## U

. S

. En v i r o n m e n t a l P r o t ec t

i o n Ag en c y

R e g ion 9

C le a n A i r A c t P e r m i t

C u l t u r al Re so u r ces R e p ort u n der t he N a t i o n al H i s t or ic Pr e s e r v a t i on A ct

F o ur C or n e rs Pow er Pl a nt S CR Pro j ect

1.0 I nt ro du c t i on

P u rs u a n t t o S e c t i o n 1 0 6 o f t h e N a t i o n al H is t o ric P r e se r v a t i o n A c t ( NH P A ) t h e U .S

. E n v i r o n m e n t al P r o te c t i o n

Ag e n c y ( E P A ) m u s t c o n si d e r t h e e ff e c t s o f i t s p e r m i t a c t i o n s o n p r o p e r t i e s lis t e d i n o r e li g i b l e f o r i n cl u si o n i n t h e

N a t i o n al R e g is te r o f H i s t o r i c P la c e s

. E P A R e g i o n 9 i s c u rr e n t l y r e v i ew i ng a P S D p e r m i t a pp lic a t i o n f o r t h e F o u r

C o r n e rs P o w e r P la n t ( F C PP ) o n N a v a j o N a t i o n i n F r u i t l a nd

, N ew Me x i c o

. A s s u c h

, E P A m u s t m ee t i t s o b li g a t i o n s

und e r S e c t i o n 1 0 6 f o r t h is p r o j e c t p ri o r t o iss u i ng a f i n al p e r m i t d e cis i o n

.

2.0 De s c r ip t i on of t he U n de r t a k i ng

A ri z o n a P ub lic S e r v i c e C om p a n y ( A P S ) c o

- o w n s a nd o p e ra te s t h e F C P P

. T h e F C P P i s a c o al-fir e d p o w e r p la n t

,

u t ili z i ng pu l v e ri z e d c o al- b o i l e rs, l o ca t e d o n t h e N a v a j o N a t i o n a b o u t 2 5 m il e s w e s t o f F a r m i ng t o n

, N e w M e xi c o

(s ee F i gu r e 1 )

. T h e F C P P c u rr e n t l y c o n si s t s o f t w o 7 5 0 m e g a w a t t ( M W) c o al-fi r e d e l e c t r i c s t e a m

- g e n e ra t i ng u n i t s

(EGUs)

, w i t h a t o t al ca p aci t y o f a pp r o x i m a te l y 1

, 5 0 0 M W, a nd o t h e r a n cilla r y e q u i p m e n t s u c h as c o al s t o r a g e

,

li m e h a nd li ng o p e ra t i o n s a nd d r y as h h a nd li ng o p e r a t i o n s

.

O n Augu s t 2 4

, 2 0 12

, E P A p r om u l g a t e d a s o u r c e -s p e cif i c F e d e ral I m p l e m e n t a t i o n P la n ( FI P ) r e qu iri ng t h e F C P P t o

ac h i e v e e m iss i o n r e du c t i o n s r e qu ir e d b y t h e C AA ’s b e s t a v aila b l e r e t r o f i t t e c hn o l og y (B A R T ) r e qu ir e m e n t s. 1 In a

l ette r d a te d D e c e m b e r 30

, 2 0 13

, A P S n o t ifi e d E P A t h a t as p ar t o f t h e c o m p lia n c e s t ra te g y f o r t h e B A R T FI P i t

w o u l d p e r m a n e n t l y s hu t d o w n t h r ee e xi s t i ng EGUs

– U n i t s 1

, 2

, a nd 3 b y J a nu ar y 1

, 2 0 14

. A s o f J a nu ar y 2 01 4

,

t h e F C P P n o w c o n s i s t s o f t h e t w o r e m ai n i ng 7 5 0 M W EGUs

– U n i t s 4 a nd 5

– a nd t h e e x i s t i ng a n cillar y

e qu i p m e n t

. A P S w il l f u r t h e r c o m p l y w i t h t h e r e qu ir e m e n t s o f E P A ’s B A R T F I P b y i n s t alli ng S CR s y s t e m s o n U n i t s 4

a nd 5 t o r e du c e e m iss i o n s o f n i t r o g e n o xi d e s ( NO X ) b y a pp r o x i m a t e l y 8 0 % f r o m c u rr e n t l e v e ls

