RIVERSIDE HIGHLAND WATER COMPANY
PWSID: CA3610057 · GRAND TERRACE, CA · Serving 20,188 people
Type: CWSOwner: PSource: GW
Settlement eligible
Settlement details
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Upgrade to ProExceeds MCL
One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.
Key contaminants vs MCL
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31
Exact contamination levels
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Upgrade to ProDetection summary
10
PFAS compounds detected
11 ppt
Highest single detection
2024-07-22
Latest sample date
complete
Data completeness
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 246 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| 6:2 FTS | ND | — | Below MRL | 2024-07-22 |
| 8:2 FTS | ND | — | Below MRL | 2024-07-22 |
| PFHpS | ND | — | Below MRL | 2024-07-22 |
| PFPeS | ND | — | Below MRL | 2024-07-22 |
| NFDHA | ND | — | Below MRL | 2024-07-22 |