Walnut Creek, CA Facts, Population, Income, Demographics, Economy

Population (total): Population in 2017: 69,773 (100% urban, 0% rural). >Population change since 2000: +8.5%

Population (female): 36,922

Median Age: 48.2 years

Cost of Living: March 2019 cost of living index in Walnut Creek: 153.4 (very high, U.S. average is 100)

Ancestries: Ancestries: German (6.7%), Italian (5.7%), English (5.4%), Iranian (5.0%), Irish (4.9%), European (3.6%).

Elevation: 200 feet

Land Area: 19.9 square miles.

Population Density:

Zip Codes: 94598

Median Incomes:
      Estimated median household income in 2017: $100,180 (it was $63,238 in 2000)
      Estimated per capita income in 2017: $63,790 (it was $39,875 in 2000)
      Estimated median house or condo value in 2017: $814,600 (it was $337,700 in 2000) Walnut Creek:$814,600CA:$509,400

In December 1862 a United States Post Office was established, and the community was named "Walnut Creek". The downtown street patterns laid out in 1871–1872 by pioneer Homer Shuey on a portion of one of his family's large cattle ranches are still present today.

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)

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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 Walnut Creek, CA

1981 N BROADWAY Ste 190 0.2 miles

1981 N BROADWAY Ste 190
WALNUT CREEK, CA 94596
Categories: WALNUT CREEK CA

1425 S MAIN ST 1.0 miles

1425 S MAIN ST
WALNUT CREEK, CA 94596
Categories: WALNUT CREEK CA

108 LA CASA VIA, STE 105 1.2 miles

108 LA CASA VIA, STE 105
WALNUT CREEK, CA 94598
Categories: WALNUT CREEK CA

320 LENNON LN FL 2 2.4 miles

320 LENNON LN FL 2
WALNUT CREEK, CA 94598
Categories: WALNUT CREEK CA

401 Gregory Ln, Ste 146 3.0 miles

401 Gregory Ln, Ste 146
Pleasant Hill, CA 94523
Categories: Pleasant Hill CA

609 GREGORY LN STE 100 3.0 miles

609 GREGORY LN STE 100
PLEASANT HILL, CA 94523
Categories: PLEASANT HILL CA

2090 COMMERCE AVE 4.9 miles

2090 COMMERCE AVE
CONCORD, CA 94520
Categories: CONCORD CA

2280 DIAMOND BLVD STE 520 4.9 miles

2280 DIAMOND BLVD STE 520
CONCORD, CA 94520
Categories: CONCORD CA

2231 GALAXY CT 5.0 miles

2231 GALAXY CT
CONCORD, CA 94520
Categories: CONCORD CA

2477 PACHECO ST 5.5 miles

2477 PACHECO ST
CONCORD, CA 94520
Categories: CONCORD CA

2425 East Street, Suite 6 5.5 miles

2425 East Street, Suite 6
Concord, CA 94520
Categories: Concord CA

2540 EAST ST 5.6 miles

2540 EAST ST
CONCORD, CA 94520
Categories: CONCORD CA

1805 ARNOLD DR 6.2 miles

1805 ARNOLD DR
MARTINEZ, CA 94553
Categories: MARTINEZ CA

5167 CLAYTON RD STE H 6.4 miles

5167 CLAYTON RD STE H
CONCORD, CA 94521
Categories: CONCORD CA

827 ARNOLD DR STE 70 6.9 miles

827 ARNOLD DR STE 70
MARTINEZ, CA 94553
Categories: MARTINEZ CA

200 MUIR RD Hacienda Bldg, 1st Floor 7.2 miles

200 MUIR RD Hacienda Bldg, 1st Floor
MARTINEZ, CA 94553
Categories: MARTINEZ CA

3237 ALHAMBRA AVE STE 2 7.5 miles

3237 ALHAMBRA AVE STE 2
MARTINEZ, CA 94553
Categories: MARTINEZ CA

2301 CAMINO RAMON STE 108 10.5 miles

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

6001 NORRIS CANYON RD Ste 142 10.6 miles

6001 NORRIS CANYON RD Ste 142
SAN RAMON, CA 94583
Categories: SAN RAMON CA

5601 NORRIS CANYON RD STE 140 10.6 miles

5601 NORRIS CANYON RD STE 140
SAN RAMON, CA 94583
Categories: SAN RAMON CA

2450 ASHBY AVE 11.1 miles

2450 ASHBY AVE
BERKELEY, CA 94705
Categories: BERKELEY CA

4749 SURREY LN 11.2 miles

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

1517 GRAND AVE 11.3 miles

1517 GRAND AVE
PIEDMONT, CA 94611
Categories: PIEDMONT CA

1001 PITTSBURG ANTIOCH HWY STE B 11.4 miles

1001 PITTSBURG ANTIOCH HWY STE B
PITTSBURG, CA 94565
Categories: PITTSBURG CA

3774 RAILROAD AVE STE C 11.5 miles

3774 RAILROAD AVE STE C
PITTSBURG, CA 94565
Categories: PITTSBURG CA

4069 PIEDMONT AVE STE 910 11.6 miles

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

3701 BROADWAY FL 5 12.0 miles

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

3300 WEBSTER ST, STE 1110 12.2 miles

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

350 HAWTHORNE AVE 12.3 miles

350 HAWTHORNE AVE
