Redwood City, CA Facts, Population, Income, Demographics, Economy

Population (male): 45,509

Population (female): 41,176

Cost of Living: March 2019 cost of living index in Redwood City: 173.8 (very high, U.S. average is 100)

Ancestries: Ancestries: German (5.0%), Italian (4.3%), American (3.7%), Irish (2.8%), English (2.0%), European (1.6%).

Population Density:

Zip Codes: 94065

In August 2006, a 20-screen theater and various shops opened in a prime downtown location. The theater complex boasts restaurant and retail space at street level and a 2-level underground parking structure.

Goldribbon

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)

Drug Testing1

Employment, DOT, Court Ordered, Probation, Family

Scheduling a test is Fast and Easy, call our scheduling department or schedule your test online 24/7

* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center.

Drug Testing Redwood City, CA

1400 VETERANS BLVD FL 1 1.0 miles

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

170 ALAMEDA DE LAS PULGAS 1.0 miles

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

1100 Laurel Street, Suite F 1.4 miles

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

125 SHOREWAY RD STE A 2.8 miles

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

222 W 39TH AVE 4.6 miles

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

300 PASTEUR DR 4.8 miles

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

1098 FOSTER CITY BLVD, STE 102 4.9 miles

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

795 EL CAMINO REAL 5.0 miles

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

60 N EL CAMINO REAL 7.7 miles

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

2290 W EL CAMINO REAL STE 4 9.4 miles

2290 W EL CAMINO REAL STE 4
MOUNTAIN VIEW, CA 94040
Categories: MOUNTAIN VIEW CA

1860 EL CAMINO REAL STE 400 10.7 miles

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

35500 DUMBARTON CT 11.0 miles

35500 DUMBARTON CT
NEWARK, CA 94560
Categories: NEWARK CA

1501 TROUSDALE DR 11.0 miles

1501 TROUSDALE DR
BURLINGAME, CA 94010
Categories: BURLINGAME CA

1663 ROLLINS RD 11.2 miles

1663 ROLLINS RD
BURLINGAME, CA 94010
Categories: BURLINGAME CA

3555 WHIPPLE RD 11.8 miles

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

2500 GRANT RD 11.9 miles

2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Categories: MOUNTAIN VIEW CA

