Ferndale, WA
Contamination score
Higher = more contaminated vs. other cities.
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Reported illness & cancer claims
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Self-reported issues
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Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
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Public water systems
FERNDALE
- PWSID:
- WA5324850
- Source:
- Ground water
- Serves:
- 19,305 people
Lummi Tribal Water District
- PWSID:
- 105300002
- Source:
- Surface water
- Serves:
- 3,699 people
EPA & DEP violations
FERNDALE
PWSID WA53248505 violationsMonitoring violation — FERNDALE
low severityOpenEPA SDWIS violation 3203382 (code 27) at FERNDALE (PWSID WA5324850).
EPA SDWIS · Monitoring violation · Began Jan 1, 2025 · 1 year ago · Source ↗
Monitoring violation — FERNDALE
low severityOpenEPA SDWIS violation 3204238 (code 27) at FERNDALE (PWSID WA5324850).
EPA SDWIS · Monitoring violation · Began Jan 1, 2025 · 1 year ago · Source ↗
Other violation — FERNDALE
low severityResolvedEPA SDWIS violation 2464919 (code 71) at FERNDALE (PWSID WA5324850).
EPA SDWIS · Other violation · Began Jul 1, 2024 · 2 years ago · Source ↗
Other violation — FERNDALE
low severityResolvedEPA SDWIS violation 1639994 (code 71) at FERNDALE (PWSID WA5324850).
EPA SDWIS · Other violation · Began Jul 1, 2016 · 10 years ago · Source ↗
Other violation — FERNDALE
low severityResolvedEPA SDWIS violation 1435766 (code 71) at FERNDALE (PWSID WA5324850).
EPA SDWIS · Other violation · Began Jul 1, 2014 · 12 years ago · Source ↗
City-wide
20 violationsConsumer Confidence Rule — Other violation
medium severityUnaddressedConsumer Confidence Rule Other violation (Unaddressed).
EPA SDWIS · Other · Began Oct 1, 2025 · 10 months ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityUnaddressedConsumer Confidence Rule Other violation (Unaddressed).
EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityUnaddressedPublic Notice Other violation (Unaddressed).
EPA SDWIS · Other · Began Dec 13, 2024 · 1 year ago · Source ↗
Revised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Dec 1, 2024 · 1 year ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Dec 1, 2024 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — TT violation
high severityHealth-basedUnaddressedLEAD AND COPPER RULE REVISIONS TT violation (Unaddressed).
EPA SDWIS · TT · Began Oct 17, 2024 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — RPT violation
medium severityResolvedLEAD AND COPPER RULE REVISIONS RPT violation (Resolved).
EPA SDWIS · RPT · Began Oct 17, 2024 · 1 year ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Sep 1, 2024 · 1 year ago · Source ↗
Arsenic — MR violation
medium severityResolvedArsenic MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2023 · 2 years ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2023 · 3 years ago · Source ↗
TTHM — MR violation
medium severityResolvedTTHM MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2023 · 3 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MR violation
medium severityResolvedTotal Haloacetic Acids (HAA5) MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2023 · 3 years ago · Source ↗
TTHM — MR violation
medium severityResolvedTTHM MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MR violation
medium severityResolvedTotal Haloacetic Acids (HAA5) MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.