Knollwood, IL Facts, Population, Income, Demographics, Economy

Population (female): 919

Median Age: 39.0 years

Cost of Living: March 2019 cost of living index in Knollwood: 102.9 (near average, U.S. average is 100)

Poverty (overall): Percentage of residents living in poverty in 2017: 5.1%

Sex Offenders:

Land Area:

Population Density:

Zip Codes:

Median Incomes:
      Estimated median household income in 2017: $85,895
      Estimated per capita income in 2017: $43,955
      Estimated median house or condo value in 2017: $262,600 Knollwood:$262,600IL:$195,300

Knollwood is bordered by the village of Lake Bluff to the north, northeast and southeast. To the south, the city of Lake Forest and to the west, the village of Green Oaks, and unincorporated Rondout.

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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)

Drug Testing1

Employment, DOT, Court Ordered, Probation, Family

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 Knollwood, IL

207 Waukegan Rd Ste 207, 0.3 miles

207 Waukegan Rd Ste 207,
Lake Bluff, IL 60044
Categories: Lake Bluff IL

904B S Milwaukee Ave 3.5 miles

904B S Milwaukee Ave
Libertyville, IL 60048
Categories: Libertyville IL

2615 WASHINGTON ST VISTA CORPORATE HEALTH 4.6 miles

2615 WASHINGTON ST VISTA CORPORATE HEALTH
WAUKEGAN, IL 60085
Categories: WAUKEGAN IL

565 Lakeview Pkwy Ste 100, 4.7 miles

565 Lakeview Pkwy Ste 100,
Vernon Hills, IL 60061
Categories: Vernon Hills IL

35 TOWER CT STE E 5.0 miles

35 TOWER CT STE E
GURNEE, IL 60031
Categories: GURNEE IL

15 Tower Court S-170, 5.1 miles

15 Tower Court S-170,
Gurnee, IL 60031
Categories: Gurnee IL

6 E PHILLIP RD 5.3 miles

6 E PHILLIP RD
VERNON HILLS, IL 60061
Categories: VERNON HILLS IL

724 N. Green Bay Road 5.9 miles

724 N. Green Bay Road
Waukegan, IL 60085
Categories: Waukegan IL

1445 N HUNT CLUB RD STE 101 6.5 miles

1445 N HUNT CLUB RD STE 101
GURNEE, IL 60031
Categories: GURNEE IL

1450 Busch Pkwy, 8.1 miles

1450 Busch Pkwy,
Buffalo Grove, IL 60089
Categories: Buffalo Grove IL

1411 MCHENRY RD STE 103 9.3 miles

1411 MCHENRY RD STE 103
BUFFALO GROVE, IL 60089
Categories: BUFFALO GROVE IL

306 ERA DR 9.6 miles

306 ERA DR
NORTHBROOK, IL 60062
Categories: NORTHBROOK IL

1275 E BELVIDERE RD STE 110 9.7 miles

1275 E BELVIDERE RD STE 110
GRAYSLAKE, IL 60030
Categories: GRAYSLAKE IL

15 S MCHENRY RD 9.8 miles

15 S MCHENRY RD
BUFFALO GROVE, IL 60089
Categories: BUFFALO GROVE IL

605 ACADEMY DR 9.8 miles

605 ACADEMY DR
NORTHBROOK, IL 60062
Categories: NORTHBROOK IL

544A W DUNDEE RD 10.3 miles

544A W DUNDEE RD
WHEELING, IL 60090
