Suffolk · Great River
Great River NY voted no in 2019. The tank is still this lot.
Great River, in the Town of Islip, voted no on sewers in 2019. Oakdale later passed about 88 percent when grants paid. Those are two hamlets. A no vote is not a well report. If this kitchen still drinks a well, mail a lab kit.
Updated 2026-09-11 · Pipedeck · Great River, NY
| Great River, 2019 | Oakdale, Dec 2025 | |
|---|---|---|
| Hamlet vote | No | Yes, about 88 percent, grants paid |
| What it is | Stayed on-site | Sewer construction when the grant is real |
| County split | Suffolk still about 26 percent sewered / 74 percent unsewered | |
| If this kitchen drinks a well | Mail-in lab kit | Mail-in lab kit |
| Not this hop | Stealing Oakdale's 88 percent, a pitcher, or Calverton site numbers | |
What did Great River actually refuse in 2019?
Great River is a hamlet in the Town of Islip, Suffolk, along the Connetquot. In 2019 the hamlet voted no on a sewer proposition. That no is the meter on this URL. It is a named referendum with a named result. It is not a score for every tank lid in the grass, and it is not a claim that Suffolk flipped from tanks to pipes — or the other way.
Suffolk is still about 26 percent sewered. About 74 percent of homes are not. The county still talks about 360,000 on-site systems — septic tanks and cesspools — sitting on the same sand a kettle later drinks. Nassau is about 85 percent sewered. Great River did not rewrite that county split by voting no. A later yes in another Islip hamlet did not rewrite it either. The sand under both counties is a sole-source aquifer, designated in 1978. There is no backup drinking water. A referendum calendar does not change that.
This page is the 2019 no. The Town of Islip page is mixed wells on boom-care ranches. Do not treat those as one URL. Do not treat a South Shore no as a Nassau sewer cartoon. Do not treat it as a freeze-town housing story. Brookhaven and Hempstead Town took the post-2020 people. Oyster Bay, Glen Cove, and Long Beach sat below 2020. That meter lives on housing and leave. Great River's fact is the tank that stayed.
Oakdale's later yes is a different hamlet
Oakdale is also in the Town of Islip. In December 2025 that hamlet passed a sewer vote at about 88 percent when grants paid for construction. Six years later. A different street. The opposite result. Do not splice the two into one “Islip sewered” sentence. Oakdale's yes does not put a lateral on a Great River lot. Great River's no does not cancel Oakdale's later yes. Two hamlet calendars. Two outcomes. The 88 percent lives on the Oakdale page. This URL keeps the 2019 no so a Great River search does not steal that number.
Until later connections actually land, Suffolk is still about 74 percent unsewered. A no on this creek does not rewrite a well in the next yard. A yes on Oakdale's block does not sewer Brentwood. Unsewered is not the same as a private well. Plenty of lots pay a water-district bill and still send bathroom water into a tank. Plenty of lots run a well and a tank on the same sand. Those are two setups. The vote named the tank. The kit names the glass. Keep them in that order.
A no vote is the tank, not a lab report
A sewer ballot is wastewater leaving the lot — or staying in a tank. A well kit is drinking water at the kitchen tap. PFAS and 1,4-dioxane were not on the 2019 ballot. New York limits two common PFAS — PFOA and PFOS — at 10 parts per trillion in drinking water. You will not taste that. You will not smell it. A clear glass after a no vote does not mean the well is clear of it.
Suffolk still sells a $100 private-well test. Call 631-852-5810 if you want that product. It is a real lab. It is cheap. It looks at bacteria, nitrates, and the metals people have asked the county about for years. It does not look for PFAS. It does not look for 1,4-dioxane. This site is not that office. Keep their test if you want their check. Mail a kit if this Great River kitchen still drinks a well and you want the chemicals New York now limits at the tap.
From 2016 through 2022, Suffolk sampled private wells. About 47 percent of those wells showed some PFAS. Two hundred two of them were over drinking-water standards. That is the wells they sampled. It is not a score for Great River, and it is not a census of the county plan figure of about 45,000 private wells. Nassau has on the order of a few hundred. This hamlet is Suffolk. Your kitchen still needs its own bottles if it is a well.
