States › New York › Cayuga County

Cayuga County, NY Water Quality

Water quality data for 15 public water systems serving Cayuga County, New York — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 15 water systems · 24 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Cayuga County Earns a A

Cayuga County: 24 communities across 15 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.00 ppb
  • 14 communities with a lead detection, 10 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2 ppb
Median Lead Level
County-wide, 90th percentile
15
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Victory
    Not detected
    No federal limits exceeded on record
    B
  • Niles
    Not detected
    No federal limits exceeded on record
    B
  • Sennett
    2.00 ppb
    No federal limits exceeded on record
    A
  • Conquest
    Not detected
    No federal limits exceeded on record
    B
  • Auburn
    2.00 ppb
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Ledyard
    5.00 ppb
    8 health-based violations since 2015
    B
  • Sterling
    13.80 ppb
    Lead at 13.80 ppb, above a third of the action level
    A
  • Aurelius
    7.00 ppb
    Lead at 7.00 ppb, above a third of the action level
    B
  • Niles
    Not detected
    No federal limits exceeded on record
    B
  • Conquest
    Not detected
    No federal limits exceeded on record
    B
County Lead Level — Median 2 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2 ppb — 13.3% of the federal action level
Systems by Lead Level
Under 5 ppb
11
5 – 10 ppb
2
10 – 15 ppb
1
No Data
10

All Cities in Cayuga County

Auburn 2.00 ppb A
Owasco 2.00 ppb B
Moravia 3.00 ppb A
Brutus 1.80 ppb B
Melrose Park 2.00 ppb B
Mentz Not detected B
Fleming 2.00 ppb B
Springport 4.20 ppb B
Sterling 13.80 ppb A
Cato Not detected B
Ledyard 5.00 ppb B
Throop Not detected B
Ira Not detected B
Locke 2.00 ppb B
Cato Not detected B
Genoa 2.00 ppb B
Montezuma Not detected B
Sempronius Not detected B
Aurelius 7.00 ppb B
Venice 2.00 ppb B
Victory Not detected B
Conquest Not detected B
Niles Not detected B
Sennett 2.00 ppb A
Showing 24 cities
No active violations Active violations

About Cayuga County Drinking Water

Cayuga County is served by 15 water systems covering 24 communities. No community here has an open violation on record.

Of the communities reporting lead results, 14 recorded a detection, with a median of 2.00 ppb — 13% of the federal action level. 10 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded no significant deficiencies.

Frequently Asked Questions

Is Cayuga County tap water safe to drink?▼
No community in Cayuga County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Cayuga County?▼
Among communities with a detection the median is 2.00 ppb, 13% of the 15 ppb action level. 10 reported none detected and 0 reported no result.
How many water systems serve Cayuga County?▼
15 community water systems serve 24 communities here.
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