Short answer: No measured result is above a legal limit. City of Tehachapi serves 9,094 residents.
EPA lists this system for the city. Your water bill or annual water quality report names your actual supplier.
Source: EPA SDWIS 2026Q2.
TEHACHAPI, CITY OF (EPA PWSID CA1510020) delivers groundwater to 9,094 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.
1health-based violation in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score.
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.
Every filing is listed; the Track record score counts at most one per contaminant per year.
Open
to Open
The records describe the system. A certified lab test shows what reaches your glass.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.
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 →
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Tehachapi, no regulated PFAS were detected in EPA's 2024 testing. TEHACHAPI, CITY OF (PWSID CA1510020) has a Purity Score of 74/100 (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.
TEHACHAPI, CITY OF (PWS ID CA1510020) is the public water system on record for Tehachapi, California, serving about 9,094 people. Confirm the utility on your water bill before acting on a specific finding.
Groundwater (primary source of record in EPA SDWIS).
None of the 29 PFAS in EPA's UCMR 5 testing (2025-05-20 to 2025-12-01) was detected. "Not detected" means below the lab's reporting limit, not proven zero.
Lead is not in Tehachapi'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 Tehachapi holds 31 findings: 31 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
Follow Tehachapi's water
One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.
Double opt-in: we email a confirmation link. Unsubscribe anytime. No spam.
| 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 | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| 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 | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| 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 | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| 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 | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| 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 | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| 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: TEHACHAPI, CITY OF (CA1510020) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| 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 | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-12-01 | UCMR5 Analytical Results: TEHACHAPI, CITY OF (CA1510020) |
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)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
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: TEHACHAPI, CITY OF (CA1510020)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: TEHACHAPI, CITY OF (CA1510020)
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 City of Tehachapi reported something related, it's shown below.
Lead at City of Tehachapi: 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.