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Public water system · NC0392160

Active

Medfield Estates S/D

At a glance

Medfield Estates S/D (PWSID NC0392160) is an active community water system in Wake County, North Carolina. It reports serving 772 people through 304 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2024.

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

Population served

772

Service connections

304

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDNC0392160
System typeCommunity water system
Activity statusActive
Population served772
Service connections304
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyNC state drinking water program
City servedCary
StateNorth Carolina
ZIP—
CountyWake County

How does Medfield Estates S/D compare with other water systems in Wake County?

By EPA's size categories, Medfield Estates S/D is a small system (501 to 3,300 people). Wake County has 441 active public water systems. Its population served is well below the county average of 2,633 people per system, and accounts for less than 0.1% of the 1,161,234 people reported by systems filed under the county. Across North Carolina, the 5,087 active systems average 1,971 people each. Nationally, the average active community water system reports serving 6,703 people, so Medfield Estates S/D is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. North Carolina has 2,031 active community water systems, 40% of the state's 5,087 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,566 North Carolina systems (90%) list groundwater as their primary source.

Who owns and regulates Medfield Estates S/D?

EPA lists Medfield Estates S/D as privately owned. The NC state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 421 of the 441 active systems in Wake County (95%) are also privately owned.

Does Medfield Estates S/D have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2024. The violations listed here began between July 1985 and July 2024. By type: 7 monitoring and reporting, 3 public notice, recordkeeping or other, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (2 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

BeganViolationContaminant or ruleHealth-basedStatus
2024-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2023-12-11ReportingReport Sample Result/Fail Monitor (RTCR) · code 4BRevised Total Coliform Rulecode 8000NoResolved
2011-07-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2006-07-27Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2002-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2002-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01Antimonycode 1074YesResolved
1985-07-01Monitoring and reportingMonitoring, Regular · code 03Fluoridecode 1025NoResolved
1985-07-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved
1985-07-01Monitoring and reportingMonitoring, Regular · code 03Arseniccode 1005NoResolved
1985-07-01Monitoring and reportingMonitoring, Regular · code 03Chromiumcode 1020NoResolved
1985-07-01Monitoring and reportingMonitoring, Regular · code 03Mercurycode 1035NoResolved
1985-07-01Monitoring and reportingMonitoring, Regular · code 03Seleniumcode 1045NoResolved

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.

Medfield Estates S/D: frequently asked questions

Who runs Medfield Estates S/D?

Medfield Estates S/D (PWSID NC0392160) is a community water system privately owned. It is regulated by the NC state drinking water program.

How many people does Medfield Estates S/D serve?

Medfield Estates S/D reports serving 772 people through 304 service connections in Wake County, North Carolina.

Where does Medfield Estates S/D get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Medfield Estates S/D have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2024. 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.

Is Medfield Estates S/D's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the NC state drinking water program.

Where can I find Medfield Estates S/D's water quality report?

As a community water system, Medfield Estates S/D must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Wake County

Water systemCountyPopulation servedTypeSource
Raleigh, City ofWake650,000CommunitySurface water
Cary, Town ofWake227,300CommunitySurface water
Apex, Town ofWake83,001CommunityPurchased surface water
Holly Springs, Town ofWake51,947CommunityPurchased surface water
Fuquay-Varina, Town ofWake42,954CommunityPurchased surface water
Bayleaf MasterWake16,715CommunityGroundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Medfield Estates S/D, PWSID NC0392160, North Carolina”, https://aquacensus.com/water-systems/north-carolina/medfield-estates-s-d-nc0392160 (data as of October 1, 2026).