Walnut, CA Facts, Population, Income, Demographics, Economy

Population (total): Population in 2017: 30,199 (100% urban, 0% rural). >Population change since 2000: +0.6%

Population (male): 15,088

Population (female): 15,111

Median Age: 44.7 years

Sex Offenders: According to our research of California and other state lists, there were 14 registered sex offenders living in Walnut, California as of January 16, 2021. The ratio of all residents to sex offenders in Walnut is 2,162 to 1.The ratio of registered sex offenders to all residents in this city is much

Ancestries: Ancestries: American (1.9%), German (1.3%).

Elevation: 569 feet

Zip Codes: 91789

Goldribbon

Recognitions and Certifications

Accredited Drug Testing has been recognized as one of the "Top 10 drug testing companies" for excellent customer service and we have received TPA Accreditation from the National Drug and Alcohol Screening Association. We are active in all drug testing industry associations and our staff are trained and certified as drug and alcohol testing specialists.

Important Links

National Drug and Alcohol Screening Association (https://ndasa.com/)

National Drug Free Workplace Alliance (https://www.ndwa.org/)

Substance Abuse Program Administrators Association (https://www.sapaa.com/)

Substance Abuse Mental Health Safety Administration (https://www.samhsa.gov/)

US Drug Enforcement Administration (https://www.dea.gov/)

Office of Drug alcohol Policy Control (https://www.transportation.gov/odapc)

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Drug & Alcohol Testing Centers, Walnut, CA

Accredited Drug Testing Inc, is the nation's leading provider of drug, alcohol, occupational health, and DNA testing and has testing centers in Walnut, CA and throughout the local area. Testing centers are within minutes of your home or office and same day service is available in most cases.

