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COMPANYADDRESSCITYSTATEZIPPHONECOUNTY
L.H. HALL AND SON WELL DRILLING10 STADIUM RD P.O. BOX 302MILLSBOROPA15348(330) 301-1022WASHINGTON
COTTRELL703 MAIN ST. EASTONPA18040(610) 759-1701NORTHAMPTON
PODHYSKI WELL DRILLING197 PIERCE RD GREENFIELD TOWNSHIPPA18407(570) 222-4694LACKAWANNA
A C REIDER INC51 FREDERICK ST DALLASTOWNPA17313(717) 244-4521YORK
A C SCHULTES OF DELAWARE INCP O BOX 188 BRIDGEVILLEDE19933(302) 337-8254 
A L HALL DRILLING8618 TOWER RD SPRINGBOROPA16435(814) 587-6066CRAWFORD
AC SCHULTES INC664 S EVERGREEN AVE WOODBURY HEIGHTSNJ08097(856) 845-5656 
ACTION DRILLING, INC.14520 ROUTE 19 CAMBRIDGE SPRINGSPA16403(814) 398-1043CRAWFORD
ADVANCED DRILLING INC3 COLT ROAD PITTSTOWNNJ08867(908) 730-7060 
ADVANCED ENVIRONMENTAL CONCEPTS INC.5292 ENTERPRISE ST SUITE CELDERSBURGMD21784(410) 795-5955 
AL'S WATER SERVICE2699 JEFFERSON AVE WASHINGTONPA15301(724) 222-9059WASHINGTON
ALEX E PARIS CONTRACTING CO INC1595 SMITH TOWNSHIP STATE RD ATLASBURGPA15004(724) 947-2235WASHINGTON
ALEXANDER ALEXANDER'S WELL DRILLINGPO BOX 443 126 W MAIN ST FAIRFIELDPA17320(717) 642-5963ADAMS
ALLEGANY WELL DRILLING, LLCPO BOX 1084 BRADFORDPA16701(814) 598-9265MCKEAN
AMERICAN ENVIRONMENTAL ASSESSMENT CORP.189 MAXIM ROAD HARTFORDCT06114(860) 560-0888 
AMERIDRILL, INC.1201 EDGELY RD LEVITTOWNPA19057(215) 269-7300BUCKS
ANDREWS WELL DRILLING INC12580 ROUTE 6 WELLSBOROPA16901(570) 724-4107TIOGA
AQUIFER DRILLING & TESTING INC9 MONROE STREET TROYNY12180(518) 274-3949 
ARM GROUP INC.1129 W. GOVERNOR RD PO BOX 797HERSHEYPA17033(717) 533-8600DAUPHIN
ARS TECHNOLOGIES, INC.98 NORTH WARD STNEW BRUNSWICKNJ08901(732) 296-6620 
AUSTIN JAMES ASSOCIATES, INC.PO BOX U POCONO PINESPA18350(570) 646-5431MONROE
AZTECH TECHNOLOGIES5 MCCREA HILL RD BALLSTON SPANY12020(518) 885-5383 
B & M WELL DRILLING7863 CLARK RD ERIEPA16510(814) 899-6760ERIE
B L MYERS BROS. OF PA. INC.1799 HORSESHOE PIKE PO BOX 490GLENMOOREPA19343(610) 942-2030CHESTER
B.F. ENVIRONMENTAL CONSULTANTS INC.15 HILLCREST DRIVE DALLASPA18612(570) 335-1947LUZERNE
B.T.M. SERVICES DRILLING & REPAIR50 CORTRIGHT RD PORT JERVISNY12771(845) 856-4488 
BAKER DRILLING1203 FREEPORT RD KITTANNINGPA16201(724) 545-9857ARMSTRONG
BARBER & DELINE, LLC995 ROUTE 11A TULLYNY13159(315) 696-8961 
BARNEY MORAVEC INC.207-1/2 LAKE STPENN YANNY14527(315) 536-3911 
BARTMAN'S PLUMBING, HEATING & A/C825 MONTGOMERY AVE BOYERTOWNPA19512(610) 369-1775BERKS
BEAVERS WELL DRILLING, LLC198 EBS CORNER ROAD HALLSTEADPA18822(570) 278-4104 
BELLES302 MAIN ROAD SHICKSHINNYPA18655(570) 760-2424LUZERNE
BELOW GROUND SERVICES, INC.1740 MOUNTAIN ROAD SAYLORSBURGPA18353(484) 221-1341MONROE
BJAAM ENVIRONMENTAL INC472 ELM RIDGE AVENUE CANAL FULTONOH44614(330) 854-5300 
BLUESTONE, INC.170 CHERRY BLOSSOM DRCHURCHVILLEPA18966(215) 364-1415BUCKS
BOART LONGYEAR COMPANY300 GRAYSON RD. P.O. BOX 919WYTHEVILLEVA24382(276) 228-7811 
BOART LONGYEAR E & I DRILLING SERVICES1010 GREENE STREET MARIETTAOH45750(740) 373-2190 
BOB BELLOWS WELL DRILLING49 PUMPKIN HILL XRD MILLERTONPA16936(570) 537-2195TIOGA
BOOK & PROCH WELL DRILLING, INC.314 OLD YOUNGSTOWN ROAD NEW CASTLEPA16101(724) 652-9861LAWRENCE