. T h e i n s t all a t i o n o f

S CR t o c om p l y w i t h E P A ’s B A R T FI P i s ca u si ng a si gn ifica n t n et e m i ssi o n i n c r e as e o f s u lf u ric aci d m is t ( SA M )

,

w h ic h is t h e r e a s o n t h is p r o j e c t m u s t o b t ai n a p e r m i t fr o m E P A R e g i o n 9

. T h e i n s t alla t i o n o f S C R s y s t e m s o n

U n i t s 4 a nd 5 a r e e x p e c te d t o i m p r o v e v isi b ili t y a t 1 6 n e ar b y n a t i o n al p ar k s a nd w il d e r n e ss ar e as, s u c h as M e sa

V e r d e N a t i o n al P ark

. T h e n ew a nd af f e c t e d e m iss i o n u n i t s as s o cia t e d w i t h t h e F C P P S CR P r o j e c t ar e:

· U n i t s 4 a nd 5 w ill b e m o d if i e d b y a dd i ng n e w S CR e m i s si o n s c o n t r o ls

. S CR w ill b e a dd e d t o s ub s t a n t iall y

r e du c e NO X e m i s si o n s

. T h e S CR s y s t e m s w ill b e l o c a te d af te r e ac h E GU’s e c o n o m i z e r a nd b e f o r e t h e air

p r e h e a te r

.

· B e ca u s e t h e S C R e m iss i o n s c o n t r o ls w ill ca u s e a si gn if i ca n t n e t e m iss i o n s i n cr e a s e i n SA M e m issi o n s

, A P S

is p r o p o si ng t o i n s t all a nd o p e ra te d r y s o r b e n t i n j e c t i o n ( D SI ) s y s t e m as B A C T t o m i n i m i z e SA M

em iss i o n s

. T h e D SI s y s t e m w ill b e l o ca t e d af t e r t h e ai r p r e h e a t e r a nd j u s t b e f o r e t h e b a gh o u s e a nd w et

F G D

.

· T r u ck t ra f

fic w il l i n cr e a s e d u e t o t h e d e li v e r y o f r e a g e n t f o r t h e D SI s y s t e m r e s u l t i ng i n i n cr e as e d f ug i t i v e

e m iss i o n s f r o m p a v e d p la n t r o a d s

.

· T r u ck t ra f

fic w il l als o i n cr e a s e du e t o t h e d e l i v e r y o f u r e a p e ll e t s, 2 9 % a qu e o u s a m mo n ia, o r a nh y d r o u s

a m mo n ia f o r t h e S C R s y s t e m r e s u l t i ng i n i n cr e a s e d f u g i t i v e e m i ssi o n s fr o m p a v e d p la n t r o a d s

.

· A n ew pn e u m a t i c d r y s o r b e n t t r u c k un l o a d i ng s y s t e m a nd sil o w ill b e i n s t all e d ; a nd

· A n ew pn e u m a t i c u r e a p e ll et t r u c k un l o a d i ng s y s t e m a nd sil o m a y b e i n s t al l e d if t h is r e a g e n t o p t i o n i s

s e l e c t e d f o r t h e S CR s y s te m o r a n ew a mm o n ia t r u ck un l o a d i ng s t a t i o n a nd s t o r a g e t a n k w ill b e i n s t all e d

1 F o r m o r e i n f o r m at i on on E PA ’ s BA R T FIP

, p l e a s e s ee 7 7 F e d

. R e g. 51 6 20 (A u g. 2 4

, 2012 )

.P a g e 2 o f 4

NH P A

- F C P P S C R P r o j e c t

E P A R e g i o n 9 if e i t h e r t h e a qu e o u s o r a n h y d r o u s a m mo n i a o p t i o n i s s e l e c te d f o r t h e S CR s y s t e m

.