1981 N BROADWAY Ste 190 0.2 miles

1981 N BROADWAY Ste 190
WALNUT CREEK, CA 94596
Categories: WALNUT CREEK CA

1425 S MAIN ST 1.0 miles

1425 S MAIN ST
WALNUT CREEK, CA 94596
Categories: WALNUT CREEK CA

108 LA CASA VIA, STE 105 1.2 miles

108 LA CASA VIA, STE 105
WALNUT CREEK, CA 94598
Categories: WALNUT CREEK CA

320 LENNON LN FL 2 2.4 miles

320 LENNON LN FL 2
WALNUT CREEK, CA 94598
Categories: WALNUT CREEK CA

401 Gregory Ln, Ste 146 3.0 miles

401 Gregory Ln, Ste 146
Pleasant Hill, CA 94523
Categories: Pleasant Hill CA

609 GREGORY LN STE 100 3.0 miles

609 GREGORY LN STE 100
PLEASANT HILL, CA 94523
Categories: PLEASANT HILL CA

2090 COMMERCE AVE 4.9 miles

2090 COMMERCE AVE
CONCORD, CA 94520
Categories: CONCORD CA

2280 DIAMOND BLVD STE 520 4.9 miles

2280 DIAMOND BLVD STE 520
CONCORD, CA 94520
Categories: CONCORD CA

2231 GALAXY CT 5.0 miles

2231 GALAXY CT
CONCORD, CA 94520
Categories: CONCORD CA

2477 PACHECO ST 5.5 miles

2477 PACHECO ST
CONCORD, CA 94520
Categories: CONCORD CA

2425 East Street, Suite 6 5.5 miles

2425 East Street, Suite 6
Concord, CA 94520
Categories: Concord CA

2540 EAST ST 5.6 miles

2540 EAST ST
CONCORD, CA 94520
Categories: CONCORD CA

1805 ARNOLD DR 6.2 miles

1805 ARNOLD DR
MARTINEZ, CA 94553
Categories: MARTINEZ CA

5167 CLAYTON RD STE H 6.4 miles

5167 CLAYTON RD STE H
CONCORD, CA 94521
Categories: CONCORD CA

827 ARNOLD DR STE 70 6.9 miles

827 ARNOLD DR STE 70
MARTINEZ, CA 94553
Categories: MARTINEZ CA

200 MUIR RD Hacienda Bldg, 1st Floor 7.2 miles

200 MUIR RD Hacienda Bldg, 1st Floor
MARTINEZ, CA 94553
Categories: MARTINEZ CA

3237 ALHAMBRA AVE STE 2 7.5 miles

3237 ALHAMBRA AVE STE 2
MARTINEZ, CA 94553
Categories: MARTINEZ CA

2301 CAMINO RAMON STE 108 10.5 miles

2301 CAMINO RAMON STE 108
SAN RAMON, CA 94583
Categories: SAN RAMON CA

6001 NORRIS CANYON RD Ste 142 10.6 miles

6001 NORRIS CANYON RD Ste 142
SAN RAMON, CA 94583
Categories: SAN RAMON CA

5601 NORRIS CANYON RD STE 140 10.6 miles

5601 NORRIS CANYON RD STE 140
SAN RAMON, CA 94583
Categories: SAN RAMON CA

2450 ASHBY AVE 11.1 miles

2450 ASHBY AVE
BERKELEY, CA 94705
Categories: BERKELEY CA

4749 SURREY LN 11.2 miles

4749 SURREY LN
EL SOBRANTE, CA 94803
Categories: EL SOBRANTE CA

1517 GRAND AVE 11.3 miles

1517 GRAND AVE
PIEDMONT, CA 94611
Categories: PIEDMONT CA

1001 PITTSBURG ANTIOCH HWY STE B 11.4 miles

1001 PITTSBURG ANTIOCH HWY STE B
PITTSBURG, CA 94565
Categories: PITTSBURG CA

3774 RAILROAD AVE STE C 11.5 miles

3774 RAILROAD AVE STE C
PITTSBURG, CA 94565
Categories: PITTSBURG CA

4069 PIEDMONT AVE STE 910 11.6 miles

4069 PIEDMONT AVE STE 910
OAKLAND, CA 94611
Categories: OAKLAND CA

3701 BROADWAY FL 5 12.0 miles

3701 BROADWAY FL 5
OAKLAND, CA 94611
Categories: OAKLAND CA

3300 WEBSTER ST, STE 1110 12.2 miles

3300 WEBSTER ST, STE 1110
OAKLAND, CA 94609
Categories: OAKLAND CA

350 HAWTHORNE AVE 12.3 miles

350 HAWTHORNE AVE
OAKLAND, CA 94609
Categories: OAKLAND CA

538 STONE RD STE G 12.4 miles

538 STONE RD STE G
BENICIA, CA 94510
Categories: BENICIA CA

1901 RAILROAD AVE STE B 12.5 miles

1901 RAILROAD AVE STE B
PITTSBURG, CA 94565
Categories: PITTSBURG CA

1251 CALIFORNIA AVE STE 600 12.9 miles

1251 CALIFORNIA AVE STE 600
PITTSBURG, CA 94565
Categories: PITTSBURG CA

2505 BATAAN ST STE O 12.9 miles

2505 BATAAN ST STE O
OAKLAND, CA 94607
Categories: OAKLAND CA

2850 7TH ST STE 100 12.9 miles

2850 7TH ST STE 100
BERKELEY, CA 94710
Categories: BERKELEY CA

1700 BROADWAY STE 310 13.1 miles

1700 BROADWAY STE 310
OAKLAND, CA 94612
Categories: OAKLAND CA

