Skip to content
AquaCensus

Public water system · CA2300708

Active

Ridgewood Water System

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

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

Population served

265

Service connections

167

Primary source

GU

Groundwater under influence of surface water

System type

CWS

Community water system

System record

PWSIDCA2300708
System typeCommunity water system
Activity statusActive
Population served265
Service connections167
Primary water sourceGroundwater under influence of surface water
Owner typePrivate
Primacy agencyCA state drinking water program
City served—
StateCalifornia
ZIP—
CountyMendocino County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
2023-06-20Required treatment not metFailure to Filter (SWTR) · code 42Surface Water Treatment Rulecode 0200YesResolved
2017-10-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2013-01-01Monitoring and reportingMonitoring, Regular · code 03Nitritecode 1041NoResolved
2013-01-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved
2012-08-01Public notice, recordkeeping or otherVariance/Exemption/Other Compliance · code 08Not reportedNoResolved
2012-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2008-01-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2006-01-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Total trihalomethanes (TTHM)code 2950NoResolved
2005-01-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Haloacetic acids (HAA5)code 2456NoResolved
2002-07-01Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51Lead and Copper Rulecode 5000NoResolved
2001-08-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
1998-12-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Ridgewood Water System: frequently asked questions

Is Ridgewood Water System's water safe to drink?

Ridgewood Water System is an active community water system regulated under the Safe Drinking Water Act, overseen by the CA state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Ridgewood Water System?

Ridgewood Water System (PWSID CA2300708) is a private-owned community water system, regulated by the CA state drinking water program.

How many people does Ridgewood Water System serve?

Ridgewood Water System reports serving 265 people through 167 service connections in Mendocino County, California.

Where does Ridgewood Water System get its water?

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

Other water systems in Mendocino County

Water systemCountyPopulation servedTypeSource
Ukiah, City ofMendocino16,607CommunitySurface water
Fort Bragg, City ofMendocino6,919CommunitySurface water
Willits, City ofMendocino6,175CommunitySurface water
Millview County Water DistrictMendocino5,500CommunitySurface water
Redwood Valley County Water DistrictMendocino5,200CommunitySurface water
Willow County Water DistrictMendocino3,797CommunityPurchased surface water

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.