West Mojave Plan FEIR/S - Desert Managers Group

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Federal Ozone Planning AreasN190I n y o C o .395178K e r n C o .S a n B e r n a r d i n o C o .1439515581440156613818L o s A n g e l e s C o .24762LegendCounty LinesPlan BoundaryEastern Kern AQMASouthwestern Desert Modified AQMAR i v e r s i d e C o .7/29/04West Mojave Plan FEISMap 3-5Scale: 1 : 1,750,0000 10 20 30Km0 10 20 30Miles
POLLUTANTOzone (O 3 )RespirableParticulateMatter(PM 10 )FineParticulateMatter(PM 2.5 )CarbonMonoxide(CO)NitrogenDioxide(NO 2 )LeadSulfurDioxide(SO 2 )VisibilityReducingParticulatesTable 3-7Ambient Air Quality StandardsAVERAGING CALIFORNIA STANDARDSFEDERAL STANDARDSTIMEPrimarySecondary1 hour 0.09 ppm (180 µg/m 3 ) 0.12 ppm (235 µg/m 3 ) Same as Primary Standard8 hourAnnual geometric____Mean 20 µg/m 3 Same as Primary StandardAnnual Arithmetic____ 50 µg/m 324 hour 50 µg/m 3 150 µg/m 3Mean24 hour 65 µg/m 3Annual ArithmeticSame as Primary StandardMean 12 µg/m 3 15 µg/m 38 hour1 hour8 hour(Lake Tahoe)Annual Arithmetic____ 0.053 ppm (12 µg/m 3 )Mean1 hour 0.25 ppm (470 µg/m 3 )Chapter 3 3-51NoneSame as Primary Standard30 day average 1.5 µg/m 3Calendar quarter 1.5 µg/m 3 Same as Primary StandardAnnual Arithmetic0.030 ppm (80 µg/m 3 )Mean24 hour 0.04 ppm (105 µg/m 3 ) 0.14 ppm (365 µg/m 3 )3 hour 0.5 ppm (1300 µg/m 3 )1 hour 0.25 ppm (655 µg/m 3 )8 hourIn sufficient amount to produce an(10 am toextinction coefficient of 0.23 per6 pm, PST) kilometer ___ visibility of ten miles orNomore (0.07_30 miles or more for LakeTahoe) due to particles when the relativeFederalhumidity is less than 70 percent.Method: ARB method V (8/18/89)Standards1 hour 0.03 ppm (42 µg/m 3 )Sulfates 24 hour 25 µg/m 3HydrogenSulfideAreas that are classified as nonattainment by the USEPA are required to prepare andimplement a State Implementation Plan (SIP) that identifies and quantifies sources of emissionsand presents a comprehensive strategy to control and reduce locally generated emissions.Air quality quality degradation and exceedances of the ambient air quality standards havebeen episodal in nature. High PM 10 concentrations that violated the National Ambient AirQuality Standards peaked in the early 1990s. In recent years, good monitoring data has led toreclassification requests to the USEPA for most of the region. Implementation of dust controlrules and controls on a number of critical sources have led to the reductions in PM 10concentrations. The numbers of violations of the NAAQS for ozone has declined, but violationshave continued. Rules establishing controles for Ozone precursor enissions have beenimplemented, but overwhelming transport of pollutants from the South Coast Air Basin and theSan Joaquin Valley Air Basin continually impacts the desert. Both the South Coast and the SanJoaquin Valley are both classified as serious nonattainment areas (see Table 3-8). The SouthernCalifornia Association of Governments (SCAG) has projected population growth and future
Page 1 and 2: CHAPTER THREEAFFECTED ENVIRONMENT3.