C o n s t r u c t i o n o f

t h e F C PP S CR P r o j e c t w ill i n v o l v e t h e u s e o f h e a vy e qu i p m e n t f o r si te p r e p ara t i o n a nd

i n s t alla t i o n o f S C R o n U n i t s 4 a nd 5 a nd f o r c o n s t r u c t i o n o f as s o cia t e d s t r u c t u r e s s u c h as si l o s f o r s t o ra g e o f t h e

s o r b e n t s a nd r e a g e n t s a nd b a gh o u s e s o n t h e sil o s f o r c o n t r o l o f PM 10 a nd PM 2 .5 e m iss i o n s

. C o n s t r u c t i o n o f t h e

S CR s y s t e m s i s e x p e c te d t o s t ar t i n m i d

- 2 0 1 5 o r e arl y 2 0 1 6 w i t h o p e ra t i o n p la nn e d b y Ju l y 2 0 18

. A l l p r o j e c tr e la te d c o n s t r u c t i o n w ill b e li m i t e d t o i ndu s t rial a r e as w i t h i n t h e F C P P f e n c e li n e i n t h e m i dd l e o f p a v e d

, d is t u r b e d ar e as o r w i t h i n e xis t i ng bu il d i ng s

. C o n s t r u c t i o n w ill b e p e r f o r m e d w i t h h e a v y e qu i p m e n t s u c h as

e ar t h

- mo v e rs

, cra n e s

, a nd t r u cks

.

3.0 A r ea of Po t e n t i al E ffec ts

T h e c o n s t r u c t i o n a nd o p e r a t i o n o f t h e F C P P S C R P r o j e c t w ill o c c u r o n l y w i t h i n t h e e xi s t i ng f o o t p ri n t o f t h e F C PP

.

A s s u c h

, t h e ar e a o f p o t e n t ial e ff e c t s ( A P E ) i n cl ud e s t h e e xi s t i ng f o o t p ri n t o f t h e F C P P p o we r p la n t as s ee n i n

F i gu r e 2

. In a dd i t i o n

, t h e F C P P S CR P r o j e c t w ill i n c r e a s e e m iss i o n s o f SA M t o t h e a t m o s ph e r e f r o m t h e F C P P

w h il e r e du ci ng e m i s si o n s o f NO X

. SA M a nd NO X e m i s s i o n s b o t h h a v e t h e p o te n t i a l t o r e du c e v isi b ili t y a nd

i n cr e as e a ci d d e p o si t i o n. A s s u c h

, w e a r e c o n si d e ri ng t h e A P E t o al s o i n cl ud e a 5 0 k m ra d i u s a r o und t h e F C P P as

s h o w n i n F i gu r e 3

. T h is ar e a e n c o m p as s e s t h e e x p e c t e d aci d d e p o si t i o n ar e a f o r t h e F C P P

.

4.0 H i s t or ic Pro pe r t ies w i t h in t he A PE

E P A w as a d v is e d b y t h e N a v aj o N a t i o n T ri b al H is t o ri c P r e s e r v a t i o n Offic e r ( T H P O ) t h a t t h e F C P P i t s e l f is e li g i b l e

f o r i n cl u s i o n i n t h e N a t i o n a l R e g is t e r o f H is t o ric P la c e s

. T h e F C P P h as b ee n i n e xi s te n c e si n c e t h e la t e 1 9 60 ’ s a nd

h as b ee n a n i n t e g ral p ar t o f t h e e c o n o m y a nd c om m u n i ty o f N a v a j o N a t i o n si n c e t h a t t i m e

.

In a dd i t i o n

, t h e ar e a i n w h i c h t h e c o n s t r u c t i o n o f t h e F C P P S CR P r o j e c t a nd as s o c ia te d i n fras t r u c t u r e

, s u c h a s t h e

u r e a s t o ra g e a nd p r o c e ssi n g facili t i e s a nd d r y s t o ra g e i n j e c t i o n sil o s

, is w i t h i n t h e bu il t

- up e n v ir o n m e n t o f t h e

p o we r p la n t

. T h e ar e a s h o w n i n F i gu r e 2 h as b e e n m e c h a n icall y e xc a v a te d a nd l e v e l e d a nd c o n t ai n s a n

e s t a b lis h e d c o m p l e x o f s t r u c t u r e s, r o a d s, p a r ki ng ar e as, a nd e l e c t rical li n e s t o t h e d e g r e e t h a t t h e a r e a n o l o ng e r

r e s e m b l e s n a t u ral c o nd i t i o n s

.

