Drug Test Services - Walnut, CA

Urine | Hair | DOT | Oral Fluid | Alcohol/ETG | Occupational Health

With 36 testing centers in the Walnut area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.

36 Drug Test Service Centers in Walnut

Minutes Away, Test Today

1981 N Broadway Ste 190

0.18 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1981 N Broadway Ste 190
Walnut Creek, CA 94596

1425 S Main St

1.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1425 S Main St
Walnut Creek, CA 94596

108 La Casa Via, Ste 105

1.21 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
108 La Casa Via, Ste 105
Walnut Creek, CA 94598

320 Lennon Ln Fl 2

2.42 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
320 Lennon Ln Fl 2
Walnut Creek, CA 94598

401 Gregory Ln, Ste 146

2.99 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
401 Gregory Ln, Ste 146
Pleasant Hill, CA 94523

609 Gregory Ln Ste 100

3.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
609 Gregory Ln Ste 100
Pleasant Hill, CA 94523

2090 Commerce Ave

4.85 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2090 Commerce Ave
Concord, CA 94520

2280 Diamond Blvd Ste 520

4.95 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2280 Diamond Blvd Ste 520
Concord, CA 94520

2231 Galaxy Ct

4.96 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2231 Galaxy Ct
Concord, CA 94520

2477 Pacheco St

5.46 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2477 Pacheco St
Concord, CA 94520

2425 East Street, Suite 6

5.52 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2425 East Street, Suite 6
Concord, CA 94520

2540 East St

5.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2540 East St
Concord, CA 94520

1805 Arnold Dr

6.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1805 Arnold Dr
Martinez, CA 94553

5167 Clayton Rd Ste H

6.35 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5167 Clayton Rd Ste H
Concord, CA 94521

827 Arnold Dr Ste 70

6.86 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
827 Arnold Dr Ste 70
Martinez, CA 94553

200 Muir Rd Hacienda Bldg, 1st Floor

7.19 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
200 Muir Rd Hacienda Bldg, 1st Floor
Martinez, CA 94553

3237 Alhambra Ave Ste 2

7.49 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3237 Alhambra Ave Ste 2
Martinez, CA 94553

2301 Camino Ramon Ste 108

10.49 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2301 Camino Ramon Ste 108
San Ramon, CA 94583

6001 Norris Canyon Rd Ste 142

10.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6001 Norris Canyon Rd Ste 142
San Ramon, CA 94583

5601 Norris Canyon Rd Ste 140

10.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5601 Norris Canyon Rd Ste 140
San Ramon, CA 94583

2450 Ashby Ave

11.06 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2450 Ashby Ave
Berkeley, CA 94705

4749 Surrey Ln

11.19 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4749 Surrey Ln
El Sobrante, CA 94803

1517 Grand Ave

11.29 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1517 Grand Ave
Piedmont, CA 94611

1001 Pittsburg Antioch Hwy Ste B

11.43 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1001 Pittsburg Antioch Hwy Ste B
Pittsburg, CA 94565

3774 Railroad Ave Ste C

11.55 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3774 Railroad Ave Ste C
Pittsburg, CA 94565

4069 Piedmont Ave Ste 910

11.65 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4069 Piedmont Ave Ste 910
Oakland, CA 94611

3701 Broadway Fl 5

11.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3701 Broadway Fl 5
Oakland, CA 94611

3300 Webster St, Ste 1110

12.24 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3300 Webster St, Ste 1110
Oakland, CA 94609

350 Hawthorne Ave

12.31 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
350 Hawthorne Ave
Oakland, CA 94609

538 Stone Rd Ste G

12.40 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
538 Stone Rd Ste G
Benicia, CA 94510

1901 Railroad Ave Ste B

12.48 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1901 Railroad Ave Ste B
Pittsburg, CA 94565

1251 California Ave Ste 600

12.85 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1251 California Ave Ste 600
Pittsburg, CA 94565

