1 open health-based violation on EPA record.
Serves about 2,335 people (834 connections) with groundwater from its own wells.
From EPA's record for CA3510002. PurityMap is independent of City of San Juan Bautista.
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4 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2024 | Lead and copper rule revisions | – | – | Unaddressed |
| From October 2017 | Nitrate + Nitrite | 12 mg/L | – | Resolved |
| From July 2017 | Nitrate + Nitrite | 14 mg/L | – | Resolved |
| From April 2017 | Nitrate + Nitrite | 12 mg/L | – | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
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.
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Follow this water →City of San Juan Bautista's phone number on EPA record is 831-623-4661. Its mailing address is PO Box 1420, SAN JUAN BAUTISTA, CA 95045.
According to EPA's record, City of San Juan Bautista uses groundwater from its own wells.
EPA's record shows 4 health-based violations for City of San Juan Bautista in the 10 years to July 9, 2026. EPA's record lists 1 open health-based violation. EPA also lists 3 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in City of San Juan Bautista'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 City of San Juan Bautista. Its phone number on EPA record is 831-623-4661. Its mailing address on EPA record is PO Box 1420, SAN JUAN BAUTISTA, CA 95045. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.