10 Panel Drug Test, Norwalk, CA
Accredited Drug Testing provides a 10-panel drug test at testing centers located in Norwalk CA and throughout the local area. Same day service is available, and most testing centers are within minutes of your home or office. DOT drug testing and ETG Alcohol testing is also available.
13440 IMPERIAL HWY 1.8 miles
SANTA FE SPRINGS, CA 90670
11817 TELEGRAPH RD 3.0 miles
SANTA FE SPRINGS, CA 90670
15330 VALLEY VIEW AVE STE 1 3.1 miles
LA MIRADA, CA 90638
16700 VALLEY VIEW AVE STE 180 3.4 miles
LA MIRADA, CA 90638
16702 VALLEY VIEW AVE 3.4 miles
LA MIRADA, CA 90638
9353 IMPERIAL HWY GARDEN MEDICAL OFFICE,3RD FLOOR 3.6 miles
DOWNEY, CA 90242
11411 BROOKSHIRE AVE STE 408 3.7 miles
DOWNEY, CA 90241
40 CENTERPOINTE DR 4.0 miles
LA PALMA, CA 90623
5220 CLARK AVE STE 445 4.5 miles
LAKEWOOD, CA 90712
5451 LA PALMA AVE STE 24 4.6 miles
LA PALMA, CA 90623
16444 PARAMOUNT BLVD 4.6 miles
PARAMOUNT, CA 90723
8337 TELEGRAPH RD STE 104 4.7 miles
PICO RIVERA, CA 90660
16660 PARAMONT BLVD STE 102 4.7 miles
PARAMOUNT, CA 90723
12385 WASHINGTON BLVD 4.8 miles
WHITTIER, CA 90606
5205 Lakewood Blvd 4.9 miles
Lakewood, CA 90712
5203 LAKEWOOD BLVD 4.9 miles
LAKEWOOD, CA 90712
12401 WASHINGTON BLVD 4.9 miles
WHITTIER, CA 90602
12462 PUTNAM ST ste 402 5.2 miles
WHITTIER, CA 90602
7300 ALONDRA BLVD STE 108 5.2 miles
PARAMOUNT, CA 90723
15141 Whittier Blvd Ste 125, 5.5 miles
Whittier, CA 90603
3430 GARFIELD AVE 6.6 miles
LOS ANGELES, CA 90040
10861 CHERRY ST STE 202 6.8 miles
LOS ALAMITOS, CA 90720
6538 TELEGRAPH RD 7.3 miles
LOS ANGELES, CA 90040
2814 W LINCOLN AVE 7.4 miles
ANAHEIM, CA 92801
3364 E SLAUSON AVE 7.8 miles
VERNON, CA 90058
3611 MLK Blvd STE 108 7.9 miles
LYNWOOD, CA 90262
309 W BEVERLY BLVD 7.9 miles
MONTEBELLO, CA 90640
333 S MAGNOLIA AVE 8.0 miles
ANAHEIM, CA 92804
19301 S SANTA FE AVE Ste 120 8.3 miles
COMPTON, CA 90221
710 N EUCLID ST STE 203 8.4 miles
ANAHEIM, CA 92801
2476 S ATLANTIC BLVD 8.5 miles
COMMERCE, CA 90040
1801 W ROMNEYA DR STE 106 8.5 miles
ANAHEIM, CA 92801
2300 W BEVERLY BLVD 8.6 miles
MONTEBELLO, CA 90640
1950 SUNNYCREST DR STE 1800 8.7 miles
FULLERTON, CA 92835
1720 TERMINO AVE 8.7 miles
LONG BEACH, CA 90804
1703 TERMINO AVE, STE 102 8.7 miles
LONG BEACH, CA 90804
2720 N HARBOR BLVD STE 130 8.8 miles
FULLERTON, CA 92835
2151 N HARBOR BLVD 8.8 miles
FULLERTON, CA 92835
2750 ATLANTIC AVE 8.9 miles
LONG BEACH, CA 90806
2499 S WILMINGTON AVE 8.9 miles
COMPTON, CA 90220
7052 ORANGEWOOD AVE STE 6 9.1 miles
GARDEN GROVE, CA 92841
2776 PACIFIC AVE 9.2 miles
