KEN MAR GARDENS
PWSID: CA4000648 · Arroyo Grande, CA · Serves 84 people
According to EPA Safe Drinking Water Information System (SDWIS), KEN MAR GARDENS (PWSID CA4000648) in Arroyo Grande, CA is listed as a CWS water system covering about 84 people. The same extract lists 36 health-based violation records spanning 2020-2025. Those 36 health-based rows for KEN MAR GARDENS cover contaminants such as Selenium, Nitrate; they remain historical EPA registry entries, not a current compliance or drinkability score.
KEN MAR GARDENS has 36 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 2 distinct EPA contaminant codes appear in this system's record, including Selenium, Nitrate. Recorded violations span 2020–2025. Day-to-day primacy enforcement for this system runs through the California drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current 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)
- CA4000648
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Arroyo Grande, CA
- Population Served
- 84
- Health Violations
- Yes (36)
What contaminants are in this water system?
Violation History (36)
| Contaminant | Health | Date |
|---|---|---|
| Selenium | Yes | Oct 1, 2025 |
| Selenium | Yes | Jul 1, 2025 |
| Selenium | Yes | Apr 1, 2025 |
| Selenium | Yes | Apr 1, 2025 |
| Selenium | Yes | Jan 1, 2025 |
| Selenium | Yes | Jan 1, 2025 |
| Selenium | Yes | Oct 1, 2024 |
| Selenium | Yes | Oct 1, 2024 |
| Selenium | Yes | Jul 1, 2024 |
| Selenium | Yes | Jul 1, 2024 |
| Selenium | Yes | Apr 1, 2024 |
| Selenium | Yes | Apr 1, 2024 |
| Selenium | Yes | Jan 1, 2024 |
| Selenium | Yes | Jan 1, 2024 |
| Nitrate | Yes | Jan 1, 2024 |
| Nitrate | Yes | Jan 1, 2024 |
| Nitrate | Yes | Jan 1, 2024 |
| Selenium | Yes | Oct 1, 2023 |
| Selenium | Yes | Oct 1, 2023 |
| Selenium | Yes | Jul 1, 2023 |
| Selenium | Yes | Jul 1, 2023 |
| Selenium | Yes | Apr 1, 2023 |
| Selenium | Yes | Apr 1, 2023 |
| Selenium | Yes | Jan 1, 2023 |
| Selenium | Yes | Jan 1, 2023 |
| Selenium | Yes | Oct 1, 2022 |
| Selenium | Yes | Oct 1, 2022 |
| Selenium | Yes | Jul 1, 2022 |
| Selenium | Yes | Jul 1, 2022 |
| Selenium | Yes | Apr 1, 2022 |
| Selenium | Yes | Apr 1, 2022 |
| Selenium | Yes | Jan 1, 2022 |
| Selenium | Yes | Oct 1, 2021 |
| Selenium | Yes | Jul 1, 2021 |
| Selenium | Yes | Apr 5, 2021 |
| Selenium | Yes | Oct 1, 2020 |
Frequently Asked Questions
What does EPA SDWIS list for KEN MAR GARDENS?
How many people does KEN MAR GARDENS serve?
What violations does KEN MAR GARDENS have?
What contaminants have been found in KEN MAR GARDENS water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest KEN MAR GARDENS on cumulative violation count (36) and EPA-reported population served (84). Violation-count peers include GULF COUNTY WATER DEPARTMENT, LEESBURG, CITY OF, ATTAPULGUS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
KEN MAR GARDENS (CA4000648) is drawn from EPA SDWIS. Nearby county systems in this extract include SAN LUIS OBISPO WATER DEPARTMENT; CITY OF PASO ROBLES WATER DIVISION; ATASCADERO MUTUAL WATER CO; CITY OF ARROYO GRANDE UTILITIES DIVISION. Health-based rows (36 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.