BOOKAMER DRILLING COMPANY7868 DUTCH HILL RD MEADVILLEPA16335(814) 425-3450CRAWFORD
BRENNEMAN WELL DRILLING INCPO BOX 245 ACCIDENTMD21520(301) 746-8666 
BRETT E HUDNETT131 JOHN RINGO RD RINGOESNJ08551(908) 782-6396 
BROWN BROS DRILLING INC497 KIRKS MILL RD NOTTINGHAMPA19362(717) 548-2500LANCASTER
BUCK'S WATER WELL DRILLING AND EXCAVATING24890 N MOSIERTOWN RD EDINBOROPA16412(814) 282-7698CRAWFORD
BUCKEYE PROBE, LTD.3330 E WATERLOO RD AKRONOH44312(330) 628-6737 
BUCKS COUNTY ARTESIAN WELL DRILLING CO INC1075 GENERAL SULLIVAN ROAD WASHINGTON CROSSINGPA18977(215) 493-1867BUCKS
BURCH WELL DRILLING1817 WEST 52ND STERIEPA16509(814) 864-7139ERIE
BURNS DRILLING AND EXCAVATINGPO BOX 41 WIND RIDGEPA15380(724) 428-4361GREENE
C E SUNDAY & SON WATER WELL DRILLING7106 CARLISLE PIKE CARLISLEPA17013(717) 766-5604CUMBERLAND
C S GARBER & SONS INC7928 BOYERTOWN PIKE BOYERTOWNPA19512(610) 367-2861BERKS
C. NEMEC INC. 1605 DOOLEY RD STE 160 WHITEFORDMD21160(410) 452-9355 
CALVIN E. POWELL - POWELL DRILLING & SERVICES INCP O BOX 545 20 SMITHBRIDGE ROADCHESTER HEIGHTSPA19017(610) 459-1037DELAWARE
CARL KRUT & SONS162 MEADOW LANE FOMBELLPA16123(724) 452-5072BEAVER
CARSON WATER WELL INC.2212 STREET RD WARRINGTONPA18976(215) 343-6596BUCKS
CATO DRILLING, LLC702 BOWERS LANE MORGANTOWNWV26508(304) 594-3967 
CENTRAL NORTH CONSTRUCTION LLC5970 LINDSEY LANE PARKERTX75002(972) 442-1997 
CENTRE DRILLING INC935 WALTON ST PO BOX 525PHILIPSBURGPA16866(814) 342-6096CLEARFIELD
CHARLES TALCOTT WELL DRILLING799 STATE RT 38 OWEGONY13827(607) 687-1871 
CHATFIELD DRILLING INC854 MERCER RD GREENVILLEPA16125(724) 588-2652MERCER
CHISLER BROTHERS CONTRACTING LLCP O BOX 101 PENTRESSWV26544(304) 879-5511 
CHRISTOPHER BACKHOE & PLUMBING210 EAST GEORGE ST CARMICHAELSPA15320(724) 966-5372GREENE
CIZEK1259 GERMANIA RD GALETONPA16922(814) 435-6432POTTER
CLAIR KIBLER WELL DRILLINGRR 5 BOX 5670 KUNKLETOWNPA18058(610) 681-4243MONROE
COASTAL DRILLING EAST, LLC130 MEADOW RIDGE ROAD MT MORRISPA15349(304) 291-0175GREENE
COFFIN1667 OLD STATE ROAD WATERFORDPA16441(814) 882-0562ERIE
COLE'S CLEAR WATER WELL SERVICE INC.280 CHARLES COLE ROAD DERIDDER LA70634(337) 328-7129 
COLEMAN WATER SERVICES14022 COLEMAN ROAD MEADVILLEPA16335(814) 382-8004 
CONNECTICUT TEST BORINGS LLC4 GOFFIN CT. OXFORDCT06478(203) 888-3857 
CONNELLY & ASSOCIATES ,INC260 INTERSTATE CT. FREDERICKMD21704(301) 696-8820 
CONNER WATER WELL DRILLING12267 US ROUTE 422 KITTANNINGPA16201(724) 548-1872ARMSTRONG
CONSTRUCTION SERVICES INTERNATIONAL, INC.115 MEMORY LANE TELFORDPA18969(215) 703-0833MONTGOMERY
COUDERSPORT WELL DRILLING INC.9 BUFFALO ST COUDERSPORTPA16915(814) 274-7720POTTER
CRESSWELL DRILLING CO INCPO BOX 680DALTONPA18414(570) 563-1123LACKAWANNA
CRIBBS & ASSOCIATES, INC.PO BOX 44 DELMONTPA15626(724) 454-2310WESTMORELAND
CURSI DRILLING COMPANY, INC.34 ONTARIO MINE RD SCENERY HILLPA15360(724) 945-5454WASHINGTON
CVM INDUSTRIES2480 INVERNESS LN PO BOX 2HUNTINGDON VALLEYPA19006(215) 947-2555MONTGOMERY
DAVE WALKER WELL DRILLING & PUMP SERVICE6346 E LAKE RD JAMESTOWNPA16134(724) 927-9706CRAWFORD
DAVID LEONARD WATER WELL DRILLING CO.75 CHELSEA LANE BRADFORDPA16701(814) 368-8660MCKEAN
DAVID WEBER WELL DRILLING100 LAKE RDSHOHOLAPA18458(570) 296-6600PIKE
