| ICMS |
Industrial Construction Management Svcs., Vacaville, CA |
| ISWT |
Indian Springs Wastewater Treatment Plant (California American Water), Salinas, CA |
| ICAF |
Independent Consultant Associated, Fairbanks, AK |
| IESF |
Impact Environmental Services, Fremont, CA |
| IMCG |
IMC Geologic, Inc., Chico, CA |
| GEOS |
IHS Geotech/CMT, Inc., San Antonio, TX |
| IESU |
Icon Environmental Services, Union City, CA |
| IABC |
Icon Agricultural, LLC, Bakersfield, CA |
| ICFI |
ICF, Irvine, CA |
| ICFR |
ICF Technology, Inc., Richland, WA |
| ICFP |
ICF Kaiser Engineers, Pittsburgh, PA |
| ICFK |
ICF Kaiser Engineers, Boston, MA |
| IBMC |
IBM Corporation, San Jose, CA |
| IBMA |
IBM Almaden Research Center, San Jose, CA |
| ICSD |
I-Cubed Consulting, San Diego, CA |
| HEA |
Hygienetics Environmental, Alameda, CA |
| HESS |
Hygienetics Environmental Services, Inc., Santa Ana, CA |
| HSA |
Hydrosource, Albany, CA |
| HCIN |
Hydrosolutions of California, Inc., Nevada City, CA |
| HLIP |
Hydrologue, Inc., Pasadena, CA |
| HGLD |
HydroGeoLogic, Inc., Denver, CO |
| HGCC |
HydroGeo Consultants, Costa Mesa, CA |
| HTI |
Hydro-Terra, Inc., Columbia, MD |
| HETA |
Hydro-Environmental Technologies, Inc., Albany, NY |
| HGCT |
Hydro Geo Chem Inc., Tucson, AZ |
| HAIE |
Hydro Analysis, Inc., El Cerrito, CA |
| HVNH |
HVN Environmental Service Co., Inc., Huntington Beach, CA |
| HESP |
Hurvitz Environmental, Sebastopol, CA |
| HRCC |
Humboldt Redwood Company, Calpella, CA |
| HCPW |
Humboldt County Department of Public Works, Eureka, CA |
| HBHR |
Humboldt Bay Harbor Recreation & Conservation District (HBHRCD), Eureka, CA |
| HRLM |
Hughes Research Laboratories, Malibu, CA |
| HEIE |
Horizon Environmental, Inc., El Dorado Hills, CA |
| HWIE |
Honeywell, Inc., El Segundo, CA |
| HFAV |
Holguin, Fahan & Associates., Inc., Ventura, CA |
| HFAA |
Holguin, Fahan & Associates., Inc., Tempe, AZ |
| HFAO |
Holguin, Fahan & Associates., Inc., Cypress, CA |
| HFAR |
Holguin, Fahan & Associates., Inc., Colton, CA |
| HFAB |
Holguin, Fahan & Associates., Inc., Bakersfield, CA |
| HKNC |
Holdrege & Kull, Nevada City, CA |
| HCEP |
Hoexter Consulting Eng. Geology, Palo Alto, CA |
| HCGA |
Hoefler Consulting Group, Anchorage, AK |
| HGCL |
HGCL Environmental Scientists and Engineers, Albuquerque, NM |
| HETI |
HETI Services, Inc, Acton, MA |
| HAC |
Hess & Associates, Chico, CA |
| HASC |
Herst & Associates, Inc., St. Charles, MO |
| HSEB |
HerSchy Environmental, Bass Lake, CA |
| HPUD |
Herlong Public Utility District, Herlong, CA |
| HLV |
Herguth Laboratories, Inc., Vallejo, CA |
| HAID |
Henshaw & Associates, Inc., Dublin, CA |
| HWLQ |
Henrici Water Laboratory, Quincy, CA |
| HDRO |
Henningson, Duram & Richardson Engineering, Omaha, NE |
| HENM |
Hennings Brothers Drilling Company, Inc., Modesto, CA |
| HGAH |
Hemphill, Green and Associates, LLC, Hemet, CA |
| HCSD |
Helendale Community Services District, Helendale, CA |
| HEES |
Heilshorn Environmental Eng., El Sorbrante, CA |
| HDRF |
HDR, Inc., Folsom, CA |
| HDRA |
HDR Engineering, Anchorage, AK |
| HMSC |
Hazard Management Consulting, Inc., San Clemente, CA |
| HEIS |
Hayden Environmental, Inc., Santa Barbara, CA |
| HIEK |
Hawaii International Environmental Serv., Kailua, HI |
| HATH |
Hathaway LLC, Bakersfield, CA |
| HESC |
Harza Environmental Services, Inc., Chicago, IL |
| HECO |
Harza Engineering Company of California, Oakland, CA |
| HCIL |
Hart Crowser, Inc., Long Beach, CA |
| HARA |
Hart Crowser, Anchorage, AK |
| HHNC |
Hart & Hickman, Charlotte, NC |
| HREM |
Harrison/Roberts Environmental Management, Los Alamitos, CA |
| HLSR |
Harris & Lee Environmental Sciences, Santa Rosa CA |
| HMCS |
Harrion Marine Centers, Santa Rosa, CA |
| HARO |
Haro Environmental, Inc., San Luis Obispo, CA |
| HECS |
Hargrave Environmental Consulting, Inc., San Diego, CA |
| HRGT |
Hargis & Associates, Tucson, AZ |
| HASD |
Hargis & Associates, Inc., San Diego, CA |
| HAMA |
Hargis & Associates, Inc., Mesa, AZ |
| HAL |
Hargis & Associates, La Jolla, CA |
| HARG |
Hargis & Associates |
| HESH |
Hanover Environmental Services, Inc., Chico, CA |
| HTG |
Handex-Trustfund, Golden, CO |
| HANA |
HANA Resources, Lake Forest, CA |
| NUSH |
Halliburton NUS Environmental Corporation, Oak Ridge, TN |
| HACC |
Haling & Associates, Chico, CA |
| HAIT |
Haley & Aldrich, Inc., Tucson, AZ |
| HASB |
Haley & Aldrich, Inc., Santa Barbara, CA |
| HAIJ |
Haley & Aldrich, Inc., San Jose, CA |
| HAIS |
Haley & Aldrich, Inc., San Diego, CA |
| HAIO |
Haley & Aldrich, Inc., Oakland, CA |
| HAIB |
Haley & Aldrich, Inc., Brea, CA |
| HAIP |
Hahn and Associates, Inc., Portland, OR |
| HGWL |
H2OGEOL A Groundwater Consultancy, Livermore, CA |
| HMPL |
H.M. Pitt Labs, Inc., National City, CA |
| HEMC |
H.E.M.C. Environmental Management Corp., El Cajon, CA |
| HGCE |
H+GCL, Emeryville, CA |
| HPLE |
H&P Mobile Geochemistry, Inc., Carlsbad, CA |
| HHSE |
H and H Safety and Environmental, Vancouver, WA |
| GWFP |
GWF Power Systems, Pittsburg, CA |
| GSIW |
GSI Water Solutions, Santa Barbara, CA |
| GSIM |
GSI Water Solutions, Inc., Morro Bay, CA |
| GSIO |
GSI Environmental Inc., Oakland, CA |
| GSIE |
GSI Environmental Inc., Newport Beach, CA |