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Tap water quality report

Twelve Oaks S/D

EPA monitoring tested this supplier for 79 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
10
detected
234
people served
0
health-based violations
North Carolina rankingsLead in North CarolinaPFAS in North Carolina
Water source
Ground water
Ownership
Private
Counties served
Guilford

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.

0
health-based violations
22
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2024-07-01
Other Monitoring Resolved 2024-07-01
Other Monitoring Resolved 2024-07-01
MR Monitoring Resolved 2004-07-01 → 2004-07-31
MR Monitoring Resolved 2004-07-01 → 2004-07-31
MR Monitoring Resolved 2004-07-01 → 2004-07-31
MR Monitoring Resolved 2003-07-01 → 2003-09-30
MR Monitoring Resolved 2003-07-01 → 2003-09-30
MR Monitoring Resolved 2003-07-01 → 2003-09-30
MR Monitoring Resolved 2003-07-01 → 2003-09-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
421 µg/L 32%
of the EPA limit 1300 µg/L
 14/20 SYR4 2012–2019
Nitrate
1460 µg/L 15%
of the EPA limit 10000 µg/L
 12/16 SYR4 2012–2019
Nitrate-Nitrite
1400 µg/L 14%
of the EPA limit 10000 µg/L
 4/4 SYR4 2012–2015
Lead
0.0015 mg/L 10%
of the EPA limit 0.0150 mg/L
 3/3 LCR 2025
Combined Radium (-226 And -228)
2.8 pCi/L 56%
of the EPA limit 5 pCi/L
 2/2 SYR4 2013–2016
TTHM
3.6 µg/L 4.5%
of the EPA limit 80 µg/L
 2/3 SYR4 2013–2019
Bromoform
1.2 µg/L
No EPA limit set
 1/2 SYR4 2016–2019
Combined Uranium
3.5313 µg/L 12%
of the EPA limit 30 µg/L
 1/1 SYR4 2016
Dibromochloromethane
1.4 µg/L
No EPA limit set
 1/2 SYR4 2016–2019
Gross Beta Particle Activity
8.8 pCi/L
No EPA limit set
 1/1 SYR4 2016
69 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MILLIRON, BRENT
Phone
919-653-6999
Email
bmilliron@aquaamerica.com

Frequently asked questions about Twelve Oaks S/D

Is Twelve Oaks S/D tap water safe to drink?

EPA monitoring detected 10 contaminants in Twelve Oaks S/D'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 Twelve Oaks S/D's water?

EPA monitoring detected Copper, Nitrate, Nitrate-Nitrite, Lead, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Twelve Oaks S/D serve?

Twelve Oaks S/D reports serving 234 people in North Carolina, per its EPA record.

Has Twelve Oaks S/D had any water quality violations?

The EPA has 22 violations on file for Twelve Oaks S/D, of which 0 are 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.