KNOLL ENTERPRISES
PWSID: CA3600504 · Ludlow, CA · Serves 500 people
According to EPA Safe Drinking Water Information System (SDWIS), KNOLL ENTERPRISES (PWSID CA3600504) in Ludlow, CA is listed as a CWS water system covering about 500 people. The same extract lists 125 health-based violation records spanning 2016-2025. Those 125 health-based rows for KNOLL ENTERPRISES cover contaminants such as Arsenic, Combined Uranium, Gross Alpha Particle Activity; they remain historical EPA registry entries, not a current compliance or drinkability score.
KNOLL ENTERPRISES has 125 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. 5 distinct EPA contaminant codes appear in this system's record, including Arsenic, Combined Uranium, Gross Alpha Particle Activity. Recorded violations span 2016–2025. 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)
- CA3600504
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Ludlow, CA
- Population Served
- 500
- Health Violations
- Yes (125)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Arsenic | 81 | 81 |
| Combined Uranium | 39 | 39 |
| Gross Alpha Particle Activity | 3 | 3 |
| Manganese | 1 | 1 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
Violation History (125)
| Contaminant | Health | Date |
|---|---|---|
| Combined Uranium | Yes | Oct 1, 2025 |
| Arsenic | Yes | Oct 1, 2025 |
| Arsenic | Yes | Jul 1, 2025 |
| Combined Uranium | Yes | Jul 1, 2025 |
| Combined Uranium | Yes | Apr 1, 2025 |
| Arsenic | Yes | Apr 1, 2025 |
| Combined Uranium | Yes | Jan 1, 2025 |
| Arsenic | Yes | Jan 1, 2025 |
| Manganese | Yes | Jan 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Combined Uranium | Yes | Oct 1, 2024 |
| Combined Uranium | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Jul 1, 2024 |
| Arsenic | Yes | Jul 1, 2024 |
| Combined Uranium | Yes | Jul 1, 2024 |
| Combined Uranium | Yes | Jul 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Oct 1, 2023 |
| Arsenic | Yes | Oct 1, 2023 |
| Arsenic | Yes | Jul 1, 2023 |
| Arsenic | Yes | Jul 1, 2023 |
| Arsenic | Yes | Jul 1, 2023 |
| Arsenic | Yes | Apr 1, 2023 |
| Arsenic | Yes | Apr 1, 2023 |
| Arsenic | Yes | Apr 1, 2023 |
| Arsenic | Yes | Jan 1, 2023 |
| Arsenic | Yes | Jan 1, 2023 |
| Arsenic | Yes | Jan 1, 2023 |
| Combined Uranium | Yes | Oct 1, 2022 |
| Combined Uranium | Yes | Oct 1, 2022 |
| Arsenic | Yes | Oct 1, 2022 |
| Arsenic | Yes | Oct 1, 2022 |
| Combined Uranium | Yes | Jul 1, 2022 |
| Combined Uranium | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Combined Uranium | Yes | Apr 1, 2022 |
| Combined Uranium | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Combined Uranium | Yes | Jan 1, 2022 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Oct 1, 2021 |
| Combined Uranium | Yes | Oct 1, 2021 |
| Combined Uranium | Yes | Jul 1, 2021 |
| Arsenic | Yes | Jul 1, 2021 |
| Arsenic | Yes | Jul 1, 2021 |
| Combined Uranium | Yes | Apr 1, 2021 |
| Arsenic | Yes | Apr 1, 2021 |
| Arsenic | Yes | Apr 1, 2021 |
| Combined Uranium | Yes | Jan 1, 2021 |
| Arsenic | Yes | Jan 1, 2021 |
| Arsenic | Yes | Jan 1, 2021 |
| Arsenic | Yes | Oct 1, 2020 |
| Arsenic | Yes | Oct 1, 2020 |
| Combined Uranium | Yes | Oct 1, 2020 |
| Arsenic | Yes | Jul 1, 2020 |
| Arsenic | Yes | Jul 1, 2020 |
| Combined Uranium | Yes | Jul 1, 2020 |
| Combined Uranium | Yes | Apr 1, 2020 |
| Arsenic | Yes | Apr 1, 2020 |
| Arsenic | Yes | Apr 1, 2020 |
| Combined Uranium | Yes | Jan 1, 2020 |
| Arsenic | Yes | Jan 1, 2020 |
| Arsenic | Yes | Jan 1, 2020 |
| Arsenic | Yes | Oct 1, 2019 |
| Arsenic | Yes | Oct 1, 2019 |
| Combined Uranium | Yes | Oct 1, 2019 |
| Arsenic | Yes | Jul 1, 2019 |
| Arsenic | Yes | Jul 1, 2019 |
| Combined Uranium | Yes | Jul 1, 2019 |
| Arsenic | Yes | Apr 1, 2019 |
| Arsenic | Yes | Apr 1, 2019 |
| Combined Uranium | Yes | Apr 1, 2019 |
| Arsenic | Yes | Jan 1, 2019 |
| Arsenic | Yes | Jan 1, 2019 |
| Combined Uranium | Yes | Jan 1, 2019 |
| Arsenic | Yes | Oct 1, 2018 |
| Arsenic | Yes | Oct 1, 2018 |
| Combined Uranium | Yes | Oct 1, 2018 |
| Arsenic | Yes | Jul 1, 2018 |
| Arsenic | Yes | Jul 1, 2018 |
| Combined Uranium | Yes | Jul 1, 2018 |
| Combined Uranium | Yes | Apr 1, 2018 |
| Arsenic | Yes | Apr 1, 2018 |
| Arsenic | Yes | Apr 1, 2018 |
| Arsenic | Yes | Jan 1, 2018 |
| Arsenic | Yes | Jan 1, 2018 |
| Combined Uranium | Yes | Jan 1, 2018 |
| Arsenic | Yes | Oct 1, 2017 |
| Arsenic | Yes | Oct 1, 2017 |
Frequently Asked Questions
What does EPA SDWIS list for KNOLL ENTERPRISES?
How many people does KNOLL ENTERPRISES serve?
What violations does KNOLL ENTERPRISES have?
What contaminants have been found in KNOLL ENTERPRISES water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest KNOLL ENTERPRISES on cumulative violation count (125) and EPA-reported population served (500). Violation-count peers include MILLTOWN-WASHBURN WATER USERS, TRI-WATER SYSTEM, OKMULGEE CO. RWD #7 (NUYAKA). Population peers include SACKMAN, TRAPPER CREEK WATERING POINT, FCMTC WATERWORKS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
Explore More
About This Data
KNOLL ENTERPRISES (CA3600504) is drawn from EPA SDWIS. Nearby county systems in this extract include CUCAMONGA VALLEY WATER DISTRICT; ONTARIO MUNICIPAL UTILITIES COMPANY; SAN BERNARDINO VALLEY WD; EAST VALLEY WATER DISTRICT. Health-based rows (125 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.