Soil tests that decide the system
Syracuse Septic Pros Perc Testing in Syracuse
Measuring how fast water moves through the soil and how deep the good soil goes, before anything is designed.
- Syracuse and ten towns within 20 miles
- Written price before any digging
- Licensed, insured local contractors
- Built around Onondaga County soils
Syracuse Septic Pros connects property owners around Syracuse with local engineers and excavators who run perc tests and deep hole soil tests. Every new or replacement septic design in New York starts here, and the result decides whether a lot takes a simple trench field, a raised system or something more engineered.
Skipping a $400 perc test before buying a lot can leave you owning ground that needs a $25,000 engineered system, or none at all, instead of the $8,000 field you budgeted for.
$395 to $1,000 for testing
Perc testing around Syracuse typically costs $395 to $1,000. A Central New York engineering firm publishes $395 for a percolation test with site evaluation, and a Syracuse excavator puts perc tests at $400 to $1,000 depending on the number of holes and whether a licensed engineer runs them. Design is a separate cost.
Get a price: (315) 922-5458When you need a perc test
- Buying a vacant lot you plan to build on
- Replacing a failed leach field in a new location
- Adding bedrooms, which can mean a bigger system
- A design professional has asked for site data
- A lot where neighbors have raised or mound systems
Two tests, two questions
The deep hole
A backhoe digs a test pit, often several feet deep, so the soil profile can be read. The evaluator looks for the seasonal high groundwater, which shows as grey mottling, and for rock or dense impermeable layers. New York's standard wants four feet of useable soil above those for a conventional field, and records whether the water table is perched, apparent or artesian.
The percolation test
Smaller holes are pre-soaked, then the drop in water level is timed. The result, in minutes per inch, tells the designer how much absorption area the site needs. Useable soil under the state standard percolates between one and sixty minutes per inch. Faster than one is too fast to treat; slower than sixty needs a different design.
What results look like around Syracuse
USDA soil data gives a preview. North of the city, the lake-plain silts and clays of Clay, Cicero and Lysander commonly show a saturated zone close to the surface, which a deep hole reveals as mottling within a couple of feet. South and west, the till of Onondaga, Camillus and Van Buren tends toward slow water movement, which shows up as slow perc times. In Manlius, shallow bedrock and gravelly outwash both appear, which can mean either too little soil or soil that drains too fast.
None of that replaces a test on your own lot. Soils change within a few hundred feet.
Not sure what the system needs? Describe what you are seeing and get a straight answer on what it usually takes.
Call (315) 922-5458Who can run it and who sees it
Because the results feed a design that must be prepared by a NYS licensed professional engineer or architect, tests are usually run or witnessed by that designer. In Madison County the public health department observes percolation and deep hole tests. In Onondaga County the results go into the design submitted for review, and for raised systems the stabilized fill is perc tested again before sign-off.
Test in the right season if you can. A deep hole dug in a dry August can miss a water table that is obvious in April, though the mottling usually tells the story either way.
Lot under contract, no soil data
Make the purchase conditional on a deep hole and perc test. Call to line up a designer and an excavator; the results decide what system you can build and what it will cost.
Call (315) 922-5458Questions people ask
How much is a perc test near Syracuse?
Typically $395 to $1,000. One Central New York engineer lists $395 with a site evaluation; excavators quote $400 to $1,000 by number of holes.
What is a passing perc rate in New York?
Useable soil percolates between one and sixty minutes per inch. Outside that range needs a different design.
What are the signs a lot may fail a perc test?
Standing water in spring, grey mottled soil close to the surface, rock near the surface, or neighbors with mound systems.
What is a deep hole test?
A test pit dug to read the soil profile, find the seasonal high groundwater and any rock or impermeable layer.
Can a perc test be done in winter?
Frozen ground makes it difficult. Spring and autumn are more common, and spring shows the water table best.
Often done together
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New septic installation
From the first test hole to the final inspection, a new septic system for a lot that has never had one.
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Mound and raised systems
Lifting the absorption field above ground that cannot treat wastewater on its own, built in fill that has to be placed and tested properly.
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Leach field replacement
When the soil under the old trenches has given up, a new field in the right place, built to the state standard.
Talk it through before anyone digs
Say what the house is doing, how old the system is and when the tank was last pumped. You will hear what the job usually involves, what it tends to cost, and whether it needs digging at all.
Call (315) 922-5458