STATE OF - ARNOLD SCHWARZENEGGER, GOVERNOR SPECIAL REPORT 190 CALIFORNIA GEOLOGICAL SURVEY THE RESOURCES AGENCY - MICHAEL CHRISMAN, SECRETARY FOR RESOURCES RELATIVE LIKELIHOOD FOR THE PRESENCE OF NATURALLY OCCURRING ASBESTOS JOHN G. PARRISH, PH.D., STATE GEOLOGIST DEPARTMENT OF CONSERVATION - BRIDGETT LUTHER, DIRECTOR IN PLACER COUNTY, CALIFORNIA - PLATE 1 OF 1

120° 00' 04" 120° 07' 34" 120° 15' 04" 39° 22' 30" 120° 22' 34" 120° 30' 04" 120° 37' 34" 120° 45' 04" 120° 52' 34" 39° 22' 30" RELATIVERELATIVE LIKELIHOODLIKELIHOOD FORFOR THETHE PRESENCEPRESENCE OFOF NATURALLYNATURALLY OCCURRINGOCCURRING ASBESTOSASBESTOS ININ PLACERPLACER COUNTY,COUNTY,

R.17E R.18E R.16E R.17E R.16E CALIFORNIACALIFORNIA R.14E R.15E R.15E R.13E R.14E R.12E R.13E 242424 303030 222222 232323 242424 303030 191919 202020 212121 222222 232323 242424 191919 202020 212121 222222 232323 242424 R.11E R.12E 80 KiddKidd LakeLake 282828 272727 262626 252525 202020 212121 222222 232323 242424 191919 262626 252525 303030 292929 282828 272727 262626 252525 202020 212121 222222 292929 282828 272727 14 262626 252525 303030 292929 262626 252525 303030 292929 282828 272727 262626 252525 303030 303030 252525 PalisadePalisade 89 313131 CascadeCascade LakesLakes 262626 252525 313131 282828 272727 262626 252525 LakeLake ValleyValley ReservoirReservoir LakeLake IceIceIce LakesLakesLakes $$ 262626 252525 303030 292929 IceIceIce LakesLakesLakes $$ 262626 252525 LakeLake ValleyValley ReservoirReservoir $$ 262626 252525 T.17N By 303030 292929 282828 272727 303030 292929 323232 333333 343434 353535 363636 272727 262626 252525 303030 292929 353535 363636 313131 323232 333333 343434 353535 363636 313131 292929 282828 333333 343434 353535 363636 313131 323232 333333 T.16N 363636 313131 323232 333333 343434 353535

T.17N 343434 060606 333333 343434 353535 363636 313131 323232 333333 343434 353535 363636 313131 323232 T.16N 020202 010101 313131 323232 333333 343434 050505 040404 030303 020202 010101 353535 363636 313131 323232 030303 020202 010101 060606 050505 040404 030303 323232 333333 343434 353535 363636 040404 030303 020202 010101 060606 050505 040404 267 020202 010101 060606 050505 040404 030303 020202 Chris T. Higgins and John P. Clinkenbeard 030303 020202 010101 060606 050505 $$ 040404 040404 070707 030303 020202 010101 050505 040404 030303 020202 010101 060606 050505 040404 111111 121212 060606 050505 040404 030303 020202 080808 090909 101010 111111 040404 030303 020202 010101 060606 050505 040404 111111 121212 070707 080808 090909 101010 050505 040404 030303 020202 010101 101010 111111 121212 070707 080808 090909 101010 111111 121212 070707 080808 090909 101010 111111 121212 090909 101010 111111 121212 070707 080808 090909

080808 181818 111111 121212 39° 15' 00" 090909 101010 111111 080808 090909 101010 R.11E 141414 131313 080808 090909 101010 111111 121212 070707 2006 R.10E 161616 151515 141414 131313 111111 121212 070707 080808 090909 101010 181818 171717 161616 151515 080808 090909 101010 111111 121212 070707 151515 141414 131313 181818 171717 080808 090909 NN 101010 181818 171717 161616 151515 141414 131313 NNooo 161616 151515 141414 131313 181818 171717 161616 151515 141414 131313 oorrr 121° 00' 04" 171717 161616 151515 141414 131313 181818 171717 rrrttthhh 171717 hh FF FFooo 131313 39° 15' 00" rrrkkk 141414 kkk AA AAmm 191919 eee 171717 161616 151515 rrriiiccc 131313 181818 171717 161616 cccaaa 161616 151515 141414 131313 181818 202020 212121 222222 232323 242424 171717 161616 151515 nnn 141414 131313 181818 171717 R.18E 232323 242424 191919 202020 212121 222222 171717 161616 151515 RR 141414 131313 R.17E 202020 212121 222222 232323 242424 191919 iiivvv 212121 222222 232323 242424 191919 202020 212121 222222 232323 242424 191919 vvveee 191919 202020 212121 222222 232323 242424 191919 202020 rrr 191919 202020 303030 222222 242424 232323 212121 232323 191919 202020 212121 212121 222222 232323 242424 191919 202020 303030 292929 282828 272727 262626 252525 202020 212121 222222 232323 242424 191919 202020 262626 252525 303030 292929 282828 202020 212121 222222 232323 242424 191919 292929 282828 272727 262626 252525 262626 252525 303030 292929 282828 272727 262626 252525 303030 252525 303030 292929 282828 272727 262626 252525 303030 292929 282828 262626 252525 303030 292929 282828 272727

