t hat desce n d d o w n t h e stee p si de 

sl o pe of t he c o ver a n d will all o w t he r u n off water c ollecte d b y t he be nc hes t o m o ve off of l he la n dfill 

c o ver wit h o ut creati n g er osi o n g ullies .) 

1. Settle me nt □ L ocati o n s h o w n o n site m a p ~ o e vi de nce of settle me nt 

Areal e xte nt De pt h 

R e m ar k s 

2. M ateri al De gr a d a d o n o L ocati o n s h o w n o n site ma p ~ o e vi de nce of de gra dati o n 

Material t y p e Areal e xte nt 

Re mar ks 

3. Er o i o n o L ocati o n s h o w n o n ite ma p ~ o e vi de nce of er osi o n 

Areal e xte nt De pt h 

Re mar ks 

E - 7 
O S J Y E R N o . 9 3 5 5. 7- 0 3 B- P 

4. U n derc u Ul n g a L ocati o n s h o w n o n site m a p ~ o e vi de nce of u n derc utti n g 

Areal e xte nt D e pt h 

R e m ar k s 

s. O hstr uct· o os T y pe ~ o o bstr ucti o ns 

o L ocati o n s h o w n o n site ma p Areal , xte nt 

' Size 

Re mar ks 

6. E xcessi ve Ve get ati ve Gr o wtl a T y p e 

1- N' o e vi de nce of e xcessi ve gr o wt h 

a Ve getati o n i n c ha n nels d oes n ot o bstr uct fl o w 

a L ocati o n s h o w n o n sit e ma p Areal e xte nt 

Re mar ks 

D. C o ver Pe netr ati o ns a A p plica ble O N/ A 

I. G as Ve nts • a Acti ve o Passi ve 

a Pr o perl y sec ure d/l oc ke d o F u ncti o ni n g a R o uti nel y sa m ple d □ O o o d c o n diti o n 

o E vi de nce of lea ka e at pe netrati o n o Nee ds Mai n te nance 

~I A mar ks 

2. G as M o nit ori n g Pr o bes 

a Pr o perl y sec ure d/l oc ke d o F u ncti o ni n g o R o uti nel y sa m ple d o G o o d c o n diti o n 

□ E vi de nce of lea ka ge at pe netrati o n □ Nee ds Mai nte na nce ~ A 

Re mar ks 

3. M o nit ori n g Wei ( wit hi n s urface area ofla n dfill) 

o Pr o perl y sec ure d/l oc ke d o F u ncti o ni n g a R o uti nel y sa m ple d a G o o d c o n diti o n 

o E vi de nce of lea ka ge at pe netrati o n o Nee ds Mai nte na nce "'If. NI A 

Re mar ks 

4. Le ac h ate E xtr acti o n Wellt 

a Pr o perl y sec ure d/l oc ke d a F u ncti o ni n g o R o uti nel y sa m ple d □ G o o d c o n diti o n 