A P S c o n t rac t e d w i t h S t a t i st ical R e s e arc h

, In c

. ( S R I ), t o p e rf o r m a Class I c u l t u ral r e s o u r c e s i n v e s t i g a t i o n a nd a

Class III p e d e s t ria n s u r v e y o f t h e F C P P l e as e ar e a

. T h e s u r v e y o f t h e bu il t

- up ar e a w as p e rf o r m e d fr o m

N ov e m b e r 9 t o No v e m b e r 25

, 2 0 1 3

, du ri ng a Clas s III i n te n si v e p e d e s t ria n s u r v e y o f t h e f u ll F C P P p la n t l e a s e

.

T h is s u r v ey c o v e r e d e v e r y t h i ng t h a t is n o t o cc up i e d b y e x i s t i ng as h d is p o sal s t r u c t u r e s o r i nund a te d b y M o r g a n

L ak e

. In t h e bu il t

- up ar e as, a s y s te m a t ic s u r v e y w as c o ndu c te d w h e r e t h e g r o und s u rfac e w as v isi b l e a nd l e s s

d is t u r b e d.

S e v e ra l arc h a e o l o g ical si t e s i n t h e a r e a w e r e r e c o r d e d i n 1 9 61 a nd r e p o r te d b y S c i sc e n t i a nd G r e m i ng e r i n 19 62

.

A s p ar t o f t h e Class I c u l t u r al r e s o u rc e s r e c o r d s s e arc h

, S R I r e v i e we d p r e v i o u s ar c h a e o l o g ical r e p o r t s a nd r e c o r d s

a nd t ri e d t o l o ca t e p r e v i o u sl y d o c u m e n te d s i te s

. N o a rc h a e o l o g ical s i te s we r e r e c o r d e d i n t h e v ici n i t y o f t h e

p r o p o s e d c o n s t r u c t i o n ar e a f o r t h e S C R s a nd as s o cia t e d i n fras t r u c t u r e p ri o r t o F C P P c o n s t r u c t i o n du ri ng t h e

1 9 61 s u r v e y

, a nd n o s i te s we r e d o c u m e n t e d i n t h is a r e a du ri ng t h e 2 0 1 3 s u r v ey

.

T h e r e a r e nu m e r o u s o t h e r p r o p e r t i e s w i t h 5 0 k m ( o r p o te n t i all y w i t h i n 5 0 k m ) o f t h e F C P P t h a t a r e alr e a d y l i s te d

o n t h e N a t i o n a l R e g is t e r o f H is t o ric P la c e s

. S e e T a b l e 1

. Fu r t h e r t h e r e is t h e p o te n t ial f o r o t h e r p r o p e r t i e s t h a t

ar e e li g i b l e f o r i n cl u s i o n i n t h e N a t i o n al R e g i s te r t o b e l o ca t e d w i t h i n 5 0 k m o f t h e F C P P

. H o w e v e r

, as d isc u s s e d

b e l o w t h e p o t e n t ial e f f e c t s o n t h e s e p r o p e r t i e s, o t h e r t h a n t o t h e F C P P

, r e l a te s o n l y t o i m p ac t s o f S A M a nd NO X

e m iss i o n s o n v isi b ili t y a nd aci d d e p o s i t i o n. E P A ’s e v a l u a t i o n a pp li e s t o a n y a r e a o r p r o p e r t y w i t h i n 5 0 k m o f t h eP a g e 3 o f 4

NH P A

- F C P P S C R P r o j e c t

E P A R e g i o n 9 F C P P a nd all p r o p e r t i e s o f c u l t u ral si gn ifica n c e t h a t m a y e x i s t a r e e x p e c t e d t o i n c u r t h a t s a m e e f f e c t s

. A s s u c h

, a

d et ail e d r e v i e w o f o t h e r p o te n t iall y aff e c te d h is t o ri c p r o p e r t i e s w as n o t c o ndu c t e d.

