Annual Report

OF THE

State Mine Inspector State of Arizona

For the year ending November 30,1977 Sixty-Sixth

ANNUAL REPORT '

of the STATE MINE INSPECTOR

FOR THE YEAR ENDING NOVEMBER 30.1977

- DEPARTMENT OF - ,5--9m I\! 11 B Riw034i v ES H~bkIWdayBdin Govanor of the State of Muma Phoenix, Arizom 85007

I am pkmd to abmit hadlh, the Skty4klb Amnrl Report of the Arkaar State Mine Inspector for the ysrr bc#miag Deambsr 1,1976 md eading Ncnmber 30, 1977.

Thctsport~nmrsrmdd~Ofrllmlwr,n9hrmslaan,drmdd giavel opentiom in Adtonr. namba of employas, miaenh pmducd, number md desuiptiom of fatd acdents .ad nomba md aore of lost time acddmtr in our mima SIXTY-SIXTH ANNUAL REPORT 1

MAILING ADDRESSES OF MAJOR MINING COMPANIES

Anarnax Mming Company Cypms Mmn Corporation Twin ButtesMine Arizona Operations P.O. Box 127 2343 E. Broadway Sahuarita, Arizona 85629 Suite 207 Tucson, Arizona 857 19 Arizona Portland Cement Company Rillito Pit and Plant Cyprus Bagdad Copper Company P.O. Box 338 P.O. Box 245 Rillito, Arizona 85246 Bagdad, Arizona 8563 1 Cyprus Johnson Copper Company ASARCO, Inc. P.O. Drawer "R General Offices Benson, Arizona 85602 1150 N. 7th Ave. P.O. Box 5795 Cyprus Pima Mining Company Tucson, Arizona 85703 P.O. Box 7 187 Tucson, Arizona 85725 Hayden Unit Box 98 Hayden, Arizona 85235 Dwal Cmtion Tucson Office Mission Unit 47 15 E. Ft. Lowell Road Box 11 Tucson, Arizona 857 12 Sahuarita, Arizona 85629 Mineral Park Division Sacaton Unit P.O. Box 1 27 1 P.O. Box v Kingman, Arizona 85401 Casa Grande, Arizona 85222 Esperanza and Sierrita Roperties Silver Bell Unit P.O. Box 125 Silver Bell, Arizona 85270 Sahuarita, Arizona 85629

The Flintkote Company Cities Service Company U.S. Lime Products Division Miami Operations P.O. Box 197 P.O. Box 100 Peach Springs, Arizona 86434 Miami, Arizona 85539 Hecla Mining Company Pinto Valley Operations Lakeshore Mine P.O. Box 727 P.O. Box 493 Miami, Arizona 85539 Casa Grande, Arizona 85222 2 SIXTY-SIXTH ANNUAL REPORT

Inspiration Co~soI'ited National Gypsum Company (cont) Copper Company Wikelman Gypsum Pit Phoenix Office Star Route, Box 89 100 W. Washington Winkelman. Arizona 85292 First National Bank Ilaza Phoenix, Arizona 85003 Can-Am Corpomtion Inspiration Office Paul Lime Division Inspiration, Arizona 85577 Drawer T Douglas, Arizona 85607

Jaquays Miniig Corporation Box 328 Peabody Coal comprny Globe, Arizona 85501 Black Mesa r 1 P.O. Box 605 Kayenta, Arizona 86033 Kennecott Copper Corporation Ray Mines Division Kaymta Mine Hayden, Arizona 85235 P.O. Box 606 Kayenta, Arizona 86033

Magma Copper Company San Manuel Division Phdps Dodge Corporation Box M Western Operations Office San Manuel. Arizona 85631 Box 1238 Douglas, Arizona 85607 Superior Division P.O. Box 37 Douglas Reduction Works Superior. Arizona 85273 Drawer E Douglas, Arizona 85607

McFdand & Hulinger Copper Queen Branch Winkelnun Plant Bisbee, Arizona 85603 P.O. Box 8 1 1 Tucson. Arizona 85702 Morenci Branch Morenci, Arizona 85540 Hayden Quarry Hayden. Arizona 85735 New Cornelia Branch Ajo, Arizona 85321

National Gypsum Company Safford Branch P.O. Box $0863 Box 151 Phoenix, Arizona 85036 Safford, Arizona 85546 SIXTY-SIXTH ANNUAL REPORT 3

Phoenix Cement Comp~ny Superior Companies (cont) Division of Amwrd Inc. Drake Plant P.O. Box 302 Phoenix Office Paulden, Arizona 86334 3550 N. Central Ave. Suite 1501 Phoenix, Arizona 8501 2 Larson Gypsum P.O. Box 786 Clarkdale Plant Camp Verde, Arizona 86332 P.O. Box 428 Clarkdale, Arizona 86324 Wmkelman Gypsum P.O. Box 327 Rmchen Explontion & Winkelman, Arizona 85292 DHdopmmt Company Bluebird Mine Tonto Mii& Mining Conrprny P.O. Box 880 Box 275 Miami, Arizona 85539 Tonto Basin. Arizona 85553

Soperior compcmics Cordon w.imnikt - Cantmctw 2402 S. 19th Ave. P.O. Box C Phoenix, Arizona 85009 Hayden, Arizona 85235 MINING OPERATIONS

Company Mine Name Character of Ore Agn\t Neuest Town County

Al Dot Eureka Iron Pyrite Claims C. Yaccoback Congress Yavapai American International Mining & Milling National Mine Mercury James Duncan Sunflower Maricopa Anamax Mining Company Twin Buttes Mill Copper P.A. Hodges Sahuarita Pima Twin Buttes l Adit Copper P.A. Hodges Sahuarita Pima Twin Buttes Open Pit Copper P.A. Hodges Sahuarita Pima Twin Buttes Oxide Plant Copper P.A. Hodges Sahuarita Pima Andrada Marble Company Andrada Crusher & Sacker Marble David Hartley Tucson Pima Andrada Marble Pit Marble David Hartley Tucson Pima Apple Mining Company, Inc. PumicelCinders Guy Apple Flagstaff Coconino Arizona Feldspar Corp. Taylor Mill Feldspar J. Eaton Kingman Mohave Taylor Mine Feldspar J. Eaton Kingman Mohave Arizona Mine Finders Billy Mack Mine Parker Yuma Arizona Portland Cement Co. Anamax Quarry Limestone F. Thornberry Rillito Pima Rillito Mill LimeICement F. Thornberry Rillito Pima Rillito Quarry Limestone F. Thornberry Rillito Pima Arizona Silica Sand Co. Houck Operation Silica Sand D. Fisher Houck Apache Arizona Western Mines Old Eagle Mine Gold/Silver W.R. Ewing Oracle Pinal ASARCO. lnc. Eisenhower Pit Copper P.A. Hodges Sahuari ta Pima Hayden Smelter Copper P.A. Hodges Hayden Gila Mission Mill Copper P.A. Hodges Sahuarita Pima Company Mine Name Character of Ore Agent Nearest Town County