6001 SHELLMOUND ST STE 850 13.3 miles

6001 SHELLMOUND ST STE 850
EMERYVILLE, CA 94608
Categories: EMERYVILLE CA

7817 OAKPORT ST 13.4 miles

7817 OAKPORT ST
OAKLAND, CA 94621
Categories: OAKLAND CA

7901 OAKPORT ST STE 4950 2ND FLOOR 13.4 miles

7901 OAKPORT ST STE 4950 2ND FLOOR
OAKLAND, CA 94621
Categories: OAKLAND CA

2339 BUCHANAN RD 13.6 miles

2339 BUCHANAN RD
ANTIOCH, CA 94509
Categories: ANTIOCH CA

500 Alfred Nobel Drive, Suite 115 13.7 miles

500 Alfred Nobel Drive, Suite 115
Hercules, CA 94547
Categories: Hercules CA

401 ROLAND WAY STE 205 13.7 miles

401 ROLAND WAY STE 205
OAKLAND, CA 94621
Categories: OAKLAND CA

384 EMBARCADERO W 13.8 miles

384 EMBARCADERO W
OAKLAND, CA 94607
Categories: OAKLAND CA

2042 Columbus Pkwy, 13.8 miles

2042 Columbus Pkwy,
Benicia, CA 94510
Categories: Benicia CA

1100 ROSE DR ste 140 13.9 miles

1100 ROSE DR ste 140
BENICIA, CA 94510
Categories: BENICIA CA

520 6TH ST 13.9 miles

520 6TH ST
RODEO, CA 94572
Categories: RODEO CA

2421 ENCINAL AVE STE A 13.9 miles

2421 ENCINAL AVE STE A
ALAMEDA, CA 94501
Categories: ALAMEDA CA

3400 DELTA FAIR BLVD 13.9 miles

3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Categories: ANTIOCH CA

13939 E 14TH ST 13.9 miles

13939 E 14TH ST
SAN LEANDRO, CA 94578
Categories: SAN LEANDRO CA

2111 Whitehall Place, Suite D 14.5 miles

2111 Whitehall Place, Suite D
Alameda, CA 94501
Categories: Alameda CA

20400 Lake Chabot Rd Ste 101, 14.6 miles

20400 Lake Chabot Rd Ste 101,
Castro Valley, CA 94546
Categories: Castro Valley CA

3726 BARRETT AVE 14.8 miles

3726 BARRETT AVE
RICHMOND, CA 94805
Categories: RICHMOND CA

1555 DOOLITTLE DR STE 180 15.0 miles

1555 DOOLITTLE DR STE 180
SAN LEANDRO, CA 94577
Categories: SAN LEANDRO CA

2587 MERCED ST 15.1 miles

2587 MERCED ST
SAN LEANDRO, CA 94577
Categories: SAN LEANDRO CA

2970 HILLTOP MALL RD STE 203 15.3 miles

2970 HILLTOP MALL RD STE 203
RICHMOND, CA 94806
Categories: RICHMOND CA

2000 VALE RD 15.3 miles

2000 VALE RD
SAN PABLO, CA 94806
Categories: SAN PABLO CA

2425 CHURCH LN 15.4 miles

2425 CHURCH LN
SAN PABLO, CA 94806
Categories: SAN PABLO CA

120 BROADWAY STE 23 15.4 miles

120 BROADWAY STE 23
RICHMOND, CA 94804
Categories: RICHMOND CA

7667 AMADOR VALLEY BLVD 15.5 miles

7667 AMADOR VALLEY BLVD
DUBLIN, CA 94568
Categories: DUBLIN CA

3901 LONE TREE WAY 15.8 miles

3901 LONE TREE WAY
ANTIOCH, CA 94509
Categories: ANTIOCH CA

901 NEVIN AVE BLDG B FLOOR 1 16.3 miles

901 NEVIN AVE BLDG B FLOOR 1
RICHMOND, CA 94801
Categories: RICHMOND CA

5720 Stoneridge Mall Road, Suite 110 16.5 miles

5720 Stoneridge Mall Road, Suite 110
Pleasanton, CA 94588
Categories: Pleasanton CA

24326 MISSION BLVD STE 3 16.7 miles

24326 MISSION BLVD STE 3
HAYWARD, CA 94544
Categories: HAYWARD CA

7601 STONERIDGE DR FL 1 16.8 miles

7601 STONERIDGE DR FL 1
PLEASANTON, CA 94588
Categories: PLEASANTON CA

3450 HILLCREST AVE 17.1 miles

3450 HILLCREST AVE
ANTIOCH, CA 94531
Categories: ANTIOCH CA

243 GEORGIA ST STE B 17.1 miles

243 GEORGIA ST STE B
VALLEJO, CA 94590
Categories: VALLEJO CA

4847 HOPYARD RD STE 4-424 17.2 miles

4847 HOPYARD RD STE 4-424
PLEASANTON, CA 94588
Categories: PLEASANTON CA

4501 SAND CREEK RD 17.4 miles

4501 SAND CREEK RD
ANTIOCH, CA 94531
Categories: ANTIOCH CA

4000 DUBLIN BLVD STE 150 17.5 miles

4000 DUBLIN BLVD STE 150
DUBLIN, CA 94568
Categories: DUBLIN CA

17 Tennessee St 17.7 miles

17 Tennessee St
Vallejo, CA 94590
Categories: Vallejo CA

5635 W LAS POSITAS BLVD 17.9 miles

5635 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Categories: PLEASANTON CA

