197 Certified Water Testing Labs in California
197 laboratories from California State Water Resources Control Board's certified-laboratory list, 135 of them located in California. Compare the ones near you on phone number, certificate number and certified scope before you send a sample.
135 certified laboratories located in California
Across 93 cities. Closest is usually cheapest: most labs need the sample within 24-30 hours of collection, and courier or overnight shipping is billed on top of the test.
Anaheim, California (2)
AIH Laboratory, Inc.
2556 W. Woodland Drive
Anaheim, CA 92801
Certificate 3070
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Onterris Laboratories, LLC - Anaheim
2532 E. Cerritos Avenue
Anaheim, CA 92806
Certificate 3150
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Anderson, California (1)
PEL Laboratories LLC.
5200 Industrial Way, Suite F
Anderson, CA 96007
Certificate 3109
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Arcata, California (1)
Microbac Laboratories, Inc. - Arcata
5680 West End Road
Arcata, CA 95521
Certificate 1247
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Bakersfield, California (3)
BSK Associates - Bakersfield Analytical Laboratory
4820 Rosedale Lane
Bakersfield, CA 93314
Certificate 1180-S3
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical Services, LLC dba BC Laboratories, Inc.
4100 Atlas Court
Bakersfield, CA 93308
Certificate 1186
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Zalco Laboratories, Inc.
4309 Armour Avenue
Bakersfield, CA 93308
Certificate 2791
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Brawley, California (1)
Brawley Analytical, Inc.
104 S. 8th Street
Brawley, CA 92227
Certificate 3098
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Burlingame, California (2)
Eurofins Built Environment Testing West-Burlingame
111 Anza Boulevard, Suite 122
Burlingame, CA 94010
Certificate 3094
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Garratt-Callahan Laboratory
50 Ingold Road
Burlingame, CA 94010
Certificate 1226
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Camarillo, California (1)
Camrosa Water District Wastewater Laboratory
1900 S. Lewis Rd.
Camarillo, CA 93012
Certificate 1638-S1
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Carson, California (1)
SGS Forensic Laboratories
20535 Belshaw Avenue
Carson, CA 90746
Certificate 1366
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Cerritos, California (2)
Alpha Scientific Corporation
16760 Gridley Road
Cerritos, CA 90703
Certificate 3007
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
ASSET Laboratories
11110 Artesia Boulevard, Suite B
Cerritos, CA 90703
Certificate 2921
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Chico, California (1)
Fruit Growers Laboratory, Inc.
563 East Lindo Avenue
Chico, CA 95926
Certificate 2670
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Chino, California (1)
Western Analytical Laboratories, Inc.
14125 Telephone Ave. Ste 7
Chino, CA 91710
Certificate 1559
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Chino Hills, California (1)
ATEL, LLC
5817 Pine Avenue, Suite B-2
Chino Hills, CA 91709
Certificate 2971
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
City of Industry, California (1)
Weck Laboratories, Inc.
14859 East Clark Avenue
City of Industry, CA 91745
Certificate 1132
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Clovis, California (1)
SGS North America, Inc.
908 North Temperance Avenue
Clovis, CA 93611
Certificate 1312
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Commerce, California (1)
Michelson Laboratories, Inc.
6280 Chalet Drive
Commerce, CA 90040
Certificate 1198
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Compton, California (1)
World Oil Recycling
2000 North Alameda Street
Compton, CA 90222
Certificate 2037
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Costa Mesa, California (1)
MBC Aquatic Sciences
3000 Red Hill Avenue
Costa Mesa, CA 92626
Certificate 2762
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Cypress, California (1)
Food Microbiological Laboratories, Inc.
10653 Progress Way
Cypress, CA 90630
Certificate 2753
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Davis, California (1)
AQUA-Science LLC
630 Cantrill Drive
Davis, CA 95618
Certificate 2205
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
El Dorado Hills, California (2)
Ceres Analytical Laboratory, Inc.
4919 Windplay Drive, Suite 1
El Dorado Hills, CA 95762
Certificate 3046
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Onterris Laboratories, LLC
1104 Windfield Way
El Dorado Hills, CA 95762
Certificate 2892
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
El Segundo, California (1)
Anachem Laboratories, LLC
140 Standard Street
El Segundo, CA 90245
Certificate 1164
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Elk Grove, California (1)
Alpha Analytical Laboratories, Inc.