ASARCO, Inc. (cont) Mission Open Pit Copper P.A. Hodges Sahuari ta Pima Sacaton Mill Copper P.A. Hodges Casa Grande Pinal Sacaton Open Pit Copper P.A. Hodges Casa Grande Pinal San Xavier Unit Copper P.A. Hodges Sahuarita Pima Silver Bell Mill Copper P.A. Hodges Silver Bell Pima Silver Bell Open Pit Copper P.A. Hodges Silver Bell Pima Beard Mining Company Taylor Mine Feldspar A1 Beard Kingman Mohave Bisbee Salvage & Equipment Cole, Campbell & Dallas Salvage Operation W. Gianetto Bisbee Cochise Boyles Brothers Drilling Co. Lakeshore Mine Copper S.L. Mathews Casa Grande Pinal Ray Pit Copper S.L. Mathews Kearny Pinal Buckeye Mica Company Buckeye Mica Mill Mica H.G. Smith Buckeye Maricopa Ted H. Burris Longhot Mine LeadlSilver T.H. Burris Arivaca Santa Cruz Canadian Mine Ltd. Twin Buttes Adit a 1 Copper P.A. Hodges Sahuarita Pima Can-Am Corporation Paul Lime Mill Lime B. Barbaro Douglas Cochise Paul Lime Quarry Limestone B. Rarbaro Douglas Cochise Capital & Resources International Ltd. Rebel Mine Silver D. Cannon Mayer Yavapai Catalina Marble Company Catalina Marble Quarry Marble D. Kellogg' Tucson Pima Cementation Company San Manuel a 3-A Shaft Copper C. Herford San Manuel Pinal Twin Buttes a 1 Adit Copper P. Hodges Sahuarita Pima Centennial Development Co. Lakeshore Shaft Copper H. Weiss Casa Grande Pinal Chance Mining & Milling Co. Chance Mine LeadiSilver H. Grim Willcox Cochise Company Mine Name Character of On Agent Nearest Town County

Cholla Construction Co. Union Carbide Chabozite Deposit Chabozite M. Grusendorf Bowie Cochise Cities Service Company Miami Copper Leaching Copper R.P. Hughes Miami Gila Miami East Mine Copper R.P. Hughes Miami Gila Old Dominion Shaft Copper R.P. Hughes Miami Gila Pinto Valley Mill Copper R.P. Hughes Miami Gila Pinto Valley Open Pit Copper R.P. Hughes Miami Gila City of Bisbee Queen Tunnel Tourist Attraction Charles Eads Bisbee Cochise Clark-Oliver Mining Co. Black Queen Mine Gold F. Clark/J. Oliver Apache Jct. Pinal Cobre bma Mining Company Middlemarch Mine CopperISilver Ueal Britton Pearce Cochise Congress Consolidated Gold Mine Company Congress Mine Gold J. Kleiner Congress Yavapai Continental Copper CO. Control Mine copper John Roscoe Oracle Pinal Copper Hills Silica Silica Charlie Nichols Globe Gila Cyprus Bagdad Copper Co. Bagdad Mill Copper R. Bogart Bagdad Yavapai Bagdad Open Pit Copper R. Bogart Bagdad Yavapai Electrowinning Aant Copper R. Bogart Bagdad Yavapai Cyprus Bruce Copper & Zinc Bruce Concentrator Copper K. Dyas Bagdad Yavapai Bruce Mine Copper K. Dyas Bagdad Yavapai Cyprus Johnson Copper Co. Johnson Ixaching Plant Copper J. Sierakoski Benson Cochise Johnson Pit Copper J. Sierakoski Benson Cochise Cyprus Metallurgical Process Corpora tion Copper EJ. Clugston Tucson Company Mine Name Churcter 01Ore Agent Ncrnst Town County

Cyprus Pima Mining Company Pima Mill Copper G.A. Komadina Tucson Pima Open Pit Copper G.A. Komadina Tucson Denning Mining Company Antelope Pit Silica V. Denning MY Dry Hills Association Mining Corporation Dry Hole .1,2&3 SilverlGold T. Colvin Tombstone Cochise Leaching Plant Silver T. Colvin Tombstone Cochise Duval Corporation Esperanza Mill Copper H.L. Shively Sahuarita Pima Esperanza Open Pit Copper H.L. Shively Sahuari ta Pima Mineral Park Mill Copper W. Roper Kingman Mohave Mineral Park Open Pit Copper W. Roper Kingman Mohave Duval Sierrita Corporation Sierrita Mill Copper H.L. Shively Sahuarita Pima Sierrita Open Pit Copper H.L. Shively Sahuarita Pima E.OJ. Mining Venture Heap Leaching & Strip Mining Gold/Silver E. Escapule Tombstone Cochise El Toro Mining Company Bond Group Mines Silica K. James Patagonia Santa CNZ El Toro Mine ColdlSilver K. James Patagonia Santa Cruz Eocene Research Eocene Research Plant GoldISilver H.A. Ghiringhelli Tombstone Cochise Filters International, Inc. Superior Perlite Mill Perlite N. Korhumel Superior Pinal Filtrol Corporation Cheto Mine * 2 Bentonite A. Jacks Sanders Apache A.J. Gilbert Const. Co. Don Luis Pit Silica A.J. Gilbert Don Luis Cochise Gilbert Silica Pit Silica A.J. Gilbert Warren Cochise lnspiration Pit Copper A.J. Gilbert Inspiration Gila Gold Cave Mine & Development Cave Mine GoldISilver Marvin Combs Elgin Cochise Company Mine Name Chuacter of Ore Agent Neuest Town County