272727 292929 282828 353535 363636 252525 303030 292929 282828 363636 313131 323232 333333 343434 292929 282828 272727 262626 252525 303030 292929 282828 272727 262626 353535 363636 313131 303030 343434 333333 343434 353535 323232 333333 343434 353535 363636 313131 323232 DutchDutch 363636 313131 323232 333333 343434 353535 363636 313131 323232 333333 343434 DutchDutch 353535 363636 313131 323232 333333 343434 353535 363636 313131 333333 28 333333 FlatFlat $$ T.16N $$ 333333 323232 333333 343434 353535 363636 313131 343434 353535 363636 313131 323232 313131 323232 333333 343434 353535 363636 T.15N NorthNorth ForkFork AmericanAmerican RiverRiver 323232 333333 T.16N 1 0 1 2 3 4 020202 010101 060606 MMiiiddddlllee FFoorrrkk AAmmeerrriiiccaann RRiiivveerrr 040404 030303 020202 010101 060606 MMiiiddddlllee FFoorrrkk T.15N 060606 050505 040404 030303 040404 010101 040404 030303 020202 Miles 010101 060606 050505 040404 030303 050505 030303 020202 010101 060606 050505 050505 040404 030303 020202 050505 040404 050505 040404 030303 020202 060606 050505 020202 010101 060606 040404 030303 020202 010101 060606 040404 020202 010101 060606 050505 050505 030303 020202 050505 040404 030303 020202 010101 060606 010101 060606 050505 040404 030303 020202 010101 060606 040404 030303 202 4 050505 R.09E R.10E 89 F E A T H E R H E A T F F E A T H E R H E A T F E R H E A T F F E A T H E R H E A T F F E A T H E R H E A T F E R H E A T F F E A T H E R H E A T F E R H E A T F F E A T H E R H E A T F $$ Kilometers 060606 121212 070707 101010 111111 121212 090909 070707 080808 121212 070707 070707 080808 090909 101010 111111 070707 080808 090909 101010 111111 080808 090909 101010 111111 121212 070707 121212 111111 Scale: 1:100,000 RollinsRollins 070707 070707 080808 090909 101010 111111 080808 090909 111111 121212 090909 101010 111111 ReservoirReservoir 101010 090909 101010 ReservoirReservoir 121212 111111 121212 111111 121212 070707 080808 121212 070707 080808 101010 111111 121212 070707 070707 080808 090909 101010 LakeLake TahoeTahoe 141414 131313 181818 171717 181818 171717 161616 151515 141414 181818 171717 161616 151515 141414 181818 171717 161616 151515 141414 131313 Projection: California State Plane, Zone 2 181818 171717 161616 151515 181818 171717 161616 151515 141414 161616 151515 141414 131313 80 131313 161616 151515 141414 131313 181818 131313 181818 171717 Datum: NAD83 131313 18181814 131313 181818 171717 141414 171717 RR R 171717 RRR 141414 161616 161616 151515 I II 151515 151515 II I 151515 Units: feet 141414 V VV 161616 141414 131313 VVV 141414 131313 171717 161616 131313 181818 151515 141414 131313 181818 171717 181818 E EE 151515 181818 EEE 161616

R RR RRR 232323 242424 191919 202020 212121 222222 232323 242424 202020 212121 222222 191919 202020 212121 222222 232323 242424 242424 191919 202020 212121 222222 191919 202020 212121 222222 232323 212121 222222 232323 242424 232323 212121 222222 232323 232323 242424 191919 UUU BigBig ReservoirReservoir 191919 202020 212121 222222 39° 07' 30" 222222 232323 242424 191919 UUU BigBig ReservoirReservoir 232323 242424 191919 202020 222222 SugarSugar PinePine ReservoirReservoir 232323 242424 202020 SugarSugar PinePine ReservoirReservoir L L L 202020 212121 LLL 222222 212121 222222 222222 T T T 232323 TTT 212121 242424 232323 242424 202020 242424 191919 R R R 222222 232323 242424 191919 202020 191919 202020 RRR 212121 222222 191919 202020 212121 AAA

121° 07' 34" MMM 272727 262626 252525 303030 292929 282828 272727 262626 252525 303030 292929 282828 303030 292929 282828 272727 262626 121° 15' 04" A A A 252525 121° 30' 04" 121° 22' 34" AAA 262626

FFF 292929 282828 272727 272727 262626 252525 303030 303030 I II 262626 252525 303030 I I I 262626 252525 39° 07' 30" 292929 C CC 272727 282828 CCC 174 272727 262626 292929 282828 F F F 262626 292929 F F F 262626 292929 FrenchFrench MeadowsMeadows 89 282828 F F F 262626 252525 303030 FrenchFrench MeadowsMeadows 252525 282828 272727 252525 282828 272727 252525 282828 272727 OOO $$ OOO 303030 292929 $$ OOO 303030 292929 $$ ReservoirReservoir $$ ReservoirReservoir $$ ReservoirReservoir RRR RRR 363636 RRR 353535 313131 323232 333333 343434 353535 363636 TTT 353535 313131 323232 333333 343434 353535 TTT 323232 333333 343434 363636 313131 323232 333333 343434 T TT 323232 333333 343434 363636 313131 323232 333333 343434 EEE 323232 333333 343434 363636 313131 323232 333333 343434 EEE EEE 363636 313131 353535 LLL 353535 363636 313131 353535 LLL 353535 353535

SSS T.15N SSS SSS 323232 333333 343434 UUU 323232 333333 343434 333333 343434 UUU353535 363636 313131 333333 343434 353535 363636 313131

333333 343434 353535 363636 T T T 313131 313131 T T T 363636 313131 T T T 363636 AAA 313131 353535 363636 AAA 353535 A A A 353535

323232 HHH 343434 323232 HHH 343434 T.14N 323232 HHH 343434 FFF 333333 333333 FFF 333333 333333 343434 323232 343434 323232 343434 323232 I I I I I I 353535 353535 363636 313131 I I I 353535 353535 363636 313131 353535 353535 363636 313131

363636 333333 343434 T.15N L L L 363636 333333 343434 L L L 363636 333333 343434 L L L 313131 323232

ColfaxColfax Colfax Colfax L ColfaxColfax L L L L L 050505 L L L 050505 050505 040404 060606 050505 040404 030303 020202 010101 T.14N 050505 040404 030303 020202 010101 050505 040404 030303 060606 050505 040404 030303 020202 010101 020202 010101 060606 060606 020202 040404 020202 060606 050505 040404 030303 GGG 010101 040404 030303 GGG 020202 010101 010101 040404 030303 XXX 020202 010101 060606 030303 020202 XXX 060606 030303 020202 X XX I I I 060606 050505 060606 050505 040404 030303 020202 III 050505 060606 050505 040404 AAA 050505 060606 050505 040404 AAA L L L 040404 010101 HellHell HoleHole A AA LLL 040404 010101 LLL 030303 020202 HellHell HoleHole FFF 030303 020202 030303 020202 F FF 020202 030303 LLL 020202 010101 040404 030303 LLL LLL 010101 040404 L LL 060606 050505 I I I 060606 050505 ReservoirReservoir III ReservoirReservoir III ReservoirReservoir