A $12 hardware-store strip is even narrower. It is built for chlorine, hardness, and a few metals you match to a color chart. It will not find PFAS. It will not find 1,4-dioxane. A water softener treats hardness. It does not close this gap. A fridge pitcher that only says it filters water is usually taste. 1,4-dioxane needs reverse osmosis. A pitcher is a refund for that chemical.
If this Great River kitchen still drinks a well
Walk the backyard. A low round cap in the grass is the usual sign. A pump and a pressure tank in the basement, or in a small well house, are the other tell. If a water-district bill never shows up, treat the kitchen as a well until a lab says otherwise. Mixed streets exist inside the Town of Islip. A neighbor's hydrant is not your pipe. A 2019 no on your block is not a water-district bill, and it is not a lab result.
Order the kit. Use the cold tap you actually drink from. Fill the bottles the way the slip says. Do not wash them with soap. Do not sample the hot side. Do not fill from a garden hose or an outdoor faucet you never use for coffee. Pack them the same day if you can. One kit covers the house. Do not send bottles to 65 Cedar Street in Kings Park. That mailbox is the publisher. It is not a lab drop.
If PFAS is high, shop a unit tested for those chemicals. The marks are NSF 53 and P473. Reverse osmosis also covers them. If 1,4-dioxane is high, reverse osmosis — not a jug. Test first, then buy. The shopping lists live on PFAS filters and 1,4-dioxane reverse osmosis. Cartridges are a later bill on replacements. Do not copy Calverton site numbers — 14.9 parts per billion dioxane, 7,580 parts per trillion of one PFAS — onto a Great River tap. Those are a named plume. They are why a nearby well still gets a test. They are not this kitchen. Do not copy Mattituck's 20-of-38 onto this creek either.
Grab bars in a high tub are the aging page if the ranch is staying. People born 1946 to 1964 are 61 to 79 in 2025. That care ring is Babylon, Huntington, and Islip. It is not this vote. The Town of Islip walkthrough of mixed streets is the Islip page. If the decision is already to leave, you need a truck, not a second set of bottles and not a lateral this hamlet already refused.
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Common questions
Did Great River vote for sewers in 2019?
No. Great River, in the Town of Islip, voted no in 2019. That no is this URL. It did not sewer the hamlet and it did not rewrite Suffolk.
Did Oakdale's later yes sewer Great River?
No. Oakdale passed about 88 percent in December 2025 when grants paid for construction. That is a different hamlet and a different year. Do not splice the two votes.
Does a no on sewers replace a well kit?
No. A sewer ballot is the tank. A well kit is the kitchen tap. If this Great River kitchen still drinks a private well, mail a lab kit. A 2019 no does not look for PFAS or 1,4-dioxane.
Is every Great River kitchen on a well?
No. Some lots already pay a water-district bill and still sit on a tank. Some run a well and a tank on the same sand. No water bill plus a cap in the grass usually means a well.
Does Suffolk's $100 well test look for PFAS?
No. Call 631-852-5810 if you want that cheaper county check. It looks at different things. A mail-in lab kit is the one that looks for PFAS and 1,4-dioxane. This site is not that office.
If the Great River well report is high, what do I buy?
Match the chemical. NSF 53 or P473, or reverse osmosis, for PFAS. Reverse osmosis for 1,4-dioxane. A fridge pitcher is not that filter. Test first, then buy.
Is this the Oakdale page or the Islip aging page?
No. Oakdale keeps the 2025 yes. Islip is mixed wells on boom-care ranches. This URL is the 2019 no, then the kitchen tap if it is a well.
Can I copy Calverton numbers onto this Great River tap?
No. Calverton site figures are a named plume. They are not a reading for a Connetquot hamlet. If you drink a well here, sample this kitchen.
Great River sewer vote no, 2019; Oakdale sewer vote ~88 percent, December 2025, grants paid; Suffolk ~26 percent sewered / ~74 percent unsewered / ~360,000 on-site systems; Nassau ~85 percent sewered; Suffolk well sampling 2016–2022; county well-test line 631-852-5810. Pipedeck is not that office.