o E vi de nce of lea ka ge at pe netrati o n □ Nee ds ,tai nte na nce ~ A 

Re mar ks ~.-.t Jil All St ~ ~ ~ ~ 4.t ~ . t p b ~ 1-t 

6 

s. Settle me nt M o n u me nts o L ocate d a R o uti nel y s ur ve ye d i, NI A 

Re mar ks 

E- 8 
O S W E R N o. 9 3 5 5 7- 0 3 B- P 

E. G as C ollecti o n a n d Tr e at m e nt c A p plica ble ~ A 

I 

I. G as Tre at me nt F acilities 

c Flari n g a T her mal destr ucti o n a C ollecti o n f or re use 

a G o o d c o n d i t i o n □ Nee ds Mai nte na nce 

R e m ar k s 

. 2. G as C o Oeetl o n Wells, M a nif ol ds a n d Pl pi o g 

c G o o d c o n d i t i o n □ Nee ds Mai nte na nce 

Re mar ks 

3. G as M o nit ori n g F acllitie a ( e. g., gas m o nit ori n g of a djace nt h o m:s or b uil di n gs) 

c O o o d c o n d i t i o n □ Nee ds Mai nte na nce A 

Re mar ks 

F. C o ver Dr ai n a ge L a yer a A p plica ble ~ / A 

l. O utl et Pi pes I ns pecte d . □ F u ncti o ni n g O N/ A 

R e m ar k s 

2. O utl et R ocle l os pecte d □ F u ncti o ni n g O N/ A 

Re mar ks 

G. Dete nti o n/ Se di me nt ati o n P o ds a A p plica ble l:f N/ A 

I. Silt ati o n Areal e xte nt De pt h A 

a Siltati o n n ot e vi de nt 

Re mar ks 

2. Er osi o n Areal e xte nt De pt h 

□ Er osi o n n ot e vi de nt 

Re mar ks 

3. O utlet- W or ks o F u ncti o ni n g N/ A 

Re mar ks 

4. D a m □ F u ncti o ni n g N / A 

Re mar ks 

E- 9 
O S W E R N o . 9 3. 5 5 . 7.(] 3 8- P 

H. Re ai n n g W a ls o A p plica ble ti- NI A 

1. Def or m ati o ns o L ocati o n s h o w n o n site ma p a Def or ma ti o n n ot e vi de nt 

H oriz o ntal dis p lace me nt Vertica l dis place me nt 

R otati o nal dis lace me nt 

R e m ar k s 

2, . De gr a d ati o n a L ocati o n s h o w n o n site ma p o De gra dati o n n ot e vi de nt 

Re mar ks 

I. Peri meter Ditc hes/ Off -Site Dlsc b ar ge a A p plica b le 't:J/ NI A 

1. Silt at io n a L ocati o n s h o w n o n site ma p □ Si ltati o n n ot e vi de nt 

Areal e xte nt De pt h 

Re mar ks 

2. V e g et ati v e Gr o wt h o L ocati o n s h o w n o n site ma p ' 1 1.. N/ A 

o Ve getati o n d oes n ot i mee de fl o w 

Areal e xte nt T y pe 

Re mar ks 

3, Er osi o n o L ocati o n s h o w n o n site ma p a Er osi o n n ot e vi de nt 

Ar e al e xte nt De pt h 

Re mar ks 

4. Disc h ar ge Str uct ure □ F u ncti o ni n g O N/ A 

Re mar ks 

~ D. V E R TI C A L B A R RI E R W A L S o A p pli c a bl e ~/ A 

I. Se ttle me nt ~ c ati o n s h o w n o n site ma p 0 Settle me nt n ot e vi de nt 

Ar e al e xt e nt De pt h 

Re mar ks 

' '-.... _ _ 

2. Perf or m a nce M o nlt orl n g T y p e of m o nit o ~ 

o Perf o n na nce n ot m o nit ore d 

Fre q ue nc y ~ e n c e of breac hi n g H e a d differe ntial 

Re mar ks 

E - 1 0 
, _ ... 

O S W E R N o. 9 3 5 5 . 7- 0 3 B- P 

I X. G R O U N D W A T E R/ S U R F A C E W A T E R R E M E DI E S ~ pli c a bl e D N/ A 

A. Gr o u n d at er E xtr a cti o n Wells, P u m ps, a n d Pi p eli n es ~ p pli c a bl e N / A 

). P u m ps, W ell h e a d Pl u m bi n g, a n d El e ctri c al 

l}(. G o o d c o n diti ~n o All r e q uir e d wells pr o perl y o p e ~ g ~ e e ds Mai nte na nce a NI A . 

' ~:r :; 5 ~- ~ ~- ~ · ~' Wt,, ~ ~- ~

2. E nr a cti o o S yst e m Pi p eli n est Val ves, V al v e B o xes, a n d Ot h er A p p urt e n a n c es 

a G o o d c o n diti o n. ' 1 N e e ds Mai nte na nce 

Re mar ks 5. H ~ ~ L 

3. S p ar e P arts a n d E q ui p m e nt 

□ Rea dil y a vaila ble □ G o o d c o n d i t i o n □ Re q uires n p gra de o Nee ds t o be pr o vi de d 

Re mar ks 

B. S urf a c e W at er C ollecti o n Str u ct u rt $t P o m ps, a n d Pi p eli n es a A p pl ica bl ~ I A 

1. C oll e cti o n Str u ct ur es, P u m ps, a n d El e ctri c al 

□ G o o d c o n diti o n a Nee ds Mai nte na nce 

Re mar ks 

2. S urf a c e W ater C o ctl o n S yste m Pi p eli n es, V al v es, V al v e B o xes, a n d Ot h er A p p urt e n a n c es 

