buckskin mining company 12/02/2012 ambient air …deq.wyoming.gov/media/attachments/air...

Buckskin Mining Company

12/02/2012

Ambient Air Exceedance

Documentation

12/02/2012

AIR QUALITY ALERT MESSAGENATIONAL WEATHER SERVICE RAPID CITY SD325 AM MST SUN DEC 2 2012

...BLOWING DUST HEALTH ALERT IN EFFECT FOR THE ENTIRE POWDER RIVERBASEST OF NORTHEASTERN WYOMING FROM 1000 AM MST THIS MORNING UNTIL800 PM MST THIS EVENING...

SOUTHWESTERLY WINDS WILL INCREASE THIS MORNING ACROSS CAMPBELLCOUNTY. SUSTAINED WINDS OF 25 TO 35 MPH...WITH GUSTS TO NEAR 50MPH...ARE EXPECTED FROM LATE THIS MORNING THROUGH EARLY THISEVENING.

THE WYOMING AIR QUALITY DIVISION RECOMMENDS THE ELDERLY...YOUNGCHILDREN...AND INDFVIDUALS WITH RESPIRATORY PROBLEMS AVOIDEXCESSIVEPHYSICAL EXERTION AND MINIMIZE OUTDOOR ACTIVITIES DURING THIS TIME.ALTHOUGH THESE PEOPLE ARE MOST SUSCEPTIBLE TO HEALTH IMPACTS...THE

AIR QUALITY DIVISION ALSO ADVISES THAT EVERYONE SHOULD AVOIDPROLONGED EXPOSURE TO THE POOR AIR QUALITY CONDITIONS.

:)

Tanner B. ShattoDistrict 3 EngineerWyoming Department of Environmental QualityAir Quality DivisionDirect: (307)675-5626Office: (307)673-9337 >

Fax: (307)672-2213tanner. shatto(%wyo_aoy

12/11/2012

1

Landon.Smith

From: Landon.SmithSent: Tuesday, December 11, 2012 11:34 AMTo: Tanner Shatto ([email protected])Cc: Kirk Billings ([email protected]); Greg Passini ([email protected]);

Rick.Comer; Matt.Young; Conan.MullaneySubject: Buckskin Mine December 2, 2012 PM 10 Exceedance

TrackingTracking: Recipient Read

Tanner Shatto ([email protected])

Kirk Billings ([email protected])

Greg Passini ([email protected])

Rick.Comer Read: 12/11/2012 12:06 PM

Matt.Young Read: 12/11/2012 1:59 PM

Conan.Mullaney Read: 12/11/2012 11:34 AM

Mr. Shatto,

On December, 2nd 2012 Buckskin Mine exceeded the 24 hour particulate matter (PM10) concentration on the North TEOM. Preliminary data shows a concentration of 167.8 µg/m3 for the before listed date. Buckskin is requesting that this data be flagged due to exceptionally high winds that day. Buckskin is currently gathering data, and will send a report in a timely manner.

If you have any questions please do not hesitate to contact myself or Greg Passini ([email protected]).

Thank you

Landon A. Smith Environmental Coordinator BUCKSKIN MINING COMPANY PO Box 3027, Gillette, WY 82716 Office: (307) 686‐5404 Fax: (307)‐686‐5445

12/21/2012

Decembe

Cara KeslaWyomingAir Qualit112 WestCheyenne RE: RequeNatural HBuckskin Dear Cara

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Sincerely,

Landon SmEnvironmLandon.SmPhone: (3 cc: Greg Pa

r 21, 2012

ar g Departmenty Division 25th Street

e, WY 82002

est for use ofHigh Wind and

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assini, Tanner S

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ANY 7

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uckskin Minere as high ain an exceed

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ming from aninds were po

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onitoring Equ

uckskin Minalled the Noong with amreal time w, a TEOM Ac

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mary

ning Companas 41mph fordance of theTEOM show

ations recordas 699.26 µgncentration time frame wn average azossible that

rmation

r 2, the avero 63.3 mph ond 3:00 PM,.3 mph. Five

wind speed oresult of excee attached

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ning Companorth and the

mbient air moind speed, w

ction Plan waail notificatiot IML. With e water truc


ny underwenr the 24 hou

e 24 hour airws the majorded from 11g/m3. The higof 980.8 µg

with an averimuth of 200day, and to

rage wind spout of the so, averaging 3

e year historof 10.87 mphceptionally h tables and c

ny has impleWest TEOM

onitoring, a wwind directioas created aon is sent tothese notific

cks, lowering

MINING

PO BOX 3027 ~ GILL

nt a high winur period witr particulate r contributor:00 AM untigh concentr/m3. Wind sage wind sp0 degrees. Otake precau

peed for the uth. Highest

39.37 mph. Tic data provh. This informhigh winds ocharts at the

mented a reMS, based on

weather staton, temperatnd impleme the superincations, a sug backfills, or


nd event on th gusts up tconcentrati

r to exceedinil 3:00 PM. Tration for thespeed coincidpeed of 39.37Operations wutions accord

24 hour pert wind speedThe highest ided by the mation suppon Decembee back of thi

eal time contn their geogrtion was plature humidit

ented. Whenntendents, euitable respor shutting do

ANY 7

December 2to 63.3 mph.ion of Bucksng the 24 hoThe average e day was alded with the7 mph and a

were notifiedding to our T

riod was 25.ds were recogust was alsNorth TEOM

ports that Bur 2, 2012. Fos document

tinuous dataraphical placaced by the Nty, and solar

never a bencngineers, m

onse is enactown product

2, 2012. Sust. This event kin’s north T

our standardconcentratiso reached e before listea high gust od at 8:47 AMTEOM action

74 mph, witorded betweso recorded

M’s MET statuckskin’s or additionat.

a monitoringcement at thNorth TEOMr radiation. Wchmark is reaine manageted that coution.

tained

TEOM. d was on during ed

of 63.3 M that n plan.

