Drug & Alcohol Testing Near Me - San Mateo, CA

Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.  

Employment, DOT, Court Ordered, Personal
Urine | Hair Follicle | Oral Fluid | Blood | ETG

39 Drug-Testing Centers in San Mateo

Minutes Away, Test Today

60 N El Camino Real1.07 miles

60 N El Camino Real
San Mateo, CA 94401

222 W 39th Ave2.69 miles

222 W 39th Ave
San Mateo, CA 94403

1860 El Camino Real Ste 4003.46 miles

1860 El Camino Real Ste 400
Burlingame, CA 94010

1098 Foster City Blvd, Ste 1023.81 miles

1098 Foster City Blvd, Ste 102
Foster City, CA 94404

1501 Trousdale Dr3.84 miles

1501 Trousdale Dr
Burlingame, CA 94010

1663 Rollins Rd3.95 miles

1663 Rollins Rd
Burlingame, CA 94010

125 Shoreway Rd Ste A4.55 miles

125 Shoreway Rd Ste A
San Carlos, CA 94070

1100 Laurel Street, Suite F5.89 miles

1100 Laurel Street, Suite F
San Carlos, CA 94070

170 Alameda De Las Pulgas6.86 miles

170 Alameda De Las Pulgas
Redwood City, CA 94062

801 Traeger Ave Ste 2126.96 miles

801 Traeger Ave Ste 212
San Bruno, CA 94066

3 S Linden Ave7.73 miles

3 S Linden Ave
South San Francisco, CA 94080

1400 Veterans Blvd Fl 17.74 miles

1400 Veterans Blvd Fl 1
Redwood City, CA 94063

International Terminal Level 3 A Side8.56 miles

International Terminal Level 3 A Side
San Francisco, CA 94128

1900 Sullivan Ave11.54 miles

1900 Sullivan Ave
Daly City, CA 94015

On-site Only11.88 miles

On-site Only
San Francisco, CA 94124

Sfia Terminal 211.91 miles

Sfia Terminal 2
San Francisco, CA 94125

300 Pasteur Dr12.03 miles

300 Pasteur Dr
Palo Alto, CA 94304

795 El Camino Real12.25 miles

795 El Camino Real
Palo Alto, CA 94301

26250 Industrial Blvd Ste 3212.74 miles

26250 Industrial Blvd Ste 32
Hayward, CA 94545

1555 Doolittle Dr Ste 18012.82 miles

1555 Doolittle Dr Ste 180
San Leandro, CA 94577

2587 Merced St13.00 miles

2587 Merced St
San Leandro, CA 94577

29000 Hesperian Blvd13.54 miles

29000 Hesperian Blvd
Hayward, CA 94545

3555 Whipple Rd13.60 miles

3555 Whipple Rd
Union City, CA 94587

27200 Calaroga Ave13.79 miles

27200 Calaroga Ave
Hayward, CA 94545

3555 Cesar Chavez13.82 miles

3555 Cesar Chavez
San Francisco, CA 94110

401 Roland Way Ste 20513.95 miles

401 Roland Way Ste 205
Oakland, CA 94621

2111 Whitehall Place, Suite D14.13 miles

2111 Whitehall Place, Suite D
Alameda, CA 94501

7901 Oakport St Ste 4950 2nd Floor14.23 miles

7901 Oakport St Ste 4950 2nd Floor
Oakland, CA 94621

7817 Oakport St14.26 miles

7817 Oakport St
Oakland, CA 94621

2421 Encinal Ave Ste A14.48 miles

2421 Encinal Ave Ste A
Alameda, CA 94501

13939 E 14th St14.51 miles

13939 E 14th St
San Leandro, CA 94578

2 Connecticut St Ste 114.59 miles

2 Connecticut St Ste 1
San Francisco, CA 94107

35500 Dumbarton Ct15.02 miles

35500 Dumbarton Ct
Newark, CA 94560

2198 15th St,15.21 miles

2198 15th St,
San Francisco, CA 94114

Castro & Duboce St, South Tower Ste 160a15.27 miles

Castro & Duboce St, South Tower Ste 160a
San Francisco, CA 94114

24326 Mission Blvd Ste 315.30 miles

24326 Mission Blvd Ste 3
Hayward, CA 94544

24 Willie Mays Plz15.33 miles

24 Willie Mays Plz
San Francisco, CA 94107

33077 Alvarado Niles Rd15.62 miles

33077 Alvarado Niles Rd
Union City, CA 94587

505 Parnassus Ave Ste 89615.63 miles

505 Parnassus Ave Ste 896
San Francisco, CA 94143

Drug Testing Near Me

Searching for drug testing nearby? Accredited Drug Testing, Inc., highly regarded across the United States, offers same-day testing for drugs and alcohol in over 20,000 locations, including San Mateo, CA. Whether your needs include a DOT-approved test, court-mandated screening, pre-employment drug assessments, or personal inquiries, we ensure a swift, straightforward, and private scheduling experience. Our authorized collection facilities and labs deliver precise, dependable results that adhere to federal and San Mateo, CA state regulations. For a streamlined experience, contact us at (800) 221-4291 or conveniently schedule online anytime to locate an accessible testing center in San Mateo, CA near you. When it comes to prioritizing safety, compliance, and tranquility, Accredited Drug Testing provides reliable results promptly, every single time.

