Caliifornia Geology Magazine Sep-Oct 1993

CAUFOANIA GEOLOGY

SIal.. 01 C81i1otNa PETE WILSONGovernor

Depaltmenl 01 Conse<va1l0n EDWARO G. HEIQIGDir6CIor

The ResoufCfl$ A9<'nCY DOUGLAS P. WHEELERSecretilry fOf Resources

. 151

. 132. 140

In This Issue IDAMAGING LANDSLIDES RELATED TO THE INTENSE

RAINSTORMS OF JANUARY-FEBRUARY 1993,SOUTHERN CALIFORNIA , , 123

CALIFORNIA'S LANDSLIDE HAZARD IDENTIFICATIONPROJECT . .

DMG LANDLSIDE PUBLICATIONS .CROSSWORD PUZZLE

AMERICAN GEOLOGIC TERMS OF FOREIGN ORIGIN 141TEACHER FEATURE , , , , , 142LITERARY PROSPECTS 144NEW AND REVISED OFFICIAL MAPS OF SPECIAL

STUDIES ZONES OF JULY 1, 1993 146CALIFORNIA GEOLOGY SUBSCRIPTION AND CHANGE

OF ADDRESS FORM ,.. , , , 147DMG OPEN-FILE REPORT RELEASE 148DMG PUBLICATIONS REQUEST FORM 148CALIFORNIA GEOLOGY ISSUES FOR SALE . 149A 15TH CENTURY MINING LEASE .150AB 3098 SURFACE MINING AND RECLAMATION ACT

(SMARA ELIGIBLE L1ST-JUlY 30,1993) .

Elise MattisonLena Tabilio

Peggy WalkerJell Tambert

CALIFORNIA

GEOLOGY

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SEPTEMBER/OCTOBER 1993 Volume 46JNumber 5CGEOA 46 (S) 121-156 (1993)

Geological Society of AmericaHolds Classes at Annual Meeting

Oclober 25·28. 1993 - Boston

The following continuing education courses will be held immediately beforeor alter the G$.A. annual meeting.

l. GIS and the Geosciences 9. Environmenlal/Engineering2. Urban Geology: Foundation lor Geology and Land-Use Plan-

Inner City Health ning - An Interface Between3. Asia: A Continent Built and Science and Regulations

Assembled Over the Past 10. Geochemistry and Stable500 Million Years Isotopes of Paleosols,. Contaminant Hydrogeology: 11. Isotope HydrologyPractical Monitoring, Protec· 12. Fractals and Their Use in Earthtion, and Cleanup Sciences

5. Fracture Mechanics of RockFor more information, contact:6. Alternative Pedagogies of Ge0-

logical Sciences: A Workshop Edna A. Collis7. Application of Sedimentological Continuing Education Coordinator

Information to Hydrogeological GSA Annual MeetingProblems P.O. Box 9140

8. Computer Mapping at Your Boulder, CO 80301-9140

Desk That Really Works 'B' (BOO) 472-1988

Cover photo: Two of three homes that moved 50 feet (15 m)downslope on January 18, 1993. The Mystic Hills section oflaguna Beach. The house behind the utility pole is shown onpage 123. Photo by Pam Irvine.

'" CALIFORNIA GEOLOGY SEPTEMBER/OCTOBER \993

Damaging Landslides Related to the Intense Rainstonnsof January-February 1993, Southern California

ALLAN G. BARROWS, SIANG S. TAN, AND PAMELA J. IRVINE, GeologistsLandslide Hazard Identification Project

Division of Mines and Geology

Photo 1. One 01 three homes that moved 50 feet (15 rn) downslope on JanualY 18, 1993. The Mystic Hills section 01 LagunaBeach. Photo by Pam Irvine.

INTRODUCTION

As has happened several limesduring recent decades. severe

Mnler stonns drenched por­tions of Ianc:lsUde-prone coastal southernCalifornia, with predictable results. Para­doxically. water. like fire. can be both afriend and an enemy. In January andFebruary, when most Califomians hailedthe end of rigorous water-usage controls.dozens of homes. mostly in Orangeand Los Angeles counties. were beingdestroyed or damaged by disastrous slopefailures (Photo 0. It was a case of 100much water for many slopes to accom­modate in too short a lime.

In other disastrous VJeI years. such as1969, 1978, and 1980. deadly debrisf\oo.vs smashed into homes killing severaldozen people and causing several hun­dred million dollars of damage. [n con­trast. landslides associated with the 1993stonns were mostly deep-seated. rota­Ikloal or translational. slides al'Kl slumpsin cut sklpes. This year's wklespreadIandsliding caused extensive damage tohomes. streets, al'Kl utilities, with lossesthai may ultimately exceed $60 minion.Although flooding during the rainstonnscaused 20 deaths in California and asmany as 34 in nearby Mexico. there wereno fatalities or serious injuries from .slope

failures. One possible exception, if attrib­utable to the stonns. is a sea-cliff rockfallnear Santa Barbara that killed one manand injured another on March 28.

DAMAGE ESTIMATES

Whenever severe INinter storms strikeCalifamia. the bulk of the damage andloss of life is caused by manifestations ofnooding. such as inundation, erosion ofroacN.rays. destruction of bridges, andundercutting of dralnage-channel walls,Various kinds of slope failures (collectivelyreferred 10 as landslides). cause wide­spread damage as weD. Estimating the

CAUFORNIA GEOLOGY SEPTEMaEFIIOCTOBER 1993

Figure 1. Location map of storm-triggered destructive landslides in southern California,January through March, 1993. Numbers refer to sites discussed in text.

...... ,,L

I,

I./

ORANGE

3 /San e 2;

Clemente

@ Santa Ana

6

4Laguna @5

Beach

Long )Beach,'

,_s--

LOS ANGELESr ~.

./' AnaheIm ',,-~Hills .

@ 1a,b \Anaheim ..

(e) GlendaleStudio =10 City ~9 ,e- Pasadena

~ Los Angeles

87e)

Malibu

losses due directly to landsliding is a con­tinual problem because flood and landslidedamages are invariably evaluated toge herby local agencies. With this caution inmind, a preliminary estimate of publicand private property damage due directlyto landsliding in southern California is$30 million.

Loss estimates are very differenl ifthey include disruptions of the' economy.For example, the blockage of the SantaFe Railroad tracks by a landslide in DanaPoint forced nearly 6,000 Amtrak pas­sengers traveling between San Diego andLos Angeles daily to be bused around theclosure for 2 weeks. Another example isthe loss of business due 10 blocked access,as along Pacific Coast Highway in DanaPoint where the road was closed becauseof a landslide. Even rare or unique inci­dents contribute to landslide losses. Suchwas the case when a landslide ruptureda 26-inch (66-cm) natural gas main nearCastaic on February 24. Aames shot up

00 feet (30 m) and bLUT1ed about an acre(4,047 m2) of brush.

Twenty-two homes were destroyedand 137 damaged by slope failures insouthern California during the storm sea­son. Orange County suffered the bulk ofthe losses as a result of the prolongedstorms tha dumped rain intensely onthe vulnerable slopes. Geologists withthe Division of Mines and Geology'sLandslide Hazard Identification Projectobserved most of the failures describedin the brief accounts that follow. Thenumber preceding each account refersto its location on the map (Figure 1).

DAMAGING LANDSLIDES

Orange County

1a. Anaheim "Auenida de Santiago"Landslide (Anaheim Hills). The larg-est and most publicized landslide associ­ated with the 1993 rainstorms is inthe elevated eastern part of Anaheim.where homes are valued at $400,000 to

1 million. The landslide, named for astreet near the headscarp, covers about57 acres (23 hectares) on a north-facingdip slope in upper Miocene marine sand­stone and silts one (Figure 2). This trans­lationallandslide is about 1,300 feet(396 m) wide by 1,900 feet (579 m) long.After minor cracks were observed inApril, 1992, (follOWing the locally intense

February, 1992 rainstorms) the cityhired geologic consultants to investigatethe slope stability. Before the geologistscould complete their studies, January1993 storms dumped two to three timesthe normal amoun of rainfall on partsof southern California. On January 17.

993, the sUde began to move at the rateof about 1 inch (2 to 3 cm) per day,Cracks and fissures developed acrossstreets and through houses at the headand compressional features damagedhouses lower on the slope within thelandslide (Photos 2 and 3).

The city evacuated residents from46 homes on January 18 and a massivedewatering program was initiated. Morethan 100 horizontal and vertical wellswere drilled into the slide mass and, byearly April, 12 to 15 million gallons(45,420 to 56,775 m3) of water hadbeen removed. By mid-April. it was deter­mined from 10 slope indicators (devicesin the ground) the slide was no longermoving. Three homes have since beencondemned and nine others have majordamage. Most of the remaining homeshave been reoccupied, following repairof utilities. Losses are about $4 million.

lb. Anaheim ·Pegasus Street" Land­slide (Anaheim Hills). On January 18,1993, about 2,000 feet (610 m) westof the •Avenida de Santiago" landslide,a slump in a buttress fill at the head ofPegasus Street destroyed the dewateringsystem that was installed earlier to helpstabilize a problematic slope. A retainingwall failed and one home was destroyed.Damage is about $500,000.

2. San Clemente - widespreadproblems and heauy damage, January17·19. Intense rainstorms dumped ayear's worth of rain in 1 month resultingin the wettest January in Orange Countyhistory. Concentrated downpours washeddebris and vegetation down hundredsof slopes on the graded and terracedhillsides that face the ocean (Photos 4and 5). Initially, 23 homes were postedas unsafe (no entry) or rendered uninhab­itable (un il repairs could be made). Atleast two $400,000 homes were razed,It is estimated thai 117 homes weredamaged during the mid-January storms,including 3 or 4 condominiums in theColony Cove area directly above PacificCoast Highway. Local governmentestimates that storm damage to public

124 CALIFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993

II

II

I

.350.000 Losse from I Iandslid WIllprobably ·cecd. 7 million.

4 Laguna Beach "Mystic LoneLandslide Early In lh m mlng n J nuary 1 . a remobibz d old I nd lid nd/orrill failure on il steep c nyon Wi II (llong a

"A e Ida de 5antJago landslide,

dip I pe In locene sand one destroyedrhre hom (Cover photo: Photo 1).On of the homes burned In arch. theo h hom ,spectacularly distorted fromm ving 50 r t (15 m) downslope, werTal d ~ he lire department. 1.0 fromthis landslIde are about 2 million.

CAUFOR A GEOlOG SEPTE BERIOCT08ER 1993 25

Photo 3. looking north aJong oompresslonalleatutes atlhe wesl·ern margin of !he "Avenida de S3n1Jago"landslide, AnaheIm H.ns.Overlapping aspha/I paYment and "tented'" SIdewalk resulted fromlandslide in January 1993. Photo by Siang Tan.

destroyed and tlu'ee horses had to be freed from deep mud. Inaddition. a $40.000 shrub-shredder was aushed by a boulderentrained in a debris flo.w

Los Angeles County

7. Los Angeles "Castef/ammare Mesa" 1JJndslide (PacIfICPalisades'. Ouunic landslide pnXjems haw affected this area.wt'llch SIts on a remnant of an emergent wave-cut platformmore than 100 feet (30 m) aboue sea IeueI just inland fromPacific Coast Highway (FIgure 3). Many homes have been dam·aged or destroyed over the years. During mid..January 1993,residents of five homes VJ(!re evacuated and three of lhe homesalong CasteUammare Drive destroyed (Photo B). CastellammareDrive and nearby Porto Marina Way (which is on top of thesea cliff that abuts Pacific Coast Highway), VJere heavily dam·aged (Photo 9). Los Angeles implemented a $2.7·million emer·gency reconstruction program to save the two streets by sinkingrows of SO·foot (24-m) pilings tied together by Wldergroundconcrete beams. Piles previously placed in Castellammare nowprotrude because landslide debris flov..oed around them duringthe January storms. Landslide damage to private and publicproperty approaches $6 million.

B. Los Angeles -Mandeville Canyon" 1JJndslldes. Duringthe intense rainstonns or February 22 and 23 l1leTe were severaldebris flows on the steep waDs of Mandeville Canyon. Althoughtwo homes~ damaged by the debris and mu:i. no in;.mes~ reported. Damage totaled $60.000.

9 Los Angeles -Phoosonl Driue- Landslide (Mount Wash­ington). In this area of very steep lenain about 4 miles (6 km)north of the Civic Center, one small older home was destroyedand two others threatened (Photo 10) when a slump occurred onFebruary 19. Damage was about $400.000.

5. Laguna Beach ~Buena Vlsla Way"Landslide. Saturation from the slonns ofJanuary and February caused a slump­type landslide on March 12. 1993. Itdestroyed one home on Buena Vista Way(Photo 7) and another home just upslopeon Canyon View Road. Damage is about$1 million.

6. Santa Ana Mountains ~Moje:ska­

and -Santiago Canyon ~ Landslides.Several steep canyons dissect the ruggedwestern slopes of the Santa Ana MQUl­tains. Mudflows. debris Oa.us. and rocksIide:s came dc:Mrn the canyon walls innumerous places during the most intenserainstonns on January 16. 17. and lB. InMojeska Canyon. one 6Q.year~ housewas destroyed and two u.oere damaged.The damage is estimated to be more than$ J million including flocxl damage. InSantiago Canyon. part of a stable was

Photo 4. The eMecllVene5s of contrasting slope-protectIOn measures is demonstrated alongthiS west·lacing gladed slope above Calle Familia, San Clemente. Photo by Slang Tan.

". CALIFORNIA GEOLOGV SEPTEMBER/OCTOBER 1993

10. Los Angeles "Laurie DriveR Landslide (Studio Cay).On March 14. a home on the northern slopes of the SantaMonica Mountains was evacuated. By March 24, the home wasseverely distorted and the street paving buckled. On lOp of theslope behind the destroyed house is a JOO-fool-Iong (90-m-long)headscarp. Damage is probably $600,000.

11. Agoura Hills ~Vio Amistosa~ Landslide. One housewas destroyed and two placed at risk when a slump occurredalong a steep slope in a stabilization fiJi on February 15. Damageto privale and public prop.erty approaches $700.000. On March24. about 1 mile (I to 2 kmJ east of the ~Via Amistosa R land­slide, a large slump with a 300·foot-long (90-m-long) headscarpfanned on a west-facing slope above several homes on Provi­dent Road (Photo 11). No homes have yet been damaged by thislandslide. which lies within the jurisdictions of Los AngelesCounty. Calabasas, and Agoura HHJs.

12. Calabasas "Elm Drive~ and ~Valdez Rood~ Landslides. On March 28, lancIsIides developed in the Santa MonaMountains near Mulholland Highway. Another landslide dam­aged the pavement. destroyed a retaining wall. and threateneda home along Valdez Road.

San Bernardino County

Rim Forest -Black/oot Trail Eost~ Lands/Ide. (Not shoY.mon rlgure I.) In late January. one structure on the precipitousedge of the San Bernardino Mountains in the village of Rim

Photo 5. Contrast In performance ot brush-planted vs.grassy slopes along calle Familia, San Clemente.PhotobySssng Tan.

Photo 6. The "La Ventana" landslide. San Clemente/Dana Point. view toward north. ocean bluff collapsed thenight 01 Febtuafy 22. 1993 destrOYing lour homes. When landsllde was imminenl. rool and walls o! white struc­ture on right were CUI with saws In an attempt to salle part 01 structure. Photo by Siang Tan

CALIFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993

101

Mahbu~1

LESSO S lEAR ED

d m n tTilt In

SlOpe Pro ectlon

28 C FOR IAGEO OGY SE BEA!OCTOBE~ 1

Pholo 8 "CastellammaJe Mesa~ landslide. Pacific Palisades. los Angeles Home damaged bylandsrlde January 1993. Photo by Slang Tan

rarely developed except. perhaPS. in O'd!f.

steepened road cuts.

One of the places \lJhere .soil slips anddebns flows formed is along the Sleepsouth·facing slopes of the Puente Hills inYorba Uncia. Surficial soil slip and debns·now scars are abundant in sltty rocks ofthe Yorba Member of me Puente Forma·tlon along the Whittier Fault Zone. Therocks' composition (predominantlY siltysandstonel. the uptihed and sheared beds'unusual steepness along the recentlyactive Whittier Fault Zone. and intenserainstorm activity all contributed to lheconcentration of surlicial slope failures.Expensive homes, built at the base ofthese hills in recent years. were protectedby well--engineered and well-built debrisbasins and dams because of the nearbyslopes' lX'tential for generaling debris(Photo 12). Awareness of the lX'tentialfor slope inStability. and proper planningand engineering. can mitigate the harm­ful effects of ramszorm-triggered slopefailures.

Pooto 9. "Castellammare Mesa" landslide. PaCIfic Pallsades. Los Angeles. Asphalt pavement·capped columns (piles) previously positioned to slabilize street. now protrude. Note erach Instonewor\l. on Iront 01 house Photo by Siang Tan.-

such as CaIIe Familia. Hen!. the approxi­mately SO-fOOl-high (24-m·high). wcst­facing slopes had been graded al a slopeangle of 1-1/2 to 1 labout34 degrees}.Techniques used to proteCI the slopematerials from erosion or slippage \AIElreeasy to compare among neighbonngproperties. Photo 4 shovJs a syslem ofwell-constructed drainage ditches andcnannelways, combined VJith a densegTCMld CO'J(!1', protecting the cel'ler prop'ef!y In contrast. slopes on both sIdes-p(aflted only with grass \'Jere damaged byshallow landsliding and by erosion of thesoil mantle. [n Photo 5. the slope on theleft 1,l.a5 planted VJith grass along WIth apattern of drought-resistant bushes withdeeper root systems thaI held the slopeintact. The slope to the right. althoughplanted \lo'lth a feIN deciduous trees. IsfTlCl6tIy grass <n:i it. 100. IosI much of thesoil cover and grass.

Oebns-Aow Protectlon

Duong the most intense periodsof rain in January and February. ne\lo'S

repol15 VJere filled with references to~mudslides.~ especially affeCIing PacIficco..t H;ghway ana roads'ln the SarilaMonb MOUQlains. The term Mmudsl~.~

allhOUgh vemacular for the meola, Is a.misnomer because mud does nOI slid~.

11 flows. Terms such as mudflOVJ or

debris flow are used by 50eflusts 10

describe $haftou.rsSope-fallure phen0m­ena. In recent decades. surfJcial sloperailJres. triggered by prolonged andintense rainstorms, were wKl.espread insouthern Califomia This year. despiteheavy rain in wlnerable areas. floo.us

MItigation Strategies:Geologic Report Review

Each natural disaster reminds us thatthere are steps that can and .should betaken to redoce losses associated WIth itWhen disruptions to business and travel

CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993 '"

Photo 10. landslide in Mount Washington district of los Angeles dropped thesmall cottage (right of center) 15 to 20 feet (4 to 6 m) and created precipitousslopes (plastic covered) behind two other dwellings. Photo by Slang Tan.

are added to actual physical properlydamage. losses from California landslidesaverage about $100 million a year. InCalifornia, property damage most oftenoccurs to older structures built beforeadoption and enforcement of modemgrading codes and ordinances. Neverthe­less, landslide damage or destruction ofso many recently built structures provokesus to consider what else needs to be doneto reduce or eliminate landslide hazards.