9090 Union Park Way, Suite 113
Elk Grove, CA 95624
Certificate 2922
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Emeryville, California (1)
Eurofins Built Environment Testing West, LLC
5900 Hollis Street, Suite M
Emeryville, CA 94608
Certificate 1037
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Escalon, California (1)
Central Valley Laboratories
1643 3rd Street
Escalon, CA 95230
Certificate 3013
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Fairfield, California (2)
Napa-Solano-Yolo-Marin Public Health Laboratory
2201 Courage Drive
Fairfield, CA 94533
Certificate 2396
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pacific EcoRisk
2250 Cordelia Road
Fairfield, CA 94534
Certificate 2085
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Folsom, California (1)
Eurofins Built Environment Testing West - Sacramento, CA
180 Blue Ravine Rd.
Folsom, CA 95630
Certificate 3120
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Fremont, California (1)
AEMTEK, Inc
466 Kato Terrace
Fremont, CA 94539
Certificate 2607
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Fresno, California (3)
BSK Associates
687 North Laverne Avenue
Fresno, CA 93727
Certificate 1180
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Dellavalle Laboratory, Inc.
1910 West McKinley Avenue, Suite 110
Fresno, CA 93728
Certificate 1595
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Moore Twining Associates, Inc.
2527 Fresno Street
Fresno, CA 93721
Certificate 1371
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Gilroy, California (1)
CM Analytical, Inc.
6700 Brem Lane Suite10
Gilroy, CA 95020
Certificate 1423
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Glendale, California (1)
Eurofins Built Environment Testing West - Glendale, CA
1010 N. Central Avenue Suite 460
Glendale, CA 91202
Certificate 3065
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Grand Terrace, California (1)
Clinical Laboratory of San Bernardino, Inc.
21881 Barton Road
Grand Terrace, CA 92313
Certificate 1088
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Grass Valley, California (1)
Cranmer Engineering, Inc.
1188 East Main Street
Grass Valley, CA 95945
Certificate 1936
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Hayward, California (1)
SGS North America
19743 Cabot Rd.
Hayward, CA 94545
Certificate 1202
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Hesperia, California (1)
Geo-Monitor, Inc
17152 Darwin Street
Hesperia, CA 92345
Certificate 2691
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Huntington Beach, California (1)
LA Testing
5431 Industrial Drive
Huntington Beach, CA 92649
Certificate 1406
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Independence, California (1)
Inyo County Water Lab
168 N. Edwards Street
Independence, CA 93526
Certificate 1680
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Irvine, California (1)
Environmental Support Technologies
8 Goodyear, Suite 125
Irvine, CA 92618
Certificate 2767
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Jackson, California (1)
49er Water Laboratory
245 New York Ranch Road, Suite A
Jackson, CA 95642
Certificate 3036
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Kettleman City, California (1)
Chemical Waste Management, Inc.
35251 Old Skyline Road
Kettleman City, CA 93239
Certificate 1669
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Kingsburg, California (1)
Safe Food Alliance
2037 Morgan Drive
Kingsburg, CA 93631
Certificate 2062
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Laguna Hills, California (1)
Sierra Analytical Labs, Inc.
26052 Merit Circle Suite 104
Laguna Hills, CA 92653
Certificate 3110
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Lake Forest, California (1)
SunStar Laboratories, Inc.
25712 Commercentre Drive
Lake Forest, CA 92630
Certificate 2250
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Livermore, California (1)
Alpha Analytical Laboratories, Inc.
