WaterVerge

Is Altona (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 next ↓

669 residents served 2 water systems PWSID: NY0919482
Overall Score
82 / 100
Violations
11 active
Last Updated
May 2026
Source
Groundwater
#538 of 855 in New York Top 46% nationally
State
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
82/100
waterverge.com
B+ 82/100

Altona (T), NY — Water Quality Report

Altona (T)'s drinking water received a grade of B+ (82 out of 100), indicating good water quality. The city's 2 water systems serve approximately 669 residents using groundwater.

Lead levels were measured at 1.0 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 105 violations on record, including 6 health-based violations. 11 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Altona (T)'s water

Altona (T) ranks #538 out of 855 cities in New York for water quality, placing it below average in the state.

Altona (T) relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Altona (T) may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
82 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
36/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
16/20
B
Lead at 1.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Altona (T), NY water safe to drink?

Concerns Identified

Altona (T)'s drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (82/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 669 residents using groundwater (wells).

11
Active Violations
1.0 ppb
Lead (90th %ile)
6 events
Disaster History

Recent water quality updates for Altona (T)

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Altona (T)'s water quality assessment. Grade: B+ (82/100).

Violation
2 drinking water violations recorded

Contaminants: Total Haloacetic Acids (HAA5), TTHM.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4129). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE SANDY

Federal disaster declaration (FEMA DR-3351). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Altona (T)'s water supply.

Lead Within Limits
Detected: 1.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Copper Exceeds Limit
Detected: 1.60 mg/L Limit: 1.3 mg/L (EPA Action Level)

Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.

Violation history

Altona (T)'s water system has 105 total violations on record, including 6 health-based violations. 11 remain unresolved. 2 violations were issued in the last 5 years.

MRMONOtherTTMCL
Most recent violations:
Jan 2023 Total Haloacetic Acids (HAA5) Resolved
Jan 2023 TTHM Resolved
Oct 2019 Lead and Copper Rule Open
Oct 2018 Revised Total Coliform Rule Resolved
Oct 2017 Revised Total Coliform Rule Resolved

Flood & environmental risk

Clinton County has experienced 6 federally declared disasters since 1996. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

SEVERE STORMS AND FLOODING
Flood FEMA DR-4129
HURRICANE SANDY
Hurricane FEMA DR-3351
HURRICANE IRENE
Hurricane FEMA DR-4020

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

Altona (T)'s drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 669 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Altona (T) residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Altona (T)'s water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Altona (T)'s area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
1.0 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
Copper (90th percentile)
Inorganic
Over Limit
1.60 mg/L
EPA Action Level: 1.3 mg/L · +20% over limit
Exceeds Limit
Compliance Record

Violation summary

105
Total violations
6
Health-based
11
Active / unresolved
Jan 2023
Most recent violation
Compliance Record

Violations & advisories

105 Total
11 Active
6 Health-based
94 Resolved
Violations by category
Volatile Organic Chemicals
40
Total Coliform Rule
24
Stage 1 Disinfectants and Disinfection Byproducts Rule
10
Lead and Copper Rule
8
Radionuclides and Revised Rad Rule
5
Oct 2019 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2011 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2004 Active
COPPER, FREE
Treatment Technique
Health-Based Health 0
Jan 2004 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2003 Active
COPPER, FREE
Treatment Technique
Health-Based Health 0
Jul 2003 Active
Lead
Treatment Technique
Health-Based Health 0
Jan 2003 Active
Lead
Treatment Technique
Health-Based Health 0
Jul 2002 Active
COPPER, FREE
Treatment Technique
Health-Based Health 0
Jan 2000 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Jan 2023 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2023
Jan 2023 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2023
Oct 2018 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Dec 2018
Oct 2017 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Dec 2017
Jan 2012 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2012
Jan 2012 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2012
Jan 2011 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2011
Oct 2010 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2010
Dec 2009 Resolved
Miscellaneous Other Rules
Other Violation Resolved Dec 2009
Showing 20 of 105 violations
Environmental Risk

Flood & disaster history

6
Declared disasters
Jul 2013
Most recent
Flood
Most common type

Clinton County has experienced 6 federally declared disasters since 1996. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jul 2013
SEVERE STORMS AND FLOODING
Flood FEMA #4129
Oct 2012
HURRICANE SANDY
Hurricane FEMA #3351
Aug 2011
HURRICANE IRENE
Hurricane FEMA #4020
Jun 2011
SEVERE STORMS, FLOODING, TORNADOES, AND STRAIGHT-LINE WINDS
Flood FEMA #1993
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3262
Jan 1996
SEVERE STORMS AND FLOODING
Flood FEMA #1095

Recommended water filters

Based on contaminants detected in Altona (T)'s water supply, we recommend the following filter types.

🔧
For Copper
Reverse Osmosis or KDF Filter
Copper exceeds the EPA action level of 1.3 mg/L

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.0 15 ppb Inorganic Safe
Copper (90th percentile) 1.60 1.3 mg/L Inorganic Over Limit
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 20.0 ppb from 1993 (21.0 ppb) to 2025 (1.0 ppb).

Copper level trend (90th percentile)

EPA action level: 1.3 mg/L
Copper has increased by 0.200 mg/L from 1993 (1.400 mg/L) to 2022 (1.600 mg/L).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
State
Population Served
669
Water Systems
2
Water Source

Where Altona (T)'s water comes from

Groundwater

Altona (T)'s drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by state ownership and serves approximately 669 people through 2 water systems.

Infrastructure

Water systems serving Altona (T)

System Name PWSID Population Source
ALTONA CORRECTIONAL FACILITY NY0919482 650 GW
TWIN OAKS HOUSING NY0930016 19 GW
Regional Comparison

How Altona (T) compares

Full New York rankings →

Altona (T)'s score of 82/100 is above the average of 74/100 among major New York cities. It outscores 7 of 10 nearby cities.

Altona (T) (this city)
82
New York avg
74
City Profile

About Altona (T), NY

Wikipedia →

Altona is a town in Clinton County, New York, United States. The population was 2,666 at the 2020 census. The town was named after the Altona, Hamburg, district of Germany. The town contains a hamlet also called Altona.

Economic Profile
$53,750
Median Income
$129,082
Median Home Value
$906/mo
Median Rent
6.5%
Unemployment
Community
42.5
Median Age
9
People / sq mi
11.2%
College Educated
74.2%
Homeownership
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Frequently asked questions

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

Altona (T)'s water quality earned a grade of B+ (82/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #538 out of 855 cities tested in New York.

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

Lead was measured at 1.0 ppb (90th percentile). 105 violations are on record.

How is Altona (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 Altona (T)?

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

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

Altona (T)'s water is sourced from Groundwater. The city has 2 water systems serving approximately 669 residents.

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

Altona (T) has 6 health-based violations on record. The most recent violation was recorded in January 2023. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 11 violations remain unresolved.

Is Altona (T)'s groundwater at risk of contamination?

Altona (T) 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 105 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 Altona (T)'s water compare to other cities?

Altona (T) ranks #538 out of 855 cities in New York (better than 37% of state cities) and #7236 out of 15744 cities nationally (54th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.