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Sacramento County, CA Water Quality

Water quality data for 23 public water systems serving Sacramento County, California — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 23 water systems · 34 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Sacramento County Earns a B

Sacramento County: 34 communities across 23 water systems. 85.3% have no open violations.

  • Median lead where detected: 3.70 ppb
  • 5 communities with a lead detection, 29 reporting none detected
  • 8 communities with PFAS above the federal limit
  • 2 with significant inspection deficiencies
  • 85.3% of communities have no open violations
3.7 ppb
Median Lead Level
County-wide, 90th percentile
23
Water Systems
Active CWS & NTNCWS
85%
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
  • Arden-Arcade
    Not detected
    No federal limits exceeded on record
    A
  • Folsom
    Not detected
    No federal limits exceeded on record
    A
  • Citrus Heights
    Not detected
    No federal limits exceeded on record
    A
  • North Highlands
    Not detected
    No federal limits exceeded on record
    A
  • Carmichael
    Not detected
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Franklin
    Not detected
    PFAS above the limit at 4 of 18 sampling points
    F
  • Elk Grove
    Not detected
    PFAS above the limit at 4 of 18 sampling points
    F
  • Vineyard
    Not detected
    PFAS above the limit at 4 of 18 sampling points
    F
  • Mather
    Not detected
    1 violation currently open
    C
  • Hood
    Not detected
    1 violation currently open
    C
County Lead Level — Median 3.7 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 3.7 ppb — 24.7% of the federal action level
Systems by Lead Level
Under 5 ppb
3
5 – 10 ppb
2
No Data
29

All Cities in Sacramento County

Sacramento Not detected C
Elk Grove Not detected F
Arden-Arcade Not detected A
Folsom Not detected A
Citrus Heights Not detected A
North Highlands Not detected A
Carmichael Not detected A
Florin 1.00 ppb C
Rancho Cordova Not detected A
Antelope Not detected A
Vineyard Not detected F
Fair Oaks Not detected A
Galt Not detected B
Rosemont Not detected C
Foothill Farms Not detected A
Orangevale Not detected A
Rio Linda Not detected A
Lemon Hill 6.00 ppb A
La Riviera Not detected C
Parkway 6.00 ppb A
Gold River Not detected A
Rancho Murieta Not detected A
Fruitridge Pocket Not detected C
Elverta Not detected A
Mather Not detected C
McClellan Park Not detected A
Isleton 2.00 ppb B
Walnut Grove Not detected B
Wilton Not detected B
Hood Not detected C
Courtland Not detected B
Freeport 3.70 ppb B
Herald Not detected B
Franklin Not detected F
Showing 34 cities
No active violations Active violations

About Sacramento County Drinking Water

Sacramento County is served by 23 water systems covering 34 communities. 85% have no open violations.

Of the communities reporting lead results, 5 recorded a detection, with a median of 3.70 ppb — 25% of the federal action level. 29 reported none detected, which means below the laboratory limit rather than an absence of lead.

8 of 34 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded significant deficiencies at 2 of them.

Frequently Asked Questions

Is Sacramento County tap water safe to drink?▼
85% of communities have no open violation. 8 of 34 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Sacramento County?▼
Among communities with a detection the median is 3.70 ppb, 25% of the 15 ppb action level. 29 reported none detected and 0 reported no result.
How many water systems serve Sacramento County?▼
23 community water systems serve 34 communities here.
← Back to California water quality overview