States › Washington › Pierce County

Pierce County, WA Water Quality

Water quality data for 48 public water systems serving Pierce County, Washington — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 48 water systems · 69 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

Pierce County Earns a B

Pierce County: 69 communities across 48 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.35 ppb
  • 48 communities with a lead detection, 21 reporting none detected
  • 9 communities with PFAS above the federal limit
  • 6 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2.35 ppb
Median Lead Level
County-wide, 90th percentile
48
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
  • Puyallup
    2.70 ppb
    No federal limits exceeded on record
    A
  • South Hill
    2.90 ppb
    No federal limits exceeded on record
    A
  • Fife
    2.00 ppb
    No federal limits exceeded on record
    B
  • Sumner
    2.50 ppb
    No federal limits exceeded on record
    A
  • DuPont
    1.40 ppb
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Parkland
    2.40 ppb
    PFAS above the limit at 2 of 5 sampling points
    D
  • Fort Lewis
    Not detected
    PFAS above the limit at 3 of 6 sampling points
    D
  • North Fort Lewis
    Not detected
    PFAS above the limit at 3 of 6 sampling points
    D
  • McChord AFB
    Not detected
    PFAS above the limit at 3 of 6 sampling points
    D
  • Lakewood
    1.10 ppb
    PFAS above the limit at 1 of 5 sampling points
    C
County Lead Level — Median 2.35 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.35 ppb — 15.7% of the federal action level
Systems by Lead Level
Under 5 ppb
43
5 – 10 ppb
4
10 – 15 ppb
1
No Data
21

All Cities in Pierce County

Tacoma Not detected A
Lakewood 1.10 ppb C
University Place Not detected A
Puyallup 2.70 ppb A
Spanaway 2.40 ppb C
Parkland 2.40 ppb D
South Hill 2.90 ppb A
Bonney Lake 2.40 ppb A
Graham 1.60 ppb C
Fort Lewis Not detected D
Elk Plain 1.60 ppb C
Lake Tapps 2.40 ppb A
Fife 2.00 ppb B
Sumner 2.50 ppb A
Edgewood 4.00 ppb A
Prairie Ridge Not detected A
DuPont 1.40 ppb A
Frederickson 1.60 ppb C
Orting 3.10 ppb A
Midland Not detected A
Gig Harbor 3.00 ppb A
Waller 2.30 ppb A
Milton 7.40 ppb B
Fircrest 1.40 ppb A
Steilacoom 3.10 ppb A
Artondale 1.00 ppb A
Summit 2.30 ppb A
North Fort Lewis Not detected D
Summit View Not detected A
Tehaleh Not detected A
Wauna 4.00 ppb B
Prairie Heights Not detected A
Clover Creek Not detected A
Fox Island Not detected B
Buckley 5.80 ppb A
McChord AFB Not detected D
Wollochet 3.40 ppb A
Eatonville 1.60 ppb A
Rosedale 1.70 ppb B
Alderton Not detected B
Maplewood 2.30 ppb A
Canterwood 2.00 ppb B
Longbranch 5.60 ppb B
North Puyallup 2.70 ppb A
Fife Heights Not detected A
McMillin Not detected A
Key Center 2.00 ppb B
Browns Point Not detected A
Home 1.50 ppb B
Anderson Island 2.60 ppb B
Ruston Not detected A
Crocker Not detected B
Dash Point Not detected A
Roy 2.00 ppb B
Stansberry Lake 2.00 ppb B
Carbonado Not detected B
Purdy 2.30 ppb A
McKenna 3.80 ppb B
Clear Lake Not detected B
Raft Island 1.00 ppb B
Wilkeson 1.20 ppb B
South Prairie 0.50 ppb B
South Creek 9.10 ppb B
Ashford 3.20 ppb B
Herron Island 12.20 ppb B
Alder 2.10 ppb B
La Grande 2.10 ppb B
Kapowsin 3.50 ppb B
Elbe 3.80 ppb B
Showing 69 cities
No active violations Active violations

About Pierce County Drinking Water

Pierce County is served by 48 water systems covering 69 communities. No community here has an open violation on record.

Of the communities reporting lead results, 48 recorded a detection, with a median of 2.35 ppb — 16% of the federal action level. 21 reported none detected, which means below the laboratory limit rather than an absence of lead.

9 of 69 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 6 of them.

Frequently Asked Questions

Is Pierce County tap water safe to drink?▼
No community in Pierce County has an open violation on record. 9 of 69 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Pierce County?▼
Among communities with a detection the median is 2.35 ppb, 16% of the 15 ppb action level. 21 reported none detected and 0 reported no result.
How many water systems serve Pierce County?▼
48 community water systems serve 69 communities here.
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