□ G o o d c o n diti o n o Nee ds Mai nte na nce 

Re mar ks 

3. S p ar e P art s a n d E q ui p m e nt 

□ R e a dil y a vaila ble a G o o d c o n diti o n O Re q uires u p gra de o Nee ds t o b e pr o vi de d 

Re mar ks 

E- 1 1 
• 

C. Tre at me nt S yste m □ A p plic a ble t p: 4/ A 

1. Tre at me nt Tr ai n ( C h ~ k c o m p o ne nts t h at a p pl y) 

a Metals re m o val □ Oil/ water se parati o n o Bi ore me diatl o n 

o Air stri p pi n g o Car b o n a ds or bers 

a Filters 

o A d diti ve (e. g., c helati o n a g e nt fl occ ule nt) 

□ Ot hers ' □ G o o d c o n diti o n a Nee ds Mai nte na nce 

o Sa m pli n g p orts pr o perl y m ar k e d a n d f u ncti o nal 

□ Sa m pli n w mai nte na nce l o g dis pla ye d a n d u p t o date 0 E q ui p me nt pr o perl y i de ntifie d 

o Q ua ntit y of 8J'( > u n d water treate d a n n uall y 

c Q ua ntit y of s urface water tr e at e d .a n n uall y 

Re mar ks 

2. El e ctri c al E ncl os ures a n d Pa nels ( pr o perl y rate d a n d f u nctio nal) 

O N/ A □ G o o d c o n diti o n o Nee ds Mai nte na nce 

R e m ar k s . 

3. T a n ks, V a ulcs, St or a ge v; els 

N/ A a G o o d c o n diti o n o Pr o per sec o n dar y c o ntai n me nt Q Nee ds Mai nte na nce 

Re mar ks 

4. D be h ar ge Str uct ure a n d A p p urte n a nces 

O N / A o O o o d c o n d i t i o n □ Nee ds Mai nte na n ce 

Re mar ks 

s. T r e at m e nt B uil di n g(•) 

N/ A a G o o d c o n diti o n ( es p. r o of a n d d o or wa y s) □ Nee ds re pair 

□ C he micals a n d e q ui p me nt pr o perl y st ore d 

Re mar ks 

6. M o nit o ri n g Wells ( p u m p a n d treat me nt re me d y) 

□ Pr o P,erl y sec ure d/l oc ke d a F u ncti o ni n g □ R o uti nel y sa m ple d a G o o d c o n diti o n 

□ All re q uire d wells l ocate d o Nee ds ai nte na nce O N / A 

Re mar ks 

D. M o nit ori n g D at a 

I. M o nit ori n g Data 

- □ ls r o uti nely s u b mitte d o n d me 'tf.Js of ac e pta b le q ua lit y 

2. M o n it ori n g data s u g ge ts: 

~r o u n d w at er pl u me i s effecti vely c o ntai ne d ~ C o nta m i nant o n ce n trati ns are dec li i n g 

.! S W, Q <..,\\ ~, c(', d....,t,.J \ Ht 

E- 1 2 
D. M o nit ore d N at ur al Atte n u ati o n 

I. M o nit ori n g We ls ( nat ural atte n uati o n re me d y) 

~ p erl y sec ure d/l oc ke d )( F u n cti o ni n g S 1- R o uti nel y sa m ple d 

!( A U re q uire d wells l ocate d o Nee ds Mai nte na nce 

Re mar ks Qt\ t ' ¥'" ~ w,t}\) \ oc. At ~ 1 1 1 1, 1. 0\ 1, v. o n mrt _,, 

X. O T H E R R E M E DI E S 

~ o o d c o n dit io n 

O N/ A 

Yi L p d · 

If t here are re me dies a p pli e d at t he site w hic h are n ot c o vere d a b o ve, attac h a n i ns pecti o n s heet descri bi n g 

t he p h ysical nat ure a n d c o n diti o n of a n y facilit y ass ociate d wit h t he re me d y. A n e xa m ple w o ul d be s oil 

va p or e xtracti o n. 

