Portola, CA Facts, Population, Income, Demographics, Economy

Population (male): 988

Population (female): 942

Median Age: 47.8 years

Median Rent: Median gross rent in 2017: $694.

Cost of Living: March 2019 cost of living index in Portola: 92.3 (less than average, U.S. average is 100)

Poverty (breakdown): (26.6% for White Non-Hispanic residents, 31.8% for Hispanic or Latino residents, 50.0% for American Indian residents, 94.0% for other race residents, 30.6% for two or more races residents)

Sex Offenders: According to our research of California and other state lists, there were 6 registered sex offenders living in Portola, California as of January 16, 2021. The ratio of all residents to sex offenders in Portola is 352 to 1.>

Elevation: 4860 feet

Land Area: 2.24 square miles.

Zip Codes: 96122

Being on the eastern slopes of the Sierra Nevada, Portola has a continental Mediterranean climate (Köppen Dsb) with dry summers characterized by extreme diurnal temperature swings, and cold (though not severe) and snowy winters. Frosts occur on 218 mornings per year – more even than at Flagstaff, Arizona – but extreme cold is rare and temperatures below 0 °F or −17.8 °C are observed on average during only 2.6 mornings per winter, while highs top freezing on all but nine afternoons during an average year. During the summer, daytime temperatures can be hot, but 100 °F or 37.8 °C is reached on average only once every two years. Snowfall is less heavy than on the western slopes, but reached as high as 112 inches (2.84 m) in January 1916.

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Recognitions and Certifications

Accredited Drug Testing has been recognized as one of the "Top 10 drug testing companies" for excellent customer service and we have received TPA Accreditation from the National Drug and Alcohol Screening Association. We are active in all drug testing industry associations and our staff are trained and certified as drug and alcohol testing specialists.

Important Links

National Drug and Alcohol Screening Association (https://ndasa.com/)

National Drug Free Workplace Alliance (https://www.ndwa.org/)

Substance Abuse Program Administrators Association (https://www.sapaa.com/)

Substance Abuse Mental Health Safety Administration (https://www.samhsa.gov/)

US Drug Enforcement Administration (https://www.dea.gov/)

Office of Drug alcohol Policy Control (https://www.transportation.gov/odapc)

Hair Follicle Drug Testing 1

Hair Follicle Drug Testing Portola, CA

Accredited Drug Testing Inc provides Hair Follicle drug testing Portola, CA for individuals and employers needing a drug test utilizing the hair follicle analysis process. To schedule a hair follicle drug test in Portola, CA, Call (800) 221-4291. Most testing centers are within minutes of your home or office.


Hair follicle drug testing Portola, CA is available for 5, 10, and 12 panel drug screenings.

To schedule a Hair Follicle Drug Test at one of our testing centers in the Grady county area, Call (800) 221-4291, Same Day Service Available. Testing centers do not require an appointment, but you must call and register for the test.

Hair follicle drug testing is becoming a more popular method by employers and individuals in need of a drug test due to the detection time frame being longer than a standard urine test.

Local Hair follicle drug testing Portola, CA centers are available to assist our clients throughout the entire process and all of our hair follicle drug testing Portola, CA facilities have certified drug testing technicians available to conduct a hair follicle drug test collection.

Hair Follicle Drug Test

In recent years the method to conduct drug testing has more frequently included a hair follicle drug test. Many employers, courts and Substance Abuse Professional are requiring a hair follicle drug test instead of a standard urine test. Hair follicle drug tests are used by employers who have zero tolerance drug use policies, courts and individuals on probation. The primary benefit of a hair follicle drug test include a much longer detection period for drug use which typically is up to 90 days. However, when screening drug use within the last 5 days the urine test continues to be the most accurate test.

Hair Follicle Drug Test Process

The procedure used to perform a hair follicle test is simple, the drug testing specialist will cut approximately 120 strands of hair (not really a lot) utilize a chain of custody procedure and send the hair to a certified laboratory for analysis. Drug testing centers require at least 1.5 inches of hair to perform this test and the hair generally needs to come from the head, however if the donor does not have head hair certain testing centers can use hair from chest, leg or arm pit.

If a donor has no hair on their body, than a hair test cannot be performed!

Hair Follicle Drug Test Results

Once the hair follicles have been analyzed by a certified laboratory they will then be reviewed and then verified by a Medical Review Officer (licensed Physician) who will than release the results. Generally a negative hair follicle drug test result is available in 2-3 days. A non-negative hair follicle drug test is available in approximately 5 days.

