Home/ Directory/ CA/ Lone Pine

Water system · PWSID 090600138

Lone Pine

Lone Pine, CA · ~535 people served

Check your exact address → Lone Pine overview
100
Excellent
PurityRadar safety score

PWSID

090600138

State

California

City

Lone Pine

Population served

535

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

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

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

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

86

Violations on record

1

Unaddressed

6

Health-based

132

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2026. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Sep 2025 Unaddressed
Monitoring & reporting · Nitrate began Jan 2018 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2017 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2017 Resolved
Monitoring & reporting · Nitrate began Jan 2016 Resolved
Monitoring & reporting · Total coliform began Aug 2015 Resolved
Monitoring & reporting · Total coliform began Jun 2015 Resolved
Monitoring & reporting · Total coliform began May 2015 Resolved
Monitoring & reporting · Total coliform began Apr 2015 Resolved
Monitoring & reporting · Total coliform began Feb 2015 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved
Monitoring & reporting · Nitrate began Jan 2015 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Feb 2026
  • EPA/federal action · EOX Nov 2020
  • EPA/federal action · EO6 Nov 2020
  • EPA/federal action · EOX Apr 2020
  • EPA/federal action · EOX Apr 2020
  • EPA/federal action · EOX Apr 2020
  • EPA/federal action · EOX Apr 2020
  • EPA/federal action · EOX Apr 2020

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

Fluoride

5 stations · latest Jun 2025

0.5 · max 1 mg/L · 17

Uranium

5 stations · latest Jun 2025

0.008 · max 0.055 mg/L · 14

Arsenic

3 stations · latest Jun 2025

0.018 · max 0.031 mg/L · 10

Manganese

4 stations · latest Jun 2025

0.026 · max 0.068 mg/L · 9

Nitrate

4 stations · latest Jun 2025

0.4 · max 5.8 mg/L · 8

Copper

3 stations · latest Jun 2025

0.0021 · max 0.004 mg/L · 3

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 090600138 — 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.