Water Quality in GREAT NECK, NY (11023)

EPA violation data for public water systems serving ZIP code 11023.

147

Total Violations

Health-Based

Monitoring / Reporting

138

Resolved

What does this mean?

138 of 147 violations have been resolved. 49 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 98 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 3 Population served: 43,900

Violations Detail (147 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 12, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 12, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 1, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 4, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 15, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 15, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 15, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 15, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 3, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 3, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 3, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 3, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 3, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 27, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 27, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 27, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 27, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 27, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 27, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 27, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 27, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 21, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 21, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 21, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 21, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 21, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 21, 2023	Resolved	N/A
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 31, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 24, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 24, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 24, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 24, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Jul 12, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 12, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 12, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2023	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath

Violation Timeline

2025(5)

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

2024(38)

Public Notice

Oct 12Resolved

Public Notice

Oct 12Resolved

Revised Total Coliform Rule

Sep 1Resolved

Revised Total Coliform Rule

Sep 1Resolved

Revised Total Coliform Rule

Sep 1Resolved

Revised Total Coliform Rule

Sep 1Resolved

Revised Total Coliform Rule

Sep 1Resolved

Revised Total Coliform Rule

Sep 1Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

E. COLI

Aug 4Active

E. COLI

Aug 4Active

E. COLI

Aug 4Active

E. COLI

Aug 4Active

E. COLI

Aug 4Active

E. COLI

Aug 4Active

E. COLI

Aug 4Active

E. COLI

Aug 4Active

E. COLI

Aug 4Active

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

2023(84)

Public Notice

Oct 15Resolved

Public Notice

Oct 15Resolved

Public Notice

Oct 15Resolved

Public Notice

Oct 15Resolved

Public Notice

Oct 14Resolved

Public Notice

Oct 14Resolved

Public Notice

Oct 1Resolved

Public Notice

Oct 1Resolved

Public Notice

Oct 1Resolved

Public Notice

Oct 1Resolved

Public Notice

Oct 1Resolved

Public Notice

Oct 1Resolved

Public Notice

Oct 1Resolved

Public Notice

Oct 1Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 4Resolved

Revised Total Coliform Rule

Sep 3Resolved

Revised Total Coliform Rule

Sep 3Resolved

Revised Total Coliform Rule

Sep 3Resolved

Revised Total Coliform Rule

Sep 3Resolved

Revised Total Coliform Rule

Sep 3Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 27Resolved

Revised Total Coliform Rule

Aug 27Resolved

Public Notice

Aug 27Resolved

Public Notice

Aug 27Resolved

Revised Total Coliform Rule

Aug 27Resolved

Revised Total Coliform Rule

Aug 27Resolved

Revised Total Coliform Rule

Aug 27Resolved

Revised Total Coliform Rule

Aug 27Resolved

Revised Total Coliform Rule

Aug 21Resolved

Revised Total Coliform Rule

Aug 21Resolved

Revised Total Coliform Rule

Aug 21Resolved

Revised Total Coliform Rule

Aug 21Resolved

Revised Total Coliform Rule

Aug 21Resolved

Revised Total Coliform Rule

Aug 21Resolved

E. COLI

Aug 7Resolved

E. COLI

Aug 7Resolved

E. COLI

Aug 7Resolved

E. COLI

Aug 7Resolved

E. COLI

Aug 7Resolved

E. COLI

Aug 7Resolved

E. COLI

Aug 7Resolved

E. COLI

Aug 7Resolved

E. COLI

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

E. COLI

Jul 31Resolved

E. COLI

Jul 31Resolved

E. COLI

Jul 31Resolved

E. COLI

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

E. COLI

Jul 31Resolved

E. COLI

Jul 31Resolved

E. COLI

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

E. COLI

Jul 24Resolved

E. COLI

Jul 24Resolved

E. COLI

Jul 24Resolved

E. COLI

Jul 24Resolved

Public Notice

Jul 12Resolved

Public Notice

Jul 12Resolved

Public Notice

Jul 12Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

How Does This Compare?

GREAT NECK (11023) has 147 recorded violations, including 49 health-based. 9 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in GREAT NECK, NY (11023)

What does this mean?

Violations Detail (147 total)

Violation Timeline

2025(5)

2024(38)

2023(84)

2022(20)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code