Arizona's 2006 Impaired and Not Attaining Waters (Draft)
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The Church Rock Uranium Mill Tailings Spill a Health and Environmental Assessment
THE CHURCH ROCK URANIUM MILL TAILINGS SPILL A HEALTH AND ENVIRONMENTAL ASSESSMENT SUMMARY REPORT Jere Millard Bruce Gallaher David Baggett Steven Gary September 1983 New Mexico Environmental Improvement Division Health and Environment Department P.O. Box 968 Santa TQ, New Mexico 87504-0968 000791 Front and Rear Cover Photographs Provided Courtesy of the U. S. Environmental Protection Agency, Environmental Monitoring and Support Laboratory. Las Vegas, Nevada. 000792 THE CHURCH ROCK URANIUM MILL TAILINGS SPILL: A HEALTH AND ENVIRONMENTAL ASSESSMENT Executive Summary The largest single release of liquid radioactive waste in the Uruted States occurred at the United Nuclear Corporation^ uranium mill near Church Rock, New Mexico, in July 1979. This document reports the results of environmental monitoring conducted by the New Mexico Envi- ronmental Improvement Division (EID) subsequent to the mill tailings spill* Interpretation of data leads to the general conclusion that although the spill was potentially hazardous. Its short-term and long- term impacts on people and the environment were quite limited. How- ever/ the data suggest that dewatering effluents (water from under- ground uranium mines) continually pumped into the Puerco River may represent a greater long-term hazard than the spill. Recommendations are made regarding continued environmental monitoring and resumption of normal land and water use along the Puerco River. EID is also spillissuin ang dtwo its technicaimpacts.l reports to provide more detailed information on the The spill occurred early on the morning of July 16 when the retention dam for a tailings pond failed. Most of the 1100 tons of solid material released was caught by a small emergency catchment dam. -
Biological Assessment After Uranium Mill Tailings Spill, Church Rock, New Mexico
FOR ADMINISTRATIVE USE LIMITED DISTRIBUTION PUBLIC HEALTH SERVlCE-CDC-Atlanta KOT TOR PUBLICATION EPI-79-94-2 December 24, 1980 TO Director, Centers for Disease Control FROM Chronic Diseases Division Bureau of Epidemiology : • i I'J' ! •t;?| SUBJECT: Biological Assessment After Uranium Mill Tailings Spill, Church Rock, New Mexico SUMMARY On July 16, 1979, a tailings pond dam broke near Church Rock, New Mexico, spilling liquid and solid wastes contami- nated with radioactive uranium, thorium, radium, lead, and polonium- Subsequent evaluation of 6 Navajos potentially exposed to the materials spilled in the Rio Puerco River showed them to have no detectable increase in radioactivity by whole-body counting and no increase in urinary radio- nuclides* Since food-chain analysis is a more sensitive indicator of possible radiation dose, 8 local and 3 control animals were aufcopsied to determine radionuclide concentrations in edible tissues. Calculations indicate that human doses which would result from consumption of such animals would be higher from local than from control animals; however, the data also suggest chat exposure from chronic ingest ion of uranium mine dewatering effluent may be responsible for the elevated radionuclide concentrations found in tissue of local animals. Even though no state or federal regulations were violated, radionuclide concentrations found in animals and calculated human ingestion doses fell in a range Chat justifies both further surveillance of radionuclides in animals and the natural environment and further efforts to reduce the amount of radiation Co which humans and animals are exposed, Navajos in the area have been advised that. theiT exposure Co radionuclides may be reduced by not eat^ - ing kidney and liver from local animals. -
Index 1 INDEX
