The 8 Worst Water Utilities in NY, NJ & CT in 2026 (And What’s Actually in Their Water)
If you work in an office, school, or facility anywhere within roughly 100 miles of downtown Manhattan, your water is being delivered by one of about 220 community water systems. They are not all the same. Some draw from protected upstate watersheds. Others draw from Magothy aquifer wells sitting downgradient of decades-old industrial sites. The difference shows up in the numbers each utility is federally required to publish every year.
We ran those numbers. Across 234 community water systems serving more than 1,100 zip codes spanning the New York metro area, Long Island, the lower Hudson Valley, northern and central New Jersey, the Farmington Valley and southern Connecticut, eastern Pennsylvania (Lehigh Valley and the Poconos), and the Jersey Shore, we scored every reported contaminant against the strictest enforceable limit that applies (state MCL, federal MCL, or EPA Action Level), with extra weight for contaminants that have no safe level of exposure (PFAS, lead, 1,4-dioxane). Here is what came out at the top of the list, and what every facility manager on those lines needs to know.
One important caveat upfront: several of the utilities below operate multiple wells or treatment plants, and the worst contaminant reading reported in a CCR may not apply uniformly to every zip the utility serves. We are reporting the headline number from each utility’s own published CCR. For a zip-specific lookup, see water.hydr8.us.
How We Ranked the Utilities
Every public community water system has to publish a Consumer Confidence Report (CCR) each year under the Safe Drinking Water Act. CCRs report the highest detected value (or running annual average) for every contaminant the utility is required to monitor. Those numbers are public-domain disclosures, asserted by the utility itself.
For each utility we:
- Pulled every reported detection from the most recent CCR.
- Compared each detection to the strictest enforceable limit (state MCL where one exists, otherwise federal MCL or Action Level).
- Scored exceedances quadratically, so a utility reporting PFOA at 5x the MCL ranks far worse than one at 99% of the MCL.
- Applied higher weights to contaminants the EPA classifies as having no safe level of exposure: lead, PFAS compounds, 1,4-dioxane, arsenic, chromium-6, and disinfection byproducts.
- Excluded aesthetic-only secondary standards (sodium, hardness) from the headline weighting.
We are showing the utility’s own numbers, with the page references back to the CCR PDFs the utilities themselves publish. Nothing here is interpretation. It is the federally mandated reported data, ranked.
The 8 Worst Water Utilities Within a 100-Mile Radius of Manhattan
1. Ridgewood Water (NJ): Active NJDEP PFAS Violation
Zip codes affected: 07432 (Glen Rock), 07450 (Ridgewood), 07452 (Midland Park), 07481 (Wyckoff) Population served: ~61,700
Ridgewood Water reports PFOA at 34.9 parts per trillion (ppt), which is 8.7 times the new federal MCL of 4 ppt and 2.5 times even the older (looser) New Jersey state MCL of 14 ppt. PFOS came in at 17.2 ppt, more than 4 times the federal limit. The utility is currently under an active NJDEP MCL violation notice for both compounds (2024 data).
PFAS is the “forever chemical” family that does not break down in the environment or in the human body. Health effects established by EPA: kidney and testicular cancer, thyroid disease, immune system suppression, developmental delays in children. The federal compliance deadline is 2029, which means Ridgewood Water has years of remediation construction ahead. Anyone drinking unfiltered tap water in those four zips today is consuming PFOA at almost 9 times what EPA now considers the safe enforceable limit.
2. Village of Hempstead Water Department (NY): 1,4-Dioxane Near 10x State Limit
Zip codes affected: 11550 and 11553 (Hempstead Village, Nassau County) Population served: ~58,000
Hempstead is sitting on a Magothy aquifer plume of 1,4-dioxane, reported at 9.8 parts per billion (ppb), which is 9.8 times the New York State MCL of 1 ppb. 1,4-dioxane is a likely human carcinogen used historically as a solvent stabilizer; once it reaches groundwater it does not biodegrade. Hempstead’s wells also show PFOA at 7.96 ppt (about 2x the federal MCL) and PFOS at 7.45 ppt (about 1.9x), both stacked on top of the dioxane.
The village’s CCR notes its 2024 monitoring data and lists treatment buildout as the remediation path. Until that treatment is online, household and commercial taps in 11550 and 11553 are delivering water with a known human carcinogen at 10 times the level the state’s own toxicologists set as the enforceable maximum.
