| ESBR |
E. S. Babcock & Sons, Inc., Riverside, CA |
| ESC |
Environmental Science Corporation, Mount Juliet, TN |
| ESMT |
Eurofins Specialty Metals Testing, Tacoma, WA |
| ESR |
Eberline Services, Richmond, CA |
| ESTI |
Environmental Support Technologies, Inc., Irvine, CA |
| ETCS |
ETC, Santa Rosa, CA |
| EUCT |
Eurofins Calscience, Tustin, CA |
| EXOV |
EXOVA, Santa Fe Springs, CA |
| FAED |
Frontier Analytical, El Dorado Hills, CA |
| FBIS |
Friedman & Bruya, Inc., Seattle, WA |
| FGIS |
Frontier Geosciences, Inc., Seattle, WA |
| FGL |
Fruit Growers Laboratory, Inc., Stockton, CA |
| FGLC |
Fruit Growers Laboratory, Inc., Chico, CA |
| FGLE |
FGL Environmental, Santa Paula, CA |
| FGLS |
Fruit Growers Laboratory, Inc., San Luis Obispo, CA |
| FGLV |
Fruit Growers Laboratory, Inc., Visalia, CA |
| FORA |
Forensic Analytical |
| FPAO |
Field Portable Analytical, Inc., Orangevale, CA |
| GALM |
GeoAnalytical Laboratories, Inc., Modesto, CA |
| GBLR |
Great Basin Laboratories, Inc., Reno, NV |
| GCAL |
Gulf Coast Analytical Lab, Baton Rouge, LA |
| GELC |
General Engineering Laboratories, Inc., Charleston, SC |
| GENC |
GTEL Environmental Labs, Inc., Concord, CA |
| GGHO |
G.G. Hatch Isotope Laboratories, Ottawa, Ontario, Canada |
| GLES |
Galson Laboratories, E. Syracuse, NY |
| GPLG |
GPL Laboratories, LLLP, Gaithersburg, MD |
| H2MM |
H2M Labs, Inc., Melville, NY |
| HALB |
Halcyon Laboratories, Bakersfield, CA |
| HEAA |
Hall Environmental Analysis Laboratory, Albuquerque, NM |
| HEGS |
Hartman Environmental Geoscience, Solana Beach, CA |
| HGSL |
HydroGeo Spectrum Lab, Los Angeles, CA |
| HLV |
Herguth Laboratories, Inc., Vallejo, CA |
| HMPL |
H.M. Pitt Labs, Inc., National City, CA |
| HPLE |
H&P Mobile Geochemistry, Inc., Carlsbad, CA |
| HWLQ |
Henrici Water Laboratory, Quincy, CA |
| IDBS |
Idaho Sate University, Dept of Biological Sciences, Pocatello, ID |
| IELA |
InterPhase Environmental, Inc., Los Angeles, CA |
| ILCI |
Isotech Laboratories, Inc., Champaign, IL |
| JEIF |
Jones Environmental, Inc., Fullerton, CA |
| JLAM |
JL Analytical Services, Modesto, CA |
| JMLF |
JM Lord, Inc., Fresno, CA |
| KESM |
Kemron Environmental Services, Marietta, OH |
| KIC |
KIC Lab, Prudhoe Bay, AK |
| KIFF |
Kiff Analytical LLC, Davis, CA |
| KLIA |
Kinnetic Laboratories, Inc., Anchorage, AK |
| KLIC |
Kinnetic Laboratories, Inc., Carlsbad, CA |
| KLIL |
Kinnetic Laboratories, Inc., Lahhaina, HI |
| KLIS |
Kinnetic Laboratories, Inc., Santa Cruz, CA |
| KLR |
Kensington Laboratories, Richmond, CA |
| KMO |
Kinder Morgan, Orange, CA |
| KPIS |
KPrime, Inc., Santa Rosa, CA |
| LAB1 |
Laboratory 1 |
| LAB2 |
Laboratory 2 |
| LADW |
LA City Department Of Water And Power (LADWP), Pasadena, CA |
| LAL |
Lockheed Analytical Laboratory, Las Vegas, NV |
| LASL |
Los Alamos Scientific Laboratory, Los Alamos, NM |
| LATP |
LA Testing, South Pasadena, CA |
| LCLW |
LifeChem Laboratory Services, Woodland Hills, CA |
| LCMS |
LLNL Chemistry & Materials Sciences Analytical Lab, Livermore, CA |
| LICP |
ICP MS Facility, LLNL, Livermore, CA |
| LL |
Lancaster Laboratories, Inc., Lancaster, PA |
| LLNL |
Lawrence Livermore National Laboratory, Livermore, CA |
| LOWR |
Los Osos Water Recycling Facility Laboratory, Los Osos, CA |
| LTL |
Laucks Testing Lab, Inc. |
| LWLL |
Lodi Wine Laboratories, Lodi, CA |
| MACN |
Maxxam Analytical, Inc., Cheektowaga, NY |
| MACS |
MACS Lab, Inc., Grass Valley, CA |
| MBAM |
Monterey Bay Analytical Services, Inc., Monterey, CA |
| MBLM |
Microbac, Laboratories, Inc., Marietta, OH |
| MCAP |
McCampbell Analytical, Pittsburg, CA |
| MCLL |
Mobile Chem Labs, Inc., Lafayette, CA |
| MCWM |
Mammoth Community Water District, Mammoth Lakes, CA |
| MEC |
MEC Analytical Systems, Inc., Carlsbad, CA |
| MHDL |
Monterey County Health Department Laboratory, Salinas, CA |
| MICA |
Microbac, Arcata, CA |
| MIKT |
Microbial Insights, Inc., Knoxville, TN |
| MLIC |
Michelson Laboratories, Inc., Commerce, CA |
| MLIT |
Midway Laboratory, Inc., Taft, CA |
| MOLE |
Mobile One Laboratories, Inc., Escondido, CA |
| MOWM |
Monterey One Water, Monterey, CA |
| MPP |
Microseeps, Pittsburgh, PA |
| MSLV |
MID-STATE Laboratory LLC, Visalia, CA |
| MSSL |
Mountain States Analytical, Salt Lake City, UT |
| MTAF |
Moore Twining Associates, Inc., Fresno, CA |
| MWHM |
MWH Labs, Monrovia, CA |
| MWLP |
Montgomery Watson Laboratories, Pasadena, CA |
| NA |
Not Applicable |
| NCAB |
North Creek Analytical, Bothell, WA |
| NCAC |
North Creek Analytical, Bend, OR |
| NCAP |
North Creek Analytical, Beaverton, OR |
| NCAS |
North Creek Analytical, Spokane, WA |
| NCLA |
North Coast Laboratories, Arcata, CA |
| NELL |
NEL Laboratories, Inc., Las Vegas, NV |
| NLSC |
Northern Lake Service, Crandon, WI |
| NRES |
Navy Regional Environmental Lab, San Diego, CA |
| NSEF |
North State Environmental, South San Francisco, CA |
| NSLF |
North State Labs, South San Francisco, CA |
| NTL |
Northern Testing Laboratories, Anchorage, AK |
| NTLF |
Northern Testing Laboratories, Fairbanks, AK |
| NWCC |
Northwest Colorado Consultants, Inc., Steamboat Springs, CO |