Index 1 INDEX A Blue Spring 76, 106, 110, 115 Bluff Spring Trail 184 Adeii Eechii Cliffs 124 Blythe 198 Agate House 140 Blythe Intaglios 199 Agathla Peak 256 Bonita Canyon Drive 221 Agua Fria Nat'l Monument 175 Booger Canyon 194 Ajo 203 Boundary Butte 299 Ajo Mountain Loop 204 Box Canyon 132 Alamo Canyon 205 Box (The) 51 Alamo Lake SP 201 Boyce-Thompson Arboretum 190 Alstrom Point 266, 302 Boynton Canyon 149, 161 Anasazi Bridge 73 Boy Scout Canyon 197 Anasazi Canyon 302 Bright Angel Canyon 25, 51 Anderson Dam 216 Bright Angel Point 15, 25 Angels Window 27 Bright Angel Trail 42, 46, 49, 61, 80, 90 Antelope Canyon 280, 297 Brins Mesa 160 Antelope House 231 Brins Mesa Trail 161 Antelope Point Marina 294, 297 Broken Arrow Trail 155 Apache Junction 184 Buck Farm Canyon 73 Apache Lake 187 Buck Farm Overlook 34, 73, 103 Apache-Sitgreaves Nat'l Forest 167 Buckskin Gulch Confluence 275 Apache Trail 187, 188 Buenos Aires Nat'l Wildlife Refuge 226 Aravaipa Canyon 192 Bulldog Cliffs 186 Aravaipa East trailhead 193 Bullfrog Marina 302 Arch Rock 366 Bull Pen 170 Arizona Canyon Hot Springs 197 Bush Head Canyon 278 Arizona-Sonora Desert Museum 216 Arizona Trail 167 C Artist's Point 250 Aspen Forest Overlook 257 Cabeza Prieta 206 Atlatl Rock 366 Cactus Forest Drive 218 Call of the Canyon 158 B Calloway Trail 171, 203 Cameron Visitor Center 114 Baboquivari Peak 226 Camp Verde 170 Baby Bell Rock 157 Canada Goose Drive 198 Baby Rocks 256 Canyon del Muerto 231 Badger Creek 72 Canyon X 290 Bajada Loop Drive 216 Cape Final 28 Bar-10-Ranch 19 Cape Royal 27 Barrio -
Yanawant: Paiute Places and Landscapes in the Arizona Strip
Yanawant Paiute Places and Landscapes in the Arizona Strip Volume Two OfOfOf The Arizona Strip Landscapes and Place Name Study Prepared by Diane Austin Erin Dean Justin Gaines December 12, 2005 Yanawant Paiute Places and Landscapes in the Arizona Strip Volume Two Of The Arizona Strip Landscapes and Place Name Study Prepared for Bureau of Land Management, Arizona Strip Field Office St. George, Utah Prepared by: Diane Austin Erin Dean Justin Gaines Report of work carried out under contract number #AAA000011TOAAF030023 2 Table of Contents Preface……………………………………………………………………………………………ii i Chapter One: Southern Paiute History on the Arizona Strip………………………………...1 Introduction.............................................................................................................................. 1 1.1 Early Southern Paiute Contact with Europeans and Euroamericans ........................... 5 1.2 Southern Paiutes and Mormons ........................................................................................ 8 1.3 The Second Powell Expedition......................................................................................... 13 1.4 An Onslaught of Cattle and Further Mormon Expansion............................................ 16 1.5 Interactions in the First Half of the 20 th Century ......................................................... 26 Chapter Two: Southern Paiute Place Names On and Near the Arizona Strip 37 Introduction ........................................................................................................................... -
TMDL Water Quality Study of the Virgin River Watershed
TMDL Water Quality Study of the Virgin River Watershed DRAFT January 28, 2004 Submitted to: Utah Department of Environmental Quality Division of Water Quality 288 North 1460 West Salt Lake City, UT 84116 Kent Montague Project Manager Harry Lewis Judd Project Supervisor Submitted by: Tetra Tech, Inc. Water Resources and TMDL Center Utah Division of Water Quality TMDL Water Quality Study of the Virgin River CONTENTS 1.0 Introduction.......................................................................................................................................1 2.0 Water Quality Standards ...................................................................................................................5 2.1 303(d) List Status ........................................................................................................................5 2.2 Parameters of Concern.................................................................................................................7 2.2.1 Salinity and Total Dissolved Solids ........................................................................................7 2.2.2 Temperature ............................................................................................................................8 2.2.3 Total Phosphorus and Dissolved Oxygen ...............................................................................8 2.2.4 Selenium..................................................................................................................................8 2.3 Applicable -