3128 SANTA RITA RD 18.1 miles

3128 SANTA RITA RD
PLEASANTON, CA 94566
Categories: PLEASANTON CA

300 HOSPITAL DR 18.2 miles

300 HOSPITAL DR
VALLEJO, CA 94589
Categories: VALLEJO CA

975 SERENO DR 18.3 miles

975 SERENO DR
VALLEJO, CA 94589
Categories: VALLEJO CA

2224 DELUCCHI DR 18.6 miles

2224 DELUCCHI DR
PLEASANTON, CA 94588
Categories: PLEASANTON CA

2324 SANTA RITA RD STE 4 18.6 miles

2324 SANTA RITA RD STE 4
PLEASANTON, CA 94566
Categories: PLEASANTON CA

27200 CALAROGA AVE 18.9 miles

27200 CALAROGA AVE
HAYWARD, CA 94545
Categories: HAYWARD CA

26250 INDUSTRIAL BLVD STE 32 19.0 miles

26250 INDUSTRIAL BLVD STE 32
HAYWARD, CA 94545
Categories: HAYWARD CA

2400 BALFOUR RD Ste 230 19.3 miles

2400 BALFOUR RD Ste 230
BRENTWOOD, CA 94513
Categories: BRENTWOOD CA

3200 BUSCH RD 19.4 miles

3200 BUSCH RD
PLEASANTON, CA 94566
Categories: PLEASANTON CA

49 DRUMM ST 19.7 miles

49 DRUMM ST
SAN FRANCISCO, CA 94111
Categories: SAN FRANCISCO CA

26 CALIFORNIA ST 19.7 miles

26 CALIFORNIA ST
SAN FRANCISCO, CA 94111
Categories: SAN FRANCISCO CA

24 WILLIE MAYS PLZ 19.8 miles

24 WILLIE MAYS PLZ
SAN FRANCISCO, CA 94107
Categories: SAN FRANCISCO CA

2 TERMINAL 19.8 miles

2 TERMINAL
SAN FRANCISCO, CA 94128
Categories: SAN FRANCISCO CA

3901 WALNUT BLVD STE A-2 19.9 miles

3901 WALNUT BLVD STE A-2
BRENTWOOD, CA 94513
Categories: BRENTWOOD CA

1181 Central Boulevard, Suite C 20.0 miles

1181 Central Boulevard, Suite C
Brentwood, CA 94513
Categories: Brentwood CA

580 MARKET ST STE 100 20.1 miles

580 MARKET ST STE 100
SAN FRANCISCO, CA 94104
Categories: SAN FRANCISCO CA

29000 HESPERIAN BLVD 20.1 miles

29000 HESPERIAN BLVD
HAYWARD, CA 94545
Categories: HAYWARD CA

845 JACKSON ST 20.3 miles

845 JACKSON ST
SAN FRANCISCO, CA 94133
Categories: SAN FRANCISCO CA

2 CONNECTICUT ST STE 1 20.6 miles

2 CONNECTICUT ST STE 1
SAN FRANCISCO, CA 94107
Categories: SAN FRANCISCO CA

3555 WHIPPLE RD 20.8 miles

3555 WHIPPLE RD
UNION CITY, CA 94587
Categories: UNION CITY CA

900 HYDE ST 20.8 miles

900 HYDE ST
SAN FRANCISCO, CA 94109
Categories: SAN FRANCISCO CA

SFIA Terminal 2 21.1 miles

SFIA Terminal 2
San Francisco, CA 94125
Categories: San Francisco CA

601 VAN NESS AVE Ste 2008 21.2 miles

601 VAN NESS AVE Ste 2008
SAN FRANCISCO, CA 94102
Categories: SAN FRANCISCO CA

On-site only 21.2 miles

On-site only
San Francisco, CA 94124
Categories: San Francisco CA

33077 ALVARADO NILES RD 21.7 miles

33077 ALVARADO NILES RD
UNION CITY, CA 94587
Categories: UNION CITY CA

Castro & Duboce St, South Tower Ste 160A 21.7 miles

Castro & Duboce St, South Tower Ste 160A
SAN FRANCISCO, CA 94114
Categories: SAN FRANCISCO CA

