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Tap water quality report

Green Brier Subdivision

EPA monitoring tested this supplier for 60 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

60
contaminants tested
14
detected
35
people served
52
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Private
Counties served
Dubuque

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.

52
health-based violations
161
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2008-10-01 → 2008-10-31
MCL Health-based Resolved 2008-10-01 → 2008-10-31
MCL Health-based Resolved 2008-10-01 → 2008-10-31
MCL Health-based Resolved 2008-10-01 → 2008-10-31
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-08-01 → 2008-08-31
MCL Health-based Resolved 2008-08-01 → 2008-08-31

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 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Copper
233.45 µg/L 18%
of the EPA limit 1300 µg/L
worst single sample: 260 µg/L
10/10 SYR4 2014–2017
Lead
5.075 µg/L 34%
of the EPA limit 15 µg/L
worst single sample: 5.2 µg/L
6/10 SYR4 2014–2017
Bromodichloromethane
2.179 µg/L
No EPA limit set
worst single sample: 2.25 µg/L
3/3 SYR4 2013–2019
Chloroform
10.975 µg/L
No EPA limit set
worst single sample: 11.8 µg/L
3/3 SYR4 2013–2019
TTHM
13.237 µg/L 17%
of the EPA limit 80 µg/L
worst single sample: 13.9 µg/L
3/3 SYR4 2013–2019
Combined Radium (-226 And -228)
1.4 pCi/L 28%
of the EPA limit 5 pCi/L
 2/2 SYR4 2012–2018
Dibromochloromethane
1.426 µg/L
No EPA limit set
worst single sample: 1.47 µg/L
2/3 SYR4 2013–2019
Dichloroacetic Acid
6.0245 µg/L
No EPA limit set
worst single sample: 6.1 µg/L
2/3 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
10.365 µg/L 17%
of the EPA limit 60 µg/L
worst single sample: 10.6 µg/L
2/3 SYR4 2013–2019
Trichloroacetic Acid
1.9085 µg/L
No EPA limit set
worst single sample: 1.94 µg/L
2/3 SYR4 2013–2019
Chromium
2.1 µg/L 2.1%
of the EPA limit 100 µg/L
 1/1 SYR4 2014
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2014
Monochloroacetic Acid
2.54 µg/L
No EPA limit set
 1/3 SYR4 2013–2019
46 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBariumBenzeneBenzo(A)PyreneBromoformChlorobenzeneCadmiumCarbon TetrachlorideDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylbenzeneGlyphosateLassoMercuryMonobromoacetic AcidNitratePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GREEN BRIER SUBDIVSION
Phone
563-590-7483
Email
[email protected]

Frequently asked questions about Green Brier Subdivision

Is Green Brier Subdivision tap water safe to drink?

EPA monitoring detected 14 contaminants in Green Brier 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 Green Brier Subdivision's water?

EPA monitoring detected Lead, Copper, Lead, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Green Brier Subdivision serve?

Green Brier Subdivision reports serving 35 people in Iowa, per its EPA record.

Has Green Brier Subdivision had any water quality violations?

The EPA has 161 violations on file for Green Brier Subdivision, of which 52 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.