Beaver DAM Wash National Conservation
Beaver Dam Wash BLM National Conservation Area What is a National Conservation Area? Through the Omnibus Public Land Management Act of 2009, Congress designated the Beaver Dam Wash National Conservation Area (NCA) in Washington County, Utah “to conserve, protect, and enhance… the ecological, scenic, wildlife, recreational, cultural, historical, natural, educational, and scientific resources” of these public lands. The new NCA comprising roughly of 63,500 acres is managed by the BLM’s St. George Field Office. Where is the Beaver Dam Wash NCA? Located in the southwest corner of Washington County, Utah, the Beaver Dam Wash NCA is approximately 22 miles west of St. George, Utah and roughly 13 miles northwest of Littlefield, Arizona. The Nevada and Arizona state lines, border the western section of the NCA and Interstate 15 and the Virgin River parallel its southern boundary. U.S. Highway 91 is the only paved highway through the NCA. What Are the Special Values of the Beaver Dam Wash NCA? This NCA is within an ecological transition zone between the Mojave Desert and the Great Basin. Creosote bush, white bursage, and other desert shrubs grow at lower elevations and provide habitat for desert bighorn sheep and the Mojave Desert tortoise, a threatened species listed under the Endangered Species Act. Joshua trees and dense stands of blackbrush cover St. George Field Office the slopes of the Beaver Dam Mountains, which rise along the eastern boundary of the NCA. Surface water flows in the upper reaches of Beaver Dam Wash, but rarely travels all the way through the NCA. Riparian vegetation along the stream channel is important habitat for migratory birds and other wildlife. -
Clear-Water Tributaries of the Colorado River in the Grand Canyon, Arizona: Stream Ecology and the Potential Impacts of Managed Flow by René E
Clear-water tributaries of the Colorado River in the Grand Canyon, Arizona: stream ecology and the potential impacts of managed flow by René E. Henery ABSTRACT Heightened attention to the sediment budget for the Colorado River systerm in Grand Canyon Arizona, and the importance of the turbid tributaries for delivering sediment has resulted in the clear-water tributaries being overlooked by scientists and managers alike. Existing research suggests that clear-water tributaries are remnant ecosystems, offering unique biotic communities and natural flow patterns. These highly productive environments provide important spawning, rearing and foraging habitat for native fishes. Additionally, clear water tributaries provide both fish and birds with refuge from high flows and turbid conditions in the Colorado River. Current flow management in the Grand Canyon including beach building managed floods and daily flow oscillations targeting the trout population and invasive vegetation has created intense disturbance in the Colorado mainstem. This unprecedented level of disturbance in the mainstem has the potential to disrupt tributary ecology and increase pressures on native fishes. Among the most likely and potentially devastating of these pressures is the colonization of tributaries by predatory non-native species. Through focused conservation and management tributaries could play an important role in the protection of the Grand Canyon’s native fishes. INTRODUCTION More than 490 ephemeral and 40 perennial tributaries join the Colorado River in the 425 km stretch between Glen Canyon Dam and Lake Mead. Of the perennial tributaries in the Grand Canyon, only a small number including the Paria River, the Little Colorado River and Kanab Creek drain large watersheds and deliver large quantities of sediment to the Colorado River mainstem (Oberlin et al. -
Appendix a Assessment Units