Golden Belt Mines, Inc. Golden Belt Mill Gold/Silver/Lead M. Soriano Cleat or Yavapai Silver Cord Mine Gold/Silver/Lead H. Jawis Cleat or Yavapai Gulf American Mining Enter. Cat Pause Mine Rhyolite Phil Reinhardt Wickenburg Yavapai Hagerty Research & Develop. Pelican Mine Copper John Hagerty Prescot t Yavapai Happy Jack Mines, Inc. Happy Jack Mine Gold/Silver Harlo Jones Silver Bell Pima Harborlite Corporation Superior Plant Perlite Robert Blunt Superior Pinal L.W. Hardy, Company, Inc. Miami Copper Operations Turquoise L.W. Hardy Miami Gila Pinto Valley Turquoise Turquoise L.W. Hardy Miami Gila Harrison Western Corporation Sacaton Shaft Development B. McKinstry Casa Grande Pinal Yurna Zeolite Mine Zeolite R. LaChance Yuma Yuma Hecla Mining Company Lakeshore Mill Copper J.H. Hunter Casa Grande Pinal Lakeshore Mine Copper J.H. Hunter Casa Grande Pinal Hemphill Brothers, Inc. Silica Pit Silica J. Brewer Kingman Mohave Taylor Mill Feldspar J. Eaton Kingrnan Mohave Taylor Mine Feldspar A. Beard Kingrnan Mollave Hillside Mining Company Hillside Mine Gold/Silver L.D. Holland Apache Jct. Pinal lnspiration Cons. Copper Co. Christmas Mill Copper P. Richardson Winkelman Pinal Christmas Mine Copper G. Vailancourt Winkelman Pinal Christmas Open Pit Copper P. Richardson Winkelman Pinal Inspiration Concentrator Copper F. Monninger lnspiration Gila lnspiration Open Pit Copper F. Monninger lnspiration Gila lnspiration Smelter Copper F. Monningr lnspira t ion Gila Oxhide Pit & Leach. Plant Copper F. Monninger Inspiration Gila Company Mine Name Churcter of Ole Agent Neuest Town

Inspiration Cons. Copper Co. (cont ) 79 Mine Copper F. Monninger Winkelman Pinal Jacquays Mining Company El Dorado Mine Asbestos D.W. Jaquays Globe Gila Globe Mill Asbestos D.W. Jaquays Globe Gila Joy Manufacturing, Inc. Lakeshore Mine Diamond Drilling J. Lloyd Casa Grande Pinal Mineral Park Mine Diamond Drilling J. Lloyd Kingman Mohave Twin Buttes Drill. Operation Diamond Drilling J. Lloyd Sahuarita Pima Kennecott Copper Corporation Hayden Acid Plant K.H. Matheson Hayden Gila llayden Concentrator Copper K.H. Matheson Hayden Gila Hayden Smelter Copper K.H. Matheson Hayden Gila Kennecott Electrowin. Plant Copper K.H. Matheson Kearny Pinal Kennecott Lime Plant Lime K.H. Matheson Kearny Pinal Kennecott Lime Quarry Limestone K.H. Matheson Kearny Pinal Ray Open Pit Copper K.H. Matheson Kearny Pinal Ray Silica Plant Silica K.H. Matheson Kearny Pinal Safford Project Copper W.S. Deans Safford Graham Little Hills Mining Co. Gold Hill Mine Sandstone D. McGee Oracle Pinal Look Out Mining Company Look Out Mine Gold/Silver N. Framstead Humboldt Yavapai McCarrell & Gurley Cheto l Bentonite C. Gurley Sanders Apache McFarland & Hullinger Glove Mine Lead/Zinc W.D. Nelson Arnado Santa Cruz Lime Pit Lime W. Nelson Winkelman Pinal Silica Mill Silica W. Nelson Winkelman Pinal The Madden Company Jack Pot Mill Gold A1 Madden Quartzite Yuma Mine Nsme C7wrcter of Ore Agent Nwest Town County

pp -- - - - Maddux & Sons Ready Mix & Trucking Service Pearce Silica Pit Silica L. Maddux Pearce Cochise Magma Copper Company Magma Mine Copper C.G. Freeman Superior Pinal San Manuel Lime Plant Lime J. Goss San Manuel ha1 San Manuel Mill Copper J. Goss San Manuel Pinal San Manuel Mine Copper J. Goss San Manuel Pinal San Manuel Smelter Copper J. Goss San Manuel Pinal Superior Mill Copper C.G. Freeman Superior Pinal Mamobello Marble Company Marmobello Mine Marble C. DiPeso Dragoon Cochise John Mercer & Company Pinto Valley Mill Copper J. Mercer Miami Gila Mesa Precast Company Black Hills Pit Pumice R. Everett Flagstaff Coconino Middle March, Inc. Middle March Mine Copper/Lead/Zinc B. Edgeman Pearce Cochise Mine Management Corp. Blue Bell Mine Copper D. Pickens Mayer Yavapai Mineral Exploration Company B S & K Pilot Mine Copper K. Aveson Silver Bell Pima National Gypsum Company Feldman Quarry Gypsum D. Steel Winkelman Pinal Oracle Drilling, Inc. Copper A. Johnson Superior Pinal San Manuel Operation Copper A. Johnson San Manuel Pinal Phelps Dodge Corpora tion Copper Queen Underground Leach Plant copper H. Metz Bisbee Cochise Douglas Reduction Works Copper W. Gage Douglas Cochise Evans Point Lime Quarry Limestone J. O'Neill Morenci Greenlee Metcalf Leaching Plant Copper J. O'Neill Morenci Greenlee Metcalf Mill Copper J. O'Neill Morenci Creenlee Company Mine Name C%uacter of Ore Agent Nearest Town County