33560 ALVARADO NILES RD 21.8 miles

33560 ALVARADO NILES RD
UNION CITY, CA 94587
Categories: UNION CITY CA

3000 LAS POSITAS RD 22.0 miles

3000 LAS POSITAS RD
LIVERMORE, CA 94551
Categories: LIVERMORE CA

2300 SUTTER ST STE 102 22.0 miles

2300 SUTTER ST STE 102
SAN FRANCISCO, CA 94115
Categories: SAN FRANCISCO CA

2201 Post St, 22.0 miles

2201 Post St,
San Francisco, CA 94115
Categories: San Francisco CA

1111 E STANLEY BLVD 22.0 miles

1111 E STANLEY BLVD
LIVERMORE, CA 94550
Categories: LIVERMORE CA

1133 E STANLEY BLVD Ste 151 22.1 miles

1133 E STANLEY BLVD Ste 151
LIVERMORE, CA 94550
Categories: LIVERMORE CA

3555 CESAR CHAVEZ 22.3 miles

3555 CESAR CHAVEZ
SAN FRANCISCO, CA 94110
Categories: SAN FRANCISCO CA

2198 15th St, 22.3 miles

2198 15th St,
San Francisco, CA 94114
Categories: San Francisco CA

505 PARNASSUS AVE Ste 896 23.7 miles

505 PARNASSUS AVE Ste 896
SAN FRANCISCO, CA 94143
Categories: SAN FRANCISCO CA

556 Mowry Avenue, Suite 103 24.0 miles

556 Mowry Avenue, Suite 103
Fremont, CA 94536
Categories: Fremont CA

1411 Oliver Road, Suite 130 24.3 miles

1411 Oliver Road, Suite 130
Fairfield, CA 94534
Categories: Fairfield CA

25 BELLAM BLVD STE 101 24.4 miles

25 BELLAM BLVD STE 101
SAN RAFAEL, CA 94901
Categories: SAN RAFAEL CA

2000 MOWRY AVE 24.5 miles

2000 MOWRY AVE
FREMONT, CA 94538
Categories: FREMONT CA

2147 MOWRY AVE STE C1 24.5 miles

2147 MOWRY AVE STE C1
FREMONT, CA 94538
Categories: FREMONT CA

5570 STOCKTON LOOP 24.6 miles

5570 STOCKTON LOOP
LIVERMORE, CA 94550
Categories: LIVERMORE CA

101 CASA BUENA DR 24.7 miles

101 CASA BUENA DR
CORTE MADERA, CA 94925
Categories: CORTE MADERA CA

35500 DUMBARTON CT 24.8 miles

35500 DUMBARTON CT
NEWARK, CA 94560
Categories: NEWARK CA

2 FIFER AVE STE 130 24.9 miles

2 FIFER AVE STE 130
CORTE MADERA, CA 94925
Categories: CORTE MADERA CA

3161 WALNUT AVE 25.0 miles

3161 WALNUT AVE
FREMONT, CA 94538
Categories: FREMONT CA

Drug and alcohol testing services are provided for employers and individuals and are administered for various reasons including Employment related such as pre-employment, random, post accident and reasonable suspicion, also US DOT-Part 40, Court Ordered, School and personal reasons.

Scheduling a drug, alcohol or any testing service at any of our Walnut, CA testing facilities is simple and easy. Call (800)221-4291 or you may schedule a test online 24/7 by clicking below and receive your donor pass/registration form with the testing center address and instructions via email.

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Customer Service Is Our #1 Priority- Our Drug Testing centers recognize that needing a drug, alcohol or occupational health test can be stressful at times. Accredited Drug Testing takes the stress out of a stressful situation and is available to answer any questions you may have and provide our services in a friendly, courteous and confidential manner. Call our scheduling department today at (800)221-4291.



View all available drug testing services


Types of Drug Testing Methods Available

Our testing centers provide many types of drug testing methods, below is a brief description of each method choose the one that is right for your need.


