Drug Testing Locations - Norco, CA

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

31 Drug-Testing Centers in Norco

Minutes Away, Test Today

10800 Magnolia Ave Mob 1, 4th Fl, 4j3.16 miles

10800 Magnolia Ave Mob 1, 4th Fl, 4j
Riverside, CA 92505

4234 Riverwalk Parkway Suite 2003.31 miles

4234 Riverwalk Parkway Suite 200
Riverside, CA 92505

800 S Main St4.13 miles

800 S Main St
Corona, CA 92882

118 W 9th St,4.21 miles

118 W 9th St,
Corona, CA 92882

1690 W 6th St Ste K4.60 miles

1690 W 6th St Ste K
Corona, CA 92882

1820 Fullerton Ave4.95 miles

1820 Fullerton Ave
Corona, CA 92881

800 Magnolia Ave Ste 1084.97 miles

800 Magnolia Ave Ste 108
Corona, CA 92879

2250 S. Main St # 105,5.39 miles

2250 S. Main St # 105,
Corona, CA 92882

3975 Jackson St. Ste 1046.19 miles

3975 Jackson St. Ste 104
Riverside, CA 92503

3865 Jackson St6.25 miles

3865 Jackson St
Riverside, CA 92503

9041 Magnolia Ave Ste 107b6.35 miles

9041 Magnolia Ave Ste 107b
Riverside, CA 92503

599 Inland Ctr Ste 1057.02 miles

599 Inland Ctr Ste 105
San Bernardino, CA 92408

3550 E Philadelphia St Ste 1507.21 miles

3550 E Philadelphia St Ste 150
Ontario, CA 91761

15302 El Prado Rd8.35 miles

15302 El Prado Rd
Chino, CA 91710

1101 S Milliken Ave Ste C8.38 miles

1101 S Milliken Ave Ste C
Ontario, CA 91761

2171 S Grove Ave Ste A8.48 miles

2171 S Grove Ave Ste A
Ontario, CA 91761

4300 Central Ave8.70 miles

4300 Central Ave
Riverside, CA 92506

402 S Milliken Ave Ste E28.91 miles

402 S Milliken Ave Ste E2
Ontario, CA 91761

3579 Arlington Ave Ste 3009.08 miles

3579 Arlington Ave Ste 300
Riverside, CA 92506

59 S Milliken Ave Ste 1009.09 miles

59 S Milliken Ave Ste 100
Ontario, CA 91761

3600 Central Ave Ste 39.16 miles

3600 Central Ave Ste 3
Riverside, CA 92506

4325 E Guasti Rd9.22 miles

4325 E Guasti Rd
Ontario, CA 91761

4045 E Guasti Rd Ste 2159.25 miles

4045 E Guasti Rd Ste 215
Ontario, CA 91761

14384 Slover Ave9.69 miles

14384 Slover Ave
Fontana, CA 92337

3200 Inland Empire Blvd Ste 1009.82 miles

3200 Inland Empire Blvd Ste 100
Ontario, CA 91764

4646 Brockton Ave Ste 102,9.83 miles

4646 Brockton Ave Ste 102,
Riverside, CA 92506

2920 Inland Empire Blvd Ste 1089.86 miles

2920 Inland Empire Blvd Ste 108
Ontario, CA 91764

7798 Cherry Ave9.93 miles

7798 Cherry Ave
Fontana, CA 92336

10444 Live Oak Ave9.93 miles

10444 Live Oak Ave
Fontana, CA 92337

4121 Brockton Ave Ste 10410.19 miles

4121 Brockton Ave Ste 104
Riverside, CA 92501

5475 Walnut Ave10.21 miles

5475 Walnut Ave
Chino, CA 91710

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing provides a wide range of substance screening solutions across our 31 facilities in the Norco, California vicinity. We offer urine drug analyses, breathalyzer alcohol tests, EtG alcohol screenings, and hair follicle drug assessments for personal, employment, and legal requirements. In Norco, CA, we afford rapid test results alongside SAMSA-certified lab analyses, with same-day services readily accessible. Many testing centers are conveniently located near homes or offices. Our services also extend to Occupational Health Testing, Clinical Testing, and Background Checks.