3. Verona Water Department (NJ): Fairview Avenue Well Offline Since 2021 Due to PFOA
Zip code affected: 07044 (Verona) Population served: ~13,641
Verona’s Fairview Avenue well has been offline since 2021 after PFOA exceeded the NJ state MCL. The well is not expected back in service until 2026 at the earliest. Verona’s own reported PFOA value for the source remains 28 ppt (7x the federal MCL, 2x the NJ state MCL), with PFOS at 10 ppt (2.5x federal MCL). To maintain compliant delivered water, Verona is currently purchasing supplemental supply from Passaic Valley Water Commission, so water at the tap meets MCLs even though the underlying source numbers remain elevated.
Verona is the smallest utility in the top 8, serving roughly 13,600 people. The PFAS load is a textbook signature of legacy industrial groundwater contamination. The municipality has been transparent about the problem in successive CCRs, and the supplemental-purchase strategy is the right short-term answer, but treated water from Verona’s own wells is years away.
4. South Farmingdale Water District (NY): Three Concurrent Secondary-MCL Violations
Zip code affected: 11735 (South Farmingdale, Suffolk County) Population served: ~44,700
South Farmingdale reported three concurrent secondary-MCL violations in 2024: iron at 1,900 ppb (6.3 times the federal 300 ppb secondary limit), apparent color at 45 units (3x the 15-unit secondary MCL), and turbidity peaks. The district also reported 1,4-dioxane at 0.34 ppb, a third of the state MCL but still well within detectable range. Iron and color are technically aesthetic standards, but iron at 6x the limit is also a public-health signal: it indicates well infrastructure that is delivering significant levels of dissolved metals to the tap.
5. Veolia Water New York, Westchester Rate District 1 (NY): HAA5 Sample Above MCL, Lead AL Exceedance at 2 Sites
Zip codes affected: 10707, 10708 (Bronxville/Tuckahoe), 10801 to 10805 (New Rochelle) Population served: ~155,000
This is the largest population footprint in the top 8. The utility (which provides retail service in lower Westchester) reported an HAA5 single-sample reading at 80.8 ppb, which is 1.35 times the federal 60 ppb MCL. It also exceeded the 15 ppb federal lead Action Level at 2 of 55 residential tap sites tested, and TTHMs ran at 84% of MCL with peak readings above the limit. HAA5 and TTHMs are disinfection byproducts (DBPs): they form when chlorine reacts with organic carbon in the distribution system. Long-term exposure is associated with bladder cancer and reproductive effects.
6. Hopatcong Borough Water Department (NJ): PFOS Exceeds NJ MCL, PFOA at 98% of Limit
Zip code affected: 07843 (Hopatcong, Sussex County / Lake Hopatcong corridor) Population served: ~7,224
Hopatcong reported PFOS at 18.5 ppt, which is 4.6 times the federal MCL and 1.4 times the NJ state MCL of 13 ppt. PFOA came in at 13.7 ppt, just under the NJ state ceiling but more than 3 times the federal limit. The borough also reported one lead detection at 8.68 ppb, which is below the 15 ppb Action Level but is a credible signal in a system with documented PFAS load and small treatment capacity.
7. Veolia Water New York, Rockland (NY): TTHM at 97% of MCL, PFAS Treatment Recently Installed
Zip codes affected: 21 zip codes across Rockland County, including 10901 (Suffern), 10952 (Monsey), 10960 (Nyack), 10954 (Nanuet), 10977 (Spring Valley), 10994 (West Nyack) Population served: ~300,000
The largest population footprint of any utility in the top 8. The 2023 CCR (the most recent published) reports PFOA at 18 ppt (4.5x federal MCL) and PFOS at 13 ppt (3.3x federal MCL), under a state-issued deferral that ended August 2023. Veolia has since installed granular activated carbon (GAC) treatment at 16 wells across 11 sites, and reports regulated PFAS as non-detect at treated sites. TTHMs in the 2023 data ran at 97% of the federal MCL with single-sample peaks above the limit, and disinfection-byproduct exposure is sensitive to seasonal source water variability. The 2024 CCR is expected mid-2025 and is the report to watch for whether GAC implementation has closed the gap on the regulated PFAS numbers across the system, not just at treated sites.
