Drug Testing Locations - Gaston, OR

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

35 Drug-Testing Centers in Gaston

Minutes Away, Test Today

115 S Lincoln St12.15 miles

115 S Lincoln St
Newberg, OR 97132

501 Villa Rd12.56 miles

501 Villa Rd
Newberg, OR 97132

2880 Hayes St12.98 miles

2880 Hayes St
Newberg, OR 97132

1001 Providence Dr13.20 miles

1001 Providence Dr
Newberg, OR 97132

17175 Sw Tualatin Valley Hwy Ste A14.34 miles

17175 Sw Tualatin Valley Hwy Ste A
Aloha, OR 97006

18610 Nw Cornell Rd Ste 20414.76 miles

18610 Nw Cornell Rd Ste 204
Hillsboro, OR 97124

1881 Nw 185th Ave14.81 miles

1881 Nw 185th Ave
Beaverton, OR 97006

2225 Nw Town Center Dr14.89 miles

2225 Nw Town Center Dr
Beaverton, OR 97006

1275 Nw Adams St Ste D15.42 miles

1275 Nw Adams St Ste D
Mcminnville, OR 97128

1815 Nw 169th Pl15.44 miles

1815 Nw 169th Pl
Beaverton, OR 97006

15455 Nw Greenbrier Pkwy Ste 13015.87 miles

15455 Nw Greenbrier Pkwy Ste 130
Beaverton, OR 97006

254 Ne Norton Ln16.24 miles

254 Ne Norton Ln
Mcminnville, OR 97128

2435 Ne Cumulus Ave Ste B16.31 miles

2435 Ne Cumulus Ave Ste B
Mcminnville, OR 97128

2700 Se Stratus Ave16.34 miles

2700 Se Stratus Ave
Mcminnville, OR 97128

11625 Sw Camden Ln16.66 miles

11625 Sw Camden Ln
Beaverton, OR 97008

Po Box 1216.72 miles

Po Box 12
Beaverton, OR 97075

4915 Sw Griffith Dr Ste 21017.01 miles

4915 Sw Griffith Dr Ste 210
Beaverton, OR 97005

6950 Sw 105th Ave17.37 miles

6950 Sw 105th Ave
Beaverton, OR 97008

11790 Sw Barnes Road, Building A, Suite 36017.46 miles

11790 Sw Barnes Road, Building A, Suite 360
Portland, OR 97225

10200 Sw Greenburg Rd 217.60 miles

10200 Sw Greenburg Rd 2
Portland, OR 97223

10940 Sw Barnes Rd17.81 miles

10940 Sw Barnes Rd
Portland, OR 97225

9555 Sw Barnes Rd Ste 35018.37 miles

9555 Sw Barnes Rd Ste 350
Portland, OR 97225

7587 Sw Mohawk St18.97 miles

7587 Sw Mohawk St
Tualatin, OR 97062

4802 Sw Scholls Ferry Rd Unit A19.16 miles

4802 Sw Scholls Ferry Rd Unit A
Portland, OR 97225

17649 65th Ave19.36 miles

17649 65th Ave
Lake Oswego, OR 97035

6405 Rosewood St Ste B19.42 miles

6405 Rosewood St Ste B
Lake Oswego, OR 97035

11140 Sw Barbur Blvd Ste 10119.75 miles

11140 Sw Barbur Blvd Ste 101
Portland, OR 97219

25749 Sw Canyon Creek Rd Ste 60019.86 miles

25749 Sw Canyon Creek Rd Ste 600
Wilsonville, OR 97070

17050 Pilkington Rd, Suite 22019.87 miles

17050 Pilkington Rd, Suite 220
Lake Oswego, OR 97035

4000 Kruse Way Pl Bldg 2 Suite # 16020.15 miles

4000 Kruse Way Pl Bldg 2 Suite # 160
Lake Oswego, OR 97035

9111 Se Saint Helens St20.58 miles

9111 Se Saint Helens St
Clackamas, OR 97015

2230 Nw Pettygrove Street, Suite 13022.42 miles

2230 Nw Pettygrove Street, Suite 130
Portland, OR 97210

3449 N Anchor St Ste 50022.72 miles

3449 N Anchor St Ste 500
Portland, OR 97217

3449 N Anchor St Ste 300a22.72 miles

3449 N Anchor St Ste 300a
Portland, OR 97217

800 Sw 13th Ave22.75 miles

800 Sw 13th Ave
Portland, OR 97205

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing proudly delivers a full range of drug and alcohol assessment services through our 35 testing locations in the Gaston, Oregon area. Whether you require DOT or non-DOT urine drug tests, breath alcohol analyses, EtG alcohol tests, or hair drug screenings, we have you covered for personal, workplace, or legal requirements. Our speedy results and SAMSA certified lab assessments in Gaston, OR make testing straightforward, with same-day services available. Most of our testing sites are conveniently located close to your home or workplace. We also provide Occupational Health Testing, Clinical Testing, and Background Checks.

Contact us at (800) 221-4291 or via our online registration. Just select the necessary test and a nearby facility—our services cater to your needs, be it for oneself, employees, or others. Scheduling is quick and simple; reach our scheduling team or arrange a test online anytime. Enjoy a seamless, intuitive process for drug testing scheduling near Gaston.

