No open EPA violations as of 2026-10-15.
EPA record checked 2026-10-06
From EPA's record for CA4110013. PurityMap is independent of City of Daly City.
Every community water system publishes one each year. Your water bill or the utility's website links to it.
As listed in EPA's records. Your water bill names your supplier.
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.
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31 results are on record. These 5 come first: results above a listed reference.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 13 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 | 2023-02-09 to 2023-11-01 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| 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 | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| 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 | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| 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 | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| 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 | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| 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 | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2023–2025 monitoring period | Lead & Copper Rule 90th-percentile: CITY OF DALY CITY (CA4110013) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-11-01 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-11-01 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| 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 | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-11-01 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-11-01 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-09 to 2023-12-05 | UCMR5 Analytical Results: CITY OF DALY CITY (CA4110013) |
0health-based violations in the last 10 years · none open as of 2026-10-15
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit. Meeting a federal limit is a compliance fact, not a health clearance.
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 →
One email when a new sampling round is published or a result moves across its reference.
Follow this water →Its official website is dalycity.org, its phone number on EPA record is 650-991-8206 and its mailing address is 153 Lake Merced Blvd, DALY CITY, CA 94015. These details come from the system's EPA record and a check of its website.
Bills, starting service and stopping service are handled by City of Daly City on its official website, dalycity.org. PurityMap does not take payments.
EPA's records list City of Daly City as serving Daly City, California. Your water bill names your supplier.
PurityMap's record for City of Daly City 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.
No open EPA violations as of 2026-10-15: that is what EPA's record shows for City of Daly City. The record comes from EPA's SDWIS compliance database.
City of Daly City is on EPA record as drawing from surface water.
Start with the hot-or-cold tap check. Where City of Daly City reported something related, it's shown below.
Lead at City of Daly City: not detected (90th percentile, 2023–2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.