Categories: WHEELING IL

3115 LEWIS AVE 11.2 miles

3115 LEWIS AVE
ZION, IL 60099
Categories: ZION IL

1854 E Grand Ave, 11.8 miles

1854 E Grand Ave,
Lindenhurst, IL 60046
Categories: Lindenhurst IL

350 Surryse Rd, 12.1 miles

350 Surryse Rd,
Lake Zurich, IL 60047
Categories: Lake Zurich IL

770 E Dundee Rd 12.4 miles

770 E Dundee Rd
Palatine, IL 60074
Categories: Palatine IL

1050 RED OAK LN CORPORATE HEALTH SERVICES 12.6 miles

1050 RED OAK LN CORPORATE HEALTH SERVICES
LINDENHURST, IL 60046
Categories: LINDENHURST IL

902 W DUNDEE RD RIDGE PLAZA 12.9 miles

902 W DUNDEE RD RIDGE PLAZA
ARLINGTON HEIGHTS, IL 60004
Categories: ARLINGTON HEIGHTS IL

2150 PFINGSTEN RD STE 3000 13.2 miles

2150 PFINGSTEN RD STE 3000
GLENVIEW, IL 60026
Categories: GLENVIEW IL

2150 PFINGSTEN RD 13.2 miles

2150 PFINGSTEN RD
GLENVIEW, IL 60026
Categories: GLENVIEW IL

2601 COMPASS RD, STE 130 13.4 miles

2601 COMPASS RD, STE 130
GLENVIEW NAS, IL 60026
Categories: GLENVIEW NAS IL

2591 Compass Rd Ste 110, 13.4 miles

2591 Compass Rd Ste 110,
Glenview, IL 60026
Categories: Glenview IL

1217 S RAND RD 13.8 miles

1217 S RAND RD
LAKE ZURICH, IL 60047
Categories: LAKE ZURICH IL

337 W. Northwest Highway, 14.1 miles

337 W. Northwest Highway,
Palatine, IL 60067
Categories: Palatine IL

50 S NORTHWEST HWY 14.4 miles

50 S NORTHWEST HWY
PALATINE, IL 60074
Categories: PALATINE IL

3060 W SALT CREEK LN STE 110 15.1 miles

3060 W SALT CREEK LN STE 110
ARLINGTON HEIGHTS, IL 60005
Categories: ARLINGTON HEIGHTS IL

1545 HICKS RD 15.3 miles

1545 HICKS RD
ROLLING MEADOWS, IL 60008
Categories: ROLLING MEADOWS IL

1214 Brownwood Ste B 15.3 miles

1214 Brownwood Ste B
Mount Prospect, IL 60056
Categories: Mount Prospect IL

121 SOUTH WILKE RD, #405 15.4 miles

121 SOUTH WILKE RD, #405
ARLINGTON HEIGHTS, IL 60005
Categories: ARLINGTON HEIGHTS IL

371 West Northwest Highway 15.4 miles

371 West Northwest Highway
Palatine, IL 60067
Categories: Palatine IL

117 S COOK ST STE 306 15.7 miles

117 S COOK ST STE 306
BARRINGTON, IL 60010
Categories: BARRINGTON IL

2380 S ELMHURST RD 16.0 miles

2380 S ELMHURST RD
MOUNT PROSPECT, IL 60056
Categories: MOUNT PROSPECT IL

100 N RIVER RD 16.0 miles

100 N RIVER RD
DES PLAINES, IL 60016
Categories: DES PLAINES IL

605 W CENTRAL RD STE 101 16.1 miles

605 W CENTRAL RD STE 101
ARLINGTON HEIGHTS, IL 60005
Categories: ARLINGTON HEIGHTS IL

1100 W. Central Rd., Suite 402 16.1 miles

1100 W. Central Rd., Suite 402
Arlington Heights, IL 60005
Categories: Arlington Heights IL

800 W CENTRAL RD 16.1 miles

800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005
Categories: ARLINGTON HEIGHTS IL

