^

e * s % > !* ^ — T R UNITE D

STATE S ENVIRONMENTA L

PROTECTIO N

AGENC Y REGIO N VIII 9 9 9 18t h STREE T

- SUIT E 50 0 DENVER

, COLORAD O 80202-2466 Ref : 8EPR-S R ACTIO N MEMORANDU M --ENFORCEMEN

T DATE : Jul y 19 , 199 6 3 37591 0

SUBJECT : Reques t fo r Remova l (Response ) Action s a t th e Californi a Gulc h Nationa l Prioritie s Lis t Site

, Leadville

, Colorado : ACTION MEMORANDU

M fo r PR P Finance d Remova l Action s in White s Gulch

, a portio n o f Operabl e Uni t 4 (O U 4 ) Rebecca Thomas

, 8EPR- S FROM: T O : Ma x H

. Dodson

, Assistan t Regiona l Administrato r Offic e o f Ecosystem s Protectio n and Remediatio n Fina l NP L Sit e I D # 2 9 CERCLI S I D # COD98071793 8 Categor y o f Removal : Non-Tim e Critica l I

. Purpos e Thi s Actio n Memorandu m document s th e Agency' s decisio n t o conduc t th e Remova l (response ) Action s describe d herei n fo r White s Gulc h withi n Uppe r Californi a Gulc h (O U 4)

. Th e White s Gulc h drainag e i s an are a whic h ha s bee n contaminate d

b y the min e wast e piles

, mil l tailin g an d fluvia l tailin g materia l fro m histori c minin g an d millin g operations

.

Th e evaluatio n o f alternative s

availabl e t o addres s thi s are a ar e containe d i n th e fina l Engineerin g Evaluation/Cos t

Analysi s (EE/CA ) fo r White s Gulc h withi n Uppe r Californi a Gulch

, Operabl e Uni t 4 , Californi a Gulc h Superfun d Site

, Leadville

, Colorad o whic h i s date d Jul y 1996

. Th e EE/C A wa s prepare d b y Resurrectio n Minin g Compan y ("Resurrection")

,

Denver

, Colorad o fo r a portio n o f th e Californi a Gulc h Superfun d Sit e (Site ) withi n it s "are a o f responsibility "

a s define d b y th e Augus t 26 , 199 4 consen t decre e betwee n th e Unite d State s an d Resurrection

. T h e Remova l Action s a t th e White s Gulc h sit e ar e consisten t wit h th e overal l remedia l activitie s t o b e undertake n b y Resurrectio n a t O U 4

. A s such

, th e Remova l Actio n alternative s evaluate d in th e EE/C A ar e considere d t o represen t interim respons e actions , bu t th e remova l alternative s wil l als o be evaluate d as fina l remedia l alternative s i n th e Feasibilit y Stud y (FS ) an d Record o f Decisio n (ROD ) fo r OU4

. Th e Remova l Action s ar e no t intende d

Printed on Recycled Paper

### t

o be fina l actions , bu t ar e rathe r intended.t o contribut e t o th e efficien t performanc e

o f th e remedia l action s fo r O U 4

. ; | T h e RO D fo r O U 4 wil l ultimatel y determin e whethe r furthe r remedia l action s ar e required

. 

### Th e primar y goa l o f thes e remova l action s i s t o reduc e th e ris k t o the aquati c and terrestria l ecosystems

b y reducin g the releas e o f contaminate d

materia l int o th e environment

fro m t h e Agwal t Min e an d Wast e Roc k Pil e UCG-92 A (Printe r Girl ) whic h ar e locate d in White s Gulch

. Thes e remova l action s wil l als o reduc e th e potentia l fo r leachin g an d migratio n o f metal s 

### fro m th e min e waste s int o surfac e an d ground waters

. Remedia l actio n objective s wer e identifie d i n th e Fina l 

### Screenin g Feasibilit y Stud y fo r Remediatio n Alternative s

a t t h e Californi a Gulc h NP L Site

, Leadville

, Colorad o (SFS)

, (EPA

, 1993a)

. Consisten t wit h th e SFS

, remova l actio n objective s fo r White s Gulc h are : O Contro l win d an d wate r erosio n o f wast e roc k 