Phelps Dodg Corp. (cont) Metcalf Open Pit Copper J. O'Neill Morenci Greenlee Morenci Mill Copper J. O'Neill Morenci Greenlee Morenci Open Pit Copper J. O'Neill Morenci Gieenlee Morenci Silica Pit Silica J. O'Neill Morenci Greenlee Morenci Smelter Copper J. O'Neill Morenci Greenlee New Cornelia Mill Copper D. Orr Ajo Pima New Cornelia Open Pit Copper D. Orr Ajo Pima New Cornelia Smelter Copper D. Orr Ajo Pima Safford Branch Copper S.C. Holmes Safford Graham Phoenix Brick Yard Tolleson Clay Pit Clay /Shale D. Campbell Tolleson Maricopa Phoenix Cement Company Clarkdale Plant Lime J.E. Conway Clarkdale Yavapai Clarkdale Quarry Limestone J.E. Conway Clarkdale Yavapai Pope Mining Incorporated Pope Mine GoldISilver R. Scarth Kingman Mohave Producers Minerals Peacock Mine Copper R. Morrow Sa fford Graham R & L Cinders Cinders R. Sabcak Ashfork Coconino Ramhead Mining Ltd. Western Fluorspar Mine Fluorspar V. Randolph Young Gila Ranchers Exploration & Development Company Bluebird Leaching Plant Copper G. VanEtten Miami Gila Bluebird Open Pit Copper G. VanEtten Miami Gila Red Rover Mining Company Red Rover Mine Copper/Silver H. McNeill Cave Creek Maricopa Remaca Corporation Vekol Mine Copper L. Higbee Stanfield Pinal Resources International Leaching Operation GoldISilver M. Wendell Dolan Springs Mohave Robart Mining Company Orizaba Silica Pit Silica A. Robart Casa Grande Pinal Comoanv Mine Name Character of Ore Anent Nearest Town County

Sacaton Mining Institute Clay /Shale E. Cooley Sacaton Pinal 71 Minerals Ltd. Tombstone Leach Plant GoldISilver R. Van Arsdale Tombstone Cochise J.F. Shea Contracting Buckskin Tunnel CAP Tunnel E. Murphy Rrker Yuma Sierra Minerals Management Tombstone Leach Plant Gold/Silver R. Hewlett Tombstone Cochise Jacob & Dorita Skrede Lone Pine Mine J. Skrede Prescot t Yavapai Southwest Salt Company Southwest Mine & Mill Salt G. Grott Glendale Maricopa St. Joe American Corporation Sunrise Mine LeadIZinc B. Renzzeti Amado Santa Cruz State of Maine Mining Co. State of Maine r2 Gold/Silver L. Escapule Tombstone Cochise Sunburst Mining Company Vekol Mine Copper D. Stout Stanfield Pinal Sunrise Mining Company Glove Mine Lead/Zinc H. Ruppel Arnado Santa Cruz Superior Companies Drake Limestone Pit & Mill Lime W. Fisher Paulden Yavapai Verde Gypsum Pit & Mill Gypsum W. Fisher Camp Verde Yavapai Winkelman Gypsum Pit Gypsum W. Fisher Winkelman Pinal Superlite Builders Supply Superlite Pit Pumice F. Bengston Flagstaff Coconino Tech Associates Hillside Mine GoldISilver L.D. Holland Apache Jct. Maricopa Alan Thetford r l Crusher Gold/~ilver C. Thetford Pearce Cochise Tonto Mining & Milling Blue Bird Mine Fluorspar J. Hamilton Tonto Basin Gila Tonto Mill Fluorspar J. Hamilton Tonto Basin Gila Trans Western Mining Corp. Mill LeadISilver M. Willard Wikieup Mohave U.S. Lime Products Nelson Lime Pit Lime J.C. MacDonald Peach Springs Coconino Union Minerals B S & K Pilot Mine Copper A. Williams Silver Bell Pima University of Arizona San Xavier * 6 Shaft E. Jucevic Tucson Pima Venture Mlling Company Ray Pit A. Kalar Kearny Pinal Company Mine Name Character of Ore Agent Narest Town County

Gordon Wainwright, Contractor Camp Grant Quarry Silica . G. Wainwright Hayden Gila Chilito Quarry Silica G. Wainwright Hayden Gila Charles R. Ward Corporation Car Shaft Silver C.R. Ward White Hills Mohave Western States Stone Company Rainbow a 1 Onyx Mine Onyx W. Webster Cave Creek Maricopa Jack White Gold Mine Gold H. Webb Phoenix Maricopa Wyoming Mineral Corporation Red Bluff Mine Uranium A.L. Bethel Miami Gila Yellow Dog Mine Gold R. Farrar/E. Purtze Quartzite Yuma Yunia Zeolite Corporation Yuma Zeolite Mine Zeolite D. Stout Yuma Yuma AND SAND GRAVEL OPERATIONS I = Company Name Pit or Piant Name rbmt Nurat Town County

A & A Materials Inc. Brick Red Pit N. Adams Scottsdale Maricopa Granite Pit N. Adarns Scottsdale Marico; )a Screening Plant & Shop N. Adams Scottsdale Maricol la A. C. Materials H. McCracken Camp Verde Yavapai Acme Sand & Gravel J. Janasko Tucson Pima Action Sand & Gravel R. Marsh Tucson Pima Aya Fria Sand & Rock Toneson pit C .Mungia Tolleson Maricopa Allied Concrete Incorporated Sand &Gravel Plant D. Sneed Phoenix Maricopa Mesa Want D. Sneed Mesa Maricopa American West Construction Noon Ranch Pit M. Karam Nogales Santa Cruz Apache Granite Company Apache Pit C. Thompson Apache Junction Pinal Arizona Crushing Company Higley Pit E. J. Cyr Tempe Maricopa 7th Street Pit E. J. Cyr Phoenix Maricopa 79th Ave. Pit E. J. Cyr Phoenix Maricopa Townsend Pit E. J. Cyr Tempe Maricopa Arizona Dept. of Transportation Gardners Sand &Gravel Pit Tuba City Coconino House Rock Pit House Rock Coconino Santa Fe Pit E. Centsch Flagstaff Coconino 2nd Knoll Pit-East Side H. Martin Show Low Navajo Sheepwash Pit Safford Graham Stoneman Lake Pit E. Gentsch Flagstaff Coconino Company Name PSt or Plant Name mnt Netre~tTown County

