Data Series 301

U.S. GEOLOGICAL SURVEY
Data Series 301

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Abbreviations and Acronyms

AB Assembly Bill (through the California State Assembly)
AL action level
CAS Chemical Abstract Service (American Chemical Society)
CSU combined standard uncertainty
E estimated or having a higher degree of uncertainty
GAMA Groundwater Ambient Monitoring and Assessment program
GPS Global Positioning System
HAL-US lifetime health advisory (USEPA)
HPLC high-performance liquid chromatography
LRL laboratory reporting level
LSD land-surface datum
LT-MDL long-term method detection level
MCL-US maximum contaminant level (USEPA)
MCL-CA maximum contaminant level (CDHS)
MD method detection level
MDL method detection limit
MRL minimum reporting level
MU method uncertainty
N Normal (1-gram-equivalent per liter of solution)
na not available
nc sample not collected
NL-CA notification level (CDHS)
NWIS National Water Information System (USGS)
PCFF-GAMA personal computer field forms program designed for GAMA sampling
QC quality control
RPD relative percent difference
RSD relative standard deviation
RSD5 risk-specific dose at 10-5 (USEPA)
SMCL secondary maximum contaminant level (USEPA)
SMCL-CA secondary maximum contaminant level (CDHS)
SMCL-US secondary maximum contaminant level (USEPA)
SOSA Southern Sierra study unit
SOSAFP Southern Sierra study unit flow path
SSMDC sample-specific minimum detectable concentration
TT-US treatment technique (USEPA)
US United States
CDHS California Department of Health Services
USEPA U.S. Environmental Protection Agency
LLNL Lawrence Livermore National Laboratory
MWH Montgomery Watson-Harza
NAWQA National Water Quality Assessment (USGS)
NWQL National Water Quality Laboratory (USGS)
SWRCB State Water Resources Control Board
TCCWD Tehachapi-Cummings County Water District
USGS U.S. Geological Survey
CaCO3 calcium carbonate
CFC chlorofluorocarbon
CO3-2 carbonate
DOC dissolved organic carbon
HCl hydrochloric acid
HCO3- bicarbonate
MTBE methyl tert-butyl ether
NDMA N-nitrosodimethylamine
PCE tetrachloroethene
TCP trichloropropane
TDS total dissolved solids
THM trihalomethane
VOC volatile organic compound
cm3 STP/g cubic centimeters of gas at standard temperature and pressure (0 degrees Celsius and 1 atmosphere of pressure) per gram of water
ft foot (feet)
in inch
L liter
mg milligram
mg/L milligrams per liter (parts per million)
mi mile
mL milliliter
µg/L micrograms per liter (parts per billion)
µL microliter
µm micrometer
pCi/L picocurie per liter
Notes

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:

°F=(1.8×°C)+32

Vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88).

Specific conductance is given in microsiemens per centimeter at 25 degrees Celsius (µS/cm at 25°C).

Concentrations of chemical constituents in water are given either in milligrams per liter (mg/L) or micrograms per liter (µg/L). Milligrams per liter is equivalent to parts per million (ppm) and micrograms per liter is equivalent to parts per billion (ppb).

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