Guidance document for the establishment of critical aquifer recharge area ordinances
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Guidance document for the establishment of critical aquifer recharge area ordinances

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Published by Washington State Dept. of Ecology in [Olympia, Wash.] .
Written in English


  • Wells -- Environmental aspects -- Washington (State),
  • Groundwater -- Washington (State),
  • Artificial groundwater recharge -- Washington (State)

Book details:

Edition Notes

Statementprepared by Kirk V. Cook.
SeriesPublication -- #97-30., Publication (Washington (State). Dept. of Ecology) -- no. 97-30.
ContributionsWashington (State). Dept. of Ecology.
The Physical Object
Paginationvi, 40 p. ;
Number of Pages40
ID Numbers
Open LibraryOL17822513M

Download Guidance document for the establishment of critical aquifer recharge area ordinances


called Critical Aquifer Recharge Areas. The goal of establishing Critical Aquifer Recharge Areas is to protect the functions and values of a community’s drinking water by preventing pollution and maintaining supply. Critical Aquifer Recharge Areas A Critical Aquifer Recharge Area (CARA) is defined by the GMA as “areas with a. A Critical Aquifer Recharge Area (CARA) is defined by the GMA as “areas with a critical recharging effect on aquife rs used for potable water.” The Washington Administrative Code (WAC) Chapter Author: Laurie Morgan. Thurston County Critical Areas Ordinance Update J The following documents represent a partial list of data and best available science. This list is not meant to be exhaustive, and may be added to in the future. This document is intended to provide an index of the science and data that was reviewed and utilized by the Thurston Board of. "Guidelines for Estabilshing Critical Aquifer Recharge Areas" (Cook, ). High = structural fill basin aquifer + more extensive alluvial deposits + h ig er sa lo w d n ty. M ed ium = F w sh al o +b rck q f >15"/y precipitation based on PRISM. Low = Low well density + bedrock aquifer +.

The CARA ordinance was established for preventing degradation, and where possible, enhancing the quality of groundwater for drinking water or business purposes. The CARA review is intended to limit potential contaminants within designated critical aquifer recharge areas. Guidance for the protection and restoration of significant groundwater recharge areas 7 Ecologically Significant Groundwater Recharge Areas (ESGRAs) ESGRAs are identified as areas of land that are responsible for supporting groundwater systems that sustain sensitive features like coldwater streams and wetlands. To establish the ecological. Signifi cant ground water resources include those used by public water wells as well as sole-source aquifers. Critical Aquifer Recharge Areas are mapped based on the geology and physical characteristics of the soils in Thurston County, depth to groundwater, and known aquifers and active groundwater supplies. This document presents a discussion of the design and installation of ground­ water monitoring wells without specific regulatory recommendations. The infor­ mation contained within the document is the product of many experiences, both published and unpublished to date.

Critical Aquifer Recharge Area Goals. 1. Prevent degradation of groundwater quality in the county and improve water quality of aquifers that do not meet state standards. 2. Protect groundwater quality from development impacts. 3. Secure adequate water . An aquifer recharge area critical area report shall be prepared by a qualified professional who is a hydrogeologist, geologist, or engineer, who is the site prior to facility establishment must be abandoned using techniques approved by the Ordinances Pesticide storage and use Chapter RCW, Chapter RCW Sawmills ;. Critical aquifer recharge areas are areas that have been identified as having a critical effect on aquifers used for potable water and as being highly susceptible to groundwater contamination. Island County is a sole source aquifer, meaning that potable water comes only from groundwater. So in this case, a goal of the Critical Areas Ordinance (CAO) is to preserve, protect, and . the vulnerability of the aquifer. Critical aquifer recharge area categories. A critical aquifer recharge area (CARA) is a geographic area with a critical recharging effect on aquifers used for potable water, including areas where an aquifer that is a source of drinking water isFile Size: KB.