Drug Testing Locations - Diablo, CA

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

36 Drug-Testing Centers in Diablo

Minutes Away, Test Today

5167 Clayton Rd Ste H5.85 miles

5167 Clayton Rd Ste H
Concord, CA 94521

320 Lennon Ln Fl 27.14 miles

320 Lennon Ln Fl 2
Walnut Creek, CA 94598

108 La Casa Via, Ste 1057.36 miles

108 La Casa Via, Ste 105
Walnut Creek, CA 94598

6001 Norris Canyon Rd Ste 1427.68 miles

6001 Norris Canyon Rd Ste 142
San Ramon, CA 94583

5601 Norris Canyon Rd Ste 1407.68 miles

5601 Norris Canyon Rd Ste 140
San Ramon, CA 94583

2301 Camino Ramon Ste 1087.81 miles

2301 Camino Ramon Ste 108
San Ramon, CA 94583

1425 S Main St7.90 miles

1425 S Main St
Walnut Creek, CA 94596

1981 N Broadway Ste 1908.21 miles

1981 N Broadway Ste 190
Walnut Creek, CA 94596

3774 Railroad Ave Ste C8.60 miles

3774 Railroad Ave Ste C
Pittsburg, CA 94565

2339 Buchanan Rd8.90 miles

2339 Buchanan Rd
Antioch, CA 94509

1001 Pittsburg Antioch Hwy Ste B9.19 miles

1001 Pittsburg Antioch Hwy Ste B
Pittsburg, CA 94565

3901 Lone Tree Way9.20 miles

3901 Lone Tree Way
Antioch, CA 94509

3400 Delta Fair Blvd9.32 miles

3400 Delta Fair Blvd
Antioch, CA 94509

2477 Pacheco St9.34 miles

2477 Pacheco St
Concord, CA 94520

1251 California Ave Ste 6009.39 miles

1251 California Ave Ste 600
Pittsburg, CA 94565

2425 East Street, Suite 69.56 miles

2425 East Street, Suite 6
Concord, CA 94520

2540 East St9.61 miles

2540 East St
Concord, CA 94520

2090 Commerce Ave9.70 miles

2090 Commerce Ave
Concord, CA 94520

1901 Railroad Ave Ste B9.72 miles

1901 Railroad Ave Ste B
Pittsburg, CA 94565

2231 Galaxy Ct9.81 miles

2231 Galaxy Ct
Concord, CA 94520

401 Gregory Ln, Ste 1469.85 miles

401 Gregory Ln, Ste 146
Pleasant Hill, CA 94523

4501 Sand Creek Rd10.00 miles

4501 Sand Creek Rd
Antioch, CA 94531

609 Gregory Ln Ste 10010.15 miles

609 Gregory Ln Ste 100
Pleasant Hill, CA 94523

3450 Hillcrest Ave10.36 miles

3450 Hillcrest Ave
Antioch, CA 94531

2280 Diamond Blvd Ste 52010.39 miles

2280 Diamond Blvd Ste 520
Concord, CA 94520

2400 Balfour Rd Ste 23011.48 miles

2400 Balfour Rd Ste 230
Brentwood, CA 94513

7667 Amador Valley Blvd12.06 miles

7667 Amador Valley Blvd
Dublin, CA 94568

3901 Walnut Blvd Ste A-212.19 miles

3901 Walnut Blvd Ste A-2
Brentwood, CA 94513

1181 Central Boulevard, Suite C12.30 miles

1181 Central Boulevard, Suite C
Brentwood, CA 94513

4000 Dublin Blvd Ste 15012.42 miles

4000 Dublin Blvd Ste 150
Dublin, CA 94568

1805 Arnold Dr12.62 miles

1805 Arnold Dr
Martinez, CA 94553

4847 Hopyard Rd Ste 4-42413.12 miles

4847 Hopyard Rd Ste 4-424
Pleasanton, CA 94588

5720 Stoneridge Mall Road, Suite 11013.17 miles

5720 Stoneridge Mall Road, Suite 110
Pleasanton, CA 94588

7601 Stoneridge Dr Fl 113.23 miles

7601 Stoneridge Dr Fl 1
Pleasanton, CA 94588

3128 Santa Rita Rd13.35 miles

3128 Santa Rita Rd
Pleasanton, CA 94566

5635 W Las Positas Blvd13.51 miles

5635 W Las Positas Blvd
Pleasanton, CA 94588

Employment, DOT, Court Ordered, Probation, Family

At our 36 testing sites throughout Diablo, California, Accredited Drug Testing provides extensive services for drug and alcohol screening. We cater to individual, employer, and legal needs with DOT, non-DOT urine drug tests, breathalyzer tests for alcohol, EtG tests, and hair drug screenings. Our Diablo centers, conveniently located near your workplace or residence, offer swift result options and SAMSA certified lab analyses, often with same-day availability. In addition, we provide Occupational Health Testing, Clinical Testing, and Background Check services.

