Drug & Alcohol Testing Near Me - Merrimack, NH

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

33 Drug-Testing Centers in Merrimack

Minutes Away, Test Today

171 Pleasant St0.85 miles

171 Pleasant St
Concord, NH 3301

1 Pillsbury St1.15 miles

1 Pillsbury St
Concord, NH 3301

250 Pleasant St1.47 miles

250 Pleasant St
Concord, NH 3301

280 Pleasant St,1.65 miles

280 Pleasant St,
Concord, NH 3301

60 Commercial St One Corporate Center At Horseshoe Pond2.29 miles

60 Commercial St One Corporate Center At Horseshoe Pond
Concord, NH 3301

60 Commercial St 1 Corp. Center At Horseshoe Pond2.29 miles

60 Commercial St 1 Corp. Center At Horseshoe Pond
Concord, NH 3301

2 Industrial Park Dr2.68 miles

2 Industrial Park Dr
Concord, NH 3301

102 Bay St14.52 miles

102 Bay St
Manchester, NH 3104

195 Mcgregor Street, Across From Cmc Hospital15.31 miles

195 Mcgregor Street, Across From Cmc Hospital
Manchester, NH 3102

53 Ash St Apt 115.38 miles

53 Ash St Apt 1
Manchester, NH 3104

614 Laconia Rd Rte 315.52 miles

614 Laconia Rd Rte 3
Tilton, NH 3276

128 Route 2715.64 miles

128 Route 27
Raymond, NH 3077

275 Mammoth Rd Ste 316.39 miles

275 Mammoth Rd Ste 3
Manchester, NH 3109

185 Queen City Ave 3rd Fl16.61 miles

185 Queen City Ave 3rd Fl
Manchester, NH 3101

40 S River Rd17.17 miles

40 S River Rd
Bedford, NH 3110

101 Riverway Pl17.22 miles

101 Riverway Pl
Bedford, NH 3110

15 Aiken Ave17.35 miles

15 Aiken Ave
Franklin, NH 3235

168 S River Rd17.66 miles

168 S River Rd
Bedford, NH 3110

2075 S Willow St18.38 miles

2075 S Willow St
Manchester, NH 3103

1279 S Willow St Ste E-g18.38 miles

1279 S Willow St Ste E-g
Manchester, NH 3103

Po Box 1054718.83 miles

Po Box 10547
Bedford, NH 3110

340 Harvey Rd19.32 miles

340 Harvey Rd
Manchester, NH 3103

1 Highlander Way19.95 miles

1 Highlander Way
Manchester, NH 3103

1 Crosswoods Path Blvd Ste 3a20.98 miles

1 Crosswoods Path Blvd Ste 3a
Merrimack, NH 3054

96 Daniel Webster Hwy21.28 miles

96 Daniel Webster Hwy
Belmont, NH 3220

6 Freetown Rd22.27 miles

6 Freetown Rd
Raymond, NH 3077

80 Highland St22.42 miles

80 Highland St
Laconia, NH 3246

14 Country Club Rd,22.80 miles

14 Country Club Rd,
Gilford, NH 3249

60 Crystal Ave Unit B Ste 224.39 miles

60 Crystal Ave Unit B Ste 2
Derry, NH 3038

707 Milford Rd Rte 101a, Pinnacle Square24.63 miles

707 Milford Rd Rte 101a, Pinnacle Square
Merrimack, NH 3054

50 Nashua Rd Ste 30125.45 miles

50 Nashua Rd Ste 301
Londonderry, NH 3053

14 Maple St27.92 miles

14 Maple St
Gilford, NH 3249

40 Winter St Ste 20029.27 miles

40 Winter St Ste 200
Rochester, NH 3867

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 Merrimack, NH. 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

In its widespread application across the United States and Merrimack, NH, urine drug testing stands as the predominant method for substance screening and is the exclusive choice approved for DOT-regulated tests under the setting of 49 CFR Part 40. This process accurately detects recent use of substances by examining a urine sample for the presence of drugs, relevant drug metabolites, or alcohol-related biomarkers. Annually, employers, individuals, and judicial entities rely on this standardized, discrete approach to provide certified, court-ready results.

Testing Methods & Collection Process

1. Donor Identity Verification

Verification begins with the presentation of a legitimate government-issued ID by the donor followed by completion of necessary chain-of-custody documentation before testing initiates.

2. Secure Collection Environment

In a monitored restroom environment to inhibit tampering, urine specimens are procured. Standard procedures may include restricting personal items, securing access to water, and dying toilet water.