OOO 080808 O OO SSS 080808 SSS 090909 CCC 070707 101010 111111 121212 CCC 070707 101010 111111 121212 101010 070707 080808 090909 101010 070707 080808 090909 121212 111111 101010 111111 HHH 121212 111111 101010 111111 HHH 070707 080808 090909 101010 111111 121212 070707 080808 090909 070707 070707 080808 090909 rrr101010 I I I rrr III rrr eee L L L eee 080808 090909 101010 111111LLL 121212 121212 070707 111111 121212 vvv 080808 080808 090909 101010 111111 121212 121212 070707 080808 090909 101010 111111 121212 iivivv 080808 080808 090909 101010 iii LLL 070707 080808 111111 LLL 070707 080808 090909 101010 111111 RRR 090909 101010 101010 R RR 101010 111111 090909 nnn 111111 090909 nnn 121212 aaa 181818 NorthNorth ForkFork AmericanAmerican RiverRiver 121212 080808 aaa 181818 NorthNorth ForkFork AmericanAmerican RiverRiver F F F 080808 ccc FFF 070707 iicicc rririi 171717 A A A rrr 171717 AAA F F F eee FFF eee 181818 161616 141414 131313 U U U 181818 161616 151515 181818 151515 141414 131313 UUU mm 151515 181818 151515 A A A mm 131313 171717 161616 AAA 151515 141414 131313 141414 161616 151515 141414 171717 161616 AAA 151515 141414 141414 161616 151515 141414 LLL 181818 171717 161616 A AA 131313 171717 U U U LLL 181818 171717 161616 131313 171717 UUU kkk 181818 T T T kkk 181818 TTT rrr 141414 L L L 131313 141414 131313 rrr WWW 141414 LLL 131313 141414 131313 WWW LLL ooo 171717 WWW 161616 151515 131313 181818 171717 161616 151515 ooo 171717 161616 151515 141414 131313 181818 171717 161616 151515 T T T 141414 FFF TTT 181818 171717 161616 FFF 181818 171717 161616 181818 171717 161616 EEE EEE 151515 EEE 151515 161616 151515 llelee lll

151515 161616 T B E L T B E L T B E L lll 141414 T B E L T B E L T B E L I I I 141414 T B E L T B E L T B E L I I I 141414 ddd I I I 131313 181818 171717 ddd 242424 131313 181818 171717 ddd 242424 131313 181818 171717 242424 BearBear RiverRiver MMM dd BearBear RiverRiver MMM ddd BearBear RiverRiver MMM iididd ZZZ ererer ZZZ 191919 202020 ererer ZZZ 191919 202020 ererer 191919 202020 AAA MM vvv 212121 232323 AAA MM vvv 212121 232323 AAA iivivv 212121 232323 O OO iii 222222 OOO RR 222222 191919 202020 212121 RR 222222 191919 202020 212121 RRR RR 222222 191919 202020 212121 RRR RRR 242424 232323 232323 N NN 202020 212121 222222 232323 242424 nnn 232323 242424 212121 222222 232323 NNN 191919 202020 212121 222222 232323 ooonnn 242424 202020 212121 222222 191919 ooo 202020 RR R.16E R.17E CampCamp FarFar WestWest E EE ccc 191919 RR CampCamp FarFar WestWest EEE 232323 242424 iicicc 191919 uuu R.08E R.09E 191919 202020 212121 222222 232323 242424 242424 191919 202020 212121 222222 232323 242424 bbbiii uuubbb 191919 202020 212121 222222 232323 242424 242424 191919 202020 212121 222222 uuu iiiccc 212121 ReservoirReservoir 232323 RR cccooo 191919 202020 ddd 222222 RR nnn 212121 222222 dd 212121 nnn 232323 aaa RR 242424 a aa 191919 202020 iiivvv ooo vvveee 272727 222222 MichiganMichigan eee 292929 282828 272727 222222 ZZZ MichiganMichigan rrr 292929 282828 ZZZ rrr R RR 303030 292929 303030 292929 O O O 282828 R.07E R.08E OOO ll l 252525 282828 303030 ll l l ll 252525 303030 ll l BluffBluff 262626 272727 262626 N N N BluffBluff 262626 272727 262626 NNN 282828 272727 262626 252525 282828 272727 NNN i i i BluffBluff 282828 272727 262626 252525 282828 272727 292929 292929 hhh 252525 303030 292929 303030 292929 R.05E R.06E EEE hhh 252525 303030 303030 303030 EEE tt t 303030 282828 272727 262626 303030 292929 282828 272727 262626 252525 t tt 252525 303030 292929 282828 272727 262626 292929 282828 272727 262626 252525 252525 sss 252525 292929 282828 272727 303030 252525 s ss 262626 292929 282828 272727 303030 292929 282828 eee 272727 262626 292929 292929 282828 272727 e ee 272727 323232 272727 262626 rr r 282828 323232 262626 r rr 282828 R.06E R.07E 252525 ooo 292929 303030 262626 303030 o oo 303030 R.15E R.16E 252525 FFF rrr R.14E R.15E 252525 RRiiivveerrr 313131 BearBear RiverRiver ForesthillForesthill iccaann RR 363636 313131 BearBear RiverRiver eerrriiiccaa 323232 333333 343434 353535 kk AAmmee 353535 363636 313131 323232 333333 oorrrkk 353535 363636 313131 FFoorrr 333333 343434 313131 lllee FFoo 313131 323232 333333 343434 T.14N 313131 F F F ddlllee 313131 323232 323232 333333 FFF 363636 iiidddd 363636 313131 323232 333333 343434 353535 363636 MMiiidd 363636 313131 A A A 343434 353535 MM 363636 363636 AAA 313131 353535 323232 333333 343434 353535 353535 323232 343434 323232 333333 343434 353535 313131 353535 U UU 323232 333333 343434 343434 T.13N rrr 313131 UUU 333333 343434 363636 eerrr 313131 U 333333 343434 353535 333333 iiivvvee 323232 iiivvv 343434 323232 LL L 363636 313131 323232 RR 343434 323232 LLL 363636 313131 353535 rrr RR 353535 rrr 333333 T T T eeaa 333333 LakeLake CombieCombie TTT T.14N BBee 39° 00' 00" 050505 040404 030303 020202 010101 060606