8630 W GOLF RD 16.1 miles

8630 W GOLF RD
NILES, IL 60714
Categories: NILES IL

3040 SOUTHCREEK LANE 16.1 miles

3040 SOUTHCREEK LANE
ARLINGTON HEIGHTS, IL 60005
Categories: ARLINGTON HEIGHTS IL

4949 EUCLID AVE 16.2 miles

4949 EUCLID AVE
PALATINE, IL 60067
Categories: PALATINE IL

1 KRAFT CT 16.3 miles

1 KRAFT CT
GLENVIEW, IL 60025
Categories: GLENVIEW IL

22285 Pepper Road, Suite S-107 16.7 miles

22285 Pepper Road, Suite S-107
Barrington, IL 60010
Categories: Barrington IL

1060 S ELMHURST RD 16.8 miles

1060 S ELMHURST RD
MOUNT PROSPECT, IL 60056
Categories: MOUNT PROSPECT IL

1600 Dempster St Ste 218, 17.1 miles

1600 Dempster St Ste 218,
Park Ridge, IL 60068
Categories: Park Ridge IL

543 ORCHARD ST 17.3 miles

543 ORCHARD ST
ANTIOCH, IL 60002
Categories: ANTIOCH IL

4709 W. Golf, Suite 806 17.6 miles

4709 W. Golf, Suite 806
Skokie, IL 60076
Categories: Skokie IL

6449 DEMPSTER ST 17.7 miles

6449 DEMPSTER ST
MORTON GROVE, IL 60053
Categories: MORTON GROVE IL

8125 RIVER DR STE 102 18.6 miles

8125 RIVER DR STE 102
MORTON GROVE, IL 60053
Categories: MORTON GROVE IL

808 E Woodfield Rd Ste 400, 18.9 miles

808 E Woodfield Rd Ste 400,
Schaumburg, IL 60173
Categories: Schaumburg IL

7705 SHERIDAN RD 19.2 miles

7705 SHERIDAN RD
KENOSHA, WI 53143
Categories: KENOSHA WI

1830 JARVIS AVE 19.2 miles

1830 JARVIS AVE
ELK GROVE VILLAGE, IL 60007
Categories: ELK GROVE VILLAGE IL

2200 LANDMEIER RD STE 2200 19.4 miles

2200 LANDMEIER RD STE 2200
ELK GROVE VILLAGE, IL 60007
Categories: ELK GROVE VILLAGE IL

361 W GOLF RD 19.4 miles

361 W GOLF RD
SCHAUMBURG, IL 60195
Categories: SCHAUMBURG IL

9555 76TH ST 19.5 miles

9555 76TH ST
PLEASANT PRAIRIE, WI 53158
Categories: PLEASANT PRAIRIE WI

10400 75TH ST 19.6 miles

10400 75TH ST
KENOSHA, WI 53142
Categories: KENOSHA WI

10117 - 74th St. Suite 110, 19.6 miles

10117 - 74th St. Suite 110,
Kenosha, WI 53142
Categories: Kenosha WI

1375 E SCHAUMBURG RD 19.6 miles

1375 E SCHAUMBURG RD
SCHAUMBURG, IL 60194
Categories: SCHAUMBURG IL

3922 Mercy Dr 20.0 miles

3922 Mercy Dr
McHenry, IL 60050
Categories: McHenry IL

4119 Shamrock Ln, 20.2 miles

4119 Shamrock Ln,
McHenry, IL 60050
Categories: McHenry IL

6530 SHERIDAN RD 20.2 miles

6530 SHERIDAN RD
KENOSHA, WI 53143
Categories: KENOSHA WI

2334A W HIGGINS RD 20.3 miles

2334A W HIGGINS RD
HOFFMAN ESTATES, IL 60195
Categories: HOFFMAN ESTATES IL

6021 56th Ave Ste 102 20.4 miles

6021 56th Ave Ste 102
KENOSHA, WI 53142
Categories: KENOSHA WI

2500 W Higgins Rd Ste 460, 20.4 miles

2500 W Higgins Rd Ste 460,
Hoffman Estates, IL 60169
Categories: Hoffman Estates IL

6308 8TH AVE 20.4 miles

6308 8TH AVE
KENOSHA, WI 53143
Categories: KENOSHA WI

4309 W MEDICAL CENTER DR STE B300 20.5 miles

4309 W MEDICAL CENTER DR STE B300
MCHENRY, IL 60050
Categories: MCHENRY IL

126 BIESTERFIELD RD 20.5 miles

126 BIESTERFIELD RD
ELK GROVE VILLAGE, IL 60007
Categories: ELK GROVE VILLAGE IL

800 Austin St, East Tower Ste 457 20.5 miles

800 Austin St, East Tower Ste 457
Evanston, IL 60202
Categories: Evanston IL

6191 N CANFIELD AVE 20.5 miles

6191 N CANFIELD AVE
CHICAGO, IL 60631
Categories: CHICAGO IL

633 Ridgeview Dr 20.7 miles

633 Ridgeview Dr
McHenry, IL 60050
Categories: McHenry IL

5800 7TH AVE 20.8 miles

5800 7TH AVE
KENOSHA, WI 53140
Categories: KENOSHA WI

1555 BARRINGTON RD 20.8 miles

1555 BARRINGTON RD
HOFFMAN ESTATES, IL 60169
Categories: HOFFMAN ESTATES IL

4805 PRIME PKWY 20.9 miles

4805 PRIME PKWY
MCHENRY, IL 60050
Categories: MCHENRY IL

519 S ROSELLE RD 21.0 miles

519 S ROSELLE RD
SCHAUMBURG, IL 60193
Categories: SCHAUMBURG IL

