| HEA |
Hygienetics Environmental, Alameda, CA |
| HECO |
Harza Engineering Company of California, Oakland, CA |
| HECS |
Hargrave Environmental Consulting, Inc., San Diego, CA |
| HEES |
Heilshorn Environmental Eng., El Sorbrante, CA |
| HEIE |
Horizon Environmental, Inc., El Dorado Hills, CA |
| HEIS |
Hayden Environmental, Inc., Santa Barbara, CA |
| HEMC |
H.E.M.C. Environmental Management Corp., El Cajon, CA |
| HENM |
Hennings Brothers Drilling Company, Inc., Modesto, CA |
| HESC |
Harza Environmental Services, Inc., Chicago, IL |
| HESE |
Harding ESE, Carson City, NV |
| HESH |
Hanover Environmental Services, Inc., Chico, CA |
| HESI |
Harding ESE, Irvine, CA |
| HESM |
Harding ESE, Martinez, CA |
| HESN |
Harding ESE, Novato, CA |
| HESO |
Harding ESE, Oakland, CA |
| HESP |
Hurvitz Environmental, Sebastopol, CA |
| HESR |
Harding ESE, Reno, NV |
| HESS |
Hygienetics Environmental Services, Inc., Santa Ana, CA |
| HETA |
Hydro-Environmental Technologies, Inc., Albany, NY |
| HETI |
HETI Services, Inc, Acton, MA |
| HFAA |
Holguin, Fahan & Associates., Inc., Tempe, AZ |
| HFAB |
Holguin, Fahan & Associates., Inc., Bakersfield, CA |
| HFAO |
Holguin, Fahan & Associates., Inc., Cypress, CA |
| HFAR |
Holguin, Fahan & Associates., Inc., Colton, CA |
| HFAV |
Holguin, Fahan & Associates., Inc., Ventura, CA |
| HGAH |
Hemphill, Green and Associates, LLC, Hemet, CA |
| HGCC |
HydroGeo Consultants, Costa Mesa, CA |
| HGCE |
H+GCL, Emeryville, CA |
| HGCL |
HGCL Environmental Scientists and Engineers, Albuquerque, NM |
| HGCT |
Hydro Geo Chem Inc., Tucson, AZ |
| HGLD |
HydroGeoLogic, Inc., Denver, CO |
| HGWL |
H2OGEOL A Groundwater Consultancy, Livermore, CA |
| HHNC |
Hart & Hickman, Charlotte, NC |
| HHSE |
H and H Safety and Environmental, Vancouver, WA |
| HIEK |
Hawaii International Environmental Serv., Kailua, HI |
| HKNC |
Holdrege & Kull, Nevada City, CA |
| HLA |
Harding Lawson Associates, Anchorage, AK |
| HLAA |
Harding Lawson Associates, Aiea, HI |
| HLAC |
Harding Lawson Associates, Concord, CA |
| HLAD |
Harding Lawson Associates, Denver, CO |
| HLAN |
Harding Lawson Associates, Novato, CA |
| HLAS |
Harding Lawson Associates, San Francisco, CA |
| HLIP |
Hydrologue, Inc., Pasadena, CA |
| HLSR |
Harris & Lee Environmental Sciences, Santa Rosa CA |
| HLTH |
California State Health Lab, CA |
| HLV |
Herguth Laboratories, Inc., Vallejo, CA |
| HMCS |
Harrion Marine Centers, Santa Rosa, CA |
| HMPL |
H.M. Pitt Labs, Inc., National City, CA |
| HMSC |
Hazard Management Consulting, Inc., San Clemente, CA |
| HPLE |
H&P Mobile Geochemistry, Inc., Carlsbad, CA |
| HPUD |
Herlong Public Utility District, Herlong, CA |
| HRCC |
Humboldt Redwood Company, Calpella, CA |
| HREM |
Harrison/Roberts Environmental Management, Los Alamitos, CA |
| HRGT |
Hargis & Associates, Tucson, AZ |
| HRLM |
Hughes Research Laboratories, Malibu, CA |
| HSA |
Hydrosource, Albany, CA |
| HSEB |
HerSchy Environmental, Bass Lake, CA |
| HTG |
Handex-Trustfund, Golden, CO |
| HTI |
Hydro-Terra, Inc., Columbia, MD |
| HVNH |
HVN Environmental Service Co., Inc., Huntington Beach, CA |
| HWIE |
Honeywell, Inc., El Segundo, CA |
| HWLQ |
Henrici Water Laboratory, Quincy, CA |
| IABC |
Icon Agricultural, LLC, Bakersfield, CA |
| IBMA |
IBM Almaden Research Center, San Jose, CA |
| IBMC |
IBM Corporation, San Jose, CA |
| ICAF |
Independent Consultant Associated, Fairbanks, AK |
| ICES |
Innovative & Creative Env. Solutions (ICES), Emeryville, CA |
| ICFI |
ICF, Irvine, CA |
| ICFK |
ICF Kaiser Engineers, Boston, MA |
| ICFP |
ICF Kaiser Engineers, Pittsburgh, PA |
| ICFR |
ICF Technology, Inc., Richland, WA |
| ICIL |
Integral Consulting Inc., Larkspur, CA |
| ICMS |
Industrial Construction Management Svcs., Vacaville, CA |
| ICRC |
Integrated Concept Research Corporation, Eagle River, AK |
| ICSC |
Italix Company, Inc., Santa Clara, CA |
| ICSD |
I-Cubed Consulting, San Diego, CA |
| ICSF |
Integral Consulting Inc., San Francisco, CA |
| ICSW |
Innovative Construction Solutions, Inc., Westminster, CA |
| IEEA |
Insight Environmental Engineering Const. Inc., Anaheim, CA |
| IEES |
Insight Environmental Engineering Const. Inc., Sacramento, CA |
| IEIC |
Iris Environmental, Irvine, CA |
| IELA |
InterPhase Environmental, Inc., Los Angeles, CA |
| IEM |
Island Energy, Mare Island, CA |
| IEO |
Iris Environmental, Oakland, CA |
| IERW |
Innovative Environmental Remediation, Inc., Walnut Creek, CA |
| IESE |
Innovative Environmental Solutions, Encinitas, CA |
| IESF |
Impact Environmental Services, Fremont, CA |
| IESI |
Innovative Engineering Solutions, Inc., San Francisco, CA |
| IESL |
Integrated Enviromental Services, Inc., Lake Forest, CA |
| IESU |
Icon Environmental Services, Union City, CA |
| IEUA |
Inland Empire Utilities Agency, Chino, CA |
| IGO |
International Geologic, Oakland, CA |
| IMCG |
IMC Geologic, Inc., Chico, CA |
| INFT |
Inframark, Tracy, CA |
| INRS |
Infineon Raceway, Sonoma, CA |
| INSO |
INSITU Technologies, Orlando, FL |
| IPCI |
Integrated Performance Consultants, Irvine, CA |
| IPSI |
Intertek-PSI, Santa Fe Springs, CA |
| IRCS |
IRC Environmental Consulting, San Jose, CA |
| IRWD |
Irvine Ranch Water District, Los Alisos Water Reclamation Plant, Lake Forest, CA |