DOCSLIB.ORG

Proposed Hrs Documentation Record

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Proposed Hrs Documentation Record HRS DOCUMENTATION RECORD COVER SHEET Name of Site: New Idria Mercury Mine EPA ID No. CA0001900463 Contact Persons Site Investigation: Matt Mitguard, EPA Region 9 Documentation Record: Karen Jurist, EPA Region 9 Pathways, Components, or Threats Not Scored Ground Water Pathway The ground water pathway was not scored because there are currently no known drinking water wells within four miles of site sources. Soil Exposure Pathway The soil exposure pathway was not scored because there are currently no known resident individuals, workers, sensitive environments, or resources on or within 200 feet of sources at the site. Air Migration Pathway The air pathway was not scored because there is no documented observed release to the atmosphere, and scoring the potential to release to air would not likely contribute significantly to the overall listing decision. HRS DOCUMENTATION RECORD Name of Site: New Idria Mercury Mine EPA Region: 9 Date Prepared: 3/2011 Street Address of Site: Township: 17S, Range: 12E City, County, State, Zip Code: Idria, San Benito County, CA 95043 Latitude: 36.418392 North Longitude: 120.672511 West (Ref. 18; Ref 21) Latitude/Longitude Reference Point: The latitude and longitude were measured from the centroid of Source 1, the Calcine Tailings Piles (Ref. 18; Ref. 21). Scores Air Pathway = not scored Ground Water Pathway = not scored Soil Exposure Pathway = not scored Surface Water Pathway = 63.33 HRS SITE SCORE = 31.66 *The street address, coordinates, and contaminant locations presented in this HRS documentation record identify the general area the site is located. They represent one or more locations EPA considers to be part of the site based on the screening information EPA used to evaluate the site for NPL listing. EPA lists national priorities among the known "releases or threatened releases" of hazardous substances; thus, the focus is on the release, not precisely delineated boundaries. A site is defined as where a hazardous substance has been "deposited, stored, placed, or otherwise come to be located." Generally, HRS scoring and the subsequent listing of a release merely represent the initial determination that a certain area may need to be addressed under CERCLA. Accordingly, EPA contemplates that the preliminary description of facility boundaries at the time of scoring will be refined as more information is developed as to where the contamination has come to be located. 1 HAZARD RANKING SYSTEM SUMMARY SCORESHEETS SITE NAME: New Idria Mercury Mine CITY/COUNTY/STATE: Idria, San Benito County, California EPA ID #: CA0001900463 EVALUATOR: Christina Marquis DATE: March 2011 LATITUDE: 36.418392 North LONGITUDE: 120.672511 West 2 S S Ground Water Migration Pathway Score (Sgw) Not scored Not scored Surface Water Migration Pathway Score (Ssw) 63.33 4,010.6889 Soil Exposure Pathway Score (Ss) Not scored Not scored Air Migration Pathway Score (Sa) Not scored Not scored 2 2 2 2 Sgw +Ssw + Ss + Sa XXXXXXX 4,010.6889 2 2 2 2 (Sgw +Ssw + Ss + Sa ) / 4 XXXXXXX 1,002.6722 2 2 2 2 SQRT ((Sgw +Ssw + Ss + Sa ) / 4) XXXXXXX 31.66 2 3/2011 SURFACE WATER OVERLAND/FLOOD MIGRATION COMPONENT SCORESHEET REF. 1, TABLE 4-1 Factor Categories and Factors Maximum Value Value Assigned DRINKING WATER THREAT Likelihood of Release: 1. Observed Release 550 550 2. Potential to Release by Overland Flow: 2a. Containment 10 NS 2b. Runoff 25 NS 2c. Distance to Surface Water 25 NS 2d. Potential to Release by Overland Flow (lines 2a x [2b + 2c]) 500 NS 3. Potential to Release by Flood: 3a. Containment (Flood) 10 NS 3b. Flood Frequency 50 NS 3c. Potential to Release by Flood (lines 3a x 3b) 500 NS 4. Potential to Release (lines 2d + 3c, subject to a maximum of 500) 500 NS 5. Likelihood of Release (higher of lines 1 and 4) 550 550 Waste Characteristics: 6. Toxicity/Persistence a 10,000 7. Hazardous Waste Quantity a 10,000 8. Waste Characteristics 100 100 Targets: 9. Nearest Intake 50 0 10. Population: 10a. Level I Concentrations b 0 10b. Level II Concentrations b 0 10c. Potential Contamination b 0 10d. Population (lines 10a + 10b + 10c) b 0 11. Resources 5 5 12. Targets (lines 9 + 10d + 11) b 5 3 3/2011 Factor Categories and Factors