5.0 E ffec ts on H i s t or ic Pro pe r t ies

F ou r C o r ne r s P o w e r P l an t

T h e o n s i te c o n s t r u c t i o n a n d o p e ra t i o n o f t h e F C PP S C R P r o j e c t w ill n o t d i m i n is h t h e i n te g ri t y o f t h e l o c a t i o n

, d e si gn

, s e t t i ng

, m a te rials

, w o r k m a n s h i p

, f ee li ng

, o r a ss o ci a t i o n o f t h e F C PP

. T h i s und e r t aki ng is n e c e ssa r y t o

e n s u r e t h e F C P P i s a b l e t o c o n t i nu e o p e ra t i ng i n t o t h e f u t u r e i n c om p lia n c e w i t h t h e Cl e a n A ir A c t

. W h i l e t h e

und e r t aki ng w ill r e s u l t i n a dd i t i o n al e qu i p m e n t a t t h e p la n t

, t h e s e c h a ng e s a r e e x p e c te d t o b e m i n i m a l a nd w ill

n o t c h a ng e t h e o v e rall si g n ifica n c e o f t h e F C P P t o t h e N a v aj o N a t i o n

.

V isi b i l i t y I m pa c t s on H i s t or i c P r op e r t i e s

E m iss i o n s o f S A M a nd NO X – w h ic h a r e as s o ci a te d w i t h t h e F C PP S C R P r o j e c t – h a v e t h e p o te n t ia l t o i m p ac t

v isi b ili ty i n t h e n e ar b y a r e a

. R e du c e d v isi b ili t y c o u l d a d v e rs e l y af f e c t v is u al e l e m e n t s o f n e ar b y h is t o ric

p r o p e r t i e s

. A s s u c h

, E P A e v al u a te d v isi b ili t y i m p ac t s a s s o cia t e d w i t h t h e F C P P

.

A s s t a t e d a b o v e

, o n Augu s t 24

, 2 0 1 2

, E P A p r o m u l g a t e d a s o u r c e -s p e cifi c FI P r e q u iri ng t h e F C P P t o ac h i e v e

e m iss i o n r e du c t i o n s r e qu i r e d b y t h e Cl e a n A ir A c t ’ s B A R T r e qu ir e m e n t s

. T h e i n s t alla t i o n o f S C R t o c om p l y w i t h

E P A ’s B A R T F I P

, i s ca u si ng a si gn ifica n t n e t e m iss i o n i n cr e as e o f SA M

, w h ic h is t h e r e a s o n t h is P r o j e c t m u s t

o b t ai n a p e r m i t f r o m E P A R e g i o n 9

. H o w e v e r, t h e F C P P S CR P r o j e c t i n v o l v e s t h e i n s t alla t i o n o f S C R t o r e du c e

a pp r o xi m a te l y 8 0 % o f

t h e NO X e m i s si o n s f r o m U n i t s 4 a nd 5 t o i m p r o v e v i si b ili ty a t 1 6 n e ar b y n a t i o n al p ark s a nd

w il d e r n e ss ar e as

, s u c h as Me s a V e r d e N a t i o n al P a r k

.

S o w h il e t h e F C P P S C R P r o j e c t m a y r e s u l t i n a n i n cr e a s e o f up t o 2 3 7 t o n s p e r ye a r i n SA M e m i s si o n s i t w il l a l s o

ca u s e o v e r 1 9

, 0 0 0 t p y r e d u c t i o n s i n n i t r o g e n o xi d e s e m iss i o n s

. SA M a nd NO X e m issi o n b o t h h a v e t h e p o te n t ial

t o af f e c t v isi b ili t y

. G i v e n t h e o v e ral l lar g e r e du c t i o n s i n v isi b ili t y i m p a c t i ng p o ll u t a n t s fr o m t h e F C P P S CR P r o j e c t

,

E P A e x p e c t s a n et i m p r o v e m e n t i n v isi b ili t y

.

A c i d D ep o si t i on on H i s t o r i c P r op e r t i e s

A c i d de p o s i t i on ( a l s o k n o wn a s a ci d r a i n ) ha s t he p ot e nt i a l t o a d v e rs e l y a ff e c t h i s to r i c p r o p e r t i e s

. A ci d rai n a nd

t h e d r y d e p o s i t i o n o f a ci d i c p ar t icl e s c o n t ri bu te t o t h e c o r r o si o n o f m et als (s u c h a s b r o nz e ) a nd t h e d e te r i o r a t i o n

o f p ai n t a nd s t o n e (s u c h a s m ar b l e a nd l i m e s t o n e )

. T h e s e e ff e c t s ca n si gn ifica n t l y r e du c e t h e s o ci e t al v al u e o f

bu il d i ng s, b ri dg e s, o t h e r i t e m s o f c u l t u ra l si gn ifica n c e

. A s r e qu ir e d b y t h e C l e a n A i r A c t

, E P A i m p l e m e n t s t h e A ci d

Rai n P r o g ra m

, o f

w h ic h F C P P is a p a r t

, t o r e du c e t h e c u m u la t i v e e f f e c t s o f aci d r a i n.