573 W EL CAMINO REAL 11.9 miles

573 W EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Categories: MOUNTAIN VIEW CA

29000 HESPERIAN BLVD 12.2 miles

29000 HESPERIAN BLVD
HAYWARD, CA 94545
Categories: HAYWARD CA

26250 INDUSTRIAL BLVD STE 32 12.3 miles

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

33077 ALVARADO NILES RD 13.0 miles

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

27200 CALAROGA AVE 13.0 miles

27200 CALAROGA AVE
HAYWARD, CA 94545
Categories: HAYWARD CA

901 W EL CAMINO REAL 13.2 miles

901 W EL CAMINO REAL
SUNNYVALE, CA 94087
Categories: SUNNYVALE CA

33560 ALVARADO NILES RD 13.2 miles

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

39180 FARWELL DR STE 231 13.5 miles

39180 FARWELL DR STE 231
FREMONT, CA 94538
Categories: FREMONT CA

877 W Fremont Avenue, Ste H-2 13.8 miles

877 W Fremont Avenue, Ste H-2
Sunnyvale, CA 94087
Categories: Sunnyvale CA

5763 STEVENSON BLVD 13.9 miles

5763 STEVENSON BLVD
NEWARK, CA 94560
Categories: NEWARK CA

42650 CHRISTY ST 14.1 miles

42650 CHRISTY ST
FREMONT, CA 94538
Categories: FREMONT CA

801 TRAEGER AVE Ste 212 14.2 miles

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

2147 MOWRY AVE STE C1 14.8 miles

2147 MOWRY AVE STE C1
FREMONT, CA 94538
Categories: FREMONT CA

3161 WALNUT AVE 14.9 miles

3161 WALNUT AVE
FREMONT, CA 94538
Categories: FREMONT CA

2000 MOWRY AVE 14.9 miles

2000 MOWRY AVE
FREMONT, CA 94538
Categories: FREMONT CA

3 S LINDEN AVE 15.0 miles

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

1195 E ARQUES AVE BLDG 1 15.0 miles

1195 E ARQUES AVE BLDG 1
SUNNYVALE, CA 94085
Categories: SUNNYVALE CA

10050 N WOLFE RD Ste SW1-190 15.0 miles

10050 N WOLFE RD Ste SW1-190
CUPERTINO, CA 95014
Categories: CUPERTINO CA

10050 BUBB RD STE 3 15.1 miles

10050 BUBB RD STE 3
CUPERTINO, CA 95014
Categories: CUPERTINO CA

24326 MISSION BLVD STE 3 15.2 miles

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

39400 Padeo Padre Pkwy Mission Bldg 15.4 miles

39400 Padeo Padre Pkwy Mission Bldg
Fremont, CA 94538
Categories: Fremont CA

556 Mowry Avenue, Suite 103 15.5 miles

556 Mowry Avenue, Suite 103
Fremont, CA 94536
Categories: Fremont CA

2587 MERCED ST 15.6 miles

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

International Terminal Level 3 A Side 15.8 miles

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

1555 DOOLITTLE DR STE 180 15.9 miles

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

3225 SELDON CT 16.0 miles

3225 SELDON CT
FREMONT, CA 94539
Categories: FREMONT CA

2737 WALSH AVE 16.2 miles

2737 WALSH AVE
SANTA CLARA, CA 95051
Categories: SANTA CLARA CA

13939 E 14TH ST 16.6 miles

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

20400 Lake Chabot Rd Ste 101, 16.7 miles

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

46305 WARM SPRINGS BLVD 16.8 miles

46305 WARM SPRINGS BLVD
FREMONT, CA 94539
Categories: FREMONT CA

46752 MISSION BLVD STE A 16.9 miles

46752 MISSION BLVD STE A
FREMONT, CA 94539
Categories: FREMONT CA

46690 MOHAVE DR 17.0 miles

46690 MOHAVE DR
FREMONT, CA 94539
Categories: FREMONT CA

988 WALSH AVE 17.2 miles

988 WALSH AVE
SANTA CLARA, CA 95050
Categories: SANTA CLARA CA

1825 CIVIC CENTER DR STE 7 17.7 miles

1825 CIVIC CENTER DR STE 7
SANTA CLARA, CA 95050
Categories: SANTA CLARA CA

401 ROLAND WAY STE 205 17.8 miles

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

7901 OAKPORT ST STE 4950 2ND FLOOR 17.9 miles

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

7817 OAKPORT ST 18.0 miles

7817 OAKPORT ST
OAKLAND, CA 94621
Categories: OAKLAND CA

315 S ABBOTT AVE 18.2 miles

315 S ABBOTT AVE
MILPITAS, CA 95035
Categories: MILPITAS CA

SFIA Terminal 2 18.6 miles

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

On-site only 18.6 miles

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

1900 SULLIVAN AVE 18.8 miles

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

2111 Whitehall Place, Suite D 19.0 miles