Maximum Value Value Assigned DRINKING WATER THREAT (Concluded) Drinking Water Threat Score: 13. Drinking Water Threat Score ([lines 5 x 8 x 12]/82,500, subject to a maximum of 100) 100 3.33 HUMAN FOOD CHAIN THREAT Likelihood of Release: 14. Likelihood of Release (same value as line 5) 550 550 Waste Characteristics: 15. Toxicity/Persistence/Bioaccumulation a 500,000,000 16. Hazardous Waste Quantity a 10,000 17. Waste Characteristics 1,000 1,000 Targets: 18. Food Chain Individual 50 0 19. Population: 19a. Level I Concentrations b 0 19b. Level II Concentrations b 0 19c. Potential Human Food Chain Contamination b 0 19d. Population b 0 (lines 19a + 19b + 19c) 20. Targets (lines 18 + 19d) b 0 Human Food Chain Threat Score: 21. Human Food Chain Threat Score ([lines 14 x 17 x 20]/82,500, subject to a maximum of 100) 100 0 4 3/2011 Factor Categories and Factors Maximum Value Value Assigned ENVIRONMENTAL THREAT Likelihood of Release: 22. Likelihood of Release (same value as line 5) 550 550 23. Ecosystem Toxicity/Persistence/ Bioaccumulation a 500,000,000 24. Hazardous Waste Quantity a 10,000 25. Waste Characteristics 1,000 1,000 Targets: 26. Sensitive Environments: 26a. Level I Concentrations b 0 26b. Level II Concentrations b 750 26c. Potential Contamination b 0 26d. Sensitive Environments (lines 26a + 26b + 26c) b 750 27. Targets (value from 26d) B 750 Environmental Threat Score: 28. Environmental Threat Score ([lines 22 x 25 x 27]/82,500, subject to a maximum of 60) 60 60 SURFACE WATER OVERLAND/FLOOD MIGRATION COMPONENT SCORE FOR A WATERSHED 29. Watershed Scorec (lines 13 + 21 + 28, 63.33 subject to a maximum of 100) 100 SURFACE WATER OVERLAND/FLOOD MIGRATION COMPONENT SCORE c 30. Component Score (Sof) , (highest score from line 29 for all watersheds evaluated, subject to a maximum of 100) 100 63.33 aMaximum value applies to waste characteristics category. bMaximum value not applicable. cDo not round to nearest integer. 5 3/2011 REFERENCES Reference Description of the Reference Number Hazard Ranking System; Final Rule, 14 December 1990, Vol. 55, No. 241, 138 pages. 1 Available at: http://www.epa.gov/superfund/sites/npl/hrsres/index.htm#HRS%20Rule. U.S. Environmental Protection Agency (EPA), Superfund Chemical Data Matrix 2 (SCDM) Methodology, January 2004, 15 pages. A complete copy of SCDM is available at http://www.epa.gov/superfund/sites/npl/hrsres/tools/scdm.htm. Weston Solutions, Inc., New Idria Mercury Mine, Expanded Site Inspection, Idria, 3 San Benito County, California, Sampling and Analysis Plan, April 2010, 48 pages. Ecology & Environment, Inc., New Idria Mercury Mine, Preliminary Assessment/Site 4 Inspection, March 31, 1998, 68 pages. Dames & Moore, Application for Facility Permit/Waste Discharge, New Idria Mine, 5 Idria, California 95021, April 21, 1989, 22 pages. Weston Solutions, Inc., Expanded Site Inspection Report, New Idria Mercury Mine, 6 San Benito County, California, October 2010, 1200 pages. Bureau of Land Management, Draft Clear Creek Management Area Resource 7 Management Plan & Environmental Impact Statement, Hollister, California, November 2009, 735 pages. University of California Santa Cruz, Mercury Speciation in Acid Mine Drainage: 8 New Idria Quicksilver Mine, California, September 1998, 41 pages. California Regional Water Quality Control Board, Central Valley Region, New Idria 9 Mine, San Benito County – Complaint Investigation, June 2, 1975, 4 pages. California Regional Water Quality Control Board, Central Valley Region, Inspection 10 of New Idria Mine, San Benito County, July 22, 1988, 6 pages. California Regional Water Quality Control Board, Central Valley Region, New Idria 11 Mine, San Benito County, March 7, 2003, 15 pages. TechLaw, Inc., Potentially Responsible Party and Insurance Archeology Search 12 Report, New Idria Mercury Mine Site, San Benito County, California, June 5, 2006, 205 pages. U.S. Environmental Protection Agency, Region IX, Wetlands Regulatory Office (WTR-8), Summary of Site Inspection to Verify the Presence of Jurisdictional 13 Wetlands for the New Idria Mercury Mine Site, including San Carlos and Silver Creeks, San Benito and Fresno Counties, California, December 16, 2010, 18 pages. Weston Solutions, Inc., Expanded Site Inspection. Logbook, New Idria Mercury 14 Mine, July 6, 2010 through July 23, 2010, 8 pages. U.S. Bureau of Mines, Mercury Potential of the United States, Information Circular 15 8252, 1965, 34 pages. U.S. Environmental Protection Agency, Solid Waste and Emergency Response, Using 16 Qualified Data to Document an Observed Release and Observed Contamination, November 1996, 18 pages. 