Drug Testing Locations - Los Medanos, CA

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

38 Drug-Testing Centers in Los Medanos

Minutes Away, Test Today

3400 Delta Fair Blvd0.79 miles

3400 Delta Fair Blvd
Antioch, CA 94509

2339 Buchanan Rd0.79 miles

2339 Buchanan Rd
Antioch, CA 94509

1251 California Ave Ste 6001.08 miles

1251 California Ave Ste 600
Pittsburg, CA 94565

1901 Railroad Ave Ste B2.08 miles

1901 Railroad Ave Ste B
Pittsburg, CA 94565

3774 Railroad Ave Ste C2.12 miles

3774 Railroad Ave Ste C
Pittsburg, CA 94565

1001 Pittsburg Antioch Hwy Ste B2.86 miles

1001 Pittsburg Antioch Hwy Ste B
Pittsburg, CA 94565

3901 Lone Tree Way4.57 miles

3901 Lone Tree Way
Antioch, CA 94509

3450 Hillcrest Ave5.56 miles

3450 Hillcrest Ave
Antioch, CA 94531

4501 Sand Creek Rd6.97 miles

4501 Sand Creek Rd
Antioch, CA 94531

5167 Clayton Rd Ste H6.97 miles

5167 Clayton Rd Ste H
Concord, CA 94521

2400 Balfour Rd Ste 2309.59 miles

2400 Balfour Rd Ste 230
Brentwood, CA 94513

1181 Central Boulevard, Suite C9.65 miles

1181 Central Boulevard, Suite C
Brentwood, CA 94513

3901 Walnut Blvd Ste A-29.68 miles

3901 Walnut Blvd Ste A-2
Brentwood, CA 94513

2477 Pacheco St9.73 miles

2477 Pacheco St
Concord, CA 94520

2425 East Street, Suite 69.89 miles

2425 East Street, Suite 6
Concord, CA 94520

2540 East St9.90 miles

2540 East St
Concord, CA 94520

2090 Commerce Ave10.66 miles

2090 Commerce Ave
Concord, CA 94520

2231 Galaxy Ct10.68 miles

2231 Galaxy Ct
Concord, CA 94520

320 Lennon Ln Fl 210.94 miles

320 Lennon Ln Fl 2
Walnut Creek, CA 94598

2280 Diamond Blvd Ste 52011.36 miles

2280 Diamond Blvd Ste 520
Concord, CA 94520

108 La Casa Via, Ste 10512.15 miles

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

401 Gregory Ln, Ste 14612.52 miles

401 Gregory Ln, Ste 146
Pleasant Hill, CA 94523

609 Gregory Ln Ste 10012.90 miles

609 Gregory Ln Ste 100
Pleasant Hill, CA 94523

1981 N Broadway Ste 19013.16 miles

1981 N Broadway Ste 190
Walnut Creek, CA 94596

1805 Arnold Dr13.27 miles

1805 Arnold Dr
Martinez, CA 94553

1425 S Main St13.54 miles

1425 S Main St
Walnut Creek, CA 94596

827 Arnold Dr Ste 7014.21 miles

827 Arnold Dr Ste 70
Martinez, CA 94553

3237 Alhambra Ave Ste 215.05 miles

3237 Alhambra Ave Ste 2
Martinez, CA 94553

200 Muir Rd Hacienda Bldg, 1st Floor15.34 miles

200 Muir Rd Hacienda Bldg, 1st Floor
Martinez, CA 94553

538 Stone Rd Ste G15.49 miles

538 Stone Rd Ste G
Benicia, CA 94510

5601 Norris Canyon Rd Ste 14016.81 miles

5601 Norris Canyon Rd Ste 140
San Ramon, CA 94583

6001 Norris Canyon Rd Ste 14216.81 miles

6001 Norris Canyon Rd Ste 142
San Ramon, CA 94583

2301 Camino Ramon Ste 10816.94 miles

2301 Camino Ramon Ste 108
San Ramon, CA 94583

1100 Rose Dr Ste 14018.92 miles

1100 Rose Dr Ste 140
Benicia, CA 94510

2042 Columbus Pkwy,19.01 miles

2042 Columbus Pkwy,
Benicia, CA 94510

4000 Dublin Blvd Ste 15020.72 miles

4000 Dublin Blvd Ste 150
Dublin, CA 94568

1411 Oliver Road, Suite 13020.99 miles

1411 Oliver Road, Suite 130
Fairfield, CA 94534

7667 Amador Valley Blvd21.00 miles

7667 Amador Valley Blvd
Dublin, CA 94568

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing conducts in-depth alcohol and drug screenings through our 38 testing centers in the Los Medanos, California vicinity. We specialize in both DOT and non-DOT urine analysis, breathalyzer tests, EtG alcohol assessment, and hair follicle examinations for personal, corporate, and legal purposes. In Los Medanos, CA, we ensure expedient test results and SAMSA-certified lab analysis, offering same-day services with most testing centers conveniently located near your residence or workplace. Additional offerings include Occupational Health evaluations, Clinical Testing, and Background Verifications.

Dial (800) 221-4291 or register online. Choose your preferred test and nearby center—our services cater to you, your employees, or other individuals. Scheduling is quick and efficient; contact our scheduling team or book your appointment online at any hour. Our efficient and intuitive process simplifies coordinating drug testing in Los Medanos.

* 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.

Los Medanos, CA Drug Testing

