WaterQ

Hard Rock Fire Mountain Water System

PWSID: 090605172

A Excellent

Score 100/100 — Excellent

Data Updated: March 2026 Source: EPA SDWIS

System Information

Type
Non-Transient Non-Community
Water Source
Ground Water
Population Served
9,500
Owner Type
N
Status
Active
Population Served
9,500
System Type
Non-Transient Non-Community
Water Source
Ground Water
Violation Status
No Violations
Results-Based Recommendation

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Water Quality Test Results

Contaminant Detected EPA Limit (MCL) Status
Lead (90th percentile) 2025-12-31 0.005 mg/L 0.015 mg/L Compliant

Contaminant Trends

Lead (90th percentile) Trend

MCL: 0.015 mg/L
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Violation History

2022-10-01
Resolved - Major

MON

MON - Rule 111

Resolved: 2022-12-02

2022-10-01
Resolved - Minor

Other

Other - Rule 410

Resolved: 2023-01-25

2022-10-01
Resolved - Minor

Other

Other - Rule 410

Resolved: 2023-01-25

2022-09-01
Resolved - Major

MON

MON - Rule 111

Resolved: 2022-12-02

Frequently Asked Questions

Is Hard Rock Fire Mountain Water System water safe to drink?
Hard Rock Fire Mountain Water System in Oroville, CA has a water quality score of 100/100 (Excellent). There are no unresolved violations at this time.
How many people does Hard Rock Fire Mountain Water System serve?
Hard Rock Fire Mountain Water System provides drinking water to approximately 9,500 people in the Oroville, CA area.
What contaminants have been found in Hard Rock Fire Mountain Water System water?
No contaminants have exceeded EPA limits in recent tests. Visit the full report for detailed test results.
How many violations does Hard Rock Fire Mountain Water System have?
Hard Rock Fire Mountain Water System has a total of 4 violation(s) on record. All violations have been resolved.
Where does Hard Rock Fire Mountain Water System get its water?
Hard Rock Fire Mountain Water System uses ground water as its primary water source.

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