OAKLAND, CA 94609
Categories: OAKLAND CA

538 STONE RD STE G 12.4 miles

538 STONE RD STE G
BENICIA, CA 94510
Categories: BENICIA CA

1901 RAILROAD AVE STE B 12.5 miles

1901 RAILROAD AVE STE B
PITTSBURG, CA 94565
Categories: PITTSBURG CA

1251 CALIFORNIA AVE STE 600 12.9 miles

1251 CALIFORNIA AVE STE 600
PITTSBURG, CA 94565
Categories: PITTSBURG CA

2505 BATAAN ST STE O 12.9 miles

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

2850 7TH ST STE 100 12.9 miles

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

1700 BROADWAY STE 310 13.1 miles

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

6001 SHELLMOUND ST STE 850 13.3 miles

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

7817 OAKPORT ST 13.4 miles

7817 OAKPORT ST
OAKLAND, CA 94621
Categories: OAKLAND CA

7901 OAKPORT ST STE 4950 2ND FLOOR 13.4 miles

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

2339 BUCHANAN RD 13.6 miles

2339 BUCHANAN RD
ANTIOCH, CA 94509
Categories: ANTIOCH CA

500 Alfred Nobel Drive, Suite 115 13.7 miles

500 Alfred Nobel Drive, Suite 115
Hercules, CA 94547
Categories: Hercules CA

401 ROLAND WAY STE 205 13.7 miles

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

384 EMBARCADERO W 13.8 miles

384 EMBARCADERO W
OAKLAND, CA 94607
Categories: OAKLAND CA

2042 Columbus Pkwy, 13.8 miles

2042 Columbus Pkwy,
Benicia, CA 94510
Categories: Benicia CA

1100 ROSE DR ste 140 13.9 miles

1100 ROSE DR ste 140
BENICIA, CA 94510
Categories: BENICIA CA

520 6TH ST 13.9 miles

520 6TH ST
RODEO, CA 94572
Categories: RODEO CA

2421 ENCINAL AVE STE A 13.9 miles

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

3400 DELTA FAIR BLVD 13.9 miles

3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Categories: ANTIOCH CA

13939 E 14TH ST 13.9 miles

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

2111 Whitehall Place, Suite D 14.5 miles

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

20400 Lake Chabot Rd Ste 101, 14.6 miles

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

3726 BARRETT AVE 14.8 miles

3726 BARRETT AVE
RICHMOND, CA 94805
Categories: RICHMOND CA

1555 DOOLITTLE DR STE 180 15.0 miles

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

2587 MERCED ST 15.1 miles

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

2970 HILLTOP MALL RD STE 203 15.3 miles

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

2000 VALE RD 15.3 miles

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

2425 CHURCH LN 15.4 miles

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

120 BROADWAY STE 23 15.4 miles

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

7667 AMADOR VALLEY BLVD 15.5 miles

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

3901 LONE TREE WAY 15.8 miles

3901 LONE TREE WAY
ANTIOCH, CA 94509
Categories: ANTIOCH CA

901 NEVIN AVE BLDG B FLOOR 1 16.3 miles

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

5720 Stoneridge Mall Road, Suite 110 16.5 miles

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

24326 MISSION BLVD STE 3 16.7 miles

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

7601 STONERIDGE DR FL 1 16.8 miles

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

3450 HILLCREST AVE 17.1 miles

3450 HILLCREST AVE
ANTIOCH, CA 94531
Categories: ANTIOCH CA

243 GEORGIA ST STE B 17.1 miles

243 GEORGIA ST STE B
VALLEJO, CA 94590
Categories: VALLEJO CA

4847 HOPYARD RD STE 4-424 17.2 miles

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

4501 SAND CREEK RD 17.4 miles

4501 SAND CREEK RD
ANTIOCH, CA 94531
Categories: ANTIOCH CA

4000 DUBLIN BLVD STE 150 17.5 miles

4000 DUBLIN BLVD STE 150
DUBLIN, CA 94568
Categories: DUBLIN CA

17 Tennessee St 17.7 miles

17 Tennessee St
Vallejo, CA 94590
Categories: Vallejo CA

5635 W LAS POSITAS BLVD 17.9 miles

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

3128 SANTA RITA RD 18.1 miles

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

300 HOSPITAL DR 18.2 miles

300 HOSPITAL DR
VALLEJO, CA 94589
Categories: VALLEJO CA

975 SERENO DR 18.3 miles

975 SERENO DR
VALLEJO, CA 94589
Categories: VALLEJO CA

