Buying rural · Ulster & Dutchess
What should you test before buying a house with a well in Ulster or Dutchess County?
In most of both counties, nothing requires anyone to test a well when a house sells, so the test happens only if you ask for it. Three Dutchess towns are the exception. Here is what the state Health Department says to test for, the three towns with their own rules, what the seller's disclosure does and doesn't tell you, and the free PFAS testing New York is offering in both counties right now.
By Ryan Rooney · Published 27 October 2026 · Rules checked against their sources 27 October 2026
Does New York require a well test when you buy a house?
No. No state law requires a water test when a house on a private well is sold. A bill that would make one a condition of every such sale, the "private well testing act" (S9622), was referred to the Senate's Environmental Conservation Committee on 30 March 2026 and is still there as of 27 October 2026. Until something passes, the test happens because the buyer writes it into the contract.
Which towns here require a test before a sale?
Three, all in Dutchess: East Fishkill, Fishkill and Wappinger, according to the county Health Department. I found nothing in Ulster County's Sanitary Code that requires one, and I haven't found an Ulster town with its own rule. Check the code of the town you're buying in.
What should the test include?
The state Health Department's starting list for a well is coliform bacteria, nitrate, nitrite, lead, arsenic, iron, manganese, sodium, chloride, sulfate, hardness, alkalinity, pH and turbidity, with radon, uranium, radium, methane, barium and fluoride added where they're a local concern. Use a lab certified by the state's ELAP program. Ask for a flow test too, because good water doesn't help if the well can't keep up.
Is there free well testing in Ulster and Dutchess?
For PFAS, yes. New York's private well PFAS pilot is taking testing applications from both counties while funds last, and offers rebates of up to $5,000 toward whole-house treatment if PFOA or PFOS comes back at or above 10 parts per trillion. You have to own or rent the house to apply, so it's something to do after closing.
What to test, and when the state says to
The state Health Department doesn't publish a separate list for a purchase. Its fact sheet on residential water quality testing gives the tests for a new well, what to repeat every year, and what to add depending on where you are. For a house you're buying, I treat the new-well list as the baseline, because you usually have no idea what has been tested before. That's my judgment, not a rule.
| Test | What it covers | When |
|---|---|---|
| Baseline | Coliform bacteria, nitrate, nitrite, lead, arsenic, iron, manganese, sodium, chloride, sulfate, hardness, alkalinity, pH, turbidity | The state's list for a new well before anyone drinks from it. My baseline for a purchase. |
| Every year | Coliform bacteria | The state recommends it annually after the first round. |
| Where it's a local concern | Radon, uranium, radium, methane, barium, fluoride | These occur naturally by region. Ask the county Health Department which apply. |
| Older plumbing or corrosive water | Lead and copper | The state says older homes, or water with a pH below 6.5, should be tested for both. |
| Something nearby | Depends on the source | The state suggests extra tests near oil storage, gas stations, junkyards, landfills, industry or farms. |
| PFAS | PFOA and PFOS | Free through the state pilot below, once you own the house. |
Two practical points. The state says samples should go to a lab certified under its Environmental Laboratory Approval Program (ELAP), and Ulster County's Health Department posts a list of certified labs. And I'd have the lab or your inspector take the sample, rather than accept one the seller drew.
Test the flow, not just the water
A house can pass every lab test and still run short in August. Nothing in state or county rules sets a minimum yield for an existing house. The closest yardstick I know is Dutchess County's Sanitary Code, which says wells for new houses in a realty subdivision should produce 5 gallons a minute. Ask your inspector or a well contractor for a flow test, including how fast the well recovers, and ask the seller for any well records. Registered well drillers have to file a completion report for each new well with the state Department of Environmental Conservation and give the owner a copy, and DEC's online well data includes depth and yield. An older well may predate that, so ask.
While you're at it, find the septic. State well standards keep an absorption field at least 100 feet from a well, and 200 feet in coarse gravel or where the field sits uphill in the well's drainage path. A leach field closer than that is a reason to test more, not less. The county rules are on my Ulster and Dutchess septic pages.
The three Dutchess towns that require a test
East Fishkill and Wappinger both adopted mandatory testing in 2007, and I read both laws. The county lists Fishkill as a third. I couldn't find Fishkill's law, so confirm its details with the town.
| Town | Applies to | Who pays | If it's missing |
|---|---|---|---|
| Wappinger Local Law 8 of 2007, Chapter 234, Article XII | Any sale or exchange of a one- or two-family house on a private well. Refinances are exempt. A result is good for 36 months. | The buyer, under the law | The Building Department withholds its searches and certificate of occupancy reports until results are filed. Fine of $250. |
| East Fishkill Chapter 189, Local Law 4 of 2007 | Any sale or exchange of a one- or two-family house, and a new house before its first certificate of occupancy. A result is good for 36 months. | Left to the contract | The same hold on Building Department records. Fines up to $500, or a civil penalty up to $1,000. |
| Fishkill | Listed by the county as requiring a test. Details not confirmed. | Not confirmed | Ask the town: (845) 831-7800 |
In Wappinger, a state-certified lab collects the sample and runs the tests, and the results go to both parties, the Building Department and the county. Two things follow from these laws. First, the county publishes the results filed under them on its well test results site, listed by town with the street address, so if the house is in one of these three towns, look it up before you make an offer. Second, a result under 36 months old satisfies the town. It may not satisfy your lender, and it can't tell you what has changed since.
