COASTSIDE COUNTY WATER DISTRICT
PWSID: CA4110011 · Half Moon Bay, CA · Serves 18,940 people
According to EPA Safe Drinking Water Information System (SDWIS), COASTSIDE COUNTY WATER DISTRICT (PWSID CA4110011) in Half Moon Bay, CA is listed as a CWS water system covering about 18,940 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 COASTSIDE COUNTY WATER DISTRICT; those counts stay historical EPA registry rows, not a current compliance or drinkability score.
COASTSIDE COUNTY 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)
- CA4110011
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Half Moon Bay, CA
- Population Served
- 18,940
- Health Violations
- None
No Violations on Record
COASTSIDE COUNTY WATER DISTRICT has no violations recorded in the EPA Safe Drinking Water Information System.
Frequently Asked Questions
What does EPA SDWIS list for COASTSIDE COUNTY WATER DISTRICT?
How many people does COASTSIDE COUNTY WATER DISTRICT serve?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest COASTSIDE COUNTY WATER DISTRICT on cumulative violation count (0) and EPA-reported population served (18,940). Population peers include LEBANON, CITY OF, CITY OF RIO GRANDE CITY, HARRIS COUNTY MUD 82.
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
COASTSIDE COUNTY WATER DISTRICT (CA4110011) 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.