7742 W HIGGINS RD 21.1 miles

7742 W HIGGINS RD
CHICAGO, IL 60631
Categories: CHICAGO IL

O'Hare International Airport Terminal 2 21.2 miles

O'Hare International Airport Terminal 2
Chicago, IL 60666
Categories: Chicago IL

4801 W Peterson Ave Ste 205, 21.7 miles

4801 W Peterson Ave Ste 205,
Chicago, IL 60646
Categories: Chicago IL

4900 N CUMBERLAND AVE 22.1 miles

4900 N CUMBERLAND AVE
NORRIDGE, IL 60706
Categories: NORRIDGE IL

260 E Congress Pkwy Ste E, 22.1 miles

260 E Congress Pkwy Ste E,
Crystal Lake, IL 60014
Categories: Crystal Lake IL

4830 N Cumberland Ave Ste 9 22.2 miles

4830 N Cumberland Ave Ste 9
Norridge, IL 60706
Categories: Norridge IL

5911 NORTHWEST HWY STE 108 22.3 miles

5911 NORTHWEST HWY STE 108
CRYSTAL LAKE, IL 60014
Categories: CRYSTAL LAKE IL

5911 NORTHWEST HIGHWAY,STE 108 22.3 miles

5911 NORTHWEST HIGHWAY,STE 108
CRYSTAL LAKE, IL 60014
Categories: CRYSTAL LAKE IL

3333 BEVERLY RD 22.4 miles

3333 BEVERLY RD
HOFFMAN ESTATES, IL 60179
Categories: HOFFMAN ESTATES IL

5961 N LINCOLN AVE UNIT 2 22.5 miles

5961 N LINCOLN AVE UNIT 2
CHICAGO, IL 60659
Categories: CHICAGO IL

1240 IL ROUTE 83 22.7 miles

1240 IL ROUTE 83
BENSENVILLE, IL 60106
Categories: BENSENVILLE IL

2300 W PETERSON AVE 22.8 miles

2300 W PETERSON AVE
CHICAGO, IL 60659
Categories: CHICAGO IL

360 STATION DR 3RD FL 22.9 miles

360 STATION DR 3RD FL
CRYSTAL LAKE, IL 60014
Categories: CRYSTAL LAKE IL

4200 MANNHEIM RD 22.9 miles

4200 MANNHEIM RD
SCHILLER PARK, IL 60176
Categories: SCHILLER PARK IL

6140 N BROADWAY ST 23.3 miles

6140 N BROADWAY ST
CHICAGO, IL 60660
Categories: CHICAGO IL

4757 W MONTROSE AVE 23.6 miles

4757 W MONTROSE AVE
CHICAGO, IL 60641
Categories: CHICAGO IL

4211 N CICERO AVE 23.8 miles

4211 N CICERO AVE
CHICAGO, IL 60641
Categories: CHICAGO IL

3101 N HARLEM AVE LOWER LEVEL 23.8 miles

3101 N HARLEM AVE LOWER LEVEL
CHICAGO, IL 60634
Categories: CHICAGO IL

4126 N Milwaukee Ave, 23.8 miles

4126 N Milwaukee Ave,
Chicago, IL 60641
Categories: Chicago IL

141 E. IRVING PARK ROAD 24.1 miles

141 E. IRVING PARK ROAD
STREAMWOOD, IL 60107
Categories: STREAMWOOD IL

7107 W BELMONT AVE 24.4 miles

7107 W BELMONT AVE
CHICAGO, IL 60634
Categories: CHICAGO IL

1339 W LAKE ST 24.4 miles

1339 W LAKE ST
ADDISON, IL 60101
Categories: ADDISON IL

1515 E LAKE ST STE 100 24.5 miles

1515 E LAKE ST STE 100
HANOVER PARK, IL 60133
Categories: HANOVER PARK IL

10137 GRAND AVE 24.6 miles

10137 GRAND AVE
FRANKLIN PARK, IL 60131
Categories: FRANKLIN PARK IL

113 W LAKE ST 24.9 miles

113 W LAKE ST
BLOOMINGDALE, IL 60108
Categories: BLOOMINGDALE IL

303 W LAKE ST 24.9 miles

303 W LAKE ST
ADDISON, IL 60101
Categories: ADDISON IL

Don't see a location near you? Call us (800) 221-4291)

If you need a Drug, Alcohol, COVID-19 or DNA test in Knollwood, IL, Accredited Drug Testing has many drug testing locations in Knollwood, IL 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 Knollwood, IL 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"

How to schedule a drug test in Knollwood, IL

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 Knollwood, IL - 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.

Court Ordered Drug Testing (Probation/Child Custody)

Our local drug testing Knollwood, IL 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 Knollwood, IL

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

Employer/Drug Free Workplace Testing in Knollwood, IL

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 Knollwood, IL 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 Knollwood, IL?

