Drug Testing Locations - Tara Hills, CA

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

39 Drug-Testing Centers in Tara Hills

Minutes Away, Test Today

2970 Hilltop Mall Rd Ste 2030.97 miles

2970 Hilltop Mall Rd Ste 203
Richmond, CA 94806

2425 Church Ln2.31 miles

2425 Church Ln
San Pablo, CA 94806

2000 Vale Rd2.77 miles

2000 Vale Rd
San Pablo, CA 94806

500 Alfred Nobel Drive, Suite 1153.15 miles

500 Alfred Nobel Drive, Suite 115
Hercules, CA 94547

3726 Barrett Ave3.78 miles

3726 Barrett Ave
Richmond, CA 94805

4749 Surrey Ln3.86 miles

4749 Surrey Ln
El Sobrante, CA 94803

520 6th St3.97 miles

520 6th St
Rodeo, CA 94572

120 Broadway Ste 234.21 miles

120 Broadway Ste 23
Richmond, CA 94804

901 Nevin Ave Bldg B Floor 14.29 miles

901 Nevin Ave Bldg B Floor 1
Richmond, CA 94801

2505 Bataan St Ste O8.03 miles

2505 Bataan St Ste O
Oakland, CA 94607

243 Georgia St Ste B8.35 miles

243 Georgia St Ste B
Vallejo, CA 94590

17 Tennessee St8.85 miles

17 Tennessee St
Vallejo, CA 94590

2042 Columbus Pkwy,9.35 miles

2042 Columbus Pkwy,
Benicia, CA 94510

2850 7th St Ste 1009.49 miles

2850 7th St Ste 100
Berkeley, CA 94710

1100 Rose Dr Ste 1409.52 miles

1100 Rose Dr Ste 140
Benicia, CA 94510

2450 Ashby Ave9.83 miles

2450 Ashby Ave
Berkeley, CA 94705

200 Muir Rd Hacienda Bldg, 1st Floor10.00 miles

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

3237 Alhambra Ave Ste 210.29 miles

3237 Alhambra Ave Ste 2
Martinez, CA 94553

975 Sereno Dr10.36 miles

975 Sereno Dr
Vallejo, CA 94589

25 Bellam Blvd Ste 10110.46 miles

25 Bellam Blvd Ste 101
San Rafael, CA 94901

6001 Shellmound St Ste 85010.49 miles

6001 Shellmound St Ste 850
Emeryville, CA 94608

300 Hospital Dr10.71 miles

300 Hospital Dr
Vallejo, CA 94589

827 Arnold Dr Ste 7011.13 miles

827 Arnold Dr Ste 70
Martinez, CA 94553

2 Fifer Ave Ste 13011.42 miles

2 Fifer Ave Ste 130
Corte Madera, CA 94925

101 Casa Buena Dr11.63 miles

101 Casa Buena Dr
Corte Madera, CA 94925

4069 Piedmont Ave Ste 91011.88 miles

4069 Piedmont Ave Ste 910
Oakland, CA 94611

3701 Broadway Fl 511.90 miles

3701 Broadway Fl 5
Oakland, CA 94611

1805 Arnold Dr12.07 miles

1805 Arnold Dr
Martinez, CA 94553

350 Hawthorne Ave12.10 miles

350 Hawthorne Ave
Oakland, CA 94609

3300 Webster St, Ste 111012.10 miles

3300 Webster St, Ste 1110
Oakland, CA 94609

1220 S Eliseo Dr12.18 miles

1220 S Eliseo Dr
Greenbrae, CA 94904

1300 South Eliseo Drive, Suite 10112.19 miles

1300 South Eliseo Drive, Suite 101
Greenbrae, CA 94904

1321 S Eliseo Dr 1st Fl12.22 miles

1321 S Eliseo Dr 1st Fl
Greenbrae, CA 94904

1517 Grand Ave12.23 miles

1517 Grand Ave
Piedmont, CA 94611

250 Bon Air Rd12.35 miles

250 Bon Air Rd
Greenbrae, CA 94904

538 Stone Rd Ste G12.35 miles

538 Stone Rd Ste G
Benicia, CA 94510

1125 Sir Francis Drake Blvd Ste N12.84 miles

1125 Sir Francis Drake Blvd Ste N
Kentfield, CA 94904

1700 Broadway Ste 31012.96 miles

1700 Broadway Ste 310
Oakland, CA 94612

99 Montecillo Rd Mob 113.02 miles

99 Montecillo Rd Mob 1
San Rafael, CA 94903

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing provides an extensive range of drug and alcohol testing options across our 39 facilities in the Tara Hills, California region. Whether you need DOT or non-DOT urine drug testing, breath alcohol checks, EtG alcohol assays, or hair drug evaluations, we cater to individuals, employers, and legal requirements. Nestled conveniently around Tara Hills, CA, we offer quick testing results with SAMSA certified lab assessments. In addition to same-day services, most locations are just a short drive from your residence or workplace. We also offer services in Occupational Health, Clinical Testing, and Background Verification.

Reach us at (800) 221-4291 or register online. Simply choose your test and the nearest center—services are accessible for yourself, your staff, or someone else. Arranging a testing appointment is quick and straightforward; contact our scheduling team or book your test round the clock online. Our efficient and intuitive process ensures that setting up drug tests in Tara Hills is seamless.