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Urine Test - Urine - Accredited Drug Testing provides drug testing utilizing the Urine screening method. Urine drug testing can be screened for 5, 7, 9, 10, 12 and 15 panel screenings. Urine drug tests can also include an expanded opiates analysis. Same day service is available and testing centers are located in all cities and in most cases within minutes from your home or office. The detection period for a urine drug test is up to 3-5 days and results are reported in most cases in 2- 3 days.

The procedure for a urine drug test is simple. A donor provides a urine specimen in a cup to a drug testing collection specialist who will then seal the specimen cup, complete various documentation including a chain of custody form, have the donor initial the specimen cup seal, provide identification and upon completion of the collection and paperwork the specimen will be sent in a secure manner by Currier to the laboratory for testing.


Hair Drug Testing - Accredited Drug Testing can provide a drug test utilizing the Hair follicle drug test method and a Hair drug test can be tested for 5, 10, and 12 panel screenings. The detection period for a hair drug test is up to 90 days and results are reported in most cases in 3 -5 days.

The hair drug test is becoming more frequently used by employers, courts and other government agencies due to the fact that the window of detection for illegal drug use for a hair is up to 90 days. Many courts have begun accepting hair testing in place of urine or blood testing and hair testing has been determined to be legally and scientifically admissible evidence in a court of law.

A hair drug test is a simple process whereby a drug testing collection specialist cuts approximately 120 strands of hair from the head or a specific amount from the body and submits the hair to a certified laboratory for analysis. A hair follicle drug test can be screened for a 5 panel, 10 panel or 12 panel test and can also include expanded opiates. If a donor does not have 1 ½ inches of hair on their head, body hair can be utilized, however, if the donor is bald and has none or very little body hair, a hair drug test is not an available option, a urine or oral/saliva test should be utilized.

In addition to our standard drug test panels, opioid screening can be added to any drug test to determine the use and/or abuse of any prescription drugs.

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US DOT Testing and Part 40 Compliance - Accredited Drug Testing provides DOT drug testing for pre-employment, post-accident, reasonable suspicion and return to duty for companies or employees regulated and covered by 49 CFR Part 40 including FMCSA, USCG, FTA, FRA, FAA, PHMSA. The drug test required by the Department of Transportation is a 5-panel urine test, which must be analyzed by SAMHSA certified laboratory and verified by a Medical Review Officer (MRO).

Additional DOT services include:

  • -DOT Consortium Membership (random testing)
  • -DOT Supervisor Training
  • -MVR Reports
  • -DOT Drug Policy Development
  • -DOT Physicals
  • -DOT Breath Alcohol Testing

Our Walnut, CA testing centers have certified DOT drug testing collection specialists who are trained in the proper collection of a DOT drug test.

The Opioid Overdose Crisis

Every day, more than 130 people in the United States die after overdosing on opioids. The misuse of and addiction to opioids—including prescription pain relievers, heroin, and synthetic opioids such as fentanyl—is a serious national crisis that affects public health as well as social and economic welfare. The Centers for Disease Control and Prevention estimates that the total "economic burden" of prescription opioid misuse alone in the United States is $78.5 billion a year, including the costs of healthcare, lost productivity, addiction treatment, and criminal justice involvement.

  • Roughly 21 to 29 percent of patients prescribed opioids for chronic pain misuse them.
  • Between 8 and 12 percent develop an opioid use disorder.
  • An estimated 4 to 6 percent who misuse prescription opioids transition to heroin.
  • About 80 percent of people who use heroin first misused prescription opioids.
  • Opioid overdoses increased 30 percent from July 2016 through September 2017 in 52 areas in 45 states.
  • The Midwestern region saw opioid overdoses increase 70 percent from July 2016 through September 2017.
  • Opioid overdoses in large cities increase by 54 percent in 16 states.

In the late 1990s, pharmaceutical companies reassured the medical community that patients would not become addicted to prescription opioid pain relievers, and healthcare providers began to prescribe them at greater rates. This subsequently led to widespread diversion and misuse of these medications before it became clear that these medications could indeed be highly addictive.3,4 Opioid overdose rates began to increase. In 2017, more than 47,000 Americans died as a result of an opioid overdose, including prescription opioids, heroin, and illicitly manufactured fentanyl, a powerful synthetic opioid.1That same year, an estimated 1.7 million people in the United States suffered from substance use disorders related to prescription opioid pain relievers, and 652,000 suffered from a heroin use disorder (not mutually exclusive)

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Court Ordered Testing - Accredited Drug Testing and our Walnut, CA drug testing centers also provide drug and alcohol testing for probation and other court ordered testing requirements. Testing services include ETG alcohol testing and drug testing utilizing urine and hair methods. Test results can be sent directly to Probation Officers, Judges, Attorneys or other parties as required. Strict confidentiality is assured.