W W W 050505 040404 030303 020202

W W W 050505 040404 030303 020202 W W W 030303 020202 010101 060606 050505 040404 030303 020202 010101 060606 120° 00' 04"

010101 060606

T.13N 010101 060606

010101 060606 O O O 060606 050505 030303 020202 O O O 060606 050505 030303 020202 O O O 010101 060606 050505 040404 030303 020202 030303 020202 120° 07' 34"

060606 050505 040404 020202 050505

060606 050505 040404 020202 050505

060606 050505 040404 020202 050505

L L L

010101 050505 040404 030303 020202 010101 L L L 010101 040404 120° 15' 04" 020202 010101 060606 050505 040404 030303 020202 010101 060606 050505 040404 030303 020202 010101 L L L 030303 010101 060606 050505 040404

020202 010101 060606 050505 040404 030303 020202 060606 030303 060606 050505 020202 010101 060606 050505 040404 030303 020202 060606 030303 ZZZ 060606 050505 ZZZ F F F ZZZ 040404 030303 020202 060606 F F F 040404 030303 020202 060606

F F F 040404 030303 020202 060606

O O O 030303 OOO 030303 OOO 030303

C C C C C C ?? C C C NNN ?? ?? NNN

?? ?? ?? R R R R R R EEE ?? R R R EEE ?? ?? ?? EEE 090909 101010 111111 121212 070707 39° 00' 00" ?? ?? ?? ?? ?? ?? 121212 070707 080808 ?? ?? ?? ?? 121212 070707 080808 ?? E E E ?? ?? ?? 121212 070707 080808 ?? E E E ?? 070707 080808 101010 111111 ?? E E E R.11E 070707 080808 090909 101010 111111 R.10E 090909

111111 121212

E E E 111111 121212

SSS E E E 111111 121212

SSS E E E SSS 070707 080808 090909 101010 111111 P PP 090909 101010 111111 121212 PPP 090909 101010 111111 121212 090909 101010 111111 121212

PPP K K K

070707 K K K 080808 121212 E EE 070707 K K K 080808 121212 090909 101010 111111 121212 070707 080808 090909 EEE 101010 111111 121212 111111 101010 111111 070707 080808 090909 101010 111111 121212 070707 N N 070707 080808 090909 101010 101010 111111 121212 070707 080808 C C 070707 080808 090909 101010 121212 CC E EE VVV 131313 VVV I II LLL LLL 161616 151515 161616 151515 LLL F F F 131313 181818 171717 FFF 80 151515 141414 131313 181818 171717 141414 131313 EEE 151515 141414 141414 131313 EEE R.11E R.12E 181818 171717 161616 --- AAA 181818 171717 161616 --- AAA 171717 151515 141414 141414 DD 171717 151515 141414 141414 DD U U U 151515 141414 131313 181818 14 161616 151515 141414 131313 181818 161616 EEE UUU 171717 161616 151515 141414 131313 181818 161616 131313 151515 161616 151515 141414 131313 181818 161616 151515 AAA 141414 131313 181818 LL L 151515 141414 131313 181818 171717 AAA LLL 141414 131313 181818 171717 161616 151515 141414 131313 181818 171717 181818 171717 161616 141414 131313 181818 171717 161616 DD T T T 181818 171717 161616 151515 DD TTT 151515 MM AAA AAA NN 49 242424

FFF 191919 191919 202020 212121 222222 232323 R.13E R.14E A AA $$ 191919 222222 232323 242424 191919 202020 232323 CiscoCisco SodaSoda AAA $$ 222222 232323 242424 BlueBlue CiscoCisco SodaSoda U U 202020 212121 BlueBlue NordenNorden TruckeeTruckee MartisMartis UU NordenNorden TruckeeTruckee MartisMartis LLL ZZZ LLL ZZZ WashingtonWashington TTT ZZZ 232323 242424 191919 202020 212121 222222 242424 WashingtonWashington GroveGrove SpringsSprings T TT 202020 212121 222222 202020 CanyonCanyon TTT 202020 212121 222222 202020 CanyonCanyon 202020 212121 222222 202020 CanyonCanyon OOO 212121 222222 232323 242424 191919 OOO 232323 222222 PeakPeak 212121 222222 232323 242424 191919 OOO 232323 222222 PeakPeak 242424 191919 202020 ZZZ 191919 212121 PeakPeak 242424 191919 202020 212121 222222 232323 ZZZ 242424 191919 202020 212121 222222 232323 242424 191919 202020 212121 222222 232323 NNN 222222 232323 OO NNN 222222 232323 NNN 222222 232323 OO