A s p ar t o f t h is p e r m i t a c t i o n

, E P A a l s o c o n s u l t e d w i t h t h e U .S. F is h a nd Wil d li f e S e r v i c e r e g ar d i ng e nd a ng e r e d

s p e ci e s a nd a b i o l o g ical a ss e ss m e n t ( B A ) w as p r e p a r e d. T h e B A e v al u a t e s a ci d d e p o si t i o n fr o m t h e F C P P S C R

P r o j e c t. 2 A ci d d e p o si t i o n as s o cia t e d w i t h t h e F C P P ca n o cc u r a s a r e s u l t o f e m iss i o n s o f S A M

, s u lf u r d i o xi d e

,

n i t r o g e n d i o xi d e

, s u lf u r, n i t r o g e n

, h y d r o c h l o ric a ci d

, a nd h y d r o fl u o r i c aci d. T h e B A c o n si d e r s t o t al a ci d

d e p o si t i o n f r o m all o f

t h es e e m iss i o n s a t F C P P

. H o w e v e r, si m ila r t o t h e i m p a c t s o n v isi b ili t y

, t h e F C P P S CR

P r o j e c t is e x p e c t e d t o r e s u l t i n o v e ral l d e cr e as e s i n ac i d d e p o si t i o n f o r m i ng p o ll u t a n t s ( d e c r e as e o f 1 9

, 0 0 0 t p y o f

2 T h e BA f o r t h i s a c t i on and o t h e r i n f o r m at i on r e l at i n g to E P A ’ s c on s u l tat i on w i t h t h e U SF WS i s a p a r t o f E PA ’ s

a d m i n i s t r at i v e r e c o r d f o r i t s p e r m i t d e c i s i on

.P a g e 4 o f 4

NH P A

- F C P P S C R P r o j e c t

E P A R e g i o n 9 NO X a nd a n i n cr e as e i n 2 3 7 t p y o f S A M )

. A s s u c h

, n o a d v e rs e e ff e c t s o f a ci d d e p o si t i o n a r e e x p e c t e d t o o cc u r as a

r e s u l t o f t h e F C P P S C R P r o j e c t

.

6.0 C o n c l u s i on

Bas e d o n t h e i n f o r m a t i o n r e v i e we d

, E P A is p r o p o si ng a fi nd i ng o f n o a d v e rs e e ff e c t f o r t h e F C P P S C R P r o j e c t

.T ab l e 1 – L i s t o f P r op e r t i e s on t he N a t i ona l R e g is t e r o f H i s t o r i c P l a c e s w i t h i n 5 0 k m o f F ou r C o r ne r s P o w e r P l an t

S t a te C oun ty Ci ty R e s ou r ce A dd r e ss L is t ed

N EW M E X I C O S a n Ju a n Az te c Ab ra m s, H. D

. , H o u s e 4 0 3 N

. C hu rc h S t

. 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c A m e rica n H o t e l 3 0 0 S. M ai n 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n F r u i t la nd A rc h e o l o g ical S i t e OCA

- C GP

- 5 6 Add r e ss R e s t ric t e d 1 9 78 0 2 23

N EW M E X I C O S a n Ju a n Az te c Au s t in

- M c D o n al d H o u s e 5 0 1 R i o Gra nd e 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c Az te c M ai n S t r e et H i s t o ri c D is t ri c t B o und e d b y M ai n E

. , C hu s k a S.