6 3/2011 County of San Benito, Proposal by the County of San Benito before the Central Valley Regional Water Quality Control Board – Request for Investigation, Enforcement, and 17 Regional Planning necessary to clean up and abate the discharge of pollutants from the New Idria Mercury Mine in San Benito County, undated, 28 pages. 18 U.S. Geological Survey, Idria, California 7.5 Minute quadrangle 1969, 1 page. National Operations Center, Sampling and Analysis Plan, Archer Mine, April 15, 19 2009, 12 pages. Weston Solutions, Inc., Surface Water Pathway and Target Distance Limit Map, New 20 Idria Mercury Mine, December 13, 2010, 1 page. Weston Solutions, Inc., Site Latitude and Longitude and Source Area, New Idria 21 Mercury Mine, December 13, 2010, 1 page. Meierer, Bob, CompuChem, Memorandum to Stan Kott, ESAT/ICF-LDC, Case#: 22 40334, SDG#: MY71L3, October 5, 2010, 339 pages. Meierer, Bob, CompuChem, Memorandum to Stan Kott, ESAT/ICF-LDC, Case#: 23 40334, SDG#: MY71M9, October 11, 2010, 264 pages. CompuChem, Memorandum to Garrett Peterson, U.S.
Load more

Recommended publications
  • Superfund Site Idria, San Benito County, California Removal Action Final Report
    SEMS-RM DOCID # 1158974 New Idria Mercury Mine Superfund Site Idria, San Benito County, California Removal Action Final Report USDA Forest Service Contract Number: AG-91S8-11-0003 Document Control Number: 12238.050.001.0001 April 2012 Prepared for: U.S. Environmental Protection Agency Region 9 Prepared by: Weston Solutions, Inc. TABLE OF CONTENTS 1.0 Introduction ........................................................................................................................1 2.0 Background ........................................................................................................................1 2.1 Location and Description ........................................................................................1 2.2 Site History .............................................................................................................2 2.3 Previous Investigations and Regulatory Involvement .............................................3 3.0 Removal Action Activities .................................................................................................3 3.1 Mobilization/Site Preparation ..................................................................................3 3.2 Site Security .............................................................................................................4 3.3 AMD Conveyance Construction ..............................................................................4 3.4 Lower Pond Refurbishing ........................................................................................5
    [Show full text]
  • Chapter 2 Microbially Enhanced Dissolution of Hgs in an Acid Mine
    Stability, Transformations, and Fate of Residual Mercury at the Inoperative New Idria Mercury Mine, New Idria, California A DISSERTATION SUBMITTED TO THE DEPARTMENT OF GEOLOGICAL AND ENVIRONMENTAL SCIENCES AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPY Adam Douglas Jew January 2013 © 2013 by Adam Douglas Jew. All Rights Reserved. Re-distributed by Stanford University under license with the author. This work is licensed under a Creative Commons Attribution- Noncommercial 3.0 United States License. http://creativecommons.org/licenses/by-nc/3.0/us/ This dissertation is online at: http://purl.stanford.edu/jj799kf8676 ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Gordon Brown, Jr, Primary Adviser I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Scott Fendorf I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Alfred Spormann I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. James J. Rytuba Approved for the Stanford University Committee on Graduate Studies. Patricia J. Gumport, Vice Provost Graduate Education This signature page was generated electronically upon submission of this dissertation in electronic format.