2505 Bataan St Ste O

12.87 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2505 Bataan St Ste O
Oakland, CA 94607

2850 7th St Ste 100

12.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2850 7th St Ste 100
Berkeley, CA 94710

1700 Broadway Ste 310

13.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1700 Broadway Ste 310
Oakland, CA 94612

6001 Shellmound St Ste 850

13.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6001 Shellmound St Ste 850
Emeryville, CA 94608

Employers | Individuals | Families

Accredited Drug Testing provides comprehensive drug and alcohol testing services to promote workplace safety, meet compliance requirements, and support legal or personal needs for testing. Drug Testing helps prevent accidents, ensures a drug-free workplace,and meets Federal mandates such as those outlined by the Department of Transportation (DOT)

Drug Testing Services

Customized Testing Options Available | Discounts available for Bulk Purchases | Onsite Drug Testing Services

Urine Drug Testing Services

Urine drug testing in Walnut, California is a common method to identify drug usage by analyzing a urine sample for traces of illegal or prescription drugs. It is non-invasive and easy to administer.

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Purpose of Urine Drug Testing

  • Pre-employment screening
  • Post-accident investigation
  • Random testing programs
  • Follow-up testing
  • Rehabilitation monitoring

What Drugs Can Be Detected

  • Marijuana
  • Cocaine
  • Methamphetamines
  • Opiates
  • PCP

In Walnut, California, urine drug testing remains a key tool for employers and organizations committed to maintaining a drug-free environment. Its simplicity and effectiveness make it a preferred choice.

Order Your Test Online

Alcohol Test Services

Alcohol testing determines the blood alcohol concentration (BAC) in an individual to assess intoxication levels. This testing is crucial for safety in environments where impaired individuals pose a hazard.

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Alcohol Testing is used in many settings

  • Workplace safety programs
  • Law enforcement protocols
  • Rehabilitation monitoring
  • School and university policies
  • Personal health assessments

Common Methods of Alcohol Testing

  • Breathalyzer
  • Urine test
  • Blood test
  • Saliva test
  • EtG test

Breathalyzer - Used primarily by law enforcement to measure BAC.

Urine test - Common in workplaces to detect recent alcohol consumption.

Blood test - Highly accurate, usually for clinical settings.

Saliva test - Quick screening tool for alcohol detection.

EtG test - Detects ethanol metabolites over a longer period.

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Hair Follicle Drug Testing Services

Hair follicle drug testing in , Walnut, California offers a comprehensive assessment of an individual's drug use history over a longer period. By analyzing a small sample of hair, this test provides insight into long-term substance use, making it an effective and non-invasive method.

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Why Use Hair Drug Testing?

  • Extended detection window
  • Hard-to-adulterate
  • Non-invasive collection
  • Long-term substance use evaluation
  • Legal compliance

What Drugs Can Be Detected

  • Cocaine
  • Opiates
  • Methamphetamines
  • Marijuana
  • MDMA
  • PCP

Hair follicle testing in , Walnut, California offers definitive insights into patterns of drug use, which aids in crucial decision-making processes for employers and legal bodies.

Order Your Test Online

DOT Drug Testing Services

DOT drug testing in Walnut, California is designed for transportation workers, following strict federal guidelines to ensure public safety. Regulated by the U.S. Department of Transportation, these tests detect substance abuse among commercial vehicle operators.

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Who is Required to Take DOT Drug Tests?

  • Commercial drivers
  • Pilots
  • Railroad workers
  • Transit workers
  • Public transport operators
  • Marine vessel crew

What Drugs Are Tested For

  • Marijuana
  • Cocaine
  • Amphetamines
  • Opioids
  • PCP
  • Alcohol

In Walnut, California, DOT drug testing is vital for ensuring the safety of transportation systems, protecting passengers and operators alike.