Ulster County
Ulster's Sanitary Code deals with wells when they're drilled: a new well needs a county permit, and the contractor has to be registered with both the state Department of Environmental Conservation and the county. I found nothing in it that requires a test when a house sells. So in Ulster the test is entirely up to you, which is the reason to write it into the contract.
What the seller's disclosure tells you
New York's Property Condition Disclosure Statement asks the seller what the water source is and whether the water quality or flow rate has been tested. "No" and "Unknown" are common answers, and neither tells you anything about the water. If the answer is yes, ask for the report itself: the lab, the date and which tests it ran. A bacteria-only test from three years ago is not a full panel.
If you're using a mortgage
Lenders can set their own conditions for a house on a well, and FHA, VA and USDA loans each have well rules of their own. Ask your loan officer at application whether your loan needs a water test, which tests, who has to take the sample and how recent it has to be. Then order one test that satisfies the lender, the town if you're in one of the three Dutchess towns, and you.
Put it in the contract
In New York the attorneys write the contract, and the time to ask for a water test is before you sign. Ask your attorney to make the deal subject to a satisfactory water quality and flow test within a set number of days, and to spell out what happens if the results come back bad: the seller treats it, credits you, or you can walk away. In East Fishkill the law leaves who pays to the contract, so settle that there too.
PFAS: free testing, and up to $5,000 toward treatment
The state Health Department's Private Well PFAS Testing and Mitigation Rebate Pilot Program is accepting testing applications from Ulster, Dutchess, Orange, Putnam, Suffolk and Westchester counties, as funds allow. It may pause when funding runs short.
- The test is free and covers PFOA and PFOS. Results and an eligibility decision take about two to six weeks.
- You qualify for a rebate if either comes back at or above 10 parts per trillion, New York's standard for public water.
- Rebates are capped at $5,000 for a whole-house treatment system, $1,000 for treatment at individual taps when a whole-house system isn't feasible, and $10,000 to connect to an existing public water system. Maintenance and sales tax aren't covered.
- The clock: treatment has to be done, and the rebate applied for, within six months of the eligibility letter. For an in-home system, a test afterward has to show both below 10 parts per trillion.
- Who can apply: owners, and renters with the owner's signed acknowledgment. Not a house you're only under contract on, and not one that already has a whole-house PFAS system installed outside the program.
Details and the application are on the state's program page.
Who to call
| Office | Covers | Contact |
|---|---|---|
| Dutchess County DBCH Environmental Health Services | Wells and septic, countywide, and the published test results | (845) 486-3404, ehs@ |
| Ulster County Department of Health, Environmental Health Services | Well permits, septic, and the certified lab list | (845) 340-3010, 239 Golden Hill Lane, Kingston |
| Town of Fishkill | Its well testing rule | (845) 831-7800, 807 Route 52, Fishkill |
| Your town's building department | Whether the town has its own rule, and what it holds back until results are filed | Start here in East Fishkill and Wappinger. |
How this page stays current. The things most likely to change are the PFAS pilot, which can pause when funds run low, and the private well testing bill in the state Senate. I'll check both, update this page when either changes, and log it here rather than editing silently.
Change log
27 October 2026: page published.
Buying land instead? Start with what to check before buying land in Ulster County.
Send me the address
I'll tell you whether the town requires a well test, look up any result the county has published for the house, and tell you what to ask for before you're under contract. I don't test water. This tells you what to order.
Ryan Rooney is a Licensed Real Estate Salesperson with Stevens Real Estate at eXp Realty, serving Ulster County and Dutchess County, New York. Born and raised in New Paltz. (845) 447-9274 · rrooney@stevensre.com
Sources, all checked 27 October 2026: New York State Department of Health, "Individual Water Supply Wells, Fact Sheet #3" on recommended residential water quality testing (revised July 2024); New York State Department of Health, Private Well PFAS Testing and Mitigation Rebate Pilot Program (page revised October 2026); New York State Senate, S9622, the private well testing act, status as of 27 October 2026; Town of Wappinger Code, Chapter 234, Article XII (Local Law 8 of 2007); Town of East Fishkill Code, Chapter 189 (Local Law 4 of 2007); Dutchess County Department of Behavioral and Community Health, private well testing page and published well test results; Dutchess County Sanitary Code (effective 15 December 2022), §11.12; Ulster County Sanitary Code, Article V; New York State Property Condition Disclosure Statement. Septic setbacks are from 10 NYCRR Appendix 5-B, as on my septic pages. This page reports what the public record shows. It is not legal, environmental or lending advice. Confirm requirements with the town, the county Health Department and your lender before relying on them.