### materia l fro m th e sourc e location s O Contro l leachin g an d migratio n o f metal s fro m wast e 

### roc k int o surfac e wate r O contro l leachin g an d migratio n o f metal s fro m wast e roc k int o groundwate r Remova l alternative s

t o directl y remediat e surfac e wate r o r 

### ground wate r i n th e vicinit y o f White s Gulc h ar e beyond th e scop e o f this EE/CA

. Consisten t wit h th e Consen t Decre e an d Work Are a Managemen t Pla n (WAMP)

, Applicabl e o r Relevan t an d Appropriat e Requirement

s (ARARs

) specifi c t o surfac e wate r an d groundwate r ar e no t include d as performanc e standard s fo r evaluatio n o f this respons e action

. I I

. Californi a Gulc h Sit e - Condition s an d Backgroun d 

### T h e Californi a Gulc h Sit e wa s liste d o n th e Nationa l Prioritie s Lis t o n Septembe r 8 , 1983.

. Th e Sit e i s i n a minin g 

### are a coverin g 1 6 1/ 2 squar e mile s o f a watershe d are a tha t drain s alon g Californi a Gulc h t o th e Arkansa s River

. Startin g 

### in 1859 , th e are a wa s mine d extensivel y fo r gold

, lead

, silver

, copper , zinc , an d manganese

. Californi a Gulc h 

### collect s runof f tha t drains numerou s abandone d mine s an d " waste s fro m mining , millin g an d smelting

. Seventy-fiv e

know n 

### mill s dumpe d tailing s int o 5- 6 mile s o f drainage s an d 6 impounde d tailing s dumps surround th e Cit y o f Leadville

. Man y smelter s operate d a t variou s time s aroun d th e Cit y processin g 

### silver

, lead

, and zinc

. Heav y metal residue s ar e presen t i n muc h o f th e City

. Th e Arkansa s River whic h receive s wate rfro m

th e Californi a Gulch

, ha s bee n classifie d a s a recreationa l resource , an d i s used heavil y fo r irrigation , livestoc k watering , publi c wate r supplie s an d fisheries

. 

### Approximatel y 4,00 0 liv e i n nearb y Leadvill e an d Lake County

. (Se e Sit e Locatio n Ma p - Figur e 1 ) III

. Condition s an d Backgroun d 

### T h e Agwal t Mine sit e i s locate d in White s Gulch

, approximatel

y 250 0 fee t upstrea m o f it s confluenc e wit h Californi a Gulch

. 

### Thi s min e i s situate d alon g th e lowe r west facin g slope s o f Breec e Hil l betwee n th e Pilo t an d Westo n faults an d is •<- ! include d i n O U 4 fo r th e Site

. OU- 4 i s define d a s th e are a hydrologicall y draine d b y Californi a Gulc h fro m immediatel y upstrea m o f th e Yak Porta l t o th e headwater s o f th e gulch

. Prominen t feature s a t th e Agwal t Min e sit e includ e a wast e 

### roc k pil e coverin g an are a o f approximatel y 1. 4 acre s and a collapse d min e portal

. A stea m engin e an d othe r minin g 

### remain s ar e locate d adjacen t t o th e collapse d porta l (SMI/TerraMatrix

,

1994b)

. Min e car t track s an d othe r minin g 

### remain s ar e littere d across th e to p o f th e wast e roc k pile

. Wast e roc k pil e UCG-92 A (Printe r Girl ) locate d downstrea m o f th e Agwal t min e sit e an d slightl y upstrea m o f th e confluenc e o f White s Gulc h an d Uppe r Californi a Gulch

, i s bisecte d b y th e acces s roa d t o th e site.

. Portion s o f wast e roc k pil e UCG-92 A

ar e locate d withi n th e strea m channel

. 

