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Best Perc Test in Riverhead, NY

Compare 4 local perc test providers in Riverhead. Verified listings with real contact info.

4 verified providers · Updated 2026-04-19

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1

Suffolk County Soil Evaluations

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2

CMM Sitework

4.7 ★ (15 reviews)

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3

Eastern Environmental Solutions, Inc

4.6 ★ (35 reviews)

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1

Suffolk County Soil Evaluations

Fox Run Ln, Riverhead, NY 11901
Open 24 Hours
2

CMM Sitework

4.7 (15 reviews)
1021 Flanders Rd Suite A, Flanders, NY 11901
Mon–Fri 8am–5pm · Sat–Sun Closed
3

Eastern Environmental Solutions, Inc

4.6 (35 reviews)
258 Line Rd, Manorville, NY 11949
Open 24 Hours
4

Clear River Environmental

4.7 (180 reviews)
847 11th St, Ronkonkoma, NY 11779
Mon–Sun 7am–10pm

Frequently Asked Questions

What is a perc test and why do I need one in New York?

A perc test (percolation test) measures how quickly water drains through soil. It is required before installing any new septic system and is conducted under the oversight of your local board of health. State environmental regulations govern the soil evaluation and percolation testing process.

How much does a perc test cost in New York?

A perc test typically costs $500 to $1,500, including soil profile evaluation. Municipal fees for health officer oversight add $100-$400. Total costs vary based on regional regulatory requirements and professional standards.

What happens if my property fails the perc test in New York?

If conventional perc test results do not meet state standards, you may be able to install an alternative system (mound system, drip irrigation, FAST unit) if site conditions allow. In densely developed areas, failing lots may have no viable septic option, requiring connection to public sewer if available.

Who can perform a perc test in New York?

Soil evaluations and perc tests must be conducted by a New York-licensed Professional Engineer (PE), Licensed Professional Geologist (PG), or other qualified professional approved by your local board of health. The evaluation must be witnessed by a municipal health officer.

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