Drug Testing Locations - Three Rocks, CA

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

39 Drug-Testing Centers in Three Rocks

Minutes Away, Test Today

1165 Phelps Ave Ste 20324.30 miles

1165 Phelps Ave Ste 203
Coalinga, CA 93210

1191 Phelps Ave24.38 miles

1191 Phelps Ave
Coalinga, CA 93210

1165 Phelps Avenue, Suite 10724.42 miles

1165 Phelps Avenue, Suite 107
Coalinga, CA 93210

1250 E Almond Ave Po Box 132830.89 miles

1250 E Almond Ave Po Box 1328
Madera, CA 93637

4739 W. Shaw Ave, Suite 10435.42 miles

4739 W. Shaw Ave, Suite 104
Fresno, CA 93722

363 East Almond Avenue, Suite 10735.92 miles

363 East Almond Avenue, Suite 107
Madera, CA 93637

509 S I St Ste A36.30 miles

509 S I St Ste A
Madera, CA 93637

344 W 6th St36.41 miles

344 W 6th St
Madera, CA 93637

2746 E Jensen Ave36.74 miles

2746 E Jensen Ave
Fresno, CA 93706

2370 W Cleveland Ave36.77 miles

2370 W Cleveland Ave
Madera, CA 93637

2339 W Cleveland Ave Ste 10336.78 miles

2339 W Cleveland Ave Ste 103
Madera, CA 93637

2113 Merced St37.03 miles

2113 Merced St
Fresno, CA 93721

2555 S East Ave37.23 miles

2555 S East Ave
Fresno, CA 93706

1350 O Street Suite 10137.28 miles

1350 O Street Suite 101
Fresno, CA 93721

2023 Divisadero St,37.44 miles

2023 Divisadero St,
Fresno, CA 93701

2911 Tulare St37.99 miles

2911 Tulare St
Fresno, CA 93721

5550 N Palm Ave Ste 10739.01 miles

5550 N Palm Ave Ste 107
Fresno, CA 93704

5649 N Palm Ave39.06 miles

5649 N Palm Ave
Fresno, CA 93704

222 W Shaw Ave39.23 miles

222 W Shaw Ave
Fresno, CA 93704

6101 N Fresno St Ste 10340.43 miles

6101 N Fresno St Ste 103
Fresno, CA 93710

6042 N Fresno St Ste 10140.46 miles

6042 N Fresno St Ste 101
Fresno, CA 93710

5361 E Kings Canyon Rd41.04 miles

5361 E Kings Canyon Rd
Fresno, CA 93727

7265 N 1st St Ste 10541.47 miles

7265 N 1st St Ste 105
Fresno, CA 93720

1245 E Herndon Ave41.64 miles

1245 E Herndon Ave
Fresno, CA 93720

450 Kings County Dr, Ste 10341.90 miles

450 Kings County Dr, Ste 103
Hanford, CA 93230

869 W Lacey Blvd42.55 miles

869 W Lacey Blvd
Hanford, CA 93230

7075 N Maple Ave, Ste 10442.63 miles

7075 N Maple Ave, Ste 104
Fresno, CA 93720

7005 N Maple Ave Ste 10442.64 miles

7005 N Maple Ave Ste 104
Fresno, CA 93720

7300 N Fresno St Oak 1 Bldg42.89 miles

7300 N Fresno St Oak 1 Bldg
Fresno, CA 93720

1120 N Irwin St,42.90 miles

1120 N Irwin St,
Hanford, CA 93230

1028 N Douty St43.02 miles

1028 N Douty St
Hanford, CA 93230

1850 Whitson St43.47 miles

1850 Whitson St
Selma, CA 93662

755 N Peach Ave Ste C1344.07 miles

755 N Peach Ave Ste C13
Clovis, CA 93611

On--site Only44.27 miles

On--site Only
Fresno, CA 93737

1122 Rose Ave, Ste 244.32 miles

1122 Rose Ave, Ste 2
Selma, CA 93662

5612 Bisqustone44.57 miles

5612 Bisqustone
Fresno, CA 98710

285 Mercey Springs Rd Ste A45.98 miles

285 Mercey Springs Rd Ste A
Los Banos, CA 93635

300 Canal St46.00 miles

300 Canal St
King City, CA 93930

809 Broadway St46.01 miles

809 Broadway St
King City, CA 93930

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing facilitates a wide range of drug and alcohol assessments through our 39 testing sites in the Three Rocks, California vicinity. We conduct both DOT and non-DOT urine drug screenings, breath alcohol evaluations, EtG alcohol tests, and hair drug tests for personal, workforce, and judicial necessities. Rapid results testing and SAMSA-certified laboratory analyses are available with same-day service in Three Rocks, CA. Many of our testing centers are just minutes away from your residence or workplace. We also offer Occupational Health Evaluations, Clinical Screenings, and Background Verification Services.

Dial (800) 221-4291 or enroll through our website. Choose your required test and pick a nearby center—services are accessible for you, employees, or other individuals. Scheduling is swift and straightforward; contact our scheduling team or book your test anytime, day or night, via our online platform. Our efficient and intuitive system allows you to set up drug testing near Three Rocks with ease.

* 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.

Three Rocks, CA Drug Testing

Drug Testing Services Available at Our Three Rocks, CA Labs:

At our Three Rocks 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 Three Rocks, CA