th een the during

tion

l

g he

M and With ached r and ld

North TE

Ohourly cograduallyTEOM shwinds. Itsdecrease

Operatio

Bmining awas sentto these cautionin3.4.3 catand movtruck to tconcentrrecordedaction pladded. Bwere schwere recand prodmonitorewere beiexceptiothe back

OM (Downw

On Decembeoncentrationy, until the fihowed the sas concentrat

ed to a final 2

ons Reaction

MC has instctivities dur from the TEalerts, a ‘Blo

ng that high egory 3 of thed all backfithat run. Coration level od at 63.3 mpan advises t

BMC usually heduled to b

orded from duction was ed. Superinteng suppressnally high wof this pack

BUCKBU

wind) and W

r 2, the down at 11:00 AMinal 24 hour ame responstion peaked 24 hour con

ary Control

ated a TEOMing periods oEOM at 10:0owing dust hwinds were he Natural Ell operationncentrationsof 27.7 and 3h which elevo use any mbegins luncegin at 10:310:00am – 2at a minimuendents doc

sed by the 2 inds, Bucksk

ket can provi


West TEOM (U

wnwind NortM of 980.8 µconcentrati

se in terms oat 10:00 AMcentration o

Measures

M Action Plaof high conc

00 am, followhealth alert’

in the forecEvents Actions to the lows at this time34.7 µg/m3 rvated the hoeans to conthes at 11:000am and las2:00am, the m. BMC’s ac

cumented thwater truck

kin would hade visual ref

MINING

PO BOX 3027 ~ GILL

Upwind)

h TEOM Moµg/m3 at whion level wasof times of in

M with a readof 25.3 µg/m

n that providcentrations. Owed by a Hig

email was scast for the dn Plan for thest bench, be, 8:00am-9respectivelyourly concentrol dust. An

0am. With thst through 1:

time at whiction plan rehat dust leves, short hau

ave remainedference.


onitoring locaich time cons reached atncreased coding of 130.5

m3.

des structurOn Decemb

gh 1 hour conent to the pday. As suchhe Coal Minebackfill 3, an:41am were. At 9:42am

ntration to 8n additional he condition:00pm. The hich operatioequires that els stemmingls and lowerd under the

ANY 7

ation recordncentration t 170 µg/m3.ncentration 5 µg/m3 and

re for tempoer 2, 2012 ancentration it superinte, superinten

es of the Powd assigned a

e still at an acthe highest 78 µg/m3. A20,000 gal w

ns as they wehighest concns lunches wdust levels i

g from operar backfills, an150 µg/m3

ded a peak inlevels began. The Upwinin response

d gradually

orary alterat high wind aat 10:00 amndents at 8:

ndents referrwder River Ba 30,000gal wcceptable wind gust w

At this time, water truck were, 30min lucentration lewere taking in the pit beations in thend without tlimit. Picture

n n to fall d West

e to the

ion of alert

m. Prior 47am red to

Basin water

was BMC’s was unches evels place

e pit the es in

Timeline

0 0 0 1

1 1 1 1

Photos o

C

Best Ava

-

-

-

- - -

-

-

-

of the Even

5:30- Day Sh8:47- Blowin

SuperAssign

9:42- Highes20,00

0:00- High WHigh C

0:30- Early L1:00- Highes4:00- Last 1

24 ho5:00- 1 hour

f the Event

ontained at

ilable Contro

Areas whafter topsDuring threduce duAt the timconstructBuckskin Long termPads in frthat accusource of When posreplacemTopsoil Cowork areaAll of Bucmagnesiu

BUCKBU

t

hift Begins ng Dust Healrintendents mned a 30,000st Recorded 0gal water t

Wind Alert frConcentratioLunches Starst Concentrahour Conceur concentrar Concentrat

the back of

ol Measures

ere topsoil hsoil replaceme operation

ust emissionme of the eve

ed has no final

m out-of-pit oont of truck mulates on tfugitive dus

ssible, Bucksent concurreontractors, aa. kskin’s perm

um chloride a


lth Alert Advmoved to on0gal water trWind Gust:

truck added-rom TEOM son Alert fromrted ation Recordntration leveation level ation Levels b

this docume

s

has been repment

of topsoil sts.

ent, all topso

graded backoverburden dumps are

the pads duest. skin schedulently to minand Scoria C

manent roadannually to p

MINING

PO BOX 3027 ~ GILL

visory from Ane low backfruck to BF3 R63.3mph

-operated foent to appro

m TEOM 878

ded 980.8 µgel over 150 µ

alert sent frobelow 150 µg

entation.

placed are ri

tripping, the

oil operation

kfill larger thand topsoil cleaned, tree to spillage

es topsoil reimize open

Contractors a

s and areas prevent dust


AQD sent tofill, backfill 3Run-operate

or the rest ofopriate BMC8.8 µg/m3

g/m3 during µg/m3

om TEOM at g/m3 limit at

pped and se

e active oper

ns were com

han 300 contpiles are se

eated, and me from being

emoval, gradareas

are required

around facilt.

ANY 7

o pit superint3 ed for the re

f shift C Staff.

the time of

153 µg/m3 t 114.7 µg/m

eeded as soo

ration is freq

mplete, and w

tiguous acreeded.

maintained to pulverized a

ding backfill,

to apply wa

lities are tre

tendents

est of shift

limited prod

m3

on as its prac

quently wate

windrows we

es

o prevent mand a poten

, and topsoil

ater around

ated with

duction

ctical

ered to

ere

aterial tial

their

-

-

-

Historica

Obe provid

General

C

News Ac

From: Tanne District 3 E Wyoming D

Buckskin’20,000 toAs a preveRoad alsoStilling shoperation

l Data for th

On electronicded upon re

Data from th

ontained at

counts of th

er B. Shatto ngineer

Department of Env

...BLOWBASIN OF

SOUTHWCOUNMPH.