One response to the continuingproblem of landslide haz-ards in California was thepassage of the LandslideHazard Identification Actin 1983. It established.via the Public ResourcesCode, the Landslide Haz·ard Identification Pro}ectwithin the Division ofMines and Geology. Thel.:.andslide Project prepareslandslide hazard maps forCalifomia's urban andurbanizing areas. Theaim is to assist cities andcounties in fulfilling theirresponsibilities lor protect­ing public health andsafety from landslide andother unstable slope haz­ards (see page 132. thisissue). The maps includeinventories of existinglandslides and assessmentsof landslide susceptibilityin Wldeveloped terrain.

Although the LandslidePro}ect maps help localgovernment plannersincorporate safeguardsinto the Safety Element ofthe General Plan, thereare still ~weak links" in thechain of public protectionfrom slope failures. Most jurisdictions inCalilomia require geological or geotech­nical studies prior to development onhillsides. Unfortunately, the quality ofreview of these studies varies greatly. Notall local governments have qualified staffand/or retain professional consultingfinns to perfonn reviews. This variablereview of plans for development has prob­ably contributed 10 some of the slopefallures in relatively new developmentsin areas where "we should have known

belter." A remedy. as proposed by theInteragency Hazard Mitigation Teamconvened by the Federal EmergencyManagement Agency (FEMA) and Officeof Emergency Services (DES) to investi­gate the California Severe Winter Stonnsdisaster of January-March 1993. maybe to establish minimum standards forreview of geologic reports. possiblythrough state legislation.

Mitigation Stralegies­Hazard Abatement Districts

The catastrophic loss of homes dueto landslides during the January-Februarystonns 01 1993 provides a sad reminderthat, in many cases. the slopes did nothave 10 fail. The severity of failure couldhave been greatly reduced if mitigatingmeasures had been taken prior to theinevitable rainstonns. Installation andmaintenance of dewatering and drainage

systems within ancient, but metastable,landslides or in larxlslide'prone slopes canbe effective in reducing. if not eliminating.landslide hazards. How can this be donewhere a number of existing homes arethreatened?

The Beverly Act of 1979 provides lorthe establishment of Geologic HazardA~t DistriclS (GHADs) as part ofthe2ublic.Resources COOe (0Ishansky.1986). The..statul.lil allOVJS for the fonnalionof local assessment dislricl$ to prevent,

mitigate, abatel or con­trol geologic hazards.As defined by the Act,a "geologic hazard~

includes ~an actual orthreatened landslide,land subsidence. soilerosion. earthquake.or any other natural orunnatural movementof land or earth."

The first and mostsuccessful CHAD. theAbalone Cove LandslideAbatement District inRancho Palos Verdes,was established in 1981to dewater, and thusstabilize. a 600-acre1243-hectare) landslidethat threatened 100homes. The GHADhelped deal with a prob­lem that extended acrossproperty boundaries.However. the law autho­rizing GHADs is notwell known to eilher thepublic or local officials.It is evidenl that it needsto be widely publicizedto promote additionalGHADs to mitigate land­slides or landslide-pronehillsides.

Homeowners in San Clemente. incooperation with local officials. are fonn­ing a GHAD for an area along the oceanbluffs. Property owners in Malibu havealso launched efforts to fonn a GHAD.They have already obtained a Plan ofControl (an analysis of problems and listof options), which is required before localgovernment will consider establishmentof an assessment district.

•

''0 CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993

Photo 11. Ten-lo-l5-f()()( (3-lo-5·m) headscarp ttlal eKtends 300 feet (90 ml aJong large slump formed on March 24 on hillsideal:low! Provident Road in Agoura HIUs. Crews 01 women pnsonefS (in yellow ram gear) are placing plaStIC sheeUng and sanclbagsacross the headscarp to prevenl additIOnal water from enlenng the slide mass. Photo by Pam IMne.

ACKNOWLEDGMENTS

We are grateful for discussions heldin the field with several geologists IoVOrk­ing on various landslides. Mark Mcuny

with Eberhart and Stone. Inc. providedinformation about the ongoing d0Nater­ing and investigation of the •Avenida deSantiago· landslide in Anaheim Hills.Jim Sosson. of SIosson and Asscw:iales,disa tSsed landslides in Agoura HiRs. WesR_. San Bemanlino County ge0lo­giSt, prcMded IIlfolTT'lation about the-Rim Forest- Iandslide_

REFERENCE

Olshansky, R.B., 1986. GeologIC haZardabatemenl dlSlricls: CALIFORNIAGEOLOGY, v. 39, no. 7,p.I58·159

Pholo 12. SoIl stlp and debris-flow scars behind new hOmes in Yema Unda. Note cobblegravel-laced dam buill to Intercepl and retain debris behind home. Pholo by Siang Tan.

CAUFORNIA GEOLOGY SEPTEM6€RIOCT08€R 1993 '"

California's Landslide Hazard Identification ProjectALLAN G. BARROWS, Senior Geologist and Manager

Landslide Hazard Identification ProjectDivision of Mines and Geology

>

•Photo 1. Landslide damaged homes, Palos Verdes Peninsula, southern California, early 19605. Photo by George B. Cleveland.

INTRODUCTION

U nderneath California's famous,or infamous, lifestyle and rapid-ly expanding population lies a

dynamic geclogic environment. Califor­nians Uve in a region that is al times rest­less, and in places, WlStable, exposed togeologic hazards ranging from catastroph­ic earthquakes to troublesome landslides.For more than 30 years. the CaliforniaDepartment of Conservation's Division ofMines ard Geology (DMG) hM helpedreduce risks from geologic hazards bygenerating and disseminating infonnationabout geologic factors that affect the livesand property of Californians.

Accelerated development of poten­tially unstable hillside terrain surrounding

dlies has increased exposure to landslideproblems (Photo 1). It is estimated thaiCalifornia landslides cause more than$100 million in 10sses and. on the aver­age, kill five people a year. Experiencehas shoo.vn that better planning and grad­ing coukI prevent 90% or more of these

"""'.1be recurrence of fatal and costly

landslide disasters in California promptedthe legislature to pass the LandslideHazard Identification Act (see inset,page 134). It provides a landslide haz·ard mapping and technical advisory pro­gram in urban and urbanizing areas state­wide. 11le program assists counties andcities in protecting the public health andsafety from landslide and other unstable­slope hazards. As directed by the Act,

DMG established the Landslide HazardIdentification Project (lH1P), The primaryfunction of the lHlP staff is to preparemaps that infonn local government plan­ners about the distribution of existinglandslides and the relative susceptibilityto landsJiding of aU natural slopes I.Vithintheir jurisdictions.

GEOLOGY AND DISTRIBUTIONOF LANDSLIDES

Why does California have so manylandslide problems? California possessesall of the factors and conditions necessaryto produce VJidespread and abundantslope-failure problems. A simple mapdepicting relative amounts 01: larrlslK1lngin California (Alfors and others, 1973)shows that landslides are generaUy

'" CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993

• Relief - Sleep. dissected terrain wlthhigh slopes;

concentrated in hilly 10 mountainousregions VJithin 100 miles (160 km) ofthe coast. Since much of Califomia'spopulation and many of its most rapidlydeveloping areas also lie within this belt.problems wlth landslides abound.

1 • Weak earth materials - including a.. great variety of poorly consolidated

Cenozoic marine sedimentary rockscontaining abundant clay minerals orhighly sheared and deformed Meso­zoic Franciscan Complex rocks:

200

'"

,so

so,

"""",,..

Many attempts have been made tocalculate (or estimate) the annual dollarlosses caused by landsliding in Califomia.In preparing the Urban Geology MasterPlan 20 years ago, DMG geologists esti­mated statewide landslide Josses primarilyby extrapolating data from damage

nia (Photo 2). Similarly. followinga long drought, southem Califomia wasinundated by rainfall in 1993, aceom~panied by a major landslide and flooddisaster (see page 123, this issue).

1978"""",

so

"Xl

,so

Califomia suffered several years ofdrought during the late 19705. Thenin 1978 when rainfall was more than 200percent of normal, a $1 73·million land·slide disaster occurred in southern Califor'

The most difficult part in compiling thisgraph was distinguishing flood damagesfrom the estimates. For instance. January1982 San Francisco Bay Area stonnstriggered landslides that caused $66 mil·lion of the $300 million in losses attributedmostly to flooding (Creasey, I988).

Mlllio" $ Lasses Perceot Rainfall200 ,...--------------------~,so

Selecied Years of California Disasters

• Million Dollar loss _ .,. Mean Ra,nfall

Figure 1. Relationship between abnormally high rainlall and property losses due to landslides.DISasters occurred primarily eilher in northern or southern California during a specific year.Dollar-loss estimates are normalized to 1982 consumer price indel<.

~rthquakes - trigger slides. lheyare symptoms of an active tectonicenvironment where uplift adds poten­tial energy to slope materials andrerIe\AIS elevation of eroding termin.Folding and faulting fracture (weaken)rocks:

Climate/water - occasionalextremely wet years with intenserainstorms. Coastal mountains trapmoisture from clouds blown in fromthe ocean;

" .

•

Although 1andsIides can be foundin the Klamath Mountains. the SierraNevada. and the desert regions, they

•are much more abundant in the Coast.. Ranges. Transverse Ranges. and

Peninsular Ranges because of:

• Construction activities - steepenslope angles. remove support, addloads. and change drainage regimes.

For a detailed discussion of the causesand distribution of landslides in Califomia,see the excellent series of articles in theSeptember through November. 1%7issues of Mineral (nformation $eroice(C\eveIand. 1967; Morton and Streitz,1967a. 1967b).

LANDSUDE DAMAGESAND DISASTERS

Every year that rainfall is 100 10 200percent of nonnal. dramatic news of"mudslides~ and evacuated or destroyedhomes reminds Californians they live ina "landslide state.~ lhe relationship be­tween financial losses for several landslidedisasters and excessively wet years dUringthe past 40 years is shovm in F'l9ure 1.

Photo 2. Destroyed homes and swimming pool on headscarp 01 rainstorm-triggered slump.Encino, SOUIhern California, March 1978. Photo by F.H. Weoer, Jr.

CAUfOANIA GEOI..OGY SEPTEMBER/OCTOBER 1993 '"

records in the Los Angeles area. Theyconcluded, uUnder present conditions. itis estimated that losses due to landslidingwill total almost $10 billion in Californiabetween 1970 and the year 2000~(Alfors and others, 1973). The annual losswould, accordingly, approach $33 mil­lion. This estimate was made with theassumption that nothing would be doneto reduce landslide hazards, such as estab­lishing and enforcing grading codes. Itappears that, when the landslide lossesalong the stale's roads are included inestimates. Callfornia's losses are about$100 million annually (Brabb. 1989).

DMG's Urban Geology Master Plan(Allors and others, 1973) concluded that90 percent of the projected landslidelosses could be prevented if steps suchas these VJere taken.

• Map landslides and landslide-proneareas at 1:24.000 (1 inch - 2,000feet) or larger scale.

• l.!lse the planning process to guidedevelopment in those areas with thefewest uncorrectable problems.

• Require developers to use engineer­ing geology meth<x:ls.

• Establish a grading division in localgovernment to enforce the gradingordinance (Chapter 70 of the Uni­fonn Building Code).

LANDSLIDE HAZARDIDENTIFICATION ACT

Given the landsliding and associatedhazards in California, and stimulated bythe dramatic 1982 Bay Area disaster, thelegislature passed the Landslide HazardIdentification Act. In the context of gener­ally recognized landslide-hazard mitigationstrategies such as those previously listed,the state's role in helping local govern­ment deal with landslide hazards shouldbe in the fonn of mapping and adviceto planners.

One important approach to mitigatinglandslide hazards involves land-use plan­ning. California requires that local govern­ments adopt a General Plan, which mustcontain a Safety Element including rec­ommendations for dealing with landslidehazards.

GOALS AND OBJECTIVES OFTHE LANDSLIDE PROJECT

The goals of the LHIP are to reducelandslide hazards in order to prevenl orreduce property losses in developingareas, and 10 improve public safety byidentifying and delineating areas subjectto the dangers of rapid slope failures,such as debris nOVJS and "mudslides.~

The objectives of the LHIP include1) identifying and invenlorying existinglandslides. deposits, and related slope­failure features. 2) analyzing and evaluat­ing the relative landslide susceptibility ofterrain subject to urbanization. 3) aidinglocal government and state agendes inland·use planning and site evaluation offacilities. 4) providing infonnation usedfor review of building-pennit applications,5) answering landslide hazard questionsfrom the public and private sectors, and6) aSSisting public safety agencies byinspecting and assessing slope-failurehazards in terrain affected by wildfires.intense rainstorms or earthquakes.

HIGHLIGHTS OF LANDSLIDEHAZARD IDENTIFICATION ACT

Adds Chapter 7.7, DIVISIOn 2. Sec­tion 2670-2666 to the CaliforniaPublic Resources Code

Mandates establishment at a land­slide Hazard IdentIficatIOn Programwithin DMG

Includes·A mapping and technicaladvisory program to assist local andstate agencies in their land use andpermitting decisions in areas sub·ject to landslide hazards."

ReqUIres maps 1) show •...landslidehazards within urban and urban·izing areas althe state. 2) •...iden·tify landslide hazards and be at ascale suitable lor local planningpurposes:

LANDSLIDE HAZARDIDENTIFICATION MAPS

The primary activity of LHIP geolo­gists is to prepare maps of landslide haz­ards in urban and urbanizing areas of thestale. The Landslide Act specifies land­slide hazard mapping priorities that renectthe I) criteria that address the severity of

the hazard. 2) commitment of local gov­ernment to share the costs, 3) existenceof data, and 4) need for more infonnationon landslide hazards to support mitigationprograms.

To accomplish the task. LHIP geolo­gists typically prepare a group of maps.designated by LHIMft (Landslide HazardIdentification Map number), consisting oftwo to four plates. depending on localslope conditions and adequacy of existinggeologic maps. These include:

• Plate A - Relative LandslideSusceptibility Map (interpretive.symbolic) (Figure 2)

• Plate B - Landslides and RelatedSlope Features Map (inventory 01existing failures) (Figure 3)

• Plate C - Geologic Map (optional)(displays rock units that affect slopestability)

• Plate 0 - Relative Debris-RowSusceptibility Map (optional) (recordspropensity for dangerous, rapid fail­ures) (Figure 4)

Since the relative landslide susceptibil­ity of an area depends on severallactors.the observational data recorded on PlatesB and C should pennit the map reader tofollow the reasoning used in preparing thesusceptibility map. Furthermore, the map01 landslides and related features docu­ments existing slope failures and serves asa guide for review of site-specilic reportswhen required by local building and safetydepartments that issue building permits.

The maps are generally produced at ascale of 1,24,000. This scale is preferredby planners because it is compatible withother kinds of source data used in makingland·use decisions. However, maps al1: 12,000 (1 inch ... 1,000 feet) have alsobe€n prepared where landslide density orslope conditions justify it. Furthermore.after the LHIP staff gained experience,it became clear that different and innova­tive approaches to mapping were desir­able to increase the area mapped or therate of mapping, or to provide informa­tion tailored to local government needsand concerns. Therefore. some of thestudies released or completed by geolo­gists in more recent years do not containmaps typical of the earlier open-filereports produced by the LHIP.

,,.. CAUfORNIA GEOLOGY SEPTEMBER/OCTOBER 1993

I1 Kilometer

IScale: 1:24,000

0.5I

I0.5o

oI

,.

,

u

,u

Figure 2. Sample relative landslide susceptlbllity map. 4 " most susceptible; 3 " generally susceptible;2" marginally susceptible: and I " least susceptible. Portion of LHIM 112. west-hair Newhall quadrangle,Los Angeles County. Plate 2Al, From Trotman, 1986.

CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993 ,os

•

F

SYMBOLS

A - oertnlte landslideB - Heodwol 01 slump Of block glideC - Probable landslideo - Questionable IondSltdeE - SmoU landSlideF - Mulliple S/TlOlllOndslk:lesG - EarlhllowH - EorthllOw complexI - Smon earlhllow

J - Debfis llowK - Debfls-llowamphitheater/siopel - Soil creep

Figure 3 Sample landslides and related slope features map from northern Cahforma Portion of LHIM 11'13 south ollnlerslale BO, Cordelia·Valllllo area. Solano and Napa counties. Plate 138 (scale 124,000). From Manson, 1988.

,,. CALIFORNIA GEOLOGY SEPTEMBEAIOCTOBEA 1993

I1 Kilometer

Scale: 1:24,000

0.5I

I0.5A

•

A

..

u

u

'pring",

FIQure 4. Sample relative debrls-!low susceptibility map. Compare with same area shown in Figure 2.C =most suscepllble: B = marginally susceptible; and A '" least susceptible. PortIOn of LHIM #2. west-halfNewhall quadrangle, Los Angeles County. Plate 2A2. From Treiman. 1986.

CAliFORNIA GEOLOGV SEPTEMBERlQCTOBER t99J

FtgUfe 5. Index map of landslide Hazard Identification Maps.Numbers on map refer to LHIM numbers.

Landslide HazardIdentification Maps

_____1

• Released as Open-FIIe Reportslhrough 1992

u<w ....._, "'..• ....._... ...., W'2_~ ....., P_ol o.tlk>_ eo-.~ ....,• ............... ...., EJ2v.v.w~ ....• Rwacho s.ru F. a.-ongIe ..", En_a.-...., ....• --- ..".. Nl2o-~~ ...." snF~c......., ...." ~JoM HiII; .....ell lllI_21

" Cor~lIIlI,o Are. M".. v...... _VICltllly 11917

" lake AnOWheadJ9ig ae. laI<' ...,.. Clear lek' _ Vocntv .. "" NI2 Blad< SlaI e...von Quadrangle 00·19.. V~..ftl F. ~lItlQIe$ .",.. Cac!'40"" and Vieini1y .. "ro NI2 CaIabasM Ouadrangle 8918

" u..rmool Valley _ V""""Y 91.02

" $OnI V*" Ai" 00·17

" C"V oll.lk~ 91-16~ SanV"*'l1~ e.-angIIf .""" l .........'8Jfon HoI Spnng$ 0uacIr...... "..3 EJ c.,on0..-...., 92113 .......~a.-Ingle 112-12

'" "'-"'~T"!N'l'''' LIl~ ........"""-... PrOJects In Progress or Initialed

ll'l1992

""" ...........• SEi.._~a.-.....

" ~p-~" San ........e...-.~a.-.v-" T...~'P_~~ Elr_ V..,_W'2 w_ e.-a.-angIM

" •o...a~w San Diego e-vy

"~ EJ2o...~

" I a.-&'>QIIea--NW $an o.cI<> Coony

633 25

4

7

1534

2072

22

95

26

31

30

sc

3

21

32

27

". CAUFOANIA GEOLOGY SEPTEMBER/OCTOBER 1993

Since the Landslide Hazard Identifica­tion Act went into effect, 26 LandslideHazard Identification Maps, ranging inarea from 14 to 280 square miles (13 to725 km2) and tota/ing 1,875 square miles(4,856 km2j, have been published asDMG Open-Rle Reports (Rgure 5)_ Mapsof an additional 1,100 square miles(2,849 km2) are being compiled_

A1fors, J.T" Burnett, J.L., and Gay, Jr.,T.E" 1973, Urban geology master planlor california: Division of Mines andGeology Bulletin 198, 112 p.

