Drug & Alcohol Testing Near Me - Castle Rock, CO

Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.  

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

38 Drug-Testing Centers in Castle Rock

Minutes Away, Test Today

602 6th St0.22 miles

602 6th St
Castle Rock, CO 80104

Via Croce Di Piperno N. 44 Naples12.86 miles

Via Croce Di Piperno N. 44 Naples
Italy, KS 80126

9330 S University Blvd Ste 10012.93 miles

9330 S University Blvd Ste 100
Highlands Ranch, CO 80126

9330 S University Blvd12.93 miles

9330 S University Blvd
Littleton, CO 80126

9395 Crown Crest Blvd13.09 miles

9395 Crown Crest Blvd
Parker, CO 80138

8671 S Quebec St, Suite 24013.26 miles

8671 S Quebec St, Suite 240
Highlands Ranch, CO 80130

8200 S Quebec St # A3-10313.83 miles

8200 S Quebec St # A3-103
Centennial, CO 80112

206 W County Line Rd Ste 15015.14 miles

206 W County Line Rd Ste 150
Highlands Ranch, CO 80129

10909 E Arapahoe Rd Ste A315.41 miles

10909 E Arapahoe Rd Ste A3
Centennial, CO 80112

9620 E Arapahoe Rd15.42 miles

9620 E Arapahoe Rd
Greenwood Village, CO 80112

11877 E Arapahoe Rd Ste 200c15.46 miles

11877 E Arapahoe Rd Ste 200c
Centennial, CO 80111

14000 E Arapahoe Rd Ste 16015.47 miles

14000 E Arapahoe Rd Ste 160
Centennial, CO 80112

8006 E Arapahoe Rd Unit 10015.53 miles

8006 E Arapahoe Rd Unit 100
Centennial, CO 80112

7700 S Broadway15.85 miles

7700 S Broadway
Littleton, CO 80122

20 W Dry Creek Cir Ste 10016.18 miles

20 W Dry Creek Cir Ste 100
Littleton, CO 80120

20 W Dry Creek Cir Ste 30016.18 miles

20 W Dry Creek Cir Ste 300
Littleton, CO 80120

6093 S Quebec St Ste 10316.36 miles

6093 S Quebec St Ste 103
Centennial, CO 80111

2275 E Arapahoe Rd Ste 20516.45 miles

2275 E Arapahoe Rd Ste 205
Centennial, CO 80122

5650 Greenwood Plaza Blvd Ste 10316.85 miles

5650 Greenwood Plaza Blvd Ste 103
Greenwood Village, CO 80111

20971 E Smoky Hill Rd Ste 105b17.33 miles

20971 E Smoky Hill Rd Ste 105b
Centennial, CO 80015

20270 E Smoky Hill Rd17.36 miles

20270 E Smoky Hill Rd
Centennial, CO 80015

8200 E Belleview Ave17.50 miles

8200 E Belleview Ave
Greenwood Village, CO 80111

24300 E Smoky Hill Rd Unit 12017.53 miles

24300 E Smoky Hill Rd Unit 120
Aurora, CO 80016

16728 E Smoky Hill Rd17.98 miles

16728 E Smoky Hill Rd
Centennial, CO 80015

6140 S Gun Club Rd Ste 20218.00 miles

6140 S Gun Club Rd Ste 202
Aurora, CO 80016

3545 S Tamarac Dr Ste 13019.51 miles

3545 S Tamarac Dr Ste 130
Denver, CO 80237

18890 E Hampden Ave19.94 miles

18890 E Hampden Ave
Aurora, CO 80013

3033 S Parker Rd Ste 80020.01 miles

3033 S Parker Rd Ste 800
Aurora, CO 80014

6179 S Balsam Way, Suite 24020.30 miles

6179 S Balsam Way, Suite 240
Littleton, CO 80123

3601 S Clarkson St20.34 miles

3601 S Clarkson St
Englewood, CO 80113

499 E Hampden Ave Ste 29020.57 miles

499 E Hampden Ave Ste 290
Englewood, CO 80113

125 E Hampden Ave20.63 miles

125 E Hampden Ave
Englewood, CO 80113

730 W Hampden Ave Ste 20020.83 miles

730 W Hampden Ave Ste 200
Englewood, CO 80110

901 W Hampden Ave Unit 10320.84 miles

901 W Hampden Ave Unit 103
Englewood, CO 80110

17230 Jackson Creek Pkwy Ste 12020.85 miles

17230 Jackson Creek Pkwy Ste 120
Monument, CO 80132

3738 W Princeton Cir20.88 miles

3738 W Princeton Cir
Denver, CO 80236

2323 S Troy St Ste 01-30120.90 miles

2323 S Troy St Ste 01-301
Aurora, CO 80014

10355 E Iliff Ave20.93 miles

10355 E Iliff Ave
Denver, CO 80247

Drug Testing Near Me

