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Best Well Water Testing in Riverhead, NY

Compare 15 local well water testing providers in Riverhead. Verified listings with real contact info.

15 verified providers · Updated 2026-04-19

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1

Casola Well Drillers Inc.

3.9 ★ (26 reviews)

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2

Eastern Environmental Solutions, Inc

4.6 ★ (35 reviews)

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3

Freedom Mobile Lab/Phlebotomy, Freedom Environmental Testing & Consulting

5.0 ★ (73 reviews)

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1

Casola Well Drillers Inc.

3.9 (26 reviews)
600 Burman Blvd, Calverton, NY 11933
Mon–Sat 8am–4:30pm · Sun Closed
2

Eastern Environmental Solutions, Inc

4.6 (35 reviews)
258 Line Rd, Manorville, NY 11949
Open 24 Hours
3

Freedom Mobile Lab/Phlebotomy, Freedom Environmental Testing & Consulting

5.0 (73 reviews)
290 Montauk Hwy #286, Moriches, NY 11955
Open 24 Hours
4

Casablanca Environmental & Building Diagnostics

5.0 (8 reviews)
5 Raynor Rd, Southampton, NY 11968
Mon–Sat 7am–7pm · Sun Closed
5

Goldman Water Testing

4.2 (5 reviews)
46950 County Rd 48, Southold, NY 11971
Mon–Fri 8am–4pm · Sat–Sun Closed
6

Mermaid Water Solutions

4.7 (13 reviews)
46950 County Rd 48, Southold, NY 11971
Mon–Fri 8am–4pm · Sat–Sun Closed
7

Air Quality Insights, LLC

4.9 (46 reviews)
5 Saranac St, Brookhaven, NY 11719
Mon–Fri 8am–6pm · Sat 8am–12pm · Sun Closed
8

HBH - Healthy Buildings & Homes

5.0 (78 reviews)
116 West Ave, Patchogue, NY 11772
Open 24 Hours
9

Long Island Analytical Laboratories, Inc.

5.0 (8 reviews)
110 Colin Dr, Holbrook, NY 11741
Mon–Fri 9am–5:30pm · Sat–Sun Closed
10

Aqua Doctor

5.0 (146 reviews)
1347 Lincoln Ave Unit 8, Holbrook, NY 11741
Mon–Fri 7:30am–5pm · Sat–Sun Closed
11

Maximum Environmental Management

4.8 (6 reviews)
1170 Lincoln Ave # 4, Holbrook, NY 11741
Mon–Sun 8am–6pm
12

RNEnvirontmental

4.0 (2 reviews)
39 Bucks Path, East Hampton, NY 11937
Mon–Sun 9am–6pm
13

Environmental Consulting Labs

4.8 (5 reviews)
1005 Boston Post Rd, Madison, CT 06443
Mon–Fri 9am–5pm · Sat–Sun Closed
14

Water-Flo, Inc.

4.9 (204 reviews)
2 Nod Pl Unit 4, Clinton, CT 06413
Mon–Fri 8am–4pm · Sat–Sun Closed
15

RWA Lab Services

5.0 (2 reviews)
90 Sargent Dr, New Haven, CT 06511
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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