Drug Testing Near Me El Sobrante, CA
If you need a Drug or Alcohol Test in Near Me El Sobrante, CA , Accredited Drug Testing has many drug testing locations in Near Me El Sobrante, 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 Near Me El Sobrante, 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.
2970 HILLTOP MALL RD STE 203 1.9 miles
RICHMOND, CA 94806
4749 SURREY LN 2.3 miles
EL SOBRANTE, CA 94803
2425 CHURCH LN 2.7 miles
SAN PABLO, CA 94806
2000 VALE RD 2.9 miles
SAN PABLO, CA 94806
500 Alfred Nobel Drive, Suite 115 3.0 miles
Hercules, CA 94547
3726 BARRETT AVE 3.5 miles
RICHMOND, CA 94805
520 6TH ST 3.9 miles
RODEO, CA 94572
120 BROADWAY STE 23 4.1 miles
RICHMOND, CA 94804
901 NEVIN AVE BLDG B FLOOR 1 4.5 miles
RICHMOND, CA 94801
2505 BATAAN ST STE O 7.1 miles
OAKLAND, CA 94607
2850 7TH ST STE 100 8.5 miles
BERKELEY, CA 94710
2450 ASHBY AVE 8.6 miles
BERKELEY, CA 94705
200 MUIR RD Hacienda Bldg, 1st Floor 8.7 miles
MARTINEZ, CA 94553
243 GEORGIA ST STE B 8.8 miles
VALLEJO, CA 94590
2042 Columbus Pkwy, 9.1 miles
Benicia, CA 94510
3237 ALHAMBRA AVE STE 2 9.1 miles
MARTINEZ, CA 94553
1100 ROSE DR ste 140 9.2 miles
BENICIA, CA 94510
17 Tennessee St 9.3 miles
Vallejo, CA 94590
6001 SHELLMOUND ST STE 850 9.5 miles
EMERYVILLE, CA 94608
827 ARNOLD DR STE 70 9.9 miles
MARTINEZ, CA 94553
4069 PIEDMONT AVE STE 910 10.7 miles
OAKLAND, CA 94611
3701 BROADWAY FL 5 10.7 miles
OAKLAND, CA 94611
1805 ARNOLD DR 10.8 miles
MARTINEZ, CA 94553
975 SERENO DR 10.8 miles
VALLEJO, CA 94589
3300 WEBSTER ST, STE 1110 10.9 miles
OAKLAND, CA 94609
350 HAWTHORNE AVE 10.9 miles
OAKLAND, CA 94609
1517 GRAND AVE 11.0 miles
PIEDMONT, CA 94611
300 HOSPITAL DR 11.1 miles
VALLEJO, CA 94589
25 BELLAM BLVD STE 101 11.7 miles
SAN RAFAEL, CA 94901
538 STONE RD STE G 11.7 miles
BENICIA, CA 94510
1700 BROADWAY STE 310 11.9 miles
OAKLAND, CA 94612
609 GREGORY LN STE 100 11.9 miles
PLEASANT HILL, CA 94523
401 Gregory Ln, Ste 146 12.2 miles
Pleasant Hill, CA 94523
2 FIFER AVE STE 130 12.5 miles
CORTE MADERA, CA 94925
101 CASA BUENA DR 12.6 miles
CORTE MADERA, CA 94925
384 EMBARCADERO W 12.6 miles
OAKLAND, CA 94607
2280 DIAMOND BLVD STE 520 12.8 miles
CONCORD, CA 94520
1220 S ELISEO DR 13.3 miles
GREENBRAE, CA 94904
1300 South Eliseo Drive, Suite 101 13.3 miles
Greenbrae, CA 94904
1321 S ELISEO DR 1ST FL 13.3 miles
GREENBRAE, CA 94904
2231 GALAXY CT 13.5 miles
CONCORD, CA 94520
250 BON AIR RD 13.5 miles
GREENBRAE, CA 94904
2090 COMMERCE AVE 13.5 miles
CONCORD, CA 94520
1981 N BROADWAY Ste 190 13.6 miles
WALNUT CREEK, CA 94596
49 DRUMM ST 13.8 miles
SAN FRANCISCO, CA 94111
26 CALIFORNIA ST 13.8 miles
SAN FRANCISCO, CA 94111
845 JACKSON ST 14.0 miles
SAN FRANCISCO, CA 94133
1125 SIR FRANCIS DRAKE BLVD STE N 14.1 miles
KENTFIELD, CA 94904
1425 S MAIN ST 14.2 miles
WALNUT CREEK, CA 94596
2540 EAST ST 14.2 miles
CONCORD, CA 94520
2425 East Street, Suite 6 14.2 miles
