At least one open health-based violation as of 2026-10-15.
EPA record checked 2026-10-06
From EPA's record for NM3509623. PurityMap is independent of City of Rio Rancho.
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31 results are on record. These 5 come first: results above a listed reference, then those closest to a legal limit.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 467 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 | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Lead (90th percentile) | 2 µg/L | 15 µg/L federal action level | Below the listed reference | 2024–2026 monitoring period (still open) | Lead & Copper Rule 90th-percentile: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| 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 | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| 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 | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| 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 | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| 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 | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| 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 | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| 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 | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-07 | UCMR5 Analytical Results: RIO RANCHO WATER & WW SERVICES (NM3509623) |
1health-based violation in the last 10 years · at least one open as of 2026-10-15
From EPA SDWIS. Counted once per contaminant per year in the Track record subject score. A violation record is a compliance fact, not a health verdict.
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
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
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.
Tested your own tap? Read your results →
Local help
Call to be connected with a local plumbing provider about lead service lines, repiping or fixture replacement.
One email when a new sampling round is published or a result moves across its reference.
Follow this water →Its phone number on EPA record is 505-896-8812. These details come from the system's EPA record.
PurityMap has no verified website for City of Rio Rancho. Your water bill lists the ways to pay. PurityMap does not take payments.
EPA's records list City of Rio Rancho as serving Rio Rancho, New Mexico. Your water bill names your supplier.
PurityMap's record for City of Rio Rancho holds results for 29 PFAS substances. None was detected, and none is above a federal legal limit. Each result links to its source in the city report.
At least one open health-based violation as of 2026-10-15: that is what EPA's record shows for City of Rio Rancho. The record comes from EPA's SDWIS compliance database.
City of Rio Rancho is on EPA record as drawing from surface water.
Start with the hot-or-cold tap check. Where City of Rio Rancho reported something related, it's shown below.
Lead at City of Rio Rancho: 2 µg/L (90th percentile, 2024–2026 monitoring period (still open)). Lead has no taste, so a taste neither shows nor rules it out.