DENNIS DAVIS DRILLING255 SIMON DR BUTLERPA16002(724) 285-8874BUTLER
DEPOSIT WELL DRILLING 1083 COUNTY HWY 20 DEPOSITNY13754(607) 467-2110 
DILLAN WELL DRILLING INC3540 DARLINGTON RDDARLINGTONPA16115(724) 827-2990BEAVER
DINKELACKER ENTERPRISE INC.179 ROTOWANIS RD. DRUMSPA18222(570) 788-2500LUZERNE
DIRECTED TECHNOLOGIES DRILLING, INC.100 ROLLING RIDGE DRIVE BELLEFONTEPA16823(814) 355-2088CENTRE
DIRECTIONAL TECHNOLOGIES, INC.77 N PLAINS INDUSTRIAL ROAD WALLINGFORDCT06492(203) 294-9200 
DON ARMSTRONG WELL DRILLING, LLC2947 BLACK SEA ROAD JEFFERSONOH44047(440) 294-2016 
DRAKE WELL DRILLING, INC.141 TUNNEL HILL RD FACTORYVILLEPA18419(570) 945-3194WYOMING
DUANE MOYER WELL DRILLING336 GILBERTS HILL RD LEHIGHTONPA18235(570) 386-5508CARBON
DUNCAN BROS DRILLING INC1264 HOWELL AVE. EAST PALESTINEOH44413(330) 426-9507 
EAKMAN358 WIND RD DAYTONPA16222(814) 257-8748ARMSTRONG
EARTH ENERGY CONNECTIONS OF PA399 WESTOVER RD WESTOVERPA16692(814) 934-1341CLEARFIELD
EARTHSYSTEMS, LLC11 OAK ROAD GIBSONIAPA15044(724) 443-0818ALLEGHENY
EAST COAST DRILLING INC1256 N CHURCH ST MOORESTOWNNJ08057(856) 722-1111 
EDWARD M ARNOLD DRILLING CONTRACTOR95 PINE FORGE RD DOUGLASSVILLEPA19518(610) 689-5636BERKS
EDWARD POWELL PUMP & WELL DRILLING INC17-B MOUNT PLEASANT DRASTONPA19014(610) 459-1098DELAWARE
EICHELBERGERS INC.107 TEXACO ROAD MECHANICSBURGPA17050(717) 766-4800CUMBERLAND
ELMER STEWART DRILLING781 DEAN ROAD NEW CASTLEPA16101(724) 658-4488LAWRENCE
ENLINK GEOENERGY SERVICES, INC.ENLINK GEOENERGY SERVICES, INC. 2630 HOMESTEAD PLACERANCHO DOMINGUEZCA90220(424) 242-1205 
ENVIRONMENTAL MANAGEMENT ASSOCIATES5303 SR 33/34FARMINGDALENJ07727(732) 919-0595 
ENVIRONMENTAL PROBING INVESTIGATIONS INC16 HORNERSTOWN ROADCREAM RIDGENJ08514(609) 758-9000 
ENVIROPROBE SERVICE, INC.908 N LENOLA ROAD MOORESTOWNNJ08057(856) 858-8584 
EPPINGER WELL DRILLINGPO BOX 365 NEW BEDFORDPA16140(724) 964-8170LAWRENCE
EVANS WELL DRILLING8130 OLD STATE RD CRANESVILLEPA16410(814) 734-8730ERIE
F E BUEHLER & SON, INC.1303 EASTON RDWARRINGTONPA18976(215) 343-0550BUCKS
F M & W DRILLING INC515 WELLFLEET RDCINNAMINSONNJ08077(856) 829-0410 
FERRIS COMPANY LLC900 BENNICOFF ROAD KUTZTOWNPA19530(610) 504-5011BERKS
FRAME DRILLING CO., INC.PO BOX 1907 ELKINSWV26241(304) 636-6025 
FRANK G WILSON JR WELL DRILLING--MARK R IRVIN415 BEN-WENK RDASPERSPA17304(717) 677-6591ADAMS
FRANK WILSON JR WELL DRILLING415 BEN-WENK RD ASPERSPA17304(717) 677-6591ADAMS
FRED ALBRIGHT WELL DRILLINGP O BOX 231 HOLLIDAYSBURGPA16648(814) 695-6937BLAIR
FREDERICK DRILLING CO AND SONS INCPO BOX 66 18 PIPER LANETYLERSBURGPA16361(814) 744-8581CLARION
FRESHWATER WELL AND PUMP SERVICEPO BOX 468FRENCHTOWNNJ08825(908) 996-3299 
FREY WELL DRILLING INC.11565 BROADWAY ALDENNY14004(716) 937-7977 
FRITZ BROS INC100 CLIFF STHONESDALEPA18431(570) 253-2660WAYNE
FRONTZ DRILLING INC.2031 MILLERSBURG ROADWOOSTEROH44691(330) 262-5301 
G AND R WESTBROOK WELL DRILLING INC.562 EAST OLD YORK RD BOILING SPRINGSPA17007(717) 258-6403CUMBERLAND
GEO CLIMATE CONTROL INC.70 BENNETT STREET DANVILLEPA17821(570) 275-5315MONTOUR
GEO-ENVIRONMENTAL DRILLING CO INC233 BODA ROAD VERONAPA15147(412) 712-1035ALLEGHENY