2224 DELUCCHI DR 18.6 miles

2224 DELUCCHI DR
PLEASANTON, CA 94588
Categories: PLEASANTON CA

2324 SANTA RITA RD STE 4 18.6 miles

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

27200 CALAROGA AVE 18.9 miles

27200 CALAROGA AVE
HAYWARD, CA 94545
Categories: HAYWARD CA

26250 INDUSTRIAL BLVD STE 32 19.0 miles

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

2400 BALFOUR RD Ste 230 19.3 miles

2400 BALFOUR RD Ste 230
BRENTWOOD, CA 94513
Categories: BRENTWOOD CA

3200 BUSCH RD 19.4 miles

3200 BUSCH RD
PLEASANTON, CA 94566
Categories: PLEASANTON CA

49 DRUMM ST 19.7 miles

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

26 CALIFORNIA ST 19.7 miles

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

24 WILLIE MAYS PLZ 19.8 miles

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

2 TERMINAL 19.8 miles

2 TERMINAL
SAN FRANCISCO, CA 94128
Categories: SAN FRANCISCO CA

3901 WALNUT BLVD STE A-2 19.9 miles

3901 WALNUT BLVD STE A-2
BRENTWOOD, CA 94513
Categories: BRENTWOOD CA

1181 Central Boulevard, Suite C 20.0 miles

1181 Central Boulevard, Suite C
Brentwood, CA 94513
Categories: Brentwood CA

580 MARKET ST STE 100 20.1 miles

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

29000 HESPERIAN BLVD 20.1 miles

29000 HESPERIAN BLVD
HAYWARD, CA 94545
Categories: HAYWARD CA

845 JACKSON ST 20.3 miles

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

2 CONNECTICUT ST STE 1 20.6 miles

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

3555 WHIPPLE RD 20.8 miles

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

900 HYDE ST 20.8 miles

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

SFIA Terminal 2 21.1 miles

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

601 VAN NESS AVE Ste 2008 21.2 miles

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

On-site only 21.2 miles

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

33077 ALVARADO NILES RD 21.7 miles

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

Castro & Duboce St, South Tower Ste 160A 21.7 miles

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

33560 ALVARADO NILES RD 21.8 miles

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

3000 LAS POSITAS RD 22.0 miles

3000 LAS POSITAS RD
LIVERMORE, CA 94551
Categories: LIVERMORE CA

2300 SUTTER ST STE 102 22.0 miles

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

2201 Post St, 22.0 miles

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

1111 E STANLEY BLVD 22.0 miles

1111 E STANLEY BLVD
LIVERMORE, CA 94550
Categories: LIVERMORE CA

1133 E STANLEY BLVD Ste 151 22.1 miles

1133 E STANLEY BLVD Ste 151
LIVERMORE, CA 94550
Categories: LIVERMORE CA

3555 CESAR CHAVEZ 22.3 miles

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

2198 15th St, 22.3 miles

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

505 PARNASSUS AVE Ste 896 23.7 miles

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

556 Mowry Avenue, Suite 103 24.0 miles

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

1411 Oliver Road, Suite 130 24.3 miles

1411 Oliver Road, Suite 130
Fairfield, CA 94534
Categories: Fairfield CA

25 BELLAM BLVD STE 101 24.4 miles

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

2000 MOWRY AVE 24.5 miles

2000 MOWRY AVE
FREMONT, CA 94538
Categories: FREMONT CA

2147 MOWRY AVE STE C1 24.5 miles

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

5570 STOCKTON LOOP 24.6 miles

5570 STOCKTON LOOP
LIVERMORE, CA 94550
Categories: LIVERMORE CA

101 CASA BUENA DR 24.7 miles

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

35500 DUMBARTON CT 24.8 miles

35500 DUMBARTON CT
NEWARK, CA 94560
Categories: NEWARK CA

2 FIFER AVE STE 130 24.9 miles

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

3161 WALNUT AVE 25.0 miles

3161 WALNUT AVE
FREMONT, CA 94538
Categories: FREMONT 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 Walnut Creek, CA, Accredited Drug Testing has many drug testing locations in Walnut Creek, 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 Walnut Creek, 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"