XI. O V E R A L L O B S E R V A TI O N S 

A. I m ple me ntati o n of t he Re me d y 

Delcri be iss ues a n d o bser v ati o ns rel ati n g t o w het her t he re me d y is effecti ve a n d f u ncti o ni n g as desi g ne d. 

Be gi n wit h a brief st ate me nt of w h at t he re me d y i s t o acc o m plis h (i.e., t o c o nt ai n c o nt a mi n a nt pl u me, 

mir.i mize i nfiltr ati o n a n d g as e missi o n, etc.). 

E n gi n e eri n g c o ntr ols a n d I Cs ar e i n pl a c e a n d ar e eff e cti v e. C M S D l a n dfill c o v er is i n 

g o o d c o n diti o n a n d t h e will o w tr e es ar e eff e cti v el y t a ki n g u p s e e p w at er . T h e F S P S A 

s pr a yfi el d is f u n cti o ni n g as d esi g n e d. T h e R a n n e y w ell is f u n cti o ni n g a n d b ei n g 

p u m p e d at t h e mi ni m u m p u m p r at e. C h a n g es i n h y dr a uli c gr a di e nt si n c e 2 0 1 2 h a v e 

r es ult e d i n pl u m e n ot b ei n g f ull y c o nt ai n e d , t h o u g h it is u n k n o w n w h et h er t h e 

u n c o nt ai n e d fl o w is c o nt a mi n at e d. 

B. A de q u ac y of O & M 

Descri be iss ues a n d o bser v ati o ns rel ate d t o t he i m ple me nt ati o n a n d s w p e of O & M pr oce d ures. I n 

p ar.ic u J ar. disc uss t heir rel ati o ns hi p t o t he ~ urre nt a n d J o o g te n n pr ot ~ti ve ness of t he re me d y. 

T h e R a n n e y w ell p u m pi n g r at e n e e ds t o b e i n cr e as e d i n or d er t o e ns ur e l o n g-t er m 

pr ot e cti v e n ess of t h e r e m e d y a n d e ns ur e t h e c o nt a mi n at e d gr o u n d w at er is n ot 

e nt eri n g t h e O hi o Ri v er . A e v al u ati o n of t h e R a n n e y w ell a n d F S P S A s pr a yfi el d 

s h o ul d b e d o n e t o d et er mi n e t h e eff e cti v e n ess of t h e r e m e di es o v er t h e l o n g-t er m. 

E- 1 3 
c. E arl y I n dic at ors o( P ote nti al Re me d y Pr o ble ms 

D e s cri b e iss ues a n d o bser v ati o ns s uc h as u ne x pecte d c h a n ges i n t he c ost or sc o pe of O & M or a hi g h 

fte q ue nc y of u nsc he d ule d re p airs, t h at s u g gest t h at t he pr otecti ve ness of t he re me d y m a y be c o m pr o mise d 

i n t he f ut ure. 

C h a n g e i n gr o u n d w at er fl o w i n di c at es t h at mi ni m u m p u m pi n g r at e of t h e R a n n e y 

\ w ell m a y n e e d t o b e i n cr e as e d t o e ns ur e f ull c o nt ai n m e nt of t h e pl u m e. 

D. O p p o rt u niti es f or O pti mi z ati o n 

Desc n oe p ossi ble o p p ort ~ities f or o pti miz ati o n i n m o nit ori n g t as ks or t he o per ati o n oft be re me d y . 

A st u d y s h o ul d be c o n d u ct e d t o d et er mi n e t h e eff e cti v e n ess of i n cr e asi n g t h e 

p u m pi n g r at e at t h e R a n n e y w ell i n c o nt ai ni n g t h e gr o u n d w at er pl u m e. A st u d y 

c o ul d als o be c o n d u ct e d t o d et er mi n e t h e eff e cti v e n ess of t h e F S P S A s pr a yfi el d i n 

fl us hi n g c o nt a mi n at es. 