GEO-TECHNOLOGY ASSOCIATES, INC.3445-A BOX HILL CORP CENTER DR. ABINGDONMD21009(410) 515-9446 
GEOLOGIC NY, INC.PO BOX 350 HOMERNY13077(607) 749-5000 
GEORGE PATTERSON DRILLING3536 STATE RD NEW CASTLEPA16101(724) 654-8124LAWRENCE
GEOSEARCH, INC.20 AUTHORITY DRFITCHBURGMA01420(978) 348-1989 
GEOSYSTEMS INC.6720 FT SMALLWOOD RD BALTIMOREMD21226(410) 789-5020 
GEOTHERMAL LOOP INSTALLATIONS2705 CRAIG AVE WEST LAWNPA19609(484) 256-4403 
GERALD W. CLARK WELL DRILLING, INC.16 STATE STREET PO BOX 248EVERETTPA15537(814) 652-5733BEDFORD
GILL ROCK DRILL CO INC903-905 CORNWALL RDLEBANONPA17042(717) 272-3861LEBANON
GREEN TEAM CONTRACTORSPO BOX 423 BARTONSVILLEPA18321(570) 851-2090 
GROUNDWATER RESOURCES LLC23074 STATE HIGHWAY 198 SAEGERTOWNPA16433(814) 720-1212CRAWFORD
GURVIS JONES WELL DRILLING INC1220 PROSPECT MILL RD BEL AIRMD21015(410) 838-6747 
H & H WELL DRILLING, LLCPO BOX 318 CLEAR SPRINGMD21722(301) 842-3563 
H & M WELL DRILLING INC334 BLOODY SPRING RDBERNVILLEPA19506(610) 488-9300BERKS
H.A.D. INC.9797 BENNER RDRITTMANOH44270(330) 925-1000 
HAEFNER DRILLING, LLC110 CAROMAR DRIVE MARSPA16046(724) 935-2888BUTLER
HARRISBURG'S KOHL BROS INCPO BOX 4195 1000 S 21ST STHARRISBURGPA17111(717) 236-9415DAUPHIN
HARRY E DAVIS & SONS INC270 MUSHRUSH RD BUTLERPA16002(724) 285-6223BUTLER
HAVENS WELL DRILLING725 OLD KENNEDY ROAD TROYPA16947(570) 297-2397BRADFORD
HawkMtn Lab, Inc.201 W CLAY AVE HAZLE TOWNSHIPPA18202(570) 455-6011 
HESS WELL DRILLING, INC.8056 ROUTE 549 MILLERTONPA16936(570) 537-2347TIOGA
HILL WELL DRILLING, INC.157 VANDINE ROADMUNCYPA17756(570) 546-6353LYCOMING
HOFES WELL DRILLING3271 BUTLERS CHAPEL RD MARTINSBURGWV25403(304) 754-3961 
HOLT DRILLING--DIVISION OF ROMIDA INC.PO BOX 53 7344 ROUTE 219BROCKWAYPA15824(814) 265-8981JEFFERSON
HOOK WELL DRILLING INC.408 FALLSDALE ROAD TYLER HILLPA18469(570) 729-7870WAYNE
HOWARD CONCRETE PUMPING COMPANY INC701 MILLERS RUN RD CUDDYPA15031(412) 257-1800ALLEGHENY
HUBLER & CAMPBELL WELL DRILLING20064 RT. 75 SOUTH PORT ROYALPA17082(717) 527-4450JUNIATA
HUDSON VALLEY DRILLING INC.2177 ROUTE 94 SALISBURY MILLSNY12577(845) 496-2131 
HULL'S WELL DRILLING, LLC1257 NITTANY VALLEY DR BELLEFONTEPA16823(814) 383-4049CENTRE
IVYLAND WELL & PUMP SERVICE, LLC666 JACKSONVILLE ROAD IVYLANDPA18974(267) 567-3882BUCKS
J & H DRILLING3510 MARRIAN RD. DORSETOH44032(440) 858-2329 
J D JOHNSON WELL DRILLING & PUMPS13425 BEDFORD ROAD NE CUMBERLANDMD21502(301) 777-9355 
J REHO & SONS620 MT ETNA RD SMITHTONPA15479(724) 872-7815WESTMORELAND
JACK MELTON892 BEAR MEAT RD HIAWASSEEGA30546(865) 201-9929 
JACK ZIEGLER WELL DRILLING INC71 ZIEGLER DR PO BOX 99STERLINGPA18463(570) 689-2472WAYNE
JACKSON & SONS DRILLING & PUMP INC.3401 ST RT 13 SOUTH MANSFIELDOH44904(419) 756-2758 
JACKSON GEOTHERMAL HVAC & DRILLING LLC608 NOLAN AVEMORRISVILLEPA19067(215) 295-2823BUCKS
JACOBS DRILLING SERVICES LLCP O BOX 154 FAIRCHANCEPA15436(724) 564-4399FAYETTE
JEFF C PYLE WELL DRILLING551 EGOLF RD BEDFORDPA15522(814) 847-2668BEDFORD
JERNIGAN'S ENVIRONMENTAL SERVICES, INC.22725 STEVENSON ROAD SMITHSBURGMD21783(301) 790-0450 
JM2 ENVIRONMENTAL INC DBA KODIAK FIELD SERVICESPO BOX 183SHEAKLEYVILLEPA16151(724) 253-2411MERCER