    [Show full text]
  • Chapter 8 Natural Resources
    CHAPTER 8. NATURAL RESOURCES San Benito County General Plan Chapter 8 Natural Resources This chapter describes the location and extent of existing natural resources within San Benito County, including water resources, mineral and energy resources, biological resources, and oil and gas resources. This chapter is organized into the following sections: . Water Resources (Section 8.1) . Energy and Mineral Resources (Section 8.2) . Biological Resources (Section 8.3) . Oil and Gas Resources (Section 8.4) Public Draft Background Report Page 8-1 November 2010 CHAPTER 8. NATURAL RESOURCES San Benito County General Plan This page is intentionally left blank. Page 8-2 Public Review Draft Background Report November 2010 CHAPTER 8. NATURAL RESOURCES San Benito County General Plan SECTION 8.1 WATER RESOURCES Introduction This section summarizes and analyzes information about the availability and quality of water resources in San Benito County. It includes information about historical and current conditions and projections for future ground water, surface water, and imported water resource conditions, where available. Analyzing existing water resource conditions and water supply data provides important information about the ability of the County to provide and manage water supplies that meet both existing and projected future growth. Key Terms Acre-foot (AF). The volume of water required to cover one acre of land (43,560 square feet) to a depth of one foot. One acre-foot is equal to 325,851 gallons or 1,233 cubic meters. Historically, an acre-foot represents the amount of water typically used by one family during a year. Aquifer. A geological formation or structure that stores and/or transmits water, such as wells and springs.
    [Show full text]
  • Vegetation Classification, Descriptions, and Mapping of The
    Vegetation Classification, Descriptions, and Mapping of the Clear Creek Management Area, Joaquin Ridge, Monocline Ridge, and Environs in San Benito and Western Fresno Counties, California Prepared By California Native Plant Society And California Department of Fish and Game Final Report Project funded by Funding Source: Resource Assessment Program California Department of Fish and Game And Funding Source: Resources Legacy Fund Foundation Grant Project Name: Central Coast Mapping Grant #: 2004-0173 February 2006 Vegetation Classification, Descriptions, and Mapping of the Clear Creek Management Area, Joaquin Ridge, Monocline Ridge, and Environs in San Benito and Western Fresno Counties, California Final Report February 2006 Principal Investigators: California Native Plant Society staff: Julie Evens, Senior Vegetation Ecologist Anne Klein, Vegetation Ecologist Jeanne Taylor, Vegetation Assistant California Department of Fish and Game staff: Todd Keeler-Wolf, Ph.D., Senior Vegetation Ecologist Diana Hickson, Senior Biologist (Botany) Addresses: California Native Plant Society 2707 K Street, Suite 1 Sacramento, CA 95816 California Department of Fish and Game Biogeographic Data Branch 1807 13th Street, Suite 202 Sacramento, CA 95814 Reviewers: Bureau of Land Management: Julie Anne Delgado, Botanist California State University: John Sawyer, Professor Emeritus TABLE OF CONTENTS ABSTRACT ................................................................................................................................................. 1 BACKGROUND...........................................................................................................................................
    [Show full text]
  • Emergency Response Communication Plan for Site
    SEMS-RM DOCID # 100019082 EMERGENCY RESPONSE COMMUNICATION PLAN MINE SITE NAME: New Idria Mercury Mine Updated: August 2018 I. MINE SITE INFORMATION Mine Name: New Idria Mercury Mine Address: New Idria Rd City: Idria, CA I County: San Benito I State: CA I Zip: 95043 Assessor's Parcel No. Latitude: Longitude: 029-310-003, 029-310-016, 029-310-017, ... 36°24'57.62"N 120°40'23.33"W II. EMERGENCY CONTACT FOR MINE SITE Name: Bianca Handley I Title: RPM Organization Name: US Environmental Protection Agency (EPA) Street Address: 75 Hawthorne Ave City: San Francisco I County: I State: CA I Zip: 94105 Telephone Nos. 415-972-3023, 415-470-6036 Email Address: [email protected] Name: On-Scene Coordinator On Duty I Title: OSC Organization Name: US Environmental Protection Agency (EPA) Street Address: 75 Hawthorne Ave City: San Francisco I County: I State: CA I Zip: 94105 Telephone Nos. (800) 300-2193 III. REGULATORY STATUS: The site was placed on the National Priorities List (NPL) by EPA in September 2011. EPA issued a special notice letter to Buckhorn Inc. in September 2015. The site is also listed in the State Water Resources Control Board (SWRCB) GeoTracker database under Futures Foundation (L10006522328) as a land disposal site, Case #5D352001H01. Potentially Responsible Party: Buckhorn Inc. Contact Person Name: Doug Christoff Organization Name: Meyers Inc. Telephone No. 330-761-6357 Cell Phone: 330-631-2512 IV. LOCAL AGENCY EMERGENCY CONTACTS Agency Name: San Benito County Office of Emergency Services Contact Person Name: Kris Mangano Title: Emergency Services Manager I Street Address: 471 4th St City: Hollister I County: San Benito I State: CA I Zip: 95023 Telephone No.