Concord, CA 94520
580 MARKET ST STE 100 14.2 miles
SAN FRANCISCO, CA 94104
2477 PACHECO ST 14.4 miles
CONCORD, CA 94520
108 LA CASA VIA, STE 105 14.4 miles
WALNUT CREEK, CA 94598
99 MONTECILLO RD MOB 1 14.5 miles
SAN RAFAEL, CA 94903
900 HYDE ST 14.6 miles
SAN FRANCISCO, CA 94109
24 WILLIE MAYS PLZ 14.6 miles
SAN FRANCISCO, CA 94107
320 LENNON LN FL 2 14.8 miles
WALNUT CREEK, CA 94598
2421 ENCINAL AVE STE A 15.1 miles
ALAMEDA, CA 94501
601 VAN NESS AVE Ste 2008 15.2 miles
SAN FRANCISCO, CA 94102
2111 Whitehall Place, Suite D 15.2 miles
Alameda, CA 94501
2300 SUTTER ST STE 102 15.4 miles
SAN FRANCISCO, CA 94115
2201 Post St, 15.4 miles
San Francisco, CA 94115
2 CONNECTICUT ST STE 1 15.6 miles
SAN FRANCISCO, CA 94107
Castro & Duboce St, South Tower Ste 160A 15.9 miles
SAN FRANCISCO, CA 94114
2198 15th St, 16.4 miles
San Francisco, CA 94114
180 ROWLAND WAY 16.6 miles
NOVATO, CA 94945
7817 OAKPORT ST 16.9 miles
OAKLAND, CA 94621
7901 OAKPORT ST STE 4950 2ND FLOOR 17.0 miles
OAKLAND, CA 94621
401 ROLAND WAY STE 205 17.0 miles
OAKLAND, CA 94621
3555 CESAR CHAVEZ 17.2 miles
SAN FRANCISCO, CA 94110
505 PARNASSUS AVE Ste 896 17.3 miles
SAN FRANCISCO, CA 94143
SFIA Terminal 2 17.7 miles
San Francisco, CA 94125
On-site only 17.8 miles
San Francisco, CA 94124
5167 CLAYTON RD STE H 18.0 miles
CONCORD, CA 94521
1555 DOOLITTLE DR STE 180 19.3 miles
SAN LEANDRO, CA 94577
13939 E 14TH ST 20.1 miles
SAN LEANDRO, CA 94578
2587 MERCED ST 20.1 miles
SAN LEANDRO, CA 94577
1001 PITTSBURG ANTIOCH HWY STE B 21.3 miles
PITTSBURG, CA 94565
3774 RAILROAD AVE STE C 21.9 miles
PITTSBURG, CA 94565
1901 RAILROAD AVE STE B 22.4 miles
PITTSBURG, CA 94565
20400 Lake Chabot Rd Ste 101, 22.5 miles
Castro Valley, CA 94546
1900 SULLIVAN AVE 22.5 miles
DALY CITY, CA 94015
2301 CAMINO RAMON STE 108 22.7 miles
SAN RAMON, CA 94583
6001 NORRIS CANYON RD Ste 142 22.9 miles
SAN RAMON, CA 94583
5601 NORRIS CANYON RD STE 140 22.9 miles
SAN RAMON, CA 94583
1411 Oliver Road, Suite 130 23.0 miles
Fairfield, CA 94534
1251 CALIFORNIA AVE STE 600 23.2 miles
PITTSBURG, CA 94565
3 S LINDEN AVE 23.3 miles
SOUTH SAN FRANCISCO, CA 94080
347 ANDRIEUX ST 23.4 miles
SONOMA, CA 95476
International Terminal Level 3 A Side 23.5 miles
SAN FRANCISCO, CA 94128
3900 LAKEVILLE HWY 23.6 miles
PETALUMA, CA 94954
3285 CLAREMONT WAY FL 2 23.8 miles
NAPA, CA 94558
3260 Beard Road, Suite A 23.9 miles
Napa, CA 94558
1000 TRANCAS ST 23.9 miles
NAPA, CA 94558
3435 VALLE VERDE DR STE B 24.2 miles
NAPA, CA 94558
2470 HILBORN RD STE 110 24.4 miles
FAIRFIELD, CA 94534
2339 BUCHANAN RD 24.6 miles
ANTIOCH, CA 94509
24326 MISSION BLVD STE 3 24.7 miles
HAYWARD, CA 94544
3400 DELTA FAIR BLVD 24.8 miles
ANTIOCH, CA 94509
How to schedule a drug test in Near Me El Sobrante, 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 Near Me El Sobrante, 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.