JOE MURPHY DRILLING225 EAST SHORE DRIVE THOMPSONPA18465(570) 756-3763SUSQUEHANNA
JONATHAN DAVID JOHNSON13425 BEDFORD ROAD, NE CUMBERLANDMD21502(301) 777-9355 
JONES1392 CHROME HILL ROAD JARRETTSVILLEMD21084(410) 836-6940 
JONES4 N OLD TURNPIKE RD PO BOX 153DRUMSPA18222(570) 788-4615LUZERNE
JOSEPH NEBEL SONS546 BONNY BROOK ROAD BUTLERPA16002(724) 283-2253BUTLER
JOSEPH T. HARDY & SON, INC.425 OLD AIRPORT RD NEW CASTLEDE19720(302) 328-9457 
K.L. MADRON WELL DRILLING, LLCPO BOX 578 AVONDALEPA19311(610) 444-4500CHESTER
KETTLE CREEK WELL DRILLING & SERVICE12 MAIN ST CROSS FORKPA17729(570) 923-0206POTTER
KNIGHT WELL DRILLING INCP O BOX 642 ROUTE 507 GOULDSBOROPA18424(570) 842-8142WAYNE
KOCHER'S WATER PUMPS & TANKS, INC.2786 W BEERSVILLE RD. BATHPA18014(610) 837-8226NORTHAMPTON
KOHL BROS., INC.5 E. MUTH AVE P O BOX 350MYERSTOWNPA17067(717) 866-2161LEBANON
KUSER WELL DRILLING1827 SR14 APT. 1ROARING BRANCHPA17765(570) 673-8189TIOGA
L B DAVIS WATER WELL DRILLING1070 S KENDALL AVENUE BRADFORDPA16701(814) 465-3573MCKEAN
L G HETAGER DRILLING INC1857 WOODLAND AVE. EXT. PUNXSUTAWNEYPA15767(814) 938-7370JEFFERSON
L. FRANKLIN EASTERDAY INC9265 BROWN CHURCH RDMT AIRYMD21771(301) 829-1640 
LANCASTER THERMAL LLC116B 28TH DIVISION HIGHWAY LITITZPA17543(717) 490-4043LANCASTER
LAYNE CHRISTENSEN COMPANYRT 30 PO BOX 917SCHOHARIENY12157(518) 295-8288 
LEEDS WELL DRILLING324 CINDER RD NEW PROVIDENCEPA17560(717) 548-2983LANCASTER
LEIB WELL DRILLING INC293 TIELMAN RD ASHLANDPA17921(570) 875-3808SCHUYLKILL
LEIGHTON DRILLING CO LLC111 GRAHAM ROAD KITTANNINGPA16201(724) 548-1083ARMSTRONG
LENHART WELL DRILLING INC4286 STATE ROUTE 130 STAHLSTOWNPA15687(724) 593-2605WESTMORELAND
LEONARD M. BORGER INC.465 SILVERSPRINGS BLVD. KUNKLETOWNPA18058(610) 381-3727MONROE
LITZENBERG DRILLING, INC.875 HOOKER RD KARNS CITYPA16041(724) 894-2776BUTLER
LOUIS HEINTZ WELL DRILLING INC1626 BECKER RD GREEN LANEPA18054(215) 234-4700MONTGOMERY
LUTZ ENVIRONMENTAL CO., INC.2020 CLINTON ST PO BOX 1247LINDENNJ07036(908) 862-6633 
M & K WELL SERVICEPO BOX 158 ROUSEVILLEPA16344(814) 677-7578VENANGO
M & R SOIL INVESTIGATIONS INC6604 DELILAH ROAD, SUITE 3 EGG HARBOR TWPNJ08234(609) 677-9797 
MAJOR DRILLING ENVIRONMENTAL LLC156B IMPORT CIRCLE HUNTSVILLEAL35806(256) 852-7000 
MATT ALBRIGHT WELL DRILLING203 LOVE ROAD VALENCIAPA16059(609) 947-5296BUTLER
MAYER'S WELL DRILLINGPO BOX 24 PENNSBURGPA____1(215) 679-7817MONTGOMERY
MAYNARD'S PUMP SERVICE13373 ROUTE 220 TOWANDAPA18848(570) 265-7167BRADFORD
MAYS WELL DRILLINGPO BOX 35 MT. AETNAPA19544(717) 933-4639BERKS
MCCRAY WELL DRILLING11567 E PLEASANT ST CORRYPA16407(814) 664-4525ERIE
MCKAY & GOULD DRILLING, INC.267 TAGGART RDDARLINGTONPA16115(724) 436-6823BEAVER
MCMICHAEL AND SON8 CHERRY TREE LANE NAPLESFL34114(888) 204-3907 
MCWILLIAMS WELL DRILLING245 SHEESLEY RD MIFFLINTOWNPA17059(717) 436-9140JUNIATA
MEINERT WELL DRILLING INC.468 PERRY HIGHWAY HARMONYPA16037(724) 452-8337BUTLER
MERSINO DEWATERING, INC600 W DRYDEN RD METAMORAMI48455(810) 678-8085 
MESSINA'S WATERWELL DRILLING & SERVICE20189 HATCHTOWN RD SPARTANSBURGPA16434(814) 654-7134CRAWFORD
MILLER DRILLING303 BOCKTOWN CORK RD ALIQUIPPAPA15001(724) 375-8532BEAVER
MILLS WELL DRILLING, LLC25 RANDY LANECOCHRANVILLEPA19330(610) 869-9482CHESTER
