Drug & Alcohol Testing Near Me - Chester, 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

0 Drug-Testing Centers in Chester

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Drug Testing Near Me

Searching for drug testing locations near you in Chester, CA? Accredited Drug Testing, Inc. stands as a leading authority in immediate drug and alcohol testing services, featuring an expansive network of over 20,000 centers nationwide. Whether your needs involve a DOT-compliant test, legal-mandated screening, pre-hire evaluations, or even personal testing, our processes assure swift, seamless, and discreet scheduling options. Our certified facilities ensure dependable and preciseness in outcomes, aligning with both federal and Chester, CA-specific compliance requirements. By calling (800) 221-4291 or opting for our online 24/7 scheduling portal, you can promptly locate a drug testing center in your vicinity. For instances where safety, adherence to regulations, and peace of mind are priorities, Accredited Drug Testing is committed to timely and reliable result delivery.

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 remains the most prevalent method across Chester, CA and the U.S., being the sole option sanctioned for DOT-regulated drug testing under 49 CFR Part 40. This technique discerns recent drug use by assessing a urine specimen for traces of drugs, metabolites, or alcohol biomarkers. The procedure is uniform, secretive, and built to furnish accurate, legally sound outcomes for businesses, individuals, and judicial mandates.

Testing Methods & Collection Process

1. Donor Identity Verification

The donor provides authorized identification and adheres to chain-of-custody protocols prior to testing commencement.

2. Secure Collection Environment

Samples are gathered in controlled settings preventing tampering, with potential restrictions on personal items and secured facilities.

3. Chain of Custody Documentation

A national Chain of Custody Form (CCF) follows the specimen, upholding the test's integrity and legitimacy.

4. Temperature & Validity Checks

Right after collection, samples undergo temperature and appearance checks, alongside validity assessments in labs, including creatinine and pH evaluations.

5. DOT Split Specimen

DOT tests divide urine into two containers, where non-DOT requires only one for accuracy and possible retesting.

6. Laboratory Screening & Confirmation

Utilizing SAMHSA-certified laboratories for two-phase analysis, employing:

  • Initial Immunoassay Screening: Identifies drug classes.
  • Confirmation Testing: Precision identification of drugs/metabolites using GC/MS or LC/MS.

7. MRO Verification

A Medical Review Officer inspects non-negatives, confirms correctness, and investigates possible medical causes with the applicant.

Duration for Urine Test Outcomes

Additional time may be necessary for shy bladder issues, invalid samples, or needed confirmation and contact.

Advantages of Urine Drug & Alcohol Testing

Despite some limitations, urine testing remains the premier and extensively adopted method for drug and alcohol checks in Chester, CA and the rest of the U.S.

How Hair Drug Testing Works

In Chester, CA, hair testing stands as a comprehensive approach to detecting long-term substance use patterns. Unlike urine tests, which identify recent consumption, hair drug and alcohol testing extends the detection capability to a 90-day window. By examining metabolites entrenched in the hair, this test is ideal for employer workplace programs, legal situations, child custody disputes, and scenarios requiring detailed substance history insights.

Benefits of Hair Drug & Alcohol Testing

Limitations of Hair Drug & Alcohol Testing

Despite certain restrictions, hair testing's precision and resistance to alteration make it a top choice for assessing long-term substance use, making it indispensable for employers, legal professionals, and individuals looking for dependable results.

Alcohol & Drug Testing-How Each Method Works

Exploring Comprehensive Testing Options in Chester, CA with Accredited Drug Testing

Accredited Drug Testing extends a broad spectrum of drug and alcohol screenings, custom-designed to cater to various clientele be it employers, the Department of Transportation, legal entities, or individual needs. Familiarity with the workings of each test is pivotal for accurately selecting tests, yielding reliable outcomes, and ensuring compliance with both federal and Chester, CA state regulations. Our extensive network, amalgamated with certified labs and adept Medical Review Officers, assures precision, trust, and professionalism in rendering dependable testing solutions.

Alcohol Urine Drug Test

This test spotlights recent alcohol intake by tracing ethanol derivatives within urine samples, highly favored in workplace screenings, mandated court checks, and post-incident evaluations. Although it doesn't measure immediate impairment, it delivers a swift and affordable evaluation method.

ETG Alcohol Test (Urine)

Recognized for its sensitive detection capabilities extending up to 80 hours post-consumption, the EtG urine test finds frequent use in judicial systems, rehab programs, and regulatory monitoring agencies, outperforming traditional methods in timelines and reliability.

Breath Alcohol Test

Targeting active impairment analysis, breath alcohol tests scrutinize deep lung air alcohol levels through DOT-sanctioned devices. Besides DOT-supervised employees, breath tests feature often in workplace, incident-follow-up, and reasonable suspicion testing.

Blood Alcohol Test

Esteemed for pinpointing ethanol concentrations in the bloodstream directly, blood tests hold sway in determining impairment with unmatched accuracy. They serve extensively in hospitals, law enforcement, and legal spheres like DUI probes.

PEth Alcohol Blood Test

Detecting prolonged or substantial drinking by spotting unique alcohol markers in red blood cells, PEth tests widely assist in family law issues, rehabilitation supervision, treatment centers, and safety-centric job pre-screening.

ETG Alcohol Test (Hair)

Providing a comprehensive 90-day usage assessment by examining traces rooted in hair, the EtG hair test discerns recurrent habits, bolstering child custody and prolonged monitoring applications. Courts favor this method for its resistance against temporary abstinence attempts.

Thanks to Accredited Drug Testing's expert consultation, acclaimed laboratories, and swift scheduling, every test is designed to furnish unequivocal, transparent, and regulation-abiding outcomes, fostering security and compliance amongst employers and individuals alike.


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

Everything was great

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

Olga Petrova - 9/19/2024

Explained everything so no questions

Torin was great. Explained everything so no questions

Tony Lombardo - 4/18/2025

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

Great experience

Great experience and great lab. Customer service agent was very helpful.

Jenna Bee - 2/19/2025

quick to assist

They are very quick to assist with your orders and they helped when I needed to find a new testing facility.

Gary Matkin - 2/19/2025


Sources


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(800) 221-4291