To schedule a test, either call (800) 221-4291 or register online. Select your desired test and locate a center close by—testing is available for personal, employee, or other individual needs. Our scheduling process is fast and seamless; contact our department or make arrangements online at any time. Our easy-to-use system facilitates setting up drug screenings in the Diablo area efficiently.

* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.

When you're searching for drug testing near me or drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.

Diablo, CA Drug Testing

Drug Testing Services Available at Our Diablo, CA Labs:

At our Diablo drug testing collection sites, Accredited Drug Testing provides one of the widest selections of drug and alcohol testing services available. Whether you're an employer, attorney, court, or private individual, we offer both DOT and non-DOT testing options—ranging from rapid tests to comprehensive lab-based screenings—capable of detecting nearly any substance.

Mobile/On-Site Drug Testing

If you're an employer needing to test 25 or more employees and looking to save time and money, we offer mobile on-site drug testing where we come to you. Call us today for more information.

Drug Testing in Diablo, CA

Diablo, California Statistics

In 2022, Contra Costa County reported a 15% increase in drug-related arrests.

Diablo, CA, had 25 opioid overdoses reported in 2020, a 10% rise from 2019.

Marijuana possession cases peaked at 150 in Diablo within Contra Costa County in 2021.

Contra Costa County's rehab admissions for meth increased by 20% last year.

Diablo's underage alcohol use reports in 2021 rose by 8% within the county.

How does the body eliminate Drugs

Drug elimination is the sum of the processes of removing an administered drug from the body. In the pharmacokinetic ADME scheme (absorption, distribution, metabolism, and excretion), it is frequently considered to encompass both metabolism and excretion. Hydrophobic drugs, to be excreted, must undergo metabolic modification making them more polar. Hydrophilic drugs, on the other hand, can undergo excretion directly, without the need for metabolic changes to their molecular structures.

Although many sites of metabolism and excretion exist, the chief organ of metabolism is the liver, while the organ primarily tasked with excretion is the kidney. Any significant dysfunction in either organ can result in the accumulation of the drug or its metabolites in toxic concentrations.

A variety of other factors impact elimination — intrinsic drug properties, such as polarity, size, or pKa. Also other factors include genetic variation among individuals, disease states affecting other organs, and pathways involved in the way the drug distributes through the body, such as first-pass metabolism.

Issues of Concern

Drug elimination is the removal of an administered drug from the body. It is accomplished in two ways, either by excretion of an unmetabolized drug in its intact form or by metabolic biotransformation followed by excretion. While excretion is primarily carried out by the kidneys, other organ systems are involved as well. Similarly, the liver is the primary site of biotransformation, yet extrahepatic metabolism takes place in a variety of organ systems affecting multiple drugs.

