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Tap water quality report

Rolling Oaks Subdivision

EPA monitoring tested this supplier for 98 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

98
contaminants tested
15
detected
11,572
people served
4
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Ground water
Ownership
Mixed public/private
Counties served
Citrus

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.

4
health-based violations
63
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2009-10-01 → 2009-10-31
MCL Health-based Archived 2009-10-01 → 2009-10-31
MCL Health-based Archived 2006-07-01 → 2006-07-31
MCL Health-based Archived 1997-05-01 → 1997-05-31
MR Monitoring Resolved 2025-06-01 → 2025-06-30
MR Monitoring Resolved 2025-03-01 → 2025-03-31
MON Monitoring Resolved 2024-09-01 → 2024-09-30
MON Monitoring Resolved 2024-09-01 → 2024-09-30
MON Monitoring Resolved 2024-07-01 → 2024-07-31
MON Monitoring Resolved 2024-07-01 → 2024-07-31

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
Nitrate
2300 µg/L 23%
of the EPA limit 10000 µg/L
 178/178 SYR4 2012–2019
TTHM
10 µg/L 13%
of the EPA limit 80 µg/L
 41/47 SYR4 2012–2019
Barium
4.9 µg/L 0.2%
of the EPA limit 2000 µg/L
 18/18 SYR4 2014–2017
Copper
4.6 µg/L 0.4%
of the EPA limit 1300 µg/L
 17/18 SYR4 2014–2017
Arsenic
0.8000 µg/L 8%
of the EPA limit 10 µg/L
 16/18 SYR4 2014–2017
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2020
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 11/18 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
3.38 µg/L 5.6%
of the EPA limit 60 µg/L
 10/47 SYR4 2012–2019
Lead
1.7 µg/L 11%
of the EPA limit 15 µg/L
 7/18 SYR4 2014–2017
Fluoride
110 µg/L 2.8%
of the EPA limit 4000 µg/L
 5/36 SYR4 2014–2017
Heptachlor Epoxide
0.0220 µg/L 11%
of the EPA limit 0.2000 µg/L
 4/22 SYR4 2012–2017
Antimony, Total
0.9000 µg/L 15%
of the EPA limit 6 µg/L
 2/18 SYR4 2014–2017
Cadmium
1.8 µg/L 36%
of the EPA limit 5 µg/L
 1/18 SYR4 2014–2017
Di(2-ethylhexyl) Phthalate
2 µg/L 33%
of the EPA limit 6 µg/L
 1/23 SYR4 2014–2017
Thallium, Total
1.5 µg/L 75%
of the EPA limit 2 µg/L
 1/18 SYR4 2014–2017
83 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-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ARTHUR FAIELLO
Phone
314-736-4743

Frequently asked questions about Rolling Oaks Subdivision

Is Rolling Oaks Subdivision tap water safe to drink?

EPA monitoring detected 15 contaminants in Rolling Oaks Subdivision'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 Rolling Oaks Subdivision's water?

EPA monitoring detected Nitrate, TTHM, Barium, Copper, Arsenic, and others. The full list with the level and data source for each is above.

How many people does Rolling Oaks Subdivision serve?

Rolling Oaks Subdivision reports serving 11,572 people in Missouri, per its EPA record.

Has Rolling Oaks Subdivision had any water quality violations?

The EPA has 63 violations on file for Rolling Oaks Subdivision, of which 4 are health-based (a contaminant limit or required treatment was breached) and 2 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.