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Water system · PWSID CA3410001

SACRAMENTO SUBURBAN WATER DISTRICT

SACRAMENTO, CA · ~194,444 people served

Check your exact address → SACRAMENTO overview
99
Excellent
PurityRadar safety score

PWSID

CA3410001

State

California

City

SACRAMENTO

Population served

194,444

Primary source

SWP

Score history

▼ 1 point — the score moved from 100 to 99 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 99

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 Oct 2025). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

5.8 ppt

limit 10 ppt

Near EPA limit

Lithium

36,000 ppt

limit —

No federal limit

PFBS

4.7 ppt

limit —

No federal limit

PFPeA

4 ppt

limit —

No federal limit

PFHxA

3.4 ppt

limit —

No federal limit

Violations & enforcement

7

Violations on record

0

Unaddressed

5

Health-based

20

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2010. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1994 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jun 1993 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1992 Resolved
Monitoring & reporting · Total coliform began Oct 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1992 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jun 1992 Resolved

Recent enforcement actions

  • State action · SOX Apr 2010
  • State action · SFL Mar 2009
  • EPA/federal action · EOX Mar 2000
  • State action · SOX Oct 1994
  • State action · SIA Oct 1994
  • EPA/federal action · EOX Dec 1993
  • EPA/federal action · EO+ Nov 1993
  • State action · SOX Oct 1993

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

1 station · latest Jul 2020

1.06 · max 1.06 mg/l as N · 2

Arsenic

1 station · latest Jul 2020

1.9 · max 1.9 ug/l · 1

Copper

1 station · latest Jul 2020

0.99 · max 0.99 ug/l · 1

Fluoride

1 station · latest Jul 2020

0.2 · max 0.2 mg/l · 1

Lead

1 station · latest Jul 2020

0.176 · max 0.176 ug/l · 1

Manganese

1 station · latest Jul 2020

1.83 · max 1.83 ug/l · 1

Uranium

1 station · latest Jul 2020

0.175 · max 0.175 ug/l · 1

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 CA3410001 — 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.