Dial (800) 221-4291 or register on our website. Easily choose your desired test and find a nearby center—perfect for self-testing, employee assessments, or testing others. Scheduling is quick and straightforward through our call line or online portal, open 24/7. Our efficient and intuitive process simplifies arranging drug testing in Norco.

* 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.

Norco, CA Drug Testing

Drug Testing Services Available at Our Norco, CA Labs:

At our Norco 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 Norco, CA

Norco, California Statistics

In Norco, Riverside County, California, approximately 13% of high school students reported using illicit drugs in the past year.

Riverside County noted over 1,500 opioid-related emergency room visits in 2021, affecting cities like Norco.

Norco police reported a 22% increase in methamphetamine-related arrests since 2018.

In Riverside County, 30% of drug-related convictions in 2019 were linked to offenses in Norco and surrounding areas.

The city of Norco saw a 15% rise in drug possession cases from 2018 to 2020 according to Riverside County records.

Youth drug abuse intervention programs in Norco saw a 10% increase in participation in 2021.

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 Norco, CA & Drug Testing Policies

Employers in Norco, CA, implement strict drug testing policies to maintain a safe and productive work environment. Many businesses follow guidelines set by the California Department of Industrial Relations to conduct pre-employment and random drug screening for all employees.

Drug-free workplace policies are also promoted by the U.S. Department of Labor, ensuring that Norco employers comply with drug testing regulations to deter substance abuse among the workforce. These policies are crucial in minimizing drug-related issues and maintaining high standards across industries.

Government Efforts with Drug Problems in Norco, CA

The city of Norco, CA, has implemented several government initiatives to combat drug problems within the community. The Riverside County District Attorney's Office facilitates educational programs and collaborations with local law enforcement to address drug-related offenses.

Furthermore, Norco collaborates with state programs such as the California Department of Health Care Services to provide rehabilitation and treatment services. These efforts are focused on reducing the impact of drug abuse through preventive measures and support for affected individuals.

Local Drug Busts & News in Norco, CA

In recent years, Norco, CA has experienced a series of local drug busts as law enforcement continues to crack down on illegal drug activities. These efforts have intensified with increased coordination between local police and federal agencies. The community has been vigilant, often providing tips that lead to significant arrests and seizures of narcotics, helping to reduce the overall crime rate.

A notable event occurred when police executed a search warrant at a known location suspected of being a drug distribution center. This operation resulted in the confiscation of substantial quantities of methamphetamine and heroin, as well as the arrest of several individuals allegedly connected to a larger drug trafficking ring operating within Riverside County.

Another significant incident took place at a traffic stop that turned into a major seizure. Officers discovered hidden compartments within the vehicle containing numerous packages of controlled substances. This arrest highlighted the sophisticated methods employed by drug traffickers in an attempt to evade law enforcement detection, prompting further investigations into regional distribution networks.

The community of Norco has also seen efforts focused on education and rehabilitation, aiming to prevent drug abuse and offer alternatives. Various programs have been introduced in schools and community centers to raise awareness about the dangers of drug use, while local rehabilitation centers provide support to those seeking recovery, reflecting a commitment to long-term solutions in addressing drug-related issues.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Norco, 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

SAMHSA National Helpline

Riverside County DA - o-drug Crisis

California Department of Public Health - Substance Abuse

Narcotics Anonymous

Lanterman Regional Center

National Institute on Drug Abuse - California

Riverside University Health System - Behavioral Health

Riverside County Continuum of Care

Norco Drug Testing

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

Norco DOT Drug Testing

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

Norco DNA Testing

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

Norco Industry Training

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

Norco Hair Drug Testing

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

Norco Alcohol Testing

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

Norco Drug Testing Services

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

Norco 5 Panel Drug Test

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

Norco 10 Panel Drug Test

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

Norco On Site Drug Testing

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

Norco DOT Physicals

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