, all ey b e t w ee n P ark a nd M a i n W

. ,

a nd C h ac o N

. 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c Az te c M o t o r C o m p a n y B u il d i ng 3 0 1 S. M ai n 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c Az te c R u i n s A d m i n is t ra t i o n B u il d i ng

--

M u s e u m App r o xi m a te l y

. 7 5 m i

. N o f U S 5 5 0

,

o n o u t skir t s o f Az te c

, Az te c R u i n s

N a t i o n al M o n u m e n t 1 9 96 1 0 11

N EW M E X I C O S a n Ju a n Az te c Az te c R u i n s N a t i o n al M o n u m e n t 1 m i

. N o f Az te c 1 9 66 1 0 15

N EW M E X I C O S a n Ju a n Az te c Ball, D

. C

. , H o u s e 3 0 0 S a n Ju a n 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c B u il d i ng a t 2 0 2 P ar k A v e n u e 2 0 2 P ark A v e

. 1 9 85 0 2 21

NE W M E X I C O S a n Ju a n Az te c B u il d i ng a t 5 0 0 W h i te A v e n u e 5 0 0 W h i t e A v e

. 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n F ar m i ng t o n C h ris t m a s T r e e R u i n ( L A 1 1 0 9 7 ) Add r e ss R e s t ric t e d 1 9 87 0 1 21

N EW M E X I C O S a n Ju a n Az te c C hu rc h A v e nue

- L o v e r s L a n e H is t o ric

D is t ri c t B o und e d b y Ri o Gra nd e E

. , Zia S.

,

P ark W

. a nd N M h w y 5 5 0 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n F ar m i ng t o n C o t t o n w o o d D i v i d e S i t e ( L A 5 5 8 2 9 ) Add r e ss R e s t ric t e d 1 9 87 0 1 21

N EW M E X I C O S a n Ju a n Az te c D a ws

- K e y s H o u s e 4 2 1 N

. C hu rc h 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c D e n v e r a nd R i o G r a nd e We s te r n Rai l w a y

D e p o t 3 1 4 R i o Gra nd e 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n F ar m i ng t o n Eas t S i d e Ri n c o n S i te Add r e ss R e s t ric t e d 1 9 8 5 1 2 15

N EW M E X I C O S a n Ju a n Az te c E ng l e m an

- T h o m as B u il d i ng 2 0 0 S. M ai n 1 9 85 0 2 21

N EW M E X I CO S a n Ju a n F ar m i ng t o n F ar m i ng t o n H i s t o r i c D o w n t o w n

C o m m e rcial D is t ri c t App r o x

. 8 b lks

, a l o ng M ai n S t

. a nd

Br o a d w a y

, f r o m Aubu r n A v e

. t o

M ill e r A v e

. 2 0 02 1 2 20T ab l e 1 – L i s t o f P r op e r t i e s on t he N a t i ona l R e g is t e r o f H i s t o r i c P l a c e s w i t h i n 5 0 k m o f F ou r C o r ne r s P o w e r P l an t

S t a te C oun ty Ci ty R e s ou r ce A dd r e ss L is t ed

N EW M E X I C O S a n Ju a n F ar m i ng t o n Gall e g o s Was h A r c h e o l o g i c al D is t r i c t Add r e ss R e s t ric t e d 1 9 75 1 1 20

N EW M E X I C O S a n Ju a n F ar m i ng t o n H a d l o ck ' s C r o w Ca n y o n N o

. 1 ( L A 5 5 8 3 0 ) Add r e ss R e s t ric t e d 1 9 87 0 1 21

N EW M E X I C O S a n Ju a n Bl o o m f i e l d H alf w a y H o u s e A r c h e o l o g i c al S i te Add r e ss R e s t ric t e d 1 9 80 1 0 10

N EW M E X I C O S a n Ju a n F ar m i ng t o n J a qu e z S i te R u i n Add r e ss R e s t ric t e d 1 9 84 1 2 10

NE W M E X I C O S a n Ju a n Az te c L o we r An i m as D i t c h L o we r An i m as D i t c h fr o m C hu rc h

A v e

. t o L o v e r s L a n e H is t o r i c D i s t ric t 1 9 87 0 3 19

N EW M E X I C O S a n Ju a n Az te c M c C o y

, H ar v ey

, H o u s e 7 2 5 P i o n e e r 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c M c C oy

- M a dd o x H o u s e N W c o r n e r o f M a dd o x a nd N E

Az te c B l v d. 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n Az te c M cG e e H o u s e 5 0 1 S a b e n a S t

. 1 9 85 0 2 21

N EW M E X I C O S a n Ju a n L a P l a t a M o rris ' N o

. 41 A r c h e o l o g i c al D is t r i c t Add r e ss R e s t ric t e d 1 9 79 0 5 17