Brabb, E.E.. 1989, Landslides: Exteot andeconomic significance in the Un~ed

States In Btabb, E.E. and Harrod,B.L., editors, Landslides: Extent andeconomic significance: Proceedings28th International Geological CongressSymposium on Landslides, washingtonD.C., 17 July 1989: AA Balkema Pub­lishers, Rotterdam. p. 25-50.

Cleveland, G.B., 1967, Why landslides?:Minerallnlormation 5eMce, v. 20, no. 9,p.l15-117.

Desert plants bloomed profuselyafter last winters rains. Photos byC.L Pridmore.

LANDSLIDE PROJECT ACTIVITIES

In addition to preparing maps, LHIPgeologists provide information to local.state. and federal agencies, especiallyduring and fol!oYJing natural events thattrigger landslides. They also provideinformation 10 the public. Examples ofLHIP activities include: 1) post-earth-

REFERENCES

Creasey, C.L, 1988, Landslide damage:A costly outcome of the storm in Elleo,S.D. and Wieczorek, G.F., ed~ors,Landslides, floods, and marine ellects01 the storm 01 January 3-5, 1982, in thesan Francisco Bay region, California:U.S. Geological Survey ProfessionalPaper 1434, p. 195-203.

Manson, M.W., 1988. Landslide hazardsin Cordelia-Vallejo area. Napa andSolano counties, california (land-slide Hazard Identification Map No. 13):California Department of Conservation,Division of Mines and GeologyOFR 88-22.

Morton, D.M, and Streitz, Robert, 1967a,Landslides, part 1: Mineral Informationservice, v. 20, no. 10, p. 123-129.

quake landslide reconnaissance and map­ping, 2) rainstoml-trigge:red landslide eventresponse/evaluation, 3) evaluation of de­bris-flow potential in wildfire-bumed areas,and 4) advice to the Governor's Office ofEmergency Services (DES), Federal Emer­gency Management Agency (FEMA), andlocal government planning departments.

MOf1on, D.M., and Streitz, Robef1, 1967b,Landslides, part 2: Mineral InformationSefvice, v. 20, no. II, p. 135-140.

Smith, T.C., and Hart, E.W.. 1982, land­slides and related storm damageJanuary, 1982, San Francisco Bayregion: CALIFORNIA GEOLOGV,v. 35, no. 7, p. 152.

Treiman, JA. 1986. Landslide hazardsn the west 1/2 of of the Newtlal1 quad­rangle, Los Angeles County, California(landslide Hazard IdentificationMap No.2): California Department ofConservation, Division of Mines andGeology OFR 86-6.

CAUFOANIA GEOLOGY SEPTEMBEA/OCTOBEA 1993 ",

DMG Landslide Publications (Exclusive of llilMs)

DMG reports and maps aTe indicated by initials: B ... Bulletin; SR ... Special Report; SP ... Special Publication: PR ... Preliminary Report: MS •Map Sh~t: QFR .. Open-File Report: CG ... California Geology: and MIS ... Minerallnformalion Service. predecessor to eG. An asterisk (') indI­cates an ool--of-print publication (see box below). CG and MIS lilies are included in the lists below. TItles and prices of other publications are in theList of Publicotions Available from the Division oj Mines alld Geology, which can be ordered at no charge. DMG publications other than OFRscan be ordered on the Publicalions Request Fonn on page 148 (altach list if IlCcessary). Order OFRs from Publications and Infonnation.801 K Street, MS 14-33. Sacramento. CA 95814·3532.

ALAMEDA'COLUSA-Landslide and Flood Potential

Along Cadle Creek {eG May 1990}CONTRA COSTA-MS 16: PR 19DEL NORTE---OFR 81-01, 82-21, 83-04,

83-18.83·19,84-07,84-08EL DORADO-1983 U,S. Highway 50

Landslide Near Whitehall, California(CG November 1987)

HUMBOLDT"-Geology 101' Timber HarvestPlanning, North Coastal California (CGSeptember 1977); MS 31; OFA 80·09,82·20, 83·03. 83·06, 83·17, 83·22, 83·23,83·2S. 83·26. 84·09, 84-10, 84-11. 84-34,84-3S, 84·36, 84-37, 84-38, 84·39, 8S-01,8S-02, 8S-03, 8S-04, 8S-0S, 8S-06

LAKE"-Lanclslide and Flood POlential AlongCache Creek (CG May 1990); MS 9

LOS ANGElES"-B 196: Seismically TriggeredlandSlides Above San Fernando Valley(CG April/May 1971): Slope Instabilily andDebris Flows. Los Angeles Area (CG Janu­ary 1979); AE,G. Building Code Review­MudffowlDebris Flow Damage, February1978 Storm -los Angeles Area (CGJanuary 1979); MS lS, 27, 28, 30, 33;OFR 64-01, 66-01, 79-04, 79-12, 82-26,83·03,83·16,83-24,84·01,8449,86·04:SR tOO, 15.2

MARIN--B 202; MS 11; OFR 72-22,76·02, n·1S, 84-22

MENDOCINO"-eoastal Zone Geology NearMendocino, California (CG October 1976);

"The following titles are out ofprint and notavailable for purchase.

ALAMEDA-Landslides and Related StormDamage, January 1982, San FranciscoBay Region (CG July 1982)

HUMBOLDT--Geology 01 Eel River ValleyArea, Humboldt Coonly, California(B 164): Short R9COfd of a landSlide(CG June 1972)

LAKE-Engineering Geology or The GeysersGeothermal Resoofces Area: lake,Menclo<:ino, and Sonoma Counties,Calitornia (SR 122)

LOS ANGELE5--Geology and MineralDeposits 01 San Femando Quadrangle,Los Angeles, California (B 172)

MARIN--Geology of the Marin Headlands(CG April 1974): landslides and RelatedStorm Damage, January 1982, SanFrancisco Bay Region (CG july 1982):Landslicfes of Southern Poinl ReyesNational Seashore (MIS July 1969); Geol­ogy and Geologic Hazards 01 the NovatoArea, Marin County, Calilornia IPR 21)

Coastal Zone Geology Near Gualala,California (CG February 1977); MS 9:OFR 76-03, 76·04, 82-19, 83·S, 83·14,83·15,83·16,83-20,83·21,83-31,83-32,83·33,83·38,83-39,83·40,83-41,84-12,84-13,84·14,84-17,84·18.84·19,84-20,84-40, 84·41, 84·42, 84·43, 84·44, 84·4S,84·46,84·47,84-48

MODOC-Surprise Valley Fault(CG Det:embef t 974}

MONO-$R 150MONTEREY"-Fire ~ Rain" MUdllows: BI9

Sur, 1972 (CG June 1973): Landslide onStale Highway 1; Julia Pfeiffer-Bums SlalePark JCG June 1984); OFR 77-12. 80-07

ORANGE"-Bluebird Canyon Landslide ofOctober 2, 1978, Laguna Beach, Calilornia(eG January 1979}, Slope Failures inOrange County Due to 1978 Rains (CGSeptember 1980): Landslide HazardS inCalifornia: History of Verde Canyon land­slide-San C1emenle (CG AugusI1984);OFR 79-04. 79-08. 83·34. 84-24, 84·27,84·28,84·57,84·58: PR 10; SR 98, 110.Ill, 126, 127

RIVERSIDE-B 178: MS 19SAN BENITo-MS 5SAN BERNARDINO"-MS 1S: OFR 83-3;

SR 113SAN DIEGO"-B 200; MS 29; OFR 68-IS,

82-12.83-3: SR 98SAN FRANCISCO"SAN LUIS OBISPO"-OFR 80·0S, 80·06,

78-17

MENDQCINo-Geology and Slope Stabilily01 the Fort Bragg Area (CG March 1986):Engmeering Geology of The Geysers Ge0­thermal Resources Area; Lake, MendocIno,and Sonoma Counties, California (SR 122)

MQNTEREY-Marble Cone Rre...Effec! onErosion (CG December 1977)

ORANGE--Geo·EnVlronmenlal Maps ofOrange Counly, Calilornla (PR 15); GeoI·ogy 01 Burruel Ridge, Northwestern SantaAna Mountains, California (SR 21)

SAN BERNARDINQ---Geology 01 the SanBernardino Mountains North of BigBear Lake, California (SR 65)

SAN DIEGQ--Sea·Cliff ErOSion at SunselCliffs, $an Diego (CG February 1973)

SAN FRANCISCO-landSlides and RelatedStorm Damage, January 1982. SanFrancisco Bay Region (CG July 1982)

SAN LUIS OBISPo-Geology of lhe ArroyoGrande Quadrangle, Cahfornla (MS 24)

SAN MATEO-Role of Geotechnical Consult·ants and Reviewers for the County 01 SanMateo (CG Augus11975), Landslides andRelated Slorm Damage, January 1982,San FranCISCO Bay Region (CG July 1982)

SAN MATEO"-Geologlc Hazards Along theCoast South of San Francisco (eG Febru­ary 1975): Progression Of Some LandslidesAlong Coast Highway 1 Between ThornlonBeach and Mussel Rock, a Picture Story(CG February 1975); Geology of MusselRock Landslide (CG March 1987): MS 8

SANTA BARBARA-Sea Cliff ErOSion; A MajorDilemma (CG Augusll990): OFR 80·05

SANTA CLARA"-MS 8: OFR 78·11, 78-12,80·11,90·06; PR 17, 18: SP 104

SANTA CRUZO-----eoaSlline Erosion. SantaCruz County (CG Apnl 1979): Impact of1983 Storms on the Coastline, NorthernMonterey Bay (CG August 1983): BeattyLandslide (CG February 1989): CoastalLandslides Caused by the October 17,1989 Eanhquake (CG April 1990); Earth­quake Damage in Soquel DemonstrationStale Forest (CG January 1991);OFR 72-21, 84-06, 90-06; SP 104

SONOMA"-$onoma Counly Hillslides (CGJune 1972); Geology and Slope Stablhly InThe Geysers Geothermal Aesources Area(CG July 1978): Blucher Valley Transta­tional Landslide, Sebastopol (CG August1983): MS 9, 10. OFR 68·12, 79-15, 81·12;PR 16,20: SR 142

TRINITY-MS 12, 31VENTURA"-Geology and Land Developmenl

In Ventura Coonty (CG November 1974)'Landslides in Ventura Avenue Oil Field(MIS May 1953): OFR 72-23,76-05,79·04,83-16,84-01

SANTA CLARA-Seismic Hazatds and Urban­ization in Santa Clara County (CG OClober1975); Geology of the San Jose·MountHamilton Area, California (B 157): Poten~alSeismic Hazards in Santa Clara County,California (SR 107): Studies 01 the SanAndreas FaUll Zone in Northern Ca~fornia

(SR 140)SANTA CRUZ-$anta Cruz Mountain Study

(CG JL:ne 1972); landslides and RelatedStorm Damage, January 1982, SanFranCISCO Bay Region (CG July 1982):Love Creek landslide Disaster, January 5,1982 (CG July 1982); Flooding and SlopeFailure DUring the January 1982 Storm(CG July 1982)

SONOMA-Landslides and Related StormDamage, January 1982, San FranciscoBay Region (CG July 1982): EngineeringGeology of The Geysers GeothermalResource Area: Lake, Mendocino, andSonoma Counties (SR 122)

VENTURA-Geology and Mmeral ResourcesSludy 01 Southern Ventura County,California (PR 14) -

'" CAUFOANIA GEOLOGY SEPTEMBER/OCTD8ER 1993

PUZlLEAmerican Geologic Teaan.

of Foreign Origin

~ geologic .am in the lJriIBI_ origInllIod in _ ~ EnglllllSr='*lI ......... baders.lIIllItrappers narr*1g an ' geograpt*: feature SOiI....es boiiOutBI from -.adler ......... beta- they feud noarpr<lIlriale wcnl in their IIDaIIdaoy a non-EngjIsh wcnl_ '*""'Ill in -1ocaI!I Geok9'" haw aclorI<dwads from ""'" longo_lor_,"""" ft Is ooI",p'*'lI thal ""'"glodaIlIIllI_ from .....guages 01 AIpne roorle. ""'"arid desert Ierms ... _ a Sronlsh.lIIllI ""'" "**'II boo 110m theCornish .......

-3 8 I ••• lind .............a ••••~

7 Seo .,10 " ..--• Buiii*d"'" bIadl (OennM)11 ~wdC:O'W ....~12. GbMng cbId~*) C2 WOIdI}-11 A IPIIIII tal group~14 ........_~"**III-1&T~ ........ _ ... gIIlCiII..-" ...... lIWc::lnIdIpi III ~ (GermwI)22 ExIInItve ~.. (FNnch)23. GlIIdIr or hOle~24.QlKW (F~2&, Long d\IlIn of__ (MI*:)

28. Iron hi! (ComIIh)28. SIIy (prObIbIy wtl_"1dtlIowl_mn)~--,30 DlMp era In. __ (FNnch)31. "'WIndClw" In,...,.,. (German)

-., -Rough'" (lIs 1I1an)2. EtOlllar'lll aI ~3. SmII pUonc rocIl-.0-.-...._,5. All....till (FNnm)..~.,.group (AuIIIIn)7.c:.n.-_-_"a.Nc_"'~'111,lL Low ai__..~

13. Srnoclth... (I ,. III••1$ Ic:a""~...__(NoI.._ .

17u. ~

,..81M_ w 1IIIndMIl nIIIIn---19. Productol d ~

20. <MrIIruM CfNncI'421, CrplIII rodl C8IlIW'~25. .,.~r 01 CQemwt211. 01 1'111"'-----=-

CAUFORNIA GEOlOGY SEPTEMBERIOCTOBEFI 1993 ,.,

TFAOIER FFAnJRE

Toe of skA'np.type landslide that destroyed home on Buena VISta Way. Laguna Beach.CaJdOff1la. March 12. 1993 (ThIS pholo nol part of any slide set) Photo by Slang r...

GEOLOGIC HAZARDS SLIDe SETS

Unique sets of 3Smm slides depictinggeologiC hazards throughout the worklare available from the NalK>nal Geophysi­cal Data Center (NGOC). These specialslide sets provide an affordable educa·tional tool for students, scientists. andf10Illcchnical adults.

Each slide set consists of 20 colorand/or block and white slides. Back·ground material. dates. locations, anddescriptions of effects are induded

MISCELLANEOUS SUOE SETS

lBndsl_Oeplcts diverse types of landslides

and mass wastll19 in the Uruted SCates.Canada. Ausualia. Peru. and 5.wltzerland.Of partlCUaT interest are 1I'leWS of thefamous 1903 rock slide at Frank.Aberta. Canada. which COYefed thetown in 2 minutes, and the 1970 earth­quake-induced snowsIide that buried thetQlU.o1lS of Yungay and Ramrahirca inPeru. (color 647·All-0(6)

Tsunamis - General

Depicts advancing waves. harbordamage. and structural damage fromseven tsunamis since 1946 in the Pacificregion. 1ne set includes before-and'aftervkMrs of Scotch Cap Ughthouse {theAleutian Islandsl. which was washedaway by a wave of more than 100 feet(30 m). (b&w/color: 648-All-<X>1l

Rebel Gobe Slides

ConlalOS 14 global views of earth inhjI coIof shaded relief. sha.vlng land andundersea terrain. The planet is seen fromvantage points over the poles and eachmajor ocean and mass. Also included isa rectangular Mercator pro;eetion of thewhoie earth. as......ell as displays of crustalplates and lheir relationship 10 worldseismic aetMty. The images are com­puler-generated from a digital databaseof oceanic: bathymetry and land topogra­phy. (color: 931-Al1-oo1)

EARTHQUAKES

Earthquake Damage - General

Illustrates effects caused by 11 earth­quakes in seven countries and four of theUnited States. Pictures show surface fault­ing. landslides, soilliquefactlOO. and struc­tural damage. This set gives an overviewand summary of earthquake effects.1ooIo<,647-All-OOI)

Earthquake DamageSan Franctsco, CahlomiaApril 18, 1906

locludes a panorama of San Franciscoin flames a feu.r hours after the earth·quake tb/w: 647-Al1-O(2)

Earthquake Damageto Transportation Systems

Depicts earthquake damage to streets.highways, bridges, overpasses. and rail­roads caused by 12 eal'1tq.Jakes in Guate­mala. Japan, Mexico, Annenia, and fivesites in the Uniled States, Views of struc­tural damage to the San FranciscO""

Oakland Bay Bridge and the NimitzFreeway a-88O) resulting from theOctober 1989 earthquake are included.(b&w/color: 647-A 11-{)()4)

Earthquake DamageMexICO City. Mexico, September 1985

Shows types of damaged buildingsand major killds of structural failure,(color: 647-A 11-003)

Earthquake Damageto Schools

Nine: destNCliYe earthquakes in theUnited States and eightea~ Ir'I

other countries from 1886 to 1988 aredepicted The seI graphically illustrates thedanger maJOr earthc,.Jakes pose to schocXstructures. (b&w/ooIor: 647-A11-<>OS)

Earthquake DamageGreat Alaska EarthquakeMarch 1964

Shows geologic: changes, damage tostructures. transportation systems, utilities,and tsunami damage. Feafures the effects

-'" CAUFORNIA GEOLOGV SEPTEMBER/OCTOBER 1993

­..

teacher feature continued.._

of fOlJr major landslides in Anchorageinclu::ling Fourth Avenue and TurnagainHeights. (color: 647-Al1-007)

Earthquake DamageSouthern California, 1979-1987

Shows eanhquake damage from thefollowing events: Imperial Valley. 1979;Westmorland, 1981: Palm Springs,1986: and Whinier. 1987, Collapsedbuildings caused by the Whinier NarrOlAlSeanhquake are included.(color: 647-A 11-008)

Earthquake DamageCentral California. 1980-1984

ShcMrs eanhquake damage from thefollovJing events: Uvennore. 1980:Coalinga. 1983: and Morgan Hill. 1984.Collapsed buildings in Coalinga's doum­tQ\IJTI are included,(color: 647-A11-009)

Earthquake DamageThe Armenian Soviet Socialist Republic,December 1988

Includes damage photographs taken inand around the devastated cities of Spitakand Leninakan where there were 25,000deaths. Illustrates vulnerable structuraltypes, Shows that Inadequate buildingconstruction combined with shaking froma moderate eanhquake can result in highdeath tolls and tremendous economicloss, (color: 647-A11-011l

Earthquake DamageLorna Prieta, October 1989Set 1- Loma Prieta Vicinity

Includes damage in Boulder Creek.Aptos. Los Gatos, San Jose. Santa Cruz,Scott's Valley, and Watsonville. The slidesdepict earth cracks and structural damageto homes in the Santa Cruz Mountains.(color: 647-Al1·.Ql2)