8. Park Ridge Borough Water Department (NJ): Permanent PFAS Treatment Not Online Until Late 2026
Zip codes affected: 07656 (Park Ridge), 07677 (Woodcliff Lake), Bergen County / Pascack Valley Population served: ~16,500
Park Ridge is in PFAS treatment buildout. Reported PFOS is 13.9 ppt (3.5x federal MCL) and PFOA is 13.7 ppt (3.4x federal MCL). The borough’s own CCR notes that permanent PFAS treatment is not expected to be online until late 2026. The utility is also reporting arsenic at 3.62 ppb (72% of the NJ MCL of 5 ppb), and radium 226/228 at 2.14 pCi/L (43% of MCL). Three separate contaminant categories all running well above target ranges.
The Pattern Underneath the List
Six of the top 8 utilities are on this list because of PFAS exceeding the 2024 EPA MCL. The seventh (Hempstead) is 1,4-dioxane plus PFAS. The eighth (Veolia Westchester District 1) is disinfection byproducts in actual violation of the MCL.
That is not a coincidence. It is the geography of the Northeast: legacy industrial groundwater plumes, military and airport firefighting-foam (AFFF) contamination, and long-distance chlorinated distribution systems all converge here. The federal regulatory response is real, but it operates on a 2029 compliance horizon, which means there are roughly four more years of remediation construction before municipal systems are required to deliver water below the new MCLs.
In the meantime, every business and institution on these lines is making a choice (consciously or not) about what their employees drink during the workday.
What HYDR8 Removes That Municipal Systems Can’t (Yet)
Point-of-use Reverse Osmosis (RO) filtration removes 99%+ of PFOA, PFOS, 1,4-dioxane, lead, arsenic, and disinfection byproducts at the tap. That is the same technology municipal utilities are now retrofitting at scale, applied at the building level rather than the distribution-network level.
For the seven utilities in the top 8 with active PFAS or 1,4-dioxane issues, point-of-use RO is the only practical mitigation a tenant or facility manager can deploy on their own timeline. Waiting for the utility to finish its EPA-required treatment buildout is a strategy. It is just not a short one.
Every Zip Code Served by the Top 8 Utilities
If you’re a facility manager, the fastest way to know whether this list matters to you is to scan your zip code against the 39 zip codes served by these eight utilities.
| Utility | State | Zip Codes |
|---|---|---|
| 1. Ridgewood Water | NJ | 07432, 07450, 07452, 07481 |
| 2. Village of Hempstead WD | NY | 11550, 11553 |
| 3. Verona Water Dept | NJ | 07044 |
| 4. South Farmingdale WD | NY | 11735 |
| 5. Veolia Water NY, Westchester District 1 | NY | 10707, 10708, 10801, 10802, 10803, 10804, 10805 |
| 6. Hopatcong Borough WD | NJ | 07843 |
| 7. Veolia Water NY (Rockland) | NY | 10901, 10920, 10923, 10927, 10952, 10954, 10956, 10960, 10962, 10964, 10965, 10968, 10970, 10974, 10976, 10977, 10980, 10983, 10984, 10989, 10994 |
| 8. Park Ridge Borough WD | NJ | 07656, 07677 |
That’s 39 zip codes across roughly 615,000 people on water systems with documented PFAS, dioxane, or DBP issues. Long Island, Bergen / Sussex / Essex / Morris in New Jersey, and the entire Rockland County corridor are the geographic hotspots.