THE WYCHILDRENPHYSICAALTHOU

AIR QPR

BUCKBU

s operationao 30,000 galloentative me

o receive maeds, bag hou

ns.

he TEOM Site

c file with thquest by oth

he Event

the back of

e Event

vironmental Quali

NAT

WING DUST HNORTHEASTE

WESTERLY WTY. SUSTAINE...ARE EXPECT

YOMING AIR QN...AND INDIVAL EXERTION AUGH THESE PE

QUALITY DIVROLONGED E


al areas are ons. asure, Bucksgnesium chluses, and pa

es

e WDEQ in ther means a

this docume

ty AIR QUAL

TIONAL WEAT325 AM M

EALTH ALERTERN WYOMIN

800 PM M

WINDS WILL INED WINDS OFTED FROM LA

QUALITY DIVIVIDUALS WITAND MINIMIZ

EOPLE ARE MOISION ALSO AXPOSURE TO

MINING

PO BOX 3027 ~ GILL

watered con

skin ensuresloride treatmassive enclos

the quarterlys well.

entation in t

LITY ALERT MTHER SERVICEMST SUN DEC

T IN EFFECT FONG FROM 100MST THIS EVE

NCREASE THISF 25 TO 35 MPATE THIS MOR

EVENING.

ISION RECOMH RESPIRATOZE OUTDOOROST SUSCEPT

ADVISES THAT THE POOR A


ntinually by

s that nearbyment. sure control

y monitoring

the form of t

ESSAGE E RAPID CITY SC 2 2012

OR THE ENTIR00 AM MST TENING...

S MORNING APH...WITH GURNING THROU

MMENDS THE ORY PROBLEMR ACTIVITIES DTIBLE TO HEAT EVERYONE SAIR QUALITY C

ANY 7

water trucks

y Collins Roa

systems are

g reports. Th

tables and g

SD

RE POWDER RHIS MORNIN

ACROSS CAMPUSTS TO NEAUGH EARLY T

ELDERLY...YOMS AVOID EXCDURING THISLTH IMPACTSSHOULD AVOCONDITIONS.

s ranging fro

ad and McGe

e used in pla

his informat

graphs.

RIVER G UNTIL

PBELL R 50

THIS

OUNG CESSIVE TIME. S...THE

OID

om

ee

ant

ion can

Date/Tim

12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11: 12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11:

5yr Wind SpeTable 1: Win

me Wind Speed (m/s)

:00 AM 3:00 AM 2.7:00 AM 3:00 AM 3:00 AM 2.3:00 AM 3.5:00 AM 2.1:00 AM 2.6:00 AM 2.8:00 AM 1.8:00 AM 2:00 AM 1.9:00 PM 1.4:00 PM 2.2:00 PM 3.2:00 PM 4.2:00 PM 2.6:00 PM 6.1:00 PM 7.3:00 PM 4.8:00 PM 5.7:00 PM 4.2:00 PM 3.9:00 PM 5.7eed Averagend speed, Wind gu

BUCKBU

Buc

Wind Speed (mi/hr)

WindDirect

(°)

6.716.046.716.715.147.834.705.826.264.034.474.253.134.927.169.405.82

13.6516.3310.7412.75

9.408.72

12.7510.87

ust speeds, hourly


kskin M12-

d tion Precip

(in)

200 0179 0183 0209 0233 0350 0166 0163 0167 0150 0162 0177 0182 0265 0268 0235 0245 0230 0227 0200 0203 0202 0199 0205 0

N

y PM10 concentatio

MINING

PO BOX 3027 ~ GILL

Mine No-01-201

Gust (m/s)

Gust (mi/Hr

6.2 135.9 134.5 104.6 105.2 115.5 124.5 103.8 84.3 93.6 83.4 7

3 63.4 74.1 95.9 135.7 125.4 129.3 20

10.5 237.7 178.2 18

8 178.1 188.1 18

Table 1North TEOM

1-Dec-12

ons, and 24-hour P


orth TEO12

r)Time of

Gust

HPM

(µ

.9 11:05 PM

.2 12:15 AM

.1 01:32 AM

.3 02:42 AM

.6 03:57 AM

.3 04:53 AM

.1 05:00 AM

.5 06:36 AM

.6 07:53 AM

.1 08:34 AM

.6 09:48 AM

.7 10:14 AM

.6 11:36 AM

.2 12:12 PM

.2 01:50 PM

.8 02:21 PM

.1 03:00 PM

.8 04:30 PM

.5 05:08 PM

.2 06:15 PM

.3 07:15 PM

.9 08:27 PM

.1 09:45 PM

.1 10:38 PM

PM10 concentration

ANY 7

OM

Hourly M Conc (STP)

µg/m^3)

HourlyCon(LTP

(µg/m

6.2

6.3

14

7.7

6.5

7.9

6.5

14.5

21.2

22.7

27.3

28.6

8.7

4.8

-0.8

2.1

7.3

1.5

4.8

1.2

3.6

3.9

3.3

5.6

ns on the North TE

y PM nc P)

m^3)

24-houConc (

(µg/m

5.6

5.7

12.7

6.9

5.9

7.2

6

13.4

19.4

20.7

24.9

25.6

7.7

4.2

-0.7

1.9

6.5

1.4

4.3

1.1

3.3

3.5

3

5.1

EOM on Decembe

ur Avg (STP) m^3)

12.1

11.7

11.6

11.2

10.7

10

9.6

9.8

10.2

10.6

11.2

12.1

12.1

11.8

11.4

10.5

10.2

9.8

9.7

9.4

9.3

9.2

9

9

er 1, 2012.