N N 191919 191919 NN E E E 191919 191919 EEE 777 EEE 5,5,5, 9,9,9, 212121 7,7,7, 999 777 EEE 3,3,3, 292929 5,5,5, 9,9,9, 212121 7,7,7, 999 777 303030 272727 262626 LakeLake ClementineClementine 303030 282828 272727 292929 282828 272727 262626 282828 272727 262626 252525 303030 292929 282828 272727 303030 R.09E R.10E 262626 252525 303030 292929 282828 272727 262626 292929 282828 272727 262626 252525 292929 282828 272727 262626 303030 292929 282828 272727 262626 252525 303030 292929 282828 272727 262626 252525 303030 292929 282828 262626 ddd 272727 262626 252525 303030 292929 282828 272727 262626 252525 RockRock CreekCreek LakeLake aaa RockRock CreekCreek LakeLake ooo RR RR 353535 DuncanDuncan RoyalRoyal GraniteGranite KingsKings ll l ll l 353535 343434 ChicagoChicago ii i lll MiddleMiddle ForkFork AmericanAmerican RiverRiver WestvilleWestville TahoeTahoe CityCity hhh 353535 333333 DutchDutch FlatFlat WestvilleWestville ttt hhh 353535 363636 313131 323232 333333 ParkPark DutchDutch FlatFlat PeakPeak GorgeGorge ChiefChief BeachBeach ?? sss 343434 363636 313131 323232 ParkPark 363636 313131 eee 353535 363636 313131 323232 rrr 333333 333333 343434 353535 323232 ooo 333333 191919 323232 333333 343434 353535 363636 313131 323232 FFF T.13N 777 777 777 191919 191919 343434 353535 363636 313131 323232 333333 343434 353535 363636 T.13N 3,3,3, 252525 3,3,3, 5,5,5, 292929 555 777 777 777 343434 353535 363636 313131 323232 333333 343434 353535 363636 313131 T.13N 3,3,3, 252525 3,3,3, 5,5,5, 292929 T.12N T.12N R.05E T.12N 010101 050505 T.13N 060606 050505 65 060606 T.12N 040404 030303 020202 010101 RubiconRubicon RiverRiver MeeksMeeks 060606 050505 040404 030303 020202 MeeksMeeks $$ 040404 030303 020202 010101 060606 050505 WentworthWentworth $$ 020202 010101 060606 050505 GreekGreek 020202 060606 050505 040404 030303 020202 010101 060606 050505 MichiganMichigan GreekGreek HomewoodHomewood BayBay 060606 050505 040404 030303 020202 010101 060606 050505 040404 030303 CampCamp LakeLake ForesthillForesthill BunkerBunker HillHill SpringsSprings BayBay R.12E R.13E WheatlandWheatland WolfWolf ColfaxColfax ForesthillForesthill StoreStore SpringsSprings WheatlandWheatland FarFar WestWest CombieCombie BluffBluff R.08E R.09E 191919 191919 5,5,5, 12,12,12, 181818 181818 7,7,7, 18,18,18, 222222 7,7,7, 222222 191919 20,2320,2320,23 232323 23,23,23, 252525 2,2,2, 252525 2,2,2, 555 5,5,5, 12,12,12, 181818 111111 202020 20,2320,2320,23 232323 070707 080808 090909 101010 111111 121212 070707 080808 090909 101010 111111 121212 070707 080808 090909 101010 111111 121212 070707 080808 090909 080808 090909 101010 111111 121212 070707 080808 090909 101010 111111 AuburnAuburn 070707 $$49 TunnelTunnel RobbsRobbs 171717 161616 151515 141414 GeorgetownGeorgetown DevilDevil PeakPeak 141414 131313 181818 171717 161616 151515 LincolnLincoln GoldGold HillHill AuburnAuburn GreenwoodGreenwood GeorgetownGeorgetown DevilDevil PeakPeak PeakPeak 181818 171717 161616 151515 141414 131313 181818 SheridanSheridan LincolnLincoln GoldGold HillHill AuburnAuburn GreenwoodGreenwood HillHill PeakPeak 161616 151515 141414 181818 171717 161616 151515 141414 131313 HillHill 181818 171717 161616 151515 141414 131313 181818 171717 181818 171717 131313 193 6,6,6, 151515 11,11,11, 13,13,13, 272727 161616 6,6,6, 161616 6,6,6, 151515 LincolnLincoln $$ NorthNorth ForkFork AmericanAmerican RiverRiver 38° 52' 30" 888 888 10,10,10, 24,24,24, 26,26,26, 282828 4a,4a,4a, 4b,4b,4b, 10,10,10, 24,24,24, 26,26,26, 282828 1,1,1, 4b,4b,4b, 11,11,11, 13,13,13, 272727 11,11,11, 13,13,13, 272727 161616 LincolnLincoln $$ NorthNorth ForkFork AmericanAmerican RiverRiver 888 888 $$ 888 120° 22' 34" 242424 232323 120° 30' 04" 242424 242424 120° 37' 34" 202020 212121 222222 232323 242424 120° 45' 04" 191919 202020 212121 222222 232323 242424 191919 38° 52' 30" 191919 202020 212121 222222 232323 191919 202020 212121 120° 52' 34" 191919 202020 212121 222222 232323 191919 202020 212121 222222 PleasantPleasant RELATIVE LIKELIHOOD FOR THE PRESENCE OF NATURALLY OCCURRING ASBESTOS Areas Moderately Likely to Contain NOA: USE AND LIMITATIONS OF MAP RosevilleRoseville RocklinRocklin PilotPilot HillHill GroveGrove 272727 262626 IN PLACER COUNTY 252525 303030 292929 282828 272727 262626 252525 303030 292929 282828 272727 262626 These areas contain one or more of the following rock types: metamorphosed mafic volcanic 252525 303030 292929 282828 272727 262626 252525 303030 292929 Chrysotile and tremolite/actinolite asbestos are known to occur in Placer County. 303030 292929 282828 272727 262626 252525 303030 292929 282828 272727 262626 10,10,10, 171717 10,17,10,17,10,17, 26,26,26, 282828 303030 292929 282828 272727 262626 Natural occurrences of chrysotile asbestos and amphibole asbestos are known to be present rocks, metamorphosed mafic intrusive rocks, non-metamorphosed mafic intrusive rocks, and Other varieties of NOA may also be present within the county. 888 888 10,10,10, 171717 10,17,10,17,10,17, 26,26,26, 282828 in some parts of Placer County. On this map, the County is divided into areas according to the several structurally complex assemblages in which metamorphic rocks of different origins are 80 14 353535 relative likelihood for the presence of naturally occurring asbestos (NOA) in different geologic mixed together. Geologic units in Placer County comprised partly or entirely of one or more of The purpose of this map is to provide information to local, state and federal 313131 323232 333333 343434 343434 353535 363636 313131 323232 333333 343434 313131 323232 333333 343434 353535 363636 313131 323232 333333 units. The presence of faulting or shearing may locally increase the likelihood for the presence these rock types include the Smartville Complex, Lake Combie Complex, Logtown Ridge agencies, and the public as to areas where naturally occurring asbestos is most 313131 323232 333333 343434 353535 363636 313131 323232 333333 343434 353535 363636 T.12N 313131 323232 333333 343434 353535 363636 of NOA in some geologic units. The presence of NOA is possible within all of these areas, but Formation, Calaveras Complex, Emigrant Gap Complex, Tuttle Lake Formation, Reeve CitrusCitrus likely to be found in Placer County. This information includes locations of major RioRio LindaLinda FolsomFolsom T.12N 65 T.11N it is more likely to be present in some areas than others. Formation, and Taylor Formation. The structurally complex assemblages are broadly referred HeightsHeights 030303 mapped faults and fault zones, as well as certain rock and soil types with $$ to as "structurally mixed or disrupted rocks." T.11N potential for containing naturally occurring asbestos. 888 888 141414 020202 010101 060606 050505 040404 888 888 141414 060606 050505 040404 030303 020202 010101 050505 040404 030303 020202 010101 060606 050505 040404 030303 This map is based on compilation and interpretation of geologic and soil data from various 060606 050505 040404 030303 020202 010101 060606 060606 published and unpublished sources available at the time of the study. Users are encouraged to The rocks in these areas generally have a lower relative likelihood for the presence of NOA This map is based on a compilation of geologic data and soil data from various read the accompanying report for further details about this map. than those in the areas described as most likely to contain NOA. Nonetheless, NOA is known published and unpublished sources available at the time of the study. These to be present in these rock types either in Placer County or in similar rocks in nearby counties. 070707 080808 090909 sources are identified on the map and in the accompanying report. This map is 111111 121212 070707 080808 090909 090909 101010 111111 121212 070707 080808 090909 101010 Based on existing information, determination of the presence or absence of NOA at specific The most likely settings for NOA in these rocks are in fault zones and shear zones that contain 101010 111111 121212 070707 080808 090909 101010 111111 121212 070707 also based on limited geologic fieldwork by staff of the California Department of 070707 080808 090909 101010 111111 121212 070707 080808 sites on this map is not possible. Determination of whether NOA is present or absent at a slivers of serpentinite and/or high concentrations of the minerals talc and chlorite. Both chrysotile Conservation, California Geological Survey. RocklinRocklin specific site will require a detailed geologic investigation of that site. asbestos and amphibole asbestos are known to occur in such environments.