Seeking reliable local options for drug testing? Accredited Drug Testing, Inc. stands as the top choice across the nation, boasting over 20,000 testing centers to provide same-day drug and alcohol testing services, including in Castle Rock, CO. Whether your needs include a Department of Transportation (DOT) test, court-ordered evaluations, employment screening, or personal checks, our process is streamlined for convenience and discretion. Our facilities and labs adhere strictly to both federal and state regulations, guaranteeing dependable and exact results. For a seamless experience, contact us at (800) 221-4291 or book an appointment online anytime to discover the nearest testing location. With a commitment to safety, standards, and assurance, Accredited Drug Testing reliably provides timely and trusted outcomes.

Drug and Alcohol Testing Options

Urine Drug Testing Available Panels
5 Panel Drug Test (DOT/NON DOT)
5 Panel + Alcohol Drug Test
5 Panel + ETG Alcohol Drug Test
10 Panel Drug Test
10 Panel + ETG Alcohol Drug Test
12 Panel Drug Test
Hair Drug Testing Available Panels
5 Panel Hair Drug Test
5 Panel + ETG Hair Drug Test
10 Panel Hair Drug Test
12 Panel Hair Drug Test
14 Panel Hair Drug Test
16 Panel Hair Drug Test
Alcohol Drug Testing Available Panels
Alcohol Urine Drug Test
ETG Alcohol Test (Urine)
Breath Alcohol Test
Blood Alcohol Test
Peth Alcohol Blood Test
ETG Alcohol Test (Hair)

Customized Testing Options Available l Discounts available for Bulk Purchases l Onsite Drug Testing Services

How Urine Drug Testing Works

Urine drug testing reigns as the most prevalent method of screening in the United States and holds the distinction of being the sole test type endorsed for DOT-regulated drug testing under the regulations of 49 CFR Part 40. This method effectively detects recent substance use by meticulously analyzing a urine sample for drugs, metabolites, or alcohol-related biomarkers. The procedure is rigorously standardized, entirely confidential, and engineered to produce accurate, legally sound outcomes for employers, individuals, and judicial programs.

Testing Methods & Collection Process

  • Donor Identity Verification: Donors must present official identification and sign documentation before sample collection commences.
  • Controlled Collection Environment: Samples are collected in a secure restroom to deter tampering, with water sources controlled and toilets often dyed.
  • Chain of Custody Documentation: A Chain of Custody Form (CCF) monitors the specimen throughout, ensuring test integrity and legal defensibility.
  • Temperature & Validity Checks: Post-collection checks confirm specimen temperature; the lab then verifies creatinine, pH, and other specifics.
  • DOT Split Specimen: DOT tests use two vials one for initial analysis and another if a retest is necessary, while non-DOT testing uses one vial.
  • Laboratory Screening & Confirmation: Samples are processed by SAMHSA-certified labs first using immunoassays, followed by specific GC/MS or LC/MS tests.
  • MRO Verification: A Medical Review Officer evaluates non-negative results with the donor to ensure reliability before release.

How Long Do Urine Test Results Take?

Benefits of Urine Drug & Alcohol Testing

Limitations of Urine Drug & Alcohol Testing

Nonetheless, urine testing remains the most viable and frequently employed technique for drug and alcohol evaluation nationwide, including in Castle Rock, CO.