Page 3 and 4: The CDCA Plan assigns a “multiple
Page 5 and 6: Desert Tortoise Research Natural Ar
Page 7 and 8: closure to target shooting. Hunting
Page 9 and 10: percentage of public land ownership
Page 11 and 12: As of March 2004, BLM had acquired
Page 13 and 14: Ripley Joshua Tree Woodland: The st
Page 15 and 16: through “resource use” designat
Page 17 and 18: Significant Ecological Areas: There
Page 19 and 20: Wildlife and Wildflower Sanctuaries
Page 21 and 22: Mojave River Forks Regional Park: A
Page 23 and 24: oriented commercial uses are expect
Page 25 and 26: HCP would include mitigation measur
Page 27 and 28: 3.1.3.12 City of RidgecrestThe City
Page 29 and 30: It is a goal of the town’s genera
Page 31 and 32: • Inyo California Towhee (April 1
Page 33 and 34: (i) The taking will be incidental;(
Page 35 and 36: handled, and number accidentally ki
Page 37 and 38: 3.1.5 California Endangered Species
Page 39 and 40: Obtaining an Incidental Take Permit
Page 41 and 42: Monitoring: Monitoring is often the
Page 43 and 44: is so restrictive that project dela
Page 45 and 46: excess moisture. A minus 4 is consi
Page 47 and 48: Air BasinsN190I n y o C o395Ridgecr
Page 49: Federal PM10 Planning AreasN190Owen
Page 53 and 54: AIRBASINAIR QUALITYDISTRICTPOLLUTAN
Page 55 and 56: subtraction of transported ozone in
Page 57 and 58: The general soil information and ma
Page 59 and 60: The Marine Corps Ground Combat Cent
Page 61 and 62: The most permeable basin-fill depos
Page 63 and 64: Surface water was and is the major
Page 65 and 66: A relatively small number of introd
Page 67 and 68: freshwater or alkali wetlands, or o
Page 69 and 70: 3.3.2 Desert Tortoise3.3.2.1 Regula
Page 71 and 72: progress toward meeting the overall
Page 73 and 74: “higher density” and “lower d
Page 75 and 76: several seasons (Esque 1994 in Aver
Page 77 and 78: Assistant District Manager Molly Br
Page 79 and 80: • Since 1975, federal land manage
Page 81 and 82: “52 mi 2 of higher density tortoi
Page 83 and 84: 1984 Tortoise Range and Density Map
Page 85 and 86: Higher Density Tortoise Sign Count
Page 87 and 88: When data for the three lowest sign
Page 89 and 90: Occurrence of Tortoises Relative to
Page 91 and 92: Regional Declines in the Four DWMAs
Page 93 and 94: Tortoise Distribution within the Re
Page 95 and 96: Boarman (pers. comm., Nov 2002) has
Page 97 and 98: tortoises are either extirpated (La
Page 99 and 100: sites surveyed by LaRue between 199
Page 101 and 102:
aseline data are lacking. Grasses p
Page 103 and 104:
Canine Predators: This includes coy
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The spatial distribution of 12 of 1
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Predation Versus Scavenging of Juve
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Table 3-20Prevalence of Tortoises i
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(Jacobson et al. 1991, Brown et al.
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3.3.2.5.3 Older and Newer Die-off R
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Table 3-21Characteristics of Older
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Table 3-22Characteristics of Older
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of the Johnson Valley Open Area, an
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Distribution of Recreational and Re
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Tortoises and Burrows Crushed: Vehi
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TypeYearsSignCount98-99-01Distance2
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OHV Impacts to Soils: OHV use has r
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Rodman DWMA. There were no higher d
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of Dove Springs that has experience
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Both inside and adjacent to open ar
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3.3.2.6.6 Organized Competitive OHV
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3.3.2.7 Current Effectiveness of Ex
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Overall, one sees that 68% of the 3
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off regions discussed herein. Black
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ManixACECMojave fishhookcactusRainb
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Range of Mohave Ground SquirrelN190
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3.3.3.2.2 Seasonal ActivityThe MGS
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1996). As herbaceous annuals appear
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1998 Mohave Ground Squirrel Transec
