No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting November 2021.
Serves about 200 people (84 connections) with groundwater from its own wells.
From EPA's record for CA5800820. PurityMap is independent of River Highlands CSD.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From November 2021 | E. coli | – | – | 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 →River Highlands CSD's phone number on EPA record is 530-749-5493. Its mailing address is 915 8TH STREET SUITE 125, MARYSVILLE, CA 95901.
According to EPA's record, River Highlands CSD uses groundwater from its own wells.
EPA's record shows 1 health-based violation for River Highlands CSD in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting November 2021. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in River Highlands CSD'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 River Highlands CSD. Its phone number on EPA record is 530-749-5493. Its mailing address on EPA record is 915 8TH STREET SUITE 125, MARYSVILLE, CA 95901. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.