The Top 50 Worst Zip Codes Across the 100-Mile Radius (Ranked)
The zip-by-zip ranking, scored by the worst utility serving each zip:
| # | Zip | Town/Area | Utility |
|---|---|---|---|
| 1 | 07432 | Glen Rock, NJ | Ridgewood Water |
| 2 | 07450 | Ridgewood, NJ | Ridgewood Water |
| 3 | 07452 | Midland Park, NJ | Ridgewood Water |
| 4 | 07481 | Wyckoff, NJ | Ridgewood Water |
| 5 | 11550 | Hempstead, NY | Village of Hempstead WD |
| 6 | 11553 | Hempstead/Uniondale, NY | Village of Hempstead WD |
| 7 | 07044 | Verona, NJ | Verona Water Dept |
| 8 | 11735 | South Farmingdale, NY | South Farmingdale WD |
| 9 | 10707 | Tuckahoe, NY | Veolia Westchester District 1 |
| 10 | 10708 | Bronxville, NY | Veolia Westchester District 1 |
| 11 | 10801 | New Rochelle, NY | Veolia Westchester District 1 |
| 12 | 10802 | New Rochelle, NY | Veolia Westchester District 1 |
| 13 | 10803 | Pelham, NY | Veolia Westchester District 1 |
| 14 | 10804 | New Rochelle, NY | Veolia Westchester District 1 |
| 15 | 10805 | New Rochelle, NY | Veolia Westchester District 1 |
| 16 | 07843 | Hopatcong, NJ | Hopatcong Borough WD |
| 17 | 10901 | Suffern, NY | Veolia NY (Rockland) |
| 18 | 10920 | Congers, NY | Veolia NY (Rockland) |
| 19 | 10923 | Garnerville, NY | Veolia NY (Rockland) |
| 20 | 10927 | Haverstraw, NY | Veolia NY (Rockland) |
| 21 | 10952 | Monsey, NY | Veolia NY (Rockland) |
| 22 | 10954 | Nanuet, NY | Veolia NY (Rockland) |
| 23 | 10956 | New City, NY | Veolia NY (Rockland) |
| 24 | 10960 | Nyack, NY | Veolia NY (Rockland) |
| 25 | 10962 | Orangeburg, NY | Veolia NY (Rockland) |
| 26 | 10964 | Palisades, NY | Veolia NY (Rockland) |
| 27 | 10965 | Pearl River, NY | Veolia NY (Rockland) |
| 28 | 10968 | Piermont, NY | Veolia NY (Rockland) |
| 29 | 10970 | Pomona, NY | Veolia NY (Rockland) |
| 30 | 10974 | Sloatsburg, NY | Veolia NY (Rockland) |
| 31 | 10976 | Sparkill, NY | Veolia NY (Rockland) |
| 32 | 10977 | Spring Valley, NY | Veolia NY (Rockland) |
| 33 | 10980 | Stony Point, NY | Veolia NY (Rockland) |
| 34 | 10983 | Tappan, NY | Veolia NY (Rockland) |
| 35 | 10984 | Thiells, NY | Veolia NY (Rockland) |
| 36 | 10989 | Valley Cottage, NY | Veolia NY (Rockland) |
| 37 | 10994 | West Nyack, NY | Veolia NY (Rockland) |
| 38 | 07656 | Park Ridge, NJ | Park Ridge Borough WD |
| 39 | 07677 | Woodcliff Lake, NJ | Park Ridge Borough WD |
| 40 | 11964 | Shelter Island, NY | West Neck Water District |
| 41 | 07430 | Mahwah, NJ | Mahwah Water Dept |
| 42 | 11801 | Hicksville, NY | Hicksville Water District |
| 43 | 11802 | Hicksville, NY | Hicksville Water District |
| 44 | 06850 | Norwalk, CT | First Taxing District (Norwalk First Dist) |
| 45 | 06851 | Norwalk, CT | First Taxing District (Norwalk First Dist) |
| 46 | 06853 | Norwalk, CT | First Taxing District (Norwalk First Dist) |
| 47 | 06880 | Westport, CT | First Taxing District (Norwalk First Dist) |
| 48 | 06855 | Norwalk, CT | First Taxing District (Norwalk First Dist) |
| 49 | 07410 | Fair Lawn, NJ | Fair Lawn Water Dept |
| 50 | 11096 | Inwood, NY | Liberty NY Water (Lynbrook Operations) |
Look Up Your Own Zip in 30 Seconds
We built water.hydr8.us as a free public tool to do exactly this lookup. Enter a zip code, get the contaminants reported in your utility’s most recent CCR, the EPA / state MCL for each, and a plain-language read on whether your water is in compliance, near the limit, or above it.
Frequently Asked Questions
Are these utilities breaking the law?
It varies. Ridgewood Water has been in active NJDEP MCL violation for PFOA and PFOS through 14 consecutive quarters under a 2023 Administrative Consent Order, with full PFAS treatment not online until late 2026. Verona’s own wells exceed the NJ MCL for PFOA (the Fairview Avenue well has been offline since 2021), though Verona is currently purchasing compliant supplemental supply so delivered water meets MCLs. The Village of Hempstead is above New York State’s 1,4-dioxane MCL of 1 ppb. Veolia Westchester District 1 had at least one HAA5 single-sample reading above the federal MCL. Veolia Rockland’s deferral on PFOA monitoring ended in August 2023 and the company has since installed GAC treatment at 16 wells; the 2024 CCR will confirm whether system-wide PFAS numbers have come down. The remaining utilities in the top 8 are near or above the new 2024 federal PFAS MCLs, but the federal compliance deadline is not until 2029, so they are not yet considered in formal violation of that standard.