### T h e genera l location s o f th e Agwal t Min e sit e an d Wast e roc k pil e UCG-92 A (Printe r Girl ) ar e shown

, o n Figur e 2 (Attached)

. Surfac e wate r dat a indicat e tha t th e wast e roc k pile s continu e t o contribut e t o surfac e wate r contaminatio n

(acidi c p H 

### levels ; elevate d metal s loadings ) i n Uppe r Californi a Gulch

. Fiel d observation s

b y Resurrectio n

indicat e tha t wate r 

### discharge s fro m th e to e o f th e Agwal t wast e roc k pile

. Sectio n 2.3.3

. o f th e EE/C A discusse s wate r qualit y dat a fo r 

### sample s collecte d in th e vicinit y o f thes e areas

. B

. Othe r Action s t o Dat e None

. C

. Stat e an d Loca l Authorities Role s 

### O Th e Draf t EE/C A wa s issue d fo r publi c commen t an d a publi c hearin g was hel d t o discus s thi s Remova l Action

. EPA

, CDPHE

, Lak e Count y an d ASARC O commente d o n th e Draf t EE/CA

. Resurrectio n

### responde d t o thos e comment s b y lette r date d Jul y 8 , 1996

. N o substantiv e comment s wer e receive d fro m 

### the Publi c at the hearings

. O Cultura l Resources Concern : Foothill s Engineerin

g Consultants

, Inc

. (FEC ) conducte d a cultura l 

### resourc e investigatio n

a t Th e Agwal t Tunnel

. sit e 5LK85 1 o n Jul y 1 1 an d 12, 1994

. The surve y wa s 

### conducte d fo r Resurrectio n

Minin g Compan y i n Operabl e Unit 4 (OU4)

, Californi a Gulc h Superfun d 

### Site

, Lak e County

, Colorado

. FE C recommend s tha t 

### t h e Agwal t Tunnel

, sit e 5LK851

, b e considere d eligibl e fo r nominatio n t o th e Nationa l Registr y o f Histori c Place s (NHRP ) unde r criterio n D

. FE C als o recommend s tha t the sit e b e considere d a 

### contributin g elemen t t o th e Leadvill e Minin g Distric t (5LK856)

. Accordin g t o th e FE C investigation , Sit e 5LK85 1 doe s no t mee t th e 

### necessar y criterio n fo r a contributin g elemen t t o t h e existin g Nationa l Histori c Landmar k District

. I n Septembe r an d Octobe r o f 1995 , personne l fro m P-II I Associates

, Inc.

, conducte d a cultura l
resource inventor y o f a wast e roc k pil e (designate d

a s Pil e UCG-92A ) a t th e Printe r Gir l Min e locate d in White s Gulch

, an d several potentia l access roa d corridor s in th e Californi a Gulc h are a o f Lak e County

, Colorado

. A s a resul t o f th e cultura l


### resourc e investigations ,

on e histori c sit e an d on e histori c isolate d fin d wer e locate d an d documented

. By definition

, th e isolate d fin d i s no t eligibl e fo r inclusio n i n th e NRHP

. Likewise

, th e sit e i s als o considere d neithe r individuall y eligibl e fo r th e NRH P no r as a contributin g elemen t o f th e propose d Leadvill e Minin g Distric t (5LK856)

. 

### Onc e a fina l determinatio n

o f eligibilit y has bee n made

, a n assessmen t o f effec t mus t b e performe d fo r t h e respons e action s considere d fo r th e Agwal t Mine

, sit e 5LK85 1 an d wast e roc k pil e UCG-92 A O Cit y o f Leadville : EP A has notifie d th e citizen s o f Leadvill e b y th e releas e o f an d acceptanc e o f publi c commen t o n th e Engineerin g Evaluation/Cos t

Analysi s 

### (EE/CA ) concernin g thi s remova l action

. Unde r CERCL A § 12 1 (e)

, n o Stat e o r loca l permit s ar e .- , require d fo r th e excavatio n sinc e thi s i s a n on-sit e 

### actio n conducte d pursuan t t o CERCL A Section s 10 4 ari d 122

.

### I V

. Threat s t o Publi c Healt h o r Welfar e o r th e Environment

, an d Statutor y an d Regulator y Authoritie s A Baselin e Aquati c Ecolog y Ris k Assessmen t (BAERA)

,

Californi a Gulch

, Leadville

, Colorad o (Ro y F

. Weston

, Inc

. [WESTON]

, 1994 ) identifie s th e Site-wid e impac t o f min e wast e contaminatio n o n th e aquatic ecosystem s a t th e Site

. Th e 

### BAER A provide s a conceptua l mode l o f Site-wid e exposur e fo r aquati c receptors

. 