BUCKBU

Buc


kskin M12-

MINING

PO BOX 3027 ~ GILL

Mine No-01-201


orth TEO12

ANY 7

OM

Date/Tim

12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11: 12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11:


me Wind Speed (m/s)

:00 AM 4.2:00 AM 4.3:00 AM 3.7:00 AM 4.6:00 AM 4.5:00 AM 4.1:00 AM 7.3:00 AM 7.7:00 AM 7.8:00 AM 9.3:00 AM 17.1:00 AM 18.6:00 PM 17.5:00 PM 18.1:00 PM 16.7:00 PM 13.7:00 PM 13.4:00 PM 14.4:00 PM 15.4:00 PM 15.3:00 PM 15.6:00 PM 15:00 PM 14.6:00 PM 13.3eed Averagend speed, Wind gu

BUCKBU

Buc

12-02

Wind Speed (mi/hr)

WindDirect

(°)

9.409.628.28

10.2910.07

9.1716.3317.2217.4520.8038.2541.6139.1540.4937.3630.6529.9732.2134.4534.2334.9033.5532.6629.7510.87

ust speeds, hourly


kskin M

2-2012 H

d tion Precip

(in)

161 0171 0173 0192 0180 0158 0181 0173 0156 0176 0194 0186 0188 0190 0189 0191 0192 0197 0201 0203 0207 0208 0217 0246 0

y PM10 concentatio

N

MINING

PO BOX 3027 ~ GILL

Mine No

HIGH W

Gust (m/s)

Gust (mi/Hr

6.5 146.4 146.5 147.7 177.5 167.8 179.8 21

11.5 2512.4 2715.5 3428.3 6326.1 5825.7 5726.1 5824.5 5421.3 4720.4 4520.5 4521.4 4720.8 4621.3 4721.3 4720.8 4622.7 50

average 39.5

Table 2

2-Dec-12

ons, and 24-hour P

North TEOM


orth TEO

WIND EV

r)Time of

Gust

HPM

(µ

4.5 11:17 PM4.3 12:24 AM4.5 01:01 AM

.2 02:45 AM

.8 03:17 AM

.4 04:30 AM

.9 05:26 AM

.7 06:56 AM

.7 07:06 AM4.7 08:40 AM

.3 09:42 AM

.4 10:14 AM

.5 11:53 AM

.4 12:01 PM4.8 01:00 PM

.6 02:43 PM

.6 03:59 PM

.9 04:02 PM

.9 05:42 PM

.5 06:06 PM

.6 07:46 PM

.6 08:59 PM

.5 09:14 PM

.8 10:57 PM52PM10 concentration

ANY 7

OM

VENT

Hourly M Conc (STP)

µg/m^3)

HourlyCon(LTP

(µg/m

9.59.99.24.83.98.6

11.68.3

13.530.6

878.8980.8768.7677.3190.7114.7

95.290.862.531.729.421.720.835.4

ns on the North TE

y PM nc P)

m^3)

24-houConc (

(µg/m

8.69

8.44.33.67.9

10.57.4

12.127.2

776.1861.6670.5589.3165.7

99.582.578.854.427.625.618.918.231.2

EOM on Decembe

ur Avg (STP) m^3)

9.19.3

98.98.88.89.18.98.58.9

44.484.3

116.6144.9

153158

161.9165.4167.5168.8169.6169.9170.3

170

er 2, 2012.

BUCKBU

Buc

12-02


kskin M

2-2012 H

MINING

PO BOX 3027 ~ GILL

Mine No

HIGH W


orth TEO

WIND EV

ANY 7

OM

VENT

Date/Tim

12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11: 12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11:


me Wind Speed (m/s)

:00 AM 3:00 AM 2.7:00 AM 3:00 AM 3:00 AM 2.3:00 AM 3.5:00 AM 2.1:00 AM 2.6:00 AM 2.8:00 AM 1.8:00 AM 2:00 AM 1.9:00 PM 1.4:00 PM 2.2:00 PM 3.2:00 PM 4.2:00 PM 2.6:00 PM 6.1:00 PM 7.3:00 PM 4.8:00 PM 5.7:00 PM 4.2:00 PM 3.9:00 PM 5.7eed Averagend speed, Wind gu

BUCKBU

Buc

Wind Speed (mi/hr)

WindDirect

(°)

6.716.046.716.715.147.834.705.826.264.034.474.253.134.927.169.405.82

13.6516.3310.7412.75

9.408.72

12.7510.87

ust speeds, hourly


ckskin M

12-

d tion Precip

(in)

200 0179 0183 0209 0233 0350 0166 0163 0167 0150 0162 0177 0182 0265 0268 0235 0245 0230 0227 0200 0203 0202 0199 0205 0

W

y PM10 concentatio

MINING

PO BOX 3027 ~ GILL

Mine We

-01-201

Gust (m/s)

Gust (mi/Hr

6.2 135.9 134.5 104.6 105.2 115.5 124.5 103.8 84.3 93.6 83.4 7

3 63.4 74.1 95.9 135.7 125.4 129.3 20

10.5 237.7 178.2 18

8 178.1 188.1 18

Table 3 West TEOM

1-Dec-12

ons, and 24-hour P


est TEO

12

r)Time of

Gust

HPM

(µ

.9 11:05 PM

.2 12:15 AM

.1 01:32 AM

.3 02:42 AM

.6 03:57 AM

.3 04:53 AM

.1 05:00 AM

.5 06:36 AM

.6 07:53 AM

.1 08:34 AM

.6 09:48 AM

.7 10:14 AM

.6 11:36 AM

.2 12:12 PM

.2 01:50 PM

.8 02:21 PM

.1 03:00 PM

.8 04:30 PM

.5 05:08 PM

.2 06:15 PM

.3 07:15 PM

.9 08:27 PM

.1 09:45 PM

.1 10:38 PM

PM10 concentration

ANY 7

OM

Hourly M Conc (STP)

µg/m^3)

HourlyCon(LTP

(µg/m

6

5.4

7.8

7.5

7.2

7.5

5.3

6.5

8.1

7

7.9

6

2.8

2.6

3.2

3.5

5.5

3.2

4.3

4.1

3.6

4.6

3.3

6.4

ns on the West TE

y PM nc P)

m^3)

24-houConc (

(µg/m

5.3

4.8

7

6.7

6.4

6.8

4.8

6

7.3

6.3

7.1

5.3

2.4

2.3

2.8

3

4.9

2.8

3.8

3.7

3.3

4.1

3

5.8

EOM on Decembe

ur Avg (STP) m^3)

9.2

9.2

9.2

9

9

8.9

8.4

8.1

8

7.9

7.8

7.9

7.6

7.3

7.1

6.9

6.4

6.2

6

5.9

5.7

5.5

5.4

5.3

r 1, 2012.