MINICHI INC453 ZIEGLER ST DUPONTPA18641(570) 654-8332LUZERNE
MINOR WELL DRILLING129 WILSON RD CLINTONPA15026(724) 378-0827BEAVER
MODERN PUMP & EQUIPMENT, INCPO BOX 200 LIVERPOOLPA17045(717) 444-2200PERRY
MOHR WELL DRILLING, INC234 S MAYSVILLE RD GREENVILLEPA16125(724) 588-8322MERCER
MOODY AND ASSOCIATES INC11548 COTTON ROAD MEADVILLEPA16335(814) 724-4970CRAWFORD
MOORE DRILLING DBA FORSYTH DRILLING INC.2750 OKLAHOMA-SALEM RD DUBOISPA15801(814) 371-7960CLEARFIELD
MORETRENCH AMERICAN CORPORATION100 STICKLE AVE ROCKAWAYNJ07866(973) 627-2100 
MORRISON EXCAVATING INC63 GAMBERS CORNER RD DUNCANNONPA17020(717) 834-5667PERRY
MOUNTAIN RESEARCH LLC825 25TH ST ALTOONAPA16601(814) 949-2034BLAIR
MYERS BROS DRILLING CONTRACTORS INC54 HOLLAND ST SALUNGAPA17538(717) 898-2321LANCASTER
MYERS DRILLING INC.22 HENDRICK LANE CARBONDALEPA18407(570) 282-3000LACKAWANNA
MYERS WATER WELLS85 COLEMAN ROAD SLIGOPA16255(814) 745-2246CLARION
NATCHER DRILLING INC393 MUNICIPAL RD EBENSBURGPA15931(814) 472-6636CAMBRIA
NEFF BROS. WATER WELL DRILLING132 MANCULICH LN CHICORAPA16025(724) 712-9357BUTLER
NEGLEY'S WELL DRILLING, INC.16199 CUMBERLAND HWY NEWBURGPA17240(717) 532-9190FRANKLIN
NEW WAY DRILLING INC285 HINAMAN HOLLOW LANE JERSEY SHOREPA17740(570) 745-7131LYCOMING
NGE, LLC171 MONTOUR RUN RD MOON TOWNSHIPPA15108(304) 201-5180 
NITTANY GEOTHERMAL1901 E COLLEGE AVE STATE COLLEGEPA16801(814) 571-8457CENTRE
NORTHEAST GEOTHERMAL SERVICES, INC.2746 W COLLEGE AVE. STATE COLLEGEPA16801(814) 867-0508CENTRE
NORTHEAST REGIONAL PROBING INCPO BOX 9676 NEWARKDE19714(302) 454-8974 
NOTHNAGLE DRILLING, INC.1821 SCOTTSVILLE MUMFORD RD SCOTTSVILLENY14546(585) 538-2328 
ODYSSEY ENVIRONMENTAL SERVICES, INC.6130 OLD JONESTOWN RD. HARRISBURGPA17112(717) 561-0013DAUPHIN
OSCAR L. DE ARMIT DRILLING & PUMP CO. INC.3221 W. PINE GROVE ROAD P.O. BOX 97PA FURNACEPA16865(814) 692-4324CENTRE
PARKER BROTHERS WELL DRILLING INC6075 E STATE ST HERMITAGEPA16148(724) 346-4141MERCER
PARRATT-WOLFF INC5879 FISHER RD PO BOX 56E SYRACUSENY13057(315) 437-1429 
PATTON WELL DRILLING6810 CORNELL ROADBALTIMOREMD21220(410) 592-8662 
PEFFER DRILLING166 POWERS CROSSROAD RD RURAL VALLEYPA16249(724) 783-7652ARMSTRONG
PENNSYLVANIA DRILLING COMPANY281 ROUTE 30 IMPERIALPA15126(724) 695-2400ALLEGHENY
PENNSYLVANIA TECTONICS, INC.723 N MAIN STREET ARCHBALDPA18403(570) 487-1959LACKAWANNA
PETER A KESTLER WELL DRILLING109 KESTLER KNAPP LN SHOHOLAPA18458(570) 559-7596PIKE
PETERSHEIM BROS., INC.PO BOX 98 229 MILL ROADMORGANTOWNPA19543(610) 286-5850BERKS
PHARES FRY WELL DRILLING & PUMP SERVICE INC216 VIRGINVILLE RD HAMBURGPA19526(610) 562-8800BERKS
PROFESSIONAL ENTERPRISES INC.140 BUCKEYE ROAD KARNS CITYPA16041(724) 445-7064 
QUALITY INSPECTION SERVICES, INC.37 FRANKLIN STREET SUITE 400BUFFALONY14202(716) 853-2611 
R H ODENHEIMER CO2968 BETZ COURT OREFIELDPA18069(610) 395-6699LEHIGH
R L ZIMMERMANPO BOX 103 WEST MILTONPA17886(570) 568-0750UNION
R R KLING & SONS LLC aka PA GROUND SOURCE4522 N SHERMAN ST EXT MOUNT WOLFPA17347(717) 266-0700 
R. RINDFUSS DRILLING, L.P.13851 ROUTE 19 WATERFORDPA16441(814) 796-4693ERIE
RAAB WELL DRILLING, INC103 KELLERS CHURCH RD PERKASIEPA18944(215) 766-7860BUCKS