E- 1 4 
A P P R O XI M A T E A R E A O F O R M E T P L A N T P R O P E R 

e M W- 2 6 5 & 0 

O R M E T R A N N E Y 

W E L L 

Y.! 1 ¥.ll I 

A A e M W- 8 

LI N T E R C E P T O R W E L L S 

O HI O RI V E R 

H y Jr o S yst e ms M ... n,. g e m e n{, I n c. -

G/, us W o,. ks C e nt er S uit e 1 0 9 

: J:i J S. M 1ti n Str e et 

W as hi n gt o n, P e n ns y} v 4 n 1 4 J S: J O J 

D A T E 7 1 1 0; 9 7 

D A T E 

P L A N T 

F S P S A 

0- / R E C R E A TI O N 

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M W- 1 5 e ~/' 0 2 d 

t T H- 1 1 

M W- 1 8 • 1 

"'l ~ "';::,., w. F O P N o. 5 ~;; 7•••:,. ~"""' / F O P F O P e M W - 2 9 S & N 0 . 3 

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s w ~ 

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N o. 1 N o. 2 

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C R D A ~ C M S D 

~ 0 0 4 O U T F A L L 

B A C K W A T E R A R E A 

L E G E N D 

M O NI T O RI N G W E L L S l N S T A L L E D D U RI N G 1 9 7 2 F R E D K L AI R & A S S O C. S T U D Y. 

M O Nl T D RI N G W E L L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T > & MI L L E R, I N C, 

S T U DI E S. S & D I N DI C A T E S A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L O W A N O 

A D E E P M O NI T C R[ N G W E L L. 

~ M W- 4 2 5 & 0 M O Nl T O Rl N G W E c L S l N S T A L L E □ D U RI N G P H A S E I RI < T A S K 3- E J. S & D I N DI C A T E S 

A W E L L C L U S T E R C D N SI S TI N G O > A S H A L L O W A N D A D E E P M O NI T O RI N G W E L L. 

DI S P O S A L P O N D P E RI M E T E R S OI L B O RI N G U I P P E D WI T H A L L U VI A L 

A Q UI F E R PI E Z O M E T E R, 

W E L L S A 8 A N O O N S O O N A P RI L 2 9 A N O A P RI L 3 0, 1 9 9 7. 

B A S E M A P FI G U R E 

O R M E T C O R P O R A H J N 1 H A N NI B A L O H! 
A P P R O XI M A T E A R E A O F 

O R M E T P L A N T P R O P E R 

O R M E T R A N N E Y 

W E L L 

R P- 2 

6 2 3- 7 8 

O HI O RI V E R 

H y Jr o S yst c ms M a m, g e m e nt, I n c. -

Gi us W or ks C e nt er S uit e 1 0 9 

;I;I J S. M. ai n Str e et 

W. as hi n gt o n, P e n ns y/ v, a ni a 1 5:f O J 

P R O J E C T N O.: H M O O J Ol 

C 0 7 1 0 9 7 B 

D A T E 

F S P S A e M W- 3 8 

6 4 6- 6 6 

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M W- 1 9 

, 2 0- 5 3 

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L E G E N D 

M O N! T O RI N G W EI L S I N S T A L L E D U R I N G 1 9 7 2 F R E D K L A I R & A S S D C . 

S M W- 2 4 S & 0 M O N! 1 0 RI N G W E L L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T Y & MI L L E R, I N C, 

l T g g J P ; , N ~ T ~ a ? , t ~ J [ t ; E S A W E L L C L U S T E R C O N SI S TI N G F A S H A L L O W A N D 

< $ , M W - 4 2 S & □ ~ o ~ g e R ~ ~ 3 s m L ~ o ~ m ~ ~ ~ ~ D o ~ u: l ~ ~ A ~tt ~ E A ~ □ ~ 1 6 W\ 6 ~ Tf o R 1 ~ G & W ~ L/ ~ 0 I C A T E S 

~ j ~ ~ ~ L p j ~ ~ g M ~ ~ ~ ~ ~ E T E R S OI L S O RI N G E O UI P P E D WI T H A L L U VI A L 

W E L L S A B A N O N E D O N A P R I L 2 9 A N D A P R ! L 3 0 , 1 9 9 7. 