### Seep s an d min e porta l discharge s contai n lo w p H an d elevate d 

### metals

. Min e wast e contain s lead

, arseni c an d zinc

. Leachat e i s highl y acidi c an d has elevate d level s o f zinc , cadmium

, , iron , lea d an d sulfate

. Thi s leachat e i s simila r t o see p ;

- 

### wate r collecte d at th e to e o f wast e roc k pil e an d downstream

1 i n Californi a Gulch

. 

### V

. Endangermen t

Determinatio n Actua l and/o r threatene d release s o f hazardous substance s 

### fro m th e Agwal t Min e sit e an d wast e roc k pil e UCG-92 A (Printe r Girl)

, i f no t addresse d b y implementin g th e remova l action s selecte d i n thi s Actio n Memorandum

,

ma y presen t an endangermen t t o publi c health

, o r welfare

, o r th e environment

. 

### V I

. Propose d Actions/Performanc e

Standards/Estimate d

Cost s A

. Propose d Action s T h e propose d respons e actio n fo r th e Agwal t Min e sit e i s identifie d in th e EE/C A a s Alternativ e A

. (Drawin g No

. 3 , EE/CA )



### 1

. Diversio n

of surfac e wate r flo w an d porta l flo w ..!.'.' /

aroun d the wast e roc k b y the constructio n

o f new concret e line d channel s t o preven t run-o n t o and/o r filtratio n through th e wast e rock

. Tw o channel s woul d b e constructed

.

Diversio n

Channe l A woul d b e 

### constructe d alon g th e sout h edg e o f th e wast e roc k pil e an d woul d diver t runof f fro m th e souther n strea m channe l aroun d the min e site

. Diversio n Channe l B woul d be constructe d alon g th e nort h edg e 

### o f th e wast e roc k pil e an d woul d diver t runof f fro m the norther n strea m channe l aroun d the min e site

.

### 2

.

A porta l collectio n syste m an d pipelin e woul d be constructe d t o diver t porta l flo w t o Channe l B

. Channel s A an d B joi n belo w th e wast e roc k pil e an d discharg e through a n apro n outle t t o th e White s Gulc h strea m channel

. 

### 3

. Best Managemen t Practice s (BMPs ) woul d b e utilize d durin g al l constructio n

activitie s a t th e Agwal t : 

### Min e site

. Temporar y sedimen t contro l structures , includin g placemen t o f stra w bales

, sedimen t contro l fences

, o r smal l berm s woul d b e utilize d t o contro l 

### sedimen t runof f fro m th e site , I n addition

, dus t 

### control

, (includin g th e us e o f a wate r truck ) woul d be practice d durin g construction

. T h e propose d respons e actio n fo r wast e roc k pil e UCG-92 A (Printe r Girl ) is identifie d i n th e EE/C A a s 

### Alternativ e A

. 1

. Approximatel

y 30 0 cubi c yard s o f wast e roc k 

### fro m pil e UCG-92 A woul d b e remove d fro m th e White s Gulc h strea m channel an d place d o n th e mai n pil e t o th e nort h o f th e access road

. 

### 2

. A line d Strea m Remediatio n Channe l (SRC ) woul d b e constructe d alon g th e alignmen t o f th e existin g White s Gulc h strea m channel

, alon g th e sout h to e o f wast e roc k pil e UCG-92A

. A porta l 

### collectio n syste m an d pipelin e woul d diver t .; , porta l flo w t o th e SRC

. th e SR C woul d ^-

- discharg e through a n outle t apro n fo r energ y dissipation

, prio r t o discharg e t o th e natura l 

### White s Gulc h strea m channel

. 3

. Anothe r Channel

, designe d t o collec t runo n fro m th e are a nort h o f wast e roc k pil e UCG-92 A wil l 

### als o be constructed

. 

### 4

. Best Managemen t Practice s (BMPs ) woul d be utilize d durin g al l constructio n

activitie s a t t h e Agwal t Min e site

. Temporar y sedimen t contro l structures ,

includin g placemen t o f 

### stra w bales

, sedimen t contro l fences

, o r smal l berm s woul d be utilize d t o contro l sedimen t 

### runof f fro m th e site , I n addition

, dus t control

, (includin g th e us e o f a wate r truck ) woul d b e practice d durin g construction

.B

.

