PWSID
CA3610050
State
California
City
UPLAND
Population served
78,376
Primary source
Surface water
Score history
No change since tracking began Jun 18, 2026.
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 2024). Levels in parts per trillion (ppt).
PFPeA
5.4 ppt
limit —
PFHxA
5.2 ppt
limit —
PFBS
3 ppt
limit —
Violations & enforcement
2
Violations on record
0
Unaddressed
0
Health-based
9
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Oct 2020. Official EPA record →
Recent enforcement actions
- State action · SOX Oct 2020
- State action · SFL Jan 2020
- State action · SOX Jul 2016
- State action · SFL Mar 2016
- EPA/federal action · EOX Mar 2000
- EPA/federal action · EOX Dec 1993
- EPA/federal action · EO+ Nov 1993
- EPA/federal action · EFL Dec 1992
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 May 2022
Arsenic
1 station · latest May 2022
Copper
1 station · latest May 2022
Fluoride
1 station · latest May 2022
Uranium
1 station · latest May 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 CA3610050 — 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.