G R O U N D- W A T E R E L E V A TI O N C O N T O U R LI N E ! F E E T M S Ll 

G E N E R A L DI R E C TI O N O F G R O U N D- W A T E R F L O W 

G R O U N D- W A T E R E L E V A TI O N C O N T O U R M A P ( B A S E D O N D A T A C O L L E C T E D M A Y 5, 1 9 9 7) 

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M O N/ T O R/ N G W E L L S I N S T A L L E D D U RI N G 1 9 7 2 > R E D K L A/ R I,, A S S O C, S, U D Y. 

M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T Y & MI L L E R• / N C. 

S T U DI E S. S & D I N D! C A T E S A W E'. L C L U S T E R C O N S\ S TI N G D F A S H A L L O W A N D 

A D E E P M O NI T O RI N G W E L L. 

M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G P H A S E I RI ! T A S K J- E J. S & D I N DI C A T E S 

A W E L L C L U S T E R C O N SI S T/ N G O F A S H A L L O W A N D A D E E P M O NI T O RI N G W E L'-· 

D/ S P O S A L P O N D P E RI M E T E R S OI L B O RI N G E O U/ P P E D WI T H A L L U V/ A L 

A O Ul F E. R Pl E Z G M E T E R. 

W E L L S A B A N D O N E D O N A P RI L 2 9 A N D A P RI L J O. 1 9 9 7. 

- 6 1 0- G R O U N D- W A T E R E L E V A TI O N C D N T O U R LI N E! F E E T, M S LI 

--- =:::,.. _ G E N E R A L DI R E C TI O N O F G R O U N D- W A T E R F L O W 

G R O U N D- W A T E R E L E V A TI O N C O N T O U R M A P < B A S E D O N D A T A C O L L E C T E D A P RI L 1 7, 1 9 9 8) 

FI G U R E 

3 H A N NI B A L O R M E T C O R P O R A TI O N O HI O 
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Hr Jr o Srst e ms M a n a g e m e nt, I nc. 

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M O N! 1 0 RI N G W E L L. S ! N S T A L. L. E D D U RI N G 1 9 8 3 &. 1 9 8 6 G E R A G H T Y & MI L L E R, I N C. 

S T U DI E S. S &. 0 I N DI C A T E S A W E L L C L U S T E R C O N S! S T! N G O F A S H A L L O W A N O 

A D E E P M O NI T O RI N G W E L L-

., M W- 4 2 S &. 0 M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G P H A S E I RI < T A S K 3- E J. S & 0 I N DI C A T E S 

A W E L L C L U S, E'l C O N SI S TI N G O F A S H A L L O W A N D A D E E P M O N! T O RI N G W E L L. 

DI S P O S A L P O N O P E RI M E T E R S OI L B O RI N G E Q UI P P E D Wl, H A L L U VI A L 

A O UI F E R PI E Z O M E T E R. 

W E L L S A B A N D O N E D O N A P RI L 2 9 A N O A P RI L 3 0, 1 9 9 7. 

PI E Z □ M E T E R O A S A G E D D U R i N G R E M E DI A L C O N S T R U C T I O N. 

W A T E R- L E V E L E L E V A TI O N C O N SI D E R E D A P P R O XI M A T E 

6 1 0--- G R O U N D- W A T E R E L E V A TI O N C O N T O U R LI N E ! F E E T M S L I 

G E N E R A L D I R E C T I O N O F G R O U N - W A T E R F L O W 

G R O U N D- W A T E R E L E V A TI O N C O N T O U R M A P < B A S E D O N D A T A C O L L E C T E D A U G U S T 3 1, 1 9 9 8) 

FI G U R E 

O R M E T C O R P O R A TI O N 4 H A N NI B A L O HI O 
A P P R O XI M A T E A R E A O F 

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M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G 1 9 7 2 F R E D K L AI R & A S S O C. S T U D Y. 

S M W- 2 4 S & D M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T Y & MI L L E R, I N C. 

S T U DI E S. S & D I N DI C A T E S A W E L L CI _ U S T E R C O N SI S" TI N G C F A S H A L L O' H A N D 

A D E E P M O NI T O RI N G W E L L. 

~ M" H- 4 2 S & D M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G P H A S E I RI [ T A S K 3- EI. S & O I N DI C A T E S 

A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L W A N D A D E E P M O N I T O R I N G W E L L . 

