Drug and alcohol testing near Diamond Bar

Diamond Bar is a hillside city at the eastern edge of Los Angeles County, near the meeting point of the CA-57 and CA-60. It is a long way from the Westside, and we will say so plainly. We do not have an office in Diamond Bar. What we offer is low cost testing, real people, and a path to more help.

Getting to us from Diamond Bar

Most people take the CA-60 west to the I-10 west, then continue to the Westside. Outside rush hour, plan on roughly 50 to 70 minutes, and much longer at peak times. The CA-57 and CA-60 interchange is often congested, so leave extra time. Midday appointments are usually the easiest to keep.

Diamond Bar and the courts

Diamond Bar contracts with the Los Angeles County Sheriff’s Department. Cases from this part of the county are often handled in the Superior Court’s East District, which includes the Pomona and West Covina courthouses. Check your paperwork for your courthouse. If testing is ordered, we offer chain of custody documentation when needed.

Families in Diamond Bar

Diamond Bar is split between the Walnut Valley Unified and Pomona Unified school districts, and Mt. San Antonio College is next door in Walnut. Parents of teens and college students often call us to understand their options before they say anything at home.

Testing options

There is no one size plan. People from Diamond Bar usually start with one of these:

• One-time testing. A single scheduled test when you need an answer now.
• Random testing program. You are notified when to report, so tests cannot be planned around. See our random drug testing program.
• Ongoing monitoring. A coordinator who knows you, a schedule that can change as things improve, and results shared only with people you authorize in writing. Learn about drug and alcohol monitoring.
• Court ordered testing. Court ordered testing with chain of custody documentation when it is needed.

Tests include a 12 panel urine drug test that covers common substances such as opioids, stimulants, benzodiazepines and cannabis, fentanyl testing, an EtG alcohol test, a breathalyzer, and saliva testing on request. Positives that will be acted on are confirmed by partner laboratories. Bring a photo ID to intake. Observed collection is used when a court, program or agreement requires it. Compare everything on our services page.

Mobile testing

Mobile testing at a home or workplace is offered for an additional fee. Diamond Bar is a long way from our Westside office, so mobile testing may be available in your area; call to ask before you plan around it. Outside office hours, testing can also be arranged at other Blackburn locations on the Westside.

Who we help

Testing from Diamond Bar usually involves one of these situations:

• Families of adults and teens who want clear answers without becoming the police at home.
• People with court, probation, diversion or attorney requirements. Attorneys can start on our page for attorneys.
• Licensed professionals under monitoring, such as doctors, nurses, lawyers and pilots.
• Treatment programs and clinicians who want objective results between sessions. See our page for clinicians.

More support when you need it

Diamond Bar families who reach out usually want two things: a clear answer and a plan for what follows. When more help makes sense, Blackburn has it.

• Therapy and psychiatry

  Assessment, therapy and psychiatric care at Blackburn Clinical Services.

  Visit Blackburn Clinical Services

• Sober living

  Structured sober living and sober apartments on the Westside through Blackburn Recovery Services.

  Visit Blackburn Recovery Services

• Mentoring

  One-on-one mentoring for accountability and structure, at work, at home and in daily life.

  Visit Blackburn Mentoring

• Scholarship help

  Treatment scholarships for people who need care and cannot cover the cost, through The Blackburn Foundation.

  Visit The Blackburn Foundation

Not sure where to start? Our get help page lists free and urgent options. Your monitoring coordinator can also make the introduction.

Nearby areas

We also have pages for Walnut and Pomona. See every area we serve.