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Tap water quality report

Lake Adelle Subd

EPA monitoring tested this supplier for 69 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
8
detected
380
people served
14
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Ground water
Ownership
Private
Counties served
Jefferson

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.

14
health-based violations
65
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30
MCL Health-based Resolved 2006-04-01 → 2006-04-30

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
Nitrate-Nitrite
80 µg/L 0.8%
of the EPA limit 10000 µg/L
 32/32 SYR4 2012–2019
Lead
0.00073 mg/L 4.9%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2025
Copper
224 µg/L 17%
of the EPA limit 1300 µg/L
 14/14 SYR4 2014–2017
Lead
3.14 µg/L 21%
of the EPA limit 15 µg/L
 7/14 SYR4 2014–2017
Barium
309 µg/L 15%
of the EPA limit 2000 µg/L
 4/4 SYR4 2014–2017
Chromium
7.67 µg/L 7.7%
of the EPA limit 100 µg/L
 3/4 SYR4 2014–2017
Fluoride
170 µg/L 4.3%
of the EPA limit 4000 µg/L
 3/4 SYR4 2014–2017
Mercury
0.3100 µg/L 16%
of the EPA limit 2 µg/L
 1/4 SYR4 2014–2017
61 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, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined Radium (-226 And -228)DichloromethaneDalaponDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DIEDRICH, JERRY
Phone
636-274-2674

Frequently asked questions about Lake Adelle Subd

Is Lake Adelle Subd tap water safe to drink?

EPA monitoring detected 8 contaminants in Lake Adelle Subd'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 Lake Adelle Subd's water?

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

How many people does Lake Adelle Subd serve?

Lake Adelle Subd reports serving 380 people in Missouri, per its EPA record.

Has Lake Adelle Subd had any water quality violations?

The EPA has 65 violations on file for Lake Adelle Subd, of which 14 are health-based (a contaminant limit or required treatment was breached) and 1 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.