Drug Testing Services Available at Our Los Medanos, CA Labs:

At our Los Medanos 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 Los Medanos, CA

Los Medanos, California Statistics

In Los Medanos, Contra Costa County, opioid-related overdoses increased by 15% over the last year.

Methamphetamine arrests in Los Medanos, Contra Costa County, rose by 12% in the past 12 months.

Los Medanos, in Contra Costa County, reported a 20% increase in cannabis-related medical emergencies.

Los Medanos, Contra Costa County, saw a 10% rise in drug possession arrests in the last year.

Contra Costa County, including Los Medanos, witnessed a 25% spike in fentanyl-related incidents.

Los Medanos experienced a 5% decrease in drug-related thefts in the last fiscal year within Contra Costa 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 Los Medanos, CA & Drug Testing Policies

Employers in Los Medanos, CA, implement strict drug-testing policies to ensure workplace safety. Pre-employment screenings and random drug tests are standard practices. Local businesses adhere to state guidelines and participate in the California Department of Industrial Relations programs.

Small and large companies alike emphasize maintaining a drug-free environment to promote productivity and employee well-being. Resources and support are often available through the California Chamber of Commerce, assisting employers in compliance and policy development.

Government Efforts with Drug Problems in Los Medanos, CA

Government efforts in Los Medanos, CA, aim to tackle drug issues through community programs. These initiatives focus on awareness and education. The Contra Costa County Health Services provides resources to combat substance abuse and improve public health.

The city collaborates with state and federal agencies to increase funding for treatment facilities. The California Department of Health Care Services and the Substance Abuse and Mental Health Services Administration are key partners in these efforts.

Local Drug Busts & News in Los Medanos, CA

Recent drug busts in Los Medanos, CA, highlight ongoing challenges in the community. A significant operation led to the seizure of large quantities of methamphetamine and cocaine, showcasing efforts by law enforcement to curb drug trafficking.

Community events aimed at raising awareness, such as drug take-back days, are held regularly. These events provide residents with safe disposal options for unused medications, reducing the risk of misuse and environmental harm.

Collaborative operations between local police and federal agencies have resulted in multiple arrests and the dismantling of drug distribution rings, reflecting concerted efforts to eliminate illegal drug activity in the region.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Los Medanos, 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

Contra Costa Alcohol & Drug Services

Recovery.org Los Medanos Resources

211 Bay Area Contra Costa

Addiction Policy Forum California

Around the Doorstep Recovery Services CA

California DHCS Mental Health & Drug Services

Partnership in Carroll County (Local Focus)

SAMHSA Find Treatment

CRC Health California

Grace Hope City Recovery CA

Los Medanos Drug Testing

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

Los Medanos DOT Drug Testing

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

Los Medanos DNA Testing

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

Los Medanos Industry Training

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

Los Medanos Hair Drug Testing

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

Los Medanos Alcohol Testing

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

Los Medanos Drug Testing Services

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

Los Medanos 5 Panel Drug Test

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

Los Medanos 10 Panel Drug Test

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

Los Medanos On Site Drug Testing

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

Los Medanos DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Los Medanos, 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