LONG BEACH, CA 90806
12801 CROSSROADS PKWY S Ste 150 9.3 miles
CITY OF INDUSTRY, CA 91746
1006 W LA PALMA AVE 9.5 miles
ANAHEIM, CA 92801
482 W WILLOW ST 9.5 miles
LONG BEACH, CA 90806
6529 SEVILLE AVE 9.7 miles
HUNTINGTON PARK, CA 90255
12600 BEACH BLVD 9.8 miles
STANTON, CA 90680
2101 MAGNOLIA AVE 9.9 miles
LONG BEACH, CA 90806
16025 GALE AVE STE B10 10.2 miles
CITY OF INDUSTRY, CA 91745
1050 LINDEN AVE Ste 887 10.4 miles
LONG BEACH, CA 90813
1250 PACIFIC AVE 10.5 miles
LONG BEACH, CA 90813
4580 PACIFIC BLVD 10.7 miles
VERNON, CA 90058
1111 E LA PALMA AVE 10.7 miles
ANAHEIM, CA 92805
3851 S SOTO ST 10.9 miles
VERNON, CA 90058
3688 S Soto St 10.9 miles
Vernon, CA 90058
1001 E IMPERIAL HWY 10.9 miles
BREA, CA 92821
20401 AVALON BLVD STE C 11.2 miles
CARSON, CA 90746
7955 WESTMINSTER BLVD 11.2 miles
WESTMINSTER, CA 92683
15401 S MAIN ST 11.2 miles
GARDENA, CA 90248
566 E LAMBERT RD 11.2 miles
BREA, CA 92821
11152 S MAIN ST 11.2 miles
LOS ANGELES, CA 90061
455 E CARSON PLAZA DR 11.3 miles
CARSON, CA 90746
947 S ANAHEIM BLVD STE 120 11.3 miles
ANAHEIM, CA 92805
16630 S BROADWAY ST 11.4 miles
GARDENA, CA 90248
1000 S ANAHEIM BLVD STE 200 11.4 miles
ANAHEIM, CA 92805
3144 SANTA ANITA AVE STE 205 11.5 miles
EL MONTE, CA 91733
1717 E LINCOLN AVE 11.6 miles
Anaheim, CA 92805
211 S STATE COLLEGE BLVD STE 325 11.7 miles
ANAHEIM, CA 92806
9350 FLAIR DR Ste 102 11.8 miles
EL MONTE, CA 91731
17487 HURLEY ST 11.8 miles
CITY OF INDUSTRY, CA 91744
640 S PLACENTIA AVE 11.8 miles
PLACENTIA, CA 92870
15464 GOLDENWEST ST 11.8 miles
WESTMINSTER, CA 92683
5862 AVALON BLVD 12.1 miles
LOS ANGELES, CA 90003
18575 Gale Ave Ste 155 12.2 miles
City of Industry, CA 91748
18575 GALE AVE STE 295 12.2 miles
CITY OF INDUSTRY, CA 91748
1907 E WASHINGTON BLVD 12.2 miles
LOS ANGELES, CA 90021
23601 AVALON BLVD Ste 104 12.2 miles
CARSON, CA 90745
1149 W 190TH ST 12.3 miles
GARDENA, CA 90248
1300 W 155TH ST STE 109 12.4 miles
GARDENA, CA 90247
18335 VALLEY BLVD 12.5 miles
LA PUENTE, CA 91744
1300 N KRAEMER BLVD 12.9 miles
ANAHEIM, CA 92806
14148 FRANCISQUITO AVE 12.9 miles
BALDWIN PARK, CA 91706
100 Oceangate, P245 13.0 miles
LONG BEACH, CA 90802
On-site only 13.0 miles
Long Beach, CA 90802
2707 E VALLEY BLVD STE 116 13.1 miles
WEST COVINA, CA 91792
4500 RIVERVIEW AVE 13.2 miles
EL MONTE, CA 91731
124 N VIGNES ST 13.4 miles
LOS ANGELES, CA 90012
909 E YORBA LINDA BLVD STE H 13.4 miles
PLACENTIA, CA 92870
100 S RAYMOND AVE 13.4 miles
ALHAMBRA, CA 91801
420 E 3rd St Ste 802, 13.6 miles
Los Angeles, CA 90013