Arizona Portland Cement Pantano Clay Pit E. Thornberry Tucson Pima Arizona Sand & Rock Aya Fria Plant E. Clark Sun City Maricopa Plant a l E. Clark Phoenix Maricopa Plant a 3 E. Clark Phoenix Maricopa The Ashton Company . ADOT Pit H. Ashton Tucson Pima Cutter Pit H. Ashton Globe Gila Hackberry Road Pit H. Ashton Kingman Mohave Hog Farm Pit H. Ashton Tucson Pima Lake Havasu State Pit H. Ashton Lake Havasu City Mohave B & C Concrete Inc. Valenzuela Pit F. Crabtree Yuma Yuma B & R Materials North Pit P. Richardson Tucson Pima Bagdad Readi-Mix. Inc. R. Warner Bagdad Y avapai Bedrock Aggregate T. Mulcaire Cottonwood Yavapai Bell Enterprises Screening Plant Gary Bell Mayer Yavapai Black Rock Construction Inc. Black Rock Sand & Gravel P. McKinnon Holbrook Navajo Blue River Concrete & Aggregate Blue River Pit T. Daugherty Parker Yuma M. R. Bowers Cinders Second Knoll Pit M. R. Bowers Lakeside Navajo Brimhall Sand & Rock Cottonwood Wash Pit D. Brimhall Snowflake Navajo C. B. Sand &Gravel, Inc. Rleak Pit F. Bleak Flagstaff Coconino C.K.C. Materials Division Airport Pit R. Kay Safford Graham Century Paving & Materials Plant a 1 T. Nesbitt Mesa Maricopa Chandler Ready Mix Company Chandler Ready Mix Plant W. Wright Mesa Maricopa Cholla Construction Company Bowie Sand & Gravel Pit M. Grusendorf Bowie Cochise Company Name Pit or Plant Name Agent Nearest Town County

Cindrich Rock & Sand Company Cindrich Pit C. Cindrich Tucson Pima Fred Clark Trucking Company Pit u I F. Clark Mammoth Pinal Cochise County Highway Dept. Hansen Pit V. Thomsen Bisbee Cochise Cochise Materials Pit a1 R. Skaggs Benson Cochise Coconino County Highway Dept. Sheep Pit K. Jenteman Flagstaff Coconino Columbia Rock Mining & Crushing Drexel Road Pit J. C. Steward Tucson Pima ~olumbiaSand & Gravel Ina Road Pit F. Longhofer Tucson Pima J. C. Compton Company 140 Pit M. Flanigan Kingman Mohave Corn Construction Company Pit 8088 L. Corn Williams Coconino Francis Day & Sons Concho Sand & Gravel Pit F. Day St. Johns Apache Desert Gold Granite Company Decomposed Granite Pit B. Browning Glendale Maricopa Desert Materials Company Goodman Wash Pit R. Bayles Ehrenberg Yuma Ray DeSpain Sand & Gravel Pit a1 R. DeSpain Holbrook Navajo Dreeszen Gravel Company Charleston Pit G. Dreeszen Sierra Vista Cochise J. D. Dutton Inc. Dutton Pit J. D. Dutton Kayenta Navajo E Z Transmix Company Lake Watson Pit J. Eisberg Prescot t Yavapai . Lynx Creek Pit J. Eisberg Prescott Yavapai Eads Construction Company Don Luis Pit C. Eads Bisbee Cochise Earth Products Unlimited Earth Products Pit J. Carr Lake Havasu City Mohave Kenneth Ethridge Construction Screening Plant Pit K. Ethridge Tucson Pima James L. Fann Contracting Co. Granite Creek Pit J. L. Fann Prescot t Yavapai Flagstaff Cinder Sales Black Pit R. Oliver Flagstaff Coconino Red Pit R. Oliver Flagstaff Coconino Com~anvName Pit or Plant Name Anent Nearest Town County

Foothill Transit Mix Foothill Sand & Gravel G. L. Thomas Yuma Yuma Gibson Enterprises Heber-Black Canyon Pit R. Gibson Heber Navajo Gila Redi-Mix Company Pit r 1 J. Hopkins Gila Bend Maricopa Gila Valley Block Company Pumice No. 2 W. Maher Safford Graham A. J. Gilbert Construction Ash Creek Pit A. J. Gilbert Dewey Yavapai Sundt Job A. J. Gilbert Topock Mohave Gotrocks Stone Company Gotrocks Sand & Stone H. Heine Wickenburg Yavapai Graham County Highway Dept. Central Pit J. Moser Safford Graham B. L. Gustafson Contractor Skunk Creek Pit B. L. Gustafson Phoenix Maricopa Guzman Construction Company Globe-Miami Pit M. Guzman, Sr. Globe Gila H & S Developers, Inc. Fortuna Wash Pit H. Schechert Yuma Yuma Hamilton Sand & Gravel Hamilton Pit D. May Willcox Cochise J. D. Harris Granite Company Decomposed Granite Pit J. D. Harris Glendale Maricopa Hunter Contracting Company N. Gilbert Road Pit A. Taddei Gilbert Maricopa Johnson-Stewart Materials Mesa Plant * 1 J. Johnson Mesa Maricopa North Plant J. Johnson Mesa Maricopa Judd Sand & Gravel Buckskin Pit B. Judd Fredonia Coconino Don Kelland Materials Dateland Pit D. Kelland Tacna Yuma Roll Pit D. Kelland Tacna Yuma Roll Plant D. Kelland Tacna Yuma E. S. Kelton Contracting ESKO Sand & Gravel Pit E. S. Kelton Cave Creek Maricopa Peter Kiewit Sons' Company Airport Road Pit J. Knight Buckeye Maricopa King Material Enterprises B. King Mesa Maricopa Cornpan y Nme Pit or Plant Name Agent Ncncst Town County

KOjan Enterprises Page West Screen Plant P. Kocjan Pag Coconino Lynx Creek Lake Corporation Lynx Creek Mine R. Rschimiler Prescot t Yavapai McCormick Properties Hancock Pit N. Merrill Bullhead City Mohave Robert E. McKee, Inc. Shipley Pit W. Bradley Peach Springs Coconino Maddux & Sons, Inc. Airport Pit R. Maddux Douglas Cochise D.C. Contractors Pit R. Maddux Douglas Cochise Nicksville Pit R. Maddux Douglas Cochise Old English Pit R. Maddux Douglas Cochise Madison Granite Company Granite Pit L. Madison Phoenix Maricopa Massey Enterprises Adair Park Pit J. Corkill Yuma Yuma John F. Mercer & Company Cutter Pit J. Mercer Globe Gila Mesa Sand & Rock 0. B. Schill Mesa Maricopa R. E. Miller Construction Co. Agua Fria Pit R. E. Miller Tucson Pima Pit eS R. E. Miller Tucson Pima Mohave Concrete & Materials Havarin Ranch Pit Q. Polidori Lake Havasu City Mohave W. A. Morris Sand & Gravel W. A. Morris Safford Graham Multi Metals Company Mariposa Pit Paul Arbo Nogales Santa Cruz Richard P. Murray Co., Inc. Owens Pit R. P. Murray Taylor Navajo National Sand & Gravel Agua Fria Pit J. Krumpton Tolleson Maricopa Nelson & Sons BIA Pit D. Nelson Many Farms Apache Nesbitt Contracting Company Pit r 2 T. Nesbitt Mesa Maricopa New Pueblo Constructors Inc. Agua Fria Pit K. Ronstadt Nogales Santa Cruz Batch Plant K. Ronstadt Nogales Santa Cruz Company Name Pit or Plant Name Neuest Town County