LoomisLoomis 181818 The scale of this map is 1:100,000 (one inch = 1.6 miles). This map is intended 141414 131313 181818 171717 151515 141414 131313 181818 171717 161616 151515 141414 131313 181818 171717 161616 151515 141414 131313 181818 171717 for use in conjunction with the companion report. The report provides detailed 181818 171717 161616 151515 141414 131313 181818 171717 161616 Areas of Relative Likelihood for the Presence of NOA Areas Least Likely to Contain NOA: information on the underlying geologic assumptions for the map, map compilation These areas contain one or more of the following rock types: metamorphosed sedimentary rocks, Areas Most Likely to Contain NOA: These areas include ultramafic rock and procedures, map accuracy, and guidance on map usage and limitations. metamorphosed non-mafic volcanic rocks, granitic rocks, volcanic rocks, alluvium, and glacial INDEX TO U.S. GEOLOGICAL SURVEY 7.5-MINUTE QUADRANGLES AND TO GEOLOGIC AND SOILS MAPPING USED FOR COMPILATION OF THIS MAP 222222 232323 242424 191919 202020 serpentinite (serpentine rock), and associated soils, which are most likely to 232323 242424 191919 202020 212121 222222 232323 deposits. Geologic units in Placer County comprised partly or entirely of one or more of the 191919 202020 212121 222222 232323 242424 191919 202020 212121 191919 202020 212121 222222 232323 242424 contain NOA. metamorphic rock types include the Colfax sequence (Fiddle Creek Complex), Calaveras 1. Aune, Q.A., 1965, Geologic reconnaissance of the Greenwood 15-minute 16. McJunkin, R.D. and Taylor, G.C., 1979b, Geologic reconnaissance of the REGIONAL GEOLOGIC AND SOILS MAPS USED Complex, Shoo Fly Complex, Sailor Canyon Formation, Sierra Buttes Formation, Peale Formation, quadrangle: California Department of Conservation, Division of Mines and Areas moderately likely to contain NOA Areas Moderately Likely to Contain NOA: These areas include those Saddle Mountain 15-minute quadrangle: California Division of Mines and (These cover all or large parts of Placer County) 292929 and sequence. The granitic rocks include the Rocklin and Penryn plutons. This map should not be used to determine whether bedrock or soil on a Geology, unpublished field study for State Map Project, scale 1:24,000. Geology, unpublished field study for State Map Project, scale 1:62,500. 303030 252525 303030 292929 282828 272727 262626 252525 metamorphic and igneous rocks that are moderately likely to contain NOA. 292929 282828 272727 262626 252525 303030 292929 282828 272727 Clark, L.D., 1976, Stratigraphy of the north half of the western 303030 292929 282828 272727 262626 252525 303030 292929 282828 272727 262626 particular parcel of land contains naturally occurring asbestos. A detailed 2. Chandra, D.K., 1961, Geology and mineral deposits of the Colfax and 17. Olmsted, F.H., 1971, Pre-Cenozoic geology of the south half of the The technical documents reviewed during compilation of this map did not indicate the presence site-specific investigation is required to make such a determination. Foresthill quadrangles, California: California Division of Mines Special Auburn 15-minute Quadrangle, California: U.S. Geological Survey Bulletin metamorphic belt, California: U.S. Geological Survey Professional Paper 923, of NOA in any of these rock types within Placer County. The mineral actinolite has been reported Report 67, 50 p. 1341, 30 p. 26 p. RosevilleRoseville Areas Least Likely to Contain NOA: These areas include those metamorphic, at a few localities in the metamorphosed sedimentary rocks, but whether or not it is asbestos 3. Clark, L.D. and Huber, N.K., 1975, Geologic observations and sections along 18. Redmond, J.L., 1966, Structural analysis of the Blue Canyon Formation Day, H.W. and Bickford, M.E., 2004, Tectonic setting of the Jurassic Smartville 313131 323232 333333 343434 353535 363636 313131 selected stream traverses, northern Sierra Nevada metamorphic belt, California: and Slate Creek complexes, northern Sierra Nevada, California: Geological 333333 343434 353535 363636 313131 323232 333333 343434 igneous, and sedimentary rocks that are least likely to contain NOA. was not reported; in general, non-asbestiform actinolite is much more common than actinolite- in the Sierra Nevada, Placer County, California: Ph.D. dissertation, University 343434 353535 363636 313131 323232 333333 343434 353535 363636 Society of America Bulletin, v. 116, no. 11-12, p. 1515-1528. 313131 323232 333333 T.11N asbestos in the Sierra Nevada. Based on the available information, the relative likelihood for the U.S. Geological Survey Miscellaneous Field Studies Map MF-690, scale 1:62,500. of Oregon, 197 p. T.11N T.10N 38° 45' 00" presence of NOA in these areas is lower than that in areas identified as most likely or moderately 4a. Edwards, J.M., 1978, Tectonic evolution of the western Sierra Nevada 19. Saucedo, G.J., 2005, Geologic map of the Lake Tahoe Basin, California and Graymer, R.W. and Jones, D.L., 1994, Tectonic implications of radiolarian cherts from the Placerville Belt, Sierra Nevada Foothills, California: Nevadan-age 38° 45' 00" 050505 likely to contain NOA. Small bodies of rock or soil with moderate or higher likelihood for the Mountains Foothills belt: A case for continental accretion: Ph.D. dissertation, Nevada: California Geological Survey Regional Geologic Map Series Map No. 4, 010101 060606 050505 040404 030303 020202 010101 060606 050505 040404 030303 020202 010101 060606 Areas of Faulting or Shearing: These areas are zones of faulted or sheared Rice University, 125 p. continental growth by accretion of multiple terranes: Geological Society of T.10N 060606 050505 040404 030303 020202 010101 060606 050505 040404 050505 040404 030303 020202 010101 060606 scale 1:100,000. 