Colma, CA Facts, Population, Income, Demographics, Economy

Population (male): 705

Median Rent: Median gross rent in 2017: $1,948.

Sex Offenders: According to our research of California and other state lists, there was 1 registered sex offender living in Colma, California as of January 16, 2021. The ratio of all residents to sex offenders in Colma is 1,560 to 1.The ratio of registered sex offenders to all residents in this city is lower than

Ancestries: Ancestries: European (2.2%), German (1.6%), Italian (1.6%), American (1.1%), Arab (1.0%).

Elevation: 100 feet

Land Area: 1.91 square miles.

Population Density:

Zip Codes: 94014, 94080

Colma became the site for numerous cemeteries after San Francisco outlawed new interments within city limits in 1900, then evicted all existing cemeteries in 1912. Approximately 150,000 bodies were moved between 1920 and 1941 at a cost of $10 per grave and marker. Those for whom no one paid the fee were reburied in mass graves, and the markers were recycled in various San Francisco public works. The completion of the relocation was delayed until after World War II; these events are the subject of A Second Final Rest: The History of San Francisco's Lost Cemeteries (2005), a documentary by Trina Lopez. The main rail line between San Francisco and San Jose running through Colma had been bypassed in 1907 for a route closer to the San Francisco Bay shoreline, and the former main line was repurposed as a branch line to move coffins to Colma. Decades later, the right-of-way for the rail line through Colma was purchased by BART for use in the San Francisco International Airport extension project.

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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 Colma, CA

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


Hair follicle drug testing Colma, 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 Colma, CA centers are available to assist our clients throughout the entire process and all of our hair follicle drug testing Colma, 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 Professionals 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 includes 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 Colma, 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 Colma, CA.


1900 SULLIVAN AVE 0.8 miles

1900 SULLIVAN AVE
DALY CITY, CA 94015
Categories: DALY CITY CA

International Terminal Level 3 A Side 2.2 miles

International Terminal Level 3 A Side
SAN FRANCISCO, CA 94128
Categories: SAN FRANCISCO CA

3 S LINDEN AVE 3.2 miles

3 S LINDEN AVE
SOUTH SAN FRANCISCO, CA 94080
Categories: SOUTH SAN FRANCISCO CA

801 TRAEGER AVE Ste 212 3.9 miles

801 TRAEGER AVE Ste 212
SAN BRUNO, CA 94066
Categories: SAN BRUNO CA

3555 CESAR CHAVEZ 5.4 miles

3555 CESAR CHAVEZ
SAN FRANCISCO, CA 94110
Categories: SAN FRANCISCO CA

On-site only 5.5 miles

On-site only
San Francisco, CA 94124
Categories: San Francisco CA

SFIA Terminal 2 5.7 miles

SFIA Terminal 2
San Francisco, CA 94125
Categories: San Francisco CA

505 PARNASSUS AVE Ste 896 6.0 miles

505 PARNASSUS AVE Ste 896
SAN FRANCISCO, CA 94143
Categories: SAN FRANCISCO CA

2198 15th St, 6.3 miles

2198 15th St,
San Francisco, CA 94114
Categories: San Francisco CA

Castro & Duboce St, South Tower Ste 160A 6.7 miles

Castro & Duboce St, South Tower Ste 160A
SAN FRANCISCO, CA 94114
Categories: SAN FRANCISCO CA