Drug and Alcohol Testing Options

Urine Drug Testing Available Panels
5 Panel Drug Test (DOT/NON DOT)
5 Panel + Alcohol Drug Test
5 Panel + ETG Alcohol Drug Test
10 Panel Drug Test
10 Panel + ETG Alcohol Drug Test
12 Panel Drug Test
Hair Drug Testing Available Panels
5 Panel Hair Drug Test
5 Panel + ETG Hair Drug Test
10 Panel Hair Drug Test
12 Panel Hair Drug Test
14 Panel Hair Drug Test
16 Panel Hair Drug Test
Alcohol Drug Testing Available Panels
Alcohol Urine Drug Test
ETG Alcohol Test (Urine)
Breath Alcohol Test
Blood Alcohol Test
Peth Alcohol Blood Test
ETG Alcohol Test (Hair)

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

How Urine Drug Testing Works

Urine drug testing is the predominant method for drug screens nationwide and stands as the sole test type recognized for DOT-regulated drug testing under federal regulation 49 CFR Part 40. It successfully identifies recent substance exposure through a urine sample, searching for drugs, drug metabolites, and notable alcohol biomarkers. This method's rigorous standardization and confidentiality protocols deliver legally sound and accurate results, suitable for employers or individuals and necessary court orders in San Mateo, CA.

Testing Methods & Collection Process

1. Donor Identity Verification

To begin, the test donor presents a valid government ID and completes chain-of-custody form signatures.

2. Secure Collection Environment

The process involves collecting urine in a monitored restroom setting, eliminating tampering risks. Securing personal items, the water taps, and adding dye to toilet water are standard procedures in San Mateo, CA collections.

3. Chain of Custody Documentation

A federally approved Chain of Custody Form (CCF) is used to maintain test integrity and trace the specimen from collection onward.

4. Temperature & Validity Checks

After collection, the specimen undergoes immediate temperature and appearance checks by the collector. This is followed by lab-based validity tests, measuring specific gravity, creatinine, pH levels, and screening for adulterants.

5. DOT Split Specimen

For DOT tests, the sample is split into two vials: Bottle A for initial evaluation and Bottle B for possible retesting upon dispute. Conversely, non-DOT tests involve collecting a single vial.

6. Laboratory Screening & Confirmation

Certified laboratories, including those in San Mateo, CA, conduct testing in two phases:

  • Initial Immunoassay Screen: Identifies drug classes.
  • Confirmation Testing: Utilizes GC/MS or LC/MS technology for verifying specific drug substances and metabolites.

7. MRO Verification

A licensed Medical Review Officer (MRO) evaluates any non-negative outcomes, ensuring their veracity through review discussions with donors before final results are officially confirmed.

Duration for Receiving Urine Test Outcomes

  • Instant Urine Test: Negative results available same-day, while positives are submitted for lab reevaluation which spans 24-72 hours.
  • Lab-Based Urine Test: Returns most negative results within 24-48 hours.
  • DOT Drug Test: Typically requires 1-3 business days, contingent on MRO analysis and donor communications.
  • Urine EtG Alcohol Test: Concludes within a 24-48 hour window.

Extended timeframes might be necessitated by shy bladder conditions, invalid specimen issues, or when further laboratory confirmation along with donor verification becomes necessary.

Advantages of Urine Drug & Alcohol Screening

  • Recognized by DOT: It is the only DOT-approved and federally endorsed testing method.
  • Ideal for detecting recent use, making it key for workplace safety and post-incident reviews.
  • Offers expediency and cost-effectiveness.
  • Acceptance is widespread among courts, employers, and various government agencies.
  • Options for immediate tests are accessible for quicker screenings.
  • Showcases high accuracy, confirmed through GC/MS or LC/MS technologies.

Limitations of Urine Drug & Alcohol Screening

  • Detection spans modest durations (typically 1-7 days for most substances).
  • Potential risks for manipulation if security measures lack strength.
  • Lacks the capability to tell long-term substance histories.
  • Operates in environments needing specific restroom setups and collection methods.
  • Standard urine screens omit alcohol detection unless EtG/EtS analysis is engaged.

