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Tap water quality report

Gavin Estates

EPA monitoring tested this supplier for 60 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

60
contaminants tested
17
detected
52
people served
0
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.

0
health-based violations
175
violations on file
11
still open
ViolationTypeStatusPeriod
MON Monitoring Archived 2026-03-01 → 2026-03-31
MON Monitoring Resolved 2026-01-01 → 2026-01-31
MON Monitoring Resolved 2026-01-01 → 2026-01-31
MON Monitoring Resolved 2026-01-01 → 2026-01-31
MR Monitoring Resolved 2024-12-13
MR Monitoring Resolved 2024-12-13
MR Monitoring Resolved 2024-12-13
MR Monitoring Resolved 2024-12-13
MR Monitoring Unaddressed 2024-12-01
Other Monitoring Resolved 2023-12-24

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
Copper
176.4 µg/L 14%
of the EPA limit 1300 µg/L
worst single sample: 245 µg/L
15/15 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Nitrate
1200 µg/L 12%
of the EPA limit 10000 µg/L
 6/22 SYR4 2012–2018
Bromodichloromethane
5.442 µg/L
No EPA limit set
worst single sample: 5.62 µg/L
3/3 SYR4 2012–2018
Dibromochloromethane
3.327 µg/L
No EPA limit set
worst single sample: 3.44 µg/L
3/3 SYR4 2012–2018
TTHM
15.31 µg/L 19%
of the EPA limit 80 µg/L
worst single sample: 15.7 µg/L
3/3 SYR4 2012–2018
Trichloroacetic Acid
2.414 µg/L
No EPA limit set
worst single sample: 2.42 µg/L
3/3 SYR4 2012–2018
Chloroform
6.6265 µg/L
No EPA limit set
worst single sample: 6.68 µg/L
2/3 SYR4 2012–2018
Dibromoacetic Acid
0.8195 µg/L
No EPA limit set
worst single sample: 0.8300 µg/L
2/3 SYR4 2012–2018
Dichloroacetic Acid
4.963 µg/L
No EPA limit set
worst single sample: 5.05 µg/L
2/3 SYR4 2012–2018
Lead
5.02 µg/L 33%
of the EPA limit 15 µg/L
worst single sample: 5.1 µg/L
2/15 SYR4 2012–2018
Monochloroacetic Acid
2.571 µg/L
No EPA limit set
worst single sample: 2.58 µg/L
2/3 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
8.7345 µg/L 15%
of the EPA limit 60 µg/L
worst single sample: 8.76 µg/L
2/3 SYR4 2012–2018
Bromoform
1.05 µg/L
No EPA limit set
 1/3 SYR4 2012–2018
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/1 SYR4 2014
Combined Radium (-226 And -228)
3 pCi/L 60%
of the EPA limit 5 pCi/L
 1/1 SYR4 2018
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2014
43 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)PyreneChlorobenzeneCadmiumCarbon TetrachlorideDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylbenzeneGlyphosateLassoMercuryMonobromoacetic AcidPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GAVIN ESTATES
Phone
563-552-8646
Email
[email protected]

Frequently asked questions about Gavin Estates

Is Gavin Estates tap water safe to drink?

EPA monitoring detected 17 contaminants in Gavin Estates'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 Gavin Estates's water?

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

How many people does Gavin Estates serve?

Gavin Estates reports serving 52 people in Iowa, per its EPA record.

Has Gavin Estates had any water quality violations?

The EPA has 175 violations on file for Gavin Estates, of which 0 are health-based (a contaminant limit or required treatment was breached) and 11 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.