Is Johnston Co-West Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Johnston

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	1998-09-01 → 1998-09-30
RPT	Monitoring	Resolved	2025-02-11
RPT	Monitoring	Resolved	2025-02-11
RPT	Monitoring	Resolved	2025-02-11
RPT	Monitoring	Resolved	2025-02-11
RPT	Monitoring	Resolved	2025-02-11
Other	Monitoring	Resolved	2021-07-01
Other	Monitoring	Resolved	2020-07-01
Other	Monitoring	Resolved	2019-07-01
MR	Monitoring	Resolved	2006-07-01 → 2006-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfhxa	0.0092 µg/L	12/16	2025
PFOS	0.0141 µg/L	12/16	2025
Pfpea	0.0092 µg/L	12/16	2025
PFOA	0.0076 µg/L	9/16	2025
PFHXS	0.0053 µg/L	7/16	2025
Pfba	0.0156 µg/L	5/16	2025
PFBS	0.0045 µg/L	5/16	2025
Pfhpa	0.0050 µg/L	4/16	2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Total Haloacetic Acids (HAA5)	65.1 µg/L 109% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 81.5 µg/L	263/263	SYR4	2012–2019
TTHM	75 µg/L 94% of the EPA limit 80 µg/L worst single sample: 106 µg/L	254/254	SYR4	2012–2019
Bromodichloromethane	16 µg/L No EPA limit set worst single sample: 27 µg/L	144/144	SYR4	2013–2019
Chloroform	48.55 µg/L No EPA limit set worst single sample: 59 µg/L	144/144	SYR4	2013–2019
Trichloroacetic Acid	20.05 µg/L No EPA limit set worst single sample: 28 µg/L	140/144	SYR4	2013–2019
Dichloroacetic Acid	21.3 µg/L No EPA limit set worst single sample: 33 µg/L	138/144	SYR4	2013–2019
Dibromochloromethane	25.55 µg/L No EPA limit set worst single sample: 32 µg/L	130/144	SYR4	2013–2019
Dibromoacetic Acid	11 µg/L No EPA limit set worst single sample: 15 µg/L	85/144	SYR4	2013–2019
Copper	144 µg/L 11% of the EPA limit 1300 µg/L worst single sample: 221 µg/L	41/90	SYR4	2012–2018
Bromoform	27.75 µg/L No EPA limit set worst single sample: 31 µg/L	36/144	SYR4	2013–2019
Monobromoacetic Acid	13.5 µg/L No EPA limit set worst single sample: 24 µg/L	36/144	SYR4	2013–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	15/15	LCR	2024
Monochloroacetic Acid	13.35 µg/L No EPA limit set worst single sample: 14 µg/L	14/144	SYR4	2013–2019
Simazine	0.4050 µg/L 10% of the EPA limit 4 µg/L worst single sample: 0.5100 µg/L	11/26	SYR4	2012–2019
Fluoride	586.5 µg/L 15% of the EPA limit 4000 µg/L worst single sample: 590 µg/L	8/8	SYR4	2012–2019
Atrazine	0.1780 µg/L 5.9% of the EPA limit 3 µg/L worst single sample: 0.1800 µg/L	2/26	SYR4	2012–2019
Lead	5.9 µg/L 39% of the EPA limit 15 µg/L worst single sample: 6 µg/L	2/90	SYR4	2012–2018
Mercury	1 µg/L 50% of the EPA limit 2 µg/L	1/8	SYR4	2012–2019
Toluene	0.8000 µg/L 0.1% of the EPA limit 1000 µg/L	1/11	SYR4	2012–2019

79 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaNitrateOxamylPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: FARMER, CHANDRA
Phone: 919-938-5826
Email: [email protected]

Frequently asked questions about Johnston Co-West

Is Johnston Co-West tap water safe to drink?

EPA monitoring detected 27 contaminants in Johnston Co-West's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Johnston Co-West's water?

EPA monitoring detected Total Haloacetic Acids (HAA5), TTHM, Bromodichloromethane, Chloroform, Trichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Johnston Co-West serve?

Johnston Co-West reports serving 99,027 people in North Carolina, per its EPA record.

Has Johnston Co-West had any water quality violations?

The EPA has 18 violations on file for Johnston Co-West, of which 1 is health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.