Tiverton buyers, whose experience was reported by EastBayRI in August, closed in March and had the well tested while they were moving in. Then a letter arrived from the Rhode Island Department of Environmental Management. When DEM sampled the well later, the result came back above the state's 20 parts per trillion benchmark.
The Rhode Island Department of Health says plainly that PFAS "is not currently included on the list of tests required by state law" when a home served by a well changes hands. In most of the state that's a footnote. In the part of north and central Tiverton where DEM is testing wells this fall, it's the most important line in the paperwork.
What the Law Requires a Tiverton Well Sale to Test
Rhode Island requires a water test before a home with a private well is sold or transferred. Under the state's private-water regulation, the required panel covers these items:
- Total coliform and fecal or E. coli coliform
- Nitrate and nitrite
- Lead, iron, manganese, fluoride, and chloride
- Alkalinity, hardness, pH, sulfate, specific conductance, total dissolved solids, and turbidity
- Regulated volatile organic compounds and MTBE
That's a careful list, and it was built for the problems Rhode Island wells have had for decades: bacteria, septic influence, old plumbing, fuel compounds. PFAS isn't on it. The regulation does have one opening. If earlier testing found other constituents, the transfer test has to cover those too. So a well with a PFAS result already on record gets PFAS retested at sale. A well that was never tested for PFAS doesn't, and a clean standard panel says nothing either way about it.
RIDOH recommends PFAS testing in two cases: when a well is near a potential source, or when a state agency such as DEM advises it. In Tiverton, that advice now covers a defined set of streets.
Forty-One Wells in August, 102 by Late September
DEM's Tiverton investigation area currently lists three corridors:
- Crandall Road and its side roads between Bulgarmarsh Road and Pershing Avenue
- Bulgarmarsh Road and its side roads between Indian Hill Road and Luke Drive
- Stafford Road between Bulgarmarsh Road and Bliss Four Corners Congregational Church
The numbers inside that area have moved fast. On August 25, 2026, Uprise RI reported that state officials had found 41 private wells above 20 ppt out of roughly 120 tests. Six of them were above 1,600 ppt, a level the town said household filtration can't handle. The Town of Tiverton's PFAS update dated September 26 put the count at 102 contaminated private wells as of September 25. The research found no newer official count through October 12.
Two details from that same update matter more to a buyer than the total. DEM is continuing "step-out" testing around the impacted area "for the foreseeable future." It has also begun retesting some wells that first came back safe or below 20 ppt. The town has said it is concerned the retests could confuse residents or undermine their confidence in earlier results, and DEM is working with the town on public information explaining why the retests are happening. So a "below 20" letter from earlier this summer is a real document with a date on it. It may not be the last word on that well.
The source hasn't been confirmed. According to EastBayRI's September 29 report, officials have started a well-depth test at the Crandall Road Fire Station 3 to find out whether it's the source. The town's own update describes the field investigation as still in planning.
Ten Days on the Contract, Ten to Fifteen at the Lab
Rhode Island law says a purchase-and-sale agreement gives the buyer 10 days to arrange well testing before being obligated, unless the parties agree to a different period. The buyer pays for sampling, analysis, and a qualified potability opinion unless the parties agree otherwise. RIDOH says lab results usually take 10 to 15 business days.
Lay those numbers side by side and the window closes before a typical result comes back. A PFAS test is an extra order on top of the required panel, and it's harder to sample. RIDOH warns that ice packs, permanent markers, and even some clothing can contaminate a PFAS sample. The Town of Tiverton lists the authorized State Health Laboratory test at $200 per sample. RIDOH lists Rhode Island Analytical in Warwick and ESS Laboratory in Cranston among the certified labs currently accepting private-well PFAS samples.
The market isn't giving anyone extra time, either. Single-family homes in Tiverton averaged 47 days on market in August 2026, down from 75 in August 2025, and the median sale price for the month was $555,000, up from $470,000, according to Rhode Island REALTORS® Statewide MLS data. Faster sales mean less room on the calendar for a test the law doesn't require.
