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Best Well Water Testing in Chicago, IL

Compare 23 local well water testing providers in Chicago, IL. Verified listings with real contact info.

23 verified providers · Updated 2026-04-21

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1

Prometric

3.6 ★ (127 reviews)

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2

Quest Diagnostics

3.4 ★ (156 reviews)

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3

Labcorp

2.4 ★ (179 reviews)

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1

Prometric

3.6 (127 reviews)
1 N LaSalle St # 2300, Chicago, IL 60602
Mon–Sat 7am–5pm · Sun Closed
2

Quest Diagnostics

3.4 (156 reviews)
111 N Wabash Ave STE 1514, Chicago, IL 60602
Mon–Fri 7am–4:30pm · Sat–Sun Closed
3

Labcorp

2.4 (179 reviews)
30 N Michigan Ave # 1410, Chicago, IL 60602
Mon–Fri 8am–4:30pm · Sat 8am–12pm · Sun Closed
4

Fast Mold Testing - Chicago

111 W Jackson Blvd suite 2300, Chicago, IL 60604
5

Environmental Consulting Group

5.0 (2 reviews)
411 S Wells St, Chicago, IL 60607
Mon–Fri 8am–5pm · Sat–Sun Closed
6

BioGenesis Analytical Laboratory

5.0 (1 reviews)
813 S Jefferson St, Chicago, IL 60607
Mon–Fri 8am–5pm · Sat–Sun Closed
7

Axion Analytical Labs & Training Institute

5.0 (22 reviews)
14 N Peoria St STE 100, Chicago, IL 60607
Mon–Fri 9am–9pm · Sat–Sun Closed
8

Illinois Environmental Restoration

5.0 (2 reviews)
875 N Michigan Ave, Chicago, IL 60611
Mon–Sat 8am–5pm · Sun 9am–5pm
9

Chicago Water Quality

5.0 (1 reviews)
1000 E Ohio St, Chicago, IL 60611
10

Sterling Labs (STAT Analysis)

4.3 (47 reviews)
2242 W Harrison St Suite 200, Chicago, IL 60612
Mon–Fri 8am–5pm · Sat–Sun Closed
11

Scientific Control Laboratories, Inc.

3.8 (4 reviews)
3158 S Kolin Ave, Chicago, IL 60623
12

Deibel Bioscience of Illinois, LLC

4.4 (9 reviews)
7120 N Ridgeway Ave, Lincolnwood, IL 60712
Mon–Fri 9am–5pm · Sat–Sun Closed
13

Flood Testing Laboratories Inc

4.5 (8 reviews)
1945 E 87th St, Chicago, IL 60617
Mon–Fri 7am–5pm · Sat–Sun Closed
14

REAL ENVIRONMENTAL SERVICES - La Grange Park

5.0 (2 reviews)
1006 Community Dr, La Grange Park, IL 60526
Mon–Sun 8am–8pm
15

Midwest Labs Testing Laboratories and Environmental Testing

6246 Joliet Rd, Countryside, IL 60525
Mon–Sun 12am–11:30pm
16

Enviro Test Perry Laboratories

4.8 (5 reviews)
638 Executive Dr, Willowbrook, IL 60527
Mon–Fri 9am–2pm · Sat–Sun Closed
17

Earthwise Environmental Inc.

3.5 (6 reviews)
777 N Edgewood Ave, Wood Dale, IL 60191
Mon–Fri 7:30am–5pm · Sat–Sun Closed
18

Sterling Labs (Environmental Monitoring & Technologies)

4.0 (17 reviews)
509 N 3rd Ave, Des Plaines, IL 60016
Mon–Fri 7am–7pm · Sat–Sun 9am–3pm
19

Aerobiology Laboratory - Downers Grove, IL

5.0 (2 reviews)
100 22nd St #115, Lombard, IL 60148
Mon–Fri 8:30am–5:30pm · Sat 9am–3pm · Sun Closed
20

Teklab Inc

5.0 (1 reviews)
1319 Butterfield Rd # 502, Downers Grove, IL 60515
Mon–Fri 8am–5pm · Sat–Sun Closed
21

RainSoft Water Treatment of Chicago

4.3 (112 reviews)
1313 S Finley Rd, Lombard, IL 60148
Mon–Fri 9am–7pm · Sat 9am–1pm · Sun Closed
22

Accugen Laboratories Inc

4.4 (14 reviews)
2121 W E Army Trail Rd, Addison, IL 60101
23

Eurofins Environment Testing- Chicago

5.0 (2 reviews)
18410 Crossing Dr Suite E, Tinley Park, IL 60487
Mon–Fri 8am–5pm · Sat–Sun Closed

Frequently Asked Questions

What should I test my well water for in Illinois?

The Illinois Department of Public Health (IDPH) and Illinois EPA (IEPA) recommend testing annually for coliform bacteria and nitrates at minimum. Given Illinois-specific contamination history, also test for: radium (naturally occurring in deep Cambrian-Ordovician sandstone aquifers across northern Illinois), nitrates and atrazine from agricultural runoff, lead, arsenic, volatile organic compounds (VOCs), iron, manganese, and pH. Check with your state environmental agency for contaminants of concern in your region.

How often should well water be tested in Illinois?

Test annually for bacteria and nitrates. Comprehensive testing every 2-3 years is recommended. Test immediately after any flooding event, if you notice changes in taste, odor, or color, or if you receive a notice about contamination in your area from local authorities.

Where can I get my well water tested in Illinois?

Use a state-certified laboratory. Your local board of health, state university cooperative extension office, or environmental watch program can provide sampling kits and recommend certified labs. Some well service companies also partner with certified labs.

How much does well water testing cost in Illinois?

Basic bacterial and nitrate testing costs $75-$150. A standard potable water panel (bacteria, nitrates, pH, iron, manganese, hardness) costs $150-$300. Extended testing for specific contaminants adds $150-$300 per sample. A comprehensive panel including multiple contaminant types costs $400-$700.

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