Earthquake DamageLoma Prieta, October 1989Set II - San Francisco and Oakland

Highlights the damage in the MarinaDistrict of San Francisco. The set alsoincludes photographs of the damagedbui\mngln"1MClmI~.h()( Market Streetwhere five deaths occurred. the nowfamous damage to the San Francisco­Oakland Bay Bridge, and the Cypress

section of lhe Nimitz Freeway (1-880)where 41 deaths occurred(color 647-AII-013)

Earthquake DamageNorthern Iran, Engineering AspectsJune 21, 1990

Depicts damage resulting from inten­sive ground motion and soilliquefaclion.It shows damage to buildings of varioustypes, including unreinforced masonry,steel structures, and concrete buildings,Damage to infrastructure is also shQ\IJTI.(color: 647-AI1-014)

VOLCANOES

Volcanoes in Eruption. Set I

Depicts explosive eruptions. lavafountains and flQ\AlS. Sleam eruptions.and fissure eruptions from 19 volcanoesin 13 countries. Volcano types includeSlrato. cinder cone, complex. fissure vent,lava dome. shield. and island·fonning.Views of Kilauea's fire fountains, a nighteruption of Paricutin. and the 1980 erup­tion cloud of SI. Helens are included,(b&w/coIor: 739-A 11-001)

Volcanoes in Eruption, Set II

Depicts ash clouds. fire fountains,lava flows, spaller cones, glowingavalanches, and steam eruptions from18 vokanoes in 13 countries. Volcanotypes include: strata, cinder cone. basal­tic shield. complex, and island-forming.Highlights include a night exposure ofelectrical discharge accompanying aneruption, and an eyewitness drawing ofthe famous eruption of Krakatau in1883. (Slides in this set do not duplicatethose In Set I. however several of thesame volcanoes are represented in bothsets.) (b&:w/color: 739-A11-003)

Volcanic Rocks and Features

lIIustrates eruption products andfeatures resulting from volcanism inAustralia. the Canary Islands. NewZealand. Scotland. and the United States.Examples of lava types, ash, cinders.bombs, necks. dikes, and siUs. Aerialviews of Devils TOUIeT, Wyoming. andShip Rock. New Mexico, landmark volca­nic neck remnants. and Diamond Head.famous tuff cone on the island of Oahu.are of special interest.(color: 739-A 11·002)

Hawaii Volcanism: Impact onthe Environment

l11ustrates impact on communities.vegetation. marine life, roads, and coast­lines. Illustrates benefits of volcanism suchas geothennaJ poy.oer, increase in landarea of the islands, and opponunities forviewing and studying volcanism in relativesafety, Inclu::les views of eruptions thattook place in the 19805 at Kilauea andMauna Loa. (color: 739-A 11-005)

The Eruption of Mount Saint Helens.May 1980

Includes pre-May 18th (1980) erup­tions. the major May 18th eruption, anddevastation caused by the major eruption.Shows effects of the eruption includingthe blast area. mud flows, ash fall, andaltered terrain.(color: 739·A 11-004)

Hawaii Volcanism: lava Forms

Includes views of lava fountains. lakes,cascades, flows. spatter. and lava entryinto the sea from eruptions occurring inthe last 30 years. (color: 739-A 11-006)

Mount Pinatubo; the June 1991Eruptions

ShovJs the early stages of the eruptionphase, the cataclysmic eruption of June15. and its aftelTT\3th. Subsequent calami­ties caused by the ash, pyroclastic flows.mud flOVJS. and flooding are also shown.(color: 739·A 11-007)

SOON TO BE RELEASED

• The Crater Peak (M!. Spur)Alaska Eruptions of 1992

• Environmental Hazards andMud Volcanoes in Romania

• Cape Mendocino Earthquakesof April 25 and 26. 1992

The slides arc $30.00 per set exceptfor the Relief Globe Slides, which are$45 per set All orders musl be prepaid.For more Information or 10 ploce anorder, conracl:

National Geophysical Data Center325 Broadway, E/GC 1, Department 897

Boulder, CO 80303-3326'8' (303)497-6277 or (303)497-6419

FAX (303) 497-6513

CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993 '"

Landslides

LANDSUDfS/lANDSUDE MmGA­nON. Reviev.>s in Engineering GeologyVoIwne lX. Edited by James E. Slosson,Arthur G. Keene, and Jeffrey A. Johnson.1993. The Geological Society ofAmerica, loc.. P.O. Box 9140, Boulder,CO 80301. (800) 472-1988.120 p.$45.00 iocluding shipping and handling(prepa~nt required). hard cover.

This volume is a collection of casehistories of landslides and legal casesaffecting engineering geology. Subjectsinclude compound landslides, surficialslope failures in residential areas, thecoocept of ~reasonable care,~ andproperty evaluations and treatments.Pariicular landslides studied includethe Mameyes (Puerto Rico, 1985).Topanga (California, 1978). AbaloneCove (California. 1974, 1978), andThistle (Utah, 1983). One paper coversrecent developments in mitigation tech­niques; otners address mitigation usinghorizontal drains (Padfic Palisades,Califomia) and ground-water disposal(Palos Verdes Peninsula, California).

Coastal Studies

UVING wm; TI-lE CAUFORNIACOAST. Edited by Gary Griggs andLauret Savoy. 1985. Duke UniversityPress, Box 90660, Durham, NC 27708­0660.(9191687·3600.394 p. $18.95,soft cover, $37.00 hard cover.

Structures and/or utilities are threat­ened along 125 miles of er<Xling coast­line, and unplanned development contin­ues on scattered stretches. The editorscollected discussions of coastal processes,problems, damage mitigation, and plan­ning and regulation SO Californians couldmake infOl1T'led de<:isions about building,buying, and living on the coast. The1, 110-mile coast is evaluated in 12 sec­tions, with maps delineating hazardousareas and erosion rates. References andsources of coastal infonnation are listedin appendices.

COASTAL STABIUZAllON: [nnova­tive Concepts. By Richard Silvesterand John R.C. Hsu. 1993. Prentice-Hall,Inc., Order Processing Center, P.O. Box11073, Des Moines, 1A 50381-1073.(515) 284-6751. 578 p. $%.00, hard

Coastal stabilization involves a knowl­edge of fluid mechanics, wave theory.sediment characteristics, and the change­ability of the sea. This book presents thevarious theories involved in longshoredrift and associated fluid motions. Despitethe mathematical sophistication, descrip-

tive discussion outlines the many variablesthat cannot be included in such theory.This is intended to present a word ofwarning against using the theoreticalapproach without due thought for theproblems as a whole. There are manyvariables in nature and W€ should viewcoastal problems with this in mind.

The book covers the traditional topicsof wave motion, beach processes, coastalerosion, and coastal structures but alsodescribes some of the newer techniquessuch as the use of geotextiles. The lastchapter discusses the direction of coastalengineering. The lext presents many newconcepts which are the result of researchdone from the rnid-1970s to the present.By bringing both new and old conceptstogether in one volume. the book is bothan update and a review.

Arid Lands

DESERTS AS DUMPS?: The Disposal ofHazardous Materials in Arid Ecosystems.Edited by Charles C. Reith and BruceM. Thomson. 1992. University of NewMexico Press, 1720 Lomas BoulevardN.E., Albuquerque, NM 87131-1591.(505) 277·4810. 330 p. $29.95 softcover; $39.95 hard cover.

Waste accumulation is a globalproblem, and the improper disposal ofhazardous materials is a threat 10 publichealth and environmental quality. Theeffective, safe, and pennanent isolationof wastes in arid lands is addressed in this

This slope in Agoura Hills,California. was covered withplastic sheeting in an effortto protect homes Irom furtherslumping. Photo by SiangTan.

'" CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993

-

more prospects... Ivolume It is the first multidisciplinaryexploration to ascertain if deserts areuniquely suited to be chemical or radiO­active waste sites.

The essaY'S in this volume are the firstscientific recognition that hazardouswastes may be more secure in the desenthan anywhere else. They also posit thatintensive research in geology, engineer­ing. and biology must accompany siteselection to ensure that the facility issafely designed and operated.

Deserts as Dumps? is divided intotwo sections. The first sets forth basicscience and engineering principlesinvolved in waste management: thesecond presents case histories of threehazardous waste projects in arid lands:I) near-surface disposal in Beatty,Nevada: 2) the cleanup of uranium milltailings: and 3) the proposed deep-geo­logic disJX)S<ll of transuranic waste nearCarlsbad. New Mexico.

WATER RESOURCES IN THE ARIDREALM. By Oive Agnew and EwanAnderson. 1992. Routledge, 29 West35th Street. New York, NY 1000 l.(515) 284-6751. 329 p. United States:$29.95. soft cover: $72.50. hard cover.Canada; $37.50, soft cover: $90.95,hard cover.

Population grOVJlh. industrialization,environmental mismanagement, andconsequent land degradation have led todroughts. poveny. and famine of suchmagnitude that the need for space, food,and natural resources has become themost critical issue in global management.Nowhere is crisis more apparent than inarid lands. In this third of the world.population has more than doubled in twodecades and poverty and human suffer­ing are endemic. In these diverse areaswater resources provide the key to c(:o­nomic and environmental development.

Written by an applied climatologistand a hydro-geomorphologist. this bookis an exceflent collection of the tech­niques used and problems faced in theMiddle East arx:l Australia. The chapterson enhancing water supplies are espe­cially applicable in the American West.

They cover familiar topics such as irriga­tion and water storage as well as lesserknoum topics such as desalinization andcloud seeding.

Many case histories from the MiddleEast are given. and although not alwaysdirectly applkable to the United States.they have useful aspects. The authorsstate that the key to success is nexibility,and throughout the book they retum tothe notjon that successful adaptations inarkllards are characterized by an appre­ciation of the vagaries of the naturalenvironment.

Depositional Systems

DEPOsmONAL SYSTEMS; An Intro­duction to Sedimentology and Stratigra­phy. By Richard A. Davis. Jr. 1992.Prentice-Hall, Inc., Order ProcessingCenter. P.O. Box 11073. Des Moines. IA50381-1073. (515) 284-6751. 604 p.$58.67. hard CO\lCl.

This textbook on sedimentationand stratigraphy differs from the olderstandard texts in that it emphasizes thedynamics of depositional environmentsand their analogs in the rock record.A depositional system is an assemblageof process-relaled sedimentary materialsthat includes numerous sedimenta'Y envi­ronments. Each environment is charac­terized by its 0UIIl sediments, fauna. andflora as well as the processes to whichthey are sub;ected. Each depositionalsystem is therefore made up of a groupof genetically related rock types.

1he book is well iUustrated VJith linedraVJings and photographs. A suggestedreading list is presented at the end of eachchapter, and extensive references andglossary are provided.

Gems and Minerals

ZEOlITES OF n;E WORLD. By RlXiyW. Tschemkh. 1992. Geoscience Press,Inc" 12629 N. Tatum Blvd" Suite 201.Phoenix, AZ 85032. (602) 953-2330.563 p. $84.95. hard cover.

Zeolites 0/ the World is an impressivebook. Tscnernich is a zeolite specialistwho has studied occurrences and collec­tions workhvide and published numeroustechnical papers. The book is beautifullyillustrated with over 600 figures including

many visible light and SEM photographs,line drawings. tables. and 56 color photo­graphs. 11 is written for the serious mineralcollector.

Finding zeolite information has alwaY'Sbeen diffkult. Old publications are hard toobtain and lack information on new zeo­lite species and localities. Most new infor­mation is in technical publications and inlanguages other than English.

Zeolites 0/ the World fills the gapby describing 4 1 zeolite species. 1hediscussion of each species includes;chemical formula, type locality, nomen­clature. structure. phY'Sical propenies.optical propenies, morphology (includingcrystal drawings). chemical composition,identification hints, species-specific clean­ing, origin, occurrence, and worlch.videlocalities. Also included is a list of zeolitesynonyms and an outstanding referencesection containing over 1.000 publica­tions. Review by Mel Stinson.

GEMMOLOGY. By Peter G. Reac!.1991. ButteTWOnh-Heinemann Ud..80 Montvale Avenue, Stoneham, MA02180.18001366-2665.358 p. $67.95.hard cover.

Gemmology is an authoritative guide thatclosely follo.vs the syllabi for GrealBritain's Gemmological Association'sPrellmina'Yand Diploma courses. Sub­jects include gemstone occurrence, chemi­cal composition. phY'SicaI and opticalcharacteristics. enhancement. and fash­ioning. Synthetk gemstones, gemstonesimulants, and organic gem materialsare also covered. In addition, there isa chapter on the hand lens. microscope,and Chelsea fUter.

ROCKS AND MINfRAlS. By JoelArem. 1991. Geoscience Press, Inc.,12629 N. Tatum BM:I. Suite 201.Phoen~. AZ. 85032.16021 953-2330.160 p. $8.95. soft cover.

The book is a brief but useful colorphotographic guide providing basic infor­mation on rocks and minerals in oneeasy-to-use volume. Beginners and collec­tors alike VJililearn about the composition.structure, and properties of rocks andminerals. More than 200 color photo­graphs revealing the intrinsic beauty ofthese geological formations are included.

CAUFORNIA GEOlOGY SEPTEMBER/OCTOBER 1993 ,os

NEW AND REVISED OffiCIAL MAPS OFSPECIAL SnJDIES ZONES OF JULy 1,1993

Supplement 1 10 DMG Special Publication 421992 Edition

Official Maps issued July 1, 1993(map numbers keyed 10 index map):

1. Mark West Springs2. MI. George3 Cordelia

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Fairfield SouthVine Hill (formerlv Port Chicago)Walnut CreekClaytonLandersYucca Valley NonhYucca Valley SouthJoshua Tree South

WlTHDRAWN SPEClAL

STUDIES ZONES MAPS

Special Studies Zones shownon these mllps no longer llffectthe city of Antioch llnd thecounty of Com.., Costa.

Cilies and counties affected bynew or revised Special StudiesZones shown on Official MapsofJu/y I, 1993:

,,: 1_ •• -··-"_·'.-_..--\.----

• Revised zone map

Counties

Contra CostaRiversideSan BernardinoSolanoSonoma

Ollicial Maps of SpecialStudies Zones listed below are

,- withdrawn effective July 1. 1993(map letters keyed to index map).

A. Antioch SouthB. Antioch North

Cities

BeniciaConcordFairfieldWalnut Creek

n' Yucca VaHey

The Official Maps of new and revised Special Studies Zones are issued pursuant to the Alquist-Priolo Special Studies Zones Act and are effee·live July I. 1993. Revised maps supersede earlier Official Maps.

Review copies of these maps are in the offices of the affeeted cities and counties. and at the DMG offices listed. Copies may be purchased fromBlue Print Service Company, 1147 Mission Street. San Francisco, CA 94103. (415) 512·6550.

For information on Official Maps of Special Studies Zones previously issued. and for provisions of the Alquist·Priolo Special Studies Zones Act.see DMG Special Publication 42. ~Fault-RuptureHazard Zones in California." [t is available from DMG. P.O. Box 2980, Socramlm\o. C,b., 95814for $3.00 including tax and shipping.

Publications and Information Office801 K SlIeet, MS 14-33

Sacramento. CA 95814·3532(916) 445·5716

Bay Area Regional OfIice185 Berry Street, SUite 3600

San FWlCisco. CA 94107(415) 904·7707

Southern Catirornia Regional Office107 South Broadway, Room t065

Los Angeles, CA 90012(213) 620·3560

-'" CAUFORNIA GEOLOGY SEPTEMBERfOCTOBER 1993

The Institution of Mining and Metallurgy44 Portland PlaceLondon Wl N 4BR

England1l" 011 4471 580 3802 FAX 011 44 71 436 5368

MINING lATIN AMERICAChallenges in the Mining Industry

May 10-14. 1994 -Sanliago de Chile

1he Institution of Mining and Metallurgy. the lnsliluto de Ingenierosde Minas de Chile. the Sodedad Nacional de Mineria. and MineriaChilena y Latinomineria will host this international conference.Topics will include:

• Exploration• Underground and opencasl

mining• Crushing. conveying, arKl dump

~YOU'• Leaching and solvent extraction

For more information. contact:

• Rotation• Refining and smelting• Marketing• Project financing• Technical and social

tours will also be offered.

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MINING 94l.ltemalional Mining Exhibition

Birmingham. UKMay 23·26. J994

All aspects of deep arKl surfacemineral and melal mining, and thearea of processing, refining, and con-version IAlill be CO\lered in this exhibi-tion sponsored by the Association 01British Mining Equipment Companies.

For more information. contact:

Richard West28 Church StreetRlckmanswonhHertfordshireW03100

UK1l" 011 440923 778311FAX 011 44 0923 776820

CORRECTION:March/April 1993, page 42

The Quartz Hill veins are associ-ated with a major transcrustal fault(the Soap Cr~k Ridge Faultl. nOI

a transcurrent fault. Its dip is shallowand to the east and mineralization isin the footwall block (Elder. Don. andCashman. S.M" 1992. TectonicControl and RuK! Evolution in theQuartz Hill. California. Lode Gok:IDeposits: Economic Geology. v. 87.p.1795-1812).

CAUFORNIA GeOLOGY SEPTEMBER/OCTOBER 199:1 '"

Prospecting in Areas ofGlaciated TerrainSeptember 5-7. 19945t Petersburg. Russia

This conference is sponsored by theInstitution of Mining and Metallurgy. It willbe held at the 51. Petersburg's Mining [nsti­tute. which was founded in 1773. Topicswill include: Coasts in areas of glaciatedterrain: diamond exploration; geochemistry:applied geophysics: exploration planningand the environment: permafrost mapping:remote sensing; data processing. Field tripsto the Kola Peninsula. the Arkhangelsk area.and the 51 Petersburg area will be offered.For more infonnation, contact

The Conference OfficeThe Ins~tullOn 01 Mlnmg and Metallurgy

44 Portland PlaceLondonW1N4BR

England'B' 011 44 71 580 3802FAX 011 4471 436 5388

Extractive Industry Geology '94Sheffield. England - April 17·20. 1994

This conlerenr::e. sp:msored by the Institution of Mining and Metallurgy and the

Geological Society. will have technical sessions as well as field tTips. Planned

topics are:

• Planning • Super quanies

• Land, mineral, and waste owner- • Future development ot mineral

ship and rights resources

• Legislation · Advances in extractive techniques

• Pro,iect evaluation • Transportation and minerals

• Computer design applications handling

• Environmental monitoring and • Landfill and other aspects of

control restoration

For more information. contact:

The Conlerence OfficeThe InstitutiOn 01 Mming and Metallurgy

44 Portland PlaceLondonW1N4BR

England'B' 011 4471 5803802 FAX 011 4471 4365388

The study investigates the geologyand mineral resources 01 the Hollisterand San Felipe quadrangles. Emphasis isplaced on delineating landslides and thestruclural relationship between theCalalK'ras and San Andreas fault zones,The study area is approximately tOO milessoutheast of San Francisco and extendsover parts of the Gabilan-Santa Cruz Moon·tains. the Diablo Range, and the inteTVeningHollister Valley.

Reference copies of DMG OFR 93-01are available at all three DMG offices. It maybe purchased at the Sacramento and SanFrancisco offices. In addition, the Sacra­mento ollice offers prepaid mail order sales.

