WaterVerge

Is Laconner, WA Tap Water Safe to Drink?

Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

3K residents served 2 water systems PWSID: WA5343350
Overall Score
92.8 / 100
Violations
2 active
Last Updated
May 2026
Source
Purchased surface water
#21 of 294 in Washington Top 7% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
92.8/100
waterverge.com
A 92.8/100

Laconner, WA — Water Quality Report

Laconner's drinking water received a grade of A (92.8 out of 100), indicating excellent water quality. The city's 2 water systems serve approximately 2,797 residents using purchased surface water.

Lead levels were measured at 2.7 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 15 violations on record, including 0 health-based violations. 2 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Laconner's water

Laconner ranks #21 out of 294 cities in Washington for water quality, placing it one of the best in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

As a small community water system, Laconner may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
92.8 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.8/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 2.7 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Laconner, WA water safe to drink?

Use Caution

Laconner's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (92.8/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 2 water systems serve approximately 2,797 residents using surface water (rivers, lakes, or reservoirs).

2
Active Violations
2.7 ppb
Lead (90th %ile)

Recent water quality updates for Laconner

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Laconner's water quality assessment. Grade: A (92.8/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Key contaminant findings

Based on the most recent EPA sampling data for Laconner's water supply.

Lead Within Limits
Detected: 2.7 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Laconner's water system has 15 total violations on record, including 0 health-based violations. 2 remain unresolved.

OtherMR
Most recent violations:
Jul 2016 Consumer Confidence Rule Open
Aug 2014 Coliform (TCR) Resolved
Dec 2007 Coliform (TCR) Resolved
Jan 1999 Lead and Copper Rule Resolved

Where does Laconner's water come from?

Laconner's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 2,797 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.

What Laconner residents can do

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
2.7 ppb
EPA Action Level: 15 ppb · 18% of limit
Safe Level
Compliance Record

Violation summary

15
Total violations
0
Health-based
2
Active / unresolved
Jul 2016
Most recent violation
Compliance Record

Violations & advisories

15 Total
2 Active
0 Health-based
13 Resolved
Violations by category
Total Coliform Rule
12
Consumer Confidence Rule
1
Lead and Copper Rule
1
Jul 2016 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Aug 2014 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 2014
Dec 2007 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2007
Mar 2003 Resolved
Total Coliform Rule
Other Violation Resolved Feb 2008
Jan 1999 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2000
Aug 1998 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 1998
Mar 1996 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 1996
Mar 1994 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 1994
Feb 1994 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 1994
Dec 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 1992
Aug 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 1992
Apr 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 1992
Feb 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 1992
Feb 1991 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 1991

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.7 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 7.0 ppb from 1993 (7.0 ppb) to 2023 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
2,797
Water Systems
2
Water Source

Where Laconner's water comes from

Purchased Surface Water

Laconner's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 2,797 people through 2 water systems.

Infrastructure

Water systems serving Laconner

System Name PWSID Population Source
LA CONNER WATER DEPT WA5343350 1,585 SWP
SWINOMISH 105300032 1,212 SWP
Regional Comparison

How Laconner compares

Full Washington rankings →

Laconner's score of 92.8/100 is above the average of 53/100 among major Washington cities. It outscores 10 of 10 nearby cities.

Laconner (this city)
92.8
Seattle
42.3
Tacoma
32.2
Vancouver
32.9
Spokane
39.2
Kent
44.4
Washington avg
53
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Frequently asked questions

Is Laconner, WA tap water safe to drink?

Laconner's water quality earned a grade of A (92.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #21 out of 294 cities tested in Washington.

What contaminants are in Laconner's water?

Lead was measured at 2.7 ppb (90th percentile). 15 violations are on record.

How is Laconner's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Laconner?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Laconner's water come from?

Laconner's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 2,797 residents.

How does Laconner's water compare to other cities?

Laconner ranks #21 out of 294 cities in Washington (better than 93% of state cities) and #1111 out of 15744 cities nationally (93th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.