Guidelines for Scheduling a Drug Test in Walnut Creek, CA

Steps for Scheduling Either Online or via Phone: Simplified Process

Step 1: Choose and purchase your test online or by contacting our local center at (800)-221-4291. Our representatives are available to guide you through the scheduling process. Please ensure payment is completed at registration, as testing sites do not process payments. Same-day service is possible for numerous tests.

Step 2: For online scheduling, fill out the Donor Information/Registration Section and designate an email for the confidential results. The zip code provided will help identify the closest drug/alcohol testing facility for your appointment.

Step 3: Your authorization form/donor pass—featuring the address and operating hours of the testing center—will be sent to your email. Present the form either physically or digitally when you visit the testing facility. No appointment needed!

Select Between Urine or Hair Drug Testing Methods in Walnut Creek, CA

Accredited Drug Testing provides various testing options to meet different customer needs. The urine test, with a 1 to 5-day detection timeframe, is commonly preferred by employers, courts, and schools. Conversely, hair testing is gaining popularity due to its longer detection period of up to 90 days.

Preferred Urine and Hair Drug Tests

Both the 5-panel urine and 5-panel hair drug tests screen identical substances but vary in their detection windows. While a urine test observes usage within the past 1-5 days, a hair test provides details on use up to 90 days from the collection date.

Court Mandated Drug Testing (Probation/Child Custody)

In Walnut Creek, CA, our local drug testing centers offer various drug and alcohol tests for court-ordered purposes, including probation and governmental requirements. These tests can be observed, with results applicable to probation hearings, child custody disputes, litigation, and other government-related situations.

Instructions for court-ordered drug tests usually specify the test type and substances to be screened. If witness collection is necessary to prevent tampering, this will be clearly indicated in the order.

DOT Drug and Alcohol Testing Services in Walnut Creek, CA

Our specialization includes testing services across all DOT sectors such as the Trucking (FMCSA), Maritime (USCG), Aviation (FAA), Public Transport (FTA), Railroad (FRA), and Pipeline (PHMSA) industries. Additional DOT services encompass consortium membership, MVR assessments, supervisor training, and policy manual formulation. A comprehensive DOT Compliance Program is also available for single operators and small trucking entities.

Additional DOT Services Offered:

  • Consortium Participation
  • DOT Medical Examinations
  • Supervisor Coaching
  • Development of Employer Drug Policies
  • MVR Documentation
  • Employee Education
  • Background Screenings
  • FMCSA Clearinghouse Search/Verification

Creating a Drug-Free Workplace in Walnut Creek, CA

For organizations aiming for a drug-free work environment, Accredited Drug Testing delivers extensive and cost-efficient workplace programs. However, some companies may not fully meet "Drug Free Workplace" standards if their testing program lacks required components under locale-specific law. Our Walnut Creek, CA drug testing centers are ready to meet your requirements.

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

Advantages of a Drug-Free Workplace in Walnut Creek, CA:

  • Improved Employee Efficiency
  • Lower Incident Rates
  • Decreased Employee Absences
  • Reduced Workers' Compensation Costs
  • Boosted Employee Morale
  • Enhanced Customer Satisfaction

On-site/Mobile Drug Testing in Walnut Creek, CA

Have a team of 10 or more needing drug or alcohol screening? Accredited Drug Testing provides on-site services directly at your business location. These services are often sought by construction, manufacturing, and job fair hosts, offering both pre-employment and random testing. Reach us at (800)221-4291 for coordination of your testing event in Walnut Creek, CA.

Drug Testing Centers in Walnut Creek, CA

Accredited Drug Testing hosts numerous centers in and around Walnut Creek, CA. With flexible hours to suit varying schedules, our locations are managed by certified personnel, ensuring a professional and confidential experience.

Tests often align with employer needs such as pre-employment, random checks, post-incident assessments, or suspicion-based evaluations. For individuals, purposes might include court orders, probation, custody matters, or other personal reasons.

Accredited Drug Testing stands as a nationwide provider with facilities not only in Walnut Creek, CA but across numerous states, offering services that extend to Drug, Alcohol, DNA testing, DOT Physicals, and Background Checks.

On the go? Don't worry—we can arrange testing at your convenience, anytime, anywhere!