2121 S TOWNE CENTRE PL STE 100 13.6 miles
ANAHEIM, CA 92806
1201 N. ROSE DR. SUITE 202 13.7 miles
PLACENTIA, CA 92870
3320 S HILL ST 13.7 miles
LOS ANGELES, CA 90007
940 E MAIN ST 13.8 miles
ALHAMBRA, CA 91801
1301 N ROSE DR 13.8 miles
PLACENTIA, CA 92870
416 W LAS TUNAS DR, STE 204 13.9 miles
SAN GABRIEL, CA 91776
330 W. LAS TUNAS DR. STE 2 13.9 miles
SAN GABRIEL, CA 91776
17122 BEACH BLVD STE 104 14.0 miles
Huntington Beach, CA 92647
1400 S GRAND AVE STE 612 14.0 miles
LOS ANGELES, CA 90015
725 S ORANGE AVE 14.1 miles
WEST COVINA, CA 91790
2301 W EL SEGUNDO BLVD 14.1 miles
HAWTHORNE, CA 90250
21081 S WESTERN AVE STE 150 14.1 miles
TORRANCE, CA 90501
823 N BROADWAY 14.3 miles
LOS ANGELES, CA 90012
333 S HOPE ST STE C145 14.3 miles
LOS ANGELES, CA 90071
17024 MAGNOLIA ST 14.4 miles
FOUNTAIN VALLEY, CA 92708
8970 WARNER AVE 14.4 miles
FOUNTAIN VALLEY, CA 92708
929 GEORGIA ST 14.6 miles
LOS ANGELES, CA 90015
117 E LIVE OAK AVE STE 101 14.6 miles
ARCADIA, CA 91006
132 S BEAUDRY AVE 14.7 miles
LOS ANGELES, CA 90012
1127 Wilshire Blvd Ste 203&204, 14.8 miles
Los Angeles, CA 90017
17822 BEACH BL SUITE 242 14.8 miles
HUNTINGTON BEACH, CA 92647
25965 NORMANDIE AVE FL 1 14.8 miles
HARBOR CITY, CA 90710
1225 WILSHIRE BLVD 14.8 miles
LOS ANGELES, CA 90017
1313 W 8TH ST ste 100 14.8 miles
LOS ANGELES, CA 90017
1310 W Stewart Dr Ste 304, 14.9 miles
Orange, CA 92868
14619 PRAIRIE AVE 15.0 miles
LAWNDALE, CA 90260
1010 W La Veta Ave Ste 140, 15.1 miles
Orange, CA 92868
946 W TOWN AND COUNTRY RD 15.2 miles
ORANGE, CA 92868
705 W LA VETA AVE STE 102 15.2 miles
ORANGE, CA 92868
411 N LAKEVIEW AVE 15.3 miles
ANAHEIM, CA 92807
18561 BEACH BLVD 15.4 miles
HUNTINGTON BEACH, CA 92648
11180 E Warner Ave Ste 159, 15.4 miles
Fountain Valley, CA 92708
18800 Main St Ste 111, 15.6 miles
Huntington Beach, CA 92648
4253 REDONDO BEACH BLVD 15.6 miles
LAWNDALE, CA 90260
2131 W 3RD ST Ste 4 15.6 miles
LOS ANGELES, CA 90057
169 S ALVARADO ST STE 101 15.6 miles
LOS ANGELES, CA 90057
9920 TALBERT AVE 15.6 miles
FOUNTAIN VALLEY, CA 92708
9900 Talbert Ave Ste 203, 15.7 miles
Fountain Valley, CA 92708
11633 HAWTHORNE BLVD #215 15.7 miles
HAWTHORNE, CA 90250
1045 N TUSTIN ST 15.7 miles
ORANGE, CA 92867
18811 FLORIDA ST 15.7 miles
HUNTINGTON BEACH, CA 92648
56 E DUARTE RD 16.0 miles
ARCADIA, CA 91006
2640 E GARVEY AVE S STE 106 16.1 miles
WEST COVINA, CA 91791
2231 S WESTERN AVE 16.1 miles
LOS ANGELES, CA 90018
21320 HAWTHORNE BLVD STE 227 16.2 miles
TORRANCE, CA 90503
3100 W WARNER AVE 16.2 miles
SANTA ANA, CA 92704