3. Chain of Custody Documentation

The integrity and legal defensibility of the specimen are maintained by leveraging a federally compliant Chain of Custody Form (CCF) throughout the journey from collection to lab analysis.

4. Temperature & Validity Checks

Specimen temperatures and appearances are immediately evaluated post-collection. Laboratory validity testing extensively covers creatinine levels, pH balance, density, and potential adulterants.

5. DOT Split Specimen

DOT testing requires sample division into two vials: Bottle A for initial screening and Bottle B reserved for challenges. Non-DOT scenarios may involve a single sample collection.

6. Laboratory Screening & Confirmation

Employing SAMHSA-certified laboratories, the testing involves two systematic processes:

  • Initial Immunoassay Screen:  Detection of drug categories.
  • Confirmation Testing: Precision provided by GC/MS or LC/MS methods identifying specific drugs and metabolites.

7. MRO Verification

A certified Medical Review Officer (MRO) meticulously examines non-negative outcomes, authenticates accuracy, and potentially converses with the donor before disclosing finalized results.

How Long Do Urine Test Results Take?

  • Instant Urine Test: Negative results rendered by the same day; positives forwarded for confirmation taking 24-72 hours.
  • Lab-Based Urine Test: A 24-48 hours timeframe for prevailing negative results.
  • DOT Drug Test: Completion within 1-3 business days subject to MRO review and ensuing donor consultations.
  • Urine EtG Alcohol Test: Turnaround typically falls between 24-48 hours.

Extended periods might be encountered amid shy bladder incidents, invalid samples, or in exigency of lab verification or donor interaction.

Benefits of Urine Drug & Alcohol Testing

  • Currently the only DOT sanctioned methodology and officially acknowledged for regulated testing procedures.
  • Picks up recent substance engagement, ideal for workplaces or post-incident analysis.
  • Cost-effective with rapid processing times.
  • Externally endorsed by courts, employers, and government bodies.
  • Immediate testing selections available for swift screening purposes.
  • Efficiency ensured with GC/MS or LC/MS verification technology.

Limitations of Urine Drug & Alcohol Testing

  • Short detection timeframe (1-7 days for most substances).
  • Security measures required to guard against sample alteration.
  • Long-term or historical employment of substances undetectable.
  • Necessitates restroom utilization and compliance with collection protocols.
  • Standard urine evaluations exclude alcohol unless accompanied by EtG/EtS testing.

Despite such limitations, urine testing retains its prominence as the most viable and extensively embraced approach for drugs and alcohol testing across the nation.

How Hair Drug Testing Works

When it comes to pinpointing prolonged substance use, hair drug and alcohol testing offers an unparalleled laboratory method. Unlike urine testing's focus on recent consumption, hair testing presents an extensive 90-day detection capability by analyzing drug metabolites housed within the hair shaft. This method serves essential uses in workplace protocols, legal proceedings, child custody evaluations, and any scenario necessitating insight into an individual's prolonged substance use.

Testing Methods & Collection Process

  • 1. Donor Identity Verification: Collection begins post-presentation of a government-issued ID, with complete consent and chain-of-custody documented to uphold legal standards.
  • 2. Hair Collection Procedure: A professional collector acquires a portion of hair, typically 100-120 strands, clipped near the scalp, with the crown region preferred. Absent cranial hair, body hair serves as an alternative. The procedure is swift, painless, and conducted under attentive oversight.
  • 3. Chain of Custody Documentation: Completion of a Hair Drug Test Custody and Control Form assures documentation of specimen acquisition, sealing, and conveyance, safeguarding legal defensibility and process protection.
  • 4. Laboratory Preparation & Analysis: Several forensic steps encompass lab analysis:
    • Decontamination: Hair undergoes washing to remove external impurities or exposures.
    • Cutting/Grinding: Segmentation/pulverization of hair for extraction readiness.
    • Extraction: Chemical extraction of drug metabolites from the hair.
  • Samples are subjected to advanced testing:
    • Initial Screening: Utilizes immunoassay techniques for drug class identification.
    • Confirmation Testing: Implements GC/MS or LC/MS for drug/metabolite specificity with scientific accuracy.
  • 5. Metabolite Detection: As hair grows, drug metabolites become embedded within the hair, documenting substance use history. This binding makes detection impervious to tampering or evasion.
  • 6. MRO Review: A Medical Review Officer reviews all non-negative results to validate accuracy, explore medical explanations, and issue a final official determination.

How Long Do Hair Test Results Take?

