California Mobile Drug Testing Coverage & Response Times
Statewide Coverage. Local Speed. Immediate Response.
Modesto / Stockton (Central Valley Hub)
Response Time: Under 1 Hour (Primary Coverage Area)
24/7 Short Notice & Prescheduled Testing
We proudly serve employers in Modesto and surrounding cities within approximately one hour, including:
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Modesto
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Stockton
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Tracy
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Turlock
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Manteca
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Merced
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Ceres
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Riverbank
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Oakdale
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Patterson
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Ripon
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Escalon
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Lathrop
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Los Banos
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Atwater
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Waterford
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Delhi
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Hughson
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Denair
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Hilmar
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Vernalis
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Ballico
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Livingston
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Winton
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Newman
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Mountain House
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Livermore
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Byron
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Discovery Bay
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Brentwood
Our Central Valley hub supports trucking companies, construction crews, manufacturing facilities, distribution centers, warehouse operations, agricultural sites, forklift operators, and other safety-sensitive employers requiring immediate and compliant testing services.
Same-day testing is available to protect your workforce and maintain defensible California compliance.
Sacramento Regional Hub
(coming soon)
Response Time: Under 1 Hour (Primary Coverage Area)
24/7 Short-Notice & Prescheduled Onsite Testing
Surety Mobile Drug Testing provides rapid-response mobile and onsite drug and alcohol testing throughout the Sacramento region, strategically positioned to deliver under one-hour response times within our primary service area.
Our Sacramento hub supports employers across the greater Sacramento metropolitan area and surrounding cities within approximately a 60-mile driving radius, including:
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Sacramento
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Elk Grove
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Roseville
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Rocklin
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Folsom
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Rancho Cordova
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Citrus Heights
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West Sacramento
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Woodland
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Davis
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Auburn
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Lincoln
We specialize in compliant and defensible drug testing services for:
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DOT trucking companies
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Construction and trade contractors
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Manufacturing facilities
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Distribution centers and warehouse operations
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Forklift operators and safety-sensitive positions
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Public works and municipal employers
Our Sacramento team is available 24/7 for:
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Reasonable suspicion testing
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Post-accident testing
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Random testing programs
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Pre-employment screening
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Return-to-duty and follow-up testing
Same-day testing is available to help supervisors respond immediately when an employee appears impaired, protecting workplace safety and ensuring California compliance.
Southern California (Los Angeles Hub)
24/7 Short Notice & Prescheduled Testing
Serving:
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Los Angeles
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Riverside
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Inland Empire
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Orange County (prescheduled)
Statewide California Coverage
Surety Mobile Drug Testing can provide onsite services anywhere in California.
Driving distance may affect response time for short-notice testing outside primary hub regions.
Surety Mobile Drug Testing provides rapid-response mobile and onsite drug and alcohol testing services throughout California. With strategic regional hubs in the Central Valley (Modesto/Stockton), Sacramento, and Los Angeles, we offer under one-hour response times in primary coverage areas and 24/7 short-notice testing for employers needing immediate reasonable suspicion or post-accident testing.
For prescheduled compliance programs, we provide 24-hour coverage throughout Southern California and statewide service across all of California, with response times based on driving distance.