060606 050505 040404 030303 020202 presence of NOA may occur within some of these areas, but they remain undiscovered or are America Bulletin, v. 106, p. 531-540. ?? rock that may locally increase the relative likelihood for the presence of NOA within or adjacent to areas moderately or most likely to contain NOA. The solid too small to depict on this map. 4b. Graymer, R.W., 1992, Structural evolution of the central part of the Foothills 20. Saucedo, G.J. and Wagner, D.L., 1985, Reconnaissance geologic map of terrane, Sierra Nevada, California: Ph.D. dissertation, University of California, portions of the Wheatland 15-minute quadrangle: California Division of Mines Hanes, R.O. and others, 1982, Soil survey of Tahoe National Forest area, 111111 121212 070707 080808 090909 101010 111111 121212 070707 lines represent mapped traces of fault and shear zones; question marks Berkeley, 173 p. California: U.S. Department of Agriculture, Forest Service, 377 p. 080808 090909 101010 111111 121212 070707 080808 090909 101010 111111 121212 070707 and Geology, unpublished field study for State Map Project, scale 1:62,500. 070707 080808 090909 101010 111111 121212 070707 indicate uncertainty regarding the continued extent of the traces. 5. Harwood, D.S., 1980, Geologic map of the North Fork of the American River Livingston, J.G., 1976, Handbook of environmental geology: Placer County, Areas of Faulting or Shearing: 21. Schweickert, R.A., Harwood, D.S., Girty, G.H., and Hanson, R.E., 1984, R.05E Wilderness Study Area and adjacent parts of the Sierra Nevada, California: U.S. California: Unpublished report prepared for Placer County Planning Department FolsomFolsom LakeLake Geologic map of the Emigrant Gap 15-minute quadrangle: Unpublished, 171717 161616 Geological Survey Map MF-1177-A, scale 1:62,500. (includes 21 1:24,000-scale geologic maps). 171717 161616 151515 Mapped trace of fault or shear zone. These features may locally increase the The western half of Placer County contains many mapped fault and shear zones, some of which scale 1:62,500. 131313 181818 R.05E R.06E 141414 131313 181818 171717 161616 151515 141414 131313 181818 6. Harwood, D.S., 1983, Geologic and geochemical maps of the Rubicon Loyd, R.C., 1995, Mineral Land Classification of Placer County, California: 141414 171717 161616 151515 141414 131313 181818 likelihood for the presence of NOA within areas least likely to contain NOA. The contain NOA, or are potentially favorable environments for its presence. These are linear belts 22. Southern Pacific Company, 1959, Regional geologic mapping program: Roadless Area, Placer and El Dorado Counties, California: U.S. Geological California Department of Conservation, Division of Mines and Geology presence of NOA along these features is more likely within areas mapped as of highly fractured and deformed rocks, highlighted by stippling on the map where they overlap Unpublished maps of T14N, R14-16E, MDB&M, scale 1:24,000. R.06E R.07E Survey Map MF-1501-A, scale 1:24,000. Open-File Report 95-10, 65 p. 242424 191919 most likely or moderately likely to contain NOA as described above. areas most likely or moderately likely to contain NOA. These areas may have an increased 242424 191919 23. Springer, R.K., 1981, A geologic report on the Bear River area, northeast 7. Harwood, D.S. and Fisher, G.R. Jr., 2002, Geologic map of part of eastern Rogers, J.H., 1980, Soil survey of Placer County, California: Western Part: likelihood for the presence of NOA beyond that of the underlying area. of Auburn, California: California Division of Mines and Geology, unpublished Placer County, California: U.S. Geological Survey (in preparation), scale 1:48,000. U.S. Department of Agriculture, Soil Conservation Service, 204 p. R.07E R.08E field study for State Map Project, scale 1:24,000. EXPLANATION OF THE AREAS OF RELATIVE LIKELIHOOD FOR THE PRESENCE OF NOA 8. Helley, E.J. and Harwood, D.S., 1985, Geologic map of the Late Cenozoic Saucedo, G.J. and Wagner, D.L., 1992, Geologic map of the Chico The stippling on the map is intended to draw attention to these areas as localities with increased 24. Taylor, G.C., 1979, Geologic reconnaissance of the north half of the deposits of the Sacramento Valley and northern Sierran foothills, California: U.S. Quadrangle, California: California Department of Conservation, Division likelihood for the presence of NOA above that of unfaulted or unsheared areas. For example, an Auburn 15-minute quadrangle: California Division of Mines and Geology, Geological Survey Miscellaneous Field Studies Map MF-1790, scale 1:62,500. of Mines and Geology Regional Geologic Map Series, Map No. 7A, This section provides more information on the characteristics of each of the NOA areas shown unpublished report and map for State Map Project, scale 1:24,000. area of faulting or shearing shown within an area mapped as moderately likely to contain NOA scale 1:250,000. on the map of Placer County. Additional details are presented in the report that accompanies 9. James, O.B., 1971, Origin and emplacement of the ultramafic rocks of the would be expected to have a higher relative likelihood for the presence of NOA than that of the 25. Tuminas, A., 1983, Structural and stratigraphic relations in the Grass this map. Emigrant Gap area, California: Journal of Petrology, v. 12, no. 3, p. 523-560. U.S. Forest Service, 2005, Digital geologic map of the Tahoe National Forest. 