262 Rickenbacker Circle, Suite 35
Livermore, CA 94551
Certificate 2728
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Lodi, California (1)
Lodi Wine Laboratories
710 S. Beckman Road, Suite A
Lodi, CA 95240
Certificate 3078
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Lompoc, California (1)
Clinical Laboratory of San Bernardino II
516 North 8th Street,
Lompoc, CA 93436
Certificate 1678
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Long Beach, California (2)
Applied Microbiological Services (AMS)
1538 West Gaylord Street
Long Beach, CA 90813
Certificate 1257
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Moore Institute for Plastic Pollution Research
120 N Marina Dr
Long Beach, CA 90803
Certificate 3104
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Los Angeles, California (2)
1 Laboratories, Inc.
2520 North San Fernando Road, Unit A
Los Angeles, CA 90065
Certificate 3112
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Positive Lab Service
781 East Washington Boulevard
Los Angeles, CA 90021
Certificate 1131
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Milpitas, California (1)
Torrent Laboratory, Inc
1652 Watson Ct.
Milpitas, CA 95035
Certificate 1991
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Modesto, California (2)
AEMTEK, INC.
4345 Spyres Way
Modesto, CA 95356
Certificate 2607-S1
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Institute of Environmental Health, Inc. dba IEH-JL Analytical
4100 Bangs Ave.
Modesto, CA 95356
Certificate 3130
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Monterey, California (1)
Monterey Bay Analytical Services, Inc.
4 Justin Court, Suite D
Monterey, CA 93940
Certificate 2385
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Morgan Hill, California (1)
Bracewell Engineering, Inc.
155 Mast Street, # 114
Morgan Hill, CA 95037
Certificate 3019
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Napa, California (1)
Caltest Analytical Laboratory
1885 North Kelly Road
Napa, CA 94558
Certificate 1664
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
National City, California (1)
Metropolitan Solutions
2403 Hoover Avenue, Suite G
National City, CA 91950
Certificate 2985
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Oakland, California (1)
Asbestos TEM Laboratories, Inc
3431 Ettie Street
Oakland, CA 94608
Certificate 1866
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Ontario, California (1)
A & R Laboratories, Inc.
1650 S. Grove Ave, Suite C
Ontario, CA 91761
Certificate 2789
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Orange, California (2)
Envirocheck, Inc.
2211 West Orangewood Avenue
Orange, CA 92868
Certificate 2723
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Onterris Laboratories, LLC
931 West Barkley Avenue
Orange, CA 92868
Certificate 1338
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Petaluma, California (1)
Alpha Analytical Laboratories Inc. - North Bay
737 Southpoint Blvd. Suite D
Petaluma, CA 94952
Certificate 2303
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pittsburg, California (1)
McCampbell Analytical, Inc.
1534 Willow Pass Road
Pittsburg, CA 94565
Certificate 1644
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pomona, California (3)
Enviro-Chem, Inc.
1214 East Lexington Avenue
Pomona, CA 91766
Certificate 1555
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Built Environment Testing West - Pomona, CA
931 Corporate Center Drive
Pomona, CA 91768
Certificate 3083
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Pomona
941 Corporate Center Drive
Pomona, CA 91768
Certificate 2813
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Rancho Cordova, California (2)
California Laboratory Services
3249 Fitzgerald Road
Rancho Cordova, CA 95742
Certificate 1233
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
MicroTest Laboratories, Inc.
3110 Gold Canal Drive, Suite A
Rancho Cordova, CA 95632
Certificate 2974
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Rancho Dominguez, California (1)
JK BioScience Inc.
1926 E. Gladwick Street
Rancho Dominguez, CA 90220
Certificate 2968
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Redding, California (1)
Pace Analytical Services, LLC - Redding
2218 Railroad Avenue
Redding, CA 96001
Certificate 1677
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Riverside, California (1)
Babcock Laboratories, Inc.
6100 Quail Valley Court
Riverside, CA 92507
Certificate 2698
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Sacramento, California (4)
ASSET Laboratories
1170 National Drive, Suite 100
Sacramento, CA 95834
Certificate 3134
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Bend Genetics LLC
107 Scripps Drive, Suite 210
Sacramento, CA 95825
Certificate 3127
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Continental Water Laboratory
8631 Younger Creek Drive
Sacramento, CA 95828
Certificate 2955
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Sparger Technology, Inc.
3738 Bradview Drive
Sacramento, CA 95827
Certificate 1614
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Salinas, California (1)
Monterey County Consolidated Environmental Laboratory
1270 Natividad Road, Room 118
Salinas, CA 93906
Certificate 1395
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Carlos, California (1)
Dysert Environmental, Inc.