Given the multiple organ systems and the variety of metabolic transformations present, drug elimination can entail a significant degree of complexity. Hydrophilic drugs are typically directly excreted by the kidneys, while hydrophobic drugs undergo biotransformation before excretion. The purpose here is twofold – biotransformation serves both detoxify the exogenous substances as well as to increase their hydrophilicity, ensuring their elimination via the kidneys.

Two broad metabolic pathways of hepatic drug transformation exist. Phase I is the direct modification of the target molecule, whereas phase II entails conjugation of the target to a polar molecule of low molecular weight. Phase I prepare the drug to enter phase II, but single-phase metabolism also exists.

Phase I involves oxidation, reduction, and hydrolysis of the exogenous molecule. These reactions are accomplished by hepatic microsomal enzymes, which reside in the smooth endoplasmic reticulum of the hepatocytes. Best known among them is the cytochrome P450 system, whose enzymes are predominantly involved in oxidative metabolism. Within the cytochrome P450 family (CYP), the enzyme responsible for the metabolism of more than 50% of existing drugs is the CYP3A4. Its activity encompasses various classes of medications, including opioids, immunosuppressants, antihistamines, and benzodiazepines. The enzymes can also be induced or inhibited by a variety of substances they interact with, including pharmaceuticals. The increase in metabolic activity with CYP induction results in a diminished activity of drugs targeted by that particular isoform. Conversely, CYP inhibition will result in increased drug plasma concentration, potentially leading toxicity. The CYP3A4 is induced by phenytoin, phenobarbital, and St. John's wort, while diltiazem, erythromycin, and grapefruit inhibit it. Caution is, therefore, necessary when administering CYP3A4-metabolized drugs in the presence of any of the inhibitors or inducers.

Phase II consists of covalent bonding of polar groups to nonpolar molecules to render them water-soluble and allow renal or biliary excretion. Target molecules enter phase II directly or via initial processing through phase I. A variety of polar adjuncts is transferred, including amino acids, glucuronic acid, glutathione, acetate, and sulfate. Glucuronidation is one of the major pathways of phase II biotransformation. The UDP-glucuronosyltransferase (UGT) enzyme family performs this activity. Typically, glucuronide derivatives possess less or no activity of the original drug, but in some cases, pharmacologically active compounds result. Morphine-6-glucuronide is a phase II metabolite of morphine with significant analgesic activity. As with the CYP enzymes, inducers, and inhibitors of phase II, enzymes exist and may influence the efficacy of drugs that rely on conjugation before excretion.

The first-pass effect is a feature of hepatic metabolism that also plays a role in the elimination of multiple drugs. Here, the enteric consumed drugs are exposed directly to the liver via the portal vein, where they undergo biotransformation before entering the systemic circulation. This activity reduces the bioavailability and needs to be factored into the dose administered to the patient. Intravenously administered drugs are not subject to the first-pass effect.

Extrahepatic drug metabolism takes place in the GI tract, kidneys, lungs, plasma, and skin.

Renal excretion completes the process of elimination that begins in the liver. Polar drugs or their metabolites get filtered in the kidneys and typically do not undergo reabsorption. They subsequently get excreted in the urine. Urinary pH has a significant impact on excretion, as drug ionization changes depending on the alkaline or acidic environment. Increased excretion occurs with weakly acidic drugs in basic urine and weakly basic drugs in acidic urine.

Excretion in the bile is another significant form of drug elimination. The liver can actively secrete ionized drugs with a molecular weight greater than 300 g/mol into bile, from where they reach the digestive tract and are either eliminated in feces or reabsorbed as part of the enterohepatic cycle.

Other pathways of excretion include the lungs, breast milk, sweat, saliva, and tears

Employers in Diablo, CA & Drug Testing Policies

Employers in Diablo, CA, have recognized the importance of maintaining a drug-free workplace. Many have adopted stringent drug testing policies, aligning with federal guidelines. Regular and random testing helps ensure safety and productivity.