1663 ROLLINS RD 6.9 miles

1663 ROLLINS RD
BURLINGAME, CA 94010
Categories: BURLINGAME CA

2 CONNECTICUT ST STE 1 7.0 miles

2 CONNECTICUT ST STE 1
SAN FRANCISCO, CA 94107
Categories: SAN FRANCISCO CA

1501 TROUSDALE DR 7.1 miles

1501 TROUSDALE DR
BURLINGAME, CA 94010
Categories: BURLINGAME CA

1860 EL CAMINO REAL STE 400 7.4 miles

1860 EL CAMINO REAL STE 400
BURLINGAME, CA 94010
Categories: BURLINGAME CA

601 VAN NESS AVE Ste 2008 7.5 miles

601 VAN NESS AVE Ste 2008
SAN FRANCISCO, CA 94102
Categories: SAN FRANCISCO CA

2201 Post St, 7.5 miles

2201 Post St,
San Francisco, CA 94115
Categories: San Francisco CA

2300 SUTTER ST STE 102 7.6 miles

2300 SUTTER ST STE 102
SAN FRANCISCO, CA 94115
Categories: SAN FRANCISCO CA

24 WILLIE MAYS PLZ 8.0 miles

24 WILLIE MAYS PLZ
SAN FRANCISCO, CA 94107
Categories: SAN FRANCISCO CA

900 HYDE ST 8.1 miles

900 HYDE ST
SAN FRANCISCO, CA 94109
Categories: SAN FRANCISCO CA

580 MARKET ST STE 100 8.4 miles

580 MARKET ST STE 100
SAN FRANCISCO, CA 94104
Categories: SAN FRANCISCO CA

845 JACKSON ST 8.7 miles

845 JACKSON ST
SAN FRANCISCO, CA 94133
Categories: SAN FRANCISCO CA

26 CALIFORNIA ST 8.8 miles

26 CALIFORNIA ST
SAN FRANCISCO, CA 94111
Categories: SAN FRANCISCO CA

49 DRUMM ST 8.8 miles

49 DRUMM ST
SAN FRANCISCO, CA 94111
Categories: SAN FRANCISCO CA

60 N EL CAMINO REAL 10.4 miles

60 N EL CAMINO REAL
SAN MATEO, CA 94401
Categories: SAN MATEO CA

2111 Whitehall Place, Suite D 12.6 miles

2111 Whitehall Place, Suite D
Alameda, CA 94501
Categories: Alameda CA

384 EMBARCADERO W 13.0 miles

384 EMBARCADERO W
OAKLAND, CA 94607
Categories: OAKLAND CA

2421 ENCINAL AVE STE A 13.2 miles

2421 ENCINAL AVE STE A
ALAMEDA, CA 94501
Categories: ALAMEDA CA

222 W 39TH AVE 13.4 miles

222 W 39TH AVE
SAN MATEO, CA 94403
Categories: SAN MATEO CA

1700 BROADWAY STE 310 13.7 miles

1700 BROADWAY STE 310
OAKLAND, CA 94612
Categories: OAKLAND CA

1098 FOSTER CITY BLVD, STE 102 14.0 miles

1098 FOSTER CITY BLVD, STE 102
FOSTER CITY, CA 94404
Categories: FOSTER CITY CA

6001 SHELLMOUND ST STE 850 14.4 miles

6001 SHELLMOUND ST STE 850
EMERYVILLE, CA 94608
Categories: EMERYVILLE CA

401 ROLAND WAY STE 205 14.6 miles

401 ROLAND WAY STE 205
OAKLAND, CA 94621
Categories: OAKLAND CA

350 HAWTHORNE AVE 14.6 miles

350 HAWTHORNE AVE
OAKLAND, CA 94609
Categories: OAKLAND CA

3300 WEBSTER ST, STE 1110 14.7 miles

3300 WEBSTER ST, STE 1110
OAKLAND, CA 94609
Categories: OAKLAND CA

7817 OAKPORT ST 14.9 miles

7817 OAKPORT ST
OAKLAND, CA 94621
Categories: OAKLAND CA

7901 OAKPORT ST STE 4950 2ND FLOOR 15.0 miles

7901 OAKPORT ST STE 4950 2ND FLOOR
OAKLAND, CA 94621
Categories: OAKLAND CA

3701 BROADWAY FL 5 15.0 miles

3701 BROADWAY FL 5
OAKLAND, CA 94611
Categories: OAKLAND CA

1555 DOOLITTLE DR STE 180 15.2 miles

1555 DOOLITTLE DR STE 180
SAN LEANDRO, CA 94577
Categories: SAN LEANDRO CA

125 SHOREWAY RD STE A 15.3 miles

125 SHOREWAY RD STE A
SAN CARLOS, CA 94070
Categories: SAN CARLOS CA

2850 7TH ST STE 100 15.3 miles

2850 7TH ST STE 100
BERKELEY, CA 94710
Categories: BERKELEY CA

4069 PIEDMONT AVE STE 910 15.3 miles

4069 PIEDMONT AVE STE 910
OAKLAND, CA 94611
Categories: OAKLAND CA

1517 GRAND AVE 15.6 miles

1517 GRAND AVE
PIEDMONT, CA 94611
Categories: PIEDMONT CA

2587 MERCED ST 16.1 miles

2587 MERCED ST
SAN LEANDRO, CA 94577
Categories: SAN LEANDRO CA

2505 BATAAN ST STE O 16.3 miles

2505 BATAAN ST STE O
OAKLAND, CA 94607
Categories: OAKLAND CA

2450 ASHBY AVE 16.6 miles

2450 ASHBY AVE
BERKELEY, CA 94705
Categories: BERKELEY CA

1100 Laurel Street, Suite F 16.7 miles

1100 Laurel Street, Suite F
San Carlos, CA 94070
Categories: San Carlos CA