Applicable

or Relevan t and Appropriate Requirement

s (ARARs ) 

### ARARs ar e identifie d i n Appendi x F o f th e EE/CA

. The y wil l b e me t by.implementin

g th e Performanc e Standard s identifie d i n Sectio n C

. 1

. Chemica l Specifi c ARARs Chemical-specifi c

requirement

s ar e base d o n healt h o r risk-base d concentratio n

limit s o r discharg e limitation s

in environmenta l

medi a (i.e

. water , air ) fo r specifi c hazardous chemicals

. Thes e 

### ma y be used t o se t cleanu p level s fo r chemical s o f

concer n (in thi s case , metals ) in th e designate d 

### media

, o r t o se t a saf e leve l o f discharg e (e.g

. wast e wate r discharge

, takin g int o account wate r qualit y standards ) wher e a discharg e occur s a s par t
o f th e remova l activity

.
2

. Actio n Specifi c ARARs - Action-specifi c

ARARs ar e activity-base d 

### requirement s triggere d b y th e particula r remova l activitie s selected

. Regulation s

regardin g worker healt h an d safet y (i.e

. OSH A requirements ) ar e no t technicall y ARARs a s the y are no t environmenta l

or publi c healt h requirements

. I n additio n t o th e Action-Specifi c

ARARs identifie d 

### in Tabl e F.2

, RCRA Subtitle C ma y be relevan t an d appropriat e i f th e waste s fai l Toxicit y 

### Characteristi c Leachin g Procedur e (TCLP ) o r i f the y exhibi t othe r characteristic s

o f a RCR A hazardou s waste

. Portion s o f RCRA Subtitl e C tha t addres s lo w permeabilit y cove r o f characteristi c

waste s an d 

### provid e fo r th e continue d collectio n o f leachat e an d continue d runo n and runof f contro l ma y b e relevan t

. an d appropriat e t o thi s remova l action

. Fo r 

### additiona l information

,

refe r t o Tabl e F. 2 attached

. Locatio n Specifi c ARARs - Location-specifi c

ARARs ar e restriction s

place d o n th e type s o f activitie s tha t ma y occu r i n particulat e locations

. Th e locatio n o f a sit e ma y b e a n importan t characteristi c

i n determinin g it s 

### impac t o n publi c healt h an d th e environment

; thus stat e standard s ofte n establis h location-specifi c ARARs

. Thes e ARARs ma y restric t o r preclud e certai n

### remedia l action s o r ma y appl y onl y t o certai n portion s o f a site

. Example s o f location-Specifi c ARARs includ e federa l an d stat e requirement

s fo r preservatio n o f histori c landmarks

, endangere d 

### specie s an d wetland s protectio n an d floodplai n restriction s o n management o f hazardou s waste

. F o r additiona l information

,

refe r to Tabl e F. I 

### attached

. .iO 

### C

. Performanc e Standard s Th e ARARs ar e bein g me t through th e Performanc e 

### Standards

. Performanc e

Standard s shal l b e attaine d consisten t wit h ARARs an d EP A approve d remova l action

. T h e Performanc e Standard s ar e describe d below : 

### 1

. The respons e action s a s designe d and constructe d shal l includ e provision s t o ensur e tha t ther e are n o visibl e emission s (dust ) fro m th e Agwal t Min e sit e 

### o r wast e roc k pil e UCG-92 A (Printe r Girl ) durin g an d followin g constructio n

o f th e remova l action

. 

### 2

. Th e respons e action s a s designe d an d constructe d shal l includ e provision s t o ensure tha t ther e i s n o erosio n o f th e tailing s material s o r sediment s du e t o rai n or sno w melt

. 

### 3

. Th e desig n shal l contain requirement

s t o ensure tha t erosion , run-on , an d run-of f ar e prevente d an d t o ensure slop e stability

. Rain

, floo d an d sno w mel t shal l no t b e allowe d t o ru n ont o o r fro m th e tailing s area

. Al l slope s shal l b e grade d t o b e permanentl y stable

. 