Despite certain constraints, urine testing prevails as the most viable and extensively implemented screening tool across the nation for drugs and alcohol.

How Hair Drug Testing Works

Hair drug and alcohol testing stands out as a highly reliable laboratory technique uniquely qualified to trace long-term substance use patterns. Unlike urine tests, which identify recent consumption, hair testing boasts an extensive 90-day detection period because it examines drug metabolites entwined in the hair shaft. This feature makes hair testing indispensable in workplace programs, court hearings, custody disputes, and any scenario necessitating an extended perspective on an individual's usage history, especially relevant in San Mateo, CA.

Testing Methods & Collection Process

1. Donor Identity Verification

Prior to collecting, a valid government-issued ID is presented by the donor, with all required consent and chain-of-custody documentation being finalized to secure comprehensive paperwork.

2. Hair Collection Procedure

A professional technician extracts a modest hair sample typically amounting to 100-120 strands clipped closely to the scalp. The process generally uses hair from the crown of the head, although body hair may be utilized as a secondary option. This collection process is swift, non-invasive, and conducted under strict supervision.

3. Chain of Custody Documentation

A Hair Drug Test Custody and Control Form is filled out to chronicle the specimen's collection, sealing, and shipment, guaranteeing that results remain legally defensible throughout the process.

4. Laboratory Preparation & Analysis

Upon reaching the lab, the hair sample passes through several forensic phases:

The sample then experiences intensely precise laboratory tests:

5. Metabolite Detection

Over time, as hair grows, it entraps drug metabolites within its shaft, furnishing a stable, extended record of substance usage. Hair testing's resistance to manipulation or cheating is due to its metabolite integration process.

6. MRO Review

A credentialed Medical Review Officer examines all non-negative results, confirming correctness, assessing potential medical explanations, and delivering a conclusive result.

How Long Do Hair Test Results Take?

Although multi-step lab processing extends the analysis duration over urine tests, the consistent accuracy of hair testing is indisputable.

Benefits of Hair Drug & Alcohol Testing

  • Provides a 90-day detection period for sustained substance use monitoring.
  • Extreme difficulty to manipulate or tamper with.
  • Offers usage patterns as consistent, sporadic, or discontinued.
  • Optimal for legal proceedings, custody evaluations, and compliance monitoring programs.
  • Quick, non-invasive sampling method.
  • High-precision GC/MS or LC/MS confirmation testing.

Limitations of Hair Drug & Alcohol Testing

  • Incapable of capturing very recent drug intake (within the initial 5-7 days).
  • Incurs higher costs compared to urine or oral tests.
  • Body hair cannot divulge an exact timeline of intake.
  • Substance absorption varies by hair type and growth speed.
  • Non-compliance with DOT testing standards.

In spite of these limitations, hair testing remains among the most trustworthy methods for chronic substance use verification, favored by employers, legal experts, and individuals in San Mateo, CA seeking valid, tamper-evident outcomes.

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Alcohol & Drug Testing-How Each Method Works

Accredited Drug Testing in San Mateo, CA provides comprehensive alcohol and drug testing choices tailored for employers, DOT, legal, and personal needs. Understanding the functionality and application of each test is vital for making accurate choices, receiving reliable information, and maintaining compliance with both federal and San Mateo, CA regulations. Our broad national network, certified laboratories, and adept Medical Review Officers ensure the accuracy, trust, and professionalism necessary for reliable test results.

Alcohol Urine Drug Test

An alcohol urine test identifies recent alcohol intake by detecting ethanol metabolites in urine samples. This cost-effective method is common in workplace scenarios, legal obligations, and post-accident assessments, although it doesn't indicate current impairment, it provides a timeframe detection of several hours.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test offers a more prolonged detection window, revealing alcohol consumption up to 80 hours post-use. As a direct ethanol metabolite, EtG tests are highly precise and routinely utilized by legal systems, rehabilitation centers, and compliance agencies in San Mateo, CA.

Breath Alcohol Test

A breath alcohol test assesses current impairment levels by determining the alcohol concentration in deep lung air using DOT-certified breath alcohol instruments. These immediate outcomes are legally validated and often mandated for DOT personnel, workplace assessments, post-incident, and suspicion-related contexts.

Blood Alcohol Test

A blood alcohol test quantifies the amount of ethanol in the bloodstream, considered one of the most reliable methods for confirming intoxication, favored by hospitals, law officials, and San Mateo, CA legal organizations, especially in DUI, emergency, or critical legal situations.

