West Mojave Plan FEIR/S - Desert Managers Group

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geothermal fields in the Western United States. There are four production wells on BLMmanagedland in addition to 10 production wells and two water injection wells on Navyadministered land, three 25 MW power-plants under construction or completed, with four powerplantsplanned for the near future. Presently there are two producing leases covering 5,100 acres,and an additional lease of 2,555 acres is considered “held in production” on BLM-managed land.Since December 1988, the Minerals Management Service has collected approximately $50million in royalty, with 50 percent going to the state.Roughly 30,000 tons per year of pumice are produced from the Coso Mountains in InyoCounty.Aggregates: Sand and gravel and other aggregates are produced at a number of locationswithin the planning area from alluvial fans and other sedimentary deposits. Commercialdeposits, however, are limited by transportation costs and, therefore, are usually located nearmarket areas. These commodities are used primarily for ongoing major highway constructionand repair and as aggregate for concrete in urban areas.Service Rock Products (previously Owl) has produced sand and gravel from the Barstowpit on private land since the 1960s. The Crystal Creek drainage in Lucerne Valley has beenmined for sand and gravel as early as the 1950s. The current operator is Hi-Grade Materials.The aggregate resources in this area have an average thickness of 225 feet based on mining inthis area (Miller, 1993, p.39). Production in the Little Rock Creek deposit (near Palmdale andLancaster) began in 1941 (Joseph et al., 1987, p.10) with several operators in production by the1950s (Evans, et al, 1979, p.17). The pit in Twentynine Palms off of Mojave Road has beenoperating since the early 1950s by Hi-Desert Concrete Products, now owned by GraniteConstruction. Channel Basin & Reclamation is opening the Cushenbury pit in Lucerne Valleywith a production capacity of a million tons per year (Heter, 2002). The Opah Ditch site, in theSoda Mountains southwest of Baker, has been used in the past and will undoubtedly furnishaggregate for paving jobs along Interstate 15 in San Bernardino County. About 10,000 tons peryear of sand and gravel are produced from BLM lands in Inyo and Kern County. Crushed stonesales in the Barstow area for roofing and landscaping rock are estimated to range from 40,000 to50,000 tons per year. Flagstone production from public land in Rand Mountain is estimated ataround 15,000 tons per year.A summary of the most important deposits in the planning area, listed by county, ispresented in Table 3-50.Chapter 3 3-234
Table 3-50Most Important Deposits By CountyRanked In Order Of Relative ContributionCOUNTY COMMODITY ESTIMATEDANNUALPRODUCTION/RESOURCES*San Bernardino Borates 1Sodium Minerals 2Portland Cement 3(mostly limestone)(Victor Valley & Oro Grande)Sand & Gravel 4Sand & Gravel 5Crushed Stone 6Crushed Stone 7Hectorite clayKern Borates 8Gold 9Portland Cement 10(mostly limestone)Flagstone (BLM) 11Inyo Geothermal 12Pumice 13Black Springs Clay 14130,000 tons1,662,000 tons4,500,000 tons________9,800,000 tonsConfidential24,000 tons480,000 tonsConfidential3,300,000 tons80,000 ounces1,200,000 tonsHCAN/A = OUT OF HCAN/AN/AN/A________N/AN/ASup.-Cron, Fre.-KramerN/AN/AN/AN/AN/A15,000 tons Fremont-Kramer DWMA76 megawatts N/A30,000 tons MGS2,500 tons MGSLos Angeles Sand & Gravel 15 13,000,000 tons N/ARiverside Yttrium (undeveloped) 16*330,000 tons Pinto Mtns. DWMAAdditional rare-earth oxides *1.2 million tons: oxides(undeveloped)1 ”Borates” from BLM leases at Searles Lake includes a variety of compounds and products such as borax & boric acid. Production figures fromKathleen Cox, BLM Geologist, Ridgecrest F.O. Production from the Ft. Cady project near Hector site is unknown.2 ”Sodium Minerals” from BLM leases at Searles Lake includes sodium sulfate, soda ash and salt. Production figures from Kathleen Cox, BLMGeologist, Ridgecrest F.O.3 Production figure for Portland cement is a rough estimate based on estimates of the production capacity for the three plants on private land atBlack Mountain, Victorville, and Oro Grande. The Mitsubishi plant is omitted because it is outside of the WEMO planning area.4 Production estimate for private lands in the district including Barstow, Victorville, Oro Grande and Lucerne Valley takes into account importsfrom Lytle Creek; source: Miller, R.B., 1994, Mineral land classification of concrete aggregate resources in the Barstow-Victorville area:California Geology, v. 47, no. 1, p. 8, published by Calif. Div. of Mines and Geology.5 Sand and gravel has been produced since about 1955 from a pit in Twentynine Palms originally owned by Hi-Desert Concrete Products andcurrently owned by Granite Construction.6 This figure is a rough estimate for production of decorative rock from three quarries near Lead Mountain (BLM, northeast of Barstow), Afton(BLM, nearly 40 miles northeast of Barstow), and the Shadow Mountains (patented, northwest of Adelanto).7 Production represents an estimate for the composite of four quarries for decorative stone near Barstow, a quarry off of Hodge road and southeastof I-15, and a larger quarry for railroad ballast in the Newberry Mountains (400,000 tons), all on private land.8 The production rate was converted to short tons from the stated 3,000,000 metric tons of raw ore per day from four zones mined by open pit onpatented land at Boron (Lyday, P.A., 2001, Boron: U.S. Geological Survey, Minerals Yearbook 2001, p. 13.2). The amount of borate compoundsproduced was reported to be 570,000 metric tons, equivalent to 628,000 short tons for the year 2000.9 This gold production figure is a very rough estimate for the Rand mine (BLM land) furnished by Randy Porter, BLM Geologist, Ridgecrest F.O.Chapter 3 3-235
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CHAPTER THREEAFFECTED ENVIRONMENT3.