DI S P O S A L P O N D P E RI M E T E R S OI L B O RI N G E Q UI P P E D WI T H A L L U VI A L 

A Q UI F E R PI E Z D Mt T E R. 

W E L L S A B A N O O N E O O N A P RI L 2 9 A N D A P RI L 3 0. 1 9 9 7. 

F L U O RI D E I S O P L E T H M A P FI G U R E 

F O R T H E A L L U VI A L A Q UI F E R < B A S E D O N S A M P L E S C O L L E C T E D J U N E- J U L Y, 1 9 8 8) 5 O R M E T C O R P O R A TI O N H A N NI B A L O HI O 
A P P R O XI M A T E A R E A O F 

O R M E T P L A N T P R O P E R 

M W- 1 0 e 

o.s 1 6 M W- 8 

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M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G 1 9 7 2 F R E D K L. AI R /l. A S S O C, S T U D Y. 

M O N! T O RI N G W EI. L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T Y /l. MI L L E R, I N C, 

S T U DI E S. S & D I N DI C A T E S A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L O W A N O 

A D E E ? M O NI T O RI N G W E L L. 

~ M W- 4 2 S & O '-I O Nl T O RI N G W E L L S I N S T A L L E D D U RI N G P H A S E I RI \ T A S K 3- EI. S /l. O I N DI C A T E S 

A W E L L C L U S T E o C O N SI S T J N G O F A S H A L L O W A N D A D E E P M O NI T O Rl N G W E L L, 

D! S P O S A L P O N D P E RI M E T E R S DI L B O R J N G E O UI P P E D WI T H A L L U VI A L 

A O UI F E R PI E Z O M E T E R, 

W E L L S A B A N D O N E. D O N A P RI L 2 9 A N D A P RI L 3 0, 1 9 9 7. 

F L U O RI D E I S O P L E T H M A P F O R T H E A L L U VI A L A Q UI F E R 

FI G U R E 

< B A S E D O N S A M P L E S C O L L E C T E D 6 J A N U A R Y 1 9 9 5) lfl Mlf I O R M E T C O R P O R A TI O N W as hi n gt o n, P e n ns y] v 4 ni a ] 5:f O J 1-------------- 1 H A N NI B A L O HI O 
A P P R O XI M A T E A R E A O F 

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M O NI T O RI N G W E,. L S I N S T A L L E D D U RI N G 1 9 7 2 F R E D K L AI R & A S S O C. S T U D Y. 

$ M W- 2 4 S & D M O NI T O RI N G '" E L L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T Y & MI L L E R, I N C. 

; T g ~ J ~ \ . N T T ~ 9 N t ~ J E t ' . E s A W E L L C L U S T E R C O N SI S TI N G F A S H A L L O W A N D 

"" M W- 4 2 S & D M O NI T O RI N G W E,. L S I N S T A L L E D D U RI N G P H A S E I RI < T A S K 3- E J. S & D I N DI C A T E S 

A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L D W A N O A O E E P M O NI T O RI N G W E L L. 

DI S P O S A L P O N O P E RI M E T E R S OI L B O RI N G E Q U J ? P E D W! T H A L L U VI A L 

A O UI F E R PI E Z o, e E T E R. 

W E L L S A B A N D O N : : □ O N A P R! L 2 9 A N D A P RI L 3 0, 1 9 9 7. 

-- 1 0-- F L U O RI D E C O N C'.:. N T R A TI O N C O N T O U R l m g/ Ll 

F L U O RI D E I S O P L E T H M A P F O R T H E A L L U VI A L A Q UI F E R FI G U R E 

< B A S E D O N S A M P L E S C O L L E C T E D M A Y 5- 9, 1 9 9 7) 

O R M E T C O R P O R A TI O N 7 H A N NI B A L O HI O 
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M O NI T O RI N G W E'" L S I N S T A L L E D D U RI N G 1 9 7 2 F R E D K L AI R & A S S O C. S T U D Y. 

$ M W- 2 4 5 & 0 M O NI T O RI N G W E L L S I N S T A L L E D O U R I N G 1 9 8 3 ~ 1 9 8 6 G E R A G H T Y 6 MI L L E R, ! N C. 