955 East San Carlos Avenue, Suite B
San Carlos, CA 94070
Certificate 2764
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Diego, California (8)
Analytical Environmental Lab, LLC
8222 Vickers Street, Suite 110
San Diego, CA 92111
Certificate 3115
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
EMSL Analytical, Inc.
7725 Convoy Court
San Diego, CA 92111
Certificate 2713
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Environmental Laboratory Network, Inc.
3440 El Cajon Blvd.
San Diego, CA 92104
Certificate 3116
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Built Environment Testing West-San Diego, CA
9445 Farnham St., Suite 103
San Diego, CA 92123
Certificate 3069
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
H2O Molecular
5752 Oberlin Drive, Suite 107
San Diego, CA 92121
Certificate 3121
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Nautilus Environmental, Inc.
4340 Vandever Avenue
San Diego, CA 92120
Certificate 1802
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
WSP Microbiological & Molecular Services Laboratory
4905 Morena Blvd. Suite 1304
San Diego, CA 92117
Certificate 3133
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
WSP USA Inc.
4905 Morena Blvd., Suite 1304
San Diego, CA 92117
Certificate 3010
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Fernando, California (1)
Pat-Chem Laboratories
1824 First Street
San Fernando, CA 91340
Certificate 1531
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Francisco, California (1)
Cel Analytical, Inc.
82 Mary Street, Suite 2
San Francisco, CA 94103
Certificate 2647
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Jose, California (2)
Clean Harbors San Jose, LLC
1021 Berryessa Road
San Jose, CA 95133
Certificate 2550
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Datalab
1893 Concourse Drive
San Jose, CA 95131
Certificate 2781
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Leandro, California (1)
EMSL Analytical Inc.
464 McCormick Street
San Leandro, CA 94577
Certificate 1620
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Luis Obispo, California (3)
Abalone Coast Analytical, Inc.
141 Suburban Road, Suite C-1
San Luis Obispo, CA 93401
Certificate 2661
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
County of San Luis Obispo Public Health Laboratory
2191 Johnson Avenue
San Luis Obispo, CA 93401
Certificate 2114
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Fruit Growers Laboratory, Inc.
3442 Empresa Drive, Suite D
San Luis Obispo, CA 93401
Certificate 2775
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
San Mateo, California (1)
San Mateo County Public Health Laboratory
225 37th Avenue Building A First Floor
San Mateo, CA 94403
Certificate 1591
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Santa Barbara, California (1)
Montecito Sanitary District Laboratory
1042 Monte Cristo Lane
Santa Barbara, CA 93108
Certificate 2957
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Santa Fe Springs, California (1)
Jones Environmental, Inc.
10260 Matern Place
Santa Fe Springs, CA 90670
Certificate 2882
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Santa Maria, California (1)
Oilfield Environmental & Compliance Inc. (OEC)
307 Roemer Way, Suite 300
Santa Maria, CA 93454
Certificate 2438
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Santa Paula, California (1)
Fruit Growers Laboratory, Inc.
853 Corporation Street
Santa Paula, CA 93060
Certificate 1573
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Santa Rosa, California (2)
Brelje and Race Laboratories, Inc.
425 South E Street
Santa Rosa, CA 95404
Certificate 1243
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
K Prime, LLC.
3621 Westwind Boulevard
Santa Rosa, CA 95403
Certificate 1532
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Signal Hill, California (5)
Advanced Technology Laboratories
3275 Walnut Avenue
Signal Hill, CA 90755
Certificate 3101
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Alpha Analytical Laboratories, Inc. - Los Angeles
1250 E. 29th St.
Signal Hill, CA 90755
Certificate 3091
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
AQ Environmental Laboratories, LLC
1508 East 33rd Street
Signal Hill, CA 90755
Certificate 2823
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Performance Analytical Laboratories, Inc.
2702 East Willow Street
Signal Hill, CA 90755
Certificate 2960
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Strata -Analysts Group, Inc.
