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WaterVerge

Water quality report · updated Jul 2026

Is Black River, NY Tap Water Safe to Drink?

Graded A-, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
4.2 ppb lead, 90th percentile · low
1 unresolved violation
2K people served by 1 water system

PWSID NY2230102 · moderate data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
A 86.8 / 100

#383 of 810New York cities
How we grade →

01The verdict: is Black River water safe?

Black River's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (86.8/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,500 residents using groundwater (wells).

The concern

1 unresolved violation on record

EPA records show an open compliance item for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 4.2 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

A flood-prone service area

5 federal disaster declarations on record. After severe weather, watch for boil-water advisories.

See the risk factors ↓

Black River's drinking water received a grade of A- (86.8 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,500 residents using purchased ground water.

Lead levels were measured at 4.2 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 2 violations on record, including 1 health-based violation. 1 remains unresolved.

Black River ranks #383 out of 810 cities in New York for water quality, placing it mid-range in the state. Black River purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition. As a small community water system, Black River may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

How the 86.8/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
44.8 / 45A
Lead & CopperLead at 4.2 ppb (90th percentile).
17 / 20B
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
3 / 10F
Source RiskWater source: Purchased ground water.
5 / 5A

02What's in Black River's water

Every contaminant flagged in Black River, 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.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 4.2 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Black River'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 2 violations on record, including 1 health-based violation. 1 remains unresolved.

All ten of the last ten years were clean — no EPA violations recorded for Black River.

UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Black River's water quality assessment. Grade: A- (86.8/100).
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.
Violation1 drinking water violation recorded1 health-based. Contaminants: Coliform (TCR).Resolved
Violation1 drinking water violation recordedContaminants: Lead and Copper Rule.Open
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb2004 — 4 ppb2005 — 4.2 ppb44.220042005

Up 0.20 ppb since 2004. Latest reading: 4.2 ppb (2005) — 28% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Black River's water comes from

Black River purchases its water supply from a regional wholesale provider rather than treating raw water directly.

Source

Purchased Groundwater

Water is bought from a regional wholesaler; quality starts at the supplier's intake and treatment.

Treatment

Wholesale supplier

Primary treatment happens at the wholesaler; the local utility maintains disinfectant residual in its pipes.

Distribution

1 system

1 water system, operated under local government ownership.

Delivery

1,500 people

Residents served across Black River's service area.

Water quality depends on both the wholesaler's treatment standards and the condition of Black River's local distribution pipes and storage facilities. Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment. The system is operated by local government ownership and serves approximately 1,500 people through 1 water system.

System namePWSIDPopulationSource
RUTLAND TOWN WD 1 NY2230102 1,500 Purchased Groundwater

Water bodies near Black River

Black River · river

These water bodies shape the regional watershed and can indirectly affect groundwater quality.

05Pressure on Black River'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.

Industrial discharge

Present — monitored

5 facilities within 10 miles reported 0 lb released to surface water in the latest EPA Toxics Release Inventory. Proximity doesn't equal tap contamination — treatment and hydrology decide — but it's pressure on the watershed.

GRIFFITH ENERGY - WATERTOWN 0 lb · 8.6 mi
KNOWLTON TECHNOLOGIES LLC 0 lb · 5.9 mi
NEW YORK AIR BRAKE LLC 0 lb · 5.2 mi
+ 2 more facilities

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

Superfund proximity

Multiple tracked sites nearby

2 National Priorities List sites within 10 miles. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

06How Black River compares

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

New York (C)
89 · A-
Black River (this city)
86.8 · A-
Smithtown (T)
84.8 · B+
Islip (T)
71.8 · B-

dashed line = New York average (78/100)

Black River scores 86.8/100above the New York average of 78/100. It outscores 8 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 Black River's water — not generic advice.

Extra protection

A basic carbon filter still helps

Black River's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Because lead was detected

Flush taps & check your service line

Lead leaches from pipes as water sits. Run cold water 30 seconds before drinking (especially mornings), and ask the utility whether your address still has a lead service line.

Lead risks explained →
Stay informed

Watch for Black River 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 Black River, NY tap water safe to drink?

Black River's water quality earned a grade of A- (86.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #383 out of 810 cities tested in New York.

What contaminants are in Black River's water?

Lead was measured at 4.2 ppb (90th percentile). 2 violations are on record.

How is Black River'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 Black River?

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

Where does Black River's water come from?

Black River's water is sourced from Purchased ground water. The city has 1 water system serving approximately 1,500 residents.

What health violations has Black River's water system had?

Black River has 1 health-based violation on record. The most recent violation was recorded in March 2012. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.

Is Black River's groundwater at risk of contamination?

Black River uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 2 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Black River's water compare to other cities?

Black River ranks #383 out of 810 cities in New York (better than 53% of state cities) and #4428 out of 15382 cities nationally (71th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Black River's small water system affect quality?

Black River's system serves approximately 1,500 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 2 violations on record.

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About Black River, NY: Black River is a village in Jefferson County, New York, United States. As of the 2020 census, Black River had a population of 1,232. The village is on the border of the towns of Le Ray and Rutland, east of Watertown. Median household income $80,305 · median home value $202,247 · median age 38.6 · 54.5% homeowners · 31.3% college educated. Wikipedia → Service area: 1 ZIP code across Jefferson.
Show ZIP codes 13612
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.