S T U DI E S. S & D I N Ol C A H S A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L O W A N O 

A O E E P M O N! T O RI N G W E L L. 

~ M·•- 4 2 S & O M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G P H A S E I RI ! T A S K 3- EI. S & 0 I N DI C A T E S 

A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L O W A N O A D E E P M O NI T O RI N G W E L L. 

1 " P P B- 0 9 DI S P O S A L P □ N O P E R ! M E T E R S I L B O R I N G E Q U I P P E D W J T H A L L U V I A L 

A Q UI F E R PI E Z O M E T E R. 

W E L L S A B A N 0 0 N c O O N A P RI L 2 9 A N O A P RI L 3 0, 1 9 9 ?. 

M W- 3 6 D A M A G E G A N O N O T S A M P L E D D U RI N G M A Y 1 9 9 8 S A M P LI N G E V E N T. 

F L U O RI D E C O N C E N T R A TI O N C O N T O U R I N F E R R E D F R O M P R E VI O U S R E S U L T S. 

F L U O RI D E C O N C E N T R A TI O N C O N T O U R l m g/ L J 

F L U O RI D E I S O P L E T H M A P F O R T H E A L L U VI A L A Q UI F E R FI G U R E 

< B A S E D O N S A M P L E S C O L L E C T E D M A Y 4- 8, 1 9 9 8) 8 O R M E T C O R P O R A TI O N H A N NI B A L O HI O 
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Mll NI T O RI N G W E L L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T Y & MI L L E R, I N C. S T U DI E S, S & D I N DI C A T E S A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L O W A N D A D E E P M O N ! T O R I N G W E L L, 

M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G P H A S E I RI ( T A S K 3- El, S & D I N DI C A T E S A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L O W A N D A O E E P Mll NI T O RI N G W E L L, 

DI S P O S A L P O N D P E Rlt. E T E R S OI L B O RI N G E Q UI P P E D WI T H A L L U VI A L A Q UI F E R PI E Z Ot. E T E R. 

W E L L S A B A N D O N E D O N A P RI L 2 9 A N D A P RI L 3 0. 1 9 9 7, 

- 5 - T O T A L C Y A NI D E C O N C E N T R A TI O N C O N T O U R I m g/ L) 

T O T A L C Y A NI D E I S O P L E T H M A P FI G U R E 

< B A S E D O N S A M P L E S C O L L E C T E D J U N E - J U L Y, 1 9 8 8) O R M E T C O R P O R A TI O N 9 H A N NI B A L O HI O 
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M D NI T O RI N G W E L L S I N S T A L L E D D U RI N G 1 9 7 2 F R E D K L AI R & A S S O C. S T U D Y. 

M O NI T O RI N G W E L L S I N S T A L L E D D U RI N G 1 9 8 3 & 1 9 8 6 G E R A G H T Y & MI L L E R. I N C. 

S T U DI E S. S & D I N DI C A T E S A W E L L C L U S T E R C O N SI S TI N G O F A S H A L L O W A N D 

A D E E P M O N J T O RI N G W E c L. 

M O Nl T O R[ N G W E L L S ! N S T A L L E D O U R I M G PI-\ A S E I RI \ T A S K 3- E ). S & D I N DI C A T E S 

A W E L L C L U S T E R C O N S J S TI N G O F A S H A L L O W A N D A D E E P M O N J T O RI N G W E L L. 

DI S P O S A L P O N D P E RI M E T E R S OI L B O RI N G E Q UI P P E D WI T H A L L U VI A L 

A O UI F E R PI E Z O M E T E R. 

W E L L S A B A N O N E 0 0 N A P R I L 2 9 A N D A P R I L 3 0, 1 9 9 7. 

- 5- T O T A L C Y A NI D E C O N C E N T R A TI O N C O N T O U R < m g/ LI 

T O T A L C Y A NI D E I S O P L E T H M A P < B A S E D O N S A M P L E S C O L L E C T E D J A N U A R Y 1 9 9 5) O R M E T C O R P O R A TI O N 

FI G U R E 

1 0 Y!fl M! I W as hi n gt o n, Pe n ns 7/v a ni " 1 5 5 0 1 1------------- H A N NI B A L O H I O 
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O R M E T P L A N T P R O P E R 

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