RANDLER'S WELL DRILLING INC20 R&H AVEDANVILLEPA17821(570) 437-2408MONTOUR
REITH BROS. INC5719 EMMAUS RD EMMAUSPA18049(610) 965-5692LEHIGH
REITH GEOTHERMAL ENERGY INC.4857 RAYMOND COURT EMMAUSPA18049(610) 967-1471LEHIGH
REYNOLDS, INC.4520 N STATE ROAD 37ORLEANSIN47452(812) 865-3232 
RICE WELL DRILLING33874 BROWNHILL ROAD UNION CITYPA16438(814) 694-3315CRAWFORD
RITCHEY WELL DRILLING855 VALLEY FORGE RD DUNCANSVILLEPA16635(814) 695-1492BLAIR
ROBERT E SNYDER445 DEER CREEK RDSAXONBURGPA16056(724) 352-4352BUTLER
ROGERS WELL DRILLING1720 KELLYBURG ROAD TROUT RUNPA17771(570) 995-9318LYCOMING
RON MITCHELL WELL DRILLING4100 SYCAMORE DR NORTHAMPTONPA18067(610) 767-8252NORTHAMPTON
RONALD MYERS INC1845 STAIRVILLE RD WAPWALLOPENPA18660(570) 868-5168LUZERNE
ROSEBUD MINING COMPANY1117 SHAW MINES ROAD MEYERSDALEPA15552(814) 634-5981SOMERSET
ROY G. KOCHER'S WELL DRILLING141 S. MAIN ST APT 2NAZARETHPA18064(610) 365-8445NORTHAMPTON
RUMSEY WELL DRILLING937 W GEORGE ST PEN ARGYLPA18072(610) 863-9303NORTHAMPTON
RUNKS DIGGIN--HAULIN--WELL DRILLIN AND PUMP SERVICE3584 RUNK BROTHERS LN. JAMES CREEKPA16657(814) 658-3274HUNTINGDON
S & S SUBSURFACE INVESTIGATIONS, INC.24 HAGERTY BLVD STE #11 WEST CHESTERPA19382(610) 738-8762CHESTER
S2C2 INC.5 JOHNSON DR STE 12 RARITANNJ08869(908) 253-3200 
SADOWSKI WELL DRILLING474 SR 4013 COWANSVILLEPA16218(724) 545-6288ARMSTRONG
SAIC491L BLUE EAGLE AVE. HARRISBURGPA17112(717) 901-8891DAUPHIN
SAMUEL STOTHOFF COMPANY INCPO BOX 306 59 STATE HIGHWAY 31FLEMINGTONNJ08822(908) 782-2116 
SAXTON WELL SERVICE, INC.509 GERMAN HILL RD TIONESTAPA16353(814) 755-4946FOREST
SBI ENVIRONMENTAL WELL DRILLING INC17 DEMAREST DR WAYNENJ____0(973) 305-0022 
SEDDON'S WELL DRILLING95 DEER CREEK ROAD SANDY LAKEPA16145(724) 376-2310MERCER
SENEX EXPLOSIVES, INC.710 MILLERS RUN ROADCUDDYPA15031(412) 221-3218ALLEGHENY
SENSENIG & WEAVER WELL DRILLING1439 DRY TAVERN RDDENVERPA17517(717) 445-5573LANCASTER
SGS ENVIRONMENTAL SERVICES INC328 STAFFORD FORGE RD PO BOX 423WEST CREEKNJ08092(609) 294-1110 
SHELHAMER SONS INC306 W BUTLER DRIVE DRUMSPA18222(570) 788-2704LUZERNE
SHIFFER DRILLING INC.244 CEMETERY HILL RD HERNDONPA17830(570) 758-3143NORTHUMBERLAND
SHOOPS WELL DRILLING 263BRITCHER DR MIFFLINTOWNPA17059(717) 436-6796JUNIATA
SMITH DRILLING4556 RAMSAYTOWN RD BROOKVILLEPA15825(814) 938-4449JEFFERSON
SMITH DRILLING CONTRACTORS INC.PO BOX 213 775 PYRAMUS STCHESTERWV26034(304) 387-0127 
SORBER WELL DRILLING204 NIEMCHIK RD HUNLOCK CREEKPA18621(570) 477-5393LUZERNE
SPERRY DRILLING INC--JUDITH A. BIRD1023 CUMBERLAND HWY BERLINPA15530(814) 267-3487SOMERSET
SPRENG AND SONS WATER WELL DRILLING141 BOWER RD VALENCIAPA16059(724) 898-3067BUTLER
STACKHOUSE & SON INC6 BLACK RUN RD BLOOMSBURGPA17815(570) 784-5034COLUMBIA
STIFFY'S WELL DRILLING SERVICES220B OLD ASH RD MERCERPA16137(724) 748-4673MERCER
STOTHOFF815 WOODWARD ST BALTIMOREMD21230(410) 483-2200 
STOVER'S WELLS & PUMPS, INC.161 HWY 202 RINGOESNJ08551(908) 782-5374 
SUBSURFACE ENVIRONMENTAL TECHNOLOGIES LLC19 BROOKSIDE AVE. PENNINGTONNJ08534(609) 730-0005 
SUBSURFACE INC.PO BOX 359GAULEY BRIDGEWV25085(304) 632-1998 
SUBSURFACE TECHNOLOGIES INC.40 STONE CASTLE ROAD ROCK TAVERNNY12575(845) 567-0695 