BUCKBU

Buc


ckskin M

12

MINING

PO BOX 3027 ~ GILL

Mine We

2-1-2012


est TEO

2

ANY 7

OM

Date/Tim

12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11: 12: 01: 02: 03: 04: 05: 06: 07: 08: 09: 10: 11:

5yr wind speTable 4: W

meWind Spee

d (m/s)

00 AM 4.2

00 AM 4.3

00 AM 3.7

00 AM 4.6

00 AM 4.5

00 AM 4.1

00 AM 7.3

00 AM 7.7

00 AM 7.8

00 AM 9.3

00 AM 17.1

00 AM 18.6

:00 PM 17.5

:00 PM 18.1

:00 PM 16.7

:00 PM 13.7

:00 PM 13.4

:00 PM 14.4

:00 PM 15.4

:00 PM 15.3

:00 PM 15.6

:00 PM 15

:00 PM 14.6

:00 PM 13.3

eed averageWind speed, Wind

BUCKBU

Buc

12-2-

Wind Speed (mi/hr)

WinDirec

n (°

9.409.628.28

10.2910.07

9.1716.3317.2217.4520.8038.2541.6139.1540.4937.3630.6529.9732.2134.4534.2334.9033.5532.6629.7510.87

gust speeds, hour


ckskin M

-2012 H

nd ctio)

Precip (in)

161 0171 0173 0192 0180 0158 0181 0173 0156 0176 0194 0186 0188 0190 0189 0191 0192 0197 0201 0203 0207 0208 0217 0246 0

W

rly PM10 concentatio

MINING

PO BOX 3027 ~ GILL

Mine We

HIGH W

Gust (m/s)

Gust (mi/Hr

6.5 146.4 146.5 147.7 177.5 167.8 179.8 21

11.5 2512.4 2715.5 3428.3 6326.1 5825.7 5726.1 5824.5 5421.3 4720.4 4520.5 4521.4 4720.8 4621.3 4721.3 4720.8 4622.7 50

average 39.5

Table 4West TEOM

2-Dec-12

ons, and 24-hour P


est TEO

IND EV

r)Time of

Gust

H

(µ

4.5 11:17 PM

4.3 12:24 AM

4.5 01:01 AM

7.2 02:45 AM

6.8 03:17 AM

7.4 04:30 AM

1.9 05:26 AM

5.7 06:56 AM

7.7 07:06 AM

4.7 08:40 AM

3.3 09:42 AM

8.4 10:14 AM

7.5 11:53 AM

8.4 12:01 PM

4.8 01:00 PM

7.6 02:43 PM

5.6 03:59 PM

5.9 04:02 PM

7.9 05:42 PM

6.5 06:06 PM

7.6 07:46 PM

7.6 08:59 PM

6.5 09:14 PM

0.8 10:57 PM

52PM10 concentrations

ANY 7

OM

ENT

Hourly PM

Conc (STP)

µg/m^3)

HourlyCon(LTP

(µg/m

6.1

4.9

5.4

3.3

3.4

4.6

5.2

4.3

6.3

8.6

130.5

41.8

57.3

58.4

32.3

37.7

35.1

26.1

27.6

25.5

25.5

19.6

17.5

22.7

s on the West TEO

y PM nc P)

m^3)

24-houConc (

(µg/m

5.5

4.4

4.8

2.9

3.1

4.1

4.7

3.8

5.6

7.5

114.1

36.3

49.5

50.4

27.8

32.4

30.1

22.5

23.8

22

22.1

17

15.2

19.8

M on December 2,

ur Avg (STP) m^3)

5.4

5.3

5.3

5.1

4.9

4.8

4.8

4.7

4.7

4.8

9.9

11.4

13.8

16.1

17.4

18.8

20.1

21

21.9

22.8

23.7

24.2

24.8

25.3

2012.

BUCKBU

Buc

12-2-


ckskin M

-2012 H

MINING

PO BOX 3027 ~ GILL

Mine We

HIGH W


est TEO

IND EV

ANY 7

OM

ENT

Pictures

of the Event

BUCKBU

t


Main Pit

MINING

PO BOX 3027 ~ GILL

Looking Sou


uth East

ANY 7

BUCKBU


Main

MINING

PO BOX 3027 ~ GILL

Pit Looking E


East

ANY 7

BUCKBU


Water Truck

MINING

PO BOX 3027 ~ GILL

k on the Bac


ckfill 3 Run

ANY 7

BUCKBU


Main Pit L

MINING

PO BOX 3027 ~ GILL

Looking Sout


th West

ANY 7

Fug

BUCKBU

itive Dust Co


oming from

MINING

PO BOX 3027 ~ GILL

Rawhide Mi


ine Outside

ANY 7

of Our Permmit

Metrologgical Figures

BUCKBU


MINING

PO BOX 3027 ~ GILL


ANY 7

BUCKBU


MINING

PO BOX 3027 ~ GILL


ANY 7

LOW WATER

CROSSING

LOW WATER

CROSSING

NORTHEAST

LOW-WATER CROSSING

SOUTHWEST

LOW-WATER CROSSING

(Not Constructed as of 05/10)

P

O

S

S

I

B

L

E

F

U

T

U

R

E

P

E

R

I

M

E

T

E

R

R

O

A

D

WATERING

STATION

S

E

D

2

2

R

O

A

D

TS-9

(2001-EOM)

TS-1

(1981-POSTMINING)

TS-13

(2002-EOM)

ARTS-NO.1

ARTS-NO.3

ARTS-NO.6

ARTS-NO.8

ARTS-NO.11

ARTS-NO.15

ARTS-NO.13

ARTS-NO.2

ARTS-NO.4

ARTS-NO.5

ARTS-NO.7

ARTS-NO.9

ARTS-NO.10

ARTS-NO.12

ARTS-NO.14

RRTS-NO.1

RRTS-NO.2

RRTS-NO.3

RRTS-NO.4

RRTS-NO.5

RRTS-NO.8

RRTS-NO.10

RRTS-NO.7

RRTS-NO.12

RRTS-NO.14

RRTS-NO.15

RRTS-NO.16

RRTS-NO.18

RRTS-NO.17

RRTS-NO.19

SARTS

NO-1

TS-10

(1996-EOM)