3302 Industry Drive
Signal Hill, CA 90755
Certificate 2052
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
South Pasadena, California (1)
EMSL Analytical, Inc. (LA Testing)
520 Mission Street
South Pasadena, CA 91030
Certificate 2283
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Stockton, California (2)
Fruit Growers Laboratory, Inc.
2500 Stagecoach Road
Stockton, CA 95215
Certificate 1563
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Precision Enviro-Tech
3935 N. Coronado Avenue
Stockton, CA 95204
Certificate 3141
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Thousand Oaks, California (1)
Optimal Technology, LLC
1667 Crossbridge Place
Thousand Oaks, CA 91362
Certificate 2779
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Torrance, California (1)
EMAX Laboratories, Inc.
3051 Fujita St.
Torrance, CA 90505
Certificate 2672
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Tulare, California (1)
Sierra Dairy Laboratory
432 North 'O' Street
Tulare, CA 93274
Certificate 1384
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Turlock, California (2)
Certified Laboratories - Turlock
3241 Liberty Square Parkway
Turlock, CA 95380
Certificate 3128
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Microbac Laboratories, Inc. - Turlock
2300 Maryann Dr.
Turlock, CA 95380
Certificate 2585
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Tustin, California (4)
Alliance Technical Group, LLC - Tustin
3002 Dow Avenue, Suite 532
Tustin, CA 92780
Certificate 2576
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Built Environment Testing West -Tustin, CA
2841 Dow Avenue, Suite #300
Tustin, CA 92780
Certificate 3047
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Microbiology
2841 Dow Avenue, Suite 400
Tustin, CA 92780
Certificate 3114
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Tustin
2841 Dow Avenue, Suite 100
Tustin, CA 92780
Certificate 3082
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Twain Harte, California (1)
Precision Enviro-Tech
18843 Fir Dr
Twain Harte, CA 95383
Certificate 3141-S1
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Ukiah, California (1)
Alpha Analytical Laboratories, Inc. - Ukiah
208 Mason Street
Ukiah, CA 95482
Certificate 1551
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Ventura, California (3)
Aquatic Bioassay & Consulting Laboratories, Inc.
29 North Olive Street
Ventura, CA 93001
Certificate 1907
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Aquatic Testing Laboratories
4350 Transport Street, Unit 107
Ventura, CA 93003
Certificate 1775
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Capco Analytical Services
2978 Seaborg Avenue, Unit 4
Ventura, CA 93003
Certificate 2332
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Visalia, California (1)
Fruit Growers Laboratory, Inc.
9411 West Goshen Avenue
Visalia, CA 93291
Certificate 2810
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Vista, California (2)
Alpha Analytical Laboratories, Inc. - San Diego
980 Park Center, Suite C
Vista, CA 92081
Certificate 3055
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Applied Industrial Microbiology, Inc.
2321 South Melrose Drive
Vista, CA 92081
Certificate 2952
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
West Sacramento, California (1)
Eurofins Sacramento
880 Riverside Parkway
West Sacramento, CA 95605
Certificate 2897
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Woodland, California (1)
Denele Analytical, Inc.
40 N. East Street, Suite A and B
Woodland, CA 95776
Certificate 3088
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
62 more California-certified laboratories located in another state
California certifies these laboratories, but they are not in California. They mail you a kit and you ship the sample back, so turnaround includes transit both ways.
EMC Labs, Inc.
9830 South 51st Street, Ste B109
Phoenix, AZ 85044
Certificate 2512
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
EMSL Analytical, Inc.
3356 West Catalina Drive
Phoenix, AZ 85017
Certificate 2761
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SGS AXYS Analytical Services Ltd.
2045 Mills Road West
Sidney, BC
Certificate 2911
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Bureau Veritas Canada (2019) Inc.
6740 Campobello Road
Mississauga, Ontario, CN
Certificate 2923
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Denver
4955 Yarrow Street
Arvada, CO 80002
Certificate 2513
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SGS North America, Inc. - Wheat Ridge
4036 Youngfield Street
Wheat Ridge, CO 80033
Certificate 3076
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
TRC Environmental Corporation
21 Griffin Road North
Windsor, CT 06095
Certificate 2907
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SGS North America, Inc. - Orlando
4405 Vineland Road, Suite C-15
Orlando, FL 32811
Certificate 2937
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical Services, LLC - Ormond Beach FL
8 E. Tower Circle
Ormond Beach, FL 32174
Certificate 3096
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
American Water Central Laboratory
1115 South Illinois Street
Belleville, IL 62220
Certificate 2737
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Culligan Analytical Laboratory
9399 West Higgins Road, Suite 1100
Rosemont, IL 60018
Certificate 2958
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
EMSL Analytical, Inc.