### 4

. A long-ter m maintenanc e

progra m ma y b e implemented

, i f require d b y the fina l RO D for O U 4 , t o ensur e the 

### long-ter m effectivenes s

o f thi s respons e action

. D

. Projec t Schedul e T h e Projec t Schedul e wil l b e documente d in th e EPA-approve d remova l actio n Work Plans

. Th e constructio n 

### o f thi s remova l actio n shoul d b e complete d b y Octobe r 1996

. Upo n completio n o f constructio n

o f th e remova l action s an d attainmen t o f th e Performanc e Standards

, long-ter m maintenanc e

an d monitorin g wil l be initiated

, i f necessary

.E

.

Estimate d Cost s 

### A s provide d in th e fina l Engineerin g Evaluation/Cos t Analysis

, Fina l Revisio n date d Jul y 1996, th e estimate d 

### tota l cos t fo r th e propose d remova l actio n describe d fo r t h e Agwal t Min e sit e is $171,788

. Similarly

, th e tota l estimate d cost fo r wast e roc k pil e UCG-92 A (Printe r Girl ) i s $131,406

. Detail s ar e provide d Appendi x G o f th e EE/CA

. VII

. Expecte d Chang e i n th e Situatio n Shoul d Actio n B e Delaye d o r 

### N o t Take n Shoul d thi s remova l actio n b e delayed

, o r no t take n a t all

, a potentia l ris k o f exposur e t o heav y metal s containe d in th e min e waste , groundwate r an d surfac e wate r wil l continu e t o exist

. 

### VIII

. Outstandin g Polic y Issue s A Recor d o f Decisio n wil l b e issue d fo r O U 4 o f th e Sit e selectin g th e fina l remedia l actio n includin g th e Agwal t Min e sit e an d wast e roc k pil e UCG-92 A (Printe r Girl ) portion s o f 

### t h e Site

.

### I X

. Enforcemen t Resurrectio n Minin g Compan y i s th e part y tha t has agree d t o implemen t respons e action s fo r th e O U 4 portion s o f th e Site

. X

. Recommendatio n 

### Thi s decisio n document represent s th e selecte d Remova l Actio n f o r a portio n o f O U 4 o f th e Californi a Gulc h Superfun d Site

, 

### i n th e Cit y o f Leadville

, Count y o f Lake

, Stat e o f Colorado

. 

### I t wa s develope d i n accordanc e wit h CERCLA

, a s amended

, an d i s no t inconsisten t

wit h th e NCP

. Thi s decisio n i s base d o n th e Administrativ e

Record fo r th e Site

. Condition s a t th e Agwal t Min e sit e an d wast e roc k pil e UCG-92 A (Printe r Girl)

, mee t th e NC P Sectio n 300.415(b)(2 )

criteri a 

### fo r a remova l an d I recommend approva l o f th e propose d remova l action

. APPROVA L



### M a x H

. rfodso n Assistan t Regiona l Administrato r Offic e o f Ecosystem s Protectio n and Remediatio n DISAPPROVA L

M a x H

. Dodso n Assistan t Regiona l Administrato r 

### Offic e o f Ecosystem s Protectio n and Remediatio n

1

0t i 

## C

O L\O R A D O

NOT TO SCALE 

### CALIFORNIA GULCH 

### SUPERFUNb SITE

I'xtjrtl 664- O WO KESWLOC.DWG J.ttAY

liiaiim By: K.CONRATH RESURRECTIO N

MININ G COMPAN Y O N E UNITE D B«> M CtNU R 170 0 LNCOC N SmEE T OCNVER

. CCXORAD O (0101 N/A

D'ttr JUNE 1995 

### FIGURE 1 

## CALIFORNIA

GULCH SITE 

## GENERAL LOCATIONAGWAL T MIN E SIT E WHITE S GULC H WAST E ROC K PIL E 92 A

SCALE

I N FEE T 

### LEGEND
L, 

### OPERABLE

UNIT 4 Project No.: 664-OWO File: OU4-LOC.DWG Design

By: J. WEINMAN

razu n By : M. MA THIS EN RESURRECTIO N

MININ G COMPAN Y O NE UNITE D BAN K CENTE R 170 0 LINCOL N STREE T DENVER

. COLORAD O 8020 3 Scale:
r.-

sooo" Dale: April 1996 

### FIGURE 2 

## WHITES

GULCH EE/CA OPERABLE UNIT 4/AGWALT MINE SITE & WASTE ROCK PILE 92AStandard

, Requiremen t Criteria

, o r Limitatio n TABL E F. 1 POTENTIA L FEDERA L AN D STAT E LOCATION-SPECIFI

C ARAR s Citatio n Descriptio n FEDERA L Endangere d Specie s Ac t Fis h an d Wildlif e Coordinatio n Ac t Wildernes s Ac t Executiv e Order No