New Pueblo Constructors, Inc. Fico K. Ronstadt Nogales Santa Cmz (cont ) Hughes Pit K. Ronstadt Tucson Pima 1-19 Pit K. Ronstad t Tumacacori Santa Cmz Screening Plant K. Ronstadt Nogales Santa Cruz a4 Tailing Disposal W. Martin Globe Gila Nielsons. Inc. Hunters Point Pit W. K. Nielson Window Rock Apache Nielson Sand & Gravel Pit W. K. Nielson Window Rock Apache St. Michael's Pit W. K. Nielson St. Michaels Apache Northern Materials Corp. E. Robinson Crater Pit Buck Brown Flagstaff Coconino Oro Rock & Sand Company R. Kroecker Tucson Pima Pantano Sand & Gravel Pantano Pit Bill Pryde Tucson Pima Wyson Concrete Materials Buckskin Pit G. Randall Heber Navajo Rye Creek Pit G. Randall Payson Gila Peabody Coal Company Crushed Stone Plant D. Hendricks Kayenta Navajo Joy T. Pearce Construction Inc. Linden Pit & Plant J. T. Pearce Show Low Navajo K. H. Phillips & Company Phillips Redi-Mix K. H. Phillips Winslow Navajo Phoenix Redi-Mix Company Phoenix Redi-Mix Pit M. Valente Phoenix Maricopa Phoenix Sand & Rock Agua Fria Pit E. Johnson Phoenix Maricopa Pinal County Highway Dept. Lee Pit J. Bateman Casa Grande Pinal Pinal Materials Plants 7 & 8 Ben Zink Casa Grande Pinal Portable Crushing Plant 9 Ben Zink Casa Grande Pinal Poston Materials Inc. Parker Pit D. Shepardson Parker Yuma Pyramid Mountain Granite Co. Granite Pit J. Stanfield Phoenix Maricopa Company Nune Fit or Rant Nune Agent Neunt Town County - -- Red Mountain Mining Company Crushing & Screening Ted Eyde Mesa Maricopa Reeves Sand & Rock Company Pit *I L. Reeves Phoenix Maricopa Reidhead Sand & Rock, Inc. Main Plant T. Reidhead Taylor Navajo River Road Sand & Gravel Santa Cruz Pit M. Padilla Nogales Santa Cruz Royal A & A Materials Plant a 1 Norman Adams Glendale Maricopa Plant a 2 Norman Adams Avondale Maricopa Royal Rock &Granite New River Pit R. JohnsonIR. Penrod Glendale Maricopa Saguaro Concrete Company Sand & Gravel Pit L. R. Barr Kearny . Pinal Salcido Sand & Gravel Columbia Sand &Gravel Pit J. Salcido Sierra Vista Cochise No. 1 Pit J. Salcido Paul Spur Cochise No. 2 Pit J. Salcido Douglas Cochise Sand Specialties Beeline Plant Carl Thomas Mesa Maricopa Granite Reef Plant Carl Thomas Mesa Maricopa Sanner Contracting Company Granite Pit R. Kempton Phoenix Maricopa San Xavier Rock & Materials Valencia Pit Claude Seal Tucson Pima Wally Schull Materials Action Sand &Gravel W. Schull Tucson Pima Kern Pit W. Schull Tucson Pima J. F. Shea Sand & Gravel Co. Buckskin Project E. Murphy Parker Yuma Sierra Ready Mix & Contr. Co. Sand & Gravel Operation E. J. Cyr Sierra Vista Cochise W. R. Skousen Contracting Co. A B Pit W. R. Skousen Nogales Santa Cruz ABC Pit a 1 W. R. Skousen Sells Pima Coolidge Pit a 7380 W. R. Skousen Coolidge Pinal Hackberry Road Pit W. R. Skousen Kingman Mohave Company Nune Plt or Rant Name Apt Nemst Town County

W. R. Skousen Contracting Co. M&APit W. R. Skousen Amado Santa Cruz (cont ) Sells Pit W. R. Skousen Sells Pima State Pit J. Drulyac Cottonwood Yavapai D. C. Speer Construction Co. Aravaipa Pit D. C. Speer Mammoth Pinal Buckeye Pit D. C. Speer Buckeye Maricopa Portable Crusher J. S. Billings Cottonwood Yavapai Star Ready Mix Sand & Gravel Operation R. Taylor Lake Havasu City Mohave Sulphur Valley Block Company Sand & Gravel Pit C. Frei Cochise Cochise Sun Valley Crushing Company Agua Fria Pit B. Walker Glendale Maricopa Bylas Pit John Weik Bylas Graham Superior Companies El Jay Portable Plant B. South Camp Verde Yavapai Verde Material Pit B. South Camp Verde Yavapai Superlite Builders Supply Phoenix Plant a 2 F. Bengston Phoenix Maricopa T & H Construction, Inc. Walnut Creek Pit L. D. Tracey Tombstone Cochise The Tanner Companies Airport Project A. K. Rogers Phoenix Maricopa Highway Pit a 7699 Orval Gillen Seligman Yavapai Highway Pit a8184 Orval Gillen Seligman Yavapai Job 3879 Litchfield J. L. Fowler Avondale Maricopa Tanner Paving A1 Gray Parker Yuma Thompson Redi Mix D. Thompson Bullhead City Mohave Tri City Ready Mix I. Boyle Mesa Maricopa Tucson Rock & Sand Company Plant a 23 Tom Matz Tucson Pima Plant a 26 L. Woolsey Tucson Pima Company Nune Plt or PhtNunc Agent Nearest Town County