38° 41' 15" moderately-likely area by itself. The widths of the stippled areas shown on the map are not Valley-Colfax area of the northern Sierra Nevada, California: Ph.D. 38° 41' 15" 121° 00' 04" 10. Kohler, S.L., 1983, Mineral Land Classification of the Auburn 15-minute dissertation, University of California, Davis, 415 p. 121° 15' 04" 121° 07' 34" intended to precisely depict the actual width of a fault or shear zone at any particular location. Wagner, D.L., Jennings, C.W., Bedrossian, T.L., and Bortugno, E.J., 121° 30' 04" 121° 22' 34" Areas Most Likely to Contain NOA: Quadrangle, El Dorado and Placer Counties, California: California Department 1981, Geologic map of the Sacramento Quadrangle, California: 26. U.S. Bureau of Reclamation, 1977, Project geology report, Auburn Fault zones in the Sierra Nevada Foothills are seldom less than two hundred feet wide and may of Conservation, Division of Mines and Geology Open-File Report 83-37, 48 p. California Department of Conservation, Division of Mines and Geology Dam, Seismic evaluation of Auburn damsite: Volume 1, 44 p. These areas contain ultramafic rock and serpentinite, and their associated soils. Serpentinite be several thousand feet wide or more. The width of a fault zone commonly varies along its Regional Geologic Map Series, Map No. 1A, scale 1:250,000. and partially serpentinized ultramafic rock commonly contain chrysotile asbestos. These rocks 11. Kohler, S.L., 1984, Mineral Land Classification of the Georgetown 15-minute length. Detailed information on the width of fault zones is largely unavailable for western Quadrangle, El Dorado and Placer Counties, California: California Department of 27. Wagner, D.L., 1979, Geologic reconnaissance of the Georgetown may also host amphibole asbestos, typically the following varieties: tremolite, actinolite, or Placer County. Conservation, Division of Mines and Geology Open-File Report 83-35, 78 p. 7-1/2-minute quadrangle: California Division of Mines and Geology, DISCLAIMER FRAMEWORK DATA anthophyllite. Soils derived from ultramafic rock and serpentinite may contain NOA. These unpublished field study for State Map Project, scale 1:62,500. 12. Lindgren, W., 1900, Colfax Folio, California: U.S. Geological Survey Geologic soils are commonly designated as "ultramafic soils" or "serpentine soils" on soil maps. Soil 28. Woodward-Clyde Consultants, 1977, Earthquake evaluation The State of California and the California Department of Conservation, California Base map data for hydrography and roads were provided by Placer County Planning Atlas of the , Folio 66, scale 1:125,000. Copyright © 2006 by the California Department of Conservation, maps of Placer County by the U.S. Department of Agriculture's Natural Resources NOA in Other Geologic Environments studies of the Auburn Dam area: Surface faulting potential: Prepared Geological Survey make no representations or warranties as to the actual presence Department; Public Land Survey (PLSS) by California Department of Conservation, under Contract No. 6/07/DS/72090 for the U.S. Bureau of Reclamation, California Geological Survey. All rights reserved. No part of this Conservation Service and the U.S. Forest Service include the following ultramafic- and 13. Lindgren, W. and Turner, H.W., 1894, Placerville Folio, California: U.S. or absence of natural asbestos at specific sites. Further, the State and the Division of Oil, Gas, and Geothermal Resources; and political boundaries by California Geological Survey Geologic Atlas of the United States, Folio 3, scale 1:125,000. Vol. 2, Appendixes A and B. publication may be reproduced without written consent of the serpentinite-related soils series: Dubakella, Henneke, and Forbes. NOA can be associated with many different rock types in a variety of geologic environments. Department make no representations or warranties regarding the accuracy of the Department of Forestry and Fire Protection. The geologic environments for NOA discussed on this map are those known or strongly 14. Loyd, R.C., 1984, Mineral Land Classification of the Folsom 15-minute 29. Yeend, W.E., 1974, Gold bearing gravel of the ancestral Yuba California Geological Survey. River, Sierra Nevada, California: U.S. Geological Survey Professional data from which these maps were derived. Neither the State nor the Department The California Geological Survey did not evaluate deposits of unconsolidated sediment along suspected to contain NOA in Placer County. The research for this mapping project did not Quadrangle, Sacramento, El Dorado, Placer and Amador Counties, California: The California Department of Conservation makes no warranties California Department of Conservation, Division of Mines and Geology Open-File Paper 772, 44 p. shall be liable under any circumstances for any direct, indirect, special, incidental reveal occurrences of NOA in other geologic settings in the county. However, the CC GG SS as to the suitability of this product for any particular purpose. rivers and creeks below areas of ultramafic rock and serpentinite for their likelihood to contain Report 84-50, 44 p. or consequential damages with respect to any claim by any user or any third party NOA. Such deposits may contain NOA, but no studies of NOA in such sediment in Placer possibility that additional occurrences will be discovered in the future cannot be ruled out. 15. McJunkin, R.D. and Taylor, G.C., 1979a, Geologic reconnaissance of the on account of or arising from the use of this map. County were identified during research for this mapping project. Many of these deposits are These less-common possibilities for the presence of NOA are discussed in the Cartographic design and GIS development by Milton Fonseca California Geological Survey Web Site: http://www.consrv.ca.gov/cgs/ Robbs Peak 15-minute quadrangle: California Division of Mines and Geology, too small to depict on this map. accompanying report. unpublished field study for State Map Project, scale 1:62,500.