TS-6

(1991-EOM)

TS-4

(1991-EOM)

TS-21

(2007-EOM)

T

S

-

1

9

(

2

0

0

9

-

E

O

M

)

TS-22

(2010-EOM)

TS-20

(2007-EOM)

TS-17-18

(2004-EOM)

TS-23

(2010-EOM)

TS-2

(1983-EOM)

TS-24

(2010-EOM)

(2005-EOM)

TS-16

(2004-EOM)

T

S

-

1

2

(

2

0

0

5

-

E

O

M

)

BUCKSKIN MINE

ACCESS ROAD

MAIN

FUELING

STATION

WATER

FILLING

STATION

PUMP

MCC ROOM

MCC ROOM

LOADOUT SILOS

MCC ROOM

MCC ROOM

SEWAGE SYSTEM NO. 2

MAIN

FUELING

STATION

HOPPER

EXPANSION SILOS

TRANSFER TOWER 3

MAIN SUBSTATION

ENCOAL RAW COAL SILO

STORAGE AREA

PLANT OFFICE / LAB

OLD ENCOAL TANK FARM

OLD ENCOAL FACILITY

SHOP/OFFICE

Land Farm #1

Kiewit

Mining

Ranch

House

SEDIMENTATION

NO. 33 RESERVOIR

SEDIMENTATION

NO. 34

RESERVOIR

SEDIMENTATION

NO. 30

RESERVOIR

TCO SUMP

PANEL B

STORAGE POND

WA

TE

R S

TO

RA

GE

SEDIMENTATION

No. 14 RESERVOIR

W

A

S

T

E

W

A

T

E

R

CONVEYOR

SUMP

INPIT HOPPER

SUMP

SEDIMENTATION

TRAP OB-5E

SEDIMENTATION

No. 3 RESERVOIR

SEDIMENTATION

TRAP OB-5W

SEDIMENTATION

TRAP OB-5S

SEDIMENTATION

No. 1

RESERVOIR

SEDIMENTATION

No. 13

RESERVOIR

HAY

CREEK

DIVERSION

BLOCKING

DIKE

HAY CREEK DIVERSION

BACKFILL 3

SUMP

Steve

Barbour

Tom

Barbour

KMG

Hunting

Trailer

Tom

Barbour

Cecle

Cook

Byron

Oedekoven

RENTAL

C

E

L

L

1

C

E

L

L

2

POWDER RIVER

ENERGY CORP.

SEDIMENTATION

No. 22 RESERVOIR

SHUNTING SUMP

(2011-EOM)

SUMP CELL

BF 5

(2012-EOM)

SUMP CELL

BF 6

(2012-EOM)

TS-2

(2012-EOM)

9 10

8 9

7 812 7

9 10

16 15

8 9

17 16

7 8

18 17

12 7

13 18

28 27

33 34

16 15

21 22

21 22

28 27

33 34

4 3

18 17

19 20

19 20

30 29

31 32

6 5

13 18

24 19

24 19

25 30

25 30

36 31

30 29

31 32

20 21

29 28

17 16

20 21

29 28

32 33

32 33

5 4

36 31

1 6

Backfill 3

Location

Overburden &

Coal Operations

B

a

c

k

f

i

l

l

3

H

a

u

l

R

a

o

d

BUCKSKIN MINING COMPANY

Mine Facilities Overview

MAP # 1Revision:

Design: 12-2-2012 NEAP

Spec:

Plot:

Date: 12-21-2012Drawn By: Landon Smith Checked by: Landon Smith

BUCKSKIN MINING COMPANYPO Box 3027Campbell CountyGillette, WY 82717307-686-5439

N

landon.smith

Line

landon.smith

Typewritten Text

Wind Direction

02/21/2013

02/27/2013


BUCKSKIN MINE, PO BOX 3027 ~ GILLETTE, WY 82717

February 27, 2013 Cara Keslar Wyoming Department of Environmental Quality Air Quality Division 112 West 25th Street Cheyenne, WY 82002 RE: Request for Flag under the Exceptional Event Rule for PM10 December 02, 2012 Exceedance Dear Cara,

Included are Buckskin Mining Company’s responses to Air Quality Division’s questions concerning

the December 02, 2012 PM10 exceedance.

Sincerely,

Landon Smith Environmental Coordinator Email: [email protected] Phone: (307) 686-5404 cc: Greg Passini



Page2

Comment: A timeline for the day noting equipment idled and/ or moved in reaction to the high

readings. Response: 05:30- Day shift begins 08:47- Blowing Dust Health Alert Advisory from AQD was sent to pit superintendents. - Superintendents took action by moving the two overburden hauls to the lowest

backfill dump, Backfill three, and assigned a 30,000 gallon water truck to that backfill 3 haul route for the rest of shift.

09:42- Highest recorded wind gust: 63.3mph - Superintendents added a 20,000 gallon water truck to assist in dust suppression on backfill and overburden benches. 10:00- High Wind Alert was sent from the TEOM to appropriate BMC Staff. - At the same time, a High Concentration Alert of 878.8µg/m3 was received from the TEOM - BMC reacted by taking early lunches in order to idle production during the event. 10:30- Early Lunches were started.

-Coal operations were first. Equipment idled at this time were 10-2766 shovel, 10-2936 Back Hoe, 10-2765 shovel, nine 240 ton haul trucks, and one 24m caterpillar blade for a total shutdown time of 1 hour. See Map #1 for equipment location.

- Production at this time was reduced by roughly half - Water trucks remained active throughout the entire lunch period, 10:30-13:00. 11:00- Highest one hour concentration was received, 980.8µg/m3 at a time of limited productivity. 11:30- Overburden operations begin lunch

-10-3038 P&H 4100 shovel idled first along with six, 400ton Caterpillar 797 haul trucks and 1 Caterpillar 24m Blade for approximately 30 minutes.