- Amphetamines
- Cocaine
- Marijuana
- Opiates
- PCP
Court Ordered Drug Testing (Probation/Child Custody)
Our local drug testing Near Me El Sobrante, 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 Near Me El Sobrante, 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
The Opioid Overdose Crisis
Every day, more than 130 people in the United States die after overdosing on opioids. The misuse of and addiction to opioids,including prescription pain relievers, heroin, and synthetic opioids such as fentanyl,is a serious national crisis that affects public health as well as social and economic welfare. The Centers for Disease Control and Prevention estimates that the total "economic burden" of prescription opioid misuse alone in the United States is $78.5 billion a year, including the costs of healthcare, lost productivity, addiction treatment, and criminal justice involvement.
- Roughly 21 to 29 percent of patients prescribed opioids for chronic pain misuse them.
- Between 8 and 12 percent develop an opioid use disorder.
- An estimated 4 to 6 percent who misuse prescription opioids transition to heroin.
- About 80 percent of people who use heroin first misused prescription opioids.
- Opioid overdoses increased 30 percent from July 2016 through September 2017 in 52 areas in 45 states.
- The Midwestern region saw opioid overdoses increase 70 percent from July 2016 through September 2017.
- Opioid overdoses in large cities increase by 54 percent in 16 states.
In the late 1990s, pharmaceutical companies reassured the medical community that patients would not become addicted to prescription opioid pain relievers, and healthcare providers began to prescribe them at greater rates. This subsequently led to widespread diversion and misuse of these medications before it became clear that these medications could indeed be highly addictive.3,4 Opioid overdose rates began to increase. In 2017, more than 47,000 Americans died as a result of an opioid overdose, including prescription opioids, heroin, and illicitly manufactured fentanyl, a powerful synthetic opioid.1That same year, an estimated 1.7 million people in the United States suffered from substance use disorders related to prescription opioid pain relievers, and 652,000 suffered from a heroin use disorder (not mutually exclusive).
Employer/Drug Free Workplace Testing in Near Me El Sobrante, 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 Near Me El Sobrante, 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 Near Me El Sobrante, 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 Near Me El Sobrante, 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 Near Me El Sobrante, CA .
Drug Testing Locations in Near Me El Sobrante, CA
Accredited Drug Testing has drug testing locations in Near Me El Sobrante, 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 Near Me El Sobrante, 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 Near Me El Sobrante, 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 screening can be analyzed for drugs such as opiates, bath salts, synthetic cannabinoids and a wide range of prescription drugs.
Customized Drug Testing Near Me El Sobrante, CA
Accredited Drug Testing in Near Me El Sobrante, CA also provides customized drug testing for synthetic marijuana, Ketamine, spice, kratom, bath salts and various opioids including Fentanyl, Oxycodone, Vicodin, Percocet, and others. Prescription drugs can be screened including Adderall, Ritalin, and Suboxone with levels reflecting usage.
Additional customized Drug Testing panels available include
- Narcotics
- Meperidine
- Tramadol
- Fentanyl
- Meprobamate
- Butorphanol
- Ketamine
- Nalbuphine, Naloxone, Naltrexone and/or Metabolite
- Pentazocine
- Antidepressants
- Amitriptyline
- Nortriptyline
- Fluoxetine and/or Metabolite
- Sertraline
- Antihistamines
- Chlorpheniramine
- Diphenhydramine
- Doxylamine
- Pheniramine
- Brompheniramine
- Stimulants
- Stimulants Diethylpropion
- Ephedrine
- Methylphenidate
- Phenmetrazine
- Phendimetrazine
- Phentermine
- Phenylpropanolamine
- Pseudoephedrine
- Alcohol (8-hour lookback)
- ETG Alcohol (80-hour look back)
- Other Drug(s)
- Zolpidem
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 (such as cannabis, cocaine, methamphetamine, and heroin) 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 Near Me El Sobrante, 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 Near Me El Sobrante, CA is our #1 Priority and we look forward to serving the needs of employers and individuals who need any type of test.
Don't see a location near you? Call us (800) 221-4291)
"When you need a test, choose the best!"
Alcohol Testing El Sobrante, 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
- National Institute on Drug Abuse (NIDA)
Provides comprehensive information on drug testing and its role in substance use disorder treatment.
- FDA: Drug Testing
Explains the FDA's role and regulations concerning drug testing for consumers.
- PDR.net
Provides detailed drug information and safety updates through a mobile-friendly platform.