Tucson Sand & Soil 1) Iluddcr Tucson Pima Union Rock & Materials El Mirage Plant Ron Kcerer Phtznix Maricopa Mesa Plant Ron Keele r Plitxnix Maricopa Phoenix Plant a 1 Ron Keefer I'lioenix Maricopa 24th Street Pit Ron Keefer Phoenix Maricopa United Metro Plant 1 1. Tanner Phoenix Maricopa Plant a2 Evans Tanner Glendale Maricopa Plant a 3 Evans Tanner Phoenix Maricopa Plant a 6 Nonis Fish Phoenix Maricopa Plant a7 Evans Tanner Coolidge Pinal Plant a9 W. Wadkins Casa Grande Pinal Plant a 10 Don Drew Buckeye Maricopa Plant a 11 J. Janney Yuma Yuma V. 0. Contracting Company Centennial Wash Pit J. A. Mason Tonopah Maricopa Valley Concrete & Materials D. Heath Cottonwood Yavapai Valley Rock & Sand McCann Pit M. McCann Tucson Pima W.M.K. Tmnsit Mix Bullhead City Div. L Taggert Bullhead City Mohave Kingman Division D. Belding Kingman Mohave Western Sand & Rock H. Quackenbush Avondale Maricopa Willcox Rock & Sand Gallagher Pit K. Gallagher Wilcox Cochise Riggs Pit K. Gallagher Willcox Cochise C. B. Willis Construction Co. Foothills Sand & Gravel Pit Clifford Willis Safford Graham Company Nune Pit or Plant Name lbent Nearest Town County

Yavapai County Highway Dept. Beaver Head Flat Pit Joe Sarvis Sedona Yavapai Cherry Creek Pit C. Cockerham Camp Verde Yavapai Kirkland Pit L. Rubink Kirkland Yavapai Wilkinson Pit M. Pentecost Prescot t Yavapai Yavapai Materials Wilkinson Pit J. Pemberton Prescot t Yavapai Young Block Company, Inc. Screen Pit T. P. Young Sierra Vista Cochise Yuma County Highway Dept. Plant a 1 K. Brooks Yuma Yuma Yuma County Highway Dept. Plant a 2 D. Fortney Roll Yuma UNDERGROUND MINES Number of Inspections - Number of Employes December 1,1976 through November 30,1977

Explanation of Column Headings 1 = Number of inspections made at property D = Number of dust aamplea taken N = Number of nohe readinlp taken V = Number of ventilation madings taken G = Nnmber of gas samples taken R = Number of radiation samples taken C = Number of complaints filed and investigated E = Numb- of employees

COMPANY NAME - MINE NAME I D N V G R C E

American International Mining & Milling National Mine 1 Arizona Western Mines Old Eagle Mine 4 Beard MiningCompany Taylor Mine 1 2 UNDERGROUND MINES Continued-

COMPANY NAME - MINE NAME I D N V G R C E

Bisbee Salvage & Equipment Co. Cole, Campbell & Dallas 1 Closed Boyles Brothers Drilling Co. Lakeshore Mine 2 4 Ted H. Burris Longshot Mine 1 1 Canadian Mine Limited Company Twin Buttes Adit a 1 3 Capital & Resources International Limited Rebel Mine 3 Cementation Company of America San Manuel r 3-A Shaft Twin Buttes r 1 Adit Centennial Development Company Lakahore Mine Cities Service Company Miami Copper Leaching 2 71 Miami East Mine 4 13 Old Dominion Shaft 1 None UNDERGROUND MINES Continued-

COMPANY NAME - MINE NAME I D N V G R C E

City of Bisbee Queen Tunnel Cobre Lorna Mining Company Cobre Loma Mine Continental Copper Company Control Mine Cyprus Bruce Copper & Zinc Company Bruce Mine Double Eagle Mining Corporation Dry Hills Association Mining Corporation Dry Hole 1,2,&3 El Toro Mining Incorporated Bond Group Mines El Toro Mine Gold Cave Mine & Development Cave Mine Golden Belt Mines, Inc. Silver Cord Mine Harrison Western Corporation ASARCO Sacaton Shaft UNDERGROUND MINES Continued-

COMPANY NAME - MINE NAME I D N V G R C E

Hecla Mining Company Lakesliore Mine Hemphill Brothers Incorporated Taylor Mine Hillside Mining Company Hillside Mine Inspiration Consolidated Copper Christmas Underground Mine 2 Seventy-Nine Mine Closed Jaquays Mining Corporation El Dorado Mine Joy Manufacturing Company Lakeshore Mine Look-Out Mining Company, Inc. Look Out Mine McFarland & Hullinger Globe Mine Magma Copper Company San Manuel Mine Superior Division Mine UNDERGROUND MINES Continued-

COMPANY NAME - MINE NAME I D N V G R C E

Middle March Mining Company Middle March Mine Mine Management Corporation Blue Bell Mine Closed Mineral Exploration Company B S & K Pilot Mine Oracle Drilling, Inc. Superior Drilling Operation San Manuel Operation Oracle Ridge Mining Partners Oracle Ridge Project Phelps Dodge Corporation Copper Queen Underground Leaching Operation Foothills e 1 Shaft New Cornelia Well Producers Minerals Corporation Peacock Mine Ramhcad Mining Limited Western Fluorspar Mine SIXTY-SIXTH ANNUAL REPORT 29 30 SIXTY-SIXTH ANNUAL REPORT OPEN PIT MINES

Number of Inspections - Number of Employees I December 1,1976 through November 30,1977

Explanation of Column Heading

I = Number of inspections made at property D = Number of dust sampks taken N = Number of noise reading taken C = Number of complaints filed and investigated E = Average number of employees

COMPANY NAME - MINE NAME I D N C E

A1 Dot or Eureka Iron Pyrite Claim 2 2 1 Anamax Mining Company Twin Buttes Open Pit 8 12 9 1 1055 Andersen Development Corporation Bluebird Mine 4 76 Andrada Marble Company Andrada Pit 4 1 1 2 Apple Mining Company, Incorporated 1 2 OPEN PIT MINES Continued-

COMPANY NAME - MINE NAME I D N C E

Arizona Portland Cement Company Anamax Quarry 1 2 Pantano Clay Pit 2 3 Rillito Quarry 4 3 3 15 Arizona Silica Sand Company Houck Operation 2 13 ASARCO Incorporated Eisenhower Pit 4 30 Mission Open Pit 4 165 Sacaton Open Pit 9 13 19 183 San Xavier Open Pit 3 50 Silver Bell Open Pit 4 13 13 85 Boyles Brothers Drilling Company Ray Pit 4 1 1 6 Can-Am Corporation Paul Lime Quarry 5 13 12 13 Catalina Marble Quarry & Plant 4 5 5 Cholla Construction 2 1 1 2 Cities Service Company Pinto Valley Open Pit 4 10 15 235 SIXTY-SIXTH ANNUAL REPORT 33 OPEN PIT MINES -Continued-

