MCFARLAND, CITY OF
PWSID: CA1510013 · Mcfarland, CA · Serves 14,161 people
According to EPA Safe Drinking Water Information System (SDWIS), MCFARLAND, CITY OF (PWSID CA1510013) in Mcfarland, CA is listed as a CWS water system covering about 14,161 people. The same extract lists 33 health-based violation records spanning 2009-2025. Those 33 health-based rows for MCFARLAND, CITY OF cover contaminants such as Arsenic, Nitrate, Coliform (TCR); they remain historical EPA registry entries, not a current compliance or drinkability score.
MCFARLAND, CITY OF has 33 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. 3 distinct EPA contaminant codes appear in this system's record, including Arsenic, Nitrate, Coliform (TCR). Recorded violations span 2009–2025. 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)
- CA1510013
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Mcfarland, CA
- Population Served
- 14,161
- Health Violations
- Yes (33)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Arsenic | 22 | 22 |
| Nitrate | 9 | 9 |
| Coliform (TCR) | 2 | 2 |
Violation History (33)
| Contaminant | Health | Date |
|---|---|---|
| Nitrate | Yes | Oct 1, 2025 |
| Nitrate | Yes | Jan 1, 2025 |
| Nitrate | Yes | Oct 1, 2024 |
| Nitrate | Yes | Apr 1, 2024 |
| Nitrate | Yes | Jan 1, 2024 |
| Nitrate | Yes | Aug 1, 2023 |
| Nitrate | Yes | Aug 1, 2023 |
| Nitrate | Yes | Aug 1, 2023 |
| Nitrate | Yes | Aug 1, 2023 |
| Coliform (TCR) | Yes | Mar 1, 2016 |
| Coliform (TCR) | Yes | Mar 1, 2016 |
| Arsenic | Yes | Jan 1, 2013 |
| Arsenic | Yes | Jan 1, 2013 |
| Arsenic | Yes | Oct 1, 2012 |
| Arsenic | Yes | Oct 1, 2012 |
| Arsenic | Yes | Apr 1, 2012 |
| Arsenic | Yes | Apr 1, 2012 |
| Arsenic | Yes | Jan 1, 2012 |
| Arsenic | Yes | Jan 1, 2012 |
| Arsenic | Yes | Oct 1, 2011 |
| Arsenic | Yes | Oct 1, 2011 |
| Arsenic | Yes | Jul 1, 2011 |
| Arsenic | Yes | Jul 1, 2011 |
| Arsenic | Yes | Apr 1, 2011 |
| Arsenic | Yes | Apr 1, 2011 |
| Arsenic | Yes | Jan 1, 2011 |
| Arsenic | Yes | Jan 1, 2011 |
| Arsenic | Yes | Apr 1, 2010 |
| Arsenic | Yes | Apr 1, 2010 |
| Arsenic | Yes | Jan 1, 2010 |
| Arsenic | Yes | Jan 1, 2010 |
| Arsenic | Yes | Oct 1, 2009 |
| Arsenic | Yes | Oct 1, 2009 |
Frequently Asked Questions
What does EPA SDWIS list for MCFARLAND, CITY OF?
How many people does MCFARLAND, CITY OF serve?
What violations does MCFARLAND, CITY OF have?
What contaminants have been found in MCFARLAND, CITY OF water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MCFARLAND, CITY OF on cumulative violation count (33) and EPA-reported population served (14,161). Violation-count peers include DESERT GARDENS RV RESORT CO-OP, INC, OAK CREEK TOWN OF, LAKE HARNEY WATER ASSOCIATION. Population peers include CITY OF HOUSTON WILLOW CHASE, ANTIOCH, MEDWAY WATER DEPARTMENT.
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
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About This Data
MCFARLAND, CITY OF (CA1510013) is drawn from EPA SDWIS. Nearby county systems in this extract include DELANO, CITY OF; OILDALE MWC; TEJON CASTAC WD - I5 & LAVAL RD; VAUGHN WC INC. Health-based rows (33 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.