    [Show full text]
  • CURRICULUM VITAE Ryan O'dell Bureau of Land Management
    CURRICULUM VITAE Ryan O’Dell Bureau of Land Management Central Coast Field Office Marina, CA 93933 Email: [email protected] Education M.Sc. Soils and Biogeochemistry (2005) ‘Revegetation of subgrade substrates: I. Barren serpentine substrates. II. Cu and Zn minespoil’ University of California, Davis Major Advisor: Victor P. Claassen B.S. Plant Biology (2002) University of California, Davis Professional Experience Bureau of Land Management, Central Coast Field Office, Marina, CA. Natural Resource Specialist (2007 - Present) – applied ecology, land management practices, environmental compliance, NEPA, ESA. Rare, threatened and endangered plant species survey, monitoring, and recovery; seed collection and seed science; soil science; invasive plant species control; ecosystem restoration; paleontology; paleoclimate and climate change; serpentine; vertic clay; San Joaquin Desert and desert ecology; plant edaphic endemism; research on all of the above (PI: Ryan O’Dell). HT Harvey and Associates, Sacramento Office, Sacramento, CA. Associate Ecologist (2005) - environmental compliance, CEQA, CESA. Rare, threatened and endangered plant species survey; mitigation and monitoring. University of California, Davis, CA. Graduate Research Assistant (2002 - 2007). Revegetation of subgrade substrates: barren serpentine, Cu and Zn minespoil, decomposed granite, volcanic lahar, and alkaline/saline alluvium; research on all of the above (PI: Victor P. Claassen). University of California, Davis, CA. Post-Graduate Researcher (2002). Revegetation of Owens Dry Lake playa; planting, project maintenance, data collection assistant (PI: James H. Richards). US Forest Service, Fremont-Winema National Forest, Chemult Ranger District, Chemult, OR. Seasonal Botanist (Summer 2001). Rare, threatened and endangered plant species survey. 1 Peer-Reviewed Journal Publications O’Dell RE, Erwin DM, Holroyd P, Rankin BD, and Ibraheem El-Faramawi M.
    [Show full text]
  • Camissonia Benitensis) Cynthia A
    Santa Clara University Scholar Commons Biology College of Arts & Sciences 9-1-2013 Cryptic genetic subdivision in the San Benito evening primrose (Camissonia benitensis) Cynthia A. Dick Julie A. Herman Ryan E. O'Dell Adriana Lopez-Villalobos Chris Eckert See next page for additional authors Follow this and additional works at: http://scholarcommons.scu.edu/bio Part of the Genetics and Genomics Commons, and the Plant Sciences Commons Recommended Citation Dick, Cynthia A.; Herman, Julie A.; O'Dell, Ryan E.; Lopez-Villalobos, Adriana; Eckert, Chris; and Whittall, Justen B., "Cryptic genetic subdivision in the San Benito evening primrose (Camissonia benitensis)" (2013). Biology. Paper 35. http://scholarcommons.scu.edu/bio/35 This Article is brought to you for free and open access by the College of Arts & Sciences at Scholar Commons. It has been accepted for inclusion in Biology by an authorized administrator of Scholar Commons. For more information, please contact [email protected]. Authors Cynthia A. Dick, Julie A. Herman, Ryan E. O'Dell, Adriana Lopez-Villalobos, Chris Eckert, and Justen B. Whittall This article is available at Scholar Commons: http://scholarcommons.scu.edu/bio/35 Conserv Genet DOI 10.1007/s10592-013-0533-4 RESEARCH ARTICLE Cryptic genetic subdivision in the San Benito evening primrose (Camissonia benitensis) Cynthia A. Dick • Julie A. Herman • Ryan E. O’Dell • Adriana Lopez-Villalobos • Chris Eckert • Justen B. Whittall Received: 15 December 2012 / Accepted: 26 August 2013 Ó The Author(s) 2013. This article is published with open access at Springerlink.com Abstract When rare plants are distributed across a range of genetic clusters were identified by InStruct and STRUC- habitats, ecotypic differentiation may arise requiring cus- TURE that do not correlate with habitat or watershed.