The statute lets a buyer void the agreement in writing before closing in three cases: the contract omits the testing period, previous results aren't provided, or results exceed applicable state regulatory limits. RIDOH describes Rhode Island's 20 ppt PFAS6 limit as an enforceable maximum for public water systems. For private wells, the same 20 ppt appears as a treatment recommendation. How that distinction applies to a particular contract is a question for the parties and their attorneys.
What the Seller's Paperwork Can Carry
The seller's side of the file depends on what already exists. The regulation requires the seller or a designee to make available any water-quality reports and supporting data in their possession from the prior 10 years. The Rhode Island REALTORS® seller disclosure form asks whether water is public or private, whether a well-inspection certificate is available, whether there are known water-quality problems, and whether treatment systems are installed or rented. The version reviewed for this piece is marked Rev 05/19, and it has no PFAS-specific checkbox. Rhode Island's disclosure statute requires sellers to disclose known deficient conditions. It doesn't create a duty to go looking for new ones.
In the investigation corridors, that structure works in a specific way. Where DEM has already sampled a well, a result probably exists and becomes part of the record the seller holds. Where nobody has tested, the file can be honest and complete and still contain no PFAS information at all. The March sale described above closed before DEM's letter arrived. EastBayRI's reporting doesn't say what anyone knew about PFAS at the time of that sale.
A filtration system on the disclosure form is now a Tiverton-specific detail too. DEM told the town it planned to ramp up installations to about 10 a week, and each installation requires its own water test. The town has also warned about unauthorized companies offering PFAS testing or filtration at higher-than-necessary prices, and it points residents to state-authorized providers.
Where Public Water Changes the Question
Tiverton isn't one water system, so the PFAS question isn't the same on every lot. The North Tiverton Fire District runs a public system serving about 7,600 residents. The Stone Bridge Fire District draws from Stafford Pond, and the town reports its March 2026 PFAS6 result at 5 ppt. For homes on private wells, location relative to DEM's corridors and to future water lines is now part of evaluating the property.
Here's where the moving pieces stood on October 12, 2026:
| Item | Status as of October 12, 2026 |
|---|---|
| Contaminated private wells | 102 above 20 ppt as of September 25; step-out testing and retests continuing |
| Phase 1 water line | $1 million USDA ECWAG grant to North Tiverton Fire District; bids were due October 1; installation targeted by end of November, weather and bidding permitting |
| Who Phase 1 serves | Roughly seven households whose wells were too contaminated for filtration |
| Crandall Road traffic | Possible single-lane periods during construction, with peak hours and school bus routes being planned around |
| Development moratorium | Drafts requested September 28 for areas without public water; nothing adopted |
| Crandall Commons, Bulgarmarsh Road | Planning Board hearing set for November 10, with new testimony limited to PFAS |
| Source | Crandall Road Fire Station 3 under investigation; not confirmed |
The moratorium discussion matters most to land buyers. Per EastBayRI, Council President John Edwards proposed trying a 120-day pause in areas not served by public water. Town Solicitor Michael Marcello said he would draft several versions, including a townwide option and one targeted to DEM's contamination maps. He also said the town would need expert testimony, "facts, not an opinion," to support one. Uprise RI reported the solicitor's warning that a broad moratorium could face legal problems, and that state law exempts low- and moderate-income housing projects. The council's next regular meeting is Tuesday, October 13.
Short Answers
Does every Tiverton home need a PFAS test to sell? No statewide rule requires one. RIDOH says PFAS isn't on the required transfer list, though owners and buyers can order it. Under the state regulation, a prior PFAS detection brings PFAS into the transfer test.
How can someone check whether a property sits in a recommended-testing area? RIDOH keeps an online map tool showing areas where PFAS or other special testing is recommended. DEM contacts owners directly by mail or in person when a well falls inside one of its sampling areas.
Is the 102 figure final? No. It's DEM's count as of September 25, 2026, and testing and retesting are still going on.
Cherry Arnold represents sellers and buyers of Tiverton properties on private wells, timing water testing alongside the contract and keeping the record complete and clear. Schedule a private consultation to talk through a well-served property before the contract clock starts.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.