APPENDIX A ASSESSMENT UNITS SURFACE WATER REACH DESCRIPTION REACH/LAKE NUM WATERSHED Agua Fria River 341853.9 / 1120358.6 - 341804.8 / 15070102-023 Middle Gila 1120319.2 Agua Fria River State Route 169 - Yarber Wash 15070102-031B Middle Gila Alamo 15030204-0040A Bill Williams Alum Gulch Headwaters - 312820/1104351 15050301-561A Santa Cruz Alum Gulch 312820 / 1104351 - 312917 / 1104425 15050301-561B Santa Cruz Alum Gulch 312917 / 1104425 - Sonoita Creek 15050301-561C Santa Cruz Alvord Park Lake 15060106B-0050 Middle Gila American Gulch Headwaters - No. Gila Co. WWTP 15060203-448A Verde River American Gulch No. Gila County WWTP - East Verde River 15060203-448B Verde River Apache Lake 15060106A-0070 Salt River Aravaipa Creek Aravaipa Cyn Wilderness - San Pedro River 15050203-004C San Pedro Aravaipa Creek Stowe Gulch - end Aravaipa C 15050203-004B San Pedro Arivaca Cienega 15050304-0001 Santa Cruz Arivaca Creek Headwaters - Puertocito/Alta Wash 15050304-008 Santa Cruz Arivaca Lake 15050304-0080 Santa Cruz Arnett Creek Headwaters - Queen Creek 15050100-1818 Middle Gila Arrastra Creek Headwaters - Turkey Creek 15070102-848 Middle Gila Ashurst Lake 15020015-0090 Little Colorado Aspen Creek Headwaters - Granite Creek 15060202-769 Verde River Babbit Spring Wash Headwaters - Upper Lake Mary 15020015-210 Little Colorado Babocomari River Banning Creek - San Pedro River 15050202-004 San Pedro Bannon Creek Headwaters - Granite Creek 15060202-774 Verde River Barbershop Canyon Creek Headwaters - East Clear Creek 15020008-537 Little Colorado Bartlett Lake 15060203-0110 Verde River Bear Canyon Lake 15020008-0130 Little Colorado Bear Creek Headwaters - Turkey Creek 15070102-046 Middle Gila Bear Wallow Creek N. and S. Forks Bear Wallow - Indian Res. -
Rainfall-Runoff Model for Black Creek Watershed, Navajo Nation
Rainfall-Runoff Model for Black Creek Watershed, Navajo Nation Item Type text; Proceedings Authors Tecle, Aregai; Heinrich, Paul; Leeper, John; Tallsalt-Robertson, Jolene Publisher Arizona-Nevada Academy of Science Journal Hydrology and Water Resources in Arizona and the Southwest Rights Copyright ©, where appropriate, is held by the author. Download date 25/09/2021 20:12:23 Link to Item http://hdl.handle.net/10150/301297 37 RAINFALL-RUNOFF MODEL FOR BLACK CREEK WATERSHED, NAVAJO NATION Aregai Tecle1, Paul Heinrich1, John Leeper2, and Jolene Tallsalt-Robertson2 ABSTRACT This paper develops a rainfall-runoff model for estimating surface and peak flow rates from precipitation storm events on the Black Creek watershed in the Navajo Nation. The Black Creek watershed lies in the southern part of the Navajo Nation between the Defiance Plateau on the west and the Chuska Mountains on the east. The area is in the semiarid part of the Colorado Plateau on which there is about 10 inches of precipitation a year. We have two main purposes for embarking on the study. One is to determine the amount of runoff and peak flow rate generated from rainfall storm events falling on the 655 square mile watershed and the second is to provide the Navajo Nation with a method for estimating water yield and peak flow in the absence of adequate data. Two models, Watershed Modeling System (WMS) and the Hydrologic Engineering Center (HEC) Hydrological Modeling System (HMS) that have Geographic Information System (GIS) capabilities are used to generate stream hydrographs. Figure 1. Physiographic map of the Navajo Nation with the Chuska The latter show peak flow rates and total amounts of Mountain and Deance Plateau and Stream Gaging Stations. -
FISH of the COLORADO RIVER Colorado River and Tributaries Between Glen Canyon Dam and Lake Mead
FISH OF THE COLORADO RIVER Colorado River and tributaries between Glen Canyon Dam and Lake Mead ON-LINE TRAINING: DRAFT Outline: • Colorado River • Glen Canyon Dam Adaptive Management Program (GCDAMP) • Native Fishes • Common Non-Native Fishes • Rare Non-Native Fishes • Standardized Sampling Protocol Colorado River: • The Colorado River through Grand Canyon historically hosted one of the most distinct fish assemblages in North America (lowest diversity, highest endemism) • Aquatic habitat was variable ▫ Large spring floods ▫ Cold winter temperatures ▫ Warm summer temperatures ▫ Heavy silt load • Today ▫ Stable flow releases ▫ Cooler temperatures ▫ Predation Overview: • The Glen Canyon Dam Adaptive Management Program was established in 1997 to address downstream ecosystem impacts from operation of Glen Canyon Dam and to provide research and monitoring of downstream resources. Area of Interest: from Glen Canyon Dam to Lake Mead Glen Canyon Dam Adaptive Management