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Monday, July 20, 2020 | History

4 edition of The Edwards aquifer and vulnerable species found in the catalog.

The Edwards aquifer and vulnerable species

The Edwards aquifer and vulnerable species

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  • 32 Currently reading

Published by Congressional Research Service, Library of Congress in [Washington, D.C.] .
Written in English

    Subjects:
  • Aquifers -- Texas -- San Antonio Region,
  • Groundwater -- Texas -- San Antonio Region,
  • Endangered species -- United States

  • Edition Notes

    StatementPamela Baldwin ... [et al.].
    SeriesMajor studies and issue briefs of the Congressional Research Service -- 1993, 93-485 ENR.
    ContributionsBaldwin, Pamela., Library of Congress. Congressional Research Service.
    The Physical Object
    FormatMicroform
    Pagination25 p.
    Number of Pages25
    ID Numbers
    Open LibraryOL17743758M
    OCLC/WorldCa31061294

    The Barton Springs segment of the Edwards (Balcones Fault Zone) Aquifer is a prolifi c karst aquifer system containing the fourth largest spring in Texas, Barton Springs. The Barton Springs segment of the Edwards Aquifer supplies drinking water for ~60, people, provides habitat for federally listed endangered salamanders, and sustains the iconic recreational Barton Springs. Vulnerability of Ground Water to Contamination, Edwards Aquifer Recharge Zone, Bexar County, Texas, By Allan K. Clark Abstract The Edwards aquifer, one of the most pro­ ductive carbonate-rock aquifers in the Nation, is composed of the Kainer and Person Formations of the Edwards Group plus the overlying Georgetown by: 8.

    Clear sorting; Clear grouping; Group by Name; Group by Meeting Date; Group by Meeting Date (Month) Group by Meeting Date (Year) Group by Meeting Location. Edwards Aquifer: No Limits Yet aquifer that supports several endangered species, the group attempted to get the U.S. District court to force the largest users to cut their pumping by 20% above.

    Here we use recent (–12) and historical (–) N-species concentrations and NO 3 − isotopic compositions from streams that recharge the aquifer, groundwater wells, and major springs to investigate N dynamics for the San Antonio segment (SAS) and the Barton Springs segment (BSS) of the Edwards aquifer ().We characterize potential impacts of urbanization in the context of long Cited by: AGUA wins victory in lawsuit to protect endangered species. AGUA settled a lawsuit to protect 12 endangered species found only in the Edwards Aquifer and its recharge zone. The settlement with US Fish & Wildlife Service is a major victory for endangered .


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The Edwards aquifer and vulnerable species Download PDF EPUB FB2

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Another endangered species, the Barton Springs Salamander, was also believed to only live in these four springs untilwhen it was discovered in a tributary of Onion Creek near Dripping Springs. These four springs are the primary discharge point for the Barton Springs segment of the Edwards Aquifer.

The Edwards Aquifer is a unique groundwater system and one of the most prolific artesian aquifers in the world. It is one of the greatest natural resources on Earth, serving the diverse agricultural, industrial, recreational, and domestic needs of almost two million users in south central Texas.

Threatened and Endangered Species in the Edwards Aquifer System All of the forms of life living in the aquifer (groundwater system) have adapted to this existence by being colorless and eyeless.

They often have other senses highly developed. the Edwards Aquifer. Like most other subterranean amphipods, this species is unpigmented and lacks eyes. Numerous examples of this species have been collected only from the Edwards Aquifer at Comal Springs in Landa Park, New Braunfels, Texas, and a single specimen was taken at Hueco Springs, Texas in Specimens of this species were col-File Size: KB.

The Edwards Aquifer Authority is a groundwater district, mandated by the Edwards Aquifer Authority Act. The Act grants all of the powers, rights, and privileges necessary to manage, conserve, preserve, and protect the aquifer. 1 Introduction. The Edwards Aquifer in south-central Texas is one of the most productive karst aquifers in the nation.