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Finally, the 84% success rate was a
Page 155 and 156:
LaRue characterized substrates at t
Page 157 and 158:
There were no MGS occurrences in 28
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certain shrubs (e.g. winterfat) tha
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NAWS China Lake 1993). As discussed
Page 163 and 164:
Cumulatively, one finds there to be
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Citing Bury and Luckenbach (1977),
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the MGS is restricted to about 7,00
Page 169 and 170:
Habitat Management Plans (HMPs) wer
Page 171 and 172:
Basic to the biology of bighorn she
Page 173 and 174:
3.3.6 Birds3.3.6.1 Bendire’s Thra
Page 175 and 176:
3.3.6.5 Golden EagleLife History: T
Page 177 and 178:
The towhee recovery plan establishe
Page 179 and 180:
Regulatory Status: Federal Endanger
Page 181 and 182:
3.3.6.15 Western Yellow-billed Cuck
Page 183 and 184:
Other major threats are flood contr
Page 185 and 186:
Population Status in the Planning A
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on the inaccessible mountain slopes
Page 189 and 190:
3.3.8.8 Kern BuckwheatLife History:
Page 191 and 192:
Threats Affecting the Mojave Monkey
Page 193 and 194:
3.3.8.16 Red Rock PoppyLife History
Page 195 and 196:
populations show intergradation wit
Page 197 and 198:
3.4.1.1 Regional EnvironmentIn tota
Page 199 and 200:
Table 3-37Average Annual Units Cons
Page 201 and 202:
2002 SOUTHERN CALIFORNIAEMPLOYMENT
Page 203 and 204:
TABLE 3-382000 CENSUS DEMOGRAPHIC C
Page 205 and 206:
to undergo a dramatic reversal to t
Page 207 and 208:
3.4.1.5 Study Area Property Valuati
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The supply of private property in t
Page 211 and 212:
ALLOTMENT NAME TYPE OF LIVESTOCK FO
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Grazing AllotmentsNOlanchaDarwinTun
Page 215 and 216:
ALLOTMENT NAMEALLOTMENTACRESP. L. 1
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3.4.3 Mineral Potential and Develop
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Mineral Potential, Active and Inact
Page 221 and 222:
Mineral Potential, Active and Inact
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development based on the results of
Page 225 and 226:
MANAGEMENT AREATable 3-46Potential
Page 227 and 228:
A third item, yttrium (on the USBM
Page 229 and 230:
the California Department of Conser
Page 231 and 232:
Table 3-49 shows the number of mini
Page 233 and 234:
produces about 75,000 tons per year
Page 235 and 236:
Table 3-50Most Important Deposits B
Page 237 and 238:
3.4.3.5 Coolgardie MesaThe Coolgard
Page 239 and 240:
Areas designated as regionally sign
Page 241 and 242:
Recreationists engage in activities
Page 243 and 244:
OPENAREADoveSpringsElMirageJawboneC
Page 245 and 246:
cycle engine motorcycles in OHV rid
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One popular activity is dual sport
Page 249 and 250:
Compliance With Regulations: Compli
Page 251 and 252:
REGIONORCITYRidgecrestSanBernardino
Page 253 and 254:
REGIONORCITYVictorville /AppleValle
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Rail: The West Mojave planning area
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Arterials: Arterials are routes wit
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Ridgecrest-Inyokern Sanitary Landfi
Page 261 and 262:
approximately 3 miles south of the
Page 263 and 264:
Trona-Agrus Transfer Station (SWIS
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The BLM is an agency of the U.S. De
Page 267 and 268:
Route designations apply only to ro
Page 269 and 270:
Utility Maintenance: Many powerline
Page 271 and 272:
ACECNAME ANDNUMBERHarper Dry Lake(3
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SUBREGIONAmboyBighornCoyoteEastSier
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• All pipelines with diameters gr
Page 277 and 278:
3.6.2 Energy Generation PlantsEnerg
Page 279 and 280:
3.7 CULTURAL RESOURCES3.7.1 Archaeo
Page 281 and 282:
seasonal movement from place to pla
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RIDGECREST FIELD OFFICEPROPERTY NAM
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ACECRose SpringFossil FallsLast Cha
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have been dated by radiocarbon and
Page 289 and 290:
MYACENOZOICEPOCHTable 3-65Paleontol
Page 291 and 292:
In the southern area, fossils of la
Page 293 and 294:
At Twenty-Nine Palms, there is an u
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West Mojave Plan FEIR/S - Desert Managers Group

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