15705 ARROW HWY STE 6B 16.3 miles
IRWINDALE, CA 91706
3330 LOMITA BLVD 16.3 miles
TORRANCE, CA 90505
50 ALESSANDRO PL. SUITE A10 16.3 miles
PASADENA, CA 91105
4101 TORRANCE BLVD 16.5 miles
TORRANCE, CA 90503
23441 Madison St Ste 300, 16.5 miles
Torrance, CA 90505
3401 S HARBOR BLVD 16.6 miles
SANTA ANA, CA 92704
867 S TUSTIN ST 16.6 miles
ORANGE, CA 92866
100 W CALIFORNIA BLVD 16.6 miles
PASADENA, CA 91105
5345 IRWINDALE AVE 16.7 miles
IRWINDALE, CA 91706
3545 WILSHIRE BLVD STE 325 16.8 miles
LOS ANGELES, CA 90010
23441 MADISON ST.BLD8,STE 110 16.8 miles
TORRANCE, CA 90505
1750 E COLORADO BLVD 16.9 miles
PASADENA, CA 91106
960 E GREEN ST, STE 164 17.0 miles
PASADENA, CA 91106
1294 W 6th St Ste 206, 17.1 miles
San Pedro, CA 90731
1360 W 6TH ST STE 190 17.2 miles
SAN PEDRO, CA 90732
9122 ADAMS AVE 17.2 miles
HUNTINGTON BEACH, CA 92646
1300 W 7TH ST 17.2 miles
SAN PEDRO, CA 90732
554 E San Bernardino Rd Ste 10, 17.4 miles
Covina, CA 91723
520 N Prospect Ave Ste 305, 17.4 miles
Redondo Beach, CA 90277
6000 N IRWINDALE AVE STE A 17.5 miles
IRWINDALE, CA 91702
800 N Tustin Ave Ste A 17.6 miles
Santa Ana, CA 92705
801 N Tustin Ave Ste 102, 17.6 miles
Santa Ana, CA 92705
920 N NASH ST 17.6 miles
EL SEGUNDO, CA 90245
17542 17TH ST STE 330 17.7 miles
TUSTIN, CA 92780
20770 ASH CIR STE 200 17.7 miles
YORBA LINDA, CA 92886
100 N TUSTIN AVE 17.8 miles
TUSTIN, CA 92780
1300 N VERMONT AVE 18.0 miles
LOS ANGELES, CA 90027
6033 W CENTURY BLVD STE 200 18.0 miles
LOS ANGELES, CA 90045
1530 E Edinger Ave Ste 1 18.0 miles
Santa Ana, CA 92705
6520 N IRWINDALE AVE STE 100 18.0 miles
IRWINDALE, CA 91702
5525 W SLAUSON AVE 18.0 miles
LOS ANGELES, CA 90056
390 N SEPULVEDA BLVD STE 1000 18.1 miles
EL SEGUNDO, CA 90245
1700 E WALNUT AVE 18.2 miles
EL SEGUNDO, CA 90245
1619 E Edinger Ave 18.3 miles
Santa Ana, CA 92705
9601 S SEPULVEDA BLVD 18.3 miles
LOS ANGELES, CA 90045
8930 S SEPULVEDA BLVD STE 200 18.4 miles
LOS ANGELES, CA 90045
8800 S SEPULVEDA BLVD STE 8 18.4 miles
LOS ANGELES, CA 90045
8726 S SEPULVEDA BLVD 18.4 miles
LOS ANGELES, CA 90045
222 W EULALIA ST STE 101 18.4 miles
GLENDALE, CA 91204
801 S CHEVY CHASE DR 18.6 miles
GLENDALE, CA 91205
801 S Chevy Chase Dr Ste 50, 18.6 miles
Glendale, CA 91205
1534 E WARNER AVE 18.6 miles
SANTA ANA, CA 92705
1241 E DYER RD STE 145 18.6 miles
SANTA ANA, CA 92705
5455 WILSHIRE BLVD STE 1802 18.8 miles
LOS ANGELES, CA 90036
5475 E LA PALMA AVE 18.8 miles
ANAHEIM, CA 92807
110 N LA BREA AVE 19.1 miles
INGLEWOOD, CA 90301
5971 VENICE BLVD FL 4 19.1 miles
LOS ANGELES, CA 90034
