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Best Well Water Testing in Ottawa, IL

Compare 8 local well water testing providers in Ottawa, IL. Verified listings with real contact info.

8 verified providers · Updated 2026-04-21

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1

Culligan of Ottawa

4.4 ★ (58 reviews)

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2

Ruby Home Inspection Services

4.2 ★ (10 reviews)

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3

Stuedemann Radon Resolutions

4.9 ★ (466 reviews)

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1

Culligan of Ottawa

4.4 (58 reviews)
413 W Jefferson St, Ottawa, IL 61350
Mon–Fri 8am–5pm · Sat 8am–12pm · Sun Closed
2

Ruby Home Inspection Services

4.2 (10 reviews)
210 W Prospect Ave, Ottawa, IL 61350
Mon–Sun 8am–10pm
3

Stuedemann Radon Resolutions

4.9 (466 reviews)
2864 E 2539th Rd, Marseilles, IL 61341
Open 24 Hours
4

Prairie State Water Systems Inc.

4.9 (55 reviews)
3281 E 28th Rd, Marseilles, IL 61341
Open 24 Hours
5

Great Water USA

4.8 (116 reviews)
1811 N Division St, Morris, IL 60450
Mon–Fri 8am–5pm · Sat 9am–12pm · Sun Closed
6

Plano Softener Services DBA: Water Wagon

4.8 (62 reviews)
104 E South St, Plano, IL 60545
Mon–Fri 8am–4:30pm · Sat 8am–12pm · Sun Closed
7

Johnson Water Conditioning

4.9 (105 reviews)
316 Illini Dr, Yorkville, IL 60560
Mon–Fri 7am–9pm · Sat 8am–6pm · Sun Closed
8

Culligan of Coal City

4.5 (33 reviews)
75 Chestnut St, Coal City, IL 60416
Mon–Fri 9am–5pm · Sat 8am–12pm · 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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