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

700 E CALAVERAS BLVD 19.1 miles

700 E CALAVERAS BLVD
MILPITAS, CA 95035
Categories: MILPITAS CA

1717 S MAIN ST 19.1 miles

1717 S MAIN ST
MILPITAS, CA 95035
Categories: MILPITAS CA

2421 ENCINAL AVE STE A 19.1 miles

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

2105 FOREST AVE 19.7 miles

2105 FOREST AVE
SAN JOSE, CA 95128
Categories: SAN JOSE CA

123 Di Salvo Ave, Suite G 19.7 miles

123 Di Salvo Ave, Suite G
San Jose, CA 95128
Categories: San Jose CA

1400 COLEMAN AVE STE F13 STE F-13 19.8 miles

1400 COLEMAN AVE STE F13 STE F-13
SANTA CLARA, CA 95050
Categories: SANTA CLARA CA

1910 N Capitol Ave 20.3 miles

1910 N Capitol Ave
San Jose, CA 95132
Categories: San Jose CA

1580 WINCHESTER BLVD STE 202 20.5 miles

1580 WINCHESTER BLVD STE 202
CAMPBELL, CA 95008
Categories: CAMPBELL CA

3555 CESAR CHAVEZ 20.8 miles

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

242 MERIDIAN AVE STE C 20.9 miles

242 MERIDIAN AVE STE C
SAN JOSE, CA 95126
Categories: SAN JOSE CA

15 TILLMAN AVE 20.9 miles

15 TILLMAN AVE
SAN JOSE, CA 95126
Categories: SAN JOSE CA

2 CONNECTICUT ST STE 1 21.3 miles

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

384 EMBARCADERO W 21.5 miles

384 EMBARCADERO W
OAKLAND, CA 94607
Categories: OAKLAND CA

24 WILLIE MAYS PLZ 22.0 miles

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

5720 Stoneridge Mall Road, Suite 110 22.0 miles

5720 Stoneridge Mall Road, Suite 110
Pleasanton, CA 94588
Categories: Pleasanton CA

7601 STONERIDGE DR FL 1 22.2 miles

7601 STONERIDGE DR FL 1
PLEASANTON, CA 94588
Categories: PLEASANTON CA

Castro & Duboce St, South Tower Ste 160A 22.2 miles

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

2198 15th St, 22.2 miles

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

3880 S BASCOM AVE ste 109 22.3 miles

3880 S BASCOM AVE ste 109
SAN JOSE, CA 95124
Categories: SAN JOSE CA

3880 S BASCOM AVE STE 112 22.3 miles

3880 S BASCOM AVE STE 112
SAN JOSE, CA 95124
Categories: SAN JOSE CA

1700 BROADWAY STE 310 22.3 miles

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

2581 Samaritan Drive, Suite 108 22.5 miles

2581 Samaritan Drive, Suite 108
San Jose, CA 95124
Categories: San Jose CA

7667 AMADOR VALLEY BLVD 22.6 miles

7667 AMADOR VALLEY BLVD
DUBLIN, CA 94568
Categories: DUBLIN CA

505 PARNASSUS AVE Ste 896 22.7 miles

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

601 VAN NESS AVE Ste 2008 22.8 miles

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

266 N JACKSON AVE STE 4 22.8 miles

266 N JACKSON AVE STE 4
SAN JOSE, CA 95116
Categories: SAN JOSE CA

25, Via Luigi Pirandello 22.8 miles

25, Via Luigi Pirandello
Pedara, Catania, KS 95030
Categories: Pedara, Catania KS

580 MARKET ST STE 100 22.9 miles

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

2375 Montpelier Dr, Ste 20 22.9 miles

2375 Montpelier Dr, Ste 20
San Jose, CA 95116
Categories: San Jose CA

26 CALIFORNIA ST 23.1 miles

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

49 DRUMM ST 23.1 miles

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

4847 HOPYARD RD STE 4-424 23.2 miles

4847 HOPYARD RD STE 4-424
PLEASANTON, CA 94588
Categories: PLEASANTON CA

900 HYDE ST 23.2 miles

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

350 HAWTHORNE AVE 23.2 miles

350 HAWTHORNE AVE
OAKLAND, CA 94609
Categories: OAKLAND CA

3300 WEBSTER ST, STE 1110 23.2 miles

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

1517 GRAND AVE 23.4 miles

1517 GRAND AVE
PIEDMONT, CA 94611
Categories: PIEDMONT CA

2201 Post St, 23.4 miles

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

845 JACKSON ST 23.4 miles

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

3701 BROADWAY FL 5 23.5 miles

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

5635 W LAS POSITAS BLVD 23.5 miles

5635 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Categories: PLEASANTON CA