COMPANY NAME - MINE NAME I D N C E

Fatrol Corporation Cheto Mine Flagstaff Cinder Sales Black Pit Red Pit A. 1. Gilbert Construction Company Don Luis Pit Gilbert Silica Kt lnspiration Pit Gulf American Enterprises Cat Pause Mine Happy Jack Mines, incorporated L. W. Hardy Company, Incorporated Pinto Valley Operation Sleeping Beauty Kt Hemphill Brothers, Incorporated Silica Pit Inspiration Consolidated Copper Co. Christmas Pit Inspiration Open Pit OPEN PIT MINES Continued-

COMPANY NAME - MINE NAME

Inspiration Consolidated Copper Co. (cont) Oxhide Pit Joy Manufacturing Company Mineral Park Mine Twin Buttes Drilling Operation Kennecott Copper Corporation Limestone Quarry Ray Open Pit Little Hills Mining Company Gold Hill Mine McCarrell & Gurley Cheto 1 Closed McFarland & Hullinger Contractor Lime Pit Maddux & Sons Pearce Silica Pit Marmobello Marble Company, Inc. National Gypsum Company Feldman Quarry OPEN PIT MINES Continued-

COMPANY NAME - MME NAME I D N C E

Phelps Dodge Corporation Evans Point Lime Quarry 2 2 5 8 Metcdf Open Pit 3 15 19 163 Morenci Open Pit 3 17 17 657 Morenci Silica Pit 1 8 New Cornelia Open Pit 6 18 19 287 New Cornelia Power Plant 2 2 Phoenix Brick Yard Tolleson Clay Pit 2 1 1 3 Phoenix Cement Company Clarkdale Quarry 3 3 3 10 Pope Mining Incorporated Pope Mine 1 5 Quien Sabe Mining & Development Ltd. Quien Sabe Pit 3 5 2 R & L Cinders 3 2 Remaca Corporation Vekol Mine 2 3 Resources International 3 6 OPEN PIT MINES Cantinued-

COMPANY NAME - MINE NAME I D N C E

Robart Mining Company Orizaba Silica Pit Superior Companies Drake Limestone Pit Verde Gypsum Pit & Plant Winkelman Gypsum Pit U. S. Lime Products Division, The Flintkote Company Nelson Lime Pit Venture Drilling Company Ray Pit 2 Gordon Wainwright Camp Grant Quarry 5 Chilito Quarry 3 Western States Stone Company Rainbow * 1 Onyx Mine 2 Yuma Zeolite Corporation Closed

Totals MILLS AND SMELTERS

Number of Inspections - Number of Employees December 1,1976 through Nwember 30,1977

Explanation of Column Headings

I = Number of inspections made at property D = Number of dust samples taken N = Number of noise readings taken G = Number of gas samples taken C = Number of complaints filed and investigated E = Average number of employees

COMPANY NAME - PLANT NAME I D N G C E

Anamax Mining Company Twin Buttes Mill Twin Buttes Oxide Plant Andrada Marble Company Andrada Marble Crusher & Sacker Arizona Portland Cement Company Rillito Mill MILLS AND SMELTERS Continued-

COMPANY NAME - PLANT NAME i D N C C E

ASARCO Incorporated Hayden Smelter Mission Mill Sacaton Mill San Xavier Leach Plant Silver &I1 Mill Buckeye Mica Company Buc~eyeMica Mill Can-Am Corporation Paul Lime Plant Cities Service Company Pinto Valley Mill Cyprus Bagdad Copper Company Electrowinning Plant 30 New Bagdad Mill 435 Old Bagdad Mill Closed Cyprus Bruce Copper & Zinc Company Bruce Mill Cyprus Johnson Copper Company Johnson Leaching Plant MILLS AND SMELTERS Continued-

COMPANY NAME - PLANT NAME I D N G C E

Cyprus Metallurgical Process Corporation 1 90 Cyprus Pirna Mining Company Pima Mill 4 17 14 340 Dry Hills Association Mining Company Leach Plant 1 7 Duval Corporation Esperanza MU 3 9 8 157 Mineral Park Mill 4 17 14 250 Duval Sienita Mill 3 25 22 1177 E.O.J. Mining Venture Heap Leaching Plant 3 5 Filters International, Incorporated Superior Perlite Mill 4 5 4 10 Harborlite Corporation Superior Plant 2 3 2 3 Hecla Mining Company Lakeshore Metallurgical Plant 7 10 10 435 Hemphill Brothers Incorporated Taylor Mill 4 7 8 5 MILLS AND SMELTERS Continued-

COMPANY NAME - PLANT NAME I D N C C E lnspiration Consolidated Copper Co. Christmas Mill Inspiration Concentrator Inspiration Smelter Jaquays Mining Company Globe Mill Kennecott Copper Corporation Acid Plant Electrowinning Plant Hayden Concentrator Kennecott Lime Plant Safford Project Silica Plant Ray Division Smelter McFarland & Hullinper Silica Mill The Madden Company Jack Pot Mill Magma Copper Company San Manuel Lime Plant MILLS AND SMELTERS Continued-

COMPANY NAME - PLANT NAME I D N G C E

Magma Copper Company (cont) San Manuel Division Mill San Manuel Plant Maintenance San Manuel Smelter Superior Mill John Mercer & Company Pinto Valley Tailings Disposal Phelps Dodge Corporation Douglas Reduction Works & Prep. Plant Metcalf Mill & Leach Plant Morenci Mill Morenci Smelter & Bedding Dept. New Cornelia Concentrator New Cornelia Smelter Phoenix Cement Company Clarkdale Plant Ranchers Exploration & Development Corp. Bluebird Leaching Plant Seventy One Minerals Limited Tombstone Leach Plant MILLS AND SMELTERS Continued-

COMPANY NAME - PLANT NAME I D N C C E

Sierra Minerals Management Tombstone Leach Plant 2 2 2 10 Alan Thetford r 1 Crusher 1 2 Tonto Mining and Milling Tonto Mill 2 3 3 14 Trans Western Mining Corporation Mill 1 Closed U.S. Lime Products Division, The Flintkote Company Mill 2 24

Totals 186 507 503 68 3 9,744 SAND AND GRAVEL OPERATIONS

Number of Inspections - Number of Employm December 1,1976 through Nwember 30, 1977

Explanation of Column Headings

I = Number of inspections made at property D = Number of dust samples taken N = Number of nok teadings taken C = Number of complaints filed and investigated E = Average number of employees