Order Your Test Online

Probation Drug Testing Services

Probation drug testing is a pivotal element of community supervision programs, aiming to monitor compliance with legal conditions. Regular testing deters substance abuse and helps probation officers maintain effective oversight of individuals on probation.

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Why Are Probation Drug Test Services Available?

  • Compliance monitoring: Ensures adherence to probation conditions
  • Behavioral interventions: Aids in rehabilitation efforts
  • Risk assessment: Helps identify substance abuse issues
  • Public safety: Reduces the risk of reoffending
  • Court accountability: Supports judicial decision-making

Testing Methods

  • Urine tests: Non-invasive and standard for recent use detection
  • Hair follicle tests: Provides a long-term usage history
  • Saliva tests: Quick and easy for recent use
  • Blood tests: Precise and typically used in specific cases

In Walnut, California, probation drug testing services ensure individuals adhere to their legal obligations while supporting successful rehabilitation.

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Court Ordered Drug Testing Services

Court ordered drug testing is a legal requirement imposed by courts to ensure compliance with court directives, often used in cases involving custody disputes, DUI offenses, or substance abuse allegations.

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Why are Court Ordered Drug Test Services Available?

  • Ensure child safety
  • Monitor substance abuse
  • Evaluate fitness for custody
  • Fulfill legal obligations
  • Support rehabilitation efforts

Court Ordered Test Methods

  • Urine tests: Common and non-invasive
  • Hair follicle tests: Effective for long-term use detection
  • Saliva tests: Quick results for immediate use detection
  • Blood tests: Precise and in-depth
  • Nail tests: High accuracy and extended detection timeframe

In Walnut, California, our court-ordered drug testing services help enforce legal mandates and ensure the integrity of court-related decisions.

Order Your Test Online

Fingernail Drug Testing Services

In Walnut, California, fingernail drug testing is an innovative method capturing drug use over an extended period, commonly up to 6 months. As keratin in nails grows, it embeds drug metabolites, offering a unique trace of drug history compared to other methods. Learn More

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  • Fingernails: Typically, detect a 3-6 month history of use, depending on growth.
  • Toenails: Provide a longer detection window, up to a year, due to slower growth rate.

What Drugs Can Be Detected

  • Cocaine
  • Opiates
  • Methamphetamines
  • Marijuana
  • Benzodiazepines
  • Barbiturates

Advantages over other methods

  • Longer detection period
  • Non-invasive collection
  • Reduced risk of contamination
  • Effective for history tracking
  • Robust against adulteration
  • Preferred for legal scenarios

Fingernail drug testing in Walnut, California offers unparalleled insights into habits, providing a reliable, long-term overview of an individual's substance use.

Order Your Test Online

Occupational Health Test Services

Urine drug testing is a quick and effective means to detect the presence of drugs in the system, commonly used in workplaces to ensure safety and compliance. In Walnut, California, this is a crucial component of occupational health services, protecting both employees and employers alike. Results can typically indicate recent drug use.

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Purpose of Occupational Health Testing

  • Employee health assessments
  • Workplace safety compliance
  • Preventing workplace accidents
  • Early detection of health issues
  • Ensuring a drug-free workforce

Common Types of Occupational Health Tests

  • Fitness for duty exams: Determines employee capability.
  • Respirator Fit Testing: Ensures proper respirator fit for safety.
  • Pulmonary Function Tests (PFT's): Assesses lung function.
  • Tuberculosis (TB): Identifies potential TB infections.
  • Vision: Evaluates eyesight and ocular health.
  • Audiometric: Checks hearing ability and issues.

In Walnut, California, occupational health testing services play a crucial role in maintaining a safe, healthy, and efficient working environment for businesses across the state.

Order Your Test Online

Drug Statistics for Walnut, California

General drug-related statistics specific to Walnut, California, are not readily available in the public domain. However, Los Angeles County, which encompasses Walnut, commonly reports significant efforts in combating drug abuse through various public health initiatives and law enforcement efforts. These include prevention programs, educational workshops, and community outreach campaigns to address substance abuse issues holistically.