1253 VINE ST ste 19A 19.3 miles
LOS ANGELES, CA 90038
17232 RED HILL AVE 19.3 miles
IRVINE, CA 92614
801 CORPORATE CENTER DR STE 130 19.4 miles
POMONA, CA 91768
1000 BRISTOL ST N Ste 1B 19.5 miles
NEWPORT BEACH, CA 92660
1350 W COVINA BLVD 19.6 miles
SAN DIMAS, CA 91773
230 N MARYLAND AVE STE 110 19.7 miles
GLENDALE, CA 91206
544 N GLENDALE AVE 19.7 miles
GLENDALE, CA 91206
1526 N EDGEMONT ST FL 1 19.8 miles
LOS ANGELES, CA 90027
432 W BROADWAY 19.8 miles
GLENDALE, CA 91204
301 VICTORIA ST 19.8 miles
COSTA MESA, CA 92627
250 S GRAND AVE 20.0 miles
GLENDORA, CA 91741
8512 Whitworth Dr 20.0 miles
LOS ANGELES, CA 90035
1300 N LA BREA AVE 20.0 miles
HOLLYWOOD, CA 90028
2492 WALNUT AVE STE 110 20.1 miles
TUSTIN, CA 92780
221 E GLENOAKS BLVD STE 130 20.3 miles
GLENDALE, CA 91207
2362 MORSE AVE 20.3 miles
IRVINE, CA 92614
8501 Wilshire Blvd Suite 305, 20.3 miles
Beverly Hills, CA 90211
1716 W HOLT AVE 20.5 miles
POMONA, CA 91768
12001 W WASHINGTON BLVD 20.6 miles
LOS ANGELES, CA 90066
3002 DOW AVE STE 204 20.7 miles
TUSTIN, CA 92780
12212 W WASHINGTON BLVD 20.8 miles
LOS ANGELES, CA 90066
1419 SUPERIOR AVE STE 1 20.9 miles
NEWPORT BEACH, CA 92663
320 SUPERIOR AVE. STE 150 20.9 miles
NEWPORT BEACH, CA 92663
8700 BEVERLY BLVD 21.0 miles
WEST HOLLYWOOD, CA 90048
13768 Roswell Suite 220, 21.7 miles
Chino, CA 91710
502 S GAREY AVE 21.8 miles
POMONA, CA 91766
501 S BUENA VISTA ST 22.4 miles
BURBANK, CA 91505
11560 W PICO BLVD 22.6 miles
LOS ANGELES, CA 90064
2701 W ALAMEDA AVE STE 203 22.7 miles
BURBANK, CA 91505
4950 Barranca Pkwy Ste 101, 22.7 miles
Irvine, CA 92604
400 NEWPORT CENTER DR STE 202 23.3 miles
NEWPORT BEACH, CA 92660
15302 EL PRADO RD 23.3 miles
CHINO, CA 91710
757 WESTWOOD PLZ 23.7 miles
LOS ANGELES, CA 90095
11645 WILSHIRE BLVD STE 830 24.0 miles
LOS ANGELES, CA 90025
3413 W PACIFIC AVE 102 24.1 miles
BURBANK, CA 91505
11611 SAN VICENTE BLVD 24.3 miles
LOS ANGELES, CA 90049
16200 SAND CANYON AVE 24.3 miles
IRVINE, CA 92618
5475 WALNUT AVE 24.3 miles
CHINO, CA 91710
2121 SANTA MONICA BLVD 24.4 miles
SANTA MONICA, CA 90404
1908 SANTA MONICA BLVD STE 5 24.4 miles
SANTA MONICA, CA 90404
15775 LAGUNA CANYON RD Ste 100 24.6 miles
IRVINE, CA 92618
1250 16TH ST 24.7 miles
SANTA MONICA, CA 90404
3413 W PACIFIC AVE 25.0 miles
BURBANK, CA 91505
Urine drug testing is the most common and customizable screening method available in the drug testing world. Many times, drug tests are ordered from companies, courts, or individuals without knowing what drug panel is needing to be analyzed.