Some local businesses work closely with the California Chamber of Commerce to stay updated on legal requirements and effective testing policies. They also provide counseling and assistance programs for employees struggling with substance abuse.

There is a growing trend among employers to promote wellness programs that educate employees about the risks associated with drug use, contributing to a healthier work environment.

Government Efforts with Drug Problems in Diablo, CA

The government of Diablo, CA, through Contra Costa County, has been making concerted efforts to address drug problems in the region. This includes collaboration with agencies like Contra Costa Health Services to provide treatment and prevention programs.

On the state level, California has funded initiatives through the California Department of Health Care Services, focusing on drug abuse education and support services. Federal efforts are also present, providing grants for community-based programs.

Local Drug Busts & News in Diablo, CA

In recent years, Diablo, CA, has seen several impactful local drug busts, highlighting ongoing issues within Contra Costa County. In a notable case in early 2023, law enforcement agencies dismantled a large operation involving methamphetamine distribution.

These events underscore the necessity for continued vigilance and cooperation between local authorities and the community. Through coordinated efforts, they aim to disrupt the supply of illegal substances.

The community often holds awareness events and workshops, spearheaded by local advocacy groups, to educate citizens about the dangers of drug abuse and foster community engagement in combating these challenges.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Diablo, CA. Trusted by employers nationwide for accurate results and exceptional service.

California DOT/Non DOT Physicals

California Vision Tests

California Audiograms

California Respirator Fit Tests

California Lift Tests

California Background Checks

Resources & Citations

Addiction Center

Recovery.org

SAMHSA National Helpline

Contra Costa Health Services AOD Program

National Institute on Drug Abuse

DrugRehab.org

Shatterproof

Narcan

California Department of Public Health

California State Government

Diablo Drug Testing

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

Diablo DOT Drug Testing

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

Diablo DNA Testing

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

Diablo Industry Training

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

Diablo Hair Drug Testing

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

Diablo Alcohol Testing

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

Diablo Drug Testing Services

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

Diablo 5 Panel Drug Test

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

Diablo 10 Panel Drug Test

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

Diablo On Site Drug Testing

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

Diablo DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Diablo, 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

Yes. Accredited Drug Testing maintains access to numerous collection sites nationwide, so in most cases a testing location is available close to a donor’s home, workplace, or job site. Same-day scheduling is often possible for both drug and alcohol testing needs.
Employers, DOT-regulated companies, attorneys, courts, probation departments, and private individuals all use Accredited Drug Testing locations. You do not need to be part of a large company to request testing — individuals can order testing directly.
Locations support urine drug tests, hair follicle drug tests, saliva/oral fluid drug tests, instant/rapid screening (where permitted), and evidential breath alcohol testing. Post-accident and reasonable suspicion testing are also available.
Yes. Accredited Drug Testing supports DOT-compliant urine drug testing and evidential breath alcohol testing following 49 CFR Part 40 requirements. This includes pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing for safety-sensitive employees.
In many cases, yes. Same-day or next-day appointments can typically be arranged. This is especially important for urgent needs such as post-accident, reasonable suspicion, court deadlines, or probation compliance.
Yes. Results are released only to the authorized recipient — for example, an employer’s designated representative, the court or probation contact, or the individual who ordered the test. Results are handled securely and are suitable for policy enforcement and legal documentation.
Yes. Accredited Drug Testing offers on-site and mobile collections for employers. Mobile testing is useful for post-accident response, reasonable suspicion situations, high-volume hiring events, and remote job sites where sending employees offsite would cause downtime.
No. You do not need a physician's prescription to request most drug or alcohol tests. Individuals, employers, attorneys, and probation officers can schedule testing directly and send the donor to the assigned collection site.

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

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

Super helpful and courteous

I've had to use this service twice for out of state physicians we've hired and both times it was super easy. Both customer service reps I spoke with were super helpful and courteous. I won't hesitate to use their service again if needed.

Alicia Rau - 6/19/2024


(800) 221-4291