101 CASA BUENA DR 17.4 miles

101 CASA BUENA DR
CORTE MADERA, CA 94925
Categories: CORTE MADERA CA

170 ALAMEDA DE LAS PULGAS 17.6 miles

170 ALAMEDA DE LAS PULGAS
REDWOOD CITY, CA 94062
Categories: REDWOOD CITY CA

13939 E 14TH ST 17.6 miles

13939 E 14TH ST
SAN LEANDRO, CA 94578
Categories: SAN LEANDRO CA

2 FIFER AVE STE 130 18.4 miles

2 FIFER AVE STE 130
CORTE MADERA, CA 94925
Categories: CORTE MADERA CA

1400 VETERANS BLVD FL 1 18.5 miles

1400 VETERANS BLVD FL 1
REDWOOD CITY, CA 94063
Categories: REDWOOD CITY CA

120 BROADWAY STE 23 18.7 miles

120 BROADWAY STE 23
RICHMOND, CA 94804
Categories: RICHMOND CA

901 NEVIN AVE BLDG B FLOOR 1 18.8 miles

901 NEVIN AVE BLDG B FLOOR 1
RICHMOND, CA 94801
Categories: RICHMOND CA

1321 S ELISEO DR 1ST FL 18.9 miles

1321 S ELISEO DR 1ST FL
GREENBRAE, CA 94904
Categories: GREENBRAE CA

1220 S ELISEO DR 18.9 miles

1220 S ELISEO DR
GREENBRAE, CA 94904
Categories: GREENBRAE CA

250 BON AIR RD 19.0 miles

250 BON AIR RD
GREENBRAE, CA 94904
Categories: GREENBRAE CA

1300 South Eliseo Drive, Suite 101 19.0 miles

1300 South Eliseo Drive, Suite 101
Greenbrae, CA 94904
Categories: Greenbrae CA

3726 BARRETT AVE 19.2 miles

3726 BARRETT AVE
RICHMOND, CA 94805
Categories: RICHMOND CA

26250 INDUSTRIAL BLVD STE 32 19.3 miles

26250 INDUSTRIAL BLVD STE 32
HAYWARD, CA 94545
Categories: HAYWARD CA

25 BELLAM BLVD STE 101 19.6 miles

25 BELLAM BLVD STE 101
SAN RAFAEL, CA 94901
Categories: SAN RAFAEL CA

1125 SIR FRANCIS DRAKE BLVD STE N 20.2 miles

1125 SIR FRANCIS DRAKE BLVD STE N
KENTFIELD, CA 94904
Categories: KENTFIELD CA

2000 VALE RD 20.2 miles

2000 VALE RD
SAN PABLO, CA 94806
Categories: SAN PABLO CA

20400 Lake Chabot Rd Ste 101, 20.5 miles

20400 Lake Chabot Rd Ste 101,
Castro Valley, CA 94546
Categories: Castro Valley CA

27200 CALAROGA AVE 20.5 miles

27200 CALAROGA AVE
HAYWARD, CA 94545
Categories: HAYWARD CA

2425 CHURCH LN 20.6 miles

2425 CHURCH LN
SAN PABLO, CA 94806
Categories: SAN PABLO CA

29000 HESPERIAN BLVD 20.8 miles

29000 HESPERIAN BLVD
HAYWARD, CA 94545
Categories: HAYWARD CA

24326 MISSION BLVD STE 3 20.9 miles

24326 MISSION BLVD STE 3
HAYWARD, CA 94544
Categories: HAYWARD CA

3555 WHIPPLE RD 21.2 miles

3555 WHIPPLE RD
UNION CITY, CA 94587
Categories: UNION CITY CA

2970 HILLTOP MALL RD STE 203 22.0 miles

2970 HILLTOP MALL RD STE 203
RICHMOND, CA 94806
Categories: RICHMOND CA

300 PASTEUR DR 22.8 miles

300 PASTEUR DR
PALO ALTO, CA 94304
Categories: PALO ALTO CA

4749 SURREY LN 22.9 miles

4749 SURREY LN
EL SOBRANTE, CA 94803
Categories: EL SOBRANTE CA

795 EL CAMINO REAL 23.0 miles

795 EL CAMINO REAL
PALO ALTO, CA 94301
Categories: PALO ALTO CA

33077 ALVARADO NILES RD 23.5 miles

33077 ALVARADO NILES RD
UNION CITY, CA 94587
Categories: UNION CITY CA

33560 ALVARADO NILES RD 23.9 miles

33560 ALVARADO NILES RD
UNION CITY, CA 94587
Categories: UNION CITY CA

35500 DUMBARTON CT 24.0 miles

35500 DUMBARTON CT
NEWARK, CA 94560
Categories: NEWARK CA

99 MONTECILLO RD MOB 1 24.4 miles

99 MONTECILLO RD MOB 1
SAN RAFAEL, CA 94903
Categories: SAN RAFAEL CA

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Alcohol Testing Colma, CA Services

(800)221-4291

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

Comprehensive Guide to Hair Follicle Drug Testing

Hair follicle drug testing is a sophisticated technique used to detect both illicit drug use and the misuse of prescription drugs over an extended period. This method of testing is favored for its ability to provide a detailed drug use history far beyond the capability of standard urine tests, which only capture drug use within days of consumption.