    [Show full text]
  • A Checklist of Vascular Plants Endemic to California
    Humboldt State University Digital Commons @ Humboldt State University Botanical Studies Open Educational Resources and Data 3-2020 A Checklist of Vascular Plants Endemic to California James P. Smith Jr Humboldt State University, [email protected] Follow this and additional works at: https://digitalcommons.humboldt.edu/botany_jps Part of the Botany Commons Recommended Citation Smith, James P. Jr, "A Checklist of Vascular Plants Endemic to California" (2020). Botanical Studies. 42. https://digitalcommons.humboldt.edu/botany_jps/42 This Flora of California is brought to you for free and open access by the Open Educational Resources and Data at Digital Commons @ Humboldt State University. It has been accepted for inclusion in Botanical Studies by an authorized administrator of Digital Commons @ Humboldt State University. For more information, please contact [email protected]. A LIST OF THE VASCULAR PLANTS ENDEMIC TO CALIFORNIA Compiled By James P. Smith, Jr. Professor Emeritus of Botany Department of Biological Sciences Humboldt State University Arcata, California 13 February 2020 CONTENTS Willis Jepson (1923-1925) recognized that the assemblage of plants that characterized our flora excludes the desert province of southwest California Introduction. 1 and extends beyond its political boundaries to include An Overview. 2 southwestern Oregon, a small portion of western Endemic Genera . 2 Nevada, and the northern portion of Baja California, Almost Endemic Genera . 3 Mexico. This expanded region became known as the California Floristic Province (CFP). Keep in mind that List of Endemic Plants . 4 not all plants endemic to California lie within the CFP Plants Endemic to a Single County or Island 24 and others that are endemic to the CFP are not County and Channel Island Abbreviations .
    [Show full text]
  • Element Associations in Soils of the San Joaquin Valley, California by R. R. Tidball, R. C. Severson, C. A. Gent, and G. 0. Ridd
    UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Element associations in soils of the San Joaquin Valley, California By R. R. Tidball, R. C. Severson, C. A. Gent, and G. 0. Riddle Open-File Report 86-583 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and strati graphic nomenclature. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS. 1986 CONTENTS Page Abstract.................................................................. 1 Introduction.............................................................. 1 Acknowledgements.......................................................... 3 Methods................................................................... 3 Results................................................................... 5 Discussion................................................................ 8 References cited.......................................................... 12 ILLUSTRATIONS Figure 1. Index map showing the location of the San Luis Drain Service Area and the Panoche Study Area in the San Joaquin Valley, California........................................................... 2 Figure 2.--Map of 721 soil sampling sites in the Panoche Study Area, western Fresno County, California.................................... 4 Figure 3.--Map of factor-1 scores for soils of the Panoche Study Area. Gray scales delineate percentiles of the frequency distribution of gridded values estimated from sample scores.........................
