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Tap water quality report

Winterset Municipal Waterworks

EPA monitoring tested this supplier for 92 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

92
contaminants tested
20
detected
5,428
people served
111
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Surface water
Ownership
Local government
Counties served
Madison

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.

111
health-based violations
138
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2018-10-01 → 2018-10-31
TT Health-based Resolved 2018-10-01 → 2018-10-31
TT Health-based Resolved 2018-10-01 → 2018-10-31
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2007-01-01 → 2007-03-31
MCL Health-based Resolved 2007-01-01 → 2007-03-31
MCL Health-based Resolved 2007-01-01 → 2007-03-31

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
Nitrate
6600 µg/L 66%
of the EPA limit 10000 µg/L
worst single sample: 7500 µg/L
164/192 SYR4 2012–2019
Bromodichloromethane
16 µg/L
No EPA limit set
worst single sample: 21 µg/L
84/84 SYR4 2012–2019
Chloroform
59.85 µg/L
No EPA limit set
worst single sample: 67 µg/L
84/84 SYR4 2012–2019
TTHM
70.85 µg/L 89%
of the EPA limit 80 µg/L
worst single sample: 95 µg/L
84/84 SYR4 2012–2019
Dibromochloromethane
7.3 µg/L
No EPA limit set
worst single sample: 7.5 µg/L
83/84 SYR4 2012–2019
Dichloroacetic Acid
28.8 µg/L
No EPA limit set
worst single sample: 39 µg/L
83/84 SYR4 2012–2019
Chlorite
518.5 µg/L 52%
of the EPA limit 1000 µg/L
worst single sample: 620 µg/L
82/96 SYR4 2012–2019
Trichloroacetic Acid
13 µg/L
No EPA limit set
worst single sample: 31 µg/L
81/84 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
44.85 µg/L 75%
of the EPA limit 60 µg/L
worst single sample: 74 µg/L
78/84 SYR4 2012–2019
Copper
239 µg/L 18%
of the EPA limit 1300 µg/L
worst single sample: 330 µg/L
38/40 SYR4 2014–2017
Dibromoacetic Acid
2 µg/L
No EPA limit set
 24/84 SYR4 2012–2019
Fluoride
846 µg/L 21%
of the EPA limit 4000 µg/L
worst single sample: 910 µg/L
17/17 SYR4 2012–2013
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Monochloroacetic Acid
4 µg/L
No EPA limit set
 12/84 SYR4 2012–2019
Bromoform
0.8650 µg/L
No EPA limit set
worst single sample: 0.9000 µg/L
8/84 SYR4 2012–2019
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 5/40 SYR4 2014–2017
Xylenes, Total
12.525 µg/L 0.1%
of the EPA limit 10000 µg/L
worst single sample: 13 µg/L
2/5 SYR4 2012–2018
Atrazine
0.1000 µg/L 3.3%
of the EPA limit 3 µg/L
 1/3 SYR4 2012–2018
Barium
120 µg/L 6%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Ethylbenzene
2.3 µg/L 0.3%
of the EPA limit 700 µg/L
 1/4 SYR4 2012–2018
72 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosBenzeneBenzo(A)PyreneChlorobenzeneCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatGlyphosateHfpo-DaLassoMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WINTERSET MUNICIPAL WATERWORKS
Phone
515-462-3601
Email
[email protected]

Frequently asked questions about Winterset Municipal Waterworks

Is Winterset Municipal Waterworks tap water safe to drink?

EPA monitoring detected 20 contaminants in Winterset Municipal Waterworks'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 Winterset Municipal Waterworks's water?

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

How many people does Winterset Municipal Waterworks serve?

Winterset Municipal Waterworks reports serving 5,428 people in Iowa, per its EPA record.

Has Winterset Municipal Waterworks had any water quality violations?

The EPA has 138 violations on file for Winterset Municipal Waterworks, of which 111 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.