Jeffrey Ayers Farrar
Engineers at Arlington Ave, Littleton, CO

License number

Colorado 19950

Issued Date

Nov 22, 1982

Renew Date

Nov 1, 2015

Expiration Date

Oct 31, 2017

Type

Professional Engineer

Address

12253 W Arlington Ave, Littleton, CO 80127

Professional information

Geotechnical Engineer Retired

Position:

Retired at Consultant and Expert Witness

Location:

Littleton, Colorado

Industry:

Civil Engineering

Work:

Consultant and Expert Witness - Residence since Jun 2012 - Retired U S Bureau of Reclamation - Tecnical Service Center Jun 1978 - Jun 2012 - Geotechnical Engineer

Education:

University of Colorado at Denver 1986 - 1990
Master of Science (MS), Geotechnical Engineering Kansas State University 1974 - 1978
Bachelor of Science (BS), Civil Engineering

Interests:

Geotechnical Engineering...Investigation Technology

Honor & Awards:

ASTM – Special Service Award (co-author of ASTM Manual on using ASTM standards for soil Compaction Control Testing of Earthwork) – June 2012 ASTM – Woodland G Shockley Award – Honorary Membership in Committee D-18 2011 ASTM - A. Ivan Johnson Outstanding achievement award – June 2005 ASTM - Standards Development Award - D 6724 - Guide for Installation of Direct Push Ground Water Monitoring Wells – June 2005 ASTM - Special Service Award – Service as Chairman of Subcommittee D-18.02 on Field Sampling and Related Testing of Soils – January 2003 ASTM - Standards Development Award - D 5784 - Guide for Use of Hollow-Stem Augers for Geoenvironmental Exploration and Installation of Water Quality Monitoring Devices – January 2000 ASTM - Special Service Award – Service on Ground Water and Vadose Zone, Direct Push Section – June 1999 ASTM - Standards Development Award - D 5778 Test Method for Electronic Friction Cone and Piezocone Penetration Testing of Soils - January 1997

Method And Apparatus For Selecting A Sand Pack Mesh For A Filter Pack And A Well Casing Slot Size For A Well

US Patent:

6317694, Nov 13, 2001

Filed:

Aug 24, 2000

Appl. No.:

9/645562

Inventors:

Mark L. Kram - Santa Barbara CA
Jeffrey A. Farrar - Littleton CO

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

G01V 338

US Classification:

702 11

Abstract:

A method and apparatus for selecting a filter pack and a well casing slot size for a well which uses soil classification data derived from cone penetrometer test. A user of the method and apparatus utilizes a piezocone or other soil classification sensors to measure soil properties in an area of contaminated soil or non-contaminated soil and then determine the soil type at specific depths within the soil. A multisensor probe generates a laser induced fluorescence intensity plot of the area of soil contamination which is superimposed on a soil boring log identifying the soil type at specific depths within the soil. The soil type for the area of contaminated soil is identified from the load cell data. Contamination within the soil is identified using the laser induced fluorescence intensity plot.