12:00- The final overburden lunch is started -10-2927 P&H 4100 shovel is idled along with five, 400ton Caterpillar 797 haul trucks for approximately 30 minutes.

12:30- Additional support equipment lunch begins -Equipment idled at this time were two Caterpillar Lube trucks, three Caterpillar rubber tire dozers, and two Caterpillar track dozers for approximately 30 minutes.

14:00- The last 1 hour concentration over 150µg/m3 was recorded. - The first high 24 hour concentration level alert 153µg/m3 was sent from the TEOM 15:00- 1 hour concentration levels fall below the maximum allowable limit to 114.7µg/m3 Comment: A facility map showing equipment location, mining activities, and water distribution



Page3

activities throughout the day. Response: Enclosed with the response packet. Comment: AQD requests that BMC separates the controls required by the permit BACT from those which are continuously employed but not required by the permit BACM Response: Controls required by the permit:

‐ Areas where topsoil has been replaced are ripped and seeded as soon as its practical after topsoil replacement

‐ During the operation of topsoil stripping, the active operation is frequently watered to reduce dust emissions.

At the time of the event, all topsoil operations were complete, and windrows were constructed

‐ Pads in front of truck dumps are cleaned, treated, and maintained to prevent material that accumulates on the pads due to spillage from being pulverized and a potential source of fugitive dust.

‐ All of Buckskin’s permanent roads and areas around facilities are treated with magnesium chloride annually to prevent dust.

‐ Buckskin’s operational areas are watered continually by water trucks ranging from 20,000 to 30,000 gallons.

‐ As a preventative measure, Buckskin ensures that nearby Collins Road and McGee Road also receive magnesium chloride treatment.

‐ Stilling sheds, bag houses, and passive enclosure control systems are used in plant operations.

Continuously Employed Controls ‐ Buckskin has no final graded backfill larger than 300 contiguous acres that need

to be addressed. ‐ Long term out‐of‐pit overburden and topsoil piles are seeded. ‐ When possible, Buckskin schedules topsoil removal, grading backfill, and topsoil

replacement concurrently to minimize open areas ‐ Topsoil Contractors, and Scoria Contractors are required to apply water around

their work area. ‐ As a preventative measure, Buckskin ensures that nearby Collins Road and

McGee Road also receive magnesium chloride treatment.



Page4

Comment: Please discuss the exposed acreage at the mine on the day of the exceedance. Response: On December 02, 2012 approximately 130 acres were exposed due to topsoil salvage

operations. The entire 130 acres were stabilized by windrows and rough grading. BMC inspects these control measures regularly to insure proper control. During the event, these windrows were adequately controlling wind shear at ground level. Windrows were verified and deemed acceptable on an August 28, 2012 WYDEQ Air Quality Inspection. In addition, two topsoil piles, TS-09 and TS-23, that received topsoil from the above stated area were seeded and mulched at the time of the event.

Comment: To minimize confusion please revise the graphs throughout the submission so that the x-

axis uses the same time scale as the table. Response: Revised tables and graphs are contained at the back of this packet.



Page5

Buckskin Mine North TEOM 12‐01‐2012



Page6

Buckskin Mine North TEOM 12‐01‐2012



Page7

Buckskin Mine North TEOM 12‐02‐2012 High Wind Event

Date/Time Wind Speed (m/s)

Wind Speed (mi/hr)

Wind Direction

(°)Precip

(in)Gust (m/s)

Gust (mi/Hr)

Time of Gust

Hourly PM Conc

(STP) (µg/m^3)

Hourly PM Conc (LTP)

(µg/m^3)

24-hour Avg Conc (STP)

(µg/m^3)

12:00 AM 4.2 9.40 161 0 6.5 14.5 11:17 PM 9.5 8.6 9.1

01:00 AM 4.3 9.62 171 0 6.4 14.3 12:24 AM 9.9 9 9.3

02:00 AM 3.7 8.28 173 0 6.5 14.5 01:01 AM 9.2 8.4 9

03:00 AM 4.6 10.29 192 0 7.7 17.2 02:45 AM 4.8 4.3 8.9

04:00 AM 4.5 10.07 180 0 7.5 16.8 03:17 AM 3.9 3.6 8.8

05:00 AM 4.1 9.17 158 0 7.8 17.4 04:30 AM 8.6 7.9 8.8

06:00 AM 7.3 16.33 181 0 9.8 21.9 05:26 AM 11.6 10.5 9.1

07:00 AM 7.7 17.22 173 0 11.5 25.7 06:56 AM 8.3 7.4 8.9

08:00 AM 7.8 17.45 156 0 12.4 27.7 07:06 AM 13.5 12.1 8.5

09:00 AM 9.3 20.80 176 0 15.5 34.7 08:40 AM 30.6 27.2 8.9

10:00 AM 17.1 38.25 194 0 28.3 63.3 09:42 AM 878.8 776.1 44.4

11:00 AM 18.6 41.61 186 0 26.1 58.4 10:14 AM 980.8 861.6 84.3

12:00 PM 17.5 39.15 188 0 25.7 57.5 11:53 AM 768.7 670.5 116.6

01:00 PM 18.1 40.49 190 0 26.1 58.4 12:01 PM 677.3 589.3 144.9

02:00 PM 16.7 37.36 189 0 24.5 54.8 01:00 PM 190.7 165.7 153

03:00 PM 13.7 30.65 191 0 21.3 47.6 02:43 PM 114.7 99.5 158

04:00 PM 13.4 29.97 192 0 20.4 45.6 03:59 PM 95.2 82.5 161.9

05:00 PM 14.4 32.21 197 0 20.5 45.9 04:02 PM 90.8 78.8 165.4

06:00 PM 15.4 34.45 201 0 21.4 47.9 05:42 PM 62.5 54.4 167.5

07:00 PM 15.3 34.23 203 0 20.8 46.5 06:06 PM 31.7 27.6 168.8

08:00 PM 15.6 34.90 207 0 21.3 47.6 07:46 PM 29.4 25.6 169.6

09:00 PM 15 33.55 208 0 21.3 47.6 08:59 PM 21.7 18.9 169.9

10:00 PM 14.6 32.66 217 0 20.8 46.5 09:14 PM 20.8 18.2 170.3

11:00 PM 13.3 29.75 246 0 22.7 50.8 10:57 PM 35.4 31.2 170

5yr Wind Speed Average 10.87 average 39.52

Table 2

2-Dec-12

Table 2: Wind speed, Wind gust speeds, hourly PM10 concentations, and 24-hour PM10 concentrations on the North TEOM on December 2, 2012.

