EXHIBIT 3

EXHIBIT 3

McCarran MTBEMap Q4 2018

NDEP 00038

FIGUR

E

Z:\PROJECTS\McCarran\GIS\Events\20181212_2018Q4\mxd

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OMW-43 (9.9)

PMW-8-45 (3.6)

HJMW-25 (3.0)

OMW-48-45 (< 2.0)

PMW-1 (2.4)

OMW-68-35 (< 2.0)

OMW-71-30 (< 2.0)

OMW-76-72 (< 2.0)

OMW-68-50 (2.1)

OMW-75-76 (3.0)

OMW-72-77 (< 2.0)

PMW-1-40 (< 2.0)

OMW-34 (< 2.0)

OMW-73-73 (710)

OMW-72-39 (140)

OMW-43-45 (< 2.0)

OMW-79-52 (770)

OMW-76-40 (< 2.0)

OMW-75-39 (79)

HJMW-30 (< 2.0)

HJMW-26 (< 2.0)

HJMW-22 (< 2.0)

PMW-7-45 (< 2.0)

PMW-1-60 (< 2.0)

OMW-79-79 (< 2.0)

OMW-78-57 (< 2.0)

OMW-71-60 (< 2.0)

OMW-70-60 (< 2.0)

OMW-48-30 (< 2.0)

OMW-44-52 (< 2.0)

OMW-80-57 (< 2.0)

OMW-74-72 (900)

OMW-74-41 (30)

OMW-43-30 (8.8)OMW-73-32

(< 2.0)

AVMW-20 (3.5)

PMW-9-45 (73)

OMW-73-57 (640)

OMW-72-59 (1,100)

OMW-74-61 (1,200) OMW-43-60

(1,200)

OMW-75-61 (740)

PMW-1-30 (< 2.0)

MW-21-60 (< 2.0)

MW-21-45 (< 2.0)

MW-21-30 (< 2.0)

PMW-10-45 (7.9)

OMW-76-60 (8.2)

OMW-71-45 (< 2.0)

OMW-70-45 (< 2.0)

OMW-70-30 (< 2.0)

OMW-68-65 (< 2.0)

OMW-48-65 (< 2.0)

OMW-43-75 (< 2.0)

PMW-11-45 (< 2.0)

PAS-6-52(< 2.0)

200

200

200

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MTBE

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Four

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PAS-9-50 (< 2.0)

PMW-12-43 (26)

HJMW-75-40 (14)

PAS-10-57 (< 2.0)

PMW-16-50 (48)

PMW-15-43 (< 2.0)

PMW-14-48 (< 2.0)

PMW-13-45 (2.0)

HJMW-74-45 (< 2.0)

AVMW-45-45 (3.0)

AVMW-45-65 (< 2.0)

AVMW-15(< 2.0)

AVMW-61-53(< 2.0)

HJMW-50-50(< 2.0)

PMW-17-52(1,200)

PMW-18-52(40)

PAS-2-52 ( 2.2)

PAS-7-52 (< 2.0)

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AVMW-66-50 (< 2.0)AVMW-59-65

(< 2.0)AVMW-59-50

(< 2.0)AVMW-59-35

(6.0)

AVMW-50-35 (< 2.0)

AVMW-50-65 (14)

AVMW-50-50 (< 2.0)

AVMW-63-53(< 2.0)

AVMW-57(< 2.0)

CONV

ERSE

CO

NSUL

TANT

SBR

OADB

ENT &

AS

SOCI

ATES

, INC.

Service Layer Credits: Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri(Thailand), NGCC, © OpenStreetMap contributors, and the GIS User Community

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MW-23-62(41)

MW-23-40(690)

MW-23-30(11)

MW-2(17)

MW-16-30(3.9)

MW-16-42(470)

MW-16-60(2,400)

MW-18 (< 2.0)

MW-22-30 (< 2.0)

MW-22-48 (< 2.0)

MW-22-60 (< 2.0)

MW-6(50)

MW-1(< 2.0)

MW-3(< 2.0)

MW-20-30(< 2.0)

MW-20-45(< 2.0)

MW-20-60(< 2.0)

MW-19-30(< 2.0)

MW-19-45(< 2.0)

MW-19-60(< 2.0)

7901

Ston

eridg

e Driv

e, Su

ite 31

5 Ple

asan

ton,

CA 94

588-3

677

PH. (9

25) 4

63-73

01 F

AX. (9

25) 4

63-73

51

CE2 C

orpo

ration

McGI

NLEY

& AS

SOCI

ATES

Contours200 ug/L Isoconcentration contour

Legend

NotesMTBE: Methyl tert-butyl ether

Well CompletionShallow zone!

Intermediate zone#

Deep zone"

Ü0 175 350 525 700

Feet

1" = 350'

ConcentrationsNot Detected!(

Detected to < 200 ug/L!(

!( Greater than 1,000 ug/L200 to 1,000 ug/L!(

Preliminary Data. The map has been provided to NDEP for reference, but has not been fully verified and submitted as final.

NDEP 00039