Covering an area about miles long and from 5 to 40 miles wide (see Figure ), it is the primary source of drinking water for over million people in San Antonio and its surrounding aquifer also supplies irrigation water to thousands of farmers and. Ecological Modeling. The major spring systems of the Edwards Aquifer are home to many plants and animals, including seven federally listed endangered species, one federally listed threatened species, and three vulnerable species for which petitions for addition to the endangered species list have been filed (see Chapter 1).There are many threats to the listed species, including loss of.

Edwards Aquifer Map Viewer. User Guide - This downloadable PDF document explains how to use the tools available in the viewer.; Metadata - The Edwards Aquifer maps come from official printed maps, containing regulatory boundaries based on previous geologic interpretations of the Edwards Aquifer zones—that is, the recharge, transition, and contributing within the transition zones, as defined.

The Edwards Aquifer Authority manages, enhances, and protects the Edwards Aquifer, one of the major groundwater systems in Texas serving approximately 2 mill Views: The Edwards Aquifer is one of the most valuable water resources in the central Texas area.

This aquifer provides water for municipal, industrial, and agricultural uses. A number of cities rely on the aquifer as their only source of drinking water. In the past, the Aquifer has proved to be a reliable source of water through severe droughts. Edwards Aquifer Ecosystem A Treasure at Risk Rapid, unsustainable urbanization threatens to overpump the aquifer.

Comal Springs w San Marcos Springs e-ear 0 20 40 60 80 Total pumpage (thousand acre-ft/year). Edwards Aquifer Authority (EAA), San Antonio, TX. K likes. The Edwards Aquifer Authority manages, enhances, and protects the Edwards Aquifer―a natural resource that provides water to approximately Followers: K.

The Edwards Aquifer literally is the life blood of the Hill Country. In fact, this area would not have grown to what it is today without the aquifer. Cities like San Antonio have long depended on the Edwards Aquifer for water, making it an integral part of the environment and geology of the : Athena Hessong.

Three years ago, the undeclared Edwards Aquifer water war came to an end after a half century of regional conflict that pitted San Antonio and dozens of regional entities against one another in. Inthe Service invited interested parties to discuss approaches to the challenges of aquifer management to balance the region's water needs with those of listed species.

The Edwards Aquifer Recovery Implementation Program (EARIP) was created to understand the needs of the area's growing population, requirements of listed species and the.

1) Aquifer Storage and Recovery (ASR) program: uses the SAWS ASR facility to store water for the EAHCP. - Most effective measure. - Only 5, (Illgner says 6,) acft of 50, acft secured thus far.

Early Europeans first settled along perennial streams sustained by natural spring flows from the Edwards Aquifer (Maclay and Land, ).

Substantial well discharge from the aquifer began in the late 's and and steadily increased fromac-ft in to a record high ofac-ft in   The organizations backing the Edwards Aquifer Recovery Implementation Program agreed on Thursday to develop a Habitat Conservation Plan to protect the Edwards Aquifer and related endangered species.

- The Edwards Aquifer Habitat Conservation Plan (EAHCP) is intended to provide assurance that suitable habitat for covered species will remain in both the San Marcos and Comal Springs, despite lawful water use activities within the Edwards Aquifer region.

The U.S. Fish & Wildlife Service (USFWS) has designated eight species that live in the Edwards Aquifer, the San Marcos 23 pins. Seven Edwards Aquifer species are on the federal Endangered Species List because they are vulnerable to reduced spring flows caused by drought and pumping.

To protect these species, the Edwards Aquifer Authority and four other local entities have created a year Habitat Conservation Plan. This report is the first product of a three-phase File Size: KB.Edwards Aquifer Species 2 Management Guidelines Funds for the production of this leaflet were provided by the U.S.

Fish and Wildlife Service, under Section 6 of the Endangered Species Act. References Texas Water Commission.

Ground-water quality of Texas – an overview of natural and man-affected pp. Edwards Aquifer as the major aquifer in the state most vulnerable to pollution. Little to no filtration is provided as water enters directly into the Aquifer through faults, stream beds, and terrain characterized by uniquely porous Edwards Size: 2MB.