2300 SUTTER ST STE 102 23.5 miles

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

4069 PIEDMONT AVE STE 910 23.6 miles

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

1893 MONTEREY HWY STE 200 23.8 miles

1893 MONTEREY HWY STE 200
SAN JOSE, CA 95112
Categories: SAN JOSE CA

1901 MONTEREY HWY STE 10 23.8 miles

1901 MONTEREY HWY STE 10
SAN JOSE, CA 95112
Categories: SAN JOSE CA

2324 SANTA RITA RD STE 4 24.0 miles

2324 SANTA RITA RD STE 4
PLEASANTON, CA 94566
Categories: PLEASANTON CA

3128 SANTA RITA RD 24.2 miles

3128 SANTA RITA RD
PLEASANTON, CA 94566
Categories: PLEASANTON CA

2224 DELUCCHI DR 24.3 miles

2224 DELUCCHI DR
PLEASANTON, CA 94588
Categories: PLEASANTON CA

3200 BUSCH RD 24.3 miles

3200 BUSCH RD
PLEASANTON, CA 94566
Categories: PLEASANTON CA

3162 NEWBERRY DR ste G 24.4 miles

3162 NEWBERRY DR ste G
SAN JOSE, CA 95118
Categories: SAN JOSE CA

6001 SHELLMOUND ST STE 850 24.7 miles

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

2301 CAMINO RAMON STE 108 25.0 miles

2301 CAMINO RAMON STE 108
SAN RAMON, CA 94583
Categories: SAN RAMON CA

Don't see a location near you? Call us (800) 221-4291)

If you need a Drug, Alcohol, COVID-19 or DNA test in Redwood City, CA, Accredited Drug Testing has many drug testing locations in Redwood City, CA and the surrounding areas. Our drug testing centers provide urine drug testing, hair drug testing, alcohol testing, DOT physicals, DOT drug testing and DNA testing. Our drug and alcohol testing services are provided for employers in need of a pre-employment drug test, random drug test and post-accident drug test. We also provide testing for individuals needing a drug or alcohol test for court ordered reasons , probation or family purposes. Same day service is available and most drug testing Redwood City, CA locations are within minutes of your home or office. Drug testing methods include urine, oral/saliva, hair follicle, blood , ETG and breath alcohol testing. Negative test results are generally available in 24-48 hours.

"When You Need A Test, Choose The Best"

How to schedule a drug test in Redwood City, CA

Schedule Online or By Phone-Easy As 1, 2, 3

Step 1: Select and purchase your test online or call our Local scheduling center at (800)-221-4291. One of our representatives is ready to assist you and schedule your test. Payment must be received at the time of registration as testing centers do not accept payments,Same day service is available for most types of tests.

Step 2: If you scheduled online, complete the Donor Information/Registration Section and enter where you want the confidential test results sent via email. The zip code you enter will be used to determine the closest drug/alcohol testing center to you and where you will go to take your test.

Step 3: Your authorization form/donor pass will include the local testing center address and hours of operation. It will be sent to the e-mail address you provided. Take the form with you or have it available on your smart phone to provide to the testing center. No appointment necessary!

Urine or hair drug testing methods in Redwood City, CA - You choose!

Accredited Drug Testing offers different testing methods depending upon our customer's needs. With a 1 to 5-day detection period urine testing is the most common method used by employers, courts and schools. However, hair drug and alcohol testing are becoming a frequently used testing method due to a detection period of approximately 90 days.

What is the most common urine/hair drug test?

Both a 5-panel urine or 5 panel hair drug test screens for the same drugs, however, the look-back period or detection window is very different. A urine drug test provides a look back period of 1-5 days while a hair drug test provides use up to 90 days from the date the specimen was collected.

Court Ordered Drug Testing (Probation/Child Custody)

Our local drug testing Redwood City, CA centers provide drug and alcohol tests that are utilized for a wide variety of court ordered proceedings, including probation and other types of government required tests. Observed tests are available and tests results can be submitted for a wide variety of court ordered proceedings including probation hearings, child custody cases, litigation and all manner of government required tests.

Court ordered drug tests should contain detailed instructions specifying the type of test to be administered and the drugs that should be screened for. If sample collection needs to be witnessed in order to prevent potential tampering or substitution, those specifications will be stated in the court order.