Urine cut-off levels are expressed in nanograms per milliliter (ng/mL) or as a weight of drug per unit volume of urine. Hair cut-off levels are expressed in picograms per milligram (pg/mg) or as a weight of drug per unit weight of hair

5 Panel Hair Follicle Drug Test

The 5 panel hair follicle drug test screens for the following

  • Amphetamine
  • Cocaine
  • Marijuana
  • Opiates
  • Phencyclidine

5 Panel w/ Expanded Opiates Hair Follicle Drug Test

The 5 panel w/ expanded Opiates hair drug test screens for the standard 5 drugs but will also screen for Opiate class drugs such as pain killers, which may indicate abuse of prescription drugs

  • Amphetamine
  • Cocaine
  • Codeine
  • Marijuana
  • Morphine
  • Phencyclidine
  • Hydrocodone
  • Hydromorphone
  • Oxycodone
  • Oxymorphone
  • 6 AM- Heroine

10 Panel Hair Follicle Drug Test

The 10 panel hair follicle drug test screens for the following

  • Amphetamines
  • Barbiturates
  • Benzodiazepines
  • Cocaine
  • Marijuana
  • Methadone
  • Methamphetamine
  • Opiates
  • Phencyclidine
  • Propoxyphene

12 Panel Hair Follicle Drug Test

The 12 panel hair follicle drug test screens for the following

  • Amphetamines
  • Barbiturates
  • Benzodiazepines
  • Cocaine
  • Marijuana
  • Meperidine
  • Methadone
  • Opiates
  • Oxycodone
  • Phencyclidine
  • Propoxyphene
  • Tramadol

To schedule a Hair follicle Drug Testing Portola, CA Call (800)221-4291.

Accredited Drug Testing Inc. is pleased to provide hair follicle drug testing, alcohol testing, occupational health and DNA testing services in Portola, CA.


883 VALLEY VIEW DR ON-SITE ONLY 24.1 miles

883 VALLEY VIEW DR ON-SITE ONLY
QUINCY, CA 95971
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Alcohol Testing Portola, CA Services

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For more information regarding the effects of drug abuse - Click Here

For more information on a drug free work place - Click Here

Handy Resources

Comprehensive Online Resources for Drug Testing

  1. National Institute on Drug Abuse (NIDA)

    Provides comprehensive information on drug testing and its role in substance use disorder treatment.

  2. FDA: Drug Testing

    Explains the FDA's role and regulations concerning drug testing for consumers.

  3. PDR.net

    Provides detailed drug information and safety updates through a mobile-friendly platform.

  4. BeSafeRx - FDA

    Resource by the FDA to help consumers identify and choose safe online pharmacies.

  5. SAMHSA: Drug Testing Resources for the Workplace

    Resources and guidelines for drug testing in the workplace.

  6. Drugs.com

    Provides drug information, side effects, and interactions for consumers and professionals.

  7. Drug Abuse Screening Test (DAST)

    Online version of the DAST to help individuals assess whether they have a drug problem.

  8. Merck Manuals

    Consumer-friendly medical resource providing comprehensive information on a wide array of health topics, including drug testing.

  9. SAMHSA Store

    Provides access to resources and publications on substance use prevention and treatment.

  10. National Association of Boards of Pharmacy (NABP)

    Information on state boards of pharmacy and regulations, including those related to drug testing.

  11. CDC: Workplace Health Promotion

    CDC's resources on substance use and drug testing in the workplace.

  12. Mayo Clinic: Drug Testing

    General information about the procedures and types of drug tests.

  13. MedlinePlus: Drug Testing

    Offers information about various drug tests and their uses in medical diagnosis and treatment.

  14. University of Rochester Medical Center Health Encyclopedia

    Provides a detailed entry on drug testing, including how tests are conducted and what they detect.

  15. World Health Organization (WHO)

    International guidelines and information on public health, including substance abuse and drug testing.

  16. Healthline: Drug Testing

    Consumer health site offering information on how drug tests work and what they look for.

  17. WebMD: Drug Testing

    Provides a patient-oriented overview of drug testing and its purposes.

  18. National Center for Biotechnology Information (NCBI)

    Provides a vast database of scientific studies, including research on drug testing and its effectiveness.

AI Overview

Hair Follicle Drug Testing: An Overview

Hair follicle drug testing is a method used to detect the use of illicit drugs or the misuse of prescription drugs over an extended period. Unlike urine tests, which can detect recent drug use, hair follicle testing provides a longer window of detection, typically up to 90 days. This overview explores how hair follicle drug testing works, its applications, and its benefits.