With more than 20,000 centers nationwide, Accredited Drug Testing is available in all states as well as most city and town areas.

Choosing the Right Drug Testing Panel

Drug test panels are classifications based on screening scope. Common choices include the 5-panel, 10-panel, and 12-panel tests (indicating the number of drugs tested), though tailored testing is offered.

Understanding Drug Testing

A drug test involves examining a biological sample—urine, hair, blood, breath, sweat, or saliva—to detect specific drugs or their byproducts. These tests serve critical roles in sports, employment, legal monitoring, and law enforcement. Various methods exist, each with distinct efficiency, sensitivity, and detection windows. Some tests quantify illicit drug levels to support informed consumption.

Impact of Passive Marijuana Smoke on Testing

"Passive" marijuana smoke exposure, such as being in a room with smokers, is not regarded as resulting in false positives, as lab cutoffs exceed levels that passive inhalation may produce.

Urine screening abnormalities might suggest false negatives or tampering. For instance:

  • Low creatinine can indicate diluted samples, either by water consumption pre-test or direct addition post-collection.
  • Creatinine levels, alongside specific gravity measures, help identify tampered samples. Test labs sometimes tint toilet water to curb direct dilution.
  • Some may introduce enzymes to alter sample stability, but this may affect pH, which is also examined.

Drug Retention in Your System

How long drugs remain detectable in your system depends on several factors, including:

  • Drug quantity consumed
  • Consumption frequency
  • Drug type
  • Individual metabolic rate and overall health
  • Fluid intake post-consumption
  • Exercise post-intake
  • Genetic factors influencing drug reactions

Why Pick Accredited Drug Testing in Walnut Creek, CA?

Our team is here to address any concerns with professionalism and discretion. Our top priority is outstanding customer service, catering to the drug testing needs of both employers and individuals in Walnut Creek, CA. We look forward to serving you.

(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

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Local Area Info: Walnut Creek, California

Walnut Creek is a city in Contra Costa County, California, United States, located in the East Bay region of the San Francisco Bay Area, about 16 miles (26 kilometres) east of the city of Oakland. With a total estimated population of 69,122, Walnut Creek serves as a hub for its neighboring cities because of its location at the junction of the highways from Sacramento and San Jose (I-680) and San Francisco/Oakland (SR-24) and its accessibility by BART. Its active downtown neighborhood features hundred-year-old buildings and extensive high-end retail establishments, restaurants and entertainment venues.

There are three bands of Bay Miwok Indians associated with early Walnut Creek: the Saclan, whose territory extended through the hills east of present-day Oakland, Rossmoor, Lafayette, Moraga and Walnut Creek; the Volvon (also spelled Bolbon, Wolwon and Zuicun) near Mt. Diablo; and the Tactan located on the San Ramon Creek in Danville and Walnut Creek.

Today's Walnut Creek is located within the earlier site of four Mexican land grants. One of these land grants – measuring 18,000 acres (73 km2) – belonged to Juana Sanchez de Pacheco, who eventually passed the land down to her two grandsons. Ygnacio Sibrian, one of the grandsons, created the first roofed home in the valley in about 1850. The grant was called Rancho Arroyo de Las Nueces y Bolbones, named after the principal waterway, Arroyo de las Nueces (Walnut Creek), as well as for the local group of indigenous Americans (Bolbones). The Arroyo de las Nueces was named for the evidence of the native species of walnut tree, the California Walnut.

Show Regional Data

Population (total): Population in 2017: 69,773 (100% urban, 0% rural). >Population change since 2000: +8.5%

Population (female): 36,922

Median Age: 48.2 years

Cost of Living: March 2019 cost of living index in Walnut Creek: 153.4 (very high, U.S. average is 100)

Ancestries: Ancestries: German (6.7%), Italian (5.7%), English (5.4%), Iranian (5.0%), Irish (4.9%), European (3.6%).

Elevation: 200 feet

Land Area: 19.9 square miles.

Population Density:

Zip Codes: 94598

Median Incomes:
      Estimated median household income in 2017: $100,180 (it was $63,238 in 2000)
      Estimated per capita income in 2017: $63,790 (it was $39,875 in 2000)
      Estimated median house or condo value in 2017: $814,600 (it was $337,700 in 2000) Walnut Creek:$814,600CA:$509,400

In December 1862 a United States Post Office was established, and the community was named "Walnut Creek". The downtown street patterns laid out in 1871–1872 by pioneer Homer Shuey on a portion of one of his family's large cattle ranches are still present today.

(800) 221-4291