Publications and Information Office801 KStreet,14thFloor,MS 14-33

Sacramento. CA 95814·3532(9\6) 445-5716

Bay Area Regional Office185 Berry Street, SUite 3600

San Francisco, CA 94107(415) 904·7707

Southern California Regional Office107 South Broadway, Room 1065

Los Angeles, CA 90012-4402(213) 620-3560

GEOLOGY OF THE HOWSTFR ANDSAN FEUPE QUADRANGLES. SANBENITO. SANTA CU\RA ANDMONTEREY COUNllES, CAUFORNIADMGOFR 93-01. ByT.H, Rogers, 1993.$10.00.

Geology at the Mt Boardman [151 quadrangle, Santa C~ra and Stanislauscounlles. Cal1fomia (scale 162.500) 1964Geology of the Redding [7.5'] quadrangle. ShaSla County. Cahfom;a(scale t24.000) 1965Geology ollhe western Vallecitos Synchne, San BeMO County. California(scale 1:3t.25O) 1~Geology ollhe Palo Alto quadrangle. Santa Clara and San Mateo counties.California (scale. 162,5(0) 1966Geology of the Kelseyville 1151 quadrangle, Lake, Mendocino, and Sonomacounties, California (scale 162.5(0). 1968Geology of the Lakepon It 51 quadrangle, Lake County, California(scale. 162.500). 1967Geology of a poflion ot western Mann County, Cal,fornla(scale 148,000).1969Geology 0' tile southeast quaner of the Tnn~y Lake 1151 quadrangle.Trinity County. California (scale 1:24.000).1969Geology of lhe Manerhorn Peak 1151 quadrangle, Mono and TuolumnecounlOes. California (scale 1 48.000) 1975Geology 01 the WilloW Creek 1751 quadrangle, Humboldt and Trinitycounlles. California (scale: 1 62.5(0), t978Geology of the Fallen leaf Lake 115'1 quadrangle, EI Dorado COI.lnty.Cal~ornla (scale' 1:62,5(0). 1983

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The follow1I19 ISSUes of CALIFORNIAGEOLOGY can be purdwsed for $2.00each (the order form on page 148 maybe uS€d)

December 1983 -Geology_of the SantaRosa Quadrangle; Cahfornla"s Ice AgeLost The Palisade Glacier, tnyo County:China's ·San Andreas' Fault The TanluFault System, Shantung and Anhui Prov­Inces; Index to Volume 36

May 1984-CoUr1right IntrUSive Zone,Sierra NatIOnal Forest Fresno County;Index to Graduate Theses and Disser1a­tlons on California Geology 1979 through1982

October 1984-1983 Mining ReView,Goldbelt Springs Chrysotile AsbestosDepoSIt. Death Valley. Inyo County;Gold MIning Landscapes of the West

January 1985 -Gold Districts of Califor­nia-An Update; Recent Mining AcliVltlesin California; MIOIng and Prospec1ing forGold ,n the 1890s Excerpts from FrankNoms' McTeague; Origin of the MISSionVieJO Clay DepoSit, San Juan Capistrano,Orange County

February 1985--Hlstory of MIning: Provi·dence Mountalns. San Bernardino County;Mitchell Caverns Natural PreseNe in theProvidence Mountains State RecreahonArea, San Bernardino County; EanhquakeDamage in Ihe Sacramento-San JoaquinDella, Sacramento and San JoaqUinCounties

February 1987-Rock Stripes on SIerraNevada Foothills, Fresno and TulareCounties; Geology of an Accreted Slab inFranciscan Complex, Redwood NationalPark, Del None Counly: Using GeologicKnowledge for the Public Welfare

March 1987 Mother Lode Gold Mines:Jackson-Plymouth District, Amador Coun­ty; Geology of Mussel Rock Landslide,San Mateo County; Careers In Geology[Exploration Geophysicist, Geochronology,Hydrology]

April 1987-Vacavllle-Winters Eanh­quakes. 1892, Solano and Yolo CountIes:1892 VacaVille-Winters Ear1hquake and1983 Coalinga Earthquake; MesolhermalGold Mlneralizallon: Skidoo-Del Nor1eMines, Death Valley, Inyo County

May 1987-ln search of the Abrams PostOffICe, Trintly Counly; Gold Campsof Fresno County; Geology and Palynol.ogy: Del Puerto Canyon, StamslausCounty: Careers in Geology [Astrogeol­ogy], GeologiC Crossword Puzzle;

Composites. New Uses oflndusfrialMinerals

July 1987 ForenSIc Geology and aColusa County Murder, Pothole Dome_Where Waler Flowed Uphill, TuolumneCounty. legislative History of CallfofOl3Coastal Lands: Mining Crossword Puzzle:careers In Geology- Geoscience Posi­hons In State Civil SeNIce

August 1987-A Thumbnail Sketch:Callfornla's Marine Geology: ScrippsInstllU\loo: Eight Decades of Research;The Galapagos Islands, Province ofEcuador, Careers In Geology (ManneGeologist)

September 1987 Geographic Names inCalifornia: HistorIC Glacier FluctuatiOnsal Mount Shasta Siskiyou County: MountShasta -Challenge 01 the Mountain:TectoniC Evolution of the SouthernPanamint Range, Inyo and San Bernar­dino CounlJes

November 1987 1983 U S HIghway 50landslide Near WMehall. California, EIDorado Counly; A Century of EarthquakeRecords, 1887-1987. Terraces, Tilting,and Topography 01 Cordell Bank

January 1988---Elemental Analyses ofMica Resources in CalifornlCl: Gold Minersfrom South AmerICa "'We Were 4gers~­

Emergency Planning for Flood Hazards

February 1988 -Ground Shaking andEngineering Studies Near the sanAndreas Faull Zone, Parkfield, California:Japan's Ear1hquake Warning System:Should It Be Impor1ed 10 California?; AnEvaluatlOO of the Anlmal·Behavior Theoryfor Earthquake PredlCltOn: EarthquakesStrike Imperial Valley in ·Superstitlon HillsSequenca- November 23-24,1987

May 1988-lchthyosaurs of CahforOla,Nevada, and Oregon: 1987 AnnualRepor1: Slate Mining and Geology Board:Geomorphology of Upper Palm Wash.Anza Borrego Deser1, California. SanDiego and Imperial Counties, Legendof Ihe Geysers

June 1988--Applicatlon of Remole Sens­ing to California's Geology; Geologists ofCalifornl3 Series Mason Lowell Hill;Fulgurlle In the Sierra Nevada

November 1988 Paleomagnetism ofthe Zuma VoICSOlCS, POint Dume, LosAngeles County, California; GeologICWalkabout in Australia: Volcanic Hazardsat Mount Shasta; Sedimentology of theMontgomery Creek Formahon, ShastaCounty, California

December 1988-Geology of Del Norteand Siskiyou Counties and AdJacenlPQr110ns of Humboldt. Shasta, and TIIOlIyCounltes; Ice Age Geomorphology 10 theKlamath Mountains; New Model for theFormation of Myrmekite: A Mystery SolvedNear Temecula, RiverSide County, Califor­nia; Index to Volume 41

February 1989-The Grandeur of Con·erete-Part II; Beally Landslide, santaCruz Counly, CaliforOia

March 1989 -Medicine Lake HighlandSeptember 1988 Eanhquake Swarm,Siskiyou County; Or'9ln of the IsabellaPluton and Its Enclaves. Kern County,California: Parkfield Strong·Mohon Array,Monterey and San LUIS Obispo Counties

July 1989-Ancestral Klamath RIverDeposits at Gold Bluffs, Prairie CreekRedwoods Stale Park, Humboldt County,Cahfornia; Scenic Resources of PrairieCreek, Redwoods State Park. HumboldlCounty, CaliforOla: California State Miningand Mineral Museum; Chestermanlte'A New Mineral, Fresno County, California:The 15 Most SlQnlfiCant Eanhquakes 10U.S. History: First Diamond Find in Califor­nia-When and Where?

November 1989 -Deep SprlOgs Fault,Inyo County, California An Example ofthe Use of Relatlve·Datlng Techniques:Ar1hur A Wilson Quarry: Where NatureGives Man a Break, San Benito County

December 1989----loma Prieta Eanh·quake. OcIober 17, 1989, Santa CruzCounty, California: Effects 01 the LomaPriela Ear1hquake, October 17, 1989.San Francisco Bay Area: EnVIronmentaland Public Health Issues Related to theDisposal of Non-Fuel MIning Wastes:selected Reading ust Earthquakes andRelated Faults in California

February 1990----A GeologICal JourneyThrough Red Rock Canyon State Parkand the EI Paso Mountains, Kern County,California. Strong Motion Records: Octo·ber '7, 1989 Earthquake [a review 01Callfornl3 Slrong Mollon InstrumentationProgram Repon No OSMS 89-06}; Volca­OIC Hazards In California la review 01US GeologICal SUNey Bulletin 1847];Sea Floor Tool; California Geology: AResource lor Teachers

April 199O-Coaslal Landslides Causedby the Oclober 17, 1989 Eanhquake,Santa Cruz Counly, california; CactusGold Mine, Kern County, California:Earthquake Preparedness Education

CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993 '"

Mining operations were conductedsomewhat dlHerently in 15th century Italy...

A 15th CENruRY MIMNG LEASE

[S;ma-Apnll,1445/

&jOrtyou, mognijic(m andpownful /ords. our most parrimlar /ords.pmnisillg tlx humbk rrrommnuiations. (tc.

It is rtlaud with du~ revafflC( byyour mort/aithfill smHmts. Vitak. J(}/J ofMaestro Aikgro of Imola ... and Strfil1l0 di Giol.·mmi ofRagusa. thllt tiNyhal)( Ixord through "porr that in someparts ofyourdistrict tlJt'1T art emainmotmtains which hal/( vtim ofrvny kind ofmaal; andfOr that rtason tlJrYhal/( come to your city and wish to mine in said mountains. TINy would liketo ask by singulargrau [that is. by agram rtSmJ«1 txclusil/(/y to thmt] to Ixallo~d to mint in t!Jt tnTitory ofMomitri, that is. in tlJf viliAgt ofBocrhrggiawlO and in the viliAge ofRorcastrada, with tlNK pacts. conditions.andproadum: that wlJt'rt t/xy /xgin to mine no otlm-pnson Ix allol«d to

min~ within a milLftom tlJ(m fOr apmodoftwnlty-fil/(~ars; and ifitshouldhappm that two yearspass withour tlxir mining anything, tbm thisgracr is to Ix wukrstood to Ix nulland lJOid; and tlJrY offirfOrrotT' to gil/(yourCommune our ofanything tl19 min~ orfind onepart out oftuxIV(. Also. inr~ard to ronything tlJry min~that is. gold. silvtT, andany oth" metal­tl19 promi$(your umlmrme that tl19 willhal/( it meludand refined byartisans lilling in your town, that is. bygoldsmiths; and if[t/J( goldsmiths!t/mnselvtI wish to do this, they promi$( not to mId {the metal! to others. thatis, outsideJOltr city. Also, {they promise! that they will hall( it all stmck in themim ofyour Commune.

Also we wish to be allowed to use any water in the said localities and toerect there any building [needed} to work the wa metal. and to be allowed tocut wood without detriment or damage to (my ofyour communities or toprillau persons. {since} this grace is not to be understood to bt detrimental in(my part to them.

And this they would like to ask bygraa ofyour lordships, to whom theyever rtCommend tlJt1nselves, whom may Godprrst'f'W as they wish. Praise Ix(0 God

The petatJOn was approved on April 6, 1445. five days afler applicatIOn

Quoted 111 Medieval Trade III the Medirerranean Worldby Robert 5 lopez and Irvng W Raymond. New York. CoIumbla Urvver5lty Press.1955. Tl1IS text appears on p.l22 and is listed as doctJmeot 49

Document 49 IS translated lrom the llaban as publIShed by A. l.JsinIlfl NoflZe delle rrwuere della Maremma Toscana e /egg pet festravonedel mera" riel medlOeVO. Bullet''''' Senese di Stana Patna. new ser . VI. 1935. P 255--256

,so CALIFORNIA GEOLOGY SEPTEMBERIOCT06ER 1993

AB 3098 Surface Mining and Reclamation Act (SMARA) Eligible list - July 30, 1993(THIS UST SUPERSEDES ANY PREVIOUS UST AND WILL EXPIRE OCTOBER 1, 1993)

The following is the July 30, 1993 It'S!of mining operations subject to the SurfaceMining and Redamation Act (SMARA), fromwtJich California stale agencies may purchaseor use materials, /' nas been prepared by Ih8Depattment of Conservation Office of MineReporting 8IId Reclamation Compliance. Thelist is required by Public Resources Codesection 2717.(b) to b6 published in the CaN·Iomia Regulatory Notice Registaf. In addition.it is published herB as a OOUfl'esy. at no costto CALIFORNIA GEOLOGY subsaibers andwith no reduction in conlanl of /his issue.

AllIm.ca. County

9,-ol-ooGl-DumbaltOn Quarry(0urnb-.tQn Ousrrv As$cX:iaIeS)

9\·01..(l()l)2-R.dum (l<Mer Sand &~ Co_Ill'·01·0000-Niln Qonyon Ouarry (SADC. Inc.)9,-o1·0007-SU1'llll (RMC L.oresulf)11l.(Jl.oooe-leona Ouarry (GaIagher & BuJ1<a)91-01..(lOl)$...Eliot (RMC Loneltlr)91-Ql·0(IIo-c.lMal PlNsanton (CaIMal)91·01.(l()12-Mission Valle}' Rock Co. SMP·'9,·01-QO,3-Mission Valey Rock Co. SMP-241l,·O\·0016-S1leridan 0ua"Y (Redgwick ConsI. Co.,ll,-G,.()(),7-f'allol'l Pit (Redg'wicJl Coos1. Co.,111·0,-OO,8-Tas.ujllr. p~ (Redgwick ConSl. Co.)

Alpine County

9,.()2-QOO,-Merrill Barrow p~ (Sluan P. MerriI)

Amldor County

91·03·0001...()osc1l P'I (Pacific Clay P<0lk/cIs)91.Q3.0002-Nort1l Cattloncll'- Sur/ace M....

(J8lIper Mlo'oWlg)81..Q3-OlXl3-Ch1n H~I ClIim (Owen&.lllinoil)81..o3-OOO4-Ow_·IMlonis sand P~

(Owens· Illinois)91-03-ooo&-Unc:01n Mine {Sull"~81-ro.ooo7-MGM Mining. Inc.91-Q3..0008-NIDyO Seoo Ranch (lone Mine)

(North A,merUn RefIacIoriel)91.¢).(J(11G-8uen1 VISlI Clly Pil

(CIlaveIas C4tmenc CompIny)91..oo·0011-Ca1 Wi'll Roek P.oductsI\OM 0uaf1Y

(Weslem Rock P.odtds, Inc.)"..oo.oo'3-6oring Shale Pit (Krelh. Inc.)'1..00.001 ll-Ilish Hill P~ {KnIlll. Inc.)9HI3-CJ02O-,Jlckson Valley CluIfI)'

(Geo<lJII Reed, Inc.)

8<rtte County

91·04·ooo1-f'entr. P'I (8lIlctow1n Conmoctng CO.)91·04~ Cons1rucIiorl-OfoviIe Wio:M8

"."..(M..()()()5.-Aobinton~ P.81..(M.(JQQ7-M1lhews ReadyMiIl-Vance ...venue91~lhews RfllldyMix-State lands91..(M.ool l-(hefl Rock Oullriet (Ro9oH Gfeen)

Cllaver.. Couflty

91-05-OQ01-&lydef Clly P'I (John J. S<1yde<}91-«>-0002-Royal Mounlaln KWlg Mine

(Meridllln Gold CO.)81..(l5.(l()(l3.- Hill Ot.iIfI)' (Cyprus Westem Sourcel91-05-0004-I( R Mine (Cypnll W.,.tem Source)91·Q6.0006-Teiche!I-flobl Plafll fT""" Aggrl9Dtes)91.()5..()OO7-Teiche!I-Reed fT-'chen Aggfegetes)91~VIlleySprings ClIy Pi!

{CIIave1IIs C4tmenc Company)9HI6-000'i-Cllavefn Cement Company, /ffi o..lfI)'

(Calaveras CemM1l CompInyl91..()6-(l(11t)..Ca1llYlraS cemerrl ComIPIlY. o..any'7

(CalIveIM cemerrl Company)81·05-0011-Al1 Rock (C.E. Mcl..I..>gtllin)

91.05-0012--CalallCll.irnll'slone OuilrlY (CalllverasCemenI Company)

91 ·OS.ool3-Wolin & Sons A9II.egll<l(Wobn & Sons. tnc.)

91.05-00144iogan Cuany (Ford ConSlruclioo CO.)91 .05-0016-McCany Pit/Foathil Malefial$

(Ford CQmlnM;t;on CO.)g'·OS.(ll)17-A/lo M.... {GlilTlII Gold. Inc.1

Colu.. County

91 ·06-0001-Teochef1-Tl1ornpson 0uaf1YfTeld>e<t Aggr• .,.)

ConIra CO"'I County

91-o7.(JQQI-8yfOfl Plant (U....... Corp.)9l·07·0003-C1ay1on Qua.ry (Kioiser Sand & G......Q91·07·OOO4-CIayton (RMC lOflMllf)91·07·0005-P0r\ Cooua Malllllall

(Port Cooua Mallllials. Inc.)81-o7·OllQ6.-.ChewOfl CluaIIY {Americaln Rock

aod AsphflM. tnc.)9l·07·ooo7--Ca1'lll1 Quafl)' (A.merican Rock

& Asphfll. Inc.)9l.07..()O(l9-Slone. P. (F.T.G, ConSlfUCtion

Malerials.Inc.)

Del MM. Couflty

91-C1e-0001--5ullan B.--NortIl Coast PaYing & Rock(Redwood E""",e Agwtlglltes)

1l1·08-C1OO2~Ba.-Nor1h ea.. P ....ng & Rode(AlKtwood Empi.e "119',-)

111·06-OOO3-FllInch Ba</ResllIvllioo Rancl'I{E.noeSlWa)

91-C18-OC104-TedIIon Bar {T'dewalt< COnu8<:lOf$.Inc.)91~ocken Ba< {T'lClewaler CoroI.aetOf1', lno;.)91-C18-OOO6.-Hole P~ {T'1dew_ ConuaetOfS. Inc.)91 -0e-0007_Westbfoolc·Wethe.aft fTaytOf W.,.lbfook)91·08·0008--&aIy QuaIIY (Tdewallll ConuIlClln. Inc.)

