States › New York › Onondaga County

Onondaga County, NY Water Quality

Water quality data for 7 public water systems serving Onondaga County, New York — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 7 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

Onondaga County Earns a A

Onondaga County: 24 communities across 7 water systems. 95.8% have no open violations.

  • Median lead where detected: 7.00 ppb
  • 24 communities with a lead detection, 0 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 95.8% of communities have no open violations
7 ppb
Median Lead Level
County-wide, 90th percentile
7
Water Systems
Active CWS & NTNCWS
95%
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
  • Baldwinsville
    4.00 ppb
    No federal limits exceeded on record
    A
  • Tully
    1.10 ppb
    No federal limits exceeded on record
    B
  • De Witt
    3.00 ppb
    1 health-based violation since 2015
    A
  • Clay
    7.00 ppb
    Lead at 7.00 ppb, above a third of the action level
    A
  • Manlius
    7.00 ppb
    Lead at 7.00 ppb, above a third of the action level
    A
⚠ Needs Attention
  • Syracuse
    12.00 ppb
    1 violation currently open
    D
  • Elbridge
    5.00 ppb
    5 health-based violations since 2015
    B
  • Skaneateles
    3.00 ppb
    13 health-based violations since 2015
    B
  • Clay
    7.00 ppb
    Lead at 7.00 ppb, above a third of the action level
    A
  • Manlius
    7.00 ppb
    Lead at 7.00 ppb, above a third of the action level
    A
County Lead Level — Median 7 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 7 ppb — 46.7% of the federal action level
Systems by Lead Level
Under 5 ppb
4
5 – 10 ppb
19
10 – 15 ppb
1

All Cities in Onondaga County

Syracuse 12.00 ppb D
Clay 7.00 ppb A
Manlius 7.00 ppb A
Salina 7.00 ppb A
Cicero 7.00 ppb A
Camillus 7.00 ppb A
Onondaga 7.00 ppb A
Geddes 7.00 ppb A
Lysander 7.00 ppb A
De Witt 3.00 ppb A
Baldwinsville 4.00 ppb A
Van Buren 7.00 ppb A
North Syracuse 7.00 ppb A
Marcellus 7.00 ppb A
Lyncourt 7.00 ppb A
Brewerton 7.00 ppb A
Skaneateles 3.00 ppb B
Pompey 7.00 ppb A
Bridgeport 7.00 ppb A
Elbridge 5.00 ppb B
LaFayette 7.00 ppb A
Tully 1.10 ppb B
Otisco 7.00 ppb A
Spafford 7.00 ppb A
Showing 24 cities
No active violations Active violations

About Onondaga County Drinking Water

Onondaga County is served by 7 water systems covering 24 communities. 96% have no open violations.

Of the communities reporting lead results, 24 recorded a detection, with a median of 7.00 ppb — 47% of the federal action level. 0 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 Onondaga County tap water safe to drink?▼
96% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Onondaga County?▼
Among communities with a detection the median is 7.00 ppb, 47% of the 15 ppb action level. 0 reported none detected and 0 reported no result.
How many water systems serve Onondaga County?▼
7 community water systems serve 24 communities here.
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