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Water system · PWSID CA3410029

SCWA - LAGUNA/VINEYARD

55
Fair
PurityRadar safety score

PWSID

CA3410029

State

California

City

SACRAMENTO

Population served

184,896

Primary source

Surface water

Score history

▼ 30 points — the score moved from 85 to 55 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 55

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Aug 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

5.4 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFOS

Perfluorooctanesulfonic acid

4.4 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFHxS

Perfluorohexanesulfonic acid

6.8 ppt

limit 10 ppt

Near EPA limit

PFHpA

6.3 ppt

limit —

No federal limit

PFBS

4.8 ppt

limit —

No federal limit

PFHxA

3.9 ppt

limit —

No federal limit

PFPeA

3.2 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

2

Unaddressed

1

Health-based

0

Enforcement actions

From EPA ECHO (SDWIS). Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

2 stations · latest Nov 2022

2.71 · max 3.7 mg/l as N · 4

Arsenic

2 stations · latest Nov 2022

2.7 · max 3.6 ug/l · 2

Copper

2 stations · latest Nov 2022

1.06 · max 1.4 ug/l · 2

Fluoride

2 stations · latest Nov 2022

0.15 · max 0.21 mg/l · 2

Lead

2 stations · latest Nov 2022

0.36 · max 0.62 ug/l · 2

Uranium

2 stations · latest Nov 2022

0.342 · max 0.502 ug/l · 2

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA3410029 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.