6340 Castleplace Drive
Indianapolis, IN 46250
Certificate 2575
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins South Bend
110 South Hill Street
South Bend, IN 46617
Certificate 2920
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
ARS Aleut Analytical, LLC
2609 North River Road
Port allen, LA 70767
Certificate 3085
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SGS North America - Scott
500 Ambassador Caffery Parkway
Scott, LA 70583
Certificate 3093
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical Services, LLC - Mansfield, MA (120 Forbes)
120 Forbes Blvd.
Mansfield, MA 02048
Certificate 3145
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical Services, LLC -Mansfield MA
320 Forbes Blvd.
Mansfield, MA 02048
Certificate 3117
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Battelle Norwell Laboratory
141 Longwater Drive, Suite 202
Norwell, MA 02061
Certificate 3045
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Accurate Analytical Testing, LLC
30105 Beverly Rd.
Romulus, MI 48174
Certificate 2979
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
National Testing Laboratories, Ltd
556 South Mansfield Street
Ypsilanti, MI 48197
Certificate 2568
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical Services, LLC
1700 Elm Street SE, Suite 200
Minneapolis, MN 55414
Certificate 2929
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins St. Louis
13715 Rider Trail North
Earth City, MO 63045
Certificate 2886
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
EMSL Analytical, Inc.
100 Green Park Industrial Court
Saint Louis, MO 63123
Certificate 2668
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Energy Laboratories, Inc.
1120 South 27th Street
Billings, MT 59101
Certificate 3087
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins CEI, Inc.
730 SE Maynard Road
Cary, NC 27511
Certificate 2483
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Cape Fear Analytical, LLC
3306 Kitty Hawk Road, Suite 120
Wilmington, NC 28405
Certificate 2936
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Onterris Laboratories, LLC
2714 Exchange Dr.
Wilmington, NC 28405
Certificate 3012
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SGS North America Inc.
5500 Business Drive
Wilmington, NC 28405
Certificate 2914
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
EMSL Analytical Inc.
200 Route 130 North
Cinnaminson, NJ 08077
Certificate 1877
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Hillmann Consulting, LLC
1600 Route 22 East
Union, NJ 07083
Certificate 2924
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
ASSET Laboratories
3151 West Post Road
Las Vegas, NV 89118
Certificate 2676
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical National - Las Vegas
6000 South Eastern Avenue, Suite 9A
Las Vegas, NV 89119
Certificate 3118
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SGS Built Environment
3620 E. Sunset Rd., Suite 110
Las Vegas, NV 89120
Certificate 3077
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Western Environmental Testing Laboratory - Las Vegas
3230 Polaris Avenue, #4
Las Vegas, NV 89102
Certificate 3014
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SGS Silver State Analytical Lab - Reno
1135 Financial Boulevard
Reno, NV 89502
Certificate 2990
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Western Environmental Testing Laboratory
475 East Greg Street, # 119
Sparks, NV 89431
Certificate 2523
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
EMSL Analytical, Inc.
528 Mineola Avenue
Carle Place, NY 11514
Certificate 2339
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Alliance Technical Group, LLC - Akron
3310 Win Street
Cuyahoga Falls, OH 44223
Certificate 2943
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Microbac Laboratories, Inc. - Marietta Division
158 Starlite Drive
Marietta, OH 45750
Certificate 3129
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Spring Street Analytical
350 S. Spring Street
Klamath Falls, OR 97601
Certificate 2596
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical Services, LLC-Greensburg, PA
1638 Roseytown Road, Suites 2, 3 & 4
Greensburg, PA 15601
Certificate 2950
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Lancaster Laboratories Environment Testing, LLC
2425 New Holland Pike
Lancaster, PA 17601
Certificate 2792
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Pittsburgh
301 Alpha Drive
Pittsburgh, PA 15238
Certificate 3122
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Intertek-PSI Inc. Professional Service Industries, Inc.
