Skip to content
AquaCensus

Public water system · CA4100555

Active

Portola Improvement Association Mwc

Community water system in San Mateo County, California, drawing primarily on groundwater under influence of surface water.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

90

Service connections

34

Primary source

GU

Groundwater under influence of surface water

System type

CWS

Community water system

System record

PWSIDCA4100555
System typeCommunity water system
Activity statusActive
Population served90
Service connections34
Primary water sourceGroundwater under influence of surface water
Owner typePrivate
Primacy agencyCA state drinking water program
City served
StateCalifornia
ZIP

Violations & enforcement

BeganViolationContaminantHealth-basedStatus
2005-01-01031038NoResolved
2005-01-01032990NoResolved
2005-01-01032989NoResolved
2005-01-01032987NoResolved
2005-01-01032981NoResolved
2005-01-01032985NoResolved
2005-01-01032968NoResolved
2005-01-01032983NoResolved
2005-01-01032979NoResolved
2005-01-01032984NoResolved
2005-01-01032380NoResolved
2005-01-01032955NoResolved

Portola Improvement Association Mwc: frequently asked questions

Is Portola Improvement Association Mwc's water safe to drink?

Portola Improvement Association Mwc is an active community water system regulated under the Safe Drinking Water Act, overseen by the CA state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Portola Improvement Association Mwc?

Portola Improvement Association Mwc (PWSID CA4100555) is a private-owned community water system, regulated by the CA state drinking water program.

How many people does Portola Improvement Association Mwc serve?

Portola Improvement Association Mwc reports serving 90 people through 34 service connections in San Mateo County, California.

Where does Portola Improvement Association Mwc get its water?

EPA SDWIS lists this system's primary water source as groundwater under influence of surface water.

Other water systems in San Mateo County

Water systemCountyPopulation servedTypeSource
City of Daly CitySan Mateo104,901CommunityPurchased surface water
California Water Service - San MateoSan Mateo102,348CommunityPurchased surface water
City of Redwood CitySan Mateo92,819CommunityPurchased surface water
California Water Service-S San FranciscoSan Mateo64,146CommunityPurchased surface water
California Water Service - Bear GulchSan Mateo61,431CommunitySurface water
City of San BrunoSan Mateo42,631CommunityPurchased surface water