States › Alaska › Matanuska-Susitna Borough

Matanuska-Susitna Borough, AK Water Quality

Water quality data for 10 public water systems serving Matanuska-Susitna Borough, Alaska — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 10 water systems · 15 cities
✅
Excellent — All Systems Performing Well

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

A

Matanuska-Susitna Borough Earns a A

Matanuska-Susitna Borough: 15 communities across 10 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.30 ppb
  • 13 communities with a lead detection, 2 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 4 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2.3 ppb
Median Lead Level
County-wide, 90th percentile
10
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
  • Talkeetna
    1.40 ppb
    No federal limits exceeded on record
    B
  • Trapper Creek
    Not detected
    No federal limits exceeded on record
    B
  • Knik River
    0.80 ppb
    No federal limits exceeded on record
    B
  • Meadow Lakes
    1.70 ppb
    No federal limits exceeded on record
    B
  • North Lakes
    3.10 ppb
    1 health-based violation since 2015
    A
⚠ Needs Attention
  • Fishhook
    5.70 ppb
    Copper above the 1,300 ppb action level
    B
  • Big Lake
    Not detected
    Copper above the 1,300 ppb action level
    B
  • Gateway
    2.30 ppb
    1 significant inspection deficiency
    A
  • Farm Loop
    2.30 ppb
    1 significant inspection deficiency
    A
  • Palmer
    2.30 ppb
    1 significant inspection deficiency
    A
County Lead Level — Median 2.3 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.3 ppb — 15.3% of the federal action level
Systems by Lead Level
Under 5 ppb
12
5 – 10 ppb
1
No Data
2

All Cities in Matanuska-Susitna Borough

Big Lake Not detected B
Farm Loop 2.30 ppb A
Fishhook 5.70 ppb B
Gateway 2.30 ppb A
Knik-Fairview 0.72 ppb B
Knik River 0.80 ppb B
Meadow Lakes 1.70 ppb B
North Lakes 3.10 ppb A
Palmer 2.30 ppb A
South Lakes 3.10 ppb A
Talkeetna 1.40 ppb B
Tanaina 3.10 ppb A
Trapper Creek Not detected B
Wasilla 3.10 ppb A
Willow 3.60 ppb B
Showing 15 cities
No active violations Active violations

About Matanuska-Susitna Borough Drinking Water

Matanuska-Susitna Borough is served by 10 water systems covering 15 communities. No community here has an open violation on record.

Of the communities reporting lead results, 13 recorded a detection, with a median of 2.30 ppb — 15% of the federal action level. 2 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 significant deficiencies at 4 of them.

Frequently Asked Questions

Is Matanuska-Susitna Borough tap water safe to drink?▼
No community in Matanuska-Susitna Borough has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Matanuska-Susitna Borough?▼
Among communities with a detection the median is 2.30 ppb, 15% of the 15 ppb action level. 2 reported none detected and 0 reported no result.
How many water systems serve Matanuska-Susitna Borough?▼
10 community water systems serve 15 communities here.
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