. 1 1 98 8 Floodplai n Managemen t Sectio n 404 , Clea n Wate r Ac t T h e Archaeologica l an d Histori c Preservatio n Ac t o f 1 97 4 Nationa l Histori c Preservatio n Ac t (NHPA ) E.G

. 1 1 59 3 Protectio n an d Enhancemen t o f th e Cultura l Environmen t T h e Archeologica l Resource s Protectio n Ac t o f 197 9 Resource Conservatio n and Recover y Ac t (RCRA)

, Subtitl e D 1 6 US C § 153 1 e t seq

. 5 0 CF R § i 20 0 an d 40 2 1 6 US C i 66 1 etseo

. 4 0 CF R f 6.30 2

1 6 US C 1311 , 1 6 US C 668 ; 50 CF R 53 , 50 CF R 2 7 4 0 CF R f 6.30 2 <b ) Appendi x A

3 3 US C 125 1 e t sea

. 4 0 CF R § i 230,23 1 3 3 CF R part s 320-330 1 6 US C 469 ; 4 0 CF R 6.30 1 {c >

1 6 US C i 47 0 e t sea

. 4 0 CF R § 6.30Kb ) 3 6 CF R i Par t 63 , Par t 65

. Par t 80 0 1 6 US C 47 0

1 6 US C 470aa-470 1 1

4 0 CF R 258.10-1 5 Provid

e protectio n fo r threatene d an d endangere d specie s an d their habitat

. Thes e standard s require protectio n o f fis h an d wildlif e in wate r resourc e developmen t programs , or actions whic h impoun d diver t or contro l or modif y an y bod y o f water

. Limit s activitie s within area s designe d a s wildernes s area s o r Nationa l Wildlif e Refug e Systems

. Pertains t o floodplai n managemen t an d constructio n an d impoundment s i n suc h areas

. Thes e standard s prohibi t discharg e o f dredge d o r fil l materia l int o water s o f th e Unite d State s withou t permit

. Establishe s procedure s t o provid e fo r preservatio n o f historica l an d archeologica l dat a whic h migh t b e destroye d throug h alteratio n o f terrai n a s a resul t o f a federa l constructio n projec t o r a federall y license d activit y program

. Expand s historic preservatio n programs ; applie s t o resource s eligibl e fo r listing o n t h e Natura l Registe r fo r Histori c Places

. Federa l agencie s directe d t o institut e procedure s t o ensur e program s contribut e t o th e preservatio n an d enhancemen t o f non-federall y owne d historic resources

. Consultatio n wit h th e Advisor y Counci l o n Histori c Preservatio n required

. Require s a permi t for an y excavatio n or remova l o f archeologica l resource s fro m publi c land s o r India n lands

. Facilitie s wher e treatment , storage , o r disposa l o f soli d wast e wil l be conducte d
mus t mee t certain locatio n standards

. Thes e includ e locatio n restriction s o n proximit y t o airports , floodplains

, wetlands

, faul t areas, seismi c impac t zones , an d unstabl e areas

.TABL E F. 1 POTENTIA L FEDERA L AN D STAT E LOCATION-SPECIFI

C ARARs Standard

. Requiremen t Criteria

, o r Limitatio n Citatio n Descriptio n STAT E O F COLORAD O Nongame

, Endangere d or Threatene d Specie s Ac t Colorad o Registe r o f Histori c Places Colorad o Historical

, Prehistorical

, and Archaeologica l Resource s Act Colorad o Specie s o f Specia l Concer n an d Specie s o f Undetermine d Statu s Colorad o Natura l Areas
Stat e Soli d Wast e Disposa l Site s a n d Facilitie s Act