* 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.

Gaston, OR Drug Testing

Drug Testing Services Available at Our Gaston, OR Labs:

At our Gaston 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 Gaston, OR

Gaston, Oregon Statistics

In 2020, Gaston, located in Washington County, OR, reported an 8% increase in opioid-related overdoses.

Methamphetamine-related arrests accounted for 25% of all drug arrests in Gaston, Washington County in 2019.

Fentanyl use has been on the rise in Gaston, Washington County, with a 15% increase observed since 2018.

Washington County, including Gaston, saw a 10% uptick in drug court admissions in 2021.

There were 40 reported cases of heroin overdoses in Gaston, Washington County in 2019.

Teen drug abuse in Gaston reached 12% of the adolescent population in Washington County as of a 2020 study.

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 Gaston, OR & Drug Testing Policies

Employers in Gaston take drug use very seriously and often implement drug testing policies to maintain a safe and productive workplace. Most companies comply with the guidelines set by the Oregon Bureau of Labor and Industries.

Random drug testing is common in industries such as transportation and construction. Policies are informed by legal standards and safety concerns, aiming to prevent accidents and ensure employee health and wellness.

Government Efforts with Drug Problems in Gaston, OR

The government of Gaston, OR, together with Washington County, has implemented several initiatives to combat drug abuse. These include drug education programs in schools and increased funding for local law enforcement to tackle drug trafficking effectively.

Collaboration with state-level resources like the Oregon Health Authority aims to provide better rehabilitation facilities and community outreach programs. The objective is to reduce the rate of addiction and improve recovery support for affected families in the region.

Local Drug Busts & News in Gaston, OR

In recent years, Gaston has witnessed several drug busts highlighting the severity of illegal substance distribution in the area. Police, in coordination with Washington County Sheriff’s Office, have uncovered multiple drug rings, aiming to curtail the influx of narcotics into the community.

Community events focus on raising awareness about substance abuse, providing resources for prevention and recovery, and promoting open dialogues on tackling the drug crisis effectively.

Occupational Health Services

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

Oregon DOT/Non DOT Physicals

Oregon Vision Tests

Oregon Audiograms

Oregon Respirator Fit Tests

Oregon Lift Tests

Oregon Background Checks

Resources & Citations

Drug Rehab Oregon

Addiction Center Oregon

Washington County Behavioral Health

Lines for Life

Oregon Health Authority - Marijuana

ODOT Alcohol and Drug Impairment

Tigard Recovery Club

Al-Anon Portland Oregon

Gaston Drug Testing

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

Gaston DOT Drug Testing

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

Gaston DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Gaston, OR.

Gaston Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Gaston, OR.v

Gaston Hair Drug Testing

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

Gaston Alcohol Testing

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

Gaston Drug Testing Services

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

Gaston 5 Panel Drug Test

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

Gaston 10 Panel Drug Test

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

Gaston On Site Drug Testing

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

Gaston DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Gaston, OR 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