North TEOM



Page8

Buckskin Mine North TEOM 12‐02‐2012 High Wind Event



Page9

Buckskin Mine West TEOM 12‐01‐2012



Page10




Page11




Page12

Buckskin Mine West TEOM 12‐02‐2012 High Wind Event

LOW WATER

CROSSING

LOW WATER

CROSSING

NORTHEAST

LOW-WATER CROSSING

SOUTHWEST

LOW-WATER CROSSING

(Not Constructed as of 05/10)

P

O

S

S

I

B

L

E

F

U

T

U

R

E

P

E

R

I

M

E

T

E

R

R

O

A

D

WATERING

STATION

S

E

D

2

2

R

O

A

D

TS-9

(2001-EOM)

TS-1

(1981-POSTMINING)

TS-13

(2002-EOM)

ARTS-NO.1

ARTS-NO.3

ARTS-NO.6

ARTS-NO.8

ARTS-NO.11

ARTS-NO.15

ARTS-NO.13

ARTS-NO.2

ARTS-NO.4

ARTS-NO.5

ARTS-NO.7

ARTS-NO.9

ARTS-NO.10

ARTS-NO.12

ARTS-NO.14

RRTS-NO.1

RRTS-NO.2

RRTS-NO.3

RRTS-NO.4

RRTS-NO.5

RRTS-NO.8

RRTS-NO.10

RRTS-NO.7

RRTS-NO.12

RRTS-NO.14

RRTS-NO.15

RRTS-NO.16

RRTS-NO.18

RRTS-NO.17

RRTS-NO.19

SARTS

NO-1

TS-10

(1996-EOM)

TS-6

(1991-EOM)

TS-4

(1991-EOM)

TS-21

(2007-EOM)

T

S

-

1

9

(

2

0

0

9

-

E

O

M

)

TS-22

(2010-EOM)

TS-20

(2007-EOM)

TS-17-18

(2004-EOM)

TS-23

(2010-EOM)

TS-2

(1983-EOM)

TS-24

(2010-EOM)

(2005-EOM)

TS-16

(2004-EOM)

T

S

-

1

2

(

2

0

0

5

-

E

O

M

)

BUCKSKIN MINE

ACCESS ROAD

MAIN

FUELING

STATION

WATER

FILLING

STATION

PUMP

MCC ROOM

MCC ROOM

LOADOUT SILOS

MCC ROOM

MCC ROOM

SEWAGE SYSTEM NO. 2

MAIN

FUELING

STATION

HOPPER

EXPANSION SILOS

TRANSFER TOWER 3

MAIN SUBSTATION

ENCOAL RAW COAL SILO

STORAGE AREA

PLANT OFFICE / LAB

OLD ENCOAL TANK FARM

OLD ENCOAL FACILITY

SHOP/OFFICE

Land Farm #1

Kiewit

Mining

Ranch

House

SEDIMENTATION

NO. 33 RESERVOIR

SEDIMENTATION

NO. 34

RESERVOIR

SEDIMENTATION

NO. 30

RESERVOIR

TCO SUMP

PANEL B

STORAGE POND

WA

TE

R S

TO

RA

GE

SEDIMENTATION

No. 14 RESERVOIR

W

A

S

T

E

W

A

T

E

R

CONVEYOR

SUMP

INPIT HOPPER

SUMP

SEDIMENTATION

TRAP OB-5E

SEDIMENTATION

No. 3 RESERVOIR

SEDIMENTATION

TRAP OB-5W

SEDIMENTATION

TRAP OB-5S

SEDIMENTATION

No. 1

RESERVOIR

SEDIMENTATION

No. 13

RESERVOIR

HAY

CREEK

DIVERSION

BLOCKING

DIKE

HAY CREEK DIVERSION

BACKFILL 3

SUMP

Steve

Barbour

Tom

Barbour

KMG

Hunting

Trailer

Tom

Barbour

Cecle

Cook

Byron

Oedekoven

RENTAL

C

E

L

L

1

C

E

L

L

2

POWDER RIVER

ENERGY CORP.

SEDIMENTATION

No. 22 RESERVOIR

SHUNTING SUMP

(2011-EOM)

SUMP CELL

BF 5

(2012-EOM)

SUMP CELL

BF 6

(2012-EOM)

TS-2

(2012-EOM)

9 10

8 9

7 812 7

9 10

16 15

8 9

17 16

7 8

18 17

12 7

13 18

28 27

33 34

16 15

21 22

21 22

28 27

33 34

4 3

18 17

19 20

19 20

30 29

31 32

6 5

13 18

24 19

24 19

25 30

25 30

36 31

30 29

31 32

20 21

29 28

17 16

20 21

29 28

32 33

32 33

5 4

36 31

1 6

Backfill 3

Location

B

a

c

k

f

i

l

l

3

H

a

u

l

R

a

o

d

10-2766 Shovel

10-2936 Hoe

10-3038 Shovel

10-2927 Shovel

10-2765 Shovel

10-2764 Shovel

Overburden &

Coal Operations


Mine Facilities Overview

MAP # 1Revision:

Design: 12-2-2012 NEAP

Spec:

Plot:

Date: 02-26-2013Drawn By: Landon Smith Checked by: Landon Smith

BUCKSKIN MINING COMPANYPO Box 3027Campbell CountyGillette, WY 82717307-686-5439

N

04/29/2013

buckskin mining company 12/02/2012 ambient air …deq.wyoming.gov/media/attachments/air...

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