How Hair Drug Testing Works

In the state of Castle Rock, CO, hair drug and alcohol testing is a trusted laboratory technique that detects long-term substance use. Unlike urine tests that catch recent use, hair analysis has a 90-day detection window, identifying drug metabolites integrated within hair strands. This makes hair testing ideal for ongoing workplace monitoring, legal disputes, child custody considerations, and situations requiring a comprehensive view of substance use history.

Testing Methods & Collection Process

1. Donor Identity Verification

Prior to sample collection, individuals must present valid government identification, with all related consent and custody documentation completed to ensure legally binding results.

2. Hair Collection Procedure

A trained professional clips a small sample usually around 100-120 strands close to the scalp. The preferred source is the head's crown, yet body hair can be used if needed. The process is quick, non-invasive, and conducted under supervision.

3. Chain of Custody Documentation

Completion of a Hair Drug Test Custody and Control Form logs the specimen's collection, sealing, and handling, ensuring the protection and legality of outcomes.

4. Laboratory Preparation & Analysis

In the lab, hair samples undergo critical forensic stages:

Then, samples undergo precise lab analysis:

5. Metabolite Detection

Drug metabolites become embedded in the hair as it grows, forming a robust record of substance usage. The intrinsic nature of metabolites in hair makes this test immune to tampering.

6. MRO Review

A certified Medical Review Officer evaluates any non-negative outcomes for accuracy, examining plausible medical reasons and delivering an official report.

How Long Do Hair Test Results Take?

Although hair testing has a slightly extended turnaround compared to urine tests, its detection reliability is unrivaled.

Alcohol & Drug Testing-How Each Method Works

In Castle Rock, CO, Accredited Drug Testing offers a comprehensive array of alcohol and drug screening options. These tests are carefully crafted to align with the needs of employers, DOT standards, legal guidelines, and personal testing necessities. The knowledge of how each specific test operates guarantees the right choice is made, ensuring both reliable results and adherence to federal and state regulations. Our robust network spans nationwide, backed by certified labs and skilled Medical Review Officers, which bring forth the accuracy, trust, and professionalism you deem right for trustworthy testing results.

Alcohol Urine Drug Test

This alcohol urine test targets recent alcohol intake by spotting ethanol metabolites in the urine. It's often employed in workplace screenings, judicial demands, and in the aftermath of accidents. While it doesn't gauge immediate impairment, it serves as a quick, cost-effective solution with a short detection scope of several hours.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test is noted for its heightened sensitivity, able to trace alcohol consumption up to 80 hours post-drinking. Given that EtG is a direct byproduct of ethanol exposure, this test is prevalently utilized in judicial, rehab programs, and compliance monitoring settings, praised for both its prolonged detection period and its trusted accuracy.

Breath Alcohol Test

A breath analysis targeting alcohol concentration via deep lung air reveals current impairment state. Using DOT-compliant breath alcohol devices (EBTs), these tests deliver immediate, court-admissible results, integral for DOT-covered workforce, workplace safety, post-incident evaluations, and suspicion-based testing.

Blood Alcohol Test

This blood alcohol test quantifiably gauges the ethanol presence in bloodstream, granting it recognition as a leading method for impairment assessment. It's typically used in DUI inquiries, emergent healthcare, and critical legal scenarios by hospitals, law enforcement, and legal experts.

PEth Alcohol Blood Test

The PEth (Phosphatidylethanol) blood test discerns chronic or heavy drinking through alcohol-specific biomarkers within red blood cells. Detecting use over a span of 2-3 weeks, this test is considered a premier tool for evaluating long-term drinking habits and is relied upon for family law disputes, monitoring schemes, rehab establishments, and pre-hire screenings in safety-focused sectors.

ETG Alcohol Test (Hair)

The EtG hair alcohol test leverages a 90-day inspection period by evaluating alcohol metabolites lodged within the hair stem. This method excels at identifying recurrent or ongoing alcohol patterns, surpassing isolated consumption detections. Because of its stability and resistance to temporary abstinence attempts, it is invaluable in courts, child custody disputes, and long-term surveillance setups.

With leading expertise, recognized labs, and rapid arrangements, Accredited Drug Testing ensures that each alcohol screening approach offers validated, transparent, and regulation-conscious results, supporting both individuals and employers in maintaining knowledge, security, and total regulatory adherence.


