Short answer: No measured result is above a legal limit; lithium sits above a screening level. Rio Linda/Elverta Community Water Dist serves 15,460 residents.
Your water bill or annual water quality report names your actual supplier.
RIO LINDA/ELVERTA COMMUNITY WATER DIST (EPA PWSID CA3410018) delivers groundwater to 15,460 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.
0health-based violations in the last 10 years
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.
No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.
A tap test can confirm levels at your home before you choose treatment.
PFHxS 4 ng/L, below the 10 ng/L limit (+1 more PFAS detected)
Lithium 12.9 µg/L, above the 10.0 µg/L EPA health reference level
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Silver Lake Research
Lead, bacteria, nitrate, copper, iron, chlorine, hardness and pH
What it can't tell you: Each test gives a yes/no or a rough range, not a lab number, and it cannot detect PFAS or arsenic.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
When your results arrive, read them here →
Each card names which Rio Linda findings its current certification covers, and which it doesn't.
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No product in our catalogue has verified certification for these concerns yet.
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Rio Linda, PFAS were detected below their limits. RIO LINDA/ELVERTA COMMUNITY WATER DIST (PWSID CA3410018) has a Purity Score of 93/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.
RIO LINDA/ELVERTA COMMUNITY WATER DIST (PWS ID CA3410018) is the public water system on record for Rio Linda, California, serving about 15,460 people. Confirm the utility on your water bill before acting on a specific finding.
Groundwater (primary source of record in EPA SDWIS).
In EPA's UCMR 5 testing (2024-05-22 to 2024-11-06), PFHxA was detected at 4.8 ng/L, below the 400,000 ng/L state limit and PFHxS was detected at 4 ng/L, below the 10 ng/L federal limit.
Lead is not in Rio Linda's current published record. Lead usually enters from a building's own pipes and fixtures, so a certified home test is the way to know yours.
PurityMap's current record for Rio Linda holds 31 findings: 1 above a reference, 2 detected within the reference and 28 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
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| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 12.9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorohexanesulfonic acid (PFHxS) | 4 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorohexanoic acid (PFHxA) | 4.8 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2024–2026 monitoring period (still open) | Lead & Copper Rule 90th-percentile: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-22 to 2024-11-06 | UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018) |
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.
UCMR5 Analytical Results
UCMR5 Analytical Results: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: RIO LINDA/ELVERTA COMMUNITY WATER DIST (CA3410018)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Start with the hot-or-cold tap check. Where Rio Linda/Elverta Community Water Dist reported something related, it's shown below.
Lead at Rio Linda/Elverta Community Water Dist: not detected (90th percentile, 2024–2026 monitoring period (still open)). Lead has no taste, so a taste neither shows nor rules it out.
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.