Technical Memoranda

Reports

Staff Information

Search BQS With Google

NADP/NTN

NWQL

Office of Water Quality

Phoenix Project

WRD Publications

WRD Water Data

Acid Rain

Standard Reference Sample (SRS)

Inorganic Blind Sample (IBSP)

Organic Blind Sample (OBSP)

Long-Term Method Detection Level Project (LTMDL)

Blind Blank Project Data (BBP)

Laboratory Evaluation (LEP)

National Field Quality Assurance Program (NFQA)

Precipitation Chemistry Quality Assurance (PCQA)

Sediment Laboratory Quality Assurance (SLQA)

Branch Of Quality Systems Mission -
Science requires consistent collection and reporting of known quality data

• Monitor, assure, and improve the quality of analytical results
• Documentation of field and laboratory methods
• Proficiency Testing
  • Internal and external quality control
  • Single and double blind samples
• Documentation of variability and bias of analytical results for:
  • District Users
  • Laboratory Personnel
  • Multiple use and long-term trends
• Documentation of analytical methods used for:
  • Inorganic Constituents
  • Organic Constituents
  • Biological Constituents

BQS Contact Information
Telephone - Staff List
Fax - (303) 236 1880

Postal Address:
USGS-WRD BQS
DFC, Bldg 95
PO Box 25046, MS 401
Denver, CO 80225

Directions to the BQS Office in Lakewood, CO

BQS Webmaster