No health-based violations on EPA record since 2016.
Serves about 56,253 people (9,142 connections) with groundwater from its own wells.
From EPA's record for CA2710001. PurityMap is independent of Alco Water Service.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2023 to September 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 65.1 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 | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| 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 | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| 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 | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| 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 | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| 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 | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| 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 | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| 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 | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-09-12 | UCMR5 Analytical Results: ALCO WATER SERVICE (CA2710001) |
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.
Get PurityMap updates about this water system.
Follow this water →Alco Water Service's phone number on EPA record is 831-424-0441. Its mailing address is 249 WILLIAMS ROAD, SALINAS, CA 93905.
According to EPA's record, Alco Water Service uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Alco Water Service's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Alco Water Service. Its phone number on EPA record is 831-424-0441. Its mailing address on EPA record is 249 WILLIAMS ROAD, SALINAS, CA 93905. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.