SUMMIT DRILLING CO INC81A CHIMNEY ROCK ROAD BRIDGEWATERNJ08807(908) 722-4266 
SWANK & SON PUMP CO, INC.1412 MONTOUR BLVD PO BOX 235DANVILLEPA17821(570) 275-1292MONTOUR
T W CUMMINGS WELL DRILLING418 FRANKLIN ROAD TOWANDAPA18848(570) 265-3895BRADFORD
TABASCO DRILLING CORPORATIONP O BOX 1676MT LAURELNJ08054(856) 722-5593 
TALON DRILLING COMPANY100 LEXINGTON AVE TRENTONNJ08618(609) 538-0580 
TERRA TESTING, INC.260 MEADOWLANDS BLVD. WASHINGTONPA15301(724) 746-9100WASHINGTON
TERWILLIGER'S, LLC2499 ADDISON ROAD PAINTED POSTNY14870(607) 359-3739 
TEST BORING SERVICES, INC.140 MONG RD SCENERY HILLPA15360(724) 267-4649WASHINGTON
THE OHIO DRILLING COMPANY2405 BOSTIC BLVD SW MASSILLONOH44647(330) 832-1521 
THE ROBERT B BALTER COMPANY18 MUSIC FAIR RD OWINGS MILLSMD21117(410) 363-1555 
THOMAS G KEYES INC453 LANCASTER PIKE PO BOX 817FRAZERPA19355(610) 644-2886CHESTER
THOMAS W DUNN WELLS & PUMPS29 DUNN LANE MONROETONPA18832(570) 364-5522BRADFORD
THREE-D DRILLING, INC.2839 DOGTOWN RD.REEDSVILLEWV26547(304) 864-3755 
TPI ENVIRONMENTAL, INC.45 TAMARACK DR CARVERSVILLEPA18913(888) 204-3266BUCKS
TRC ENGINEERS, INC.1604 INDUSTRIAL HIGHWAYCINNAMINSONNJ08077(856) 829-3274 
TRI-CO WATER1482 JEFFERSON RD JEFFERSONPA15344(724) 883-4883GREENE
TRI-STATE DRILLINGPO BOX 10395 ERIEPA16514(814) 899-5454ERIE
TRISTATE ENVIRONMENTAL MANAGEMENT SERVICES INC368 DUNKS FERRY RD BENSALEMPA19020(215) 638-4338BUCKS
TTL ASSOCIATES INC.1915 NORTH 12TH ST TOLEDOOH43604(419) 241-0138 
UNI-TECH DRILLING CO INCPO BOX 407 FRANKLINVILLENJ08322(856) 694-4200 
UNITED STATES GEOLOGICAL SURVEYBOX 25046, MAIL STOP 911 DENVERCO80225(303) 403-0405 
US EPA919 KERR RESEARCH DR ADAOK74820(580) 559-1716 
W H VANDERHOOF DRILLING CO.48 CAMPTOWN ROADWAVERLYNY14892(607) 565-4217 
WALTERS WELL DRILLING21439 MAIN ST. SHADE GAPPA17255(814) 259-3159HUNTINGDON
WAYNE E HARLEY WELL DRILLING4019 BAPTIST RD TANEYTOWNMD21787(410) 756-2551 
WAYNE'S WATER 'N' WELLS INC19139 GARRETT HIGHWAY OAKLANDMD21550(301) 387-7181 
WDC EXPLORATION AND WELLS8811 ROBBINS ROAD INDIANAPOLISIN46280(317) 872-1203 
WEAVERS WELL DRILLING, LLC145 LYONS ROAD WEST ALEXANDERPA15376(724) 663-5209 
WELSH WELL DRILLING11597 COUNTY ROUTE 119 ADDISON NY14801(607) 359-3869 
WESTBROOK WELL DRILLING 12 EVANS RD CHARLEROIPA15022(724) 239-5038WASHINGTON
WHISLERS WELL DRILLING INC366-1 GREEN SPRING ROAD NEWVILLEPA17241(717) 776-6211CUMBERLAND
WILLEY WELL DRILLING INC.PO BOX 30 FREEDOMNY14065(716) 492-3930 
WILLIAM STOTHOFF CO INC110 RIVER RD FLEMINGTONNJ08822(908) 782-2717 
WILLIAM T MARTIN WELL DRILLING INC3927 SCHOOL ROAD SOUTH JEANNETTEPA15644(724) 327-3900WESTMORELAND
WILLIAMS DRILLING838 ROUTE 6 SHOHOLAPA18458(570) 409-9355PIKE
WILSON CONSULTING182 MALLORY LANE MINERAL POINTPA15942(814) 749-9425CAMBRIA
WOLFE WELL DRILLING2044 STATE ROUTE 2023 CLIFFORD TOWNSHIPPA18421(570) 222-3751SUSQUEHANNA
WONSIDLER WELL DRILLING INC1885 TRUMBAUERSVILLE RD QUAKERTOWNPA18951(215) 536-5468BUCKS
WRIGHT'S WELL SERVICE701 STEUBENVILLE PIKE BURGETTSTOWNPA15021(724) 947-4276WASHINGTON
ZEBRA ENVIRONMENTAL CORP.30 N PROSPECT AVE LYNBROOKNY11563(516) 596-6300 
ZECHMAN WELL DRILLING197 HARTMAN RD MIDDLEBURGPA17842(570) 837-6763SNYDER