Public water system · NC0351070
ActiveJohnston Co-West
At a glance
Johnston Co-West (PWSID NC0351070) is an active community water system in Johnston County, North Carolina. It reports serving 99,027 people through 38,987 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in February 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
99,027
Service connections
38,987
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Johnston Co-West compare with other water systems in Johnston County?
By EPA's size categories, Johnston Co-West is a large system (10,001 to 100,000 people). Johnston County has 54 active public water systems, and Johnston Co-West is the largest of them by population served. Its population served is about 25 times the county average of 3,982 people per system, and accounts for 46% of the 214,999 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 Johnston Co-West is about 15 times 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 132 North Carolina systems (2.6%) list surface water as their primary source.
Who owns and regulates Johnston Co-West?
EPA lists Johnston Co-West as owned by a local government. 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. 16 of the 54 active systems in Johnston County (30%) are also owned by a local government.
Does Johnston Co-West have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in February 2025. The violations listed here began between September 1998 and February 2025. By type: 4 public notice, recordkeeping or other, 2 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 8 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-02-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2006-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2001-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2001-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1998-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 8 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.
Johnston Co-West: frequently asked questions
Who runs Johnston Co-West?
Johnston Co-West (PWSID NC0351070) is a community water system owned by a local government. It is regulated by the NC state drinking water program.
How many people does Johnston Co-West serve?
Johnston Co-West reports serving 99,027 people through 38,987 service connections in Johnston County, North Carolina.
Where does Johnston Co-West get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Johnston Co-West have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in February 2025. 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 Johnston Co-West'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. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in February 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the NC state drinking water program.
Where can I find Johnston Co-West's water quality report?
As a community water system, Johnston Co-West 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 Johnston County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Clayton, Town of | Johnston | 30,876 | Community | Purchased surface water |
| Johnston Co-East | Johnston | 25,212 | Community | Surface water |
| Smithfield, Town of | Johnston | 12,900 | Community | Surface water |
| Flowers Plantation | Johnston | 11,643 | Community | Purchased surface water |
| Selma, Town of | Johnston | 6,190 | Community | Groundwater |
| Benson, Town of | Johnston | 4,802 | Community | Purchased surface water |
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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, “Johnston Co-West, PWSID NC0351070, North Carolina”, https://aquacensus.com/water-systems/north-carolina/johnston-co-west-nc0351070 (data as of October 1, 2026).