The most common drug panel options include the 5,10, 12, 14 and 17 panel drug tests but we also offer specialized and customized panels based on your specific need and we are here to discuss exactly what is tested in each type of drug test panel.
Urine or Hair Drug Testing in Norwalk, CA - You Choose!
The detection period for a urine drug test is 1-5 days. However, hair drug testing is becoming more common because the detection period for a standard hair test can be up to 90 days. You must have at least an inch and a half of hair (1.5 inches) on your head or body hair may be used when conducting a hair drug test.
Facts About 10 Panel Drug Test
- The most cost-effective option in the workplace
- Most common and customizable screening method
- Detects recent drug use
- Available in instant or lab based testing options
Remember that many opioid addictions lead to further drug use, including heroin, so you may find that a standard 5 and 10 panel is not fulfilling your needs. In this case, consider a 12-panel drug test, which tests for additional opiates and painkillers that would not show up on a test with fewer panels.
A urine drug test detects recent drug use and is currently the only testing method that is approved for federally mandated drug testing.(5 panel DOT drug Test) Urine testing is appropriate for all testing reasons, from pre-employment to random to post-accident - and can be performed for a wide range of illicit and prescription drugs.
What drug are tested for in a 10 Panel Drug Test?
The drugs tested in a10 panel urine drug test include:
- Amphetamines
- Barbiturates
- Benzodiazepines
- Cocaine
- Marijuana
- MDA
- Methadone
- Methaqualone
- Opiates
- PCP
- Propoxyphene
The standard 10 panel drug test is typically collected at a collection site and analyzed at a SAMHSA Certified Laboratory. If you need a rapid results test, the 10 panel is available for a rapid result in most areas Nationwide. Results for a rapid results test are typically available the same business day (for negative results) and if a non-negative result exist, we send the specimen to the lab to perform confirmation testing at no additional charge.
What is a drug test?
A drug test is a technical analysis of a biological specimen such as urine, hair, blood, breath, finger nail and oral fluid/saliva. The common procedure for a drug test is to have a donor provide a specimen to a drug testing collection specialist, complete a chain of custody form and then the collector will send by carrier the specimen to a laboratory for analysis and a determination if the specimen is negative or positive. Although there many laboratories in the United States which provide drug testing analysis, it is recommended that only a laboratory that is SAMHSA Certified is to be used when determining a drug testing result.
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
In the case of life-threatening symptoms, unconsciousness, or bizarre behavior in an emergency situation, screening for common drugs and toxins may help find the cause, called a toxicology test or tox screen to denote the broader area of possible substances beyond just self-administered drugs. These tests can also be done post-mortem during an autopsy in cases where a death was not expected. The test is usually done within 96 h (4 days) after the desire for the test is realized. Both a urine sample and a blood sample may be tested.
ADT offers 10 panel urine drug tests in Norwalk, CA.
Don't see your location, call us today at
(800) 221-4291
(800) 221-4291
Norwalk Drug Testing locations
To schedule a 5, 10, 12, 14 or 17 panel urine or hair drug test at a testing center in Norwalk CA, please call (800) 221-4291 or schedule online.
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Local Norwalk Information
Local Area Info: Norwalk, California
The area known as "Norwalk" was first home to the Shoshonean Native American tribe. They survived primarily on honey, an array of berries, acorns, sage, squirrels, rabbits and birds. Their huts were part of the Sejat Indian village.
In the late 1760s, settlers and missions flourished under Spanish rule with the famous El Camino Real trail traversing the area. Manuel Nieto, a Spanish soldier, received a Spanish land grant (Rancho Los Nietos) in 1784 that included Norwalk.
After the Mexican–American War in 1848, the Rancho and mining days ended. Portions of the land were subdivided and made available for sale when California was admitted into the union of the United States. Word of this land development reached the Sproul Brothers in Oregon. They recalled the fertile land and huge sycamore trees they saw during an earlier visit to the Southern California area. In 1869, Atwood Sproul, on behalf of his brother, Gilbert, purchased 463 acres (1.87 km2) of land at $11 an acre ($2700/km²) in an area known as Corazón de los Valles, or "Heart of the Valleys".