850 Poplar Street
Pittsburgh, PA 15220
Certificate 2377
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
GEL Laboratories, LLC
2040 Savage Road
Charleston, SC 29407
Certificate 2940
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical Services, LLC - West Columbia
106 Vantage Point Drive
West Columbia, SC 29172
Certificate 3049
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Pace Analytical National Center for Testing & Innovation
12065 Lebanon Road
TN 37122
Certificate 2932
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Memphis
2790 Whitten Road
Memphis, TN 38133
Certificate 2904
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eberline Analytical Corporation
601 A Scarboro Road
Oak Ridge, TN 37830
Certificate 2912
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Environment Testing Bio-Aquatics, LLC
2501 Mayes Road Suite 100
Carrollton, TX 75006
Certificate 3119
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Sea Harbor Laboratories
4828 Calvert Street
Dallas, TX 75247
Certificate 2558
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Moody Labs, LLC
2051 Valley View Lane
Farmers Branch, TX 75234
Certificate 3072
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
ALS Group USA, Corp.- ALS Environmental
10450 Stancliff Road, Suite 210
Houston, TX 77099
Certificate 2919
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Precision Petroleum Labs, Inc.
5915 Star Lane
Houston, TX 77057
Certificate 2913
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Built Environmental Testing Central
3113 Red Bluff Road
Pasadena, TX 77503
Certificate 3067
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
America Science Team of Richmond, Inc. dba AmeriSci Richmond
13635 Genito Road
Midlothian, VA 23112
Certificate 2508
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
SanAir Technologies Laboratory, Inc.
10501 Trade Court
N. Chesterfield, VA 23236
Certificate 2915
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Environmental Hazards Services LLC
7469 Whitepine Road
North Chesterfield, VA 23237
Certificate 2319
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Schneider Laboratories Global, Inc.
2512 West Cary Street
Richmond, VA 23220
Certificate 2078
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
ALS Environmental - Kelso
1317 South 13th Avenue
Kelso, WA 98626
Certificate 2795
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Eurofins Seattle
5755 8th Street East
Tacoma, WA 98424
Certificate 2954
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Energy Laboratories, Inc.
2393 Salt Creek Hwy.
Casper, WY 82601
Certificate 3021
Certified scope not published in this list — the lab is certified, but the source does not say for which analytes. Ask before you book.
Listed in gispublic.waterboards.ca.gov, read 2026-09-20
Where this list comes from
Read on 2026-09-20 from 1 document published by California State Water Resources Control Board. This page lists what those documents list — not necessarily every laboratory California certifies — so check the official directory below before you rely on it.
- gispublic.waterboards.ca.gov (197 laboratories)
How California publishes it: Interactive map—click dots to see laboratory details
Access California Lab DirectoryState Certification Program
California State Water Resources Control Board
Visit Certification Program Website💡 Local Resources & Tips
California's Environmental Laboratory Accreditation Program (ELAP) provides one of the most comprehensive systems; search by county or laboratory name
How to choose one of these labs
- 1.Shortlist two or three: start with the labs in your own city above, because most drinking-water samples must reach the lab within 24-30 hours of collection
- 2.Verify certifications: confirm the lab holds current state certification for the specific contaminants you want to test (bacteria, nitrate, metals, VOCs, PFAS). Certification is per-analyte, and a certificate number on this page is a starting point, not a guarantee it is still current
- 3.Request pricing: call multiple labs to compare prices and turnaround times—costs vary significantly even within the same state
- 4.Schedule testing: follow lab instructions for sample collection, storage, and delivery
- 5.Review results: compare detected concentrations against EPA standards and take appropriate action
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Upload my testTesting Quick Facts
- •Annual minimum: Bacteria + nitrate ($150-$200)
- •Every 2-3 years: Comprehensive panel ($250-$400)
- •PFAS testing: Near risk sources ($300-$500)
- •Turnaround: 24-48 hrs (bacteria), 5-10 days (comprehensive)
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