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Best Well Water Testing in Oswego, NY

Compare 7 local well water testing providers in Oswego. Verified listings with real contact info.

7 verified providers · Updated 2026-04-19

Quick Compare

1

CountryMax - Oswego

4.2 ★ (148 reviews)

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2

Lakeshore Testing

5.0 ★ (11 reviews)

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3

Caster Well Drilling and Water Conditioning

4.9 ★ (331 reviews)

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1

CountryMax - Oswego

4.2 (148 reviews)
276 NY 104, Oswego, NY 13126
Mon–Sat 8am–7pm · Sun 8am–6pm
2

Lakeshore Testing

5.0 (11 reviews)
148 Phinney Rd, Fulton, NY 13069
Mon–Fri 8am–5pm · Sat–Sun Closed
3

Caster Well Drilling and Water Conditioning

4.9 (331 reviews)
140 Phinney Rd, Hannibal, NY 13069
Mon–Fri 8am–5pm · Sat–Sun Closed
4

CNY Pumps & Service

5.0 (39 reviews)
390 Lake Shore Rd, Fulton, NY 13069
Mon–Thu 7am–6pm · Fri 7am–5pm · Sat Closed · Sun 7am–6pm
5

Rockwell Indoor Environmental

4.8 (46 reviews)
8430 Oswego Rd #302, Liverpool, NY 13090
Open 24 Hours
6

Aqua Energie LLC

4.0 (1 reviews)
7830 Restmoor Dr, Baldwinsville, NY 13027
Mon–Fri 9am–5pm · Sat–Sun Closed
7

SanAir Technologies Laboratory

4.8 (4 reviews)
3247 Vickery Rd, Syracuse, NY 13212
Mon–Fri 8am–5pm · Sat–Sun Closed

Frequently Asked Questions

What should I test my well water for in New York?

NYSDOH recommends testing annually for coliform bacteria and nitrates at minimum. Given regional contamination history, also test for: PFAS (including PFOA and PFOS where plumes are known), 1,4-dioxane, and (especially on Long Island) saltwater intrusion and legacy industrial solvents, lead, arsenic, volatile organic compounds (VOCs), iron, manganese, and pH. Check with NYSDOH or NYSDEC for contaminants of concern in your region.

How often should well water be tested in New York?

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 New York?

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 New York?

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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