Program (Fish) Goals: • Maintain or attain viable populations of existing native fish, eliminate risk of extinction from humpback chub and razorback sucker, and prevent adverse modification to their critical habitat. • Maintain a naturally reproducing population of rainbow trout above the Paria River, to the extent practicable and consistent with the maintenance of viable populations of native fish. Course Purpose: • The purpose of this training course “Fish of the Colorado River” is to provide a general overview of fish located within the Colorado River below Glen Canyon Dam downstream to Lake Mead and linked directly to the GCDAMP. • Also included are brief explanations of management concerns related to the native fish species, as well as species locations. Native Fishes: Colorado River and tributaries between Glen Canyon Dam and Lake Mead Bluehead Sucker • Scientific name: Catostomus discobolus • Status: Species of Special Concern (conservation status may be at risk) • Description: Streamlined with small scales. -
Diatom Flora of Beaver Dam Creek, Washington County, Utah, USA
Great Basin Naturalist Volume 52 Number 2 Article 3 9-22-1992 Diatom flora of Beaver Dam Creek, Washington County, Utah, USA Kurtis H. Yearsley Brigham Young University Samuel R. Rushforth Brigham Young University Jeffrey R. Johansen John Carroll University, University Heights, Ohio Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Yearsley, Kurtis H.; Rushforth, Samuel R.; and Johansen, Jeffrey R. (1992) "Diatom flora of Beaver Dam Creek, Washington County, Utah, USA," Great Basin Naturalist: Vol. 52 : No. 2 , Article 3. Available at: https://scholarsarchive.byu.edu/gbn/vol52/iss2/3 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Great Basin Naturalist 52(2), pp 131-138 DIATOM FLORA OF BEAVER DAM CREEK, WASHINGTON COUNTY, UTAH, USA Kurtis H. Yearslel, Samuel R. Rushforth1, and Jeffrey R. Johansen! ABSTRACT.-The diatom flora ofBeaver Dam Creek, Washington County, Utah, was studied. The study area is in awarm MOjave Desert environment at an elevation between 810 and 850 m. A total of 99 taxa were identified from composite samples taken in the fall, winter, spring, and summer seasons. These taxa are all broadly distributed and no endemic species were encountered. Three new records for the state of Utah were identifted: Gomp!umeis eriense Sky. & Mayer, Navicula clginensis var.lata (M. Perag.) Paa., and Nitzschia-calida Grun. The most important taxa throughout the studyas determined by multiplying percent presence by average relative density (Important Species Index) were Cymbella affinM Katz., Epithemia sorex Katz., Navicula veneta Katz . -
Havasu Canyon Flood Updates
preserving public access to the Colorado River Number Seven Fall, 2008 CRMPUpdate By Jonathan Simon Parties File Opening Briefs in Lawsuit Challenging Grand Canyon National Park’s Colorado River Management Plan Grand Canyon River Runners Association Joins With Grand Canyon River Guides and Colorado Whitewater Association in Filing Amicus Brief Supporting the Plan In January 2008, after the Arizona concessions services that are contrary Federal District Court wholly rejected to applicable law. More specifically, the their challenge to the new Colorado appellants allege that the new plan River Management Plan (CRMP) issued violates the NPS’ obligation to preserve by the National Park Service (NPS) in the “wilderness character” of the river February 2006, the plaintiffs in that corridor because it—like the previous lawsuit—River Runners for Wilderness plan issued in 1989—continues to (RRFW), Rock the Earth, Wilderness allow the use of motorized watercraft, Watch, and Living Rivers—appealed that helicopter passenger exchanges “HAVASU VIEW” court’s ruling to the Ninth Circuit Court and generators. They also allege PAINTING BY KANDEE MCCLAIN of Appeals. Under the appeals court’s that the new plan illegally authorizes In this Issue original scheduling order in the case, concessions services—with respect CRMP UPDATE ............................................................................... 1 briefing was to have been completed to both motorized use and the overall “LEAVE NO TRACE” .......................................................................