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Tap water quality report

Peosta Water Supply

EPA monitoring tested this supplier for 60 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

60
contaminants tested
16
detected
2,278
people served
6
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Local government
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.

6
health-based violations
65
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MCL Health-based Resolved 2002-02-01 → 2002-02-28
MR Monitoring Resolved 2006-06-01
MR Monitoring Resolved 2006-06-01
MR Monitoring Resolved 2006-06-01
MR Monitoring Resolved 2006-06-01

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
341.3 µg/L 26%
of the EPA limit 1300 µg/L
worst single sample: 515 µg/L
40/40 SYR4 2013–2019
Lead
0.00050 mg/L 3.3%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Bromoform
2.222 µg/L
No EPA limit set
worst single sample: 2.42 µg/L
5/7 SYR4 2013–2019
Dibromochloromethane
1.214 µg/L
No EPA limit set
worst single sample: 1.3 µg/L
5/7 SYR4 2013–2019
Lead
2.055 µg/L 14%
of the EPA limit 15 µg/L
worst single sample: 2.1 µg/L
4/40 SYR4 2013–2019
Combined Radium (-226 And -228)
3.54 pCi/L 71%
of the EPA limit 5 pCi/L
worst single sample: 3.6 pCi/L
3/3 SYR4 2012–2018
Dibromoacetic Acid
1.086 µg/L
No EPA limit set
worst single sample: 1.12 µg/L
3/7 SYR4 2013–2019
Nitrate
200 µg/L 2%
of the EPA limit 10000 µg/L
 2/36 SYR4 2012–2019
TTHM
3.649 µg/L 4.6%
of the EPA limit 80 µg/L
worst single sample: 3.72 µg/L
2/7 SYR4 2013–2019
Xylenes, Total
3.404 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 3.53 µg/L
2/11 SYR4 2012–2018
Antimony, Total
0.4000 µg/L 6.7%
of the EPA limit 6 µg/L
 1/1 SYR4 2013
Barium
43.1 µg/L 2.2%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Ethylbenzene
0.5400 µg/L 0.1%
of the EPA limit 700 µg/L
 1/11 SYR4 2012–2018
Fluoride
700 µg/L 18%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
Monochloroacetic Acid
4.24 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
5.36 µg/L 8.9%
of the EPA limit 60 µg/L
 1/7 SYR4 2013–2019
44 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DArsenicAtrazineBenzeneBenzo(A)PyreneBromodichloromethaneChlorobenzeneCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatGlyphosateLassoMercuryMonobromoacetic AcidPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PEOSTA MUNICIPAL WATER SUPPLY
Phone
563-556-8755
Email
[email protected]

Frequently asked questions about Peosta Water Supply

Is Peosta Water Supply tap water safe to drink?

EPA monitoring detected 16 contaminants in Peosta Water Supply'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 Peosta Water Supply's water?

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

How many people does Peosta Water Supply serve?

Peosta Water Supply reports serving 2,278 people in Iowa, per its EPA record.

Has Peosta Water Supply had any water quality violations?

The EPA has 65 violations on file for Peosta Water Supply, of which 6 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.