Understanding Hair Follicle Drug Testing

During a hair follicle drug test, a small sample of hair is collected, usually from the head. This sample is then analyzed to detect drug molecules and their metabolites that have been deposited into the hair from the bloodstream. Drugs that can be detected include but are not limited to cannabis, cocaine, opiates, and methamphetamine.

Key Applications

  • Workplace Compliance: Employers often implement hair follicle testing to maintain a drug-free work environment, especially in industries where safety is paramount.
  • Legal Evidence: In the legal arena, these tests can provide compelling evidence in cases such as custody disputes or driving under the influence (DUI) incidents.
  • Substance Abuse Monitoring: Rehabilitation centers may utilize hair tests to monitor individuals over time, ensuring adherence to treatment programs.

Benefits of Hair Follicle Drug Testing

  1. Extended Window of Detection: Unlike other tests, hair follicle testing can detect drug use up to 90 days back, offering a long-range view into an individual's drug history.
  2. Low Risk of Tampering: Since hair samples are collected directly and observed, the risk of sample tampering is significantly reduced compared to other forms of testing.
  3. Less Invasive: Collecting hair is far less intrusive compared to blood tests, making it more comfortable for the individual being tested.

Limitations to Consider

Despite its advantages, hair follicle testing isn't without its challenges:

  • Rate of Hair Growth: Variations in hair growth rates can affect the detection period, slightly complicating the interpretation of results.
  • Environmental Contamination: In rare cases, drugs can be externally deposited onto the hair, although rigorous washing protocols before testing help mitigate this issue.
  • Cultural Sensitivity: The need for a hair sample can pose dilemmas for individuals with cultural or religious practices affecting their hair.

Hair follicle drug testing stands out as a reliable method for analyzing long-term drug use. Its application spans various fields from corporate environments to legal settings, making it an indispensable tool for ensuring safety and compliance with drug policies.

Local Area Info: Colma, California

Colma is a small incorporated town in San Mateo County, California, on the San Francisco Peninsula in the San Francisco Bay Area. The population was 1,792 at the 2010 census. The town was founded as a necropolis in 1924.

With most of Colma's land dedicated to cemeteries, the population of the dead—about 1.5 million, as of 2006—outnumbers that of the living by nearly a thousand to one. This has led to Colma's being called "the City of the Silent" and has given rise to a humorous motto, now recorded on the city's website: "It's great to be alive in Colma."

The origin of the name Colma is widely disputed. Before 1872, Colma was designated as "Station" or "School House Station", the name of its post office in 1869. Currently, there seem to be seven possible sources of the town's being called Colma:

Show Regional Data

Population (male): 705

Median Rent: Median gross rent in 2017: $1,948.

Sex Offenders: According to our research of California and other state lists, there was 1 registered sex offender living in Colma, California as of January 16, 2021. The ratio of all residents to sex offenders in Colma is 1,560 to 1.The ratio of registered sex offenders to all residents in this city is lower than

Ancestries: Ancestries: European (2.2%), German (1.6%), Italian (1.6%), American (1.1%), Arab (1.0%).

Elevation: 100 feet

Land Area: 1.91 square miles.

Population Density:

Zip Codes: 94014, 94080

Colma became the site for numerous cemeteries after San Francisco outlawed new interments within city limits in 1900, then evicted all existing cemeteries in 1912. Approximately 150,000 bodies were moved between 1920 and 1941 at a cost of $10 per grave and marker. Those for whom no one paid the fee were reburied in mass graves, and the markers were recycled in various San Francisco public works. The completion of the relocation was delayed until after World War II; these events are the subject of A Second Final Rest: The History of San Francisco's Lost Cemeteries (2005), a documentary by Trina Lopez. The main rail line between San Francisco and San Jose running through Colma had been bypassed in 1907 for a route closer to the San Francisco Bay shoreline, and the former main line was repurposed as a branch line to move coffins to Colma. Decades later, the right-of-way for the rail line through Colma was purchased by BART for use in the San Francisco International Airport extension project.

(800) 221-4291