Drug Testing Regulations in California

Employer drug testing in Walnut must comply with state guidelines under Cal. Lab. Code § 1025 et seq.. California AB 2188 requires non-psychoactive cannabis metabolite protections while retaining full employer rights for pre-employment, post-accident, and safety-sensitive testing.

Medical Marijuana Status: Legal  |  Recreational Marijuana Status: Legal

Surrounding Areas Served Near Walnut

Walnut Creek • Acalanes Ridge • Central Contra Costa • Contra Costa Centre • Saranap • Waldon • Shell Ridge • Castle Hill

Drug & Alcohol Test Selection & Panel Comparison

Test Type / Panel Detection Window Common Applications Turnaround Time
5-Panel Urine Screen 1 to 5 Days Standard Pre-Employment, Random & Workplace Testing 24 to 48 Hours
10-Panel Urine Screen 1 to 7 Days Expanded Employment, Healthcare & Probation 24 to 48 Hours
Hair Follicle Drug Test Up to 90 Days Long-Term Monitoring, Court-Ordered & Custody 3 to 5 Business Days
Oral Fluid / Saliva Screen 1 to 48 Hours Immediate Recent-Use Screening & On-Site Testing 24 to 48 Hours
ETG Alcohol Testing Up to 80 Hours Court-Ordered Alcohol Abstinence & Probation Monitoring 24 to 48 Hours

Walnut Drug Testing

Quickly find trusted local drug testing centers in Walnut, CA — fast, convenient, and reliable every time!

Walnut DOT Drug Testing

Quickly find a local DOT drug testing center in Walnut, CA — fast, reliable, convenient nationwide service!

Walnut DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Walnut, CA.

Walnut Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Walnut, CA.v

Walnut Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Walnut, CA locations—results you can trust, every time!

Walnut Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Walnut, CA.

Walnut Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Walnut, CA.

Walnut 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Walnut, CA employers and individuals nationwide.

Walnut 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Walnut, CA workplace and personal testing needs.

Walnut On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Walnut, CA workplace compliant.

Walnut DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Walnut, CA drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.


Frequently Asked Questions

In California, workplace drug testing is governed by statutory guidelines under Cal. Lab. Code § 1025 et seq.. Private employers generally operate under a Labor Code § 1025 and AB 2188 guidelines, permitting pre-employment, random, post-accident, and reasonable suspicion testing.
Yes. Employers in California who implement a certified Drug-Free Workplace Program in compliance with Cal. Lab. Code § 1025 et seq. can qualify for insurance premium discounts and enhanced legal protections during workers' compensation claims.
Under California state law compliance standards, state statutes prohibits adverse action for off-duty non-psychoactive cannabis use. Safety-sensitive positions, DOT-regulated roles, and federal contract compliance remain strictly zero-tolerance across all jurisdictions.
Accredited Drug Testing provides access to 0 certified collection sites in the Walnut area, offering urine, hair follicle, breath alcohol, and DOT testing.
While walk-ins are welcome with an electronic donor pass at collection sites across Walnut, registering your test online or calling (800) 221-4291 prior to visiting guarantees rapid priority specimen collection with an instant barcode pass.
Negative drug and alcohol test results are typically released within 24 to 48 hours of specimen processing. Any non-negative screenings undergo confirmatory GC/MS or LC/MS testing and licensed Medical Review Officer (MRO) verification within 3 to 5 business days.

Customer Reviews

Very Fun and Easy

Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.

Tom O - 12/19/2024

Everything was great

Everything was great, the staff was very polite. Thank you.

Olga Petrova - 9/19/2024

Extremely polite

They were very fast extremely polite walked you through every detail of the process if you had any questions they had no problems answering

Billy Williams - 2/19/2025


(800) 221-4291