DOT Drug and Alcohol Testing Services in Redwood City, CA

We also specialize in providing testing services for all DOT Modes including Trucking Industry (FMCSA), Maritime Industry (USCG), Aviation Industry (FAA), Public Transportation (FTA), Railroad Industry (FRA) and Pipeline Industry (PHMSA) in accordance with Part 40 of the US Department of Transportation Compliance Regulations. Additional DOT Services include consortium enrollment, MVR reports, Supervisor Training and policy manual development. In addition, we offer a complete DOT Compliance Program for single operators and small trucking companies.

Additional DOT Services:

  • Consortium Enrollment
  • DOT Physicals
  • Supervisor Training
  • Employer Drug Policy Development
  • MVR Reports
  • Employee Training
  • Background Checks
  • FMCSA Clearinghouse Verification/Search

Employer/Drug Free Workplace Testing in Redwood City, CA

Many companies and employers may be interested in being a drug free workplace, if so, Accredited Drug Testing specializes in providing comprehensive and cost-effective drug free workplace programs for small, medium and large companies. Organizations that utilize an employee drug testing program are commonly referred to as a Drug Free Workplace. However, many times companies do not fully qualify as a Drug Free Workplace because the drug testing program which they use does not have all of the components which make up a true Drug Free Workplace under their State specific law. Our Drug Testing Redwood City, CA locations are ready to serve your needs.

Want to open a No Fee employer account? Click Here to open your employer drug testing account today and save money!

What Are the Benefits of Being a Drug Free Workplace in Redwood City, CA?

  • Enhanced Employee Performance
  • Reduced Job-Related Accidents
  • Reduced Employee Absenteeism
  • Lower Workers Compensation Rates
  • Improved Employee Moral
  • Customer Satisfaction

On-site/Mobile Drug Testing in Redwood City, CA

Do you have at least 10 employees needing a drug or alcohol test? If so, Accredited Drug Testing can provide on-site drug testing at your place of business. On-site drug testing services is frequently used by construction sites, manufacturing facilities, job fairs. On-site drug testing is available for pre employment and random testing. Call us today at (800)221-4291 and speak to our on-site coordinator to schedule your drug testing event in Redwood City, CA.

Drug Testing Locations in Redwood City, CA

Accredited Drug Testing has drug testing locations in Redwood City, CA and the surrounding areas. Many of our drug testing centers open early and have evening hours to accommodate a person's work schedule. Our drug testing locations in Redwood City, CA have certified and trained drug testing specialists ready to serve your testing needs in a friendly, knowledgeable and confidential manner.

Drug testing purposes for employers include pre-employment, random selection, post-accident and reasonable suspicion. Testing purposes for individuals can include court ordered, probation, child custody or for any other personal reason.

Accredited Drug Testing is a nationwide drug testing company with testing centers in Redwood City, CA specializing in Drug, Alcohol, DNA testing. DOT Physicals and Background Checks.

On the road or vacation? No worries! We can schedule your test, ANYWHERE, ANYTIME!

With over 20,000 testing centers throughout the United States, Accredited Drug Testing has testing centers in all States and in most cities and towns.

Which drug testing panel is right for you?

Drug test screening groups are commonly referred to as a drug testing panel. The most common panels used are a 5 panel, 10 panel and 12 panel drug tests, (panels specify how many drugs will be screened) however customized screeningings are available as well.

What is a Drug Test?

A drug test is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, and/or oral fluid/saliva-to determine the presence or absence of specified parent drugs or their metabolites. Major applications of drug testing include detection of the presence of performance enhancing steroids in sport, employers and parole/probation officers screening for drugs prohibited by law and police officers testing for the presence and concentration of alcohol (ethanol) in the blood commonly referred to as BAC (blood alcohol content). BAC tests are typically administered via a breathalyzer while urinalysis is used for the vast majority of drug testing in sports and the workplace. Numerous other methods with varying degrees of accuracy, sensitivity (detection threshold/cutoff), and detection periods exist. A drug test may also refer to a test that provides quantitative chemical analysis of an illegal drug, typically intended to help with responsible drug use.