How Hair Follicle Drug Testing Works

The process involves taking a small sample of hair, usually from the head but sometimes from the body if scalp hair is insufficient. The hair is tested to identify drugs and their metabolites, which are deposited in the hair from the bloodstream. This method is sensitive to a wide range of substances, including marijuana, cocaine, opiates, methamphetamine, and phencyclidine (PCP).

Applications of Hair Follicle Drug Testing

  • Employment Screening: Many employers use hair follicle testing as part of their pre-employment screening processes and in regular checks to ensure a drug-free workplace.
  • Legal and Forensic Cases: This testing is used in legal settings to provide evidence in custody disputes, DUI cases, and other legal matters requiring proof of drug use.
  • Rehabilitation Monitoring: Health care providers and rehab centers use hair tests to monitor individuals recovering from drug addiction.

Advantages of Hair Follicle Drug Testing

  1. Long Detection Period: Can detect drug use for up to 90 days, making it more effective for identifying long-term drug use than other testing methods.
  2. Tamper Resistance: The nature of hair sample collection makes it difficult to tamper with or substitute samples, providing more accurate results.
  3. Non-invasive: The process is simple and does not require the handling of bodily fluids, making it less invasive and safer to administer.

Considerations and Limitations

While hair follicle drug testing is highly effective, there are considerations to keep in mind:

  • Growth Rate Variability: Hair growth rates can vary from person to person, potentially affecting the detection window.
  • Potential for External Contamination: Drugs can sometimes be absorbed from the environment, leading to potential false positives, though washing the hair sample prior to testing can mitigate this risk.
  • Cultural and Personal Concerns: The requirement of hair samples can raise concerns among those with hair loss or individuals whose cultural practices affect hair grooming or styling.

Hair follicle drug testing is a reliable and comprehensive method for detecting drug use over an extended period. It is widely used across various sectors for its accuracy and tamper-resistant methodology, making it a valuable tool in maintaining drug-free environments and supporting legal and medical interventions.

Local Area Info: Portola Valley, California

Portola Valley is an incorporated town in San Mateo County, California, United States, which was founded in 1964. It is the wealthiest town in America per the American Community Survey, based on per-capita income for communities larger than 4,000. Home prices are also among the highest in the nation.

The Native Americans already present were Ohlone and specifically the group (or groups) known as Olpen or Guemelento but these were later moved to Mission Dolores and Mission Santa Clara de Asís which claimed the land and peoples. The area's written history dates back to 1833, when a square league of land was given to Domingo Peralta and Máximo Martínez by Governor José Figueroa to form the Rancho Cañada del Corte de Madera. In those days it was used for lumbering and cattle grazing. By the 1880s Andrew S. Hallidie, a wire rope manufacturer, had built his country home of Eagle Home Farm in what is now Portola Valley. He built a 7,341 foot long aerial tramway from his house to the top of Skyline in 1894 though it was removed after his death in 1900.

In 1886 the name Portola-Crespi Valley was bestowed on the area from the then community of Crystal Springs (now under Crystal Springs Reservoir to the then community of Searsville (in the area of the present day Jasper Ridge Biological Preserve); Crespi is for Juan Crespí, a Franiciscan friar with the Portola expedition.

Show Regional Data

Population (male): 988

Population (female): 942

Median Age: 47.8 years

Median Rent: Median gross rent in 2017: $694.

Cost of Living: March 2019 cost of living index in Portola: 92.3 (less than average, U.S. average is 100)

Poverty (breakdown): (26.6% for White Non-Hispanic residents, 31.8% for Hispanic or Latino residents, 50.0% for American Indian residents, 94.0% for other race residents, 30.6% for two or more races residents)

Sex Offenders: According to our research of California and other state lists, there were 6 registered sex offenders living in Portola, California as of January 16, 2021. The ratio of all residents to sex offenders in Portola is 352 to 1.>

Elevation: 4860 feet

Land Area: 2.24 square miles.

Zip Codes: 96122

Being on the eastern slopes of the Sierra Nevada, Portola has a continental Mediterranean climate (Köppen Dsb) with dry summers characterized by extreme diurnal temperature swings, and cold (though not severe) and snowy winters. Frosts occur on 218 mornings per year – more even than at Flagstaff, Arizona – but extreme cold is rare and temperatures below 0 °F or −17.8 °C are observed on average during only 2.6 mornings per winter, while highs top freezing on all but nine afternoons during an average year. During the summer, daytime temperatures can be hot, but 100 °F or 37.8 °C is reached on average only once every two years. Snowfall is less heavy than on the western slopes, but reached as high as 112 inches (2.84 m) in January 1916.

(800) 221-4291