Accredited Drug Testing provides nationwide drug and alcohol screening solutions, including urine, hair, EtG, PEth, and breath alcohol testing. Backed by SAMHSA-certified laboratories, DOT 49 CFR Part 40 compliance, and scientifically validated testing technology, our services ensure accurate, defensible, and confidential results for employers, courts, and individuals.

Frequently Asked Questions

Urine tests detect recent use and are the only option approved for DOT testing under 49 CFR Part 40. Hair tests provide a 90-day detection window per the Society of Hair Testing (SoHT). Alcohol testing options, EtG, breath, blood, or PEth. These tests can identify recent use, impairment, or long-term drinking behavior depending on the method.

Urine: 24 - 48 hrs for negatives (SAMHSA guidelines).
Hair: 2 - 5 business days due to multi-step forensic processing (SoHT).
Breath Alcohol: Immediate results using NHTSA-approved EBT devices.
PEth: 3 - 5 days based on forensic toxicology studies.

Lab confirmation using GC/MS or LC/MS is the gold standard per SAMHSA & DOT.
Hair testing is highly tamper-resistant (SoHT).
PEth is considered the most reliable marker of repeated drinking (Journal of Analytical Toxicology).

No. DOT-regulated urine tests require validity checks and chain-of-custody documentation (49 CFR Part 40). Hair tests undergo decontamination and metabolite extraction (SoHT), making them extremely difficult to adulterate.

EtG urine detects alcohol for up to 80 hours (NIH/SAMHSA studies). EtG hair detects chronic alcohol consumption for up to 90 days (SoHT alcohol guidelines).

5 Panel DOT:49 CFR Part 40. Expanded non-DOT panels add benzodiazepines, barbiturates, methadone, oxycodone, MDMA, fentanyl, and more (SAMHSA forensic panel standards).

PEth blood testing identifies long-term and heavy alcohol use for 2 - 4 weeks. Used in child custody, treatment monitoring, and professional compliance programs (CDC & Journal of Analytical Toxicology).

Hair testing does not detect drug use within the past 5 - 7 days. It identifies long-term or repetitive use patterns per SoHT standards.

Yes. Results follow strict chain-of-custody procedures, DOT/SAMHSA requirements, GC/MS or LC/MS confirmation, and MRO review; making them acceptable in court, DOT, and legal settings.

Yes. Accredited Drug Testing offers same-day appointments at 20,000+ locations nationwide, instant testing options, and onsite employer testing with bulk discounts.

Customer Reviews

phone support has been excellent

I have used ADT several times. Their phone support has been excellent, both when putting in the orders and when asking for help to interpret results.

Tee Ess - 12/19/2024

Fast and easy

It was fast and easy a pleasure to talk to the customer service people great service

Peter Villegas - 1/19/2025

Pretty Straightforward

It was a pretty straightforward process getting an appointment and making payment. Getting to the testing site was quick. I was in and out in no time.

Sadiat Ogunyemi - 12/19/2024

Extremely polite

They were very fast extremely polite walked you through every detail of the process if you had any questions they had no problems answering

Billy Williams - 2/19/2025

Great experience

Great experience and great lab. Customer service agent was very helpful.

Jenna Bee - 2/19/2025


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Castle Rock Drug Testing

Quickly find trusted local drug testing centers in Castle Rock, CO — fast, convenient, and reliable every time!

Castle Rock DOT Drug Testing

Quickly find a local DOT drug testing center in Castle Rock, CO — fast, reliable, convenient nationwide service!

Castle Rock DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Castle Rock, CO.

Castle Rock Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Castle Rock, CO.v

Castle Rock Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Castle Rock, CO locations—results you can trust, every time!

Castle Rock Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Castle Rock, CO.

Castle Rock Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Castle Rock, CO.

Castle Rock 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Castle Rock, CO employers and individuals nationwide.

Castle Rock 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Castle Rock, CO workplace and personal testing needs.

Castle Rock On Site Drug Testing

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

Castle Rock DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Castle Rock, CO 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.

(800) 221-4291