91·08·~ BIlf (Morgan Redl·mile)

EI Doo-ldO County

81 ·09-0004--ehlle Ba< SIaIe MIne(PIllcerville IlDlstries)

91-09-0005-C00l Ca.... o..afl)' (Spfeckels Llmeslone &AwagaleS)

F.HnO County

91.1C1-0003-Acadamy o..fI)' (Raymond Grl...e)91 ·lll-OOOol-A1·1 Concretl (ATe Concreta)81.Io-ooos-coalin9ll P~.l (GraniM Constn.>cti:>n Co.)81·ICI-OOCl6-Acme Rock (Acme PlYing Co.. Inc.)91·10-0007~ P~ If2

(Grlnil:. CoosUllclion Company)91.1C1-()(X)8-P1l1Y sand P. (Ed Petry)91-10-0009-RiYef Rock {CalMlt of cenl.al Calilomlll)91·10-001 ll-CaIMaV 5angef (CI1Mal of Cer!I.at

Cali1of....)9\·10-001 I--CalMaV Rank laland (CaIMll of Ca<1!.at

CaIiIOf_J9\·IO-OO12--CalMaV Frianl Rd, (CaJMel of Clnlflll

CaIitomia)81-ICI-0013-lapata,'Ch;no Pi! (MMla Ready·Mix

Coocfele. Inc.)91-10-00l.-Rockli&ldlP\lnl SOli (AMC Lonesl-af)91·ICI-OOIs-RoddieldJ8eclc (RMe Lonestlr)91·10-0016-Ma1orirlO Fa"TII (Jim & Brian Maiorino)9\.ICl-OOI7-Carotral Vllay Ready Mix. Inc.91.ICl-OOl6--rrvy Veley Granil:e (Charlea L.an Raper)

Gr.tIn County

91.11-C1OO3-8lony Cteel< P\llr( (8llldoWl COmrading)91.11-0004-S1ony Creek P. (00ancl s.nd & Gravel)91 .11-C1OOS-Spoonll1 P. (Valley Rock proctJcta)91· I I -CIOO6-Slony Creek (Valley Rock ProctJctal91·1 1·000741and P~ (Vubll River sand & GfIlWl)91.1I-C1OOll-8lony Cteeil-Whil....y Pil (leOf1 Whilney)g1_11.(lO(l9-Mal1in Sind & GrlMll (M. & T. A_.oes)91·11.(ll)I(hJaspe. Grlvel P'I91·11.oo12-Vllley Rock PfOdum. roc.

Humboldl County

9\·12-C1OO2-51f1Cly p.airie(~... Fra_)91·12·0003-A·21 Qu,IJIY (Me'ee<, F.-)91·12·0004-T.inidId Quafry lMeK:e•. FflSlf)9l·12·ClOOS--€s_ (Me«lt', F.ISef)91·12-CIOO6-Cooks Vlley (MefOlH. FflIserj9\·12·ooo7-Willow Cfeel< (Mercer. Fraser)9l·12-C1OO8-Jacoby C..... (Barnum rmblf)91·12.ooll)..Clwisloe Ba. (Eureb RfIIIdyM")91·12.oo11-Mon1chk. o..afry (Wallin & JoIwlsoo)91-12-0012-Mld AMI. Sand Ind Gr......

(V1CIOf GuynJp)91 ·12'OO13......cata ReadiMUl-&M O'Ne~

91-12·00I"'Aandan sand & Grlvel9\·12.(ll)I6-Toslen QuIJIY (GonIon Tostenl9l·12.oo17-<>rake FaciUty (HumbokJl Bay Gravel}91 ·12·001 8-Thomas Besa91 ·12·0029-Alt0fl P. (Eu.eka ReadyMlx)91·12·0030---G,Wm Bar

(AedwOod Empire AlIll.~t"}9l·12-C103 I -.Johnaon Bar

(Redwood Emp....~tes)9\·12-003.2-8lue Lake ea,

(ReawoocI Empire Agg.-egal_)91· I2·0033-Em....son BIl.

(Re<Iwwd EmpI.1 Agg<egat_)91·12·003s-&own & $oM o..arry (R05I8' Brown)9l·12·0036-Wailh Quany lJacIc & Mary Walsh)9l-12·0037-Ammon o..arry (McI.-1I ConslfUClioo)91-12-C1038-M1IOfl Quat", r-Nlyna """"""')91-12~Vlley ea. (RicI'*d Rowland)91-12..(104(lo.McKnigtl: Bar (MMe.., F.1Sef91-12·00....-LP ...-3701U2OO (Me.C&f. F.aser)91·12·0046-Grooma Aock Ouf,fI)' (HIlI.....n G._)91·12-C1047-Millerl Gf...... Bar (Roger Mil\ef)91·12.()l).l.8-WIliln & Johnson Gf8veI Bar

(Willan & JoMson)81 ·12.QO!;1--Singley Bar (....CalI Re.clyMlx)

Impe.111 County

9\·13·000l-Pic.cho M.... (ChemgOkl. Inc.)91·13-C1OO3-Frink P. (DesIf1 Grlvel Company)91_13·0004-Plester City ShovIIllI Amex

(U.S. Gypsum Company)91_13-OOOS-P\asl:IH City Quarry

(\J S. Gypsum Company)81_13.OOO6--OcoIiIo Mine (Flrmef'l Land Leveling.

Inc., dbll Masters COlllltruclion)91·13.0007_~Mine (Flrmlf'I Lane Leveling.

Inc.. dba Mastef'l Construction)9\·13--OOOlhShe11 Canyon (V"'Roclt. Inc.)91_13·001G-Wonderstooe P. (GfenlM Conswctionl91-13·001 1-f11ilandJFrifIk P. (G.lnite ConstNc:1lon)

91.13·0013~1owingWell P. (GflInila Coosuuoc:tioo)

91·13-00I.-$hank PiI (Gf_1 ConslfUClfOn)91·13-0015-Nonish P. (Gf_a ConItruclioo)91 ·13-0017-SheII CanyoniOcotillo

(Grlnill ConslfUCtlOfl)91·13.oo18-Oco1i1ct{Sch...- P.

(Gfaoile Consllllctlon}9H3·0018-Gold Fields Operatioo CO.-Mesqu~e

(Gold Fields MlrOng CO,)91·13-C102O-Go1d Fields Operating CO.-MHquila,l

VCR {Gold F"oeld:I MiO"Iing CO,)91 ·13-C1045-Chuckawalla (Camns)91 '13-C1046-Coyota (CalI.ans)81-13-C1047~riftkCInal (CallfSns)9\-13·~d Fish Springs (Cllt.ans)91-13-C104!)-New River F"IMS (Ca~rans)

91-13-OOSO-New Rive< Gr-' (Cdrans)91·13-0051-f11ilaod (CaM'lns)91·13-0052...Qco!illo (Ca~'IIllI)

91.13-C1053-San Felipe Wish (CI~""')

111·13-C1OS4-Six and QoI.HaIf Mile (Callfl")91·13·0055-T~n(Callans)91· I3·0056-lndian RoM (tmpe<ial Gold COfporation)81.13-0057-W""ht P~ (Aggregate Prodtds. Inc.)91-13-0062-AlnlfieIn Gi1 CMyon Mine ("'me.ican

Gift Mining JoO"ot Ventu<a)

CAUFOANIA GEOlOGY SEPTEMBER/OCTOBER 1993 '"

91·13·0066-Padle MaOr. Pro,eel fAmencan (3oftM.tlong ..loon! Venture)

9~-13-0061-AmencanGIl1 M,nmg JoInl Venture:&plooa\lOn

91-130069 Aober1 s Ptt (Des8f1 Gra"lll Co)

Inyo County

91-14--0001 Nikolaus'" N,kolaus(NikOlaus" NJkolaus. Inc I

91·14-00<12 Red HoM OuaffY[Twill Mwntwl Rock Co)

91·14.0D04 H<.iIlIAg9'egatePtt(HIall RUOy MIx. Inc.)

9114-0001-"'''' c<_ {V 5 Tungslen COrporanonl9\ '14-OO1ll-G4nlley M,,", (U S lJofu" CI>emIcal

""'0191 lHl012-<>weRs Lake Mine (Lake M.......a1s Corp,)91 14 -(l()13----CaUtornm HectOr'I' PI\$

(IMV OMs>on 0/ Flotodonj91 14-0014 Amenc.an Pinte Company !M*OCiIn

Pentte Company)9114.Q021 Sd"eMone{An'wlncan6orateCo_)91-140021 .116 8rockman Pot !C'lVans)91·140032 Mat_I S,le .118-1ndependence

(Caltrans)91-14--0038- MaIer",1 s,te 8111~---shOsone(Caltr..""91-14-Q04!t-Mateoal 5,te 8283-New Zunch (~"'ans)

91-14-Q041--1'268 New Coso (Caltrans)91·14-oG4ll---4'2B9 Ha,_ (Celtrans)91 ·14.()()49-4':290 Olanche (Callrans)91-14-Q050-Malerlal S,te'291~ (callrans)91-14·0055----Panamltlt Valley~ Quarry

UfI\ermountaln "lone ServIces, Inc,)

Kern County

91'IS,0002-WebsltII' Sand, Inc (Websttll' Sand, Inc,)91 -15.OOQS -.$humalle ()pe<a\lOn

(Cactus Gold M,nes Co)91- 1S.()()()6. t.Wdle Bunes OperallOll

(Cac.ls Gold Mines Co)91·15.(l()()7 Sotw.. PlEldr. Co (AM Webb, J< J91,l5.Q008 109 l.JmeSlone Cuany

(NatlOllal Cemool Co)91'1S-OCI09 M,crowave OWny-lebec Plant

(Nal1011a1 c.mtnl Co I91-15-(l()I()-Qua"y Sole 6-l8tlK Plant

(NallOllal e.m..t Co )91 -IS·oo1 1---.Q1cl Dutch 0-.- Mone (MlItCOll Corp )91·1S·OO12- Gilliam & Sons MoIWIll Opera\lOn

(GAam & Sons, Inc)91-1S-0013--Siand CanyonICaI·C,·Co Roete Co. Inc_J91·15-0014 Calclle{CaIMatCo,)91·15-OO15-Bowman Pn

(Asphalt ConSlfUCbOn Co, Inc.)91·1S-0016-M¢1ave p~

(Asphalt Coos1ruclIon Co . inc )91·15.0017-LOSI Holls MIfMI (H M HoIoway, Inc)91·1S-0018-Stanoaro HII {MI1I:ln Monerals USA)91·1S·oo21-Eltcel-M.ner.. Company, Inc91·15·oo22-8oron Owl Ptt "lone

(U S Bora>: & ChemICal Co,)91-1S-o<l~4--"""""Ptt (Gralllle ConSlructOOfl Company)91·IS~Road PIt & 1.4,1 (Kern Roell Co)91-15·0027--eanet>rake Creek P,l (Ladd Ready Mill)91-1S-oo:!8-James Road

(Granole Cons\nlCtJOn COmpany)91-15'0031 -BoO Mor1Ol1 ConsINCtJOll. Inc91 -I S.OlJ32 Mo!&ve Quarry

(~~omoaPorlland C&menI CoJ91-15·0033 V-..ow -'sttll' (~M""ngCol91·IS·003S-Descar~(Rand M"""ll Co,)91· I S-003&-Coopef P~ " (Slanley Coopefl91·1S.OlJ37-WheeIef Rodge PrI & Min (Kern Roc!< Co.)91 ·1 5-00:J8-Coopef PrI. '2 (Stanley COOpef)91·IS.Q039----Goklen Cat CorporallOn9 I -1S.()l)4O..MonoI~h lImeslone Quarry

{CallvllI'u Cement Co )III IS.()()41-eaIMav SIn Em!9d1O

(~IMal 01 Cenltal Ca~lomoal91 15.()()42----Gahente Sand & M"""a1 CO. Inc

(Nature COnservIncy Parcel)91 IS·0043-eabente Sand & MloIlI'a1 Co. Inc

{CaI_te Sand & M.naIai Co. Inc J

91 15-004-4-EdlSOrl Sand Co, Inc(Ed'son Sand Co Inc)

91 15·004~ Raoct'to La l.oebfe{Te,on Randl 82)(5ullCfele Matenals Co ,

91 \5-0046 Shuma~1lI'M"", {J;vnes Clar"')91·15·0047 lnyoklll'n PI (BoIaI Resou<ces, Inc)91-1S-0048---GaIlocll Ptt (Borlll Resources Inc I91·15·0049-H & W NO Kern OG

NY Hunsaker ER W8I8SenDlll'gtll')91 15.0Q51---Gol Ro<;Ios (Homer A Hansen. Jr J91 ·15.0066 Mota"" PrI (Eagl KllI'n AIrport Oos\l1Cl)91- IS-OQ61-De<by Aces 6ofrow Pol

(ARCO 0'1 & G.u Co )91- 15«l6&-Ooloale R8lldV M,. (QoI<lale Ready MOl)91-15-0069-SWEPI- PMlM,,..

(Shell Weslam E & P, Inc I9115·0071 Sec!1OIl2llBooowSlle

(Sama Fe EnerlJ)' Resoaurces.lnc)91 15-0073 Rid Rock MaIenaIs.1nc

La~eCounty

91·17.Q003 Sulpher Mound M,ne (S-Bar·S)91·17--0007· Putah Creel< Mine

{Hocklen Valley Sand & Gravell9111-oo11Ind<anC.eekOuaNy(pamumPitW>\l,

'~I9t 17-0012 Clearlake Lava OuaNy91 l1-OO13-P! Lak_ ROClo "RedlMOl

(B,U Van PllII)

La..en County

91·111·0001 Ray HiUnng10III Standrsh P,I{Counryl91 -111·0002 -Honey- LaJ,.e Aggt'9\lates

(Honey Lake Aggregates)91·\8·0003 Doyle Planl (Baldwin~ Co.

,~,

91-18.000&- Malle<y P~ (Moller's Custom WorI<. Inc )91-111·0007 ·WllIIs P,Wl8W\and (M'lIIlI'"s Custom WOfk.

'~I91·111·0008 Ward Lake Ptt (Moher'S Cr.oslom Wonc.

'~I91 18·oo1O---StaodlSl1 Ptt

(Saul Conc<_ & Maler..,' Inc)91 18-0012 Hayden HoI M...e

(la$$en Gold M""ng. Inc)

111 18-OO14--Round Mounta,n (A1rnanor Rock &Equ,pment)

LOs Angeld County

91- 19-0001 -51ale Sand & Gravel Co91-19--0002 1I111erod< Aggregale Co dlla Antelope

Valley Aggregat•. Inc91· III'0007-AzuM PrlI Azusa (Southdown Inc. dbil

Tr_~Muced Concrere ComPllttyJ91· 19.()()()&-.GrilOll. Planl LJlIlerodc (GraMe

Cons\l'llClOOfl Company)91·19-OO12-UnIIecl Rock ProducI9 Corp Planl SIle91·19-0013- Uruleo Rock Produc:l:9 Corp PIt 8191·19-OO14--UrlIled Rock PrO<luets Corp. PrI "2III· 19-001 S-Unoleo Rock PrOducts Corp Ptt 8391· 19-OO16--R"'anc&--llWlndala (CalMal Co.)91-19-0011· Sheldon (CaiMaI Co)91 19-o<lIIl-RaI,anc..AtuN (CaWiM Co,)91 -19-o<l19-BouleYard Propany (CaWiat Co)91,19·0020 Palmdale (calM" Co 1111,19·0021 -Bog Roclc C<_ (CaIMaI Co)91 19'OO22---C1lMal-Sun Valley (CalMal Co.)91·19-oo:n-ClurbIn (CalMal Co I9 I ·19·Q02S-1I"""li1SIOn--Granam. IlWJIldaleIII ·1 9.0Q26-.Ht-Grade Mater,als-unllll'ock91·1s.0034 -Aluu. (Owl Rock Proaucts)91-19.OlJ3S-F,sn Canyon QuaffY (Azusa Rock)91·19-0036--Sweelwaler Aggregates

(Lang StallOn. Inc)91 19·OO3Il-Soledlo canyon M....

(P W G"bll.nd Co )

M.d••• County

91·2O.OOQl -Sotwra WlIoI. Quarry(Raymond Gr""". Company)

91-20-0002 o.er...- Pll (Calaveras Cementdlla Slewarl & Nuss)

91·20·0003 Moen p" (CaIavaoas Cement,dbll Stewart & NussJ

91-20-0004 CObb Ptt (San JDaquon sand & Graval)91·2O·0005--8eoendl Slough

(Central Valley Concrele. Inc,)9\·:z0.0006-1Ue 0. Silva

(lee'. Concrele Malenals Co, Inc)9l·2Q.OOQ7-Taylors P'1 {Cah!Qrn;a Indu$tr\aI ".",.,."91-20-0008 Bollrng« Ash Slough SIIe

(Wm. E 81_, Inc)

Marin County

91 -21·0001 -·RedwoodiSolven Quarry(Redwood l.andf>I. Inc )

91 ,21-0002-t..wson s Land"'ll (Call W Vogler, SoJ9 I -21 -OOO8-San Ralaal Rock QuaNy

(Outno Companoas)

MllIpoai County

91-22-0002-R Pearson91·<!2-0003-Larry & Sandra Bunrw1g

(LaffY & Sandra BunnnIng)

Mendocino County

91 -23-0003-Ford Gr~Compiony(Ford Gra...... Co. Inc.)

91·23·0004 Ausl.n----Crlwlood Gravel Bar{Foro Gr~Co. Inc)

91-23-OOO5-Bradtoro Gr..... Bar(Food Gra"lll Co, Inc)

91·:n-0006-friz Creek Gravel Bar(Fehz Creek Gravel Bar)

91·23·0007 Fetzer/Jepson Gra... Bar(Ford Gravel Co. Inc)

91·23·0008-Be!lrock, Inc. (W1IIoIIm & Karen Hay!91-23-ootG-ChllN Rock Ouany"'-'d FIocl< Quarry

(Palllum Pavwlg_ Inc)91·23·0015· Harn. Dualry (Northern "ll9regalllS, Inc)91·23-OO1&-Mill er.- SIr/Adobe Lana P,t

(~ymond PoIsleyI91-23-OO11-SNlnvOCll Quarry (Pa'num PaWlg_ Inc)91-23-tlO21-PIata (Northern "ll9'ogales, Inc,192-23.OlJ26-TunZl.lnc (wry Turw)1I1·23-0027-RowIand Gflvel Bar {RJeharo~

Mercad County

91-240001-TurlOCll Rode Co91-240002-VOCIor Pet (Western Slone ProOuers, Inc.)91-24-0003 Robonson North Ptt

(Weslern Slone ProallClS. Inc I91·24 OOO4---S11va Pc (Western Slone ProdllCll. Inc I91·24-CIOOS--SnaIng Pot

(W_tem Slone Products, Inc.)91·24·0008-La Grange Ptt

(W"I&rn Slone Proaucts. Inc I91-24.()()l)9-LOs Banos Gfavel Co,

{LOs e.nos Gravel Co )91-24-oo12--e&nyon Rock Ptt IF S Rad.lncj91-24-<lOI3-PlInocha PlII~ 8ruackne<)91-24-oo14-Winton PIInl (M J Ruddy & Son. Inc)91·24·oo19-Carson Ptt 811

(Western Slone Proaucts, Inc.)