Alcohol Testing - Accredited Drug Testing and our Walnut, CA testing centers provide alcohol testing including ETG testing in both urine and hair and Breath Alcohol Testing (BAT). Alcohol testing can be added to any drug test screening.

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Testing Facilities Nationwide - In addition to our drug and alcohol testing centers in Walnut, CA and the local area, Accredited Drug Testing has company owned and affiliated collection sites in all States and most cities to serve our clients' needs when traveling or employment related testing is required in multiple cities or States.


On-Site/Mobile Testing - Time Is Money!- Accredited Drug Testing provides On-Site drug testing services in all cities nationwide and can be used for construction sites, sporting events, job fairs and trucking/transportation companies, on site testing is available for DOT and NON-DOT regulated employers. In most cases, on-site mobile testing is cost effective when you have 10 or more employees needing to be drug or alcohol tested without leaving the job site.

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Employer testing/account setup - If you are an employer with at least 5 employees and would like to set up an account for future testing, it's simple and easy. Call us and speak with a client relations representative, (800)221-4291 it takes 5 minutes or less to complete. Account benefits include no setup fees, test discounts, invoicing, test status tracking and personalized customer service.

Does Your Company Have a Written Drug Policy? - Employee Drug & alcohol testing is utilized best when conducted in conjunction with a clear, written drug policy that is shared with all employees, along with employee education about the dangers of alcohol and drug abuse, supervisor training on the signs and symptoms of alcohol and drug abuse, and an Employee Assistance Program (EAP) to provide help for employees who may have an alcohol or drug problem. If your company does not have a written drug and alcohol policy or your current policy needs to be revised, Accredited Drug Testing specializes in the development and implementation of an employer's drug and alcohol policy which complies with state and federal law.


DNA Testing Services -Accredited Drug Testing provides DNA testing at testing centers Nationwide for paternity, immigration, and family relationship purposes. DNA testing centers are located in most cities and within minutes of your home or office.

DNA testing can provide an accurate determination of the probability of paternity at 99% more of who the child's biological father or mother is. The initial DNA test takes only a few minutes at the testing center and involves the swabbing of the child and alleged fathers mouth, which will provide saliva to be analyzed by a certified laboratory. Our DNA results are analyzed by a certified AABB laboratory and can be used in a legal proceeding to determine paternity or child custody related issues.

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"When you need a test, choose the best!"

Alcohol Testing Walnut, CA Services

(800)221-4291

For more information regarding the effects of drug abuse - Click Here

For more information on a drug free work place - Click Here

Handy Resources

Comprehensive Online Resources for Drug Testing

  1. National Institute on Drug Abuse (NIDA)

    Provides comprehensive information on drug testing and its role in substance use disorder treatment.

  2. FDA: Drug Testing

    Explains the FDA's role and regulations concerning drug testing for consumers.

  3. PDR.net

    Provides detailed drug information and safety updates through a mobile-friendly platform.

  4. BeSafeRx - FDA

    Resource by the FDA to help consumers identify and choose safe online pharmacies.

  5. SAMHSA: Drug Testing Resources for the Workplace

    Resources and guidelines for drug testing in the workplace.

  6. Drugs.com

    Provides drug information, side effects, and interactions for consumers and professionals.

  7. Drug Abuse Screening Test (DAST)

    Online version of the DAST to help individuals assess whether they have a drug problem.

  8. Merck Manuals

    Consumer-friendly medical resource providing comprehensive information on a wide array of health topics, including drug testing.

  9. SAMHSA Store

    Provides access to resources and publications on substance use prevention and treatment.

  10. National Association of Boards of Pharmacy (NABP)

    Information on state boards of pharmacy and regulations, including those related to drug testing.

  11. CDC: Workplace Health Promotion

    CDC's resources on substance use and drug testing in the workplace.