N EW M E X I C O S a n Ju a n L a P l a t a Po nd

, F l o r e n c e a nd J o hn R

. , H o u s e 1 8 75 N M 1 7 0 2 0 13 0 9 25

N EW M E X I C O S a n Ju a n F ar m i ng t o n P ri et a M e sa S i t e ( L A 1 1 251 ) Add r e ss R e s t ric t e d 1 9 87 0 1 21

N EW M E X I C O S a n Ju a n F ar m i ng t o n S al mo n R u i n Add r e ss R e s t ric t e d 1 9 70 0 9 04

N EW M E X I C O S a n Ju a n Sh i p r o ck S a n Ju a n Ri v e r B ri dg e a t Sh i p r o ck U S 6 6 6 o v e r S a n Ju a n R

. 1 9 97 0 7 15

N EW M E X I C O S a n Ju a n F ar m i ng t o n S i mo n C a n y o n ( L A 5 0 4 7 ) Add r e ss R e s t ric t e d 1 9 87 0 1 21

N EW M E X I C O S a n Ju a n F r u i t la nd S i te N o

. OCA

- C GP

- 54

- 1 Add r e ss R e s t ric t e d 1 9 78 0 4 19

N EW M E X I C O S a n Ju a n F r u i t la nd S i te OCA

- C GP

- 6 0 5 Add r e ss R e s t ric t e d 1 9 78 0 2 17

NE W M E X I C O S a n Ju a n F ar m i ng t o n S t ar R o ck R e f ug e ( L A 5 5 8 38 ) Add r e ss R e s t ric t e d 1 9 87 0 1 21

N EW M E X I C O S a n Ju a n Bl o o m f i e l d Tw i n Ang e ls A r c h e o l o g ical S i te Add r e ss R e s t ric t e d 1 9 80 1 0 10

CO L OR A D O M o n t e zu m a P l e asa n t

Vi ew L o w r y R u i n 30 m i

. N W o f C o r te z v ia U

. S. 1 6 0 1 9 66 1 0 15

CO L OR A D O M o n t e zu m a C o r te z M i t c h e l l Sp ri ng s A rc h e o l o g i cal S i te Add r e ss R e s t ric t e d 2 0 01 1 1 09

CO L OR A D O M o n t e zu m a C o r te z M ud Sp ri ng s P u e b l o Add r e ss R e s t ric t e d 1 9 82 1 0 29

CO L OR A D O M o n t e zu m a C o r te z R o y ' s R u i n Add r e ss R e s t ric t e d 1 9 92 0 1 31

CO L OR A D O M o n t e zu m a C o r te z S a nd Ca n y o n A rc h a e o l o g i c al D is t r i c t Add r e ss R e s t ric t e d 2 0 05 0 3 15T ab l e 1 – L i s t o f P r op e r t i e s on t he N a t i ona l R e g is t e r o f H i s t o r i c P l a c e s w i t h i n 5 0 k m o f F ou r C o r ne r s P o w e r P l an t

S t a te C oun ty Ci ty R e s ou r ce A dd r e ss L is t ed

CO L OR A D O M o n t e zu m a Do l o r e s S o u t h e r n H o te l 1 0 1 S. F if t h S t

. 1 9 89 0 2 23

CO L OR A D O M o n t e zu m a C o r te z Wallac e R u i n Add r e ss R e s t ric t e d 2 0 05 0 3 24

CO L OR A D O M o n t e zu m a C o r te z Y u cca H o u s e N a t i o n al M o n u m e n t 12 m i

. S o f C o r t e z v i a U .S. 6 66 1 9 66 1 0 15Fig u re 1 Lo c atio n o f F o ur Corne r s P o w e r Pl antU n i t 4 U n i t 5 S t a c k 4 & 5

D S I S i lo

U r ea

F a c il i t i es S CR S CR

0 2 5 0 5 00 1 25

F e et ! ( P oi n t S o u r ce

R o a d S ou r ce

F en ce ! ( ! (

! ( F C P P Le a se

!

!

U r e a F ac il i t i es D S I S ilo

S t a ck s 4 & 5 I n s et N ot t o S c a le



# [

L oc a ti on o f P r o p o s ed S C Rs

a n d A s so c i a t ed F a c i li ti e s a t t he F C PP