PEth Alcohol Blood Test

The PEth (Phosphatidylethanol) blood test detects prolonged or heavy alcohol intake by isolating specific alcohol biomarkers, observable up to 2-3 weeks. Strongly indicative of long-term drinking patterns, these tests are implemented in family, legal, and employment sectors demanding safety and security.

ETG Alcohol Test (Hair)

The EtG hair alcohol test evaluates alcohol consumption over a 90-day period by inspecting metabolites situated in hair strands, capturing patterns of chronic or continual use rather than sporadic intake. San Mateo, CA courts and monitoring programs rely on this stable and precise method.

Through expert advisory, nationally accredited labs, and speedy scheduling, Accredited Drug Testing guarantees that each alcohol examination method delivers clear, defensible, and compliant results, aiding both individuals and employers to stay informed and aligned with regulatory demands in San Mateo, CA.


Accredited Drug Testing provides nationwide drug and alcohol screening solutions, including urine, hair, EtG, PEth, and breath alcohol testing. Backed by SAMHSA-certified laboratories, DOT 49 CFR Part 40 compliance, and scientifically validated testing technology, our services ensure accurate, defensible, and confidential results for employers, courts, and individuals.

Frequently Asked Questions

Urine tests detect recent use and are the only option approved for DOT testing under 49 CFR Part 40. Hair tests provide a 90-day detection window per the Society of Hair Testing (SoHT). Alcohol testing options, EtG, breath, blood, or PEth. These tests can identify recent use, impairment, or long-term drinking behavior depending on the method.

Urine: 24 - 48 hrs for negatives (SAMHSA guidelines).
Hair: 2 - 5 business days due to multi-step forensic processing (SoHT).
Breath Alcohol: Immediate results using NHTSA-approved EBT devices.
PEth: 3 - 5 days based on forensic toxicology studies.

Lab confirmation using GC/MS or LC/MS is the gold standard per SAMHSA & DOT.
Hair testing is highly tamper-resistant (SoHT).
PEth is considered the most reliable marker of repeated drinking (Journal of Analytical Toxicology).

No. DOT-regulated urine tests require validity checks and chain-of-custody documentation (49 CFR Part 40). Hair tests undergo decontamination and metabolite extraction (SoHT), making them extremely difficult to adulterate.

EtG urine detects alcohol for up to 80 hours (NIH/SAMHSA studies). EtG hair detects chronic alcohol consumption for up to 90 days (SoHT alcohol guidelines).

5 Panel DOT:49 CFR Part 40. Expanded non-DOT panels add benzodiazepines, barbiturates, methadone, oxycodone, MDMA, fentanyl, and more (SAMHSA forensic panel standards).

PEth blood testing identifies long-term and heavy alcohol use for 2 - 4 weeks. Used in child custody, treatment monitoring, and professional compliance programs (CDC & Journal of Analytical Toxicology).

Hair testing does not detect drug use within the past 5 - 7 days. It identifies long-term or repetitive use patterns per SoHT standards.

Yes. Results follow strict chain-of-custody procedures, DOT/SAMHSA requirements, GC/MS or LC/MS confirmation, and MRO review; making them acceptable in court, DOT, and legal settings.

Yes. Accredited Drug Testing offers same-day appointments at 20,000+ locations nationwide, instant testing options, and onsite employer testing with bulk discounts.

Customer Reviews

ADT is truly the best

Where do I start?!! ADT is truly the best!! I had the pleasure of speaking with Tori today! She was excellent, professional and truly went above and beyond in her kind, compassionate care and commitment to providing me with the best service possible. I was in such a time crunch, but I was able to call, order the test, pay for it over the phone and get the test I needed within the hour. Not only did this put my mind at ease, they saved my job!! I am forever grateful for this team of hard workers, that care, with such great work ethics! Thank you from the very bottom of my heart!!! If you need a drug, alcohol, etc… screening, this team will be your lifesavers!!

Sarah Patterson - 4/8/2025

Extremely pleasant

Initially Torrie helped me but I needed to call back. When I called back Kayla stepped in and finished my order. Both were extremely pleasant over the phone and provided wonderful customer service. Kudos to them!

Brynne Beverly - 4/19/2024

Polite

I ran into a situation because the Guthrie had closed and I had to go to well care and they were right on it. I had no problems when I called to get connected with welcare everything worked out and I didn't even have to wait.they were polite and talked with the receptionist for me once I got them on the phone.

Sayre - 8/19/2024

Sweet and helpful

Trish was amazing and got me through the sytem very fast and swift. I had a hard time hearing her a couple of times, but she was super sweet and helpful throughout the process. Highly recommend her!

Sophia Schutze - 6/19/2024

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


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(800) 221-4291