- BeSafeRx - FDA
Resource by the FDA to help consumers identify and choose safe online pharmacies.
- SAMHSA: Drug Testing Resources for the Workplace
Resources and guidelines for drug testing in the workplace.
- Drugs.com
Provides drug information, side effects, and interactions for consumers and professionals.
- Drug Abuse Screening Test (DAST)
Online version of the DAST to help individuals assess whether they have a drug problem.
- Merck Manuals
Consumer-friendly medical resource providing comprehensive information on a wide array of health topics, including drug testing.
- SAMHSA Store
Provides access to resources and publications on substance use prevention and treatment.
- National Association of Boards of Pharmacy (NABP)
Information on state boards of pharmacy and regulations, including those related to drug testing.
- CDC: Workplace Health Promotion
CDC's resources on substance use and drug testing in the workplace.
- Mayo Clinic: Drug Testing
General information about the procedures and types of drug tests.
- MedlinePlus: Drug Testing
Offers information about various drug tests and their uses in medical diagnosis and treatment.
- University of Rochester Medical Center Health Encyclopedia
Provides a detailed entry on drug testing, including how tests are conducted and what they detect.
- World Health Organization (WHO)
International guidelines and information on public health, including substance abuse and drug testing.
- Healthline: Drug Testing
Consumer health site offering information on how drug tests work and what they look for.
- WebMD: Drug Testing
Provides a patient-oriented overview of drug testing and its purposes.
- National Center for Biotechnology Information (NCBI)
Provides a vast database of scientific studies, including research on drug testing and its effectiveness.
AI Overview
Local Drug Testing: An Essential Guide
Local drug testing plays a pivotal role in maintaining safe and productive environments across a variety of sectors, including workplaces, schools, and sporting events. It involves analyzing biological samples to detect the presence of drugs and is crucial for enforcing drug-free policies. This guide provides consumers with comprehensive information about the importance, methods, and benefits of local drug testing.
Importance of Local Drug Testing
Drug testing at a local level helps organizations comply with legal requirements, supports public safety, and promotes health within communities. It is a deterrent against the use and abuse of drugs, providing a basis for intervention and support when needed.
Common Methods of Local Drug Testing
- Urine Testing: The most common method due to its cost-effectiveness and the ability to detect a wide range of drugs over a considerable period.
- Saliva Testing: Gaining popularity for its non-invasive nature and the ability to conduct tests easily on-site with immediate results.
- Hair Follicle Testing: Provides a longer detection window, up to 90 days, making it effective for identifying habitual drug use.
- Blood Testing: Offers highly accurate results but is less commonly used due to its invasive nature and higher cost.
Choosing a Local Drug Testing Provider
- Accreditation: Ensure the provider is accredited by relevant health and safety regulatory bodies to guarantee high standards in testing.
- Types of Tests Offered: Consider the range of drug testing services offered to ensure they meet specific needs, whether for employment screening, legal compliance, or personal reasons.
- Confidentiality and Privacy: The provider should have strict protocols to protect the privacy and confidentiality of individuals undergoing drug testing.
Benefits of Local Drug Testing
Implementing drug testing locally offers numerous benefits:
- Safety: Reduces the risks associated with drug-related accidents in the workplace and public spaces.
- Compliance: Helps organizations adhere to industry regulations and legal standards.
- Health and Prevention: Promotes a healthier environment and provides early detection, which is crucial for effective drug prevention and treatment strategies.
Local drug testing is an invaluable resource for ensuring compliance with health and safety standards, enhancing workplace productivity, and fostering community health. By understanding the options and selecting a reputable provider, organizations and individuals can effectively utilize drug testing to meet their specific needs.
Were you looking, instead, for:
Local Area Info: El Sobrante, California
El Sobrante (Spanish for "the leftovers", "surplus", or "remaining land"; Spanish: [el so.??ran.te]) is a census-designated place (CDP) in Contra Costa County, California, United States. The population was 12,669 at the 2010 census.
El Sobrante is unincorporated and lies within Contra Costa County. Main roads include San Pablo Dam Road (a major road running from Richmond and San Pablo, through El Sobrante, past EBMUD's San Pablo Reservoir), Valley View Road and Appian Way. San Pablo Dam Road and Appian Way both connect to Interstate 80 to the west.
Between 5000 and 1000 BC, an indigenous tribe of people called the Huichin, an Ohlone people, came to the East Bay, including El Sobrante. One of the Huichin villages was located where the El Sobrante Library now stands. The Huichin left a now-buried shell mound beside San Pablo Creek.