    [Show full text]
  • Environmental Considerations Related to Mining of Nonfuel Minerals
    Environmental Considerations Related to Mining of Nonfuel Minerals Chapter B of Critical Mineral Resources of the United States—Economic and Environmental Geology and Prospects for Future Supply Professional Paper 1802–B U.S. Department of the Interior U.S. Geological Survey Periodic Table of Elements 1A 8A 1 2 hydrogen helium 1.008 2A 3A 4A 5A 6A 7A 4.003 3 4 5 6 7 8 9 10 lithium beryllium boron carbon nitrogen oxygen fluorine neon 6.94 9.012 10.81 12.01 14.01 16.00 19.00 20.18 11 12 13 14 15 16 17 18 sodium magnesium aluminum silicon phosphorus sulfur chlorine argon 22.99 24.31 3B 4B 5B 6B 7B 8B 11B 12B 26.98 28.09 30.97 32.06 35.45 39.95 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 potassium calcium scandium titanium vanadium chromium manganese iron cobalt nickel copper zinc gallium germanium arsenic selenium bromine krypton 39.10 40.08 44.96 47.88 50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72 72.64 74.92 78.96 79.90 83.79 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 rubidium strontium yttrium zirconium niobium molybdenum technetium ruthenium rhodium palladium silver cadmium indium tin antimony tellurium iodine xenon 85.47 87.62 88.91 91.22 92.91 95.96 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 131.3 55 56 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 cesium barium hafnium tantalum tungsten rhenium osmium iridium platinum gold mercury thallium lead bismuth polonium astatine radon 132.9 137.3 178.5 180.9 183.9 186.2 190.2 192.2 195.1 197.0 200.5 204.4 207.2 209.0 (209) (210)(222) 87 88 104
    [Show full text]
  • Chapter 11 Safety
    Chapter 11 Safety This chapter describes potential public health and safety hazards within San Benito County and is divided into the followingsections: GeologicandSeismicHazards(Section11.1) FloodHazards(Section11.2) WildlandFireHazards(Section11.3) HumanmadeHazards(Section11.4) AirportSafety(Section11.5) AirQuality(Section11.6) PhotobyCALFIRE CHAPTER 11. SAFETY San Benito County General Plan Thispageisintentionallyleftblank. Page 11-2 Public Review Draft Background Report November 2010 CHAPTER 11. SAFETY San Benito County General Plan SECTION 11.1 GEOLOGIC AND SEISMIC HAZARDS Introduction This section provides an assessment of geologic and seismic hazards within San Benito County. This includes ground stability and earthquake hazards that must be considered during the planning and developmentprocessinthecounty. Key Terms Alluvial/Alluvium.Erosioncausedbywindandrainintroducessoils,minerals,androckfragmentsinto streams and rivers. These materials are reduced by the action of water movement and mixed with debrisastheyarewasheddownthemountainsandhills.Theyaredepositedassedimentthatspreads outinafanshapewhenthewatercoursereachesarelativelylevelarea.Suchdepositsarecalledalluvial materialsoralluvium.Thefanshapedzoneofdepositedsedimentiscalledanalluvialfan. Asbestos.Ageneraltermfornaturallyoccurringfibroussilicateminerals.Themostcommontypeof asbestosinCaliforniaisfromtheserpentinemineralgroup,commonlyfoundinultramaficrocks. AlquistPrioloFaultZones.TheAlquistPrioloEarthquakeFaultZoningAct(APEFZA),passedin1972, requiresaprofessionalgeologisttoidentifyzonesofspecialstudyaroundactivefaults.
    [Show full text]
  • Serpentine Soil Endemics in the California Flora Occur in Barer Serpentine Habitats with Lower Soil Calcium Levels Than Serpentine Tolerators
    RESEARCH ARTICLE Adaptation and divergence in edaphic specialists and generalists: serpentine soil endemics in the California flora occur in barer serpentine habitats with lower soil calcium levels than serpentine tolerators Shelley A. Sianta1,2 and Kathleen M. Kay1 Manuscript received 4 December 2018; revision accepted 19 March PREMISE: Adaptation to harsh edaphic substrates has repeatedly led to the evolution of 2019. edaphic specialists and generalists. Yet, it is unclear what factors promote specialization 1 Department of Ecology and Evolutionary Biology, University of versus generalization. Here, we search for habitat use patterns associated with California, Santa Cruz, California serpentine endemics (specialists) and serpentine tolerators (generalists) to indirectly 2 Author for correspondence (e-mail: [email protected]) test the hypothesis that trade- offs associated with serpentine adaptation promote Citation: Sianta, S. A. and K. M. Kay. 2019. Adaptation and divergence specialization. We predict that (1) endemics have adapted to chemically harsher and more in edaphic specialists and generalists: serpentine soil endemics in the California flora occur in barer serpentine habitats with lower soil bare serpentine habitats than tolerators, and (2) edaphic endemics show more habitat calcium levels than serpentine tolerators. American Journal of Botany divergence from their sister species than tolerators do among on- and off- serpentine 106(5): 690–703. populations. doi:10.1002/ajb2.1285 METHODS: We selected 8 serpentine endemic and 9 serpentine tolerator species representing independent adaptation to serpentine. We characterized soil chemistry and microhabitat bareness from one serpentine taxon of each species and from a paired nonserpentine sister taxon, resulting in 8 endemic and 9 tolerator sister- taxa pairs.
    [Show full text]