PWSID
CA2910003
State
California
City
TRUCKEE
Population served
36,730
Primary source
Groundwater
Score history
▼ 12 points — the score moved from 100 to 88 on Jun 18, 2026, as newly published EPA data was incorporated.
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 Nov 2023). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
4.6 ppt
limit 4 ppt
Lithium
9,160 ppt
limit —
PFPeA
4.6 ppt
limit —
PFHxA
4.4 ppt
limit —
Violations & enforcement
2
Violations on record
0
Unaddressed
2
Health-based
6
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement May 2014. Official EPA record →
Recent enforcement actions
- State action · SOX May 2014
- State action · SFL Oct 2009
- EPA/federal action · EOX Mar 2000
- State action · SOX Sep 1996
- State action · SIA Sep 1996
- EPA/federal action · EFJ May 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.
Nitrate
1 station · latest Jun 2022
Arsenic
1 station · latest Jun 2022
Fluoride
1 station · latest Jun 2022
Manganese
1 station · latest Jun 2022
Uranium
1 station · latest Jun 2022
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 CA2910003 — 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.