  12. Mayo Clinic: Drug Testing

    General information about the procedures and types of drug tests.

  13. MedlinePlus: Drug Testing

    Offers information about various drug tests and their uses in medical diagnosis and treatment.

  14. University of Rochester Medical Center Health Encyclopedia

    Provides a detailed entry on drug testing, including how tests are conducted and what they detect.

  15. World Health Organization (WHO)

    International guidelines and information on public health, including substance abuse and drug testing.

  16. Healthline: Drug Testing

    Consumer health site offering information on how drug tests work and what they look for.

  17. WebMD: Drug Testing

    Provides a patient-oriented overview of drug testing and its purposes.

  18. National Center for Biotechnology Information (NCBI)

    Provides a vast database of scientific studies, including research on drug testing and its effectiveness.

AI Overview

Overview of Drug Testing Collection Centers

Drug testing collection centers are specialized facilities where individuals submit biological samples for drug testing. These centers play a crucial role in the drug testing process, serving industries such as transportation, healthcare, sports, and many sectors requiring workplace safety and compliance with drug-free policies. This overview details the functions, types of tests conducted, and what individuals can expect during a visit to a drug testing collection center.

Functions of Drug Testing Collection Centers

Collection centers are primarily responsible for the secure and proper collection of samples, ensuring that they are uncontaminated and accurately reflect the subject's drug use status. They adhere to strict procedures to maintain confidentiality and integrity of the testing process.

Types of Tests Conducted

  • Urine Testing: The most common form of drug testing, used to detect recent use of drugs such as marijuana, cocaine, opiates, amphetamines, and others.
  • Hair Follicle Testing: Provides a longer detection window compared to urine testing and is used to analyze drug use over a period of months.
  • Saliva Testing: Used for its non-invasive nature and ability to detect immediate drug use.
  • Blood Testing: Although less common due to its invasive nature, it is the most accurate form of drug testing.

What to Expect at a Collection Center

  1. Identification Verification: Upon arrival, individuals must present valid identification to ensure that the samples correspond to the correct person.
  2. Sample Collection: Trained professionals collect samples in a manner that minimizes the chance of tampering or contamination. This might involve measures such as securing personal belongings and direct observation during sample provision.
  3. Chain of Custody: Each sample is handled with a documented chain of custody procedure to maintain its integrity from collection to testing laboratory.

Importance of Collection Centers

Drug testing collection centers are vital for ensuring the effectiveness and reliability of the drug testing process. They provide essential services that help employers maintain a safe and productive workplace, enforce legal and regulatory requirements, and assist in rehabilitation processes. The professionalism and accuracy practiced by these centers are crucial for upholding the trust and safety standards expected in many professional environments.

Local Area Info: Walnut, California

Walnut is a suburban city in the eastern part of Los Angeles County in California. Money's Best Places to Live ranked Walnut #70 in 2009 and #57 in 2011, the highest ranking for a California city in both years.

The greater Walnut Valley is located between the steep San Jose Hills mountain range to the north, and the gentle Puente Hills to the south. Quality housing consists of master-planned single family homes ranging in size from 1,800 to 11,200 square feet. The city hosts a highly ranked public school system - the Walnut Valley Unified School District, which has been ranked by numerous sources as one of the top public school districts in Southern California as well as Mt. San Antonio College. Walnut is one of the cities with the lowest crime rates in the San Gabriel Valley.

The city covers nearly nine square miles (23 km2) and is home to hundreds of businesses. Its 2012 population was estimated at 29,661 by the United States Census Bureau. According to the 2010 United States Census, Walnut has a median household income at one of the top earning percentiles in the country at $101,250.

Show Regional Data

Population (total): Population in 2017: 30,199 (100% urban, 0% rural). >Population change since 2000: +0.6%

Population (male): 15,088

Population (female): 15,111

Median Age: 44.7 years

Sex Offenders: According to our research of California and other state lists, there were 14 registered sex offenders living in Walnut, California as of January 16, 2021. The ratio of all residents to sex offenders in Walnut is 2,162 to 1.The ratio of registered sex offenders to all residents in this city is much

Ancestries: Ancestries: American (1.9%), German (1.3%).

Elevation: 569 feet

Zip Codes: 91789

(800) 221-4291