What is the EPA’s new PFAS standard?
In April 2024, the EPA finalized the first-ever national drinking water standard for PFAS. The MCL is 4 parts per trillion (ppt) for PFOA and 4 ppt for PFOS individually, plus a Hazard Index for four additional PFAS compounds. Compliance is required by 2029. The Maximum Contaminant Level Goal (MCLG), which represents the level at which no known health effects occur, is zero for both PFOA and PFOS.
What is 1,4-dioxane and why is it on Long Island?
1,4-dioxane is a likely human carcinogen historically used as a stabilizer in chlorinated solvents and as a byproduct of detergent and personal-care product manufacturing. Long Island’s Magothy aquifer sits beneath decades of industrial activity, and the dioxane plume migrates slowly through groundwater without biodegrading. New York State adopted a 1 ppb MCL in 2020, one of the strictest in the country.
Can a standard pitcher filter remove PFAS or 1,4-dioxane?
No. Most countertop pitcher carbon filters are designed for taste, odor, and free chlorine. They are not certified to remove PFAS or 1,4-dioxane at meaningful rates. NSF/ANSI 58 (reverse osmosis) and NSF/ANSI 53 (specific contaminant reduction, including PFOA/PFOS for some certified products) are the relevant certifications to look for.
What can a facility manager actually do today?
Three practical steps. (1) Look up your address on water.hydr8.us or pull your utility’s latest CCR directly. (2) If your utility is on this list or shows PFAS / 1,4-dioxane / DBP levels near or above MCLs, deploy point-of-use RO filtration at all primary drinking-water points. (3) Communicate to employees that filtered water is available, which is its own retention and trust signal in 2026.
How is HYDR8 different from a bottled water service?
Bottled water delivery does not solve contamination at the source. Plastic bottles also leach their own contaminants (BPA, antimony, microplastics) and most “spring water” brands have themselves been tested positive for PFAS. Point-of-use RO addresses the contaminants at the tap, eliminates the plastic stream entirely, and typically costs less than bottled service over a 24-month horizon.
The Bottom Line
The 2024 federal PFAS MCLs put a quantitative line under contamination that was previously a matter of interpretation. Utilities now have to report against that line, and many of them are well above it. The remediation horizon is years out. Until then, the only practical tool a business has to protect employee drinking water is the same technology utilities are now installing: reverse osmosis, applied at the point of use.
If your facility is on one of the zip codes above (or on any utility reporting PFAS, lead, or DBPs near MCL), you do not have to wait for 2029.
HYDR8 provides NSF-certified point-of-use water filtration to businesses, schools, and institutions. We deliver directly across the New York / New Jersey / Connecticut corridor and partner with installation networks in every major U.S. city to support national rollouts. Our systems significantly reduce contaminants including PFAS, lead, 1,4-dioxane, chlorine, and disinfection byproducts. Contact us for a free water quality consultation, or look up your zip code at water.hydr8.us.
Note: Filtration systems reduce contaminants but cannot guarantee complete removal under all conditions. Performance varies based on water quality, system configuration, and maintenance. All reduction percentages cited are based on independent NSF/WQA testing under controlled conditions. Utility CCR data quoted reflects the most recent annual report published by each utility (2024 reporting year except Veolia NY Rockland, 2023 reporting year). For real-time compliance status, refer to each utility’s published reports.
Sources
- Ridgewood Water 2024 Consumer Confidence Report (PWSID NJ0251001).
- Village of Hempstead 2024 Water Quality Report (PWSID NY2902827).
- Verona Water Department 2024 Water Quality Report (PWSID NJ0720001).
- South Farmingdale Water District 2024 Annual Drinking Water Quality Report (PWSID NY2902854).
- Veolia Water New York Westchester Rate District 1, 2024 Annual Water Quality Report (PWSID NY5903444).
- Hopatcong Borough 2024 Consumer Confidence Report (PWSID NJ1912001).
- Veolia Water New York (Rockland) 2023 Water Quality Report (PWSID NY4303673).
- Park Ridge Borough 2024 Water Quality Report (PWSID NJ0247001).
- U.S. EPA: Per- and Polyfluoroalkyl Substances (PFAS) National Primary Drinking Water Regulation (final rule April 10, 2024; 89 FR 32532).
- New York State Department of Health: Drinking Water Regulations (10 NYCRR Subpart 5-1).
- New Jersey Department of Environmental Protection: PFAS in Drinking Water.
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