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WaterVerge

Water quality report · updated Jul 2026

Is Hounsfield (T), NY Tap Water Safe to Drink?

Graded B- — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do ↓

1 contaminant over a legal limit
2.4 ppb lead, 90th percentile · low
1 unresolved violation
725 people served by 3 water systems

PWSID NY2230094 · moderate data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
B 74.8 / 100

#643 of 810New York cities
How we grade →

01The verdict: is Hounsfield (T) water safe?

Hounsfield (T)'s tap water meets most EPA standards but has areas that warrant attention. With a grade of B- (74.8/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 3 water systems serve approximately 725 residents using surface water (rivers, lakes, or reservoirs).

The concern

Copper is over its legal limit

Measured at 1.37 mg/L against the EPA Action Level of 1.3 mg/L. The ledger below shows how far over — and which filter removes it.

See the measurement ↓
The good news

Lead is well under the limit

90th-percentile lead is 2.4 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

8 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Hounsfield (T)'s drinking water received a grade of B- (74.8 out of 100), indicating fair water quality. The city's 3 water systems serve approximately 725 residents using purchased surface water.

Lead levels were measured at 2.4 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program. The system has 37 violations on record, including 27 health-based violations. 1 remains unresolved.

Hounsfield (T) ranks #643 out of 810 cities in New York for water quality, placing it among the lowest-rated in the state. The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection. As a small community water system, Hounsfield (T) may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 8 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

How the 74.8/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
28.8 / 45C
Lead & CopperLead at 2.4 ppb (90th percentile).
15 / 20B
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
10 / 10A
Source RiskWater source: Purchased surface water.
4 / 5B

02What's in Hounsfield (T)'s water

Every contaminant flagged in Hounsfield (T), on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

2 detections · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%

Over Limit — EPA Action Level: 1.3 mg/L

Exceeds the EPA action level. Copper leaches from household plumbing — flush taps for 30 seconds before drinking, and consider a certified filter.
Exceeds Limit What to do →
2 contaminants tested under EPA SDWIS, LCR and UCMR programs · 2 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.4 15 ppb Inorganic Safe
Copper (90th percentile) 1.37 1.3 mg/L Inorganic Over Limit
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Hounsfield (T)'s ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 37 violations on record, including 27 health-based violations. 1 remains unresolved.

5 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

9 health-based in 10 yrs 6 monitoring & paperwork
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Hounsfield (T)'s water quality assessment. Grade: B- (74.8/100).
Violation3 drinking water violations recordedContaminants: Revised Total Coliform Rule.Resolved
Violation3 drinking water violations recordedContaminants: Revised Total Coliform Rule.Resolved
Violation1 drinking water violation recorded1 health-based. Contaminants: TTHM.Resolved
DisasterFLOODINGFederal disaster declaration (FEMA DR-4348). Flood event — may have impacted local water infrastructure.
DisasterHURRICANE SANDYFederal disaster declaration (FEMA DR-3351). Hurricane event — may have impacted local water infrastructure.
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb2004 — 5 ppb2005 — 3.3 ppb2014 — 1.1 ppb2015 — 1 ppb2016 — 1.1 ppb2017 — 2.4 ppb52.42004201420162017

Down 2.6 ppb since 2004. Latest reading: 2.4 ppb (2017) — 16% of the action level. Sampled at higher-risk homes (90th percentile).

Copper, 90th percentilemg/L

1.4mg/L(2014)

One sampling round on record — 105% of the 1.3mg/L EPA action level. Sampled at higher-risk homes (90th percentile).

04Where Hounsfield (T)'s water comes from

Hounsfield (T)'s drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Source

Purchased Surface Water

Rivers, lakes, or reservoirs — more exposed to runoff, agriculture, and seasonal swings than groundwater.

Treatment

Wholesale supplier

Multi-barrier treatment: coagulation, sedimentation, filtration, and disinfection to meet EPA standards.

Distribution

3 systems

3 water systems, operated under local government ownership.

Delivery

725 people

Residents served across Hounsfield (T)'s service area.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards. These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge. The system is operated by local government ownership and serves approximately 725 people through 3 water systems.

System namePWSIDPopulationSource
HOUNSFIELD WD 2 NY2230094 725 Purchased Surface Water
HOUNSFIELD WD 1, 5 NY2221870 480 Purchased Surface Water
HOUNSFIELD WD 3 (WESCOTT BEACH) NY2230115 270 Purchased Surface Water

Water bodies near Hounsfield (T)

Black River · river

As a surface-water system, these water bodies may directly influence Hounsfield (T)'s drinking water supply.

05Pressure on Hounsfield (T)'s watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Flood & storm history

Recurring — declared disasters

5 federal disaster declarations on record for Jefferson County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.

FLOODING Nov 2017 · DR-4348
HURRICANE SANDY Oct 2012 · DR-3351
HURRICANE KATRINA EVACUATION Sep 2005 · DR-3262

06How Hounsfield (T) compares

Scores for nearby New York cities on one line, with the average marked.

New York (C)
89 · A-
Smithtown (T)
84.8 · B+
Hounsfield (T) (this city)
74.8 · B-
Islip (T)
71.8 · B-

dashed line = New York average (78/100)

Hounsfield (T) scores 74.8/100on par with the New York average of 78/100. It outscores 3 of 10 nearby cities. Full New York rankings →

Jefferson water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Hounsfield (T)'s water — not generic advice.

Because of copper

Filter drinking & cooking water

Basic carbon filter for extra protection. Copper exceeds the EPA action level of 1.3 mg/L

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Hounsfield (T) alerts

This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.

All water alerts →

Frequently asked questions

Is Hounsfield (T), NY tap water safe to drink?

Hounsfield (T)'s water quality earned a grade of B- (74.8/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #643 out of 810 cities tested in New York.

What contaminants are in Hounsfield (T)'s water?

Lead was measured at 2.4 ppb (90th percentile). 37 violations are on record.

How is Hounsfield (T)'s water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Hounsfield (T)?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Hounsfield (T)'s water come from?

Hounsfield (T)'s water is sourced from Purchased surface water. The city has 3 water systems serving approximately 725 residents.

What health violations has Hounsfield (T)'s water system had?

Hounsfield (T) has 27 health-based violations on record. The most recent violation was recorded in September 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.

How does Hounsfield (T)'s water compare to other cities?

Hounsfield (T) ranks #643 out of 810 cities in New York (better than 21% of state cities) and #9638 out of 15382 cities nationally (37th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

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About Hounsfield (T), NY: Watertown is a city in and the county seat of Jefferson County, New York, United States. It is approximately 25 miles (40 km) south of the Thousand Islands, along the Black River, about 5 miles (8 km) east of where it flows into Lake Ontario. The city is bordered by the town of Watertown to the south, east, and west, and is served by the Watertown International Airport and the Watertown Daily Times newspaper. In the middle of Watertown lies the Public Square Historic District, which was built in 1805 and listed on the National Register of Historic Places (NRHP) in 1984. Watertown is located 13 miles southwest of the U.S. Army base at Fort Drum; it is the service and shopping destination for personnel there and their families. As of the 2020 United States census, the city has 24,685 residents, making it the largest city in the North Country. Wikipedia → Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.