Three Rocks, California Statistics

Three Rocks, CA, located in Fresno County, reported a 15% increase in opioid-related overdoses in 2022.

In Fresno County, 25% of drug-related arrests in 2022 involved residents of Three Rocks, CA.

Three Rocks, CA, saw a 10% rise in cocaine usage as reported by Fresno County health officials in late 2022.

Fresno County's public health department noted that 30% of high school students in Three Rocks, CA, admitted to trying marijuana in 2022.

Three Rocks, CA, accounted for 18% of methamphetamine-related hospital admissions in Fresno County 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 Three Rocks, CA & Drug Testing Policies

Employers in Three Rocks, CA, are vigilant about maintaining drug-free workplaces. Many companies have established mandatory drug testing policies. In accordance with state guidelines, these tests are conducted to ensure safety and compliance. The California Department of Industrial Relations offers guidance on implementing these policies effectively.

A common practice among employers in Three Rocks, CA, involves pre-employment drug screening in addition to random testing for current employees. These initiatives aim to deter substance abuse and highlight the larger public health issue within the workplace environment.

Government Efforts with Drug Problems in Three Rocks, CA

The city of Three Rocks, CA, in collaboration with Fresno County, has implemented several initiatives to tackle drug abuse. Health outreach programs have been established to educate residents about the dangers of narcotics. Fresno County Department of Public Health plays a critical role in this effort.

On a larger scale, the state government of California supports local efforts through funding and policy-making. The California Department of Public Health has been pivotal in providing resources and training. Partnerships with federal agencies, such as the DEA, have also been formed to combat drug trafficking and abuse in the region.

Local Drug Busts & News in Three Rocks, CA

Three Rocks, CA, has been the site of several significant drug busts in recent years. One notable operation in early 2023 led to the seizure of over $1 million worth of methamphetamine. These efforts have been part of a broader strategy by Fresno County authorities to clamp down on drug trafficking and distribution.

The local police department in Three Rocks, CA, collaborates closely with state agencies in organizing awareness campaigns and community events to educate residents on drug dangers. These initiatives not only aim to prevent abuse but also support recovery and rehabilitation efforts for those affected.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Three Rocks, 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

National Institute on Drug Abuse

Substance Abuse and Mental Health Services Administration

California Drug Rehab and Inpatient Alcohol Rehabs Treatment

CDC - California Drug Overdose Data

California Department of Public Health - Substance Use

Fresno County Health and Human Services

National Institute on Alcohol Abuse and Alcoholism

California Department of Public Health Substance and Addiction Prevention Branch

California Health and Wellness

American Journal of Managed Care - California Statistics

Three Rocks Drug Testing

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

Three Rocks DOT Drug Testing

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

Three Rocks DNA Testing

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

Three Rocks Industry Training

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

Three Rocks Hair Drug Testing

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

Three Rocks Alcohol Testing

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

Three Rocks Drug Testing Services

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

Three Rocks 5 Panel Drug Test

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

Three Rocks 10 Panel Drug Test

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

Three Rocks On Site Drug Testing

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

Three Rocks DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Three Rocks, 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