* 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.

Tara Hills, CA Drug Testing

Drug Testing Services Available at Our Tara Hills, CA Labs:

At our Tara Hills 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 Tara Hills, CA

Tara Hills, California Statistics

In Tara Hills, Contra Costa County, 8% of adults reported past-month illicit drug use in recent surveys.

Contra Costa County data shows a 12% increase in opioid-related emergency room visits in Tara Hills over the last year.

Tara Hills, CA, saw a 15% rise in drug-related arrests in recent years, reflecting a countywide trend.

In Contra Costa County, including Tara Hills, there have been over 200 opioid overdose deaths in the past year.

Youth surveys in Tara Hills, CA, indicate that 7% of high school students reported using prescription drugs non-medically in the last year.

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 Tara Hills, CA & Drug Testing Policies

Employers in Tara Hills, CA, enforce strict drug testing policies to ensure a safe and productive work environment. Many businesses conduct pre-employment and random drug screenings. The U.S. Department of Labor provides guidelines on implementing these policies effectively.

Compliance with state laws is crucial, and employers often use guidelines provided by the California Department of Industrial Relations. These regulations ensure fair practices and help maintain workplace safety.

Government Efforts with Drug Problems in Tara Hills, CA

The government of California, alongside local authorities in Tara Hills, has initiated several programs to tackle drug abuse. This includes education programs in schools and community centers. More information can be found on the Contra Costa Health Services website.

Additionally, state-led initiatives like the California MAT Expansion Project aim to increase access to treatment for individuals battling opioid addiction. The Department of Health Care Services offers an overview of these efforts and resources available.

Local Drug Busts & News in Tara Hills, CA

Recent law enforcement operations in Tara Hills, CA, led to a significant drug bust involving multiple arrests and the seizure of illegal substances. The collaboration between local police and the Contra Costa County Sheriff's Office was instrumental in this success.

Community awareness events are regularly held to educate the public about the dangers of drug abuse. These events are often organized by local health agencies in partnership with law enforcement to promote a drug-free community.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Tara Hills, 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 and Other Drugs

Narconon

California State Government

California Department of Health Care Services

Drug Helpline

211 California

Partnership to End Addiction

Substance Abuse and Mental Health Services Administration

Office of Drug and Alcohol Programs

Tara Hills Drug Testing

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

Tara Hills DOT Drug Testing

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

Tara Hills DNA Testing

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

Tara Hills Industry Training

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

Tara Hills Hair Drug Testing

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

Tara Hills Alcohol Testing

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

Tara Hills Drug Testing Services

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

Tara Hills 5 Panel Drug Test

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

Tara Hills 10 Panel Drug Test

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

Tara Hills On Site Drug Testing

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

Tara Hills DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Tara Hills, 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