Modoc Counly

91-25-0001- Morgan Ranch CO, Inc(Morgan Ranch Co. Incl

91 '2S.OQ03-Caldwefl Onder Pl\ Mone (RoM CIlOweI)91-25-00G4 -Folch Gravel

Mono COUnty

9l-26-0002-HOt Cr"", KaoIe1 Mule(Standard InllustnaI M.......ls.ln<:l

91 ,26·0004-Fran~ Sam M.... (U S Purruce CO)1I1·26.0Q29-Lae Vonong {F\u$h C<eell) Ba'

(Harvey E & P"VfIoI P. HuIl8W1llJ91-26-0035--Marzano & Sons Sand & Gra"lll

(Marzano" Son,)

M01Ile..y County

91·21.(l()()1 -Sano Clty P,t {Monterey SInd Gon'I9MY)91-27-0002- Ma"na Prt (Monlerey Sand ComPi'lly)91-27-0003-Del Monle FOO'.., Quarry-Goanna

Construcllon

'" CAUFORNIA GEOLOGY SEPTEMBER/OCTOBER 1993

91·27.(l()()4-Mttz./Chelome Creek Pll-Griln'l.c•••",."""

91·27~lMdIdOuar!y

(NiIIlonal Retr.etonn & MlIIolII'alsl91·27-ooo&--l.apIs (AMC L.orMstal)91·27.(X)07_8l.M Rock Plle>-Wm J ClarI<91·27..()()()8-Anoyo5eco-Wm J CIarIt91·21~ PII-Wm J CIiIrk91·27-0011-Pine c.nyon PlII-Granltl Consrruebon91·27-OO12-51orMwi11 Canyon Quarry

(S)'iIr lncluSlnes, n:)91·27-001 S-PI:lrw A.nch EsIllI&l1Jladley Pit

..-.. ""'""""""I-"""""91·2ll-0001-Hi11old Smch & Son Pll91·28.000:2-0. ttl 0uiIrfy~ CiIl>yon

oe. ....,.. CO)91.~oghIin(HomesIak.• ......-.g-91.~ 0u8rfy (Sytr IndusInes. n: )1iI1.~c.nvonau.ny

!S'f'r Irduar-., n: IHev.cla Counry91·2S.(X)01--5i!n Ji.Mn Rlclge MoM Prospea

(Soskon Gl*l CorJIOr_191·:5-0002-Non1l SliIf Rod! Prodl.cts 0I.wfy91·~'1-.., PIlInl (T-=:herl AggrIlgill&S)91·29-OOOS-ShI-NeYa Plant 112 ISN·Neva, n: )91·29-OJ06.-Gt-.nom~ P\wlI

~&OS.~)

91·N-001G-fWge Rod! 0u8rfy~ T ae.-J91·29-0012-.1oecr--.x~CoIny91·29-001s-A.J M* Co (R.J Miles Co)

""""-~1iI1.-JO-llOO5--IMne L.a~. (Bluoe Otamond MiitenlllI)1iI1.-JO-D006--New Star (Owl Rock Prodl.cts)91-3O-OOO1-Qrang-.~ (I'I.J Noble Co)91·30.Q008-MariQn Qey (RNetsolIe Cement Co,191-3Q..00()9....R¥Ieho MISSlOO VItlJO

(R........ Cemenl Co I91-30-OO11-MlSSlOI'l VieIO Mlltertals. Inc

(M"SlOOVle,o MiII8I\II1s. Inc I91-30.oo12-Gypsurn Clnyon P~

(PIIafic Clay Prodl'Ct$)91-30-001-"EI TOf() MJl8l\ll1s. Parcell91-30.001 S-El TOf() Mal&rillis. Parcel II

Placer County

91·31~-.kleChevrNWl. MltiIlIow VlSUI91·3HlOOS-Uneoin Pil Clilyt (Gladding, McBeanf91·31.(lOO9..PatlOf'lIO/1 Sand and Gfavel91·31.ooto-.Qoll81 Rockhn AlMlrl9llt.,

(R C Colle!, Inc.)91-:11.0013-819 Gun Gran~.QualfY

(Big Gun M'1lIng Co I

PlUmllt County

91·32-0002-Chtlstef PI1 (Baktwon Con\fac1lfl9)91-32·0015-Sopeo' P~ (FHther RrY1If Miltefials. Inc,)91-32.oo16-Spanosh Cfeel< Aggfl9lltes. Inc

(Hale Ctlarllonl91·32.oo17-SMtfra AQW.tes92-32.oo1&-Sl<NoI PII (8a~ ContJacMg)

Rl.....lIld<t County

1iI1·33«lOt-Glen tvy lWemer Corp)91·33-0002-A...-.., SD'eet PI1

te L 'I'Mget' Construcbon Co,)91-33-Olllls-H1 AITIerQn~91-:13-OOO&-PiICIfic Clay PJtt (PiICIfIc Clay Products)91-:13«107-Motli1e SInd Co.91~Cana_Co, -cabamn91~R-.ncanyon

(Mofeno VIIItey SInd & GRveI. Inc I91-33-001G-Wem« Corp.(llen Ny91-33-0011~sSInd & ar.... !Chandws

p*", V.on SInd & Gt..,.q91-33-0012-a-.mon.: eona_ - e.dd\am 8folhenI......91-33-00134)S NO Sot fI,Jn<1ed S1iItea Tile Co I

9t-:l3.oo1-"Malln Road Plant (R J Noble CO I91·33.oo1S-Wyroc: Lilk. SU_ Ouar!y (Wy<OC. Inc,)91·33-OO16-3!d91-33-OO17....coron. Induslnill Sand PIOIICI

{Corona Indu5tnaI SiInd PfotectI91-33.()()I~GradeMa ........ CO Mor_VIIItey

(HI Grade MaIan;llS CO I91-33-OO2ll-Mount A__ Pot'2

(Ebnlr. Rudy MIX)91-33-0021_Mounlaon A.......... PIt'1

(Elsnof. Rucly MIX)91-3:).(lI)23..Corona Oay (fWerMlrt Cement Co,l91-33-0024--Srnolh SiInd (AtoertoOe Cement Co)91'~0u8rfy~Poru.nd

Cement Co,)91-33-0021-Corona 0u8rfy (c.lMal Co,)91~AecydIng I.me

",-one e.- ServIceI91~ PIt (Gtanol. Consln.oaonJ91-33-0031-Gamel PIlI tar- Cor1sUudIon)

91~V""au.ry

18cnl~lnc)

91-33-Olll6--Coto PIlI (8t:nI~_ Inc )91~ CiIn)oon PIIIIC L f'twnsl91~Flats IC L PtI8msl91~2~ lC L Pfwnlol91~(Owl Rode Proclucts)91-33-OQS9-.PaaIic~ ns..-..I P'"{P__

91~y~Co (DannosVouroger)91-33-OO69--Par'o_ InduslniIl Cenw

91..33-0071-Villey Rode & sand(Valley Rod< & SInd. Inc)

Sac..........to Counry

91-34«101-Van VIed< Rancho 5and & Gr , Inc91-34-ooll5-McDone1 Clay Pc (n:luIIoIl l01I )91-34.()()()6.-T8Od'Ierl -P«tuna~

(TfIOd1Iltl "WegiII8Il91-3<1«101~T-="-l-AapenIA (Teoc:hen AQgfegal"l91-3<1.CJ008-.-Ted1er1--Aapen IV (Teoc:hen Aggregal"l91-3<1.0009--Ted1en Aspen V (Teoc:nert Awregalesl91-34-0012-RlIncho CordoYalRMC Lonestar)9t -3<1-OOl3-t.Dwef 8<ad1ord Clay PIt (Sytllon·R8Id

Col9t -30t-OOI4--Sacramenlo Aggrllgiltlll, Inc)

9O-CZB-UPB·lltS9t-3ot·OOl1 Fuc.a...n South (Gran,te CORlltfUctlOfl

Col91·34-Q022-Hanlonl sanct & Gfavel. Inc

(PrltSton Hanlofcl, Sr.)9t ·34·0023-Amencan A....llf AlMlfegates~CIafkSri,91·34·0026-Si!aarllllfllo Aggregatos, Inc}

91·UPB-0201

san Benito County

91·3S·0001-Joe PI! (KCAC. Inc I91-:1S.()()()2~Trf$ Pinos Cfeel< Pll IH,I&da1e Rock)91 -3S-<lOO3--San Juan PI1 en (Hohdalll RoeIll91 ·J5.OOO4-SCL PII/ElclISa Road Quarry

IH-asctaI. Aodt)91-3~Ashtifsl·lawla(Wilbuf·EIIS COmpany)91 -:lS«106-PiIOCllIeS Ranch (San BenIlO Supplyl9 1·35.()()()8...Mlll Williams Sand & Gt1tY8l91-:15.ooog...Southsode Sand & Gra.....

(GrllfUl. Rod< Cornparfy)91-35-OO10--Hams Ouany (Granne Rode Company)91-35-OO11-Si1n Ben<1o 5and Plant

(GraMe Rock COmpany)91-35-0012-Anhur R. WQon Quarry

(GI~Rock CornpanyJ91-35-00I3-DoIomote 0u8rfy (o-d P Gr~9t-35-00loI---San Juan A$ptIiII (LO McClald1eyl91-35-0015-S1llr Canalll.

fSandman. Inc~91-35.()016-lomenl1s Mu.-tiIS (HiIIaclale Rode)

san 8emMcllno County

91-36-0001-Uvc 0u8rfy (TWIll McllnaIn Rod< Co)91-36-OOll2-Mounti1on Pass Mone (MoIycgrp. Inc)91~Plant~ Aod<Co, n:)91~PIanI~ Tn.ockIng_ Inc I91-36-OOO6-foo1h1 Plant fHaIQlIy Rode CO . Inc )

91-36.Q008-Amenc:an MIne Pro,ec:l Joont Vllflluf.(Palma MInrog CO,)

91-3&«112-San Bemardno (ClIlMa1 Co,)91-36-0013-Uplancl PIt 86 (CalMa! COl91-36-Ol)I<6-UpI8nd PIlI 4 & 5 (CalMal Col91·36-OO15-Caslli1 MounIiIInVMlIe"

('\rIC.-cI'( Gokl Corp.)9l-36-OO11-Soerfa Aggregat. Co (Donalcl G JOIy)91·36-001~MoI.wllilll1 Ouan'y

(Soulhwestem Pof1IlInd C«nent Co )91 -36-0021 Br1StI:II Dry lal<e (NabonlII Cllk)nde Co--,91-36-002'2-~ ... au.ry (R.vwtocle cern.n.-91·36-<1023-Qn;I Grande au.ry~ cern.n.-91.36-Oll2ol-Upl;1ncl Rock Planl:

(Bluoe lAamoncl /IotaterIiIG)91 -36-Oll21-8clro$CllYay Bcwrow Pll

(Noro> AmenciIn 0'Ien'c:aI Co I91-36-0028--EaII Gr...... PIlI

(Nonh AmenciIn~ Co I91-36-0029-T.1Ip Borrow PC

(Nonh AIIlenc:M aw..e. Co.)91~Op'fllllon lNOfth ""*'tan

Chernrcal Co.I91·36-0031-U1<e & MneraI Rescue:.-

(Ncm AmenciIn 0'IefNcaI Co )91-3S-0032-PartwIu-Proclucts. Inc.

(P....~ Produtu_ Inc)91-36-0033- HlIdor Mrne (Rheoo: ~I91~Gr-.~·Mann.lnc)

91-36-OQ3S-.(;o1o Quarry {CaIIbnla~C«nent Co_I

91-36-003S-6axIar Cuany~ Por1IanclC«nent Co.l

91·36-0031-SuperIClf Ouany~ POf1IandCtmentCO_1

91-36-00:J8-.~(Owl Rod< Proclucts)91-36oOO4G-lylle Creek (Owl Rod< Pn:lduds)91 .3ft.()(M I-Newt:>eny Spfw>gs 0ua1'l'Y,'MP'1 Cuany

(Wf$ttm Rock Proo2ucIs. inc.dl:Ia Cal Wf$1 Rod< Prvducts)

91·36.()()42-lIJceme Valley (Ht-GriIdEI Millef1lIIs)91 ·36.()()43-Cadiz Dry Lake-Lee ChemICa1. Inc91 -36.()()4S-MlIftlIa canyon (Pfo.z.... Inc.191-36.()()46-AgCOn.lnc (AgCOn.lncl91-36.()(l47-Qro Glanct. Rock Planl llndtlsu", As·

""'"91·36·0053- CIYSlaI H,lIs Sand & Gravel(Kern Rocl< Co.)

9 1-36-()05.t-(;uShllf>be1fY (M,tsublsn; Cllfn(lfltCorpofatlOfl!

91-:!6·00sS-Vlc!Of P1I29 Palms(Tafmac Canom,a, Inc_!

91-36·0056-Needles Pn (Tilrmac. Inc_)91·36·00s9-Fontana P,t (Bofal Resoufces, Inc)91·3fj·OO6O-Barstow P,11 (Boral Resoun:es. Inc.)91·36·006I~&yman P,t (Elofal R8SOUfcetl. Inc)91·36-0062-lane Mounlllon P1I (Bofal Resources, Inc_I91·36.Q063..Essex p~ (Boral Resou~. Inc.)9t·36-()()6ooI Barstow PllII (Elofill RBSOtI'eat. Inc I9t ·36-0067~Wh~.I<nobM'tut.RIdge l.imlls1Onll

(Pluess·StiIUlef)91 <16·0070-Redlands AggrOlg;lte (C.L Philmtl9t ·36-0012~Cfeek e-

{Aobeftson's Ready Mlll)91·36-0013-Ola Webster 0uiIny

{Aobllftson's Ready Moel91.,l6-0075-SouIMiIsI Bamow Bom:rw PIt (CaItr-191-3S-00~ EloffOW PIt (CaIIr-l91.)6.Ol)17-Newberry Bcwrow PIt (CMuwa)1iI1·:J6.0086--Fer!JIlZ", Arrtbof MII'Nl

(eo.ctIeIa V-., 0rglIf*: FIIft*Z8fS CO I91~SU_ (C L PhiIms)91·J6.OOl!9 BerltOoote Open-~ Mrne

(llNl*...·MiInn. 1nc.191·36-0090-W_ Reel Cuany (8rutlti.er·MMwl. ~I11·36-Oll91-Go1cl, 8<oM'l_ & Lac au....

~.·Mann.Inc..)11.364:l92-Gr...., Mcluf-. 0uiIny

~.Mam.1nc.1

CAUFORNlA. GEOLOGV 5ePTEMBEA/OCTOBER 1993 ""

91·36.(l()93-.$f1adDw MQunl;l..nJWMe Rocl<(~8I'.Mann. Inc)

91.,]6·009S-M\ld Hils (Teol'lllOO Mlne<aIs. Inc)92.,]6·0104-SiIYer u.ke MIl,e (K- 0 M,n,ng Co)91.,]6.()IOS-Mnc & AlurrM\iI OucuflltS

(Southwestern Porrtand C&mentJ91·36-0106-Wh~e Mountaon Quarry

(SoutI>westem PonliInd Cemenl)91·36·0107...()la Qua...-ies (SOul/1Weste1n Portland

Cement Co)91.36-Q lCJ6-.Caliche p~ (Southwesle<n PonliInd

CementCo)

s.n Diego County

91·3Nl002-NOrth TWIll Oaks VllIIo.ly QUlIfry(So. Coast Materials Co.)

91.:)7.()1()04-M,ssoonV~ Rock Plam(H.G. Fenton MatefW)

91·:)HlOOSMP~Rod< Plant fS3ndl(H G Fenton MatenaQ

91·:)7.()(J()6./iarll'lOl>jl' Glove Plam(H G Fenton Maleroa/l

91·37·0007-Carrol Canyon f>l3,nt

(H G Fenton Materiloll91·3].(II)08-8oo'ento sand CompcIny.lnc. (JoIvI Fbos)91 ·37.()(l()g-Wyroc Syeamo<e Quarry ('Nyroc. Inc.)91·37.(l(11G-u.kesille s..nd P,t {C.W McGrath. Inc.)91·37.(l(11 t-H'lIsOale Pi! fC.W McGrath, Inc.)91 ·37·00 13-S1m J Harris-see addenda9t·37.()()15-U C L.H San Marc:oa (Bea>:e<)91·37.()()16-Ocll;lnslOe/Ca!lsbad (SO. Coast Materi,

."9l.:)7.(l(119-TTT Quarry {Supenor Aeaoy M'~, L.P)9 I .:)7.OQ2!l-Hesl8l'·s Granite Co.

(Easl County Materials Co.)91.:)7.0Q21-81aughler House Canyon (AspnaM, 1nC_)91.:)7.(1022-McGratlt 8orrow P~ (CW McGrath)91.:)7.0Q24_M,ssKlll G40rge Pit

(Supeoor Ready MIx, L.P.)91·37·002&-M,1IIOI'l Valley (Calma1 Col91·:)7.0Q27-S!oan Canyon s..nd Co.91.:)7.(l()28-MossiQltV~ (Ex·Fentonl (CaIMat Co.)91·37.OQ2ll-Caroi canyon (CaIMal Co.)91·37·0030-CalMat~Poway (CalMa! Co.)91·37·0034-8 Monte p~ (Nelson & Sloan)91·3HI035-Qtay Ranch Pi! (Nelson & Sloan)91.:)7.()006-NltIson & Sloan PilIZ (Nellon & Sloan)91.:)7.0Q37-Borde< HightandS (Netson & Sloan)91 ·:)H1052-Na1lQl'l.ll1 Quarries

(Mike Johnson, Gary JOhnson)91·3H1057_The Pauma Valley Country Club

SIIn Joaquin Counry

91·:)9.(lOQ1-Ql!kwood u.ke P~ (Brown Sand, Inc.)91·3IHI002-Verl\lllis Pi! (Brown Sand, Inc.)91 ·39.()1()04-C1emeonl$ (TBId'Iert Aggregates)91·3g..00()5..Rose (Teoeheo1 Aggregales)91-39-0006-Tracy Aoek Plant(T~Aggregales)91-39.(lOQ7-Pe<lWa (Teichert Aggregatesl91,:)9-0008-Tracy Pit (Granite COnst~

",-""91·:)9-llOl&-AME Pit (Gla"'le COnStrucDon Company)91·:)9.(l(11G-Lone Tlee Depo$~ (Valley Rod<, dba

Wesl CoaSI Aggregates)91·39·0011-Kasson Aoad Pit

(F T G, COns1NCllOn Malerlals. Inc.)91·:)9.(l(11 2·MossdaJe Road pft

(F.T G COnslruC1ioo Matenalt, Inc.)91-39.()()I3-EI Raneno Rock & Sand, lne.

(EI Aandlo Rock & Sand, Inc.)91·39.Q014-Ker1inger_HucI< (RMC L.or\e$lilrl91.39.(l()I5-Ker1inger_Rhodes (AMC~91·39.(l()I6-Solari Pit (George Aeed. Inc.)91-39.QOI8--Fealherstone Aanch (Geoflle Aeed. Inc.)91·39·0019-Ma>... Aiverbank Pit (George ANd, Inc.)91 ·3900020-KRC Aggr.les

(1ormerly Aoc-Sa>n Gravel Co., Inc.)91·39.()()21-Vernabs Quarry (Tedlerl Aggregales)91~.(l(I22-MouclaIeRiIACh (Brown Sand, Inc.)

