SIERRA LINDA MUTUAL WATER CO
PWSID: CA2000506 · North Fork, CA · Serves 200 people
SIERRA LINDA MUTUAL WATER CO has 97 health-based violations out of 97 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
SIERRA LINDA MUTUAL WATER CO (PWSID CA2000506) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 200 people in North Fork, CA, and is subject to primacy enforcement by the California drinking-water program.
The system's federal compliance record contains 97 total violations, with 97 classified as health-based (MCL exceedances or treatment-technique failures). 6 distinct contaminants have been cited, including Barium, Lead (Action Level), PFOA + PFOS. Recorded violations span 2016–2025.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the California state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- CA2000506
- System Type
- CWS
- Water Source
- Groundwater
- Location
- North Fork, CA
- Population Served
- 200
- Health Violations
- Yes (97)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Barium | 39 | 39 |
| Lead (Action Level) | 24 | 24 |
| PFOA + PFOS | 22 | 22 |
| Chromium | 6 | 6 |
| Mercury | 5 | 5 |
| Gross Alpha | 1 | 1 |
Violation History (97)
| Contaminant | Health | Date |
|---|---|---|
| Barium | Yes | Apr 1, 2025 |
| Lead (Action Level) | Yes | Apr 1, 2025 |
| Chromium | Yes | Apr 1, 2025 |
| Mercury | Yes | Apr 1, 2025 |
| PFOA + PFOS | Yes | Apr 1, 2025 |
| Barium | Yes | Jan 1, 2025 |
| Lead (Action Level) | Yes | Jan 1, 2025 |
| PFOA + PFOS | Yes | Jan 1, 2025 |
| Chromium | Yes | Jan 1, 2025 |
| Mercury | Yes | Jan 1, 2025 |
| Gross Alpha | Yes | Oct 17, 2024 |
| Barium | Yes | Oct 1, 2024 |
| Lead (Action Level) | Yes | Oct 1, 2024 |
| PFOA + PFOS | Yes | Oct 1, 2024 |
| Barium | Yes | Apr 1, 2024 |
| Barium | Yes | Apr 1, 2024 |
| Lead (Action Level) | Yes | Apr 1, 2024 |
| Lead (Action Level) | Yes | Apr 1, 2024 |
| PFOA + PFOS | Yes | Apr 1, 2024 |
| PFOA + PFOS | Yes | Apr 1, 2024 |
| Chromium | Yes | Apr 1, 2024 |
| Mercury | Yes | Apr 1, 2024 |
| PFOA + PFOS | Yes | Apr 1, 2024 |
| PFOA + PFOS | Yes | Apr 1, 2024 |
| Barium | Yes | Jan 1, 2024 |
| Barium | Yes | Jan 1, 2024 |
| Lead (Action Level) | Yes | Jan 1, 2024 |
| Lead (Action Level) | Yes | Jan 1, 2024 |
| PFOA + PFOS | Yes | Jan 1, 2024 |
| PFOA + PFOS | Yes | Jan 1, 2024 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Lead (Action Level) | Yes | Oct 1, 2023 |
| Lead (Action Level) | Yes | Oct 1, 2023 |
| PFOA + PFOS | Yes | Oct 1, 2023 |
| PFOA + PFOS | Yes | Oct 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Lead (Action Level) | Yes | Jul 1, 2023 |
| Lead (Action Level) | Yes | Jul 1, 2023 |
| PFOA + PFOS | Yes | Jul 1, 2023 |
| PFOA + PFOS | Yes | Jul 1, 2023 |
| Barium | Yes | Apr 1, 2023 |
| Barium | Yes | Apr 1, 2023 |
| Lead (Action Level) | Yes | Apr 1, 2023 |
| Lead (Action Level) | Yes | Apr 1, 2023 |
| Chromium | Yes | Apr 1, 2023 |
| Mercury | Yes | Apr 1, 2023 |
| PFOA + PFOS | Yes | Apr 1, 2023 |
| PFOA + PFOS | Yes | Apr 1, 2023 |
| Lead (Action Level) | Yes | Jan 1, 2023 |
| Lead (Action Level) | Yes | Jan 1, 2023 |
| PFOA + PFOS | Yes | Jan 1, 2023 |
| PFOA + PFOS | Yes | Jan 1, 2023 |
| Chromium | Yes | Jan 1, 2023 |
| Barium | Yes | Jan 1, 2023 |
| Barium | Yes | Jan 1, 2023 |
| Chromium | Yes | Jan 1, 2023 |
| Mercury | Yes | Jan 1, 2023 |
| Barium | Yes | Oct 1, 2022 |
| Barium | Yes | Oct 1, 2022 |
| Barium | Yes | Jul 1, 2022 |
| Barium | Yes | Jul 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Jan 1, 2022 |
| Barium | Yes | Jan 1, 2022 |
| Barium | Yes | Oct 1, 2021 |
| Barium | Yes | Oct 1, 2021 |
| Barium | Yes | Jul 1, 2021 |
| Barium | Yes | Jul 1, 2021 |
| Barium | Yes | Apr 1, 2021 |
| Barium | Yes | Apr 1, 2021 |
| Barium | Yes | Jan 1, 2021 |
| Barium | Yes | Jan 1, 2021 |
| Barium | Yes | Oct 1, 2020 |
| Barium | Yes | Apr 1, 2019 |
| Lead (Action Level) | Yes | Apr 1, 2019 |
| Lead (Action Level) | Yes | Apr 1, 2019 |
| Barium | Yes | Jan 1, 2019 |
| Lead (Action Level) | Yes | Jan 1, 2019 |
| Lead (Action Level) | Yes | Jan 1, 2019 |
| PFOA + PFOS | Yes | Jan 1, 2019 |
| Barium | Yes | Jan 1, 2018 |
| Lead (Action Level) | Yes | Jan 1, 2018 |
| Lead (Action Level) | Yes | Jan 1, 2018 |
| PFOA + PFOS | Yes | Jan 1, 2018 |
| Barium | Yes | Jan 1, 2017 |
| Lead (Action Level) | Yes | Jan 1, 2017 |
| Lead (Action Level) | Yes | Jan 1, 2017 |
| PFOA + PFOS | Yes | Jan 1, 2017 |
| PFOA + PFOS | Yes | Jan 1, 2017 |
| Lead (Action Level) | Yes | Jan 1, 2016 |
| Barium | Yes | Jan 1, 2016 |
| PFOA + PFOS | Yes | Jan 1, 2016 |
Frequently Asked Questions
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.