  • 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 Knollwood, IL

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 Knollwood, IL.

Drug Testing Locations in Knollwood, IL

Accredited Drug Testing has drug testing locations in Knollwood, IL 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 Knollwood, IL 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 Knollwood, IL 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 screeningings are available as well.

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 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 Knollwood, IL?

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 Knollwood, IL is our #1 Priority and we look forward to serving the needs of employers and individuals who need any type of test.

(800) 221-4291

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For more information regarding the effects of drug abuse - Click Here

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Local Area Info: Knollwood, Illinois

Knollwood is an unincorporated census-designated place (CDP) in Lake County, Illinois. It is located within Shields Township and Libertyville Township. Knollwood shares a postal code with the neighboring village of Lake Bluff, and children attend Lake Bluff schools. The residents of Knollwood are served by the Knollwood Fire Department, Lake County Sheriff's Department. As of 2010[update], the population of Knollwood was 1,747.

The name "Knollwood" first became associated with the area in the early 20th century. The Chicago, North Shore and Milwaukee railway stop, located at the intersection of Rockland Road and Telegraph Road (now Waukegan Road), was named Creamer Corners. To the southwest of the station was a 248-acre property, consisting of two farms, owned by Mrs. Granger Farwell and Mr. A.C. Accord. This property was known as Knollwood Farm. In 1923, Knollwood Farm was purchased by a group of wealthy Chicago businessmen (Including Samuel Insull, Robert P. Lamont, Nathan William MacChesney and Thomas E. Wilson), who wished to turn the land into a country club. The following year, the Knollwood Country Club was founded, and the purchase was finalized in 1925. The community that sprang up around the club came to be known as Knollwood'

Knollwood's volunteer fire department was founded as the Rockland Fire Department and recognized by the state government in January 1947. Two years later, the department purchased their first fire engine, and a fire department building was constructed in 1951. In 1952, the Rockland Fire Department joined the Illinois Association of Fire Protection Districts, and changed its name to the Knollwood Fire Department. The original firehouse was replaced with a modern facility in the same location in 2002, with the new building opening the following year.

Show Regional Data

Population (female): 919

Median Age: 39.0 years

Cost of Living: March 2019 cost of living index in Knollwood: 102.9 (near average, U.S. average is 100)

Poverty (overall): Percentage of residents living in poverty in 2017: 5.1%

Sex Offenders:

Land Area:

Population Density:

Zip Codes:

Median Incomes:
      Estimated median household income in 2017: $85,895
      Estimated per capita income in 2017: $43,955
      Estimated median house or condo value in 2017: $262,600 Knollwood:$262,600IL:$195,300

Knollwood is bordered by the village of Lake Bluff to the north, northeast and southeast. To the south, the city of Lake Forest and to the west, the village of Green Oaks, and unincorporated Rondout.

(800) 221-4291