, Colorad o Revised Statutes

, Titl e 30 , Articl e 20 , Section s 101-11 8 CRS

§ i 33-2-10 1 t o 10 8 CR S i i 24-80.1-10 1 t o 10 8 CR S § § 24-80-40 1 t o 41 0 130 1 t o 1305 Colorad o Divisio n o f Wildlif e Administrativ e Directive E- 1 , 1985 , modifie d Colorad o Revised Statutes

, Titl e 33 , Articl e 33 , Sec

. 1 0 4

6 CC R 1007- 2
6CC R 1007-2
, Part i Thes e standard s provid e fo r th e regulatio n o f nongame wildlif e an d threatene d an c endangere d species

. Authorize s Stat e Historica l Societ y t o nominat e propertie s fo r inclusio n o n Stat e Register

. Concern s historical

, prehistorica l an d archaeologica l resources; applie s onl y t o area s owne d b y Stat e o r it s politica l subdivision

. Protect s animal s liste d o n th e Colorad o Divisio n o f Wildlif e generate d list

. Coordinatio n wit h the Divisio n o f wildlif e i s strongl y urge d i f anima l specie s are t o b e impacted

. T h e Colorad o Natura l Areas Progra m maintain s a lis t o f plan t specie s o f specia l

concer n fo r th e State

. Althoug h no t protecte d b y Stat e statue , coordinatio n wit h Divisio n o f Park s an d Outdoo r Recreatio n i s recommende d i f activitie s wil l impac t liste d species

. Establishe s regulation s fo r solid wast e managemen t facilities

, includin g locatio n standards

. Establishe s broa d citin g criteri a an d sit e evaluatio n procedures fo r individua l storag e an d disposa l unit s (i.e.

, impoundments

, landfills

, etc. )TABL E F. 2 POTENTIA L FEDERA L AN D STAT E ACTION-SPECIFI

C ARAR s Standard

. Requiremen t Criteria

, o r Limitatio n Citatio n Descriptio n FEDERA L Clea n Air Ac t Soli d Wast e Disposa l Ac t as amended b y th e Resourc e Conservatio n and Recover y Act o f 197 6 (RCRA ) Hazardou s Material s Transportatio n Ac t Occupationa l Healt h an d Safet y Act Federa l Min e Safet y an d Healt h Act 42 US C i 7401-7642 4 0 CF R 6 0 42 US C ! 6901-698 7 4 0 CF R 25 7

49 US C § 1801-181 3 4 9 CF R 107
, 171-17 7 29 US C i 651-678
3 0 US C ! 800-96 2 Establishe s

emissio n standard s fo r certain categorie s o f industria l stationar y sources

. Establishe s criteri a fo r determinin g whic h soli d wast e disposa l facilitie s an d practices pos e a reasonabl e probabilit y o f advers e effect s o n health

. Regulate s transportatio n o f hazardou s materials

. Regulate s worker healt h an d safety

. Establishe s requirement s t o protec t worke r healt h and safet y i n and around mines

. STAT E O F COLORAD O Stat e Soli d Wast e Disposa l Site s and Facilitie s Act Colorad o Mine d Lan d Reclamatio n Act Colorad o Ai r Qualit y Contro l Ac t Colorad o Nois e Abatemen t Ac t Colorad o Regulatio n fo r th e Stat e Discharg e Permi t Syste m Regulation s o n th e Collectio n o f Aquati c Lif e 6CC

R 1007- 2 CR S 34-32- 1 0 1 t o 12 5 2CC R 407- 1 5CCR S 1001-1,3,4 , 5 , 8 , 1 0 CR S 25- 1 2- 1 0 1 t o 10 8
6.1.0 , 5CCR 1002- 2 2CC R 406-8 , Ch

. 1 3 , Articl e III

, Sec

. 131 6 Establishe s

polic y fo r licensing

, locating

, constructin g an d operatin g soli d wast e facilities

. Regulate s al l aspect s o f lan d us e fo r mining , includin g th e locatio n o f minin g operation s an d relate d reclamatio n activitie s an d othe r environmenta l an d socio

economi c impacts

. Establishe s emissions standard s fo r particulate s an d lead

. Establishe s maximu m permissibl e noise level s fo r particula r tim e period s an d us e zones

. lan d Establishe s regulation s fo r stormwate r runof f a t constructio n sites

. Requirement s governin g th e collectio n o f wildlif e fo r scientifi c purposes

.