  • Standard Hair Test: Results within 2-3 business days once the lab receives the sample.
  • Complex Panels or Alcohol Testing (EtG/FAEE): Results in 3-5 business days subject to the panel.

Though results take longer than urine tests, the rigorous procedure ensures enduring reliable detection.

Benefits of Hair Drug & Alcohol Testing

  • 90-day detection window documenting substance consumption patterns.
  • Extremely challenging to deceive or manipulate.
  • Maps consistent, intermittent, or discontinued drug usage patterns.
  • Highly suited for legal, custodial, and compliance monitoring.
  • Non-invasive, brief collection method.
  • Exceptionally precise corroboration via GC/MS or LC/MS testing.

Limitations of Hair Drug & Alcohol Testing

  • Does not disclose recent drug/alcohol use (5-7 days post-consumption).
  • Costlier than urine/oral fluid evaluations.
  • Inexact timeframe for body hair sample detection.
  • Anomalous integration of substances by hair type/growth rate.
  • Not utilized or recognized for DOT stipulations.

Notwithstanding such constraints, hair analysis is esteemed amongst employers, legal experts, and individuals for tamper-proof and accurate long-term diagnostics.

Alcohol & Drug Testing-How Each Method Works

Explore Comprehensive Drug & Alcohol Testing Methods in Merrimack, NH

At Accredited Drug Testing, we offer a variety of robust alcohol and drug testing services tailored to meet the diverse requirements of employers, DOT mandates, legal obligations, and personal needs. Gaining a deeper understanding of how each testing option functions guarantees accurate selection, reliable outcomes, and full compliance with federal and state regulations. Through a nationwide network, accredited laboratories, and professional Medical Review Officers, we are dedicated to delivering precision, trust, and professionalism that Merrimack, NH clients can rely on.

Alcohol Urine Drug Test

An alcohol urine test is designed to detect recent alcohol consumption by identifying ethanol metabolites present in the urine. This testing method is extensively used in workplace settings, for court-ordered screenings, and post-incident analyses. Despite not measuring immediate impairment, it offers a narrow detection window of a few hours, making it a fast, cost-effective option for screening purposes.

EtG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test is recognized for its sensitivity, being capable of identifying alcohol consumption up to 80 hours after intake. As EtG is a direct metabolite of ethanol, the test is favored by courts, rehabilitation programs, and regulatory agencies for its reliability and extended detection timeframe.

Breath Alcohol Test

The breath alcohol test gauges present impairment by measuring the alcohol concentration in deep lung air. Performed using DOT-approved breath devices (EBTs), it offers immediate, legally defensible results, fitting for DOT-covered employees, workplaces, post-incident, and suspicion-based testing.

Blood Alcohol Test

A blood alcohol test directly quantifies the amount of ethanol in the bloodstream, making it one of the most precise methods to assess impairment. It is routinely employed by hospitals, law enforcement, and legal professionals in DUI cases, emergency healthcare, and significant legal inquiries.

PEth Alcohol Blood Test

The PEth (Phosphatidylethanol) blood test identifies chronic or heavy alcohol usage by recognizing alcohol-specific biomarkers within red blood cells. The test can track use up to 2-3 weeks and is considered an exceptionally reliable marker for long-term alcohol consumption behavior, making it ideal for family law, monitoring, treatment centers, and safety-sensitive pre-employment screenings.

EtG Alcohol Test (Hair)

With a hair EtG test, a 90-day detection window is provided by analyzing alcohol metabolites entrenched in the hair shaft, spotting recurring consumption habits rather than single events. Its stability, accuracy, and resistance to abstinence efforts make it a staple in courtroom proceedings, child custody disputes, and extended monitoring initiatives.

Through expert insight, certified nationwide laboratories, and prompt scheduling, Accredited Drug Testing guarantees that each alcohol screening test in Merrimack, NH delivers clear, defensible, and compliant results, aiding individuals and businesses in maintaining informed decisions, managing safety, and adhering to all regulatory requirements.


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

This is by far the easiest

This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.

Jason Jackson - 7/19/2025

A very nice company

A very nice company of expertise. The staff will go above to help you out of your situation in a timely matter 👏

Tam Jack - 2/19/2025

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

Saved My CDL!

Time was running out before my Cdl got downgraded because of a violation I had on clearinghouse. I couldn't find an employer to send me for my return to duty test, but these guys had my test scheduled and done in the same day! They saved my cdl. Thank you again!

Michael Williams - 12/2/2024

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


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(800) 221-4291