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The CDCA Plan assigns a “multiple
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Desert Tortoise Research Natural Ar
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closure to target shooting. Hunting
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percentage of public land ownership
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As of March 2004, BLM had acquired
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Ripley Joshua Tree Woodland: The st
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through “resource use” designat
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Significant Ecological Areas: There
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Wildlife and Wildflower Sanctuaries
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Mojave River Forks Regional Park: A
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oriented commercial uses are expect
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HCP would include mitigation measur
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3.1.3.12 City of RidgecrestThe City
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It is a goal of the town’s genera
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• Inyo California Towhee (April 1
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(i) The taking will be incidental;(
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handled, and number accidentally ki
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3.1.5 California Endangered Species
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Obtaining an Incidental Take Permit
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Monitoring: Monitoring is often the
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is so restrictive that project dela
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excess moisture. A minus 4 is consi
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Air BasinsN190I n y o C o395Ridgecr
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Federal PM10 Planning AreasN190Owen
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POLLUTANTOzone (O 3 )RespirablePart
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AIRBASINAIR QUALITYDISTRICTPOLLUTAN
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subtraction of transported ozone in
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The general soil information and ma
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The Marine Corps Ground Combat Cent
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The most permeable basin-fill depos
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Surface water was and is the major
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A relatively small number of introd
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freshwater or alkali wetlands, or o
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3.3.2 Desert Tortoise3.3.2.1 Regula
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progress toward meeting the overall
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“higher density” and “lower d
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several seasons (Esque 1994 in Aver
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Assistant District Manager Molly Br
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• Since 1975, federal land manage
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“52 mi 2 of higher density tortoi
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1984 Tortoise Range and Density Map
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Higher Density Tortoise Sign Count
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When data for the three lowest sign
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Occurrence of Tortoises Relative to
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Regional Declines in the Four DWMAs
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Tortoise Distribution within the Re
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Boarman (pers. comm., Nov 2002) has
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tortoises are either extirpated (La
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sites surveyed by LaRue between 199
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aseline data are lacking. Grasses p
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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
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LaRue characterized substrates at t
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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
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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
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Habitat Management Plans (HMPs) wer
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Basic to the biology of bighorn she
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3.3.6 Birds3.3.6.1 Bendire’s Thra
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3.3.6.5 Golden EagleLife History: T
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The towhee recovery plan establishe
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Regulatory Status: Federal Endanger
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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
Page 187 and 188: 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
Page 209 and 210: The supply of private property in t
Page 211 and 212: ALLOTMENT NAME TYPE OF LIVESTOCK FO
Page 213 and 214: Grazing AllotmentsNOlanchaDarwinTun
Page 215 and 216: ALLOTMENT NAMEALLOTMENTACRESP. L. 1
Page 217 and 218: 3.4.3 Mineral Potential and Develop
Page 219 and 220: Mineral Potential, Active and Inact
Page 221 and 222: Mineral Potential, Active and Inact
Page 223 and 224: 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: produces about 75,000 tons per year
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
Page 247 and 248: 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
Page 255 and 256: Rail: The West Mojave planning area
Page 257 and 258: Arterials: Arterials are routes wit
Page 259 and 260: Ridgecrest-Inyokern Sanitary Landfi
Page 261 and 262: approximately 3 miles south of the
Page 263 and 264: Trona-Agrus Transfer Station (SWIS
Page 265 and 266: 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
Page 273 and 274: SUBREGIONAmboyBighornCoyoteEastSier
Page 275 and 276: • 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
Page 283 and 284: RIDGECREST FIELD OFFICEPROPERTY NAM
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ACECRose SpringFossil FallsLast Cha
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have been dated by radiocarbon and
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MYACENOZOICEPOCHTable 3-65Paleontol
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In the southern area, fossils of la
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At Twenty-Nine Palms, there is an u
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West Mojave Plan FEIR/S - Desert Managers Group

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