Does passive smoke inhalation cause a false positive for marijuana?

"Passive" smoke inhalation from being in a room with people smoking marijuana is not considered valid, as the cut-off concentrations for lab analysis are set well above that which might occur for passive inhalation.

Other abnormalities in the urine screen may indicate that results may be a false negative or that there was deliberate adulteration of the sample. For example:

  • a low creatinine lab value can indicate that a urine sample was tampered with; either the subject diluted their urine by consuming excessive water just prior to testing, or water was added to the urine sample.
  • creatinine levels are often used in conjunction with specific gravity to determine if samples have been diluted. To help avoid this problem, the testing lab may color the water in their toilet blue to prevent the sample being diluted with water from the toilet.
  • subjects may also attempt to add certain enzymes to the urine sample to affect stability, but this often changes the pH, which is also tested.

How long do drugs stay in your system?

The window of detection or often times referred to as look back period of a drug test depend on several factors. Some of the factors impacting how long a drug will stay in your system are:

  • The amount of the drug taken
  • The frequency of the drug taken
  • The type of drug taken
  • An individual's body metabolic rate and general health
  • The amount of fluids consumed since ingesting the drug
  • The amount of exercise since ingesting the drug
  • Other genetic variations that would impact an individual's response to a specific drug

Why choose Accredited Drug Testing in Redwood City, CA?

Our staff is prepared to assist you with any questions you may have in a friendly and confidential manner and providing exceptional customer service and being available when you need us for drug testing in Redwood City, CA is our #1 Priority and we look forward to serving the needs of employers and individuals who need any type of test.

(800) 221-4291

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"When You Need a Test, Choose the Best"

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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

Local Area Info: Redwood City, California

Redwood City is a city on the San Francisco Peninsula in Northern California's Bay Area, approximately 27 miles (43 km) south of San Francisco, and 24 miles (39 km) northwest of San Jose. Redwood City's history spans its earliest inhabitation by the Ohlone people to being a port for lumber and other goods. The county seat of San Mateo County in the heart of Silicon Valley, Redwood City is home to several global technology companies including Oracle, Electronic Arts, Evernote, Box, and Informatica. The city had an estimated population of 86,685 in 2017. The Port of Redwood City is the only deepwater port on San Francisco Bay south of San Francisco. Redwood City is the location of the San Mateo County Jail, for both women and men. The Hetch Hetchy water pipeline runs through Redwood City and supplies a vast majority of the surrounding area with low grain (+/? 3 grains) rated water.

According to the United States Census Bureau, the city has an area of 34.7 square miles (90 km2), of which 19.4 square miles (50 km2) is land and 15.2 square miles (39 km2) (43.91%) is water. A major watercourse draining much of Redwood City is Redwood Creek, to which several significant river deltas connect, the largest of which is Westpoint Slough.

Redwood City stretches from the San Francisco Bay towards the Santa Cruz Mountains between San Carlos to the northwest and Atherton to the southeast with Woodside to the southwest. It is divided by Highway 101 and further inland El Camino Real on the northwest/southeast axis and Woodside Road on the north-northeast/south-southwest axis. Locally, the former two are regarded as north/south and the latter east/west, as 101 and El Camino connects Redwood City to San Francisco and San Jose and Woodside Road runs from San Francisco Bay to the Santa Cruz Mountains.

Show Regional Data

Population (male): 45,509

Population (female): 41,176

Cost of Living: March 2019 cost of living index in Redwood City: 173.8 (very high, U.S. average is 100)

Ancestries: Ancestries: German (5.0%), Italian (4.3%), American (3.7%), Irish (2.8%), English (2.0%), European (1.6%).

Population Density:

Zip Codes: 94065

In August 2006, a 20-screen theater and various shops opened in a prime downtown location. The theater complex boasts restaurant and retail space at street level and a 2-level underground parking structure.

(800) 221-4291