WESTBOROUGH WATER DISTRICT
PWSID: CA4110027 · South San Francisco, CA · Serves 13,486 people
According to EPA Safe Drinking Water Information System (SDWIS), WESTBOROUGH WATER DISTRICT (PWSID CA4110027) in South San Francisco, CA is listed as a CWS water system covering about 13,486 people. PlainEnviro's health-based extract shows zero health-based violation records for this system. PlainEnviro's extract shows zero health-based violation rows for WESTBOROUGH WATER DISTRICT; those counts stay historical EPA registry rows, not a current compliance or drinkability score.
WESTBOROUGH WATER DISTRICT has no health-based violation records in PlainEnviro's EPA SDWIS extract. This does not establish current safety or compliance.
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. No contaminant code appears in the extract. 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)
- CA4110027
- System Type
- CWS
- Water Source
- Surface Water
- Location
- South San Francisco, CA
- Population Served
- 13,486
- Health Violations
- None
No Violations on Record
WESTBOROUGH WATER DISTRICT has no violations recorded in the EPA Safe Drinking Water Information System.
Frequently Asked Questions
What does EPA SDWIS list for WESTBOROUGH WATER DISTRICT?
How many people does WESTBOROUGH WATER DISTRICT serve?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest WESTBOROUGH WATER DISTRICT on cumulative violation count (0) and EPA-reported population served (13,486). Population peers include PLOVER WATERWORKS, BAINBRIDGE ISLAND CITY OF, OKMULGEE PWA.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
Explore More
About This Data
WESTBOROUGH WATER DISTRICT (CA4110027) is drawn from EPA SDWIS. Nearby county systems in this extract include SFPUC CITY DISTRIBUTION DIVISION; CITY OF DALY CITY; CITY OF REDWOOD CITY; CITY OF SAN BRUNO. Health-based rows (none listed) 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.