San Lula Oblapo County

91·4D-0003-Santa Margarita(Sou1tlOm PilCiIIc MoIbng Co.)

91-40·000s-Hanzllll Ranch-Red Aoek Quarryrt-/W HameD.Jr.)

91 .40·0006-6rugN!l~ P,I(~Iy GarCIa> & Eoleen Damon)

91.40.Q012-W,II(;o·Hernweck.BrilACh91 ·40.OQ 13-Rodty Canyon

{M.J HermredrJWlIIco Assoc.)91·40.OQ14 NewIlan (WIIcoAssoc)91·4{).(l(II5-M,ner M>IIe (M.J HtHmredrJWoIco Assoc)91-40.0016-T'ber Car1yon Sand P~

(Hearn Trucll,ng Inc.)91·40·oo18--Alamo Rock (A.J DIa", CoostruelKlll)91·40·0019-Urne MQUn\.lIIn Quany

(Urne Moun1a... Com~ny)91-40.0025-A1berti Ranch Red Rock Quarry

(Madonna> ConslrUClJOrl)9 I ·40·oo26-&anchi Pil (W0'\I0r CooslrllCllOOl91.40.OQ27-NayllfO Roe\< & Sand - NayllfO Creelc P'l

(AttHlr1 & A.~ 'NayajO Conete<e')91 -40·0030--Sabl\lls A........ Borrow P11

(City 01 P;JSO Aobiesl91·40·oo32-Muna.-. P,t (WeyncI< Sand & GraY(l/)91·40.()()36-Qr;e;Jno Sand CompcIny

(Ocea>no Sand Company)91-40-0039-3·S Ranch Pll (3·5 Ranch, n:!91·4{).(lD43-AIfDyO QeI 0$0$ Belld1

(W1l1lIOI COnSUUC\IOn)

S.n MalltO Counly

91-4 I .(l()O;2·a"sbane Quarry(A/nerJca>n Aock and Aspna>It)

91 .41.0003-LangIey H,n Ouarry llM!gley H,D 0ua>rIy)91 ·41·Q005-PitarC'lOS Quany

(West coaSI Aggregales, Inc)

SIInta Barbara County

91.42.(1OQ3-$rsquoc (Southern Paalic M,n'ngCompany)

91·42.()1()04_Parks Sand P~ (Parks u.nd and Canle

",-""91-42.QOO&-6ee Aock Quarry91-42-0007_Lompoc Plant (Celile Coo-PQfillion)9l·42·001o-Sognorelli AMIdv'Sile 2

(Set>ulveda> 8Iclg Materials lompoc, Inc.)91·42.()(1 I 2-Bogr'HJda (Coa,I Aockl91.42.()(113-Sisquoc (Coasl Rock)91.42.OQ15-Goodchild (Coasl Aodt)91·4Z·0020-Ehoocl Ranch (santa e-rball

Sand & TopsOIl)91 .4Z-0Q22-&lem:.n Pi! (GIllO,te ConstrUC1>O/l)

SIInl-a Clara County

91·43·0001--Q.wtner Quarry (0INeI de SIlva. Inc)9'·43.(l()O;2-8e1pa PilIA8Isdl Compan~)91·43.()OO:)-Azevedo au.ry (A.J. Ra,sdl Pawog Co.)91-43.()1()04-KaIser Cement Pefmante Quarry

(Kaa$er Cement)91.4:)·OOll5-f'oIak P~ Quarry (GraMe Rock Col91 .4:).()(J()6.LeXlOgion Quarry

(Wesl Coast Aggregales. Inc.)91-43-0001_Stevans Creelc Quarry. Inc

(St....- Creek Quarry, Inc.)

Santa Cruz County

91.44-0001-0hye SP/ongs Quarry. Inc.91-44.Q002_FeIlon Plant (Kais8l' Sand & Glavel Co.)91-44.(J0Q3..FeIIon Quarry IGraMa Construebon Co.)91-44.()1()04-otympla (RMC L.onestar)91 .44-Ollll5-8r)nny 0II0n Limestone & Sllale Ouarroes

(AMC LoneslaII91 -44-OOO6-Cabrillo Sand & Gravel

(LaIltllTMl W PaCkerl

Sl'Ia,la County

91.45.(lOQ1·Moumaln Gate limestone Cuany91·4S.(l()O;2-oear Creek sand and Gravel

(Northstale A$pI'1;Inj91·4S.()I()04_Andefson Collon'NOOd Concrete Products

fJ·F SI'1ea CoJ91-4S«JOll-NoIlhslale Asphalt, lne _I (Btacl< u.ne)

(Sylvia Sdvnrn)9,-4S.(l(l(»-Nonl1Slata Asptlan, lne a2lCiear Creele)

(&,Me ScI'1m,")

91·4S.Q010-8urney P~-Ameo-ocanResources91.4S.Q012-Gray Aock Quao-ry

(Cal3.....as Cemenl Co) CBAI91·4S.OQ13-Falkenour, (Cala_as c.menl Co)

CBRI91·4S.(l(I14-$hea Sand and Gravel (J F Shea)91·4S·0017-FaWlldale Rock Quarrv

(Yuba A..... Sand & Gravel)91·4S·0019-Agg'egate PrOducts (J.F SI'1ea, Inc)91.4S·oo21---Grystal C.eek Aggregate

(Jerry 0 CorTwlgdeerI91-4S.()024~Bradllll Saod Pn (Hal Creel\ COnslfUCIIOO)91-4S.0Q25-Nontlslate AsPl'1an_392·45.OQ27-Cow Creel< P~ (Gallen Brown)9 I ·4S·OO2ll---81aC1C Bulle C<nde<s fW....m C Haeklet)91·4S·oo29--Oak Aun Plt-LW Kall Co ,Inc.

Sierra County - Nona

SlIJklyou County

91·47·lll102-&lva Quarry (RotM.! F Silva)91·47-llOl&-Yreka TranSl1 MOl, Inc

(Vre... Trans<! MOl, Inc)91-47.OQ1G-Rebbeca & Deboy Mille

(SSB Cinder Company)91·47.OQll-Glass Mountaon Pumoce, Inc

IGtass Min. Pumoce, lne,l91·47.Q013-8lodc Pumoce 1·4

(Glass Min PumICe, Inc.)91-47·oo14_t.loore·, Grayel (AOCI'IlIf11 S MOO/e)9147·oolS-$pr1ngtloil M'1!fl (Sousa Ready MOl. Inc)91·47.()(I1G-Upton M.ne (Sousa Realty MOl. Inc.)91·47.Q017_T,uax Quarry (Kiewil PaaliI: Co I91·47.()(116_Kldder CrOOk Quarry

(TlICnOpp E~caYil1lng)

91'47,OOI9_BaIIIlart Pil (J F Shea Co., Inc)91·47.OQ20-Fort Baker RiIACh (J F Shea Co, Inc)91-47.()021_ABA Aanctl fJ F Shea Co.• Inc.)91-41-0023-Shastal,te Ond" M....,

(F'ad W Burton & George C,OWllII)92·47.0Q24-C1!erry C'Dek~

(Paragon Partnelsl'itP)91-47.()(l25-.JJJ AallCl'1 (DlMl BlOnd.)92-47.()(l26-0enms York

SOlano County

91·4B.()()()2_Leke Herman Quarry(Syar InduslneS. Inc)

91 -4ll.0Q03-Potrero Hills landfill (Sy&lln<lusrr.."Inc.)

91·48·0004-Potrero HillS Quarry (Syar IndUStries, Inc!91·48-OOO5-Goodyear Qu.arry (Par"" P~)

{Syar In<llJstnes. Inc I

Sonoma County

91.49·0003-WotIdSOlIlI (Ka.ser Sand & GraYlll

",-""91·49.()1()04-Canyon Aock Co.. Inc. (Wendel T'i!>llQlIl91 -49-0005-lelmori", Qu.arry

(NortI'1 Bay ConslrUCllOn, Inc.)91·49.0Q06- Slony Poom Rock Ou<vry

(Stony Poont Rod< Quarry, Inc.!91.49.CJOO7-Hagernann Rancl'l Quarry

{Stony Poon1 Rock Querry. Inc.)91-49.())()&..8onoma Aoek Company

(C A Fert,k;k. Inc.)91.49·0009-Nuns Canyon Cuany, Inc,91 .4g.Q012-PetalU<Tla Quarry

(Ameo-kal Aoclc & AsphaIL Inc.)91-49.Q013-.Jerry De Wilt Trucking, Inc.. dba De w,n

Sand & Grayet (Jerry De Wm)91·49.Q014_Vomark Property

(CloYerd<lle ReaIty·M,~. Inc I91.49.(l(115-Log Pond Ente1p/'ses, Inc. (Clcwerdale

Aeady·MI>:.lncl91-49·oo16-Gerdes Proj:lefly

(CloIIerdale Aeady.MOI, Incl91·49.Q011_Tatge Propllf1y

(Cloveraala Aeady·MOI, Inc)91 049.Q018-Gar,baIdl Property

(Clcwe<dille Ready.MOI. Inc.)91.49·0019-Carano Property

(Clcwerdille Aeady·M,x, Inc.) -,,.

CALlFOANIA GEOLOGY SEPTEMBEA/OCTOBER 1993

e1"'~ PfOl*1Yl~ AHcly.MG. Inc I

D1 .•D~1 ....~~O".r<yIG~8r ......... 1DI"'~·R.dWn FINt<~ 1*$

(Spr 1"".,.,_. InC: ID, ...~T"" BndgetPlanl

~""""'''''''''IDH9-0027-Dry CIwk OWoMl-WeASICIe~(Y.-d) (S,.. tndlrSlnK. Inc.)

11"'!)O(l28 ""-' RMtr~ve..d &Irs(Sy.- __. lnc:·l

""'~ T..~ PiI.(V8II«fIlSv-~ Iooe.)

11...10030 t1eeHst="9 T__

~~~~)

~ •.....-. IN::.)11-6-C1C02-4r.i11k w.- Q>any l800Nft Co • Ille.t11~" c.n.ilI (Austill c..... R-'Y_.....IHtJO(I)S 8oIwI" c.n.ilI11""OO'J6 "diw~o-.y....--11...~$M'd"Gf_(Sow.-c....,11"'9-OlHO-Twwo Bridgn PWlI...stMIon 2__I

II..f,I-CIl)41~ SMd .. arr..Ito"_

11"'I-QOoI2-brn1ral'1~.Inc.11"'~ Rode c.. (00I'I~11 ...10(144 aoob au.ny (Wetley "- StoobJ11~Gu6eh a....v Ire:.cs.~ a.....,.. In::)11"'~w.IPropIfty

(Qww.... AI.oy·...... 1nI;,)

CIa..I...... C_"'"

11~1~Pi1.(VI""'"s.- ProclIcIa, Ire:.)

1I·~OOO2-&:twnlc1 P~

(VI-*" su-PI'~ 1nc.111.!1Q.-OOO3-Olatln 0 w.t.-" SOn. Ire.

(Westefn Slone Pf~. Inc.)

1'-~ 5afld" GrawI.,.~w__ (MJ AuGlJVl11·5O-ODQ7-u GI.nge (Iol.J Ruddy!11-~1'"8 MafQ tr1lI Son, Inc.1,~RanchPil

(VI....""n $/.",.. p,OINcIi. Inc.te1.!IO-OO'O-U Gfange (George AMd. Inc.)I' .!IO-OO114iGdge "-ncfI PiI. lGe0fv40 Reed. I,.,;:.)9'·~OO'2""" (George AMd,Inc.)DI_50-00I:)-Aobef1'. h''Y rrl" _100.1e1.5().OO14-Wllllfbd rr/11 Maleri")" .e;o.oo15-Ung10flll~pIey92~UI-Fleecl W.,erlo<d (Geofge Reed, Inc.)

Sutlw County

91-$I.OQOl-8utt. Rock" Gr-'

TMuJnll CouMy

11-52.0Q02-C1rf1llChMl Aoc:k eomp,.ny(Carl J WoodiI)

91.~2..()(l()6-~ Cfeek Rode. Inc. (Joe COoJIItf)11.~.OQ07-A1d 8Ul Aoelc - W--' P10peIty

(I/aIWf' Rock Pfoclo.ds. Inc.)91-s2.ooo1.Rtd Blull Rod< _ 0.. PiVRed ea...

CoMlt (V...,. Rock ProducU. Inc.)11-52-OQ1fl-TMWl'j' Aock IIIId 5afld11_52-OQ17~ ('1*1" TIUdl'e~ Inc.)91.~.(1(l'23-Oyeer.k 0rIarry (NonIe lnduIlries)11l-52-oo2S-Hub~(l(un s-Alo)91·52«1Z1~ Cleel (MoIthIalIl~'1-s2~CfMk Rod<

(Sgl4I" u.~TrWry County

1I~~i-,I"-~el.~.Q007-uGl...U- IE. Rock, Inc.)

Tulano ceunty

9,-S4-OOQI...f'fU,I SWod Co(PonefYih RHOyM... lnc.)

91.S4-«102-lee~ GI Boffo- Pc.1.$I-0005-&GenGl ~~9,.$I.QC1Ol)-l(awNh R Roct Co

(K-..n~ Aodt Co 191-M-0007-lemon Cow(RMC~91_54-OOl»-ledbet1tlBooow Pit

(E~~B.~

91.S4-OQ12~ 801I0oI'" DIy CIwlc(M_Ready ..... eoner_. Inc.)

1I.$I-0013-UmDne-G<w*'"{Thoma N."""'"Tea...

91-54-001~T_~ .. Sont. Inc.I81-54-0016-8"_..... (.h I..lnI).,-s«X!17-f'RM Aoc:k PWlI C.~ RHctr·.... Inc.1

~n~lJ-OMf ~RMclI(sr.n Kif992-~"""~a.y

(OeIignoBondl~91.S6-OO2l-o-' CNelo a.-r,

~e-Rock~

T""-"-'County

91·5S-OOO'I......---n MnI (Soncn M-.g Corp)91 ss-ooCIIl' _

(Golf" C NiMIeni81.~'-- a-..,. twm- G C<volcl81_5S-OOl&-T...""-- au.ny(Geo<ge _ Inc.l

V_uno County

el.M-0001-Ridg1fi11 IP-*~~81.56-0002-0.1 Not1ll~ P-ek IoHIno

"""""".,--56-(1(1(D-f'UlI .....~ PKiIIe~

""""""81.56-0Q04-Vet1lufl ANe< (SoulIwIn p.ac Miling

""""""'1.56--OlXJ!S-KnoI (5ol.4tlem PKlIc~~9',56-0006-&oggt Rlad (SouIhem PKIlle MiIinQ

""""""91-56-0001-El Roo~ Pacllk 1oli5nll""'-,

8'-66-OOO&-SIo1lCOy~ P8c* ""ling

""'-'"91.56-OQ1ll-GrlfTMll canyon Rode aua,...,.(8asl RodeP~)

8'·56-001' ........,. SIrittI Ouany (A.J 5andt<a)81.56-OQ13...sespe Oeell (Sespi Rock ProducIIl81.56-0014-8lue S* au....,.

(eu. Slaf ANdy ""', Inc.)9' ·56-00I6--Calave,.. Cuyama a."..um

(H. L.IfTI&ICa,ltvefu Cemtnl).,.i!i6-00,r-ealMal Co.-SMICOy tca-lMtl Co.}el.56-00,&-CalMal Co.-Feno SBlicoy (CllMal Co.)1'-56-OO2O-Ha1oCl< PC lGl...... e-fUCllon)81·56-OO2!-Tapo e-,on Mina

(P W a~.rol CoJCZS Cofp.l81.56-0022-Se1pe Fbck lJohn C Nick4'Q81.56-0025-TM 0jIi Ouany (SCtwI'ld eor.1NCtiDtI)81.56-0026-8 Rio Planl (Soufhem PllCllIc lIIi1ing)',.5&OOV-8rWO fbaol PIanl

tsoud-1 PKi*; MiIIi'Ig ConIpMyl91·~~ Inc. {81«1 JoowII

V_Couaty

91.S7.OQ02-TedIeI1-WOlldI8I"ll PIanl(Te<che<I AggII9*')

11_S7.oocn--T-.c:MII-AIofI Aanl(T.......,Aoll~1

81-57'OOO--TeochIII......... (Totd'oeI1~J'1-57~"s--.1nc~ .. $OM.1nc.1

81.57~&s-..1nC

CSct-..ubef" $OM. Inc.I81.S7.OQ01-S011no Concr..~-­81.57-Ol101-So'Mo e.-e- 01..0.--1

(Solano Conefetet

81.S7.~ Oeel< Pil (SI'8f IIIlNsI'ies. Inc.)91.S7-OQ1G-Wocdancl facility

(GIaN:e~ Co)

VubaCounty

81.S8-0001-W.-n AggI~. Inc.81 se.0002__ PlI (fko-.n Cont..."u,'V!

.,-s8-0003-YutIa"" G:JldCo(V..- W.. Gold, Inc.)

II.s&-OCllM-Spertlec:lc Qua,..,. (C8I1 J WoodI)81-1i11~Sand"0<""Co.

91·5a-OOOli HaIrooood PWlI(T~""'19-.j81·S8-0007-Wl»MIaftd Cl'¥' PIt (GIIadIJing, McB.n)81o$6.OllI1-Yut.~ S¥d" GIawl81~12~PI rn- .. ar..,.q

ADDENDA

The ~rementsof AB 3098 do notapPj to certain lands in the State. 1bJs.materials from operationS on those landscan be purchased by State agencies with­our. !heir being induded on me regd.arAB 3098 list As a courtesy to operatorson those lands. we have incILded ope.a­tion!i of whk:h we are aware

For federal lands, AB 3098's req.Jire­rneAS apply only to thaw agmde5 wiIh\Yhich the Departmenl of Conservationhas a Mernocane;bn of UndeTstandingn- are lhe Bureau of Land Manage­meR and U.S. Forest Service. Operatorson other federallancls inchJde:

Superior Ready Mix Concrete,Miramar N.A,S., San Diego

SimJ. Harris Company,Miramar N.A.S., San Diego

Teichert Aggregates,U,S. Bureau 01 Reclamation,Mi"sis~ppl Bar. SlKRlmenlo

Also exempted are operations onOepllrtmenl of W~ler Re5OUrce:s kinds for\Yhich a reclamation plan has been ap­praYed by that department. This includes:

ASTA Construction, Rio Vista:Slale Reclamation Board Lease 87-2

AB 723, an urgeocy biD now beforethe k!gisIalure. states thai: Indian landswill noI be SI.b;ect to the~ISofAS 3098. Upon_. the,_

operations..wl be in this category:

CalMat Co.. Paia ReservationCalMaI Co.• Maongo/!lannlng

,..

STATE OF CAUFOANIAll-lE RESOURCES AGENCY

DEPARTMENT OF CONSERVATION

CALIFORNIA GEOLOGYDMSlONOF

MINES AND GEOLOGYPO eox2980

SACRAMENTO, CALJFOANIA95812-2geO

USPS3S0a.-o

